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Biomedical subjects

E Johnson

Publications and source records attributed to E Johnson.

431 records · Page 24Linked to original sources
PubMedDate not supplied

The course of peripheral vascular disease in non-insulin-dependent diabetes.

The present report is an analysis of the course of peripheral vascular disease (PVD) in 619 patients with non-insulin-dependent diabetes (NIDDM) recruited within 1 yr of diagnosis and followed quarterly for up to 14 yr (X = 10.5 yr). At 13 yr duration, the actuarially determined cumulative risks for intermittent claudication (IC), nonpalpable dorsalis pedis pulse (NPUL), and arterial calcification (CALC) were, respectively, 37.9%, 34.5%, and 60.9% for men and 24.3%, 37.6%, and 32.2% for women. Major amputations (AMP) occurred in only 1.3% of the patients, equivalent to approximately one case per 1000 patients per year. The corresponding incidences of IC, NPUL, and CALC were, respectively, 29, 27, and 47 per 1000 men and 19, 27, and 25 per 1000 women per year. CALC and NPUL were strongly related to mortality. Baseline risk factors with probability levels that suggest a relationship to PVD were, in women, age versus CALC (P less than 0.01), age versus NPUL (P less than 0.05), weight versus NPUL (P less than 0.05), systolic BP versus CALC (P less than 0.01), summed glucose tolerance test versus CALC (P less than 0.01), and triglyceride level versus CALC (P less than 0.05). In men, the only significant risk factors were diminished vibration perception, which was related to NPUL (P less than 0.05), and the serum triglyceride level, which was related to IC (P less than 0.05). In patients who are carefully followed prospectively, IC is far more common, but AMP is far less common than has been generally appreciated. Further studies are needed to clarify the roles of the diverse risk factors that are possibly related.

Amputation, Surgical↗
PubMedDate not supplied

Continuing education in nursing: a 10-year retrospective study of CE offerings presented by the Kentucky Nurses Association.

BACKGROUND: The purpose of this retrospective study was to evaluate continuing education (CE) offerings presented by the Kentucky Nurses Association during a 10-year period. METHOD: Data were collected and analyzed from 37 CE offerings (N = 474 respondents). RESULTS: Findings revealed that the majority of the respondents reported that the CE offerings were useful, stimulated them to seek further information, and resulted in acquisition of significant knowledge or skills for nursing education or practice. However, fewer than half of the respondents reported they were able to implement changes in nursing education or practice as a result of the CE offerings. CONCLUSION: Findings supported the usefulness of CE in nursing education and practice and the need for further research evaluating CE and the correlation between CE and nursing education and practice.

Education, Nursing, Continuing↗
PubMedDate not supplied

TB rears its ugly head.

Explore the source record for details and available documents.

Centers for Disease Control and Prevention, U.S.↗
PubMedDate not supplied

Laparoscopic management of ovarian dermoid cysts: ten years' experience.

OBJECTIVE: To determine the safety and efficacy of laparoscopic management of ovarian dermoid cysts based upon our ten years' experience. METHODS: Charts of 81 patients who underwent laparoscopic removal of dermoid cysts since March 1988 at Stanford University Medical Center or the Center for Special Pelvic Surgery in Atlanta were reviewed retrospectively. RESULTS: Ninety-three dermoid cysts with a mean diameter of 4.5 cm were removed in 81 patients. Operative techniques used were cystectomy for 70 cysts, salpingooophorectomy for 14, and 9 salpingo-oophorectomy with hysterectomy. Fifty-three cysts were treated via enucleation followed by cystectomy or salpingo-oophorectomy and removal through a trocar sleeve. Twenty-two were treated via enucleation and removal within an impermeable sack. Nine were treated via enucleation and removal by posterior colpotomy. Nine were removed via colpotomy following hysterectomy. We had a total of 39 spillages. Spillage rates varied with removal method: 32 (62%) for trocar removal without an endobag, 3 (13.6%) for removal within an endobag, and 4 (40%) with colpotomy removal. No spillage occurred for the nine patients who had a colpotomy done for hysterectomy. Mean hospital stay after surgery was 0.98 days, and there were no intraoperative complications. In one case, there was a postoperative complication of an incisional infection in the umbilicus. CONCLUSION: Including this and 13 other studies, review of the literature reveals a 0.2% incidence of chemical peritonitis following laparoscopic removal of dermoid cysts. Thus, we conclude that laparoscopic management of dermoid cysts is a safe and beneficial method in selected patients when performed by an experienced laparoscopic surgeon.

Adolescent↗
PubMedDate not supplied

Bioavailable organochlorine pesticides in a semi-arid region of eastern Oregon, USA, as determined by gas chromatography with electron-capture detection.

A group of dissolved-bioavailable organochlorine (OC) pesticides and inorganic anions in water and total OC pesticides in sediments were measured in the Malheur Watershed, a semi-arid region in the western United States, over a 2-year period. OC pesticide levels were compared with those from a 1990 study of the lower section of the river, the most recent data available. After calculating the dissolved fraction from the 1990, study it seems that DDD and dieldrin levels have decreased in the water by 50-70%, while DDE and DDT have changed little. Although banned nearly 30 years ago, DDT is still persistent throughout the Malheur River basin/watershed because it was found in all water samples tested. All of the OC pesticides tested during the 2-year study are well below the criterion continuous concentration for aquatic community exposure as defined by the U.S. Environmental Protection Agency (EPA). OC pesticides appear to be decreasing, however, at lower Ontario there remains a human health risk (EPA Human Health Risk Water Quality Criteria) for DDT, because this criteria includes daily consumption of water and fish from the river. Overall, although the upper forest watershed sites have lower OC pesticide concentrations, they represent an important contribution to the total DDT load to this watershed, a source not previously acknowledged. The large increase in DDT and sigmaDDT between the Ontario sites may indicate a possible historical point source of contamination or historical preferential deposition of contamination. Normalized sediment (sigmaDDT/organic carbon) strongly correlates with dissolved water sigmaDDT.

Biological Availability↗