Comparison of frequency of hypotension after subarachnoid block either giving prophylactic intramuscular ephedrine or crystalloid preload in parturients undergoing cesarean delivery

Objective: to compare the frequency of hypotension after subarachnoid block either giving prophylactic intramuscular ephedrine or crystalloid preload in parturients undergoing c-section. material and methods: this study included a total of 100 patients. group-a received crystalloid preload (50 patients) and group-b ephedrine intramuscular (50 patients). two intravenous lines were saved with 18 gauge cannula. mandatory monitoring for arterial pressure,ecg,heart rate and oxygen saturation was applied. results: mean age of the patients was observed 29.1±2.9 years in group-a and 28.7±1.7 years in group-b. hypotension was developed in 25 patients (50.0%) in group-a and 10 patients (20.0%) in group-b. difference between two groups was statistically significant. majority of the patients in group-a,30 patients (60.0%) and in group-b,31 patients (62.0%) had parity 1-2. mean parity of group-a was 2.3±1.1 and of group-b 2.4±0.9. mean heart rate was observed 82.3±7.4 and 81.5±5.2 in group-a and b.