Key result
CCB + β-blocker combinations are linked to ~9 minutes longer hypotension than ACEI + CCB.
Why the study?
Nearly 45% of hypertensive patients undergoing general anesthesia require dual antihypertensive therapy, yet the perioperative hemodynamic effects and hypotension duration of specific drug combinations remain poorly defined.
Do specific dual antihypertensive combinations affect the duration of anesthesia-induced hypotension in hypertensive patients undergoing elective surgery?
Observational (n=93)
Do specific dual antihypertensive combinations affect the duration of anesthesia-induced hypotension in hypertensive patients undergoing elective surgery?
In hypertensive patients undergoing general anesthesia, the duration of anesthesia-induced hypotension varies significantly by dual antihypertensive regimen, being longest with CCB + β-blocker and shortest with ACEI + CCB.
Answers are grounded in this paper and cite their sources.
May inform dual-regimen selection in hypertensive surgical patients; leaves open optimal combination pending randomized data.
Background and Aims: Perioperative hemodynamic instability is a major concern in hypertensive patients undergoing general anesthesia. Nearly 45% of these patients require dual antihypertensive therapy, yet the perioperative effects of specific drug combinations remain poorly defined. While single-agent effects are well documented, data on dual regimens are limited, particularly regarding hypotension duration and recovery. This study compared hemodynamic responses across five commonly used dual antihypertensive combinations. Material and Methods: A prospective observational study was conducted in hypertensive patients aged 35–70 years (American society of anesthesiologist grading (ASA) II/III) on dual therapy scheduled for elective surgery. Patients were grouped into angiotensin II receptor blocker (ARB) + diuretic, angiotensin-converting enzyme inhibitor (ACEI) + diuretic, ACEI + calcium channel blocker (CCB), ARB + CCB, and CCB + β-blocker regimens. Hemodynamic parameters were recorded from induction to 30 minutes post-intubation. The primary outcome was hypotension duration; secondary outcomes included incidence of hypotension, vasopressor use, and heart rate (HR) response. Results: Ninety-three patients were analyzed. Hypotension occurred in 77.4% overall, with no difference in incidence between groups ( P = 0.330). However, hypotension duration differed significantly ( P = 0.007), being longest with CCB + β-blocker (12.4 ± 8.1 minutes) and shortest with ACEI + CCB (3.6 ± 1.5 minutes; mean difference 8.7 minutes, 95% CI: 2.24–15.32, P = 0.003). Post-laryngoscopy HR rise was significantly more attenuated in ARB + CCB versus ARB + diuretic groups (mean difference 17 bpm, P = 0.017). Conclusion: While dual antihypertensive regimens show similar rates of hypotension, recovery duration varies significantly. CCB + β-blocker combinations are associated with prolonged hypotension, whereas ACEI + CCB regimens recover faster. These findings support individualized perioperative monitoring and drug-specific management strategies.
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Bhatia et al. (2026) conducted an observational in Hypertension (n=93). CCB + β-blocker vs. ACEI + CCB was evaluated on hypotension duration (MD 8.7, 95% CI 2.24-15.32, p=0.003). CCB + β-blocker combinations were associated with prolonged hypotension duration compared to ACEI + CCB regimens.
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