Zhirajr Mokini1, Giovanni Vitale2, Gabriele Aletti2, Valentina Sacchi3, Tommaso Mauri4, Valentina Colombo2, Roberto Fumagalli4, Antonio Pesenti5. 1. Department of Emergency and Intensive Care, San Gerardo University Hospital, Monza, Italy; Study Group on Acute and Chronic Pain, Italian Society of Anesthesia, Analgesia, Resuscitation and Intensive Care (SIAARTI). 2. Department of Emergency and Intensive Care, San Gerardo University Hospital, Monza, Italy. 3. Department of General Surgery, Lincoln County Hospital, Lincoln, United Kingdom. 4. Department of Health Sciences, University of Milan-Bicocca, Monza, Italy. 5. Department of Emergency and Intensive Care, San Gerardo University Hospital, Monza, Italy; Department of Health Sciences, University of Milan-Bicocca, Monza, Italy. Electronic address: antonio.pesenti@unimib.it.
Abstract
BACKGROUND:Inguinal field block (IFB) is a recommended technique for pain control after inguinal hernia repair but is also underused by surgeons. Currently, there is no decisive evidence on which technique, IFB or spinal anesthesia block (SAB), provides better pain control during the first day after hernia repair. In this study, we compared ultrasound-guided IFB performed by anesthesiologists and SAB for pain control during the first day after hernia repair. METHODS: We compared static and dynamic pain scores measured with a numerical rating scale in 86 male patients scheduled for elective unilateral inguinal hernia repair with either ultrasound-guided IFB (n = 42) or SAB (n = 44). RESULTS:Dynamic and static pain at 4 hours (P < .01, r > 0.34, "large effect size"), and dynamic pain the morning after operation (P = .04, r > 0.20, "medium effect size") were less in the field block group compared with the SAB group. Postoperative analgesic consumption was reduced during hospital stay (P = .005, r > 0.34, "large effect size") and for 7 postoperative days in the field block group (P = .03, r > 0.20, "medium effect size"). CONCLUSION: In this study, ultrasound-guided IFB provided lesser dynamic pain scores during the first postoperative day and reduced use of analgesics for 1 week compared with spinal anesthesia after inguinal hernia repair. Our technique could become a substitute performed by anesthesiologists in settings in which IFB is not performed routinely by surgeons.
RCT Entities:
BACKGROUND: Inguinal field block (IFB) is a recommended technique for pain control after inguinal hernia repair but is also underused by surgeons. Currently, there is no decisive evidence on which technique, IFB or spinal anesthesia block (SAB), provides better pain control during the first day after hernia repair. In this study, we compared ultrasound-guided IFB performed by anesthesiologists and SAB for pain control during the first day after hernia repair. METHODS: We compared static and dynamic pain scores measured with a numerical rating scale in 86 male patients scheduled for elective unilateral inguinal hernia repair with either ultrasound-guided IFB (n = 42) or SAB (n = 44). RESULTS: Dynamic and static pain at 4 hours (P < .01, r > 0.34, "large effect size"), and dynamic pain the morning after operation (P = .04, r > 0.20, "medium effect size") were less in the field block group compared with the SAB group. Postoperative analgesic consumption was reduced during hospital stay (P = .005, r > 0.34, "large effect size") and for 7 postoperative days in the field block group (P = .03, r > 0.20, "medium effect size"). CONCLUSION: In this study, ultrasound-guided IFB provided lesser dynamic pain scores during the first postoperative day and reduced use of analgesics for 1 week compared with spinal anesthesia after inguinal hernia repair. Our technique could become a substitute performed by anesthesiologists in settings in which IFB is not performed routinely by surgeons.