scholarly journals Comparison of Intrathecal Dexmedetomidine and Fentanyl as Adjuvants to Hyperbaric Bupivacaine: A Randomised Controlled Trial

Author(s):  
Anuradha Deotale ◽  
Sandeep S Kadam

Introduction: Subarachnoid block using bupivacaine along with fentanyl is routinely used in regional anaesthesia technique in lower limb and lower abdominal surgeries. However, fentanyl is often associated with various side effects. The use of dexmedetomidine as an alternative to fentanyl in regional blocks is emerging due to minimal adverse effects and prolonged duration of action. Aim: To compare intrathecal dexmedetomidine and fentanyl as adjuvants to hyperbaric bupivacaine. Materials and Methods: The prospective, randomised study was performed on 100 patients, divided into two groups. Group I patients were administered with bupivacaine 12.5 mg (2.5 mL)+ fentanyl 25 μg (0.5 mL) whereas group II patients received bupivacaine 12.5 mg (2.5 mL) + dexmedetomidine 5 μg (0.5 mL). Post anaesthesia Heart Rate (HR) and Blood Pressure (BP) were recorded. The onset of sensory and motor block, level of sensory block, time for two segment regression, motor and sensor recovery, duration, quality of analgesia and Visual Analog Scale (VAS) score were recorded. Data were analysed using R Studio V 1.2.5001 software. Wilcoxon signed rank test and independent sample t-test were used to find the difference between mean. The p<0.05 was considered statistically significant. Results: Time for onset of sensory block (p=0.0027), motor block (p<0.001) and peak sensory block (p<0.001) was significantly high in group I patients. Most of the patients of group I had a T8 level of sensory block (38%) while in group II around 36% of patients had T6 level of sensory block. Time for full motor recovery (p=0.0015) and sensor recovery (p<0.001) was high in group II patients. Conclusion: Dexmedetomidine is associated with long term motor and sensory block, excellent analgesia and there was less demand for rescue analgesics as compared to fentanyl.

2021 ◽  
Vol 53 (1-2) ◽  
pp. 27-30
Author(s):  
Moslema Parvin ◽  
Anjuman Ara ◽  
Kazi Nurjahan ◽  
Lipika Roy ◽  
Lailatunnessa

Background: Intrathecal opioids enhance the duration of action of local anasthetic drugs. Both nalpuphine and fentanyl enhance the action of hyperbaric bupivacaine when introduced intrathecally as adjuvant with bupivacaine. Objective: Our study was aimed to compare the clinical efficiency of nalbuphine and fentanyl as adjuvant to hyperbaric bupivacaine for anal and perianal surgery. Methods: In this prospective randomized clinical trial patients were included from January 2007 to June 2008 at Khulna Medical College & some private clinics in Khulna. Patients were ASA (American Society of Anaesthesiology) status I & II of both gender aged 18-70 years and was randomized into two groups. Each group received either nalbuphine, (Group I) or fentanyl (Group-II) with bupivacaine. After intrathecal use every patient was examined for sensory and motor block, drug related side effects like hypotension pruritus, nausea, vomiting respiratory depression for three hours and were recorded. Results: Among two hundred study patients mean age was 49.5 and 5.2 in respective group I & II. Male female ratio was 16:14 in group I, whereas in group II it was 65:35. Mean duration of surgery was 46 and 43 minutes respectively in group I & II. Onset and cephalic extension of block was almost same in both groups. Time to recovery of sensory and motor block were significantly prolonged in Group 1. Duration of analgesia was also extended in group I. No significant drug related side effects were observed in either group. Conclusion: Nalbuphine as adjuvant to bupivacaine was clinically more efficient than fentanyl for post--operative analgesia and duration of sensory and motor block in SAB (Sub Aracnoid Block) for anal and perianal surgery. Bang Med J Khulna 2020: 53 : 27-30


Author(s):  
Aruna Mahanta ◽  
Keshav Saran Agrawal

Background: most of the gynaecological interventions are generally done under regional anaesthesia. Currently dexmedetomidine came out as a beneficial adjunct for regional analgesia as well as anaesthesia. It is a highly selective α-2 agonist. Aims & objectives: to compare the effects & behavior of dexmedetomidine with clonidine when both are used with bupivacaine for spinal analgesia. Material and Methods: 100 cases of ASA grade 1 & 2 who were undergoing elective gynaecological surgical intervention were studied. They were divided into two groups (50 each). Group I received combination of bupivacaine & clonidine while group II received combination of bupivacaine + dexmedetomidine. Results: Average duration of onset of sensory block was earlier in group II. Arrival of motor block in Group I was slightly on lower side than Group II. Ten cases in Group I and eighteen cases from group II had notable bradycardia and hypotension. Discussion: Our study concludes that dexmedetomidine when used in combination with bupivacaine is very effective in gynaecological surgical interventions that demand longer duration & have comparatively lesser side effects. Keywords: dexmedetomidine, clonidine, Bupivacaine, gynaecological procedures.


2020 ◽  
Vol 11 (2) ◽  
pp. 59-63
Author(s):  
Hari Poudel ◽  
Surinder Nath Bawa ◽  
Surendra Mohan Sharma

Background: Spinal anaesthesia has been widely used for lower abdominal surgeries like hysterectomy.Hyperbaric bupivacaine is the most extensively used local anesthetic. Addition of fentanyl can allow the reduction in the dose of bupivacaine, increase the height and duration of sensory blockade, and reduces complications of spinal anesthesia. Aims and Objective: The aim of the study was to examine whether adding fentanyl to hyperbaric bupivacaine would increase the height of sensory blockade, accelerate the onset of sensory blockade and increase the duration of the sensory blockade. Material and Methods: This study was done in Manipal Teaching Hospital, Pokhara, Nepal that included hundred patients who underwent total abdominal hysterectomy. The patients were randomly allocated in two groups; Group I: received 0.5% hyperbaric bupivacaine 2.5 ml (12.5 mg) plus normal saline 0.5 ml. Group II: received 0.5% hyperbaric bupivacaine 2.5 ml (12.5 mg) plus 0.5 ml fentanyl (25 μg). Hemodynamic variables, onset of motor and sensory blockade, duration of sensory and motor blockade and any side effects were observed and recorded. Results: The highest and lowest sensory block in Group I was T-7 and T-9 whereas in Group II was T-5 and T-9 respectively. In group I, the mean onset till maximum height of sensory blockade was 7.04 min whereas in group II it was 5.96 min (P<0.00).There was no significant statistical difference in the incidence of side effects in both the groups. Conclusion: Intrathecal fentanyl with hyperbaric bupivacaine for spinal anesthesia significantly accelerated the onset of sensory blockade and increased its maximum height and duration.


Author(s):  
Sandip Roy Basunia ◽  
Prosenjit Mukherjee ◽  
Md Bakir Hossain Munshi

Introduction: Neuraxial opioids are widely used as adjuvants to local anaesthetic as they improve quality and duration of block. Neuraxial opioids like Butorphanol and Fentanyl allow prolonged analgesia in the postoperative period and faster recovery from spinal anaesthesia. Aim: To compare the safety and efficacy of Butorphanol and Fentanyl combined with bupivacaine for spinal anaesthesia in infraumbilical surgeries. Materials and Methods: The present study was a randomised controlled trial in which 110, ASA I and II patients of either sex who underwent elective infraumbilical surgeries under spinal anaesthesia were selected. Patients were allocated randomly into two groups A (n=55) and B (n=55). Group A (F) received intrathecal 0.5% hyperbaric bupivacaine 12.5 mg (3 mL) with fentanyl 25 microgram (0.5 mL) to make it total 3.5 mL. Group B (B) received intrathecal 0.5% hyperbaric bupivacaine 12.5 mg (3 mL) with butorphanol 250 microgram (0.25 mL) and Normal Saline (NS) 0.25 mL to make it total 3.5 mL. Heart Rate (HR), Systolic and Diastolic Blood Pressure (SBP, DBP), two segment regression time of sensory block, motor block were assessed at preset intervals. Chi-square test or Fischer’s-exact test were used and a p-value ≤0.05 was considered as statistically significant. Results: Mean of two segment sensory regression time of Group A was 41.94±1.73 minutes and Group B was 50.56±4.43 minutes (p<0.0001). Time to onset of motor block in Group A was 5.28±.32 minutes and Group B was 5.27±.32 minutes (p=0.96). Mean duration of motor block in Group A was 81.23±4.87 minutes and Group B was 109.83±2.61 minutes (p<0.0001). Time to rescue analgesic was 289.27±7.37 minutes in Group A and 378.41±10.25 minutes in Group B (p<0.0001). HR, SBP and DBP were comparable among the groups. Conclusion: Intrathecal bupivacaine-butorphanol mixture was clinically better as it provided longer duration of analgesia with lesser incidences of pruritus and nausea/vomiting compared to intrathecal fentanyl-bupivacaine mixture.


JMS SKIMS ◽  
2019 ◽  
Vol 21 (2) ◽  
pp. 95-100
Author(s):  
Talib Khan ◽  
Ubaid Ahmad Sheikh ◽  
Shaqul Qamar Wani ◽  
Zarka Sarwar

Background: Spinal anesthesia is commonly used anesthetic modality worldwide but with the limitation of relatively short duration of action and complain of post-operative pain. However, the addition of adjuvants have intensified and increased the duration of sensory block with concommitent prolongation of the duration of postoperative analgesia. Study design and settings: This prospective randomized study was conducted in the Department of Anesthesia, Pain and Critical Care at the University Teaching Hospital. Methods: 60 patients irrespective of their age and gender were randomized equally into two groups, and received 3ml of total drug volume intrathecally (IT) viz 2.5 ml of hyperbaric bupivacaine 0.5% mixed with 0.5 ml of normal saline in Group I and 0.5 ml of 5 mcg of Dexmedetomidine in Group II respectively. Results: The maximum height of sensory block achieved were dermatomes T 6.5 ± 1.43 in Group I, and T 6.20 ± 1.28 in Group II (P value, 0.794 > 0.05) with time required to reach T10 sensory block level was 6.70 ± 0.98 min. in Group I and 5.50 ± 1.00 min. in Group II (P value, 0.001) The time to reach Bromage scale 3 was   15.70 ± 2.56 min. in Group I and 8.55 ± 1.67min. in Group II (P value, < 0.001) The time of first rescue dose requested by patient was 196.75 ± 15.16 min. in Group I, and 359.50 ± 49.79 min. in Group II (P value,  0.01)                                           Conclusions: Dexmedetomidine in doses of 5 µg as adjuvants to hyperbaric 0.5% bupivacaine intrathecally produced a significantly quick onset and longer duration of motor and sensory block with benefit prolonged postoperative analgesia. JMS 2018: 21 (2):95-100


2020 ◽  
Vol 5 (1) ◽  
pp. 100-102
Author(s):  
Rangit Priyakar Pandey ◽  
Richa Chandra

Background: The present study was conducted to evaluate and compare dexamethasone and tramadol as adjuvant to levobupivacaine in supraclavicular block. Subjects and Methods: The present study was conducted on 50 patients of American Society of Anesthesiologists (ASA) grade I and II. Patients were divided in to two groups of 25 each. In group I, 30 ml of 0.5% levobupivacaine hydrochloride plus 2 ml tramadol (100 mg) was used. In group II, 30 ml of 0.5% levobupivacaine hydrochloride plus 2 ml dexamethasone (8 mg) was used. Visual Analogue Scale was used. The onset of sensory and motor block was evaluated.Results: The mean onset of sensory block in group I was 5.41 minutes and in group II was 3.86 minutes, motor onset was 9.12 minutes in group I and 7.25 minutes in group II, duration of sensory block in group I was 12.14 hours and in group II was 15.34 hours, duration of motor block in group I was 14.34 hours and I group II was 16.23 hours, duration of analgesia in group I was 16.1 hour and in group II was 18.4 hours. The difference was significant difference (P<0.05). The mean VAS score in group II was better as compared to group I (P <0.05). Conclusion:Authors found that dexamethasone is a better adjuvant than tramadol when added to levobupivacaine in supraclavicular brachial plexus block.


2020 ◽  
Vol 5 (2) ◽  
pp. 39-42
Author(s):  
Nischala Reddy G ◽  
Ajay Babu Ramakrishnan ◽  
S. Ankalagowri Sankardevar ◽  
Uthkala B Hegde

Background: The present study was conducted to compare the efficacy of intrathecal neostigmine with intrathecal dexmedetomidine in postop- erative analgesia. Subjects and Methods: The present study was conducted in the department of Anesthesia involving 100 patients belonging to ASA grade I and II, posted for elective Sub umbilical surgeries, under spinal anaesthesia. Group I patients received 3.0ml of hyperbaric solution of 0.5% bupivacaine + 50mcg (0.5ml) of Neostigmine. Group II patients received 3.0ml of hyperbaric solution of 0.5% bupivacaine + 10mcg (0.5ml) of dexmedetomidine. Results: The maximum patients were seen in age group 18-30 years ie 10 in group I and 16 in group II and minimum in 41-50 years ie 6 in group I and 4 in group II. The mean time for onset of sensory block in group I was 1.43 0.53 min and in group II was 2.319   0.44 min. The mean time for onset of peak sensory block in group I was 5.48    0.43 min and Group II was 7.31    0.44 min.  Time for two segment regression was significantly higher in dexmedetomidine group as compared to neostigmine group, the mean time for two segment regression in group I was 124.98 21.48 min and group II was 165.24 14.45 min. The mean time for onset of motor block was 3.079 0.44 min in group I and 4.0454  0.38 min in group II. The mean duration of motor block in group I was 191.58  26.81 min and 324   36.8 min in group II. The difference was significant (P< 0.05). The mean sedation score in group I was 1.03 and in group II was 2.07. The difference was significant (P< 0.05). Conclusion: Authors recommend the use of dexmedetomidine as an adjuvant to bupivacaine in subarachnoid block


2021 ◽  
pp. 55-58
Author(s):  
Rahul Wagh ◽  
Swapnil Sangale ◽  
Nagesh Jambure

Background: Various methods exist for treating post-operative pain which includes systemic narcotics, NSAIDS, patient-controlled analgesia, regional anaesthesia techniques, epidural local anaesthetic – narcotic mixtures, cryoanalgesia, transcutaneous electric nerve stimulation, psychological methods. Various opioides intrathecally and epidurally have been tried for post-operative analgesia. These include - morphine, pethidine, pentazocine, methadone, tramadol, Fentanyl, sufentanyl. In present study, we tried to find out analgesic effectiveness of intrathecal Fentanyl for post-operative analgesia, combined with 0.5 % Bupivacaine and side effects if any, in patients undergoing lower limb surgeries. Materials and Methods: After approval from the local ethics committee and with written informed consent from patient, a randomized controlled prospective study is carried out in the medical college and hospital.100 patients belonging to American Society of Anesthesiologists (ASA)classification I &amp; II, aged between 18-60 years, posted for elective lower limb surgeries, were randomly allocated for the study. Group-I: 50 patients received intrathecal 3 ml of 0.5 % hyperbaric Bupivacaine only. Group-II : 50 patients received intrathecal 3 ml of 0.5% hyperbaric Bupivacaine and Fentanyl 25 mcg.The patients studied across the group did not vary much with respect to age,height, weight and sex distribution. Results: The onset of sensory blockade was faster by 1.27 min in Group-BF. The perioperative and postoperative hemodynamic parameters were comparable in both the groups. The sensory analgesia in Group II was significantly prolonged by 159 mins, thus increasing the duration of analgesia. The time of first request of analgesics by the patients in group-II is prolonged compared to group-I thus prolonging the duration of analgesia. Analgesic requirement is also reduced in study group in early post-operative period. The onset of motor block was faster when Fentanyl was added to intrathecal Bupivacaine and it was 1.1 min earlier in study group. The duration of motor block to Bromage III was prolonged by almost 22 min in study group as compare to control group. Visual analogue scores were significantly lower in group-II compared to group-I after two hours of surgery thus reducing the frequency of supplemental postoperative analgesics. Conclusion: With the present study we can summarize that intrathecal Fentanyl potentiates the action of Bupivacaine thereby bringing about better quality and longer duration of analgesia, intense motor block, no hemodynamic disturbance and better postoperative outcome with/ minimum side effects.


2014 ◽  
Vol 2014 ◽  
pp. 1-7
Author(s):  
Bahittin Nazli ◽  
Huseyin Oguzalp ◽  
Eyup Horasanli ◽  
Mehmet Gamli ◽  
Beyazit Dikmen ◽  
...  

Aim. To evaluate the effects of 0.5% levobupivacaine at 37°C preheated from room temperature, on sensorial block, motor block, and haemodynamics in patients undergoing transurethral prostate resection (TUR-P).Material and Method. The patients were randomly allocated to two groups: Group I patients were injected with 3 mL 0.5% levobupivacaine solution which had been kept at room temperature for at least 24 hours and Group II patients were injected with 3 mL 0.5% levobupivacaine solution which had been kept at 37°C for at least 24 hours. The patients were examined in terms of sensorial block, motor block, haemodynamic profile, and incidence of side effects.Results. No significant difference was found between the groups in terms of demographic data. The time to reachT10sensory block and the time of starting motor block were found to be significantly shorter in Group II . The duration of sensory block overT10andT6, the duration ofL1regression, the duration of the sensory block, and the regression time of the motor blocks from 3 to 2 were found to be longer in Group II.Conclusion. The use of 0.5% levobupivacaine spinal anaesthesia heated to 37°C accelerated the start of sensory and motor block.


Author(s):  
Văn Trí Nguyễn

EVALUATION OF SOME CORRELATIVE FACTORS AFFECTING TO BRACHIAL PLEXUS BLOCK IN UPPER LIMB SURGERIES Objective: To assess correlations between age and onset sensory block, age and duration of sensory block, the procedure time and BMI. As well as evaluating the degree of sensory and motor blockade. Subjects and methods: 120 patients underwent upper limb surgery in Hue Central Hospital from 5/2017 to 6/2018. Patients were divided into two groups, group I was 60 patients undergoing ultrasound-guided supraclavicular brachial plexus block, group II was 60 patients with nerve stimulor technique. Each group received 25ml levobupivacaine 0.5% and 1 / 200,000 adrenalin. Results: There were the strong positive correlation between the procedure time and BMI, age and duration of sensory block. There was an inverse correlation between age and onset sensory block. The procedure time was 9,82 ± 4,55 minutes in group I and 14,73 ± 4,73 minutes in group II (p < 0,05). The onset of sensory and motor block was 6,15 ± 1,60 minutes and 7,95 ± 1,05 minutes in group I and 9,92 ± 2,88 minutes and 12,63 ± 2,15 minutes respectively in group II (p < 0,05). The duration of sensory and motor block was 481,38± 116,66 minutes and 412,97 ± 107,32 minutes for group I and 319,22 ± 143,14 minutes and 205,88 ± 48,96 minutes respectively in group II. Conclusion: The procedure time and BMI, age and duration of sensory block, age and onset sensory block, all of them were strongly correlated. Ultrasound guidance for supraclavicular brachial plexus blockade provides a block that was faster in onset, longer duration of block. Key words: brachial plexus block, upper limb surgeries


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