COMPARISON OF THE ONSET OF SENSORY BLOCK USING LIDOCAINE 1.5% WITH ADRENALINE OR LIDOCAINE 1.5% WITH ADRENALINE AND DEXAMETHASONE IN ULTRASOUND GUIDED AXILLARY NERVE BLOCK FOR BELOW ELBOW SURGERIES

The aim: To demonstrate the onset of dexamethasone when added to lidocaine in ultrasound regional axillary brachial block. Materials and methods: 30 patients participated in this study in Al-wasity hospital from June 1st to December 1st 2019; all were of ASA I-II type, aged 18-65 years old. All patients were scheduled for upper limb below elbow surgery with peripheral nerve block. They were divided randomly in to 2 groups: Group A: received 20 ml of lidocaine 1.5% with adrenaline 1:200000; Group 2 : received 20 ml of lidocaine with adrenaline and dexamethasone 8 mg. There was no significant differences among the groups regarding the change in pulse rate, MAP and Oxygen saturation. The group B was faster than group A (p value < 0.001) in both the time of cold sensory block onset and pinprick sensory block onset at all dermatome (C5,C6,C7,C8,T1). Results: A variety of adjuvants have been used with peripheral nerve block to decrease the onset time, improve block quality, and prolong analgesia. Steroids have been shown to be beneficial in improving block onset. Conclusions: Adding dexamethasone to lidocaine enhanced the onset time of the block with no hemodynamic effect.

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Effect of Verapamil Adjuvant with Local Anaesthetic Mixtures in Supraclavicular Brachial Plexus Block

Bangladesh Medical Journal ◽

10.3329/bmj.v46i2.40218 ◽

2019 ◽

Vol 46 (2) ◽

pp. 43-47

Author(s):

Md Arman Ali ◽

Md Latifur Rahman ◽

Mehdi Hassan ◽

Rezwanur Rahman ◽

Kai Nur Asfia ◽

...

Keyword(s):

Brachial Plexus ◽

Brachial Plexus Block ◽

Randomized Study ◽

Onset Time ◽

Sensory Block ◽

Local Anaesthetics ◽

P Value ◽

Group A ◽

Group B ◽

Plexus Block

Among the various approaches to block brachial plexus , supraclavicular approach offers a high success rate for elbow, forearm and hand surgery . Various adjuvant drugs have been used with local anesthetics in order to decrease the time of onset and prolong the duration and quality of regional blocks. So efforts were made to combine the adjuvant with local anesthetics to improve patient and surgeon satisfaction. In this randomized study we tried to see the effect of verapamil in brachial plexus block as an adjuvant with local anaesthetic .This randomized study wasconducted in Anaesthesiology department of ShaheedZiaurRahman Medical College Hospital after approved by the ethical review board of this hospital.The study subject were divided into two groups (Group A=only local anaesthetics&Group B=local anaesthetics with Verapamil) , 30 IN numbers in each group. Group-A patients was administered 15ml of 1% lignocaine with 15 ml of bupivacaine 0.25% while in Group-B patients was administered injection verapamil 3.5 ml (3.5 mg) in addition to the above mixture. In this study mean onset time of sensory block was 11.53 ± 1.4 minutes in group - A and 7.12 ± 1.68 minutes in group – B which is not statistically significant (p value = 0.057). The mean onset time of motor block in group A was 15.26 ± 1.96 min, and in group B was 11.58 ± 2.68 min and this difierence isstatistically significant (p value=0.000152). Duration of motor block was 96.30 min and 115.08 min in group A and Group B respectively. Sensory block was 157.26 min and 188.0 min in group A and Group B respectively. Regarding the heart rate, no significant difference was detected between the groups at the time of preanesthesia and at the 5 min after anaesthesia. Compared with group B patients, group A patients shows slight but statistically significant increased heart rate at the 10 min (80, 92 beat/min respectively) after brachial plexus block. At 30 minute after, mean systolic BP was 97.9±4.7 mmHg in group A and 84.3±5.0 mmHg in group B. At 45 minute after, mean systolic blood pressure was 94.6±15.6 mmHg and 84.3±5.0 mmHg in group A and group B respectively. At 60 minutes after, mean systolic blood pressure was 59.6±6.0 mmHg in group A and 61.2±9.4 mmHg in group B. At 15, 30 and 45 minute difference was statistically significant (p<0.05) between two groups. In conclusion, the study revealed that verapamil can be used as an adjuvant to decrease the onset time of sensory and motor blocks of bupivacaine in supraclavicular block. Moreover, verapamil doses in regional blocks did not show any hemodynamic side effects. Bangladesh Med J. 2017 May; 46 (2): 43-47

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Efficacy of perineural versus systemic dexamethasone in prolonging analgesia after ultrasound guided femoral and sciatic nerve block for patients undergoing below knee surgeries

QJM ◽

10.1093/qjmed/hcaa039.010 ◽

2020 ◽

Vol 113 (Supplement_1) ◽

Author(s):

A A Abdelaziz ◽

H M Elzahaby ◽

A A Elshebeiny ◽

D M Heiba

Keyword(s):

Sciatic Nerve ◽

Nerve Block ◽

Onset Time ◽

Analgesic Efficacy ◽

Sensory Block ◽

Postoperative Pain Management ◽

Sciatic Nerve Block ◽

Dexamethasone Group ◽

Significant Difference ◽

Group B

Abstract Background Poorly controlled acute pain after surgery is associated with a variety of unwanted postoperative consequences, including patient suffering, distress, myocardial ischemia, prolonged hospital stay and increase of chronic pain. Neuroaxial block is used for postoperative pain management and decrease analgesic use. Objective to compare the analgesic efficacy of both, intravenous and perineural administration of dexamethasone during femoral and sciatic nerve block using bupivacaine in patients undergoing below knee surgeries. Patients and Methods In our study, 50 patients were randomly divided into two equal groups: Group A (Perineural Dexamethasone group) [n = 25]: Those cases received 2ml volume of dexamethasone (8mg) combined with the 20 ml of bupivacaine of 0.5% concentration in each block, followed by injecting 5 ml saline intravenous. Group B (Systemic Dexamethasone group) [n = 25]: Those cases received 2 ml of dexamethasone (8mg) diluted over 3 cm saline in a 5 ml syringe following injection of the perineural 20 ml bupivacaine (0.5%) combined with 2 ml saline to have the same syringe volume for each block. Results Our study showed that onset time for sensory block was (25.39 ± 3.79) mins for systemic group and (18.85 ± 4.11) mins in perineural group with a significant statistical difference (P < 0.001) between both groups as the onset of sensory block in perineural group was significantly shorter than the systemic group and the duration of sensory block was (650.00 ± 62.8) mins in systemic group and (718.52 ± 62.06) mins in perineural group. The duration of sensory block was significantly shorter in systemic group than in perineural group with statistically high significant difference between groups (P < 0.001). Onset time for motor block was (30.61 ± 4.89) mins in systemic group and (27.59 ± 3.31) mins in perineural group. Perineural group had shorter time of onset than systemic dexamethasone group with a significant difference between groups (P = 0.013). The duration of analgesia was significantly longer in perineural group than systemic group (P < 0.001) Conclusion Dexamethasone was seen to be a potent adjunct to local anesthetic to prolong post operative analgesia with negligible side effects & better outcome to the perineural route.

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Comparison of Intrathecal Fentanyl and Butorphanol as an Adjuvant to Intrathecal Bupivacaine 0.5% in Infraumbilical Surgeries- A Randomised Double Blind Study

JOURNAL FOR CLINICAL AND DIAGNOSTIC RESEARCH ◽

10.7860/jcdr/2020/44242.13949 ◽

2020 ◽

Author(s):

Sandip Roy Basunia ◽

Prosenjit Mukherjee ◽

Md Bakir Hossain Munshi

Keyword(s):

Spinal Anaesthesia ◽

Motor Block ◽

Controlled Trial ◽

Sensory Block ◽

P Value ◽

Double Blind Study ◽

Hyperbaric Bupivacaine ◽

Double Blind ◽

Group A ◽

Group B

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.

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A comparative study of intrathecal bupivacaine and levobupivacaine for patients undergoing caesarean section

International Journal of Advances in Medicine ◽

10.18203/2349-3933.ijam20195229 ◽

2019 ◽

Vol 6 (6) ◽

pp. 1792

Author(s):

Kiranpreet Kaur ◽

Sanjay Johar ◽

Anil Kumar ◽

Mamta Jain ◽

Prashant Kumar ◽

...

Keyword(s):

Caesarean Section ◽

Onset Time ◽

Sensory Block ◽

P Value ◽

Motor Blockade ◽

Hyperbaric Bupivacaine ◽

Sensory Blockade ◽

Pregnant Females ◽

Haemodynamic Stability ◽

Group B

Background: The present study was conducted to compare the effects of 0.5% isobaric levobupivacaine and 0.5% hyperbaric bupivacaine in pregnant females undergoing caesarean section.Methods: Study was conducted on 100 pregnant females undergoing caesarean section. They were randomly divided into two groups B and L receiving 2 ml of 0.5% hyperbaric bupivacaine and 0.5% levobupivacaine respectively. Two groups were compared with regard to sensory block, motor block, haemodynamic stability and complications if any.Results: Time to achieve sensory blockade till T6 dermatome was prolonged in group B (162.52±80.55 sec) as compared to group L (139.40±49.79 seconds) (p value= 0.087). Prolonged duration of motor blockade was observed in group B (160.76±6.56 minutes) as compared to group L (131.48±14.42 minutes) (p<0.001). Less haemodynamic stability was seen in patients of group B with more incidence of hypotension and bradycardia.as compared to group L.Conclusions: Levobupivacaine is nearly equally effective to bupivacaine to produce sensory and motor blockade with comparable onset time and better haemodynamic stability with lesser side effects.

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Effect of Anaesthesiologists’ Experience on Preferred Technique and Volume of Local Anaesthetic Administered for Brachial Plexus Nerve Block: A Retrospective Observational Analysis

JOURNAL FOR CLINICAL AND DIAGNOSTIC RESEARCH ◽

10.7860/jcdr/2021/47606.14639 ◽

2021 ◽

Author(s):

Depinder Kaur ◽

Reena Mahajan ◽

Shiv Kumar Singh ◽

Suchitra Malhotra

Keyword(s):

Peripheral Nerve ◽

Brachial Plexus ◽

Failure Rate ◽

Nerve Block ◽

Local Anaesthetic ◽

Block Group ◽

Nerve Blocks ◽

Peripheral Nerve Blocks ◽

Group A ◽

Group B

Introduction: Faculty and Residents are trained in peripheral nerve blocks guided by blind technique, Peripheral Neuro Stimulator (PNS) or Ultrasound (USG) guided technique. But due to unavailability of USG machine in all institutes and requiring special training, techniques used for peripheral nerve blocks vary from institute to institute. Aim: To analyse the effect of anaesthesiologists’ experience on preferred technique and Local Anaesthetic (LA) volume used for brachial plexus nerve block retrospectively. Materials and Methods: In this retrospective observational study, 129 adults American Society of Anesthesiologists (ASA) grade I and II patients requiring brachial plexus nerve block for upper limb orthopaedic surgical anaesthesia for both elective and emergency surgery were divided into three groups for each year depending on technique for nerve block used. Group A: Received USG guided (Micromaxx Sonosite Inc, USA) brachial plexus nerve block. Group B: Received peripheral nerve stimulator (Inmed) guided brachial plexus nerve block. Group C: Received brachial plexus nerve block by traditional anatomical landmark based paraesthesia elicitation blind technique. Patients with inadequate surgical analgesia were given general anaesthesia and were categorised as failure rate. Year wise demographic data, type of technique used for giving brachial plexus nerve block, volume of drug used, failure rate, complications observed were collected and analysed by Student’s t-test and Chi-square test. Results: USG guided technique was the most prefered technique in both years (57.6%, n=38 in year 2018 and 49.2%, n=31 in year 2019). In remaining nearly half of the patients PNS and blind technique was used (PNS 24.2%, n=16 in year 2018 and 20.6%, n=13 in year 2019; blind technique 18.2%, n=12 in year 2018 and 30.2%, n=19 in year 2019). Significantly, less volume of LA drug (mL) was used in group A in year 2019 (16.43±6.07) than in year 2018 (22.34±4.75) (p<0.001). Failure rate in group A in year 2019 (3.2%) was significantly less than in year 2018 (5.2%), but the difference was insignificant in all three groups. In group A, no complications were observed in year 2019 while one incidence of hemidiaphragm paralysis was observed in year 2018, while in group B and C, complications were observed in both years. Conclusion: USG guided nerve block was the most preferred technique for nerve block in the study institute. In 24 months observation period, with increasing experience with USG there was significant increase in success rate and decrease in the volume of LA administered and complications.

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A randomised prospective comparative study of evaluation of dexmedetomidine an adjuvant to ropivacaine for ultrasound guided supraclavicular block

International Journal of Clinical Trials ◽

10.18203/2349-3259.ijct20182060 ◽

2018 ◽

Vol 5 (3) ◽

pp. 127

Author(s):

V. S. S. N. Murthy ◽

N. Hari Kiran Verma ◽

Anand Acharya

Keyword(s):

Motor Block ◽

Sensory Block ◽

Study Patient ◽

P Value ◽

Ultrasound Guided ◽

Group A ◽

Prospective Comparative Study ◽

Group B ◽

Supraclavicular Block ◽

Other Regarding

Background: There are clinical evidences for efficacy of dexmedetomidine as an adjuvant to local anaesthetic for peripheral nerve block, but very few published study are available on continuation of dexmedetomidine, with ropivacaine for ultrasound guided supraclavicular block. The present study has been designed to elucidate the effect of dexmedetomidine, in combination ropivacaine on various parameters.Methods: During period of 2 year and 3 months 84 patients were enrolled for this study. Patient in Group A were received 15 ml of 0.5% ropivacaine with 100 microgram one ml dexmedetomidine and Group B were received 15ml of 0.5% of ropivacaine with 1 ml of normal saline. Drug solution was prepared by same individual and was not part of study.Results: Both the group were comparable to each other regarding demography profile. The duration of sensory block 644.96±72.4 min in group A and the duration of sensory block in Group B was 731.53±131.54 min with p value 0.00354. The duration of motor block was 661.5±29.25 in group A and 559.77±29.25 in Group B with P value 0.0001. Duration of analgesia in Group A was 457.06±34.47 min and it was 345.70±38.032 min in Group B. The supplementation of intravenous opioid was required in 3 patients in Group A and 10 patients in group B with P value 0.037.Conclusions: When 100 microgram of dexmedetomidine was added as an adjuvant to ropivacaine is associated with early onset of sensory and motor block, prolongation of sensory and motor block and duration of analgesia in comparison with ropivacaine alone.

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A COMPARATIVE STUDY OF TWO DIFFERENT DOSES OF DEXMEDETOMIDINE AS ADJUNCT TO LIDOCAINE IN INTRAVENOUS REGIONAL ANESTHESIA

Wiadomości Lekarskie ◽

10.36740/wlek202109203 ◽

2021 ◽

Vol 74 (9) ◽

pp. 2259-2264

Author(s):

Diana Salam Sami ◽

Ali Hadi Muslih

Keyword(s):

Regional Anesthesia ◽

Motor Block ◽

Onset Time ◽

Sensory Block ◽

P Value ◽

Intravenous Regional Anesthesia ◽

Group 3 ◽

Group 2 ◽

Different Doses ◽

Group 1

The aim: To compare the different doses of dexmedetomidine as adjuvant to lidocaine in intravenous regional anesthesia. Materials and methods: Ninety patients participated in this study in Al-Yarmook teaching hospital in period between January 1st 2016 – July 1st 2016, divided randomly in to 3 groups. Group 1: received lidocaine diluted with normal saline; Group 2 – lidocaine with dexmedetomidine 0.5 μg/kg; Group3 -lidocaine with dexmedetomidine 1 μg/kg. Statistical analysis was done by IBM SPSS program version 20 and Microsoft excel version 2010 , the means were compared by ANOVA methods and Dunnett t3, significancebetween groups were recorded if p value less than 0.05. Results: Dexmedetomidine was effective in decreasing the sensory block onset time and motor block onset time and prolongation of the motor and sensory recovery with no significant hemodynamic changes than is often shown by the lidocaine alone, it also prolongs the time interval for analgesic requirement after the operation. For the group 3 it was faster than in group 2 and faster than in group 1 significantly (p value < 0.001) to form a sensory block onset and motor block onset; and it took significantly more time to recover the sensation than in group 1 (p value <0.001) and 2 (p value <0.002) , and more time for motor recovery than in group 1 (p value < 0.001). Group 3 had the longest time to call for the analgesia after operation than group 2 and 3 (p value < 0.001); and group 2 also had longer time for the same process than group 1 (p value < 0.001). Conclusions: A variety of adjuvants have been used in IVRA to decrease tourniquet pain, improve block quality, and prolong analgesia after cuff deflation. Opioids are relatively ineffective and cause nausea, vomiting, and dizziness after tourniquet deflation, but several NSAIDs have been shown to be beneficial, dexmedetomidine improves block quality and postoperative analgesia.

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Effects of Intrathecal Dexmedetomidine as an Adjuvant to Hyperbaric Bupivacaine for Spinal Anaesthesia in Adults Undergoing Elective Infra-umbilical Surgery

Journal of Nepal Medical Association ◽

10.31729/jnma.3394 ◽

2017 ◽

Vol 56 (208) ◽

pp. 379-87 ◽

Cited By ~ 3

Author(s):

Binod Gautam ◽

Sujata Niroula ◽

Mona Sharma ◽

Sushila Moktan Lama

Keyword(s):

Spinal Anaesthesia ◽

Local Anaesthetic ◽

Visceral Pain ◽

Sensory Block ◽

P Value ◽

Double Blind Study ◽

Hyperbaric Bupivacaine ◽

Double Blind ◽

Group A ◽

Group B

Introduction: Various adjuvants to local anaesthetic are used to improve quality and duration of spinal anaesthesia. Dexmedetomidine, a novel alpha-2 adrenergic agonist, has been proposed to augment local anaesthetic effects. This study aims to investigate effects of intrathecal Dexmedetomidine on duration of analgesia and duration of sensory block during spinal anaesthesia. Methods: In this randomized double-blind study 38 patients were allocated into each of two groups. Otherwise healthy patients (18 to 75 years) scheduled for inguinal hernia repair or vaginal hysterectomy were included. For spinal anaesthesia, Group A received 2.5 ml hyperbaric Bupivacaine 0.5%, whereas Group B received five micrograms intrathecal Dexmedetomidine in addition. Characteristics of sensory and motor blocks, duration of analgesia, analgesic requirements, and side effects were studied for 24 hours. Student’s t-test for quantitative variables and Chi- squared test for qualitative variables were used for statistical analysis. Results: Duration of analgesia was prolonged in Group B (326 min ±91) as compared to 217 min ±98 in Group A (P value <0.05). Sensory and motor block durations were significantly prolonged in Group B. Time taken to reach significant peak sensory block level was earlier in Group B. Significant reductions in incidence of visceral pain, shivering and analgesic requirements were observed in Dexmedetomidine group, without increased need of medications for altered hemodynamic parameters. Conclusions: Dexmedetomidineas an intrathecal adjuvant to hyperbaric Bupivacaine in spinal anaesthesia prolongs duration of analgesia and sensory block with minimal adverse effects. Keywords: Bupivacaine; Dexmedetomidine; intrathecal adjuvant; spinal anaesthesia.

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COMPARISON OF ULTRASOUND GUIDED MODIFIED PECTORAL NERVE BLOCK WITH LOCAL ANAESTHESTIC INFILTRATION FOR ANALGESIA IN BREAST CANCER SURGERY

Pakistan Armed Forces Medical Journal ◽

10.51253/pafmj.v6i6.4110 ◽

2021 ◽

Vol 71 (6) ◽

pp. 1981-84

Author(s):

Usman Saqib ◽

Rashid Iqbal ◽

Sana Usman ◽

Rashid Hanif

Keyword(s):

Nerve Block ◽

Local Anaesthetic ◽

Local Anaesthesia ◽

Breast Surgery ◽

P Value ◽

Nerve Blocks ◽

Pectoral Nerve ◽

Analgesia Requirement ◽

Group A ◽

Group B

Objective: To compare the frequency of pain and mean analgesia requirement after breast surgery under general anaesthesia when comparing pectoral nerve block with local anaesthesia infiltration. Study Design: Comparative prospective study. Place and Duration of Study: Combined Military Hospital, Rawalpindi from Mar 2018 to Sep 2019. Methodology: A total of 60 patients undergoing modified radical mastectomy were included in the study. Group A (n=30) received pectoral nerve blocks while Group B (n=30) received local anaesthetic infiltration. Outcome was assessed at 12 hours after injection of local anaesthetic. Results: Pain in 7 (23.33%) patients in Group A (Pectoral nerve blocks) and in 20 (66.67%) patients in Group B (Local anaesthetic infiltration), p-value of 0.001 which was considered statistically significant. Mean analgesic requirement was found to be 80 ± 33.73 mg in the Group A (pectoral nerve blocks) compared with 141.67 ± 47.50 mg in Group B (Local anaesthesia infiltration) patients with a p-value of <0.001 which was statistically significant. Conclusion: Pectoral nerve block significantly reduces early postoperative pain and analgesia requirement when compared with Local anaesthesia infiltration after breast surgery.

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EFFICACY OF ANALGESIA PROVIDED BY ULTRASOUND GUIDED FASCIA ILIACA COMPARTMENT BLOCK WITH AND WITHOUT PARACETAMOL (I.V) IN FACILITATING POSITION FOR CENTRAL NEURAXIAL PROCEDURE

10.36106/ijar/4601354 ◽

2020 ◽

pp. 33-34

Author(s):

Preethi HN ◽

Pawan Kumar C ◽

Ravishankar BM

Keyword(s):

Spinal Anaesthesia ◽

Onset Time ◽

Sensory Block ◽

Ultrasound Guided ◽

Significant Difference ◽

Group A ◽

Fascia Iliaca Block ◽

Group B ◽

Fascia Iliaca Compartment Block

Introduction: The use of ultrasound reduces the onset time, improves the quality of sensory block, and minimizes the risks associated with the block. There are few studies supporting the efficacy of ultrasound guided fascia iliaca block Methodology: 60 patients posted for femur surgeries admitted in Orthopaedics Department, were assessed for the inclusion and exclusion criteria and were included in the study after obtaining written informed consent. Results: Among the patients undergoing spinal anaesthesia in fracture femur surgery, 3.3% of patients of both the groups had not satisfactory positioning, 36.7% of Group A and 33.3% of Group B had satisfactory positioning, 50% of Group A and 53.4% of Group B patients had good positioning, 10% of patients of both groups had optimal positioning. Conclusion: Therefore the positioning of the patients for spinal anaesthesia is comparable and is no significant difference is seen among both the groups.

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