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Biomedical subjects

Gilbert Gleim

Publications and source records attributed to Gilbert Gleim.

4 recordsLinked to original sources

Problem-based learning of research skills.

PURPOSE: To determine whether a short-term, problem-based educational intervention leads to increased research activity among health care practitioners. SUBJECTS AND METHODS: Participant's success was evaluated as a composite of 2 outcomes. These were (1) reporting results for the project designed during the practicum and (2) conducting subsequent research activities. The study population included 36 clinical research outcomes projects developed by clinical practitioners, postgraduate trainees, and medical students during 6 separate practicums. All project teams received the same educational intervention, an "outcomes research practicum" that was divided into 4 primary learning modules administered over a 1 to 4 month period. Each module included a preparatory videotape lecture, supplemental readings, and a 90-minute interactive laboratory session during which faculty members worked with participants to develop answers to a series of predefined questions relating to the design of clinical outcomes research projects. Follow-up continued for a minimum of 12 months and a maximum of 36 months. RESULTS: Eighty-three percent of project teams completed all 4 practicum modules, and 69% completed one of the study outcomes (50% completed their research project and 47% completing a subsequent research activity). Practitioners were more likely to complete subsequent research activities, whereas trainees were more likely to complete their study project. DISCUSSION: This short-term, problem-based educational intervention was successful in increasing the collective research activities of participants. Further, more rigorous structured research is needed to determine the ultimate impact on practice change and patient outcomes.

Education, Medical, Continuing↗

A double-blind, dose-response study of losartan in hypertensive children.

BACKGROUND: The aim of this study was to determine the dose-response relationship for losartan, 2.5 to 100 mg, and to assess the safety and tolerability of losartan in hypertensive children 6 to 16 years of age. METHODS: This was a multicenter, randomized, double-blind, dose-response study. In Period 1, a total of 175 patients were stratified by weight (<50 kg and >/=50 kg) and randomized to one of three dose groups by stratum (low, 2.5/5.0 mg; middle, 25/50 mg; or high, 50/100 mg) for 3 weeks. The ratio of the three dose levels for both weight strata was 1:10:20. In Period 2, patients in each dose group were randomized to continue the same treatment or placebo washout for 2 additional weeks. RESULTS: In Period 1, sitting trough diastolic blood pressure (DBP) decreased in a dose-dependent manner (P < .0001). At week 3, changes in DBP from baseline in the low-, middle-, and high-dose groups were -6.0 mm Hg, -11.7 mm Hg, and -12.2 mm Hg, respectively. In Period 2, DBP increased significantly in patients who switched from middle- and high-dose losartan to placebo (mean increase 6.0 mm Hg, P = .003) relative to DBP in patients who remained on active treatment; however, these levels remained stable in those patients who switched from low-dose losartan to placebo (mean increase 1.1 mm Hg, P = .628). CONCLUSIONS: In hypertensive children 6 to 16 years of age, losartan given once daily reduced blood pressure in a dose-dependent fashion. A once-daily starting dose of losartan, 0.75 mg/kg (maximum 50 mg) effectively lowered DBP within 3 weeks. Losartan up to a dosage of 1.44 mg/kg (maximum 100 mg) once daily is generally well tolerated.

Adolescent↗

Use of losartan in diabetic patients in the primary care setting: review of the results in LIFE and RENAAL.

OBJECTIVE: To review outcomes of diabetic patients treated with losartan in two recent randomized, double-blind, clinical trials and compare outcomes to similar studies in diabetics. METHODS: The Reduction in ENdpoints with the Angiotensin II Antagonist Losartan (RENAAL) study recruited 1513 patients with type 2 diabetes and nephropathy. The Losartan Intervention For Endpoint reduction (LIFE) study recruited 9193 hypertensive patients with left ventricular hypertrophy (LVH) including 1195 with diabetes mellitus. The maximum losartan dose in both studies was 100 mg daily. All study patients could receive additional antihypertensive medications, excluding angiotensin converting enzyme inhibitors (ACEIs) and other angiotensin receptor blockers (ARBs), if blood pressures (BP) < 140/90 mmHg were not achieved. In RENAAL, the control group received placebo whereas in LIFE, controls received atenolol. BP reductions were comparable in the treatment and control groups of both studies. In RENAAL, the primary outcome was the composite of doubling of serum creatinine, end-stage renal disease, or death. In LIFE, the primary composite outcome was cardiovascular death and non-fatal myocardial infarction or stroke. RESULTS: In RENAAL, losartan reduced the primary composite end-point 16% (p = 0.02) and the incidence of end-stage renal disease (ESRD) 28% (p = 0.002). In LIFE, the primary composite endpoint among diabetics was reduced 24% (p = 0.03), cardiovascular mortality was reduced 37% (p = 0.03) and total mortality was reduced 39% (p = 0.002). DISCUSSION: In diabetic patients with nephropathy, losartan reduces progression to endstage renal disease. In hypertensive diabetic patients with LVH, losartan reduces cardiovascular morbidity and mortality and total mortality. Angiotensin receptor blockade with losartan appears to confer benefits beyond BP reduction in diabetic patients at high-risk for cardiovascular and renal events.

Aged↗