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Incidence of Hemidiaphragmatic Paralysis After Ultrasound Guided Low Dose Interscalene Brachial Plexus Block

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Vol 5 | Issue 1 | January-June 2024 | Page 18-23| Tanvir Samra, Pankaj Kushal, Vikas Saini, Sameer Sethi, Rahul Kathuria, Anjuman Chander

DOI: https://doi.org/10.13107/ijra.2024.v05.i01.086

Authors: Tanvir Samra [1], Pankaj Kushal [1], Vikas Saini [1], Sameer Sethi [1], Rahul Kathuria [2], Anjuman Chander [1]

 

[1] Department of Anaesthesia, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
[2] Department of Anaesthesia, Park Hospital, Ambala, Haryana, India.

Address of Correspondence

Dr. Anjuman Chander,
Department of Anaesthesia, Post Graduate Institute of Medical Education and Research, Sector 12, Chandigarh 160012, India
E-mail: Achander08@gmail.com

Abstract

Background and Aims: Hemidiaphragmatic paralysis is a complication of single shot and continuous interscalene brachial plexus block that can be minimised by ultrasound guided extra fascial catheter placements and by limiting the amount of local anaesthetic administered. In this study, we report incidence of hemidiaphragmatic paralysis with patient-controlled infusion of low volume of ropivacaine after ultrasound guided low dose interscalene brachial plexus block (LD-ISB).
Methods: Patients aged 18-65 years undergoing surgery for shoulder dislocation or proximal humerus fracture were recruited and administered general anaesthesia. Before extubation ultrasound guided LD-ISB (10 ml of 0.5% ropivacaine) was administered and a catheter tunneled so that patient controlled interscalene analgesia (PCIA) could be given with low volume ropivacaine. PCIA was initiated after four hours in the post operative recovery to deliver background infusion of 2 ml/h, bolus of 5ml (0.2% of ropivacaine) with lockout interval of 30 minutes for a total duration of 24 hours. Incidence of hemidiaphragmatic paralysis was recorded at extubation using M-mode ultrasonography. Before start of PCIA i.e. at 4 hours and after start of PCIA i.e. 6,12 and 24 h after extubation.
Results: PCIA after LD-ISB was administered to 29 patients. Subsequently, two patients were excluded due to catheter dislodgement. The incidence of complete and partial paresis of diaphragm after extubation was 85% and 3.7% with LD-ISB respectively but was resolved before start of PCIA i.e., at 4 hours. Thus, at time of commencement of PCIA all patients had normal diaphragmatic excursions and subsequently at 6,12 and 24 h no paresis/paralysis was reported in patients administered only the background infusion or an additional single bolus dose of ropivacaine with the background infusion. Partial paresis was noted in all patients in which two bolus doses/h were administered. All patients with paresis had diaphragmatic excursion normalised in the next recording made at 4 hours and no complication was reported in any patient. VAS (Visual Analog Scale) was below 3 at all time points.
Conclusion: Partial/complete paresis after a single shot injection of 10 ml of 0.5% ropivacaine resolves in 4 hours. PCIA initiated after it for subsequent 20 hours with a single bolus dose of 5ml of 0.2% ropivacaine and background infusion at 2 ml/h does not cause phrenic paresis. Partial paresis is reported with two bolus doses/h, but it is clinically asymptomatic. Thus, the above dose regimes are safe and effective in managing post-operative pain.
Keywords: Interscalene block, Diaphragmatic paresis, Ropivacaine, continuous infusion, Analgesic efficacy

References

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How to Cite this Article: Samra T, Kushal P, Saini V, Sethi S, Kathuria R, Chander A | Incidence of Hemidiaphragmatic Paralysis After Ultrasound Guided Low Dose Interscalene Brachial Plexus Block | International Journal of Regional Anaesthesia | Januar y-June 2024; 5(1): 18-23 | DOI: https://doi.org/10.13107/ijra.2024.v05.i01.86

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Comparative Evaluation of Varying Volumes of Local Anaesthetic Solution in Pericapsular Nerve Group Block (PENG) on Dynamic Pain Relief after Hip Surgeries

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Vol 4 | Issue 1 | January-June 2023 | Page 20-25 | Megha Sood, Richa Jain, Gurpreeti Kaur, Amol Rattan, Mirley Rupinder Kaur, Rajnish Garg, Anju Grewal

DOI: https://doi.org/10.13107/ijra.2023.v04i01.070

Authors: Megha Sood [1], Richa Jain [1], Gurpreeti Kaur [1], Amol Rattan [2], Mirley Rupinder Kaur [1], Rajnish Garg [1], Anju Grewal [1]

[1] Department of Anaesthesiology, Dayanand Medical College & Hospital, Ludhiana, Punjab, India.
[2] Department of Orthopaedics, Dayanand Medical College & Hospital, Ludhiana, Punjab, India.

Address of Correspondence
Dr. Richa Jain,
Department of Anaesthesiology, Dayanand Medical College & Hospital, Ludhiana, Punjab, India.
E-mail: richajain2105@gmail.com

Background: The peri-capsular nerve group block (PENG) has reported the ability to decrease pain in hip fractures and minimize the use of opioids for postoperative analgesia. We conducted this trial to assess the efficacy of varying volumes of local anesthetic solution in PENG block in alleviating post-operative pain at rest and on dynamic hip movement after hip surgeries.
Material & Methods: A prospective, double-blinded interventional trial was conducted on 70 adult ASA I-III patients undergoing hip surgeries under general anesthesia. Enrolled subjects were divided into two groups A and B to receive either 10ml of 0.2% ropivacaine or 20ml of 0.2% ropivacaine respectively in an ultrasound-guided (USG) PENG block after administration of general anesthesia. The primary outcome was the duration of analgesia. VAS scores (at rest and on dynamic hip movement), the cumulative amount of rescue analgesic needed in the 24-hour post-operative period and patient satisfaction scores were secondary outcomes. Data thus collected were statistically analyzed.
Results: Mean duration of analgesia was significantly prolonged in group B (12.24±5.14 hours) as compared to group A (2.77±1.06 hours). There were statistically significant decreased VAS scores at rest and on dynamic hip movement in group B. Median total rescue analgesic consumption in 24 hours and patient satisfaction score was significantly reduced in group B than in group A (p=0.001).
Conclusion: In PENG block, 20 ml of 0.2% ropivacaine provides a significantly longer duration of analgesia, a statistically significant reduction in pain scores on rest and dynamic hip movement with substantially decreased 24-hour total rescue analgesic consumption, and improved patient satisfaction in patients undergoing hip surgeries.
Keywords: Pericapsular nerve group block (PENG), Hip surgeries, Ropivacaine, Visual analogue scale (VAS)

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How to Cite this Article: Sood M, Jain R, Kaur G, Rattan A, Kaur MR, Garg R, Grewal A | Comparative Evaluation of Varying Volumes of Local Anaesthetic Solution in Pericapsular Nerve Group Block(PENG) on Dynamic Pain Relief after Hip Surgeries | International Journal of Regional Anaesthesia | January-June 2023; 4(1): 20-25 | DOI: https://doi.org/10.13107/ijra.2023.v04i01.070

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