Abstract Background and Aims: Preventing blood redistribution during anesthesia is important to avoid hemodynamic instability and reduce the need for excessive fluids or vasoactive agents. The sequential compression device (SCD) enhances venous return and central blood volume, potentially minimizing hypotension. This study compared hemodynamic changes during subarachnoid block with and without SCD use. Materials and Methods: Eighty patients (>18 years), American Society of Anesthesiologists grades I–II, scheduled for elective surgeries under 3 h, were randomized into two groups. Group A (test) received SCD, whereas Group B (control) did not. The primary outcomes were mean arterial pressure (MAP), systolic blood pressure (SBP), diastolic blood pressure (BP), and heart rate. The secondary outcomes included fluid requirement and vasopressor use. Intergroup comparisons used Chi-square or Fisher’s exact test for categorical variables, independent t -test for normally distributed continuous variables, and Mann–Whitney U test for nonnormal continuous variables, with normality assessed beforehand. Results: SCD use was associated with significantly better intraoperative hemodynamic stability. Patients in the SCD group maintained higher SBP, diastolic BP, and MAP at several time points, all within normal ranges. The incidence of hypotension was markedly lower in the SCD group (15%) compared to the control group (80%). Vasopressor use was also significantly reduced. Although total fluid requirements were comparable, the SCD group required less fluid at 1 and 2 h, reflecting more stable fluid management. Conclusions: SCD significantly reduced intraoperative hypotension and vasopressor requirements whereas improving hemodynamic stability and optimizing fluid management in patients undergoing surgery under subarachnoid block.
Mahazoom et al. (Thu,) studied this question.