scholarly journals Abdominal girth and vertebral column length aid in predicting intrathecal hyperbaric bupivacaine dose for elective cesarean section

Medicine ◽  
2017 ◽  
Vol 96 (34) ◽  
pp. e7905
Author(s):  
Chang-Na Wei ◽  
Qing-He Zhou ◽  
Li-Zhong Wang
QJM ◽  
2021 ◽  
Vol 114 (Supplement_1) ◽  
Author(s):  
Nada Mohamed Bahaa Eldin Mostafa Abdel Rahman ◽  
Khaled Mohammed Maghawry ◽  
Raham Hasan Mostafa ◽  
Ahmed Wagih Ezzat

Abstract Background Spinal anesthesia is the most popular procedure in the field of anesthesiology. Subarachnoid block is the preferred anesthetic technique for cesarean section, being simple to perform and economical with rapid onset. Lower incidence of failed block, less drug doses, minimal neonatal depression and decreased incidence of aspiration pneumonitis are added advantages of spinal anesthesia. Objectives The study aims to compare the postoperative analgesic efficacy of Fentanyl versus Nalbuphine when used with intrathecal injection of 0.5% hyperbaric bupivacaine in spinal anesthesia in patients undergoing cesarean section as the primary objective and compare intraoperative hemodynamic changes and postoperative pruritus and shivering as the secondary objectives. Methods and material After Approval was obtained from the research ethics committee of faculty of medicine, Ain Shams University and after obtaining a written informed consent. Fifty adult females underwent elective cesarean section with spinal anesthesia, their ages ranged between 18-45 years old and classified as ASA I and II were enrolled in the study at obstetrics and gynecology Ain Shams university hospital over 4 months. The patients were randomly divided using computer generated randomization into two groups 25patients in each (n = 25), Group A received intrathecal injection of 2 ml of 0.5% hyperbaric bupivacaine plus 0.5 ml fentanyl (25 μg); Group B received intrathecal injection of 2 ml of 0.5% hyperbaric bupivacaine plus 0.5 ml nalbuphine (0.8 mg) Results The main significant findings in this study was that fentanyl has a more rapid onset of motor block (5.63±0.25 minute in fentanyl group versus 5.88±0.19 minute in nalbuphine group), while nalbuphine produces less perioperative side effects as: shivering (7 patients in fentanyl group versus 1 patient in nalbuphine group), pruritis (6 patients in fentanyl group versus 1 patient in nalbuphine group), nausea and vomiting (5 patients in fentanyl group versus 1 patient in nalbuphine group). Regarding perioperative hemodynamic parameters and postoperative analgesia, they were comparable between the 2 groups. Conclusions We concluded that either intrathecal nalbuphine (0.8 mg) combined with (10 mg) Bupivacaine or intrathecal fentanyl (25 µg) combined with (10 mg) Bupivacaine improves intraoperative analgesia and prolongs early postoperative analgesia in cesarean section with significantly lower incidence of side effects as shivering, pruritis, nausea and vomiting in Nalbuphine.


2019 ◽  
Vol 9 (2) ◽  
pp. 79-82
Author(s):  
Bharati Devi Sharma Regmi ◽  
Gopendra Prasad Deo ◽  
Subin Shrestha ◽  
Sabita Shrestha ◽  
Renuka Tamrakar Mishra

Background: Spinal anesthesia with hyperbaric bupivacaine provides a dense neural block in cesarean delivery but associated with side effects like hypotension, bradycardia nausea and vomiting. Addition of low dose fentanyl with low dose of hyperbaric bupivacaine may decrease the in­cidence of these complications. The aims of study was to compare the hemodynamic parameters (blood pressure and heart rate), nausea and vomiting with low dose intrathecal hyperbaric bupivacaine with fentanyl vs a conventional dose of intrathecal hyperbaric bupivacaine in patient undergoing elective cesarean section. Methods: Seventy-four pregnant women aged 20-35 years old which un­derwent elective cesarean section at Chitwan Medical College were ran­domized into two groups. One group received spinal anesthesia with 8mg of0.5% hyperbaric bupivacaine and 25μg fentanyl and another group re­ceived 12mg 0.5% bupivacaine. Results: The mean age, baseline heart rate, systolic and diastolic blood pressure were comparable in both groups. Significant difference in hypo­tension (24.31% vs. 62.16%, p<0.05) and Nausea and vomiting (16.20% vs. 27%, p<0.05) were found in bupivacaine-fentanyl group versus a conven­tional dose of spinal bupivacaine group. Conclusions: Low dose of bupivacaine with Fentanyl provides good spinal anesthesia for cesarean section with less hypotension, nausea and vomit­ing in comparison to bupivacaine alone.


2020 ◽  
Vol 4 (3) ◽  
pp. 859-863
Author(s):  
Sangeeta Subba ◽  
Arjun Arjun Chhetri ◽  
Rupak Bhattarai

Introduction: Spinal anesthesia is considered a reasonable choice for cesarean section. Bupivacaine and ropivacaine have been used as intrathecal drugs alone or in combination with various opioids. Ropivacaine is considered a valid and safe alternative to bupivacaine for spinal anesthesia. Objectives: To compare the efficacy and safety of hyperbaric ropivacaine with hyperbaric bupivacaine in spinal anesthesia for elective cesarean section. Methodology: Sixty pregnant women undergoing elective cesarean section were allocated into two groups. Group R received 3 ml of 0.5% hyperbaric ropivacaine (2 ml 0.75% plain ropivacaine mixed with 1 ml of 25 %dextrose) and Group B received 2.5 ml of 0.5% hyperbaric bupivacaine. Both the groups were compared in terms of onset of sensory and motor block, regression of sensory and motor block, duration of analgesia and side effects. Results: The onset of sensory block was comparable in both groups but was statistically insignificant. The onset of motor block in Bupivacaine(7.53 ± 1.72) min was faster when compared to Ropivacaine group(14.33 ± 6.19) min. Regression of sensory and motor block both were faster in Ropivacaine group. Duration of analgesia was longer in Bupivacaine group(131.17 ± 32.95)min than Ropivacaine group(125.33 ± 30.54)min. Conclusion: Ropivacaine can be used as an alternative to Bupivacaine for spinal anesthesia in cesarean section but has a shorter duration of sensory and motor block.


1997 ◽  
Vol 87 (4) ◽  
pp. 874-878 ◽  
Author(s):  
Edward T. Riley ◽  
Dean Walker ◽  
Catherine L. Hamilton ◽  
Sheila E. Cohen

Background Intrathecal sufentanil (ITS) is frequently used to provide analgesia during labor. Decreases in blood pressure and sensory changes in this circumstance suggest that ITS may have a local anesthetic effect and thus cause a sympathectomy. To determine whether ITS given to laboring women causes a sympathectomy, the authors evaluated central and lower extremity temperature changes after ITS administration. These findings were compared with those in a control group of women having spinal anesthesia with bupivacaine for elective cesarean section in whom an extensive sympathectomy was expected. Methods Twenty parturients classified as American Society of Anesthesiologists' physical status 1 or 2 had temperatures measured centrally, at the calf, and at the great toe at frequent intervals after receiving 10 microg ITS for labor analgesia (sufentanil group, n = 10), or hyperbaric bupivacaine 12 mg in their spinal anesthetic for cesarean section (bupivacaine group, n = 10). Calf-to-toe temperature indices (C-T) were calculated by subtracting toe temperature from calf temperature. A decrease in this index means that the toe had warmed compared with the calf and is an indication of vasodilation and a sympathectomy. Results There was no significant change in the C-T indices or central temperature in the sufentanil group, but the C-T indices and central temperature decreased significantly in the bupivacaine group. Conclusions The decreases in the C-T index and central temperature in the bupivacaine group indicate the presence of a sympathectomy. The lack of change in the C-T indices and central temperature in the sufentanil group indicates that no significant vasodilation occurred. Therefore, the decrease in blood pressure seen after ITS administration for labor analgesia is unlikely to be the result of a sympathectomy.


Author(s):  
Ranu Neelamchand Surana ◽  
Trishala Jain

Background: Cesarean section (CS) is one of the most common surgical procedures in female patients. Authors aimed to evaluate the postoperative analgesic efficacy of adding intrathecal fentanyl to bupivacaine, and its effect on the onset and duration of spinal anesthesia along with its effect on mother and neonate.Methods: Study was performed on 60 cesarean section parturients divided into two groups. Group F received 2 ml of 0.5% hyperbaric bupivacaine (10 mg) plus 0.4 ml fentanyl (20 µg), and Group B received 2 ml of 0.5% hyperbaric bupivacaine (10 mg) plus 0.4 ml of normal saline. The parameters taken into consideration were pain scores, analgesic requirement, hemodynamic stability and side effects.Results: It was found that duration of sensory block was prolonged in fentanyl group (111 minutes vs 86 minutes, p<0.001). Duration of effective analgesia (174.36 minutes vs 127.81; p value <0.001) were also found to be prolonged in Group F with requirement of fewer postoperative analgesics (1.02 vs 2.76, p=0.03). There was not much difference in the occurrence of side effects in both the groups.Conclusions: Addition of fentanyl to intrathecal bupivacaine for cesarean section increases the duration of postoperative analgesia without increasing maternal or neonatal side effects.


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