Mammography for symptomless women--not so wise?

For over 20 years, medical authorities have urged asymptomatic peri/postmenopausal women to undergo frequent mammography. In a recent paper, the authors tested whether early detection reduced the incidence of previously undetected late-stage cancer and saved lives. They compared data from 1976-1978 (pre- mammography) to 2006-2008 US data. Annualized age-adjusted cancer data per 100,000 women ≥ 40 years old showed that early-stage cancer detection cases increased, from 105 to 178 cases of localized disease and from seven to 56 cases of ductal carcinoma in situ; regional invasive late-stage cancer diminished slightly, from 85 to 78 cases; distant late-stage cancer showed no decline, with 17 cases in both 1976-1978 and 2006-2008; breast cancer mortality declined by 20 per 100,000 women, from 71 to 51 cases. Since mammogram detection produced no decline in late-stage distant cancer presentations (with high mortality rates), and an extremely modest reduction in invasive regional disease (with low mortality rates), improved treatment, not early detection, is the likely engine for the lives saved. Overdiagnosis--estimated at about 70,000 US women per year--inflicts terror, and triggers biopsies followed by unnecessary medical treatments that are painful, potentially harmful, may impair immune responsiveness and increase the risks for other cancers. Given the availability of annual clinical exams, routine mammography screening should now be seriously questioned.

Proliferative kidney disease (PKD) of rainbow trout: temperature- and time-related changes of Tetracapsuloides bryosalmonae DNA in the kidney.

Proliferative kidney disease (PKD) of salmonids, caused by Tetracapsuloides bryosalmonae, can lead to high mortalities at elevated water temperature. We evaluated the hypothesis that this mortality is caused by increasing parasite intensity. T. bryosalmonae-infected rainbow trout (Oncorhynchus mykiss) were reared at different water temperatures and changes in parasite concentrations in the kidney were compared to cumulative mortalities. Results of parasite quantification by a newly developed real-time PCR agreed with the number of parasites detected by immunohistochemistry, except for very low or very high parasite loads because of heterogenous distribution of the parasites in the kidney. Two experiments were performed, where fish were exposed to temperatures of 12, 14, 16, 18 or 19 degrees C after an initial exposure to an infectious environment at 12-16 degrees C resulting in 100% prevalence of infected fish after 5 to 14 days of exposure. While mortalities differed significantly between all investigated water temperatures, significant differences in final parasite loads were only found between fish kept at 12 degrees C and all other groups. Differences in parasite load between fish kept at 14 degrees C to 19 degrees C were not significant. These findings provide evidence that there is no direct link between parasite intensity and fish mortality.

[Incompatibility reactions in the intensive care unit. Five years after the implementation of a simple "colour code system"]. / Inkompatibilitätsreaktionen auf der Intensivstation. Fünf Jahre nach Einführung einer einfachen Farbkodierung.

In intensive care units (ICU) most of the drugs have to be administered by y-piece infusions or admixtures. Drug stability and compatibility are critical elements in the accurate and appropriate delivery of drug therapies to patients. Five years after the implementation of a simple "colour code system" in an attempt to minimize the number of incompatibilities, the situation has been re-examined. The clinical pharmacist collected 78 different medication regimes and the compatibility and incompatibilities were evaluated based on the available literature. Before initiating the "colour code system" in the ICU, 15% of the administered drugs were incompatible and afterwards the number decreased to 2%. This rate could be kept at 2%, even 5 years after the implementation of the system,without any further intervention. As a result of teamwork between nurses, doctors and clinical pharmacy a simple "colour system" was established to minimize incidences of drug incompatibility in the ICU. The system is highly accepted because the degree of uncertainty has been considerably reduced.

Transdermal testosterone treatment in women with impaired sexual function after oophorectomy.

BACKGROUND: The ovaries provide approximately half the circulating testosterone in premenopausal women. After bilateral oophorectomy, many women report impaired sexual functioning despite estrogen replacement. We evaluated the effects of transdermal testosterone in women who had impaired sexual function after surgically induced menopause. METHODS: Seventy-five women, 31 to 56 years old, who had undergone oophorectomy and hysterectomy received conjugated equine estrogens (at least 0.625 mg per day orally) and, in random order, placebo, 150 microg of testosterone, and 300 microg of testosterone per day transdermally for 12 weeks each. Outcome measures included scores on the Brief Index of Sexual Functioning for Women, the Psychological General Well-Being Index, and a sexual-function diary completed over the telephone. RESULTS: The mean (+/-SD) serum free testosterone concentration increased from 1.2+/-0.8 pg per milliliter (4.2+/-2.8 pmol per liter) during placebo treatment to 3.9+/-2.4 pg per milliliter (13.5+/-8.3 pmol per liter) and 5.9+/-4.8 pg per milliliter (20.5+/-16.6 pmol per liter) during treatment with 150 and 300 microg of testosterone per day, respectively (normal range, 1.3 to 6.8 pg per milliliter [4.5 to 23.6 pmol per liter]). Despite an appreciable placebo response, the higher testosterone dose resulted in further increases in scores for frequency of sexual activity and pleasure-orgasm in the Brief index of Sexual Functioning for Women (P=0.03 for both comparisons with placebo). At the higher dose the percentages of women who had sexual fantasies, masturbated, or engaged in sexual intercourse at least once a week increased two to three times from base line. The positive-well-being, depressed-mood, and composite scores of the Psychological General Well-Being Index also improved at the higher dose (P=0.04, P=0.03, and P=0.04, respectively, for the comparison with placebo), but the scores on the telephone-based diary did not increase significantly. CONCLUSIONS: In women who have undergone oophorectomy and hysterectomy, transdermal testosterone improves sexual function and psychological well-being.