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Biomedical subjects

G Bonnet

Publications and source records attributed to G Bonnet.

6 recordsLinked to original sources
PubMed1991

A multicenter study of doxazosin in the treatment of essential hypertension in France.

This study was designed to assess the efficacy and tolerance of doxazosin in patients with mild, moderate, or severe essential hypertension in a general practice setting. Ninety-six adults of a mean age of 55 1/2 years took part in the 14-week study, consisting of a placebo phase (2 weeks), a dose-adjustment phase with doxazosin (8 weeks), and a maintenance phase (4 weeks). Doxazosin, at a final mean daily dose of 3.4 mg, produced a significant (p less than 0.05) reduction in blood pressure at all points of measurement during the study. The mean change in sitting blood pressure at the end of treatment was -15.4/-15.8 mm Hg. Of the 85 patients who could be categorized as a success or failure, 78 (92%) were considered a therapeutic success; 78 (89%) of the 88 efficacy-evaluable patients demonstrated an improvement in the severity category of their hypertension. Treatment with doxazosin produced a reduction in serum cholesterol (-3.1%) and triglyceride (-3.8%) levels, although these changes did not attain statistical significance. The calculated probability of developing coronary heart disease in 10 years (according to the Framingham equation) was significantly (p less than 0.001) reduced by 22%, from 16.7 chances per 100 (baseline) to 14.3 chances per 100 (final visit). Twenty-six patients (27.1%) reported side effects that were possibly related to treatment, the most prevalent of which were vertigo (7.3%) and headache (6.3%). In four (4.2%) patients the dose of doxazosin was reduced and two (2.1%) were withdrawn prematurely. The investigator's assessments of tolerance was reduced and two (2.1%) were considered to be excellent or good in 85 (88%) patients.

Antihypertensive Agents↗
PubMed1987

Evaluation of antihypertensive efficacy of lisinopril compared to metoprolol in moderate to severe hypertension.

A double-blind controlled, randomized, parallel, multicenter 12-week study was conducted to compare the antihypertensive efficacy of lisinopril with that of metoprolol in treatment of moderate to severe hypertension. Initially, 118 patients were recruited on lisinopril and 61 on metoprolol; and for the purpose of efficacy analysis at week 8, 115 patients on lisinopril and 60 on metoprolol were included. The doses of lisinopril or metoprolol were 40-80 mg/day and 100-200 mg/day, respectively. At week 4, the pretreatment diastolic blood pressure of 111 mm Hg was decreased to 97 mm Hg (p less than 0.01) with lisinopril: metoprolol decreased the diastolic blood pressure from 110 to 99 mm Hg (p less than 0.01). Similar decreases were noted at week 8; however, the drop in blood pressure with lisinopril was not significantly different from that with metoprolol. Systolic blood pressure also demonstrated a decrease of about 18 mm Hg with lisinopril and 12 mm Hg with metoprolol (p less than 0.01). This larger decrease in systolic blood pressure with lisinopril was statistically significant at week 4 (p less than 0.05). These decreases in systolic blood pressures were maintained at week 8, again with statistical significance (p less than 0.01). Of the 118 lisinopril-treated patients, four were discontinued from lisinopril therapy because of headache, dizziness, rash, flushing, or lymphadenopathy. Four patients out of 61 (9.8%) were discontinued from metoprolol therapy because of fatigue, somnolence, asthenia, weight gain, flatulence, tremor, or bronchospasm. In conclusion, lisinopril 40-80 mg once daily is as effective as metoprolol 100-200 mg once daily in reducing diastolic blood pressure in patients with moderate to severe hypertension.(ABSTRACT TRUNCATED AT 250 WORDS)

Age Factors↗
PubMedDate not supplied

[Osteosynthesis by adherent plates. An experimental physical study].

The creation of ridges of the deep surface of plates used for osteosynthesis increases their adherence to bone. By increasing the coefficient of friction between the plate and the bone, the stresses taken by the screws can be diminished by a third. The procedures diminishes by the same amount the risk of stripping or loosening of screws and thus the risk of pseudarthrosis. Experimental study has been made by measurement with the aid of an elliptometer and modifications in the state of polarization of a Lawer beam under the influence of shearing strains. The strains were those imposed on screws in Araldite fixing a plate whose inferior surface was smooth on one end and ridged on the other. The ridges should not be such as to prevent the later removal of the plate. Screws should be applied for preference with a dynamometric screwdriver because the stress relief is maximal with a tightening force of 12 inch pounds.

Animals↗