scholarly journals Defining the minimal effective volume and amount of lidocaine to perform a femoral nerve block under ultrasound control

2020 ◽  
Author(s):  
Valery Piacherski ◽  
Aliaksei Marachkou
Keyword(s):  
Sciatic Nerve ◽  
Nerve Block ◽  
Local Anesthetics ◽  
Peripheral Nerves ◽  
Femoral Nerve Block ◽  
Femoral Nerve ◽  
The Body ◽  
Effective Volume ◽  
Nerve Blocks ◽  
Nerve Blockade

Abstract BackgroundThe application of the combination of local anesthetics (LA) in some parts of the body increases the amount of LA and plasma concentration. The aim of our research was to define the minimal effective volume and amount of lidocaine with added adrenaline (1:200,000) to perform a femoral nerve block under ultrasound control and with neurostimulation. MethodsFemoral nerve blockade was performed with the following lidocaine solutions: 0.75% -10 ml, 7.5 ml; 1% -20ml, 15ml, 10ml, 7.5ml, 5ml; 1.5% -5ml, 4ml; 2% -5 ml, 4 ml; 3% -5ml, 4ml, 3ml; 4% -5 ml, 4 ml, 3 ml, 2.5 ml. All blocks were performed with added adrenaline (1:200,000). In all, 181 blocks of the femoral nerve, in combination with sciatic nerve blocks, were carried out with the help of the electrostimulation of peripheral nerves, and under ultrasound. The quality of motor and sensory blocks was assessed after 45 min of administration of the femoral nerve block. ResultsA total of 181 femoral nerve blocks, in combination with sciatic nerve blocks, were used via the help of electrostimulation of the peripheral nerves (EPN), and under ultrasound (US) control. The femoral nerve blockade was effective with the following lidocaine solutions: 0.75% -10 ml (75mg); 1% -20ml, 15ml, 10ml, 7.5ml (75mg); 1.5% -5ml (75mg); 2% -5 ml (100 mg); 3% -5ml (150mg); 4% -5 ml (200mg). Femoral blockade was ineffective when using the following solutions of lidocaine: 0.75% - 7.5ml (56.25 mg); 1% - 5ml (50mg); 1.5% - 4ml (60mg, No spread along the entire circumference of the nerve - NSAECN); 2% - 4 ml (80mg, NSAECN); 3% - 4ml (120mg NSAECN), 3 ml; 4% - 4 ml (160 mg, NSAECN), 3 ml, 2.5 ml. ConclusionFor a complete motor and sensory block of the femoral nerve: the minimum effective volume of local anesthetics was 5 ml; and the minimum effective amount of lidocaine was 75 mg. А complete block of the femoral nerve was achieved only with the spreading of local anesthetic along the whole circumference of the femoral nerve.

scholarly journals Comparison of continuous femoral nerve block with and without combined sciatic nerve block after total hip arthroplasty: a prospective randomized study

2017 ◽  
Vol 9 (2) ◽  
Author(s):  
Shoji Nishio ◽  
Shigeo Fukunishi ◽  
Tomokazu Fukui ◽  
Yuki Fujihara ◽  
Shohei Okahisa ◽  
...  
Keyword(s):  
Postoperative Pain ◽  
Sciatic Nerve ◽  
Total Hip Arthroplasty ◽  
Nerve Block ◽  
Hip Arthroplasty ◽  
Femoral Nerve Block ◽  
Femoral Nerve ◽  
Sciatic Nerve Block ◽  
Nerve Blockade ◽  
Continuous Femoral Nerve Block

In association with the growing interests in pain management, several modalities to control postoperative pain have been proposed and examined for the efficacy in the recent studies. Various modes of peripheral nerve block have been proposed and the effectiveness and safety have been examined for each of those techniques. We have described our clinical experiences, showing that continuous femoral nerve block could provide a satisfactory analgesic effect after total hip arthroplasty (THA) procedure. In this study, we compared the effectiveness and safety of continuous femoral nerve block with and without sciatic nerve blockade on pain control after THA. Forty patients scheduled for THA were included in the study and randomly divided into 2 groups. Postoperative analgesic measure was continuous femoral nerve block alone, while the identical regimen of continuous femoral nerve block was combined with sciatic nerve block. The amount of postoperative pain was evaluated in the immediate postoperative period, 6 hours, and 12 hours after surgery. Moreover, postoperative complications as well as requirement of supplemental analgesics during the initial 12 hours after surgery were reviewed in the patient record. The obtained study results showed that the supplemental sciatic nerve blockade provided no significant effect on arrival at the postoperative recovery room, while the NRS pain score was significantly reduced by the combined application of sciatic nerve blockade at 6 and 12 hours after surgery. In the investigation of postoperative analgesiarelated complications, no major complication was encountered without significant difference in complication rate between the groups.

scholarly journals Effects of the addition of dexamethasone on postoperative analgesia after anterior cruciate ligament reconstruction surgery under quadruple nerve blocks

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Yuki Aoyama ◽  
Shinichi Sakura ◽  
Shoko Abe ◽  
Erika Uchimura ◽  
Yoji Saito
Keyword(s):  
Sciatic Nerve ◽  
Acl Reconstruction ◽  
Nerve Block ◽  
Femoral Nerve Block ◽  
Cruciate Ligament ◽  
Femoral Nerve ◽  
Hamstring Tendon ◽  
Sciatic Nerve Block ◽  
University Hospital ◽  
Nerve Blocks

Abstract Background Anterior cruciate ligament (ACL) reconstruction is an invasive surgical procedure for the knee. Quadruple nerve blocks including continuous femoral nerve block and single-injection sciatic, obturator, and lateral femoral cutaneous nerve blocks can provide effective intraoperative anesthesia and analgesia in the early postoperative period. However, severe pain often appears after the effect of single-injection nerve blocks resolves and that is why we conducted two studies. The first study was to determine whether dexamethasone administered along with local anesthetic for sciatic nerve block could prolong the duration of analgesia in patients given quadruple nerve blocks, including continuous femoral nerve block, for ACL reconstruction using a hamstring tendon autograft. The second study was designed to evaluate any difference in effects from dexamethasone administered perineurally versus intravenously. Methods Patients undergoing unilateral arthroscopic ACL reconstruction using a hamstring tendon autograft were enrolled into two studies. The first study was prospectively conducted to see if dexamethasone 4 mg could prolong the duration of analgesia when administered perineurally to the subgluteal sciatic nerve with 0.5% ropivacaine. In the second study, we retrospectively evaluated the effects of intravenous dexamethasone 4 mg as compared with those of perineural dexamethasone to the sciatic nerve block and effects with no dexamethasone. Results In the first study, perineural dexamethasone prolonged the duration of analgesia by 9.5 h (median duration: 22.5 and 13.0 h with and without perineural dexamethasone, respectively, P = 0.011). In the second study, the duration of analgesia was similarly prolonged for intravenous and perineural dexamethasone compared with no dexamethasone. Conclusion Perineural dexamethasone administered along with local anesthetic for single sciatic nerve block prolonged the duration of analgesia of quadruple nerve blocks for ACL reconstruction, however the effects were not different from those of intravenous dexamethasone. Trial registration The protocols of both studies were approved by the Institutional Review Board of Shimane University Hospital, Japan (study number 2821 and 3390 for study 1 and study 2, respectively). Study 1 was registered in University Hospital Medical Information Network Clinical Trials Registry (UMIN000028930). Study 2, which was a retrospective study, was not registered.

scholarly journals Defining the minimal effective volume and amount of lidocaine to perform a femoral nerve block under ultrasound control.

2019 ◽  
Author(s):  
Valery Piacherski ◽  
Aliaksei Marachkou
Keyword(s):  
Nerve Block ◽  
Femoral Nerve Block ◽  
Femoral Nerve ◽  
Sensory Block ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Effective Volume ◽  
Nerve Blocks ◽  
Cross Sectional ◽  
The Cross

Abstract Background. The aim of our research was to define the minimal effective volume and amount of lidocaine with added adrenaline (1:200,000) to perform a femoral nerve block under ultrasound control and with neurostimulation.Methods. The chosen starting concentration of lidocaine was 1%, as the most widely applied solution for the peripheral blocks. Subsequently , depending upon the acquired results, we applied 0.75%, 1.5%, 2%, 3%, and 4% solutions in volumes that were defined in accordance with the results of the research. All blocks were performed with added adrenaline (1:200,000). In all, 181 blocks of the femoral nerve, in combination with sciatic nerve blocks, were carried out with the help of the electrostimulation of peripheral nerves, and under ultrasound.Results. While measuring the cross-sectional area of the femoral nerve, no valid intergroup differences were observed (p = 0.98). The cross-sectional area of the femoral nerve within the region of the performed block was 0.27 cm2 (range: 0.24–0.3 cm2). Our research indicated that the minimal efficient volume of lidocaine that was necessary for the development of a complete block of the femoral nerve was 5 ml, and the amount of 75 mg. Conclusion. For a complete motor and sensory block of the femoral nerve: the minimum effective volume of local anesthetics was 5 ml; and the minimum effective amount of lidocaine was 75 mg. А complete block of the femoral nerve was achieved only with the spreading of local anesthetic along the whole circumference of the femoral nerve.

scholarly journals Efficacy of Dexmedetomidine as an Adjuvant to Bupivacaine in Peripheral Nerve Block - Three Prospective Randomized Controlled Studies

QJM ◽  
2020 ◽  
Vol 113 (Supplement_1) ◽  
Author(s):  
G M Nassif ◽  
B M E Noreldin ◽  
H M M Elazzazi ◽  
F A Abdelmalek ◽  
M M Maarouf
Keyword(s):  
Peripheral Nerve ◽  
Nerve Block ◽  
Local Anesthetics ◽  
Femoral Nerve Block ◽  
Femoral Nerve ◽  
Nerve Blocks ◽  
Peripheral Nerve Blocks ◽  
Group I ◽  
Group Ii ◽  
Long Acting

Abstract Introduction Peripheral nerve blocks are frequently used as the sole anesthetic technique or as an adjuvant to general anesthesia, However, the duration of sensory nerve block after single doses of long-acting local anesthetics is not consistent enough to avoid the use of postoperative opioids. Many adjuvants have been added to prolong the duration of nerve block, It was recently suggested that, based on current evidence, perineural dexmedetomidine is the most promising adjuvant to extend the duration of long-acting local anesthetics Aim The aim of this work is to study the effects of dexmedetomidine as an adjuvant to bupivacaine in various peripheral nerve blocks. The study will include: supraclavicular brachial plexus block, paravertebral block and femoral nerve block. Patients Adult patients of either sex aged 25 – 60 years, ASA physical status I and II, Elective surgeries appropriate for the nerve block. Methods patients received bupivacaine 0.5% alone in (group I) or bupivacaine 0.5% combined with 100 dexmedetomidine (group II) in peripheral nerve blocks. Motor and sensory block onset times; durations of blockades and analgesia were recorded Results Sensory and motor block onset times were shorter in group II than in group I. Sensory and motor blockade durations were longer in group II than in group I. Duration of analgesia was longer in group II than in group I. Systolic, diastolic arterial blood pressure levels, and heart rate were less in group II. Conclusion In the current study, it was obvious that:(Addition of dexmedetomidine to bupivacaine in supraclavicular nerve block, paravertebral nerve block and femoral nerve block has shortened the onset times of both sensory and motor blocks and significantly prolonged their durations, Dexmedetomidine had also the added effect of sedation with minimal side effects, which makes it a beneficial adjuvant to local anesthetics in peripheral nerve blocks, Addition of dexmedetomidine to bupivacaine prolonged the postoperative analgesia with subsequent consumption of less amount of analgesics and The use of ultrasonography in performing nerve blocks significantly reduced the incidence of complications such as pneumothorax or intra-arterial injection and hence, lowered the incidence of systemic toxicity of local anesthetics).

scholarly journals SURGERIES OF LOWER LIMB UNDER COMBINED FEMORAL AND SCIATIC NERVE BLOCK

2019 ◽  
Vol 3 (8) ◽  
Author(s):  
Dr. Pawan Kumar Agrawal ◽  
Dr. Anil Kumar Gupta
Keyword(s):  
Sciatic Nerve ◽  
Nerve Block ◽  
Lower Limb ◽  
Femoral Nerve Block ◽  
Femoral Nerve ◽  
Total Duration ◽  
Sciatic Nerve Block ◽  
Nerve Blocks ◽  
Group A ◽  
Group B

INTRODUCTION:  Peripheral nerve blocks (PNB) can provide surgical anesthesia with better cardiorespiratory stability and is the best option for life-saving procedures  where both general and central neuraxialanesthesia are risky, and no fasting, , or preoperative optimization is required. One of the most useful anesthetic technique is the combination of sciatic and femoral nerve block (3:1) for lower limb surgery. Peripheral nerve blocks are generally suitable for lower limb surgeries because of the peripheral location and the potential to block pain pathways at multiple levels. Also PNBs avoid hemodynamic instability and, facilitate postoperative pain management, and assure a timely discharge of the patient. MATERIAL AND METHODS: In this prospective observational study 50 patients of 22 to 67 years age group of both sexes were included who were posted for lower limb surgeries. Patients were randomly divided into two groups of 25 each. In Group A: 20 ml of 0.5% ropivacaine for femoral nerve block and 20 ml of 0.5% ropivacaine for sciatic nerve block was given to the patients. In group B: 20 ml of 0.5% ropivacaine plus 25 µg fentanyl for femoral nerve block and 20 ml of 0.5% ropivacaine plus fentanyl 25 µg for sciatic nerve block was given. Visual analog scale (VAS) with 0 – 10 cm line was used to see the level of anesthesia in the postoperative period and interpreted as “0” means “no pain” and mark “10” means “severe pain.” Pain score was assessed every 30 min during surgery. If pain is experienced during surgery injection ketamine 0.5 mg/kg intravenously. RESULTS: This study was carried out on 50 patients divided into two groups of 25 each of age group of 22 to 67 years posted for lower limb surgeries. In group A mean age of the patients was 43.78± 12.47and in group B it was 42.33± 13.29. Out of total 25 patients operated in group A 21 (84%) were male and 4 (16%) female, while in group B male and female were 22 (88%) and 3 (12%) respectively. Mean onset of sensory block (Minutes) in group A and Group B was 11.94 ± 3.54 and 12.19 ± 2.67 respectively. Mean onset of motor block in group A was 17.59 ±3.47 minutes and in group B was17.87± 2.78 minutes. Total duration of sensory block in group A was 13.96 ± 0.27 hours and in group B 13.05 ± 0.98 hours. Total duration of motor block in group A was11.58 ± 1.56 hours and in group B12.88 ± 0.96 hours. VAS score was 0 till 8 hours of the study period then it started increasing in both the groups. Patients demanded the first dose of rescue analgesia at 16th hour.  CONCLUSION: Combined femoral-sciatic nerve block is one of the most useful anesthetic procedures and can be used without any major complications, it can also be used in critically ill patients.

Analgesia and anaesthesia

2020 ◽  
pp. 281-327
Author(s):  
Jonathan P. Wyatt ◽  
Robert G. Taylor ◽  
Kerstin de Wit ◽  
Emily J. Hotton ◽  
Robin J. Illingworth ◽  
...  
Keyword(s):  
Emergency Department ◽  
Nerve Block ◽  
Local Anaesthetic ◽  
Local Anaesthesia ◽  
Femoral Nerve Block ◽  
Rapid Sequence Induction ◽  
Femoral Nerve ◽  
General Anaesthetic ◽  
Intravenous Sedation ◽  
Nerve Blocks

This chapter in the Oxford Handbook of Emergency Medicine investigates analgesia and anaesthesia in the emergency department (ED). It looks at options for relieving pain, such as the analgesics aspirin, paracetamol, non-steroidal anti-inflammatory drugs (NSAIDs), morphine and other opioids, Entonox®, and ketamine, and explores analgesia for trauma and other specific situations. It discusses local anaesthesia (LA) and local anaesthetic toxicity, including use of adrenaline (epinephrine) and general principles of local anaesthesia. It explores blocks such as Bier’s block, local anaesthetic nerve blocks, intercostal nerve block, digital nerve block, median and ulnar nerve blocks, radial nerve block at the wrist, dental anaesthesia, nerve blocks of the forehead and ear, fascia iliaca compartment block, femoral nerve block, and nerve blocks at the ankle. It examines sedation, including drugs for intravenous sedation and sedation in children, and discusses general anaesthesia in the emergency department, emergency anaesthesia and rapid sequence induction, difficult intubation, and general anaesthetic drugs.

551. Ultra-Sound Femoral Nerve Block Combined With Continuous Sciatic Nerve Block for Lower Limb Arterial Bypass Surgery

2008 ◽  
Vol 33 (Suppl 1) ◽  
pp. e95.2-e95
Author(s):  
M. Giardina ◽  
D. Zampaglione ◽  
A. Versaci ◽  
D. C. Risitano ◽  
A. Noto ◽  
...  
Keyword(s):  
Sciatic Nerve ◽  
Nerve Block ◽  
Lower Limb ◽  
Bypass Surgery ◽  
Femoral Nerve Block ◽  
Femoral Nerve ◽  
Sciatic Nerve Block ◽  
Ultra Sound ◽  
Arterial Bypass ◽  
Arterial Bypass Surgery

Comparison of Local Infiltration of Analgesia and Sciatic Nerve Block in Addition to Femoral Nerve Block for Total Knee Arthroplasty

2014 ◽  
Vol 29 (12) ◽  
pp. 2462-2467 ◽  
Author(s):  
Hidenori Tanikawa ◽  
Tomoyuki Sato ◽  
Mari Nagafuchi ◽  
Kentaro Takeda ◽  
Junya Oshida ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Sciatic Nerve ◽  
Nerve Block ◽  
Knee Arthroplasty ◽  
Femoral Nerve Block ◽  
Femoral Nerve ◽  
Sciatic Nerve Block ◽  
Local Infiltration ◽  
Total Knee ◽  
Local Infiltration Of Analgesia
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