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Biomedical subjects

B Bhargava

Publications and source records attributed to B Bhargava.

4 recordsLinked to original sources

The effect of i.v. sumatriptan, a selective 5-HT1-receptor agonist on central haemodynamics and the coronary circulation.

1. Sumatriptan (GR43175) is a selective 5-HT1-receptor agonist effective in the acute treatment of migraine. Vasoactive properties in other vascular beds have been suggested by recent in vitro studies. 2. Its effects on coronary artery dimensions and central haemodynamics were assessed in 10 patients undergoing diagnostic coronary arteriography using digital subtraction angiography and invasive haemodynamic monitoring. 3. Following a 10 min i.v. infusion of sumatriptan to a total dose of 48 micrograms kg-1 there was a significant increase (P < 0.05) in systemic and pulmonary arterial pressures. There was a significant reduction in coronary artery diameter from 4.3 +/- 1.6 mm to 3.6 +/- 1.6 mm 12.9 +/- 6.9% (P < 0.001). There was no significant change in heart rate or ECG morphology. 4. Sumatriptan, a 5-HT1-receptor agonist, causes a vasopressor response in the systemic and pulmonary arterial circulations and coronary artery vasoconstriction; in this study there were no clinical sequelae.

Adolescent

Alkaptonuria.

A case of alkaptonuria with its various sequelae in the form of ochronosis, ochronotic arthropathy, spondylitis and prostatic calculi is reported. The case is of interest as it presented with hepatocellular failure and hepatitis B surface antigenaemia.

Alkaptonuria

A computer-based record and clinical monitoring system for ambulatory care.

The Regenstrief Medical Record system is a computer-based medical record system for ambulatory care which has been in operation since 1973. For each patient served, it contains a core medical record including most objective data (treatment records, lab, x-ray and EKG, etc.) and selected items of subjective data. Its supports the care of patients by presenting the clinical data in clear and compact reports and by reminding the physician about clinical conditions that need corrective action. The generation of these computer reminders is totally controlled by physician authored protocols. Each protocol defines an important clinical condition and the content of the reminder to be triggered when that condition occurs. Physician compliance to the standards implicit in these protocols is improved by this feedback. Patient data are captured by computerized ancillary services, (laboratory and outpatient pharmacy) and by manual techniques. Much of these data are recorded by hand (as marks or numbers) on computer-tailored forms which can be optically read by machine. This system represents a different approach to the difficult problems of efficiently using and maintaining patient records.

Ambulatory Care