The hemodynamic effects of anesthetic induction in vascular surgical patients chronically treated with angiotensin II receptor antagonists

被引:113
作者
Brabant, SM [1 ]
Bertrand, M [1 ]
Eyraud, D [1 ]
Darmon, PL [1 ]
Coriat, P [1 ]
机构
[1] Univ Hosp Pitie Salpetriere, Dept Anesthesiol, Paris, France
关键词
D O I
10.1097/00000539-199912000-00011
中图分类号
R614 [麻醉学];
学科分类号
100217 [麻醉学];
摘要
The use of angiotensin II receptor subtype-l antagonists (ARA), recently introduced as antihypertensive drugs, is becoming more prevalent. We studied the prevalence and severity of hypotension after the induction of general anesthesia in 12 patients treated with ARA until the morning of surgery. The hemodynamic response to induction was compared with that of patients treated with beta-adrenergic blockers (BB) and/or calcium channel blockers (CB) (BB/CB group, n = 45) and angiotensin-converting enzyme inhibitors (ACEI) (ACEI group, n = 27). A standardized anesthesia induction protocol was followed for all patients. Hypotension occurred significantly (p less than or equal to 0.05) more often in ARA-treated patients (12 of 12) compared with BB/CB-treated patients (27 of 45) or with ACEI-treated patients (18 of 27). There was a significantly (P less than or equal to 0.001) increased ephedrine requirement in the ARA group (21 +/- 3 mg) compared with the BB/CB group (10 +/- 6 mg) or the ACEI group (7 +/- 4 mg). Hypotension refractory to repeated ephedrine or phenylephrine administration occurred significantly (P less than or equal to 0.05) more in the ARA group (4 of 12) compared with the BB/CB group (0 of 45) or the ACEI group (1 of 27), but it was treated successfully by using a vasopressin system agonist. Treat; ment with angiotensin II antagonism until the day of surgery is associated with severe hypotension after the induction of anesthesia, which, in some cases, can only be treated with an agonist of the vasopressin system. Implications: Hypotensive episodes occur more frequently after anesthetic induction in patients receiving Angiotensin II receptor subtype-1 antagonists under anesthesia than with other hypotensive drugs. They are less responsive to the vasopressors ephedrine and phenylephrine. The use of a vasopressin system agonist was effective in restoring blood pressure when hypotension was refractory to conventional therapy.
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页码:1388 / 1392
页数:5
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