Fawad Ahmed Khan, Saleem Sabbar, Javed Ahmad, Abdul Sattar.
Comparison of hemodynamic changes in unilateral and conventional spinal anesthesia.
Pak J Surg Jan ;26(2):130-3.

Objective: The aim of the study was to compare the haemodynamic changes in unilateral and conventional spinal anaesthesia. Study design: Quasi experimental Place and duration of surgery: This study was conducted in Anaesthesia Department of Lyari General Hospital Karachi over a period of 6 months from March 2008 to August 2008. Patients and methods: In this study hundred patients, which were on operation theatre list for inguinal herniorrhapies, were divided into two groups. Group I (n=50) received spinal anaesthesia in sitt ing position and group II (n=50) received spinal anaesthesia in lateral decubitus position with the operating side being dependent. Th ere was no signifi cant difference in age and weight of the patients. Data from the patients was recorded on a proforma. The comparison was made between group I and group II. The changes in heart rate, systolic and diastolic blood pressures were compared at various time intervals. Result: Out of 100 patients. 70 patients belonged to ASA-I and 30 patients belonged to ASAII. The comparison was made between group I and group II. The changes in heart rate, systolic and diastolic blood pressures were compared at 10 minutes, 20 minutes, 30 minutes, 50 minutes and 80 minutes aft er taking baseline readings. The base line readings were not significantly diff erent statistically. Mean heart rate, systolic and diastolic blood pressures significantly reduced from base line in both the groups but these changes in variables were insignificant in both the groups. Conclusion: Haemodynamic stability is slightly more in unilateral spinal anaesthesia but results are statistically insignificant.

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