[Arterial hypertension of the aged patient in general medicine. French national survey].
The aim of the study was to assess the management of elderly hypertensives in general practice. A sample of 2,727 general practitioners filled a specially designed questionnaire between February and March 1998 in France. Areas covered by the questionnaire included risk of hypertension, blood pressure measurement and treatment. Most respondents (97%) considered that hypertension remains a cardiovascular risk factor in elderly but 4% thought that hypertension is usefull by improving target organ perfusion. Fifty-five percent recorded both standing and supine measurement, 34% reported measuring blood pressure with patient supine only. All respondents reported that they would start antihypertensive treatment on the basis of blood pressure level. A minimum systolic level of 160 and 180 mmHg was given by 65% and 27% practitioners respectively while 2% required a minimum level ranging from 139 to 149 mmHg. Among the respondents who considered that isolated systolic hypertension is pathological (74%), 73% and 19% used 160 and 180 mmHg as cut-off, respectively. Among those who considered that isolated systolic hypertension is physiological (23%), 43% and 46% initiated treatment above 160 and 180 mmHg, respectively. A minimum diastolic level of 90 mmHg was reported by many respondents (61%) while 34% required a cut-off level of 100 mmHg. Comparison of systolic and diastolic levels showed that 49% practitioners started antihypertensive therapy above 160/90 mmHg and 16% above 180/100 mmHg. Less than 1% reported a threshold level of 140/90 mmHg. Most practitioners 5%) treated hypertensive patients regardless of their age. The others treated patients younger than 65 years old (3%), 70 (2%), 80 (5%) and 90 (4%). All respondents reported that they would treat their patients to prevent vascular complications, mainly cerebrovascular (96%), cardiac (89%) and kidney (75%) disease. In conclusion, for all general practitioners, hypertension remains a cardiovascular risk factor in elderly and hypertensive therapy is beneficial to prevent cardiovascular complications. This study reveals some inter-physician variability in blood pressure measurement and treatment. The risk of standing blood pressure fall is not taken into account by 66% of respondents. Variability in age threshold is in accordance with the lack of published data on benefice of hypertensive treatment in the very old. The risk of isolated systolic hypertension is under-estimated by 27% of physicians who reported a minimum systolic blood pressure level of 180 mmHg to initiate therapy.
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Service de gérontologie clinique, hôpital Broca, Paris.
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D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001794:Blood Pressure / Q000502:physiology; D005194:Family Practice; D005260:Female; D005602:France; D019538:Health Care Surveys; D006801:Humans; D006973:Hypertension / Q000175:diagnosis / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D012307:Risk Factors; D011795:Surveys and Questionnaires