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Rev. chil. obstet. ginecol ; 80(2): 126-135, abr. 2015. ilus, tab
Article in Spanish | LILACS | ID: lil-747533

ABSTRACT

OBJETIVO: Comparar la efectividad analgésica de la infiltración con Bupivacaína de la incisión de Pfannens-tiel respecto a un placebo para la analgesia posoperatoria de gestantes llevadas a cesárea segmentaria en el Hospital "Dr. Adolfo Pons" de Maracaibo, estado Zulia, Venezuela. MÉTODOS: Investigación comparativa y aplicada, con diseño cuasi-experimental, de casos y controles, contemporáneo y de campo, donde se incluyeron 60 gestantes planificadas para cesárea segmentaria electiva, divididas aleatoriamente en dos grupos pareados para infiltrarles la incisión de Pfannenstiel con 30 mL de Bupivacaína al 0,25% (75 mg) o solución salina. La intensidad del dolor se evaluó mediante la escala visual análoga (EVA). RESULTADOS: En cuanto a la intensidad del dolor, tanto en reposo como en movimiento, se encontraron diferencias altamente significativas a favor del grupo que recibió la infiltración incisional con Bupivacaína durante las primeras seis horas del postoperatorio (p<0,001); posterior a las 8 horas del posoperatorio no hubo diferencias significativas entre los dos grupos evaluados. De igual manera, estas pacientes presentaron un mayor tiempo libre de dolor, que sobrepasaba las 4 horas (251 ± 14 minutos vs. 220 ± 11 minutos; p<0,001), menores requerimientos analgésicos (199,37 ± 0,15 mg vs. 298,04 ± 1,96 mg; p<0,001) y con menos efectos adversos (p<0,05). CONCLUSIÓN: La infiltración de la incisión de Pfannenstiel es efectiva para la analgesia postoperatoria de la cesárea segmentaria, prolongado el tiempo libre de dolor y disminuyendo los requerimientos de analgésicos.


AIM: To compare the analgesic effectiveness of Pfannenstiel incision infiltration with bupivacaine over a placebo for post-operative analgesia in cesarean section in pregnants attending at the Hospital "Dr. Adolfo Pons" in Maracaibo, Zulia state, Venezuela. METHODS: A comparative and applied research, with quasi-experimental, case-control, contemporary and field design, which included 60 pregnant women scheduled for elective cesarean section, divided randomly into two groups matched for Pfannestiel incision infiltration with 30 mL Bupivacaine 0.25% (75 mg) or saline solution. Pain intensity was assessed by visual analog scale (VAS). RESULTS: In terms of pain intensity at rest and in motion, were found highly significant differences in favor of the group receiving the incisional infiltration with bupivacaine during the first six hours after surgery (p<0.001); not later than 8 hours after surgery where in all measurements, were found no significant differences between the two tested groups. Similarly, these patients had higher pain free time, surpassing the 4 hours (251 ± 14 minutes vs. 220 ± 11 minutes; p<0.001), lower analgesic requirements (199.37 ± 0.15 mg vs. 298.04 ± 1.96 mg; p<0.001) and fewer adverse effects (p<0.05). CONCLUSION: The infiltration of the Pfannenstiel incision is effective for postoperative analgesia in cesarean section, prolonged pain-free time and decreasing analgesic requirements.


Subject(s)
Humans , Female , Pregnancy , Adult , Young Adult , Bupivacaine/administration & dosage , Cesarean Section/methods , Anesthetics, Local/administration & dosage , Pain/prevention & control , Postoperative Complications/etiology , Postoperative Complications/prevention & control , Bupivacaine/adverse effects , Comparative Study , Case-Control Studies , Infiltration-Percolation , Cesarean Section/adverse effects , Visual Analog Scale , Abdomen/surgery , Analgesia , Anesthetics, Local/adverse effects
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