A Comparative Study of Immediate and Delayed Supine Position on Hemodynamic Changes of Patients Undergoing Hemorrhoid and Fischer Surgery under Spinal Anesthesia
Iranian Journal of Emergency Medicine,
Vol. 9 No. 1 (2022),
Introduction: Spinal anesthesia is generally used for surgeries related to the lower abdomen, perineum, and lower limbs. The purpose of this study is to compare immediate and delayed supine positions on the hemodynamic changes of patients undergoing hemorrhoid and Fischer surgeries under spinal anesthesia.
Methods: The present study is a case-control study that was conducted on 60 patients who were candidates for hemorrhoid and fissure surgery in Motahari Hospital of Jahrom city by a specific surgeon. Patients were randomly assigned to one of two groups of 30 people in the immediate and delayed supine positions. After the spinal anesthesia, the patients in the delayed supine position group were kept in a sitting position for 3-5 minutes and then assumed the surgical position. In the immediate supine position group, the patients were placed in the supine position after receiving spinal anesthesia and were ready for surgery. Systolic blood pressure, diastolic blood pressure, respiration, arterial oxygen saturation, and pulse of the patient were measured and recorded before and immediately after the position and at 10, 5, 15, 30, 45, 60, and 90 minutes after the position. Data analysis was done using descriptive and inferential statistics tests at a significance level of P<0.05.
Results: The study groups were similar in terms of age and body mass index variables. The mean trend of systolic and diastolic blood pressure in the immediate supine position and delayed supine position groups showed a significant difference from the time before spinal anesthesia to 90 minutes after the operation (P<0.001). The trend of mean MAP and heart rate in the immediate supine position and delayed supine position groups showed a significant difference from the time before spinal anesthesia to 90 minutes after the operation (P<0.001). The amount of ephedrine consumed in the delayed supine position group (10%) was significantly lower than in the immediate supine position group (50%) (P=0.003).
Conclusion: The present study has indicated that the use of a delayed supine position can significantly reduce the number of hemodynamic changes over time compared to the immediate supine position and minimize the amount of ephedrine used to compensate for pressure drop.
- Immediate supine position
- Delayed supine position
- Spinal anesthesia
How to Cite
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