The Effect of Active External Warming Using Electric Blankets on Post-Anesthetic Shivering and Hypothermia in Spinal Anesthesia Patients: A Quasi-Experimental Study
DOI:
https://doi.org/10.58545/jcmn.v1i1.875Abstract
Introduction: Post-anesthetic shivering after spinal anesthesia may increase oxygen consumption, discomfort, pain, and difficulties in patient monitoring. Active external warming is a practical nursing intervention to reduce hypothermia-related shivering. Objective: This study aimed to determine the effect of electric warming blankets on the incidence and severity of post-anesthetic shivering and hypothermia among patients undergoing spinal anesthesia. Methods: This study analyzed the effect of an electric warming blanket on shivering among patients after spinal anesthesia. A quasi-experimental posttest-only control-group study was conducted in the operating room of Lavalette Hospital Malang. Thirty postoperative spinal-anesthesia patients were recruited by consecutive sampling and allocated to an intervention group (n=15) that received an electric warming blanket and a control group (n=15) that did not. Shivering was observed 60 minutes after spinal anesthesia, as assessed using the Alfonsi shivering scale. Data were analyzed using the Mann-Whitney test. Result: No shivering was observed in 8 intervention patients (53.3%) compared with 3 control patients (20.0%). The most frequent control-group outcome was grade 2 shivering, observed in 5 patients (33.3%). The Mann-Whitney test showed a significant difference between groups (U=53.500; Z=-2.592; p=0.010). Conclusion: Electric warming blankets significantly reduced shivering severity after spinal anesthesia and may support postoperative comfort and safety.
Keywords:
Electric warming blanket, Post-anesthetic shivering, Spinal anesthesia, Post-operative, HypothermiaReferences
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