Evidence map›Paper›PMID 40825532›Full record

ArticleJournal of Yeungnam medical science2025

Predictive assessment with outcomes of phrenic nerve study in Guillain-Barré syndrome: a prospective study.

Rajarshi Chakraborty, Rajesh Verma, Sarvesh Kumar Chaudhary, Harish Nigam, Ankit Khetan, Swati Shakya, Pushpita Barman, Aparajita Chakraborty

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Article in Journal of Yeungnam medical science, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

8 authors.

Rajarshi ChakrabortyDepartment of Neurology, King George's Medical University, Lucknow, India.
Rajesh VermaDepartment of Neurology, King George's Medical University, Lucknow, India.
Sarvesh Kumar ChaudharyDepartment of Neurology, King George's Medical University, Lucknow, India.
Harish NigamDepartment of Neurology, King George's Medical University, Lucknow, India.
Ankit KhetanDepartment of Neurology, King George's Medical University, Lucknow, India.
Swati ShakyaDepartment of Obstetrics and Gynaecology, Lala Lajpat Rai Memorial Medical College, Meerut, India.
Pushpita BarmanDepartment of Community Medicine, Silchar Medical College, Silchar, India.
Aparajita ChakrabortyDepartment of Physiology, Silchar Medical College, Silchar, India.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGuillain-Barré syndrome (GBS) is an acute acquired autoimmune inflammatory disorder of the peripheral nerves and roots. Respiratory insufficiency is an important predictor of a poor prognosis in patients with GBS. Phrenic nerve assessment is an area of interest in GBS with respiratory failure. We aimed to analyze the characteristics of the phrenic nerve conduction study (NCS) in GBS and assess its value in predicting respiratory failure requiring ventilatory support, along with outcome assessment at 6 months as per the Hughes score.

methodsA total of 135 patients with GBS admitted to our hospital over 3 years were thoroughly evaluated by clinical examination, blood laboratory tests, and phrenic NCS.

resultsPhrenic NCS abnormality was observed in 48 patients (35.6%) with statistically significant increases in phrenic sum compound muscle action potential (CMAP) latency (18.91±7.82 ms) and sum CMAP duration (44.65±6.84 ms), along with reduced sum CMAP amplitude (0.3246±0.132 mV) and sum CMAP area (3.56±2.62 mV·ms) occurring in those requiring ventilatory assistance. The sensitivity, specificity, positive and negative predictive values, and positive and negative likelihood ratios of the phrenic NCS for predicting respiratory failure in patients with GBS were 90.7%, 90.2%, 81.3%, 95.4%, 9.27, and 0.10, respectively. The results showed a statistically significant association between abnormal initial phrenic NCS scores and outcomes at 6 months.

conclusionPhrenic NCS can predict respiratory failure requiring ventilator assistance in patients with GBS. Phrenic NCS can be incorporated into routine NCS protocols to predict impending respiratory failure in patients with GBS.

Indexed as

Guillain-Barre syndromeNerve conductionOutcomePhrenic nerve

Identifiers

PMID40825532
PMCPMC12628677

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