E-ISSN 2231-3206 | ISSN 2320-4672
 

Original Research 


F-wave latencies of median nerve in smokers from Southern Rajasthan: A case–control study

Suman Sharma, Naren Kurmi, Manjinder Kaur.

Abstract
Background: Tobacco and its byproducts have hazardous effect on multiple organs of our body including nerves. Long-term exposure to the chemicals found in tobacco smoke results in demyelination of nerve fibers affecting the nerve conduction. F-wave study is a reliable tool to assess the proximal segment of peripheral nerve and has not been studied much.

Aim and Objective: The aim of the study is to measure F-wave latencies in nerve conduction studies in the median nerve in smokers (S) and nonsmokers (NS).

Materials and Methods: The present study recruited normal healthy participants (18–50 years) divided in two groups, namely Group S and Group NS. It was designed to be a cross-sectional case–control study. Median nerve was examined for motor and sensory nerve conduction velocities. The detailed late responses, for example, F-wave latencies including F-minimum latency, F-maximum latency, and F-mean latency were studied, and data are analyzed using descriptive statistics and Mann–Whitney test.

Result: A statistically significant increase (P < 0.0001) was found in all F-wave latencies in S as compared to NS.

Conclusion: The present study suggested that long-term exposure to tobacco results in compromised nerve conduction velocities and increases latencies in peripheral nerves. The increased latencies could be attributed to peripheral demyelination or radiculopathy.

Key words: Nerve Conduction Study; Smoking; Median Nerve; Late Responses e.g., F-wave


 
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How to Cite this Article
Pubmed Style

Sharma S, Kurmi N, Kaur M. F-wave latencies of median nerve in smokers from Southern Rajasthan: A case–control study. Natl J Physiol Pharm Pharmacol. 2019; 9(10): 983-986. doi:10.5455/njppp.2019.9.0622417072019


Web Style

Sharma S, Kurmi N, Kaur M. F-wave latencies of median nerve in smokers from Southern Rajasthan: A case–control study. http://www.njppp.com/?mno=53777 [Access: February 16, 2020]. doi:10.5455/njppp.2019.9.0622417072019


AMA (American Medical Association) Style

Sharma S, Kurmi N, Kaur M. F-wave latencies of median nerve in smokers from Southern Rajasthan: A case–control study. Natl J Physiol Pharm Pharmacol. 2019; 9(10): 983-986. doi:10.5455/njppp.2019.9.0622417072019



Vancouver/ICMJE Style

Sharma S, Kurmi N, Kaur M. F-wave latencies of median nerve in smokers from Southern Rajasthan: A case–control study. Natl J Physiol Pharm Pharmacol. (2019), [cited February 16, 2020]; 9(10): 983-986. doi:10.5455/njppp.2019.9.0622417072019



Harvard Style

Sharma, S., Kurmi, . N. & Kaur, . M. (2019) F-wave latencies of median nerve in smokers from Southern Rajasthan: A case–control study. Natl J Physiol Pharm Pharmacol, 9 (10), 983-986. doi:10.5455/njppp.2019.9.0622417072019



Turabian Style

Sharma, Suman, Naren Kurmi, and Manjinder Kaur. 2019. F-wave latencies of median nerve in smokers from Southern Rajasthan: A case–control study. National Journal of Physiology, Pharmacy and Pharmacology, 9 (10), 983-986. doi:10.5455/njppp.2019.9.0622417072019



Chicago Style

Sharma, Suman, Naren Kurmi, and Manjinder Kaur. "F-wave latencies of median nerve in smokers from Southern Rajasthan: A case–control study." National Journal of Physiology, Pharmacy and Pharmacology 9 (2019), 983-986. doi:10.5455/njppp.2019.9.0622417072019



MLA (The Modern Language Association) Style

Sharma, Suman, Naren Kurmi, and Manjinder Kaur. "F-wave latencies of median nerve in smokers from Southern Rajasthan: A case–control study." National Journal of Physiology, Pharmacy and Pharmacology 9.10 (2019), 983-986. Print. doi:10.5455/njppp.2019.9.0622417072019



APA (American Psychological Association) Style

Sharma, S., Kurmi, . N. & Kaur, . M. (2019) F-wave latencies of median nerve in smokers from Southern Rajasthan: A case–control study. National Journal of Physiology, Pharmacy and Pharmacology, 9 (10), 983-986. doi:10.5455/njppp.2019.9.0622417072019





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