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Beware Big Bra

Just when I think I’ve heard it all, along comes a new wacky theory of disease causation. The claim is that bras cause breast cancer. I can see the appeal. The claim unites a number of axioms of alternative health: cancer is caused by toxins; cancer is preventable by simple things you can do at home; anything “unnatural” is bad for you.

How are these axioms combined to create the claim that bras cause breast cancer? According to the alternative health website Health & Beyond:

“Bras cause breast cancer. It’s open and shut,” says medical researcher Syd Singer…

The Singers became breast cancer sleuths in 1991 [when] Soma discovered a lump in her breast …

Could bras be constricting breast tissue, Syd wondered, hampering lymph drainage and causing degeneration?

Amazingly enough, the Singers figure it out without doing ANY research! Aren’t they smart?

The World Health Organization calls chemical toxins the primary cause of cancer. But poisons accumulating in breast tissue are normally flushed by clear lymph fluid into large clusters of lymph nodes nestling in the armpits and upper chest. The Singers found that “because lymphatic vessels are very thin, they are extremely sensitive to pressure and are easily compressed.” Chronic minimal pressure on the breasts can cause lymph valves and vessels to close.

“Less oxygen and fewer nutrients are delivered to the cells, while waste products are not flushed away,” the Singers noted. After 15 or 20 years of bra-constricted lymph drainage, cancer can result.

The Singers rushed to share their insights with major organizations, but they were ignored! Why? Could it have been because their theory is stupid, lacking proof, and in conflict with what we know about lymphatic drainage? Not according to the Singers. It’s a conspiracy!!!

Well aware that their findings were “explosive,” the Singers sent their survey results to the heads of America’s most prestigious cancer organizations and institutes. None responded. Like the cancer business, the bra business is huge. Multiply how many worldwide women buy several $25 bras every year and you end up with a multiple of the $6 billion-a-year US bra business.

Big Bra is hiding information to protect their sales! Who knew?

Of course, the Singers theory is nonsensical. When lymph drainage is impeded, the area swells up, often quite dramatically. For example, women who have had lymph nodes removed as part of breast cancer treatment often experience marked painful swelling in the arm on that side. No woman wears a bra that is tight enough to cause her breasts to swell markedly (although some would surely choose to do so if there were such a bra). There is no evidence that “toxins” accumulate in the breasts or that “toxins” are drained by way of the lymphatic system. And there’s no scientific evidence that anyone who experiences lymphedema (the medical term for swelling caused by impaired lymph drainage) in any part of the body has an increased risk of cancer in that body part.

The Singers are not bothered by such details. They’ve proven the theory to their own satisfaction. After discovering a breast lump, Soma stopped wearing her bra:

“Going bra-less for all occasions, Soma began dressing to de-emphasize her breasts. She also began regular breast massage and bicycle riding, vitamin and herbal supplementation, and drinking only purified water.

Two months later, her lump disappeared.”

Well, if that isn’t proof, what is?

Of course, the vast majority of breast lumps are not cancer, many are cysts, and a large proportion disappear spontaneously in three months, just like in Soma’s case. So what? The Singers “know” that Big Bra is concealing more than breasts. They “know” that bras cause breast cancer, and they know that Big Bra is engaged in a cover up of this important information.

What should you do? The Singers believe that you should not wear a bra, but they have kindly offered this helpful information for women who continue to trap “toxins” in their breasts:

Don’t wear this disastrous device to sleep. Take it off at home. Massage your breasts every time you remove your bra. Sing your lymphatics into health — or at least breathe deeply.

Words to live by!

Episiotomy rates dropped dramatically. Laceration rates? Not so much.

“Natural” childbirth advocates have presented episiotomies as exhibit A in their case against modern obstetrics. They argued for years that episiotomies are unnecessary, or even harmful. Research done in the 1990s seemed to confirm their view by showing a correlation between episiotomies and third and fourth degree perineal lacerations. Third degree lacerations involve disruption of the anal sphincter and fourth degree lacerations extend into the tissue of the rectum itself. Both types of lacerations can have long term consequences including bowel incontinence and recto-vaginal fistula.

Based on the correlation of episiotomies and severe lacerations, obstetrics made an about face on episiotomies. Episiotomies are now discouraged, except in specific instances. The assumption was that a decline in episiotomy rates would lead to a decline in rates of serious perineal lacerations. That has not happened.

Episiotomy in the United States: has anything changed? by Frankman et. al reviews trends in episiotomy and severe lacerations over 25 years, from 1979-2004. Although the episiotomy rate has declined dramatically, the rate of third and fourth degree lacerations has remained unchanged.

Rate of episiotomy with all vaginal deliveries decreased from 60.9% in 1979 to 24.5% in 2004…

With the use of linear regression, the rate of episiotomy with vaginal delivery
decreased by 1.4% per year from an intercept rate in 1979 of 60.9% between 1979 and 2004…

Overall AARs [age adjusted rates] of anal sphincter laceration did not change between 1979 and 2004 (4.5-5.0%).

The authors broke down the statistic into episiotomies associated with spontaneous vaginal delivery and episiotomies associated with operative vaginal delivery (forceps or vacuum).

… Episiotomy with spontaneous vaginal delivery decreased, whereas episiotomy with operative vaginal delivery remained high. Episiotomy with forceps-assisted vaginal delivery declined (83.2% in 1979 to 11.7% in 2004), whereas episiotomy with vacuum-assisted vaginal delivery increased (0.7% in 1979 to 38.1% in 2004). These changes were associated with a shift in obstetric practices favoring vacuum-assisted over forceps-assisted vaginal delivery. The overall rate of forceps-assisted vaginal delivery decreased from 8.2 per 1000 women in 1979 to 0.8 per 1000 women in 2004. The rate of vacuum-assisted vaginal deliveries increased from 0.1 per 1000 women in 1979 to 3.7 per 1000 women in 2004.

… When episiotomy with spontaneous vaginal delivery was analyzed separately, episiotomy rates decreased by 1.4% per year from a rate of 53.4% in 1979 over
the study interval. Similarly, an analysis of episiotomy rates with operative vaginal
delivery demonstrated an annual increase of 1.2% from a rate in 1979 of 84.0% between 1979 and 2004.

… When the AAR of anal sphincter laceration was evaluated by vaginal delivery type, the rates were highest among women undergoing operative vaginal delivery. The AAR for anal sphincter laceration for operative vaginal delivery increased from 7.7% in 1979 to 20.5% in 1996, followed by a decrease to 15.3% in 2004. For spontaneous vaginal delivery, the rate of anal sphincter laceration increased from 5% in 1979 to
a peak of 8.9% in 1987 and then steadily decreased to 3.5% in 2004.

In other words, for spontaneous vaginal delivery as the episiotomy rate declined by 63%, the rate of severe lacerations declined by only 30%. For operative vaginal delivery, as the rate of episiotomy declined by 40%, the rate of severe lacerations increased by 100%.

The graph below illustrates these trends. It was adapted from the paper. It shows rates of episiotomy by delivery type (solid lines) and rates of severe lacerations by delivery type (dotted lines).

The authors, staunch opponents of episiotomy insist:

Decreasing rates of episiotomy have corresponded with decreasing age-adjusted rates of anal sphincter laceration. However, rates of episiotomy and anal sphincter laceration remain high for operative vaginal delivery (50.1% and 15.3% in 2004, respectively). Episiotomy and operative vaginal delivery are well known risk factors for anal sphincter laceration.The high rates of anal sphincter laceration associated with forceps- and vacuum-assisted vaginal delivery are probably the direct result of continued use of episiotomy with these procedures

That’s not how I read the graph. The steep decline in episiotomy rates for spontaneous vaginal delivery resulted in a much more modest decline in severe lacerations. The steep decline in episiotomy rates for operative vaginal delivery resulted in an increase in severe lacerations.

The evidence does not indicate that episiotomy is associated with the persistently high rate of severe lacerations in operative vaginal deliveries. It indicates that the rate of severe lacerations seems to be independent of the episiotomy rate. In the case of spontaneous vaginal delivery, the decrease in episiotomy does not lead to a decrease of comparable magnitude in severe lacerations.

These findings suggest that there are other factors involved in the rate of severe lacerations besides episiotomy. It’s not argument for brinding back routine use of episiotomy, but it does suggest that the “dangers” of episiotomy have been exaggerated.

Maternal mortality in California

What’s going on in California? Why has the maternal mortality rate risen so sharply?

Nathanael Johnson, of California Watch, broke the story yesterday:

The mortality rate of California women who die from causes directly related to pregnancy has nearly tripled in the past decade, prompting doctors to worry about the dangers of obesity in expectant mothers and about medical complications of cesarean sections.

For the past seven months, the state Department of Public Health declined to release a report outlining the trend.

California Watch spoke with investigators who wrote the report and they confirmed the most significant spike in pregnancy-related deaths since the 1930s. Although the number of deaths is relatively small, it’s more dangerous to give birth in California than it is in Kuwait or Bosnia.

Unfortunately, it is impossible to figure out what is going on because the state of California is withholding information on the deaths. We don’t know the causes of death, the demographics of the mothers, or the level of care they received.

Although the state of California refuses to release the case by case accounting of the deaths, we can find some information. The California Maternal Mortality Care Collaborative (the same entity that is withholding the complete report) has some startling graphs on its website.

The graph above reveals several interesting findings. First, the maternal mortality rates have been rising in the US as a whole, but have been rising faster in California. Second, the large increase after 2002 reflects the change in the way that maternal mortality is reported. It had been suspected for some time that maternal mortality in the US was being substantially underestimated. New data collection forms confirmed this undercounting; hence part of the rise in maternal mortality reflects better data gathering. Third, rates of maternal mortality are so low that a few deaths can dramatically change the rates, hence the sawtooth nature of the graphs. Fourth, although the rates fluctuate from year to year, the overall trend is upwards.

The graph displaying racial differences in California maternal mortality is truly mind boggling.


Maternal mortality among Asian and Hispanic women is lower than or equal to the rates for white women. The maternal mortality rate for black women is astoundingly high, topping out at an extraordinary 54.9/100,000. That number is more than triple the rate for women of other races, and is consistent with overall US data from 2006 (white maternal mortality of 9.5/100,000 compared to black maternal mortality of 32.7/100,000). African Americans make up only 6% of the population of California, less than half the nationwide percentage, so the high rate of black maternal mortality cannot be blamed for the increase in California maternal mortality.

What is the reason for the high and rising rate of maternal mortality in California? Without patient level data, it is impossible to know. However, there are three possibilities: changing characteristics of pregnant women, changing level of care provided, and change in the type of care, specifically the rising C-section rate.

Does the increase in maternal mortality reflect an increase in obesity, age or fertility treatment in pregnant women? We don’t have access to the data that will tell us. Is the increase in maternal mortality related to California’s worsening fiscal status and associated cutbacks in services? We don’t know that either. We do know that the C-section rate has been rising dramatically all across the US. The C-section rate in California in 2006 was 31.3% almost exactly the same as the overall US rate. This is an increase from the US rate in 2003 of 27.5%, representing an increase of 13.8%.

Is the rising C-section rate responsible for the rising maternal mortality rate? Without patient level data we cannot know, but it certainly is a possibility. I have written in the past about the diminishing returns of an ever increasing C-section rate and predicted that there would be a point at which the risks to mothers would outweigh the benefits to infants. I await the release of the California report to find out if we have reached that point.

Solve any problem by throwing breast milk at it

Evidently for lactivists there is no problem so great that it can’t be solved by throwing breast milk at it. Looking at the horrific recent earthquake in Haiti you and I might see death, injury, homelessness and the threat of disease. Lactivists saw a breastfeeding problem. They embarked on not one, but two separate inane campaigns to promote their favorite cause instead of focusing on the real needs of children in Haiti. It is difficult to imagine how people can be so self absorbed.

Haiti is in desperate need of baby formula, but the lactivists actually mounted a campaign to stop shipment of formula to Haiti. Salon’s Broadsheet ran a piece entitled Formula for disaster; do donations of artificial milk help or hurt Haiti’s babies? As the piece reported “RadicalLactivist” Cassaundra Blyth embarked on a Twitter based campaign:

PLEASE! don’t send formula to Haiti! The women & children shouldn’t be victimised twice! Breastfeeding during emergencies is VITAL to health.

That’s right folks; in the midst of the greatest natural disaster in decades, lactivists are concerned that aid workers will use their precious time and even more precious formula to convince breastfeeding mothers to switch to formula. Are these people insane? Haven’t they heard that 150,000 died and hundreds of thousands more are injured. Hasn’t it occurred to them that among the dead and severely injured there are likely to be thousands if not tens of thousands of breastfeeding mothers? How are those infants to be fed?

Breastfeeding is no longer an option for these babies. The ONLY option is formula feeding. Yes, powdered formula can cause harm if mixed with contaminated water. Yes, it would be safer to give those babies pre-mixed formula. But at the moment babies are starving for lack of milk of any kind. Far more babies can be fed with shipments of powdered formula than with pre-mixed formula. Time is of the essence if starvation is to be avoided, and a group of grown women is trying to stand in the way of feeding these babies.

But the inanity does not end there. Lactivists began calling for donations of breast milk:

When lactation consultant Faith Ploude heard that babies in Haiti might need donated breast milk, she made sure to get the word out to her classes at Mercy Hospital in Miami — and her database of more than 1,000 nursing moms.

The La Leche League and the Human Milk Banking Association of North America made similar pleas.

Let’s leave aside the issue that breast milk donations would be pathetically inadequate; one thousand donations of breast milk would feed one thousand infants only once. Consider that buildings from the meanest shack to the Presidential Palace have crumbled and are uninhabitable. People are living in tents if they are lucky or in the open air if they are not. Where are the refrigerators to store the milk? Obviously there are none, and breast milk will spoil immediately if it is not refrigerated, becoming undrinkable and potential dangerous in a matter of hours.

And how is the breast milk to get to Haiti? It has been a nightmare shipping in even the most basic supplies. Breast milk that must be frozen if it is to survive until it reaches the babies.

Red Cross workers are appalled:

“Tell them not to send it,” said Eric Porterfield, a spokesman for the American Red Cross, “I’m 100 percent sure we didn’t ask for that.”

The international Emergency Nutrition Network has asked one group, the Human Milk Banking Association of North America, to retract a press release this week that issued an “urgent call” for breast milk for orphaned and premature infants in Haiti, saying the donations contradict best practices for babies in emergencies.

Such donations pose problems of transportation, screening, supply and storage and create an “unfeasible and unsafe intervention,” according to a statement from the Office of U.S. Foreign Disaster Assistance, or OFDA.

Lactivists embarked on a campaign to interfere with delivery of formula to Haiti and to send breast milk to people who couldn’t possibly use it. Was this well meaning naivite? That certainly played a role, but the lactivists were never thinking about what the infants of Haiti actually needed; they were thinking of themselves and their personal obsession with breastfeeding. They viewed this as another opportunity to self actualize by promoting their pet cause. The human tragedy of the devastation in Haiti was just another venue to showcase their belief that every child must be breastfed. The actual needs of Haitian babies were never considered.

Lactivists need to get a grip. A horrific natural disaster is not an opportunity to highlight the benefits of breastfeeding. It is a tragedy that obligates us to send the people of Haiti what they need, not simply what we’d like to give.

Sleep with your boyfriend, get pregnant, stop breast cancer!

I am eagerly awaiting the new “right to life” campaign aimed at high school girls, tentative slogan: “Sleep with your boyfriend, get pregnant, stop breast cancer!””

Well, truth be told, I don’t really know if that’s going to be their next campaign but it would be the next logical step in their pious crusade to protect the health of women. To hear the “right to life” folks tell it, an ongoing conspiracy has prevented women from learning about the association of breast cancer to abortion. Indeed the Coalition on Abortion Breast Cancer (ABC) was formed for no other purpose than to disseminate this momentous news.

Of course, the consensus among cancer experts, epidemiologists and public health officials is that abortion does not cause breast cancer, but no matter. ABC has embarked on a campaign to highlight this putative link. Not surprisingly self identified antiabortion physicians and scientists have been enthusiastic participants.

Joel Brind, PhD, professor of biology at Baruch College has thoughtfully provided the ABC folks with an analysis of a “bombshell” paper by Jessica Dolle (Risk Factors for Triple-Negative Breast Cancer in Women Under the Age of 45 Years) published in the April 2009 issue of Cancer Epidemiology. As Prof. Brind explains:

The Dolle study is based on a population of 897 cancer patients diagnosed under age 45 and 1,569 controls with a similar age distribution, all from the greater Seattle, WA area. The subjects were all subjects of earlier studies published by the Daling group during the 1990’s … for whom breast tumor tissue specimens were still available to do complete analyses for 3 prognostic tumor markers, namely, estrogen receptors (ER), progesterone receptors (PR) and HER2 receptors. The present study divides the patients thus examined into two groups: Triple negative breast cancer (TNBC), i.e., those negative for all 3 markers (187 cases) and all other combinations (710 cases; referred to as non-TNBC).

The study was specifically designed to look at the association between breast cancer and use of oral contraceptives. As part of the study, though, the authors looked at confounding factors that might impact the incidence of breast cancer. What excited the antiabortion crowd was the following table.

The bottom entry in the table looks at the impact of abortion history on subsequent development of breast cancer. The relative risk is 1.4 meaning that women who had had an abortion were 40% more likely to develop breast cancer than those who had never had an abortion.

The results were not statistically significant, but no matter. The “right to life” folks are not bothered by such trivial details. Because of their profound commitment to the health of women they want to do everything possible to prevent death from the scourge of breast cancer.

But wait! There’s more information in the table, and it is statistically significant. The best way to lower your risk of breast cancer is to have a baby before age 20. Another equally sound strategy is to have 4 or more children. Just imagine how far a girl could lower her breast cancer risk if she had 4 children before age 20!

This is important news. And since they are so concerned about preventing breast cancer, surely the folks at ABC will soon be embarking on a campaign to promote teen pregnancy. Not only should teens get pregnant, they should get pregnant over and over again. That’s the best way to reduce the risk of developing breast cancer in the future and the folks at ABC feel that preventing breast cancer is their most important priority.

But wait! I can find no mention on the ABC website, or on any antiabortion website of the protective effect of teen pregnancy on developing breast cancer. What could that mean? Could it be that their pious concern for the health of women is nothing more than a bald faced and cynical attempt to prevent women from having abortions? Could it be that they really don’t care about the future health of women at all? It could be, and that would force us to a very sad realization. Indeed, there’s really no way to avoid the conclusion that the antiabortion folks who promote a link between abortion and breast cancer are nothing more than hypocrites, who don’t care about breast cancer (since they don’t mention the protective effect of teen pregnancy).

In fact, we may be forced to conclude that they don’t care about the health of women at all. They never mention at all the most important health effect of abortion: even if it were true that abortion raised a woman’s risk of breast cancer by 40%, it doesn’t change the fact that carrying a pregnancy to term raises her risk of death by 1500%!

And the state with the largest increase in teen pregnancy is …

Surprise! It’s Alaska, home of that stalwart supporter of abstinence only education, Sarah Palin, and her daughter Bristol, a teen who became pregnant outside of marriage. That startling bit of information is was included in CDC statistics that formed the basis for a new review calling attention to a worrisome development. After years of dropping steadily, the teen pregnancy rate has plateaued and begun to rise.

According to a report from the Guttmacher Institute, U.S. Teenage Pregnancies, Births and Abortions: National and State Trends and Trends by Race and Ethnicity:

In 2005, the U.S. teenage pregnancy rate reached its lowest point in more than 30 years (69.5), down 41% since its peak in 1990 (116.9). However, in 2006, the rate increased for the first time in more than a decade, rising 3%…

… [F]or the first time since the early 1990s, overall rates of pregnancy and birth—and, to a lesser extent, rates of abortion—among teenagers and young women increased from 2005 to 2006. It is too soon to tell whether this reversal is simply a short-term fluctuation, a more lasting stabilization or the beginning of a longer-term increase. Preliminary data on births for 2007 show a further increase in the birthrate among all women, including teenagers …

Twenty-eight states had statistically significant changes in teen pregnancy rates, 22 states had increases in teen pregnancy rates, while 4 had decreases. Alaska had the largest increase, the teen pregnancy rate rising a startling 19%. It holds the dubious distinction of beating out traditional leader Mississippi, which experienced an increased rate of teen pregnancy of 13%.

Opponents of abstinence only education were quick to suggest that such programs are to blame:

“One of the nation’s shining success stories of the past two decades is in danger of unraveling,” said Sarah Brown of the National Campaign to Prevent Teen and Unplanned Pregnancy. “Clearly, the nation’s collective efforts to convince teens to postpone childbearing must be more creative and more intense, and they must begin today.”

But the increase is hardly an endorsement of values neutral, fact based sex education. Even, Heather Boonstra, Guttmacher’s senior public policy associate, acknowledges that:

… the reasons for the increase are probably complex and multifold. “We’ve been seeing declines in contraceptive use,” she says, probably at least in part because of complacency about the HIV virus that fueled a rise in condom use among teens in the 1990s. She also says teen pregnancy seems to be more acceptable in many American towns and cities as teens flock to blockbuster movies like Juno (which positively portrays a pregnant teen) and see pregnant peers in their classes, something that was rare several decades ago.

The data indicate that both intended and unintended teen pregnancies rose:

The teenage birthrate in 2006 was 41.9 births per 1,000 women. This was 32% lower than the peak rate of 61.8, reached in 1991, but 4% higher than in 2005.

The 2006 teenage abortion rate was 19.3 abortions per 1,000 women. This figure was 56% lower than its peak in 1988, but 1% higher than the 2005 rate.

From 1986 to 2006, the proportion of teenage pregnancies ending in abortion declined almost one-third, from 46% to 32% of pregnancies among 15–19-year-olds.

The data suggest that teen pregnancy is not a matter of sex education, but rather a lifestyle choice. In that sense, it does reflect the abject failure of abstinence only education. Abstinence only education has had no impact on rates of teen sexual activity, and now rates of both unintended and intended teen pregnancy are rising once again.

But fact based sex education does not appear to be the answer, either. Teens are choosing to get pregnant and choosing to carry pregnancies to term, putting in doubt one of the fundamental assumptions of fact based sex education, that teens who know more will take more precautions to avoid pregnancy.

If we intend to decrease the rate of teen pregnancy, the answer will not lie in either type of sex education alone.

Inexcusable medical errors


The Sunday edition of The New York Times featured a disturbing expose of serious medical errors associated with the newest forms of high tech radiation treatment,Radiation Offers New Cures, and Ways to Do Harm. The piece is an example of excellent medical journalism, compelling stories of two individuals who sustained truly horrifying injuries as the result of treatment errors framed a detailed investigation of similar errors that have occurred in New York State.

One of the most notable features of the medical errors highlighted by the article received only short shrift, however. That is unfortunate because it is an increasing source of medical error and is rarely included in public discussion of medical errors. Of the 1264 specific mistakes identified in the article, only a small proportion were made by doctors. The vast majority of errors were made by other people: physicists and programmers who ran the machines, ancillary medical professionals who positioned the patients during actual treatment, and support staff who brought the wrong patients for treatment.

Medical errors are a very serious problem and we should be engaged in an all out effort to reduce them to zero if possible. When people think about medical errors, they tend to imagine them as physician errors that could be corrected by greater diligence. Yet many medical errors are cause by people other than doctors, including people who are not medical professionals. These errors fall into three broad categories: errors introduced by complex monitoring and treatment machinery, errors caused by ancillary medical personnel, and clerical errors.

Consider the errors attributable to machinery. Extraordinarily complex machinery is involved in many aspects of medical care. In this case, the injuries and deaths were caused by a highly specialized and sophisticated form of radiation delivery, a linear accelerator with a multi-leaf collimator. The article explains:

… [A] linear accelerator with 120 computer-controlled metal leaves, called a multileaf collimator, … could more precisely shape and modulate the radiation beam. This treatment is called Intensity Modulated Radiation Therapy, or I.M.R.T. The unit St. Vincent’s had was made by Varian Medical Systems, a leading supplier of radiation equipment.

“The technique is so precise, we can treat areas that would have been considered much too risky before I.M.R.T., too close to important critical structures,” Dr. Anthony M. Berson, St. Vincent’s chief radiation oncologist, said in a 2001 news release.

Sophisticated machinery is run by computers and computers must be programmed. The case of Scott Jerome-Parks who was severely injured by excess radiation and subsequently died illustrates how serious errors can be made:

Tasked with carrying out [the treatment] plan was Nina Kalach, a medical physicist. In the world of radiotherapy, medical physicists play a vital role in patient safety — checking the calibration of machines, ensuring that the computer delivers the correct dose to the proper location, as well as assuming other safety tasks…

On the morning of March 14, Ms. Kalach revised Mr. Jerome-Parks’s treatment plan using Varian software. Then, with the patient waiting in the wings, a problem arose, state records show.

Shortly after 11 a.m., as Ms. Kalach was trying to save her work, the computer began seizing up, displaying an error message. The hospital would later say that similar system crashes “are not uncommon with the Varian software, and these issues have been communicated to Varian on numerous occasions.”

An error message asked Ms. Kalach if she wanted to save her changes before the program aborted. She answered yes.

Ms. Kalach did not know that the computer had not saved the treatment instructions that she had programmed. As a result, Mr. Jerome-Parks received a massive overdose of radiation:

The investigation into what happened to Mr. Jerome-Parks quickly turned to the Varian software that powered the linear accelerator…

When the computer kept crashing, Ms. Kalach, the medical physicist, did not realize that her instructions for the collimator had not been saved, state records show. She proceeded as though the problem had been fixed.

“We were just stunned that a company could make technology that could administer that amount of radiation — that extreme amount of radiation — without some fail-safe mechanism,” said Ms. Weir-Bryan, Ms. Jerome-Parks’s friend from Toronto. “It’s always something we keep harkening back to: How could this happen? What accountability do these companies have to create something safe?”

The software malfunction was one among many similar highly technical errors. Indeed more than half of the identified medical errors were related to programming the linear accelerator. Yet at the other end of the spectrum of sophistication, there were disturbingly large numbers of errors as well. In 174 instances, the wrong location was treated or even the wrong patient was treated. In 66 instances, staffing shortages or miscommunications resulted in treatment errors.

In total, at least 621 patients were harmed by medical errors, but ultimately only 6% of the errors were attributable to the physicians caring for the patients. The New York Times article on radiation treatment errors sounds an alarm not merely about a specific, highly technical form of treatment. It also raises serious questions about errors caused by ancillary medical personnel and even support staff. Such errors are inexcusable, and will require a different approach than conventional medical errors, an approach we must start working on immediately.

Guilty, guilty, guilty!

Mike Adams, the editor of Natural News.com, is having a bad week. He got caught stuffing the ballot box for a health Shorty Award and was disqualified. Skeptics were among those who pointed out that up to 20% of his “votes” had come from new Twitter accounts created expressly to vote for him. So now he’s lashing out at skeptics, and I am proud to report that I have been included in his diatribe.

Adams’ post, What ‘skeptics’ really believe about vaccines, medicine, consciousness and the universe, is inadvertently hilarious. For your Sunday delectation (and for your laugh of the week), let me share his accusations and proudly proclaim my guilt.
Adams begins:

… Briefly stated, “skeptics” are in favor of vaccines, mammograms, pharmaceuticals and chemotherapy. They are opponents of nutritional supplements, herbal medicine, chiropractic care, massage therapy, energy medicine, homeopathy, prayer and therapeutic touch.

Yup, that’s me. I oppose the quackery of supplements, herbal medicine, etc. etc.

I thought it would be interesting to find out exactly what “skeptics” actually believe, so I did a little research and pulled this information from various “skeptic” websites. What I found will make you crack up laughing so hard that your abs will be sore for a week. Take a look…

Skeptics believe that pregnancy is a disease and childbirth is a medical crisis. (They are opponents of natural childbirth.)

Now we know he is talking about me, although he is a little confused. I don’t claim that pregnancy is a disease, merely that childbirth is inherently dangerous.

What else do I and my fellow skeptics supposedly believe?

Skeptics believe that fluoride chemicals derived from the scrubbers of coal-fired power plants are really good for human health. They’re so good, in fact, that they should be dumped into the water supply so that everyone is forced to drink those chemicals, regardless of their current level of exposure to fluoride from other sources.

Guilty! I support fluoridation of the water supply to prevent dental disease.

Skeptics believe that DEAD foods have exactly the same nutritional properties as LIVING foods (hilarious!).

Guilty! I believe that the vitamins, minerals, etc in food are neither alive nor dead.

Skeptics believe that water has no role in human health other than basic hydration. Water is inert, they say, and the water your toilet is identical to water from a natural spring (assuming the chemical composition is the same, anyway).

Guilty again!

Skeptics believe that the moon has no influence over life on Earth. Farming in sync with moon cycles is just superstition, they say. (So why are the cycles of life for insects, animals and humans tied to the moon, then?)

Skeptics believe that the SUN has no role in human health other than to cause skin cancer. They completely deny any healing abilities of light…

Skeptics do not believe in intuition. They believe that mothers cannot “feel” the emotions of their infants at a distance. They write off all such “psychic” events as mere coincidence.

Guilty, guilty, guilty!

Here’s my absolute favorite:

Skeptics aren’t skeptical about the demolition-style collapse of the World Trade Center 7 building on September 11, 2001 — a building that was never hit by airplanes. This beautifully-orchestrated collapse of a hardened structure could only have been accomplished with precision explosives… Astonishingly, “skeptics” have little understanding of the laws of physics. Concrete-and-steel buildings don’t magically collapse in a perfect vertical demolition just because of a fire on one floor…

With that Mike, I think you have demonstrate definitively that you are a nut, and that no one should take you seriously. You’ve written far more, but I won’t waste my readers’ time by refuting you point by point. I think they already get the idea. However, I will share the culmination of your rant:

I hope it’s fairly obvious to you by now that skeptics are the most misinformed people on the planet. (emphasis in original)

They are the easiest people to fool. They’re the easiest to hypnotize, too, because they lack independent thinking skills…

Skeptics don’t believe in God or any sort of spiritualism, either. They are almost all athiests. They don’t believe in a higher power of any kind: No God, no spirit, no angels, no guides, no creative force in the universe… nada. They think the universe is a cold, empty, lonely, stupid place full of soulless, mindless, zombie biological bodies who have no free will and no consciousness.

Gee, no wonder these skeptics are so misguided. They have the most pessimistic view possible. No wonder they seek to destroy themselves with chemicals — they don’t even think they’re alive to begin with! Skeptics are bent on self destruction. And they believe that when you die, the lights just go out and you cease to exist. Nothing happens after that. You’re just a mindless biological robot whose life has no meaning, no purpose, no higher self.

This is exactly what the skeptics believe. They’ll even tell you so themselves!

That’s right, Mike. If you define skeptic as someone who believes that fluoridation prevents cavities, chemicals are neither alive nor dead, water is inert, and that the World Trade Center really was hit by planes, then I’m guilty … and proud of it!

New Cochrane Review confirms that there is no benefit to eating in labor

A new Cochrane Review released yesterday confirms that there is no benefit to eating or drinking in labor. According to the authors of the paper, Restricting oral fluid and food intake during labour:

We identified five studies (3130 women). All studies looked at women in active labour and at low risk of potentially requiring a general anaesthetic. One study looked at complete restriction versus giving women the freedom to eat and drink at will; two studies looked at water only versus giving women specific fluids and foods and two studies looked at water only versus giving women carbohydrate
drinks.

When comparing any restriction of fluids and food versus women given some nutrition in labour, the meta-analysis was dominated by one study undertaken in a highly medicalised environment. There were no statistically significant differences identified in: caesarean section (average risk ratio (RR) 0.89, 95% confidence interval (CI) 0.63 to 1.25, five studies, 3103 women), operative vaginal births (average RR 0.98, 95% CI 0.88 to 1.10, five studies, 3103 women) and Apgar scores less than seven at five minutes (average RR 1.43, 95% CI 0.77 to 2.68, three studies, 2574 infants), nor in any of the other outcomes assessed.

Standard obstetric practice has been to restrict intake in labor to clear liquids or only water. That’s because pregnant women who undergo general anesthesia are particularly vulnerable to vomiting and aspirating vomit into their lungs. The authors explain these restrictions:

Most are based on historical, but important concerns, related to the risks of gastric content regurgitation and aspiration into the lungs during general anaesthesia, a risk first identified by Mendelson in the 1940s. The incidence is very rare with modern anaesthetic techniques and the use of regional anaesthesia rather then general anaesthesia. However, the syndrome is potentially fatal.

The authors also claimed that they found no risks of eating in labor, but the review is far to small to detect the risk of aspiration since very few if any women in the study underwent general anesthesia. So the claim that eating in labor has no risks has not really been addressed by this study.

Where does that leave us? There is certainly no evidence that eating in labor has any benefits. The risks are quite small since very few women undergo general anesthesia for C-section. The authors of this review suggest that the decision should be left up to women themselves.

The new Australian homebirth study shows what???


Andrew Pesce, president of the Australian Medical Association, has emphasized that his opposition to homebirth is based on the scientific evidence. Indeed, he promised in late November:

There is an article to be published soon in the Medical Journal of Australia which is a 15-year review of 1150 home births and it shows there is a seven times higher risk of a baby dying during home birth than a hospital birth … We feel that if we’re not listened to then the safety of the maternity system can be fundamentally compromised.

The paper, Planned home and hospital births in South Australia, 1991–2006: differences in outcomes by Kennare et al., was published this week and if Dr. Pesce is hanging his case against homebirth on this paper, he better head back to the drawing board. The paper does not show that homebirth increases the risk of neonatal death. In fact, the paper is so poorly done that it doesn’t show much of anything.

Let’s take a moment to consider what a well designed study would look like. When comparing homebirth to hospital birth:

The groups should be created by “intention to treat.” In other words, it does not matter where the patient ultimately delivered. The most important criterion is where the patient intended to deliver at the start of labor.

Like must be compared to like. The hospital group should contain only low risk women, since the homebirth group presumably contains only low risk women.

Unfortunately, the Kennare paper fails to meet either requirement, and a few more besides.

The authors explain how they created the groups for comparison:

Of 300 011 births during the period 1991–2006 (consisting of all livebirths as well as stillbirths of at least 400 g birthweight or 20 weeks’ gestation), 461 that were terminations of pregnancy and 1217 with no antenatal care were excluded. The remaining 298 333 were divided into 297 192 planned hospital births and 1141 (0.38%) planned home births. The latter were defined as any birth that, at the time of antenatal booking, was intended to occur at home. Of these, 792 (69.4%) did occur at home and 349 occurred in hospital after transfer.

Right away there is a problem. The groups were not defined by intention to treat at the start of labor, but rather by intention to treat at the start of prenatal care. So any woman who developed complications during pregnancy and was appropriately transferred to hospital care long before labor began was included in the homebirth group.

Moreover, instead of comparing the homebirth group to comparable risk women who gave birth in the hospital, the authors compared the homebirth group to all women who gave birth in the hospital including premature births, and those with serious complications.

What did they find?

The rate of neonatal death in the homebirth group was 7.9 per 1000 births, compared with 8.2 per 1000 births for planned hospital births. In other words, there was NO difference between the planned homebirth group and the planned hospital group. Oops! That wasn’t what the authors were hoping to find.

So the authors take a different tack:

One third of deaths (3 of 9) among planned home births were due to intrapartum asphyxia compared with 3.6% among planned hospital births. Both intrapartum deaths and deaths attributed to intrapartum asphyxia were considerably more frequent in the home birth group than in the hospital birth group.

And proudly conclude:

In our study of births and perinatal deaths in SA during the period 1991–2006, planned home births had a perinatal mortality rate similar to that of planned hospital births, but had a sevenfold higher risk of intrapartum death and a 27-fold higher risk of death from intrapartum asphyxia.

To which I say: So what? Dead is dead. It it hardly a ringing endorsement of hospital birth to claim that all the dead babies died AFTER birth instead of during birth.

So the study does not show that homebirth increases the risk of neonatal death. What does it show? In my judgment, it doesn’t show anything because it is poorly done. The authors should go back and reanalyze their data. First they should create the groups by intention to treat at the start of labor. Second, they should remove high risk women from the hospital group. Only then is there a chance of obtaining valid, useful results.

If the intention of the authors was to bolster the case against homebirth, it has certainly back fired. Instead, they’ve given Australian homebirth advocates a gift. Homebirth advocates be able to point to this study as showing that homebirth doesn’t increase the risk of neonatal death. Perhaps more importantly, though, homebirth advocates will be able to point to this study as evidence that opponents of homebirth disingenuously sliced and diced the data to make hospital birth look good on at least one criterion. And that criterion, the fact that the homebirth babies died during labor instead of after labor, is absurd.