COMPARISON OF VARIOUS PARAMETERS AFTER INDUCTION OF SPINAL ANAESTHESIA FOR CAESAREAN SECTION IN SITTING AND LATERAL POSITION

2021 ◽  
pp. 22-24
Author(s):  
Krishna Kumar ◽  
Chandeshwar Choudhary ◽  
Debarshi Jana

Background: Hypotension is one of the common complications in patients undergoing surgeries under spinal anesthesia. This phenomenon is comparatively more in pregnant women undergoing caesarean section under spinal anesthesia due to anatomical variations in the spinal cord and physiological changes in pregnant women. Maternal position may inuence the spread of the local anaesthetic drug. So, in this study we have aimed to compare incidence of hypotension and various other parameters like onset of sensory and motor blockade, total number of mephentermine incremental doses (5mg/dose) required in each group to correct hypotension after induction of spinal anesthesia in sitting and lateral position for caesarean sections. Methods: Seventy American Society of Anesthesiologists physical status I and II patients undergoing elective caesarean section were randomnly divided into two groups by closed envelope technique to receive spinal anaesthesia in the lateral position (Group L) or the sitting position (Group S). In Lumbar (L3interspace, lumbar puncture was done after taking aseptic precautions, plain bupivacaine 0.5% heavy 10 or 12 mg according to the height was injected after conrming free ow of cerebro spinal uid. After this, they were placed in the supine position immediately with right wedge providing for left lateral uterine displacement to avoid supine hypotension syndrome. Maternal blood pressure was measured every minute for 5 minutes, every two min for 10 min and 5 minutely thereafter. Hypotension was dened as a fall in systolic blood pressure >20% of the baseline value or a value <90 mmHg. Results: Statistical studies showed that number of patients who received spinal anesthesia in lateral position had signicantly more incidences of hypotension (19 incidences) compared to those who received in sitting position ( 10 incidences) with P value being (P= 0.048). And also there was faster onset (average time) of action (sensory and motor) in Group L(5 minutes for sensory and 6.2 minutes for motor) than compared to Group S (7 minutes for sensory and 7.4 minutes for motor) but not statistically signicant ( P= 0.361 for sensory and 0.639 for motor). We also observed that, total number of incremental doses (5mg/dose) of mephentermine used were more in patients who received spinal anaesthesia in lateral position (n= 10 increments) than compared to those who received in sitting position( n=5 increments) but it was not statistically signicant (P=0.145). Conclusion: Spinal anesthesia given in lateral position of the patients for caesarean section causes signicantly more incidences of hypotension than that given in sitting position. And there were no signicant differences with respect to onset of sensory and motor block and mephentermine requirement between the groups.

Author(s):  
Nutan Dileeprao Kharge ◽  
Ashish Mali ◽  
Pinakin Gujjar

Background: Spinal anaesthesia avoids the problems associated with general anaesthesia such as airway manipulation, polypharmacy, postoperative respiratory problems, and cognitive dysfunction. It can be given in lateral and sitting positions. The aim of the present study was to compare the effect of induction position for spinal anaesthesia in elective caesarean section on hemodynamic, sensory and motor block characteristics and patient satisfaction.Methods: 120 ASA physical status I and II patients undergoing elective caesarean section were randomized to receive spinal anaesthesia in the lateral position or the sitting position. Hyperbaric bupivacaine (0.5%) was injected into the spinal space while the patients were either in sitting or lateral position at L3-L4 level. Effects on hemodynamic parameters, sensory block and motor block characteristics and patient satisfaction were analysed.Results: Demographic characteristics did not seem to have any impact on the overall outcome of the study. Induction position for spinal anaesthesia does not affect the hemodynamic parameters and incidence of side effects when adequate preloading is done. There was no statistically significant difference in the sensory level and motor level achieved. However lateral position appears to be more comfortable than sitting position (P <0.001).Conclusions: Inducing position for spinal anaesthesia did not affect haemodynamic stability and block characteristics in both the groups except that patients feel more comfortable in lateral position.


Author(s):  
Muhammad Arshed ◽  
Hafiza Khatoon ◽  
Kenza Nadeem ◽  
Tahir Ali ◽  
Hira Asad ◽  
...  

Objective: To compare the hypotension in lateral verses sitting positions during induction of spinal anaesthesia for caesarean section. Study Design: This is a Randomized control trial (RCT) study. Setting: Study carried out at Department of Anaesthesiology, Surgical Intensive Care Unit and Pain Management, Civil Hospital, Dow University of health sciences Karachi, from December 2018 to June 2019. Materials and Methods:  All women age 18 to 45 underwent elective caesarian section having ASA I and II, singleton pregnancy on ultrasound with parity ≤3 were enrolled. Patients were randomized to receive spinal anaesthesia in the lateral position (Group L) or the sitting position (Group S) through lottery methods. Using the L3-4 interspace, patients received intrathecal plain bupivacaine, 10mg or 12 mg according to their height, after which they was placed immediately in the supine position with left uterine displacement. Maternal blood pressure was measured with the help of Non-invasive BP apparatus. BP was recorded at baseline then every 5 min till 30 minutes by anesthetist who was unaware of parturient group. Any single or more reading of SBP of <90 mmHg was considered as Hypotension. Results: Mean age of the patients in lateral group was 31.49 ±10.87 years and mean age of the patients in sitting group was 31.80 ±10.77 years (p-value 0.869). Majority of the patients 35 (62.5%) with hypotension were presented with sitting position. Chi square test was applied and statistically significant difference was observed between groups (p-value 0.012).  Conclusion: We concluded that less frequency of hypotension was observed when spinal anaesthesia for caesarean section using plain bupivacaine in the lateral position.


2011 ◽  
Vol 51 (181) ◽  
Author(s):  
A Subedi ◽  
M Tripathi ◽  
BK Bhattarai ◽  
PK Gupta ◽  
K Pokharel ◽  
...  

Introduction: The study compared spinal anesthesia using intrathecal hyperbaric bupivacaine between height and weight adjusted dose and fi xed dose during caesarean section. Methods: A hundred parturients, who had given their consent and were scheduled for elective caesarean section under spinal anesthesia, were randomly assigned into two groups. We adjusted the intrathecal dose of heavy bupivacaine (0.5 %) according to the height and weight of patients (Group AD) from Harten’s dose chart developed from the Caucasian parturients and the fi xed dose (2.2 ml) was used in Group FD patients. Keeping the observer blinded to the study groups, the onset time to sensory block up to T5, haemodynamic changes, side effects, and fetal outcome were observed. Results: The median onset time of spinal block in Group FD was faster than in Group AD (6 min vs. 4 min; p = 0.01). The spinal block level extended above T3 level in a signifi cantly (p < 0.05) larger number of patients 12 (24 %) in Group FD than in one (2 %) patient in Group AD. A signifi cantly (p < 0.05) larger number of patients, 32, (64 %) in Group FD had hypotension than in 15 (30 %) patients in Group AD. The lowest recorded SAP (101 ± 6 mm Hg) in Group AD was higher than in Group FD (96 ± 6.7 mm Hg). Nausea and vomiting were more pronounced in Group FD patients. Conclusions: The bupivacaine dose was signifi cantly reduced on its dose adjustment for the body weight and height of patients for cesearean section. This adjusted-dose use suitably restricted spinal block level for cesarean section with a distinct advantage of less hypotension and with a similar neonatal outcome as fi xed compared with the dose use. keywords: caesarean section; low-dose hyperbaric bupivacaine; spinal anesthesia.


Author(s):  
Pradeep Kumari ◽  
Sifna Tahir ◽  
Haveena Kumari ◽  
Altaf Ahmad Mir

Background: During caesarean section hypotension due to spinal block is secondary to the sympathetic blockade and aorto-caval compression by the uterus. It can have important consequences for the mother and may affect neonatal outcome. The present study was aimed to compare intravenous bolus doses of phenylephrine and ephedrine to treat maternal hypotension during spinal block for elective caesarean section.Methods: After fulfilling the inclusion criteria, 100 parturient were randomly allocated into two groups of fifty each. For spinal anesthesia lumber puncture was done and 12.5mg, 0.5% hyperbaric bupivacaine was given intra-thecally. In this observational study, patients who developed hypotension under spinal anesthesia were selected for the study. According to their group, patients received either ephedrine 6mg (Group E) or phenylephrine 75µg (Group P) as vasopressor. During the study, number of vasopressor boluses, hemodynamic response and time taken to recover from hypotension was noted.Results: Ephedrine and phenylephrine were used in the mean doses of 6.72±1.97mg and 91.5±31.38µg respectively. In 88% parturient single bolus dose of ephedrine was effective in treating hypotension while phenylephrine was effective in 78% parturient. There was no significant difference observed in total number of boluses used. No significant difference was seen in mean systolic blood pressure, mean diastolic blood pressure and mean arterial pressure over a given period of time in Group E and Group P. Mean systolic BP was less than 20% when compared to baseline in both the groups at different time intervals. In Group P the mean heart rate was significantly lower as compared to the Group E (p<0.05).Conclusions: Intravenous phenylephrine and ephedrine are both similar in performance in treating hypotension after spinal anesthesia for elective caesarean section and the hypotensive control offered is comparable.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Nahid Manouchehrian ◽  
Abbas Moradi ◽  
Leyla Torkashvand

Background: Spinal anesthesia is the method of choice for the cesarean section. Hypotension is a common complication of this method. Objectives: This study aimed to compare the effect of spinal anesthesia in the sitting and lateral positions on the onset time of sensory block and hemodynamic condition in cesarean sections. Methods: In this clinical trial, 106 elective cesarean section candidates under spinal anesthesia were selected and randomly divided into two groups: spinal anesthesia in the sitting position (group S) and the lateral position (group L). The onset time of the sensory block, quality of sensory and motor block, hemodynamic condition, frequency of hypotension, nausea, and vomiting, and the doses of ephedrine and atropine were compared between both groups. Data were analyzed with SPSS version 16 software at a 95% confidence level. Results: There was no statistically significant difference between the two groups in terms of age. The frequency of hypotension in L and S groups was 24.5% and 57.7%, respectively (P = 0.001), in minute 6 after spinal anesthesia and 5.7% and 36.5%, respectively (P < 0.001), in minute 8 after spinal anesthesia. The mean time to reach the sensory level of T6 was 1.30 ± 0.43 min versus 4.54 ± 2.12 min (P < 0.001), motor block score in minute 5 was 2.98 ± 0.14 versus 2.82 (P = 0.044), and ephedrine dose was 11.5 mg and 16.92 mg in the L and S groups, respectively (P = 0.010). The maximum sensory-motor block and satisfaction of women with spinal anesthesia were significantly higher in the lateral position than in the sitting position (P < 0.05). Conclusions: Cesarean sections under spinal anesthesia in the lateral position than in the sitting position lead to a more rapid sensory and motor block, reduced ephedrine consumption, and enhanced satisfaction of women.


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