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Date Published: 21/04/2025
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DOI: https://doi.org/10.51298/vmj.v549i1.13553
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Vol. 549 No. 1 (2025)
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Các bài báo
How to Cite
Lê Quốc, V., Đồng Ngọc, M., Tạ Hồng, N., Phạm Đức, H., & Nguyễn Anh, T. (2025). REFERENCE VALUES AND SOME FACTORS AFFECTING PHRENIC NERVE CONDUCTION STUDY IN ALDULTS AT VIETDUC UNIVERSITY HOSPITAL. Vietnam Medical Journal, 549(1). https://doi.org/10.51298/vmj.v549i1.13553

REFERENCE VALUES AND SOME FACTORS AFFECTING PHRENIC NERVE CONDUCTION STUDY IN ALDULTS AT VIETDUC UNIVERSITY HOSPITAL

Việt Lê Quốc, Minh Đồng Ngọc, Nhung Tạ Hồng, Hiếu Phạm Đức, Tuấn Nguyễn Anh

Main Article Content

Abstract

Phrenic nerve conduction study directly assesses phrenic nerve function. Due to the specificity of phrenic nerve anatomy, respiratory physiology, and diaphragm position, there are still many limitations in phrenic nerve conduction study as well as interpretation of results.. Objectives: Describe the characteristics of phrenic nerve conduction and some  factors affecting. Methods: Cross-sectional descriptive study in adult volunteers  at VietDuc University Hospital from March 2024 to March 2025. Results: The motor response amplitude during insoiration (min/max/mean ± SD) 0.4/1.22/0.8 ± 0.2 mV, p<0.05. The maximum latency during inhalation 7.95 ms. BMI was correlated with stimulation intensity, linear correlation equation: Stimulation amplitude = 0.846 * BMI – 4.513, r=0.64, p< 0.001. Height factor, distance from stimulation to recording may be related to phrenic nerve latency time, p< 0.05. Conclusion: The amplitude of phrenic nerve response differs during inspiration and expiration. BMI correlates with stimulation amplitude, and latency may be influenced by height.

Article Details

Keywords

phrenic nerve, nerve conduction study

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