‘Cancer’ or ‘Weird Cells’: Which Sounds Deadlier?For information about my practice, please click here.
By GINA KOLATA
My friend’s mother got terrifying news after she had a mammogram. She had Stage 0 breast cancer. Cancer. That dreadful word. Of course she had to have surgery to get it out of her breast, followed by hormonal therapy.
Or did she?
Though it is impossible to say whether the treatment was necessary in this case, one thing is growing increasingly clear to many researchers: The word “cancer” is out of date, and all too often it can be unnecessarily frightening.
“Cancer” is used, these experts say, for far too many conditions that are very different in their prognoses — from “Stage 0 breast cancer,” which may be harmless if left alone, to glioblastomas, brain tumors with a dismal prognosis no matter what treatment is tried...
Now, some medical experts have recommended getting rid of the word “cancer” altogether for certain conditions that may or may not be potentially fatal...
Many medical investigators now speak in terms of the probability that a tumor is deadly. And they talk of a newly recognized risk of cancer screening — overdiagnosis. Screening can find what are actually harmless, if abnormal-looking, clusters of cells.
But since it is not known for sure whether they will develop into fatal cancers, doctors tend to treat them with the same methods that they use to treat clearly invasive cancers. Screening is finding “cancers” that did not need to be found. So maybe “cancer” is not always the right word for them.
That happened recently with Stage 0 breast cancer, also known as ductal carcinoma in situ, or D.C.I.S. It is a small accumulation of abnormal-looking cells inside the milk ducts of the breast. There’s no lump, nothing to be felt. In fact, Stage 0 was almost never detected before the advent of mammography screening.
Now, with widespread screening, this particular diagnosis accounts for about 20 percent of all breast cancers. That is, if it actually is cancer.
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Showing posts with label cancer. Show all posts
Showing posts with label cancer. Show all posts
Tuesday, November 22, 2011
What's in a name? Time to rename "cancer?"
I was speaking to one of my Medical School classmates at my recent reunion about this very topic. (I went to Tulane Medical School and was speaking to Dr. Oliver Sartor, a specialist and expert in Prostate Cancer.) We were discussing this because his area of expertise is prostate cancer, and there have been such dramatic and controversial developments in that field discussed here and here. that part of the problem is the terminology. Some cancers are quite indolent, most prostate cancers are for example. It would help patients make treatment decisions if those more benign cancers were not described as cancer since that term is so loaded. Often once patients get that diagnosis their reaction is to "get rid of it." But in the case of prostate cancer, the cure can be worse than the disease.
Friday, November 18, 2011
Acupuncture for Xerostomia (Dry Mouth) in Cancer Patients
Much of the literature I've seen on acupuncture for xerostomia has been on treating the xerostomia once is develops. This sounds like a practical way to prevent, namely give acupuncture at the time of the radiation.
Cancer. 2011 Nov 9. doi: 10.1002/cncr.26550.For information about my practice, please click here.
Randomized controlled trial of acupuncture for prevention of radiation-induced xerostomia among patients with nasopharyngeal carcinoma.
Meng Z, Garcia MK, Hu C, Chiang J, Chambers M, Rosenthal DI, Peng H, Zhang Y, Zhao Q, Zhao G, Liu L, Spelman A, Palmer JL, Wei Q, Cohen L.
Department of Integrative Oncology, Fudan University Shanghai Cancer Center, Shanghai, China.
Abstract
BACKGROUND:
Xerostomia (dry mouth) after head/neck radiation is a common problem among cancer patients, and available treatments are of little benefit. The objective of this trial was to determine whether acupuncture can prevent xerostomia among head/neck patients undergoing radiotherapy.
METHODS:
A randomized, controlled trial among patients with nasopharyngeal carcinoma was conducted comparing acupuncture to standard care. Participants were treated at Fudan University Shanghai Cancer Center, Shanghai, China. Forty patients were randomized to acupuncture treatment and 46 to standard care. Patients were treated 3×/wk on the same days they received radiotherapy. Subjective measures included the Xerostomia Questionnaire and MD Anderson Symptom Inventory-Head and Neck (MDASI-HN). Objective measures were unstimulated and stimulated whole salivary flow rates. Patients were followed for 6 months after the end of radiotherapy.
RESULTS:
Xerostomia Questionnaire scores for acupuncture were statistically significantly lower than for controls starting in week 3 through the 6 months (P = .003 at week3, all other P < .0001), with clinically significant differences as follows: week 11, relative risk (RR) 0.63 (95% confidence interval [CI], 0.45-0.87); 6 months, RR 0.38 (95% CI, 0.19-0.76). Similar findings were seen for MDASI-HN scores. Group differences emerged as early as 3 weeks into treatment for saliva (unstimulated whole salivary flow rate, P = .0004), with greater saliva flow in the acupuncture group at week 7 (unstimulated whole salivary flow rate, P < .0001; stimulated whole salivary flow rate, P = .002) and 11 (unstimulated whole salivary flow rate, P < .02; stimulated whole salivary flow rate, P < .03) and at 6 months (stimulated whole salivary flow rate, P < .003).
Friday, July 8, 2011
Genomic Cancer Testing Falls Apart
From today's NYTimes, an article about a technique of using DNA testing to tailor cancer treatment is debunked with law suits ensuing. I flag this article because it falls into the Gold Rush treatment mentality that so pervades the U.S. health care industry. The only way to really make money off of healthcare in our system is to provide treatment once the illness is manifest. (Or to create a condition and then provide treatment for it, i.e. Viagra) There is no money to be made in prevention, so prevention takes a back seat. The only institution with enough heft to counter corporate clout is the government, but with the government itself under attack, and the research and regulatory agencies' budgets being slashed, there's not too much policing going on. So efforts to discover the actual carcinogens involved in the increased cancer rates are meager. The causes of autism are slow to be discovered, and unlikely to be acknowledged if, indeed, a blockbuster drug is implicated. And so it goes. This particular technology also fits into the category of "believing in treatments that don't work." I excerpted parts and highlighted others. (For more info about my practice, please click here.)
July 7, 2011
How Bright Promise in Cancer Testing Fell Apart
By GINA KOLATA
When Juliet Jacobs found out she had lung cancer, she was terrified, but realized that her hope lay in getting the best treatment medicine could offer. So she got a second opinion, then a third. In February of 2010, she ended up at Duke University, where she entered a research study whose promise seemed stunning.
Doctors would assess her tumor cells, looking for gene patterns that would determine which drugs would best attack her particular cancer. She would not waste precious time with ineffective drugs or trial-and-error treatment. The Duke program — considered a breakthrough at the time — was the first fruit of the new genomics, a way of letting a cancer cell’s own genes reveal the cancer’s weaknesses.
But the research at Duke turned out to be wrong. Its gene-based tests proved worthless, and the research behind them was discredited. Ms. Jacobs died a few months after treatment, and her husband and other patients’ relatives are suing Duke.
The episode is a stark illustration of serious problems in a field in which the medical community has placed great hope: using patterns from large groups of genes or other molecules to improve the detection and treatment of cancer.Companies have been formed and products have been introduced that claim to use genetics in this w ay, but assertions have turned out to be unfounded. While researchers agree there is great promise in this science, it has yet to yield many reliable methods for diagnosing cancer or identifying the best treatment.
Instead, as patients and their doctors try to make critical decisions about serious illnesses, they may be getting worthless information that is based on bad science. The scientific world is concerned enough that two prominent groups, the National Cancer Institute and the Institute of Medicine, have begun examining the Duke case; they hope to find new ways to evaluate claims based on emerging and complex analyses of patterns of genes and other molecules.
So far, the Food and Drug Administration “has generally not enforced” its regulation of tests created by individual labs because, until recently, such tests were relatively simple and relied heavily on the expertise of a particular doctor, said Erica Jefferson, a spokeswoman for the agency. But now, with labs offering more complex tests on a large scale, the F.D.A. is taking a new look at enforcement.
Dr. Scott Ramsey, director of cancer outcomes research at the Fred Hutchison Cancer Center in Seattle, says there is already “a mini-gold rush” of companies trying to market tests based on the new techniques, at a time when good science has not caught up with the financial push. “That’s the scariest part of all,” Dr. Ramsey said.
And the Duke researchers continued to publish papers on their genomic signatures in prestigious journals. Meanwhile, they started three trials using the work to decide which drugs to give patients.
Dr. Baggerly and Dr. Coombes tried to sound an alarm. They got the attention of the National Cancer Institute, whose own investigators wanted to use the Duke system in a clinical trial but were dissuaded by the criticisms. Finally, they published their analysis in The Annals of Applied Statistics, a journal that medical scientists rarely read.
The situation finally grabbed the cancer world’s attention last July, not because of the efforts of Dr. Baggerly and Dr. Coombes, but because a trade publication, The Cancer Letter, reported that the lead researcher, Dr. Potti, had falsified parts of his résumé. He claimed, among other things, that he had been a Rhodes scholar.
“It took that to make people sit up and take notice,” said Dr. Steven Goodman, professor of oncology, pediatrics, epidemiology and biostatistics at Johns Hopkins University.
In the end, four gene signature papers were retracted. Duke shut down three trials using the results. Dr. Potti resigned from Duke. He declined to be interviewed for this article. His collaborator and mentor, Dr. Nevins, no longer directs one of Duke’s genomics centers.
The cancer world is reeling.
The Duke researchers had even set up a company — now disbanded — and planned to sell their test to determine cancer treatments. Duke cancer patients and their families, including Mrs. Jacobs’s husband, Walter Jacobs, say they feel angry and betrayed. And medical researchers see the story as a call to action. With such huge data sets and complicated analyses, researchers can no longer trust their hunches that a result does — or does not — make sense.
“Our intuition is pretty darn poor,” Dr. Baggerly said.
Wednesday, October 13, 2010
Increased Yin-Deficient Symptoms and Aggravated Autonomic Nervous System Function in Patients with Metastatic Cancer.
This is a truly fascinating study. It is a veritable "East Meets West" extravaganza. They are looking at both symptoms of Yin Deficiency and Autonomic dysfunction as measured by Heart Rate Variability, and metastastic disease. Yin deficiency is a part of some very prominent conditions in Traditional Chinese Medicine for example, Tuberculosis, High Blood Pressure, Menopausal Hot Flashes. As an anecdotal example, one of my current patients being treated for hypertension had remarkable and sustained lowering of both systolic and diastolic blood pressure with the addition of a powerful Yin tonic. To try to correlate the symptoms of Yin Deficiency with metastasis, not only broadens the reach of TCM diagnosis, but adds to our understanding of the yin yang imbalance. What drew my attention to it was the attention paid to Autonomic Dysfunction and it is food for thought that there was a definite correlation with Yin Deficiency and autonomic imbalance. It gives us one more lens to try to make sense of vexing conditions that be difficult to treat.
(To read more about acupuncture and my practice, please click here.)
Here are some excerpts of the abstract.
1. J Altern Complement Med. 2010 Sep 28.
Increased Yin-Deficient Symptoms and Aggravated Autonomic Nervous System Function in Patients with Metastatic Cancer.Lin SC, Chen MX.
1 Department of Nursing, Show Chwan Memorial Hospital , Changhua, Taiwan .
Abstract Objectives: The objectives of this study were to investigate the
differences in severity of yin-deficiency syndrome (YDS) and function of the
autonomic nervous system (ANS) between patients with cancer with metastasis and
those without metastasis. ...
Interventions: The severity of YDS in each subject was evaluated using a questionnaire containing 12 items about symptoms and signs related to YDS. The severity of each symptom or sign was rated on a 4-point scale. Outcome measures: The total score on the questionnaire represented the severity of YDS. ANS function in each subject was evaluated by measuring heart rate variability (HRV), including time and frequency domains. ...
Results: The patients with metastasis had significantly higher average total YDS score and heart rate compared with the patients without metastasis. In contrast, they had significantly lower HRV, including standard deviation of the 5-minute average R-R
interval, total power, very-low-frequency power, and low frequency (LF) power,but not high-frequency (HF) power and LF/HF ratio. Conclusions: The results of this study indicate that patients with metastatic cancer have more severe YDS and
impaired ANS function than those without metastasis.
(To read more about acupuncture and my practice, please click here.)
Here are some excerpts of the abstract.
1. J Altern Complement Med. 2010 Sep 28.
Increased Yin-Deficient Symptoms and Aggravated Autonomic Nervous System Function in Patients with Metastatic Cancer.Lin SC, Chen MX.
1 Department of Nursing, Show Chwan Memorial Hospital , Changhua, Taiwan .
Abstract Objectives: The objectives of this study were to investigate the
differences in severity of yin-deficiency syndrome (YDS) and function of the
autonomic nervous system (ANS) between patients with cancer with metastasis and
those without metastasis. ...
Interventions: The severity of YDS in each subject was evaluated using a questionnaire containing 12 items about symptoms and signs related to YDS. The severity of each symptom or sign was rated on a 4-point scale. Outcome measures: The total score on the questionnaire represented the severity of YDS. ANS function in each subject was evaluated by measuring heart rate variability (HRV), including time and frequency domains. ...
Results: The patients with metastasis had significantly higher average total YDS score and heart rate compared with the patients without metastasis. In contrast, they had significantly lower HRV, including standard deviation of the 5-minute average R-R
interval, total power, very-low-frequency power, and low frequency (LF) power,but not high-frequency (HF) power and LF/HF ratio. Conclusions: The results of this study indicate that patients with metastatic cancer have more severe YDS and
impaired ANS function than those without metastasis.
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