Evaluation of an Emergency Physician Performed Ultrasound Guided Regional Anesthesia Service in the Emergency Department

Theysinthia Thivya Naidu* a/p Rajendran Naidu, Khirthika R Ramasamy, Gurjeet Singh a/l Harvendhar Sing, Nabil Muhammad Al Kuddoos, Muhamad Syis

Department of Emergency Medicine, Hospital Selayang, Malaysia 68100 Rawang Selangor, Malaysia

*Corresponding Author’s Email: gurjeet.s@live.com

Abstract

Regional anaesthesia (RA) has become a prominent component of multimodal pain management in emergency medicine (EM), and its use has increased rapidly in recent decades. The objective is to improve the effectiveness of ultrasound-guided nerve blocks performed by trained personnel, as a key element of multimodal pain management regimens in the ED.

Keywords: Regional Anaesthesia; Component; Pain Management; Emergency Medicine

Introduction

Regional anaesthesia (RA) has become a prominent component of multimodal pain management in emergency medicine (EM), and its use has increased rapidly in recent decades (Hernandez & de Haan, 2022). The objective is to improve the effectiveness of ultrasound-guided nerve blocks performed by trained personnel, as a key element of multimodal pain management regimens in the ED (Brown et al., 2022).

Methodology

Emergency physicians who have been trained in ultrasound guided regional anesthesia performing the procedure in patients who are in pain especially traumatic injury patient through a one-year period in 2023. Data was collected for all the cases who had regional anesthesia in the emergency department via a standardized data collection sheet to minimize bias. The data from all the cases was then analyzed in each of its components which includes safety profiles, most common blocks, making them as a possible core competency to focus on learning mainly on those techniques, type of medication used, amount of medications needed and the indications to perform a regional block.

Results and Discussion

A total of 16 patients received emergency regional anaesthesia in the above-mentioned period, in Hospital Selayang and none of them had any complications observed, making them a safe procedure (Macfarlane et al., 2020).


A graph with a bar and number

Description automatically generated with medium confidence

Figure 1: Complications of Emergency Regional Anestheisa

In the 16 patients, most commonly used regional blocks are Fasia iliaca and serratus anterior block. Though the types of blocks depend on the indication and the location of interest, making this most common blocks as a part of core competency learning is advised (Blackwell et al., 2021).

Table 1: Types of Nerve Blocks


Type of Blocks

No. of Patients

Percentage

Upper extremities Blocks

Axillary Nerve Blocks

1

6%

Supraclavicular Blocks

2

13%

Lower extremities Blocks

Fascia iliaca block

5

31%

Femoral nerve block

2

13%

Thoracic Nerve Blocks

Interscalene Block

1

6%

Serratus Anterior Block

5

31%



A pie chart with numbers and symbols

Description automatically generated

Figure 2: Types of Nerve Blocks

Below table shows, most commonly used drug, also demonstrating that at low doses, pain relief can be achieved with easily available drug.

Table 2: Types of Medications Used


Type of Drugs

No. of Patients

Percentage

Lignocaine 1%(20mls)

9

56%

Lignocaine 2% (5-10mls)

5

31%

Ropivacaine 0.5%(10-20mls)

2

13%


Lignocaine has rapid onset of action and intermediate duration of efficacy. It has short half-life which reduces the need for ward observations. In cases of overdose, intravenous lipid emulsions can be administered.

A graph with blue and white bars

Description automatically generated

Figure 3: Most Commonly Used Drug

Regional anaesthesia can be widely used such as in cases of trauma for pain management (Albrecht & Chin, 2020) and in cases of respiratory insufficiency due to rib fractures as shown in table below:

Table 2: Indications of Nerve Blocks


Common Indications

No. of Patients

Percentage

Analgesics (Trauma)

7

43%

Respiratory insufficiency with multiple rib fractures)

3

19 %

Pre procedure (wound irrigation/chest tube/CMR)

3

19%

Relatively contraindicated for IV medications (Head injury)

3

19%



A pie chart with different colored circles

Description automatically generated

Figure 4: Indications of Emergency Regional Anaesthesia

Conclusion

Regional Anaesthesiain ED is a valuable, opioid sparing tool in multi-modal pain control with a positive impact, which are safe and effective. Standards of practice should be undertaken together with anaesthesiology to ensure patient access to quality regional anaesthesia in ED.

Conflict of Interest

The authors declare that they have no conflict of interests.

Acknowledgement

The authors would like to thank the Regional Anaesthesia team in Hospital Kuala Lumpur for allowing the emergency medicine specialist to learn and train for competency in regional anaesthesia procedures.

Referrences

Hernandez, N., & de Haan, J. B. (2022). Regional anesthesia for trauma in the emergency department. Current Anesthesiology Reports, 12(2), 240-249. https://doi.org/10.1007/s40140-022- 00531-3

Brown, J. R., Goldsmith, A. J., Lapietra, A., Zeballos, J. L., Vlassakov, K. V., Stone, A. B., ... & Nagdev, A. (2022). Ultrasound-Guided Nerve Blocks: Suggested Procedural Guidelines for Emergency Physicians. POCUS Journal, 7(2), 253. https://doi.org/10.24908%2Fpocus.v7i2.15233

Macfarlane, A. J., Harrop-Griffiths, W., & Pawa, A. (2020). Regional anaesthesia and COVID-19: first choice at last?. British Journal of Anaesthesia, 125(3), 243-247.

https://doi.org/10.1016/j.bja.2020.05.016

Blackwell, R. E., Kushelev, M., Norton, J., Pettit, R., & Vasileff, W. K. (2021). A comparative analysis of the quadratus lumborum block versus femoral nerve and fascia iliaca blocks in hip arthroscopy. Arthroscopy, Sports Medicine, and Rehabilitation, 3(1), e7-e13. https://doi.org/10.1016/j.asmr.2020.08.002

Albrecht, E., & Chin, K. (2020). Advances in regional anaesthesia and acute pain management: a narrative review. Anaesthesia, 75, e101-e110. https://doi.org/10.1111/anae.14868