Peripheral polyneuropathy after acute methanol poisoning: Six-year prospective cohort study

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F20%3A00524202" target="_blank" >RIV/61388955:_____/20:00524202 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11110/20:10412915 RIV/00216208:11120/20:43920142 RIV/00064190:_____/20:N0000055 RIV/00064165:_____/20:10412915

Result on the web

<a href="http://hdl.handle.net/11104/0308584" target="_blank" >http://hdl.handle.net/11104/0308584</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.neuro.2020.04.010" target="_blank" >10.1016/j.neuro.2020.04.010</a>

Result language

angličtina

Original language name

Peripheral polyneuropathy after acute methanol poisoning: Six-year prospective cohort study

Original language description

Methanol is a widely used industrial short-chain aliphatic alcohol with known neurotoxic properties. Mass poisoning outbreaks due to the consumption of methanol-adulterated alcoholic drinks present a challenge to healthcare providers due to the high mortality and serious central nervous system (CNS) damage in survivors. However, the impact of methanol exposure on the peripheral nervous system is unknown. Objectives: To investigate the role of acute methanol exposure in the development of peripheral polyneuropathy (PNP) during the years following discharge from the hospital. Methods: A total of 55 patients with confirmed methanol poisoning (mean age of 47.9 ± 3.6 years, 9 females) were examined 4 times within a 6-year prospective longitudinal cohort study. The program included neurological and electromyographic examinations, visual evoked potentials, ocular examinations with retinal nerve fibre layer thickness measurements, brain magnetic resonance imaging, and a series of biochemical and toxicological tests. Results: PNP was observed in 20/55 (36 %) patients, which, in most of the cases, was mild axonal sensorimotor neuropathy. In 8/55 (15 %) patients, worsening of electromyographic findings was registered during the follow-up period, including 5 cases with newly diagnosed PNP and 3 cases of PNP progression. In one subject, complete reversal of PNP was registered after cessation of alcohol intake. The patients with PNP were significantly older (57.3 ± 5.3 versus 42.5 ± 3.9 years, p < 0.001), with higher blood glucose (5.93 ± 0.97 versus 4.81 ± 0.32 mmol/L, p = 0.035) and lower vitamin B1 (45.5 ± 7.4 versus 57.5 ± 5.2 ug/L, p = 0.015) concentrations. The number of chronic alcohol abusers was significantly higher in the PNP group (17/20 versus 20/35, p = 0.034). No associations between PNP prevalence/ dynamics and acute parameters of poisoning severity, arterial blood pH (7.26 ± 0.07 with PNP versus 7.18 ± 0.09 without PNP, p = 0.150), or serum methanol (1320.0 ± 700.0 with PNP versus 1430.0 ± 510.0 mg/L without PNP, p = 0.813) and ethanol (460.0 ± 560.0 with PNP versus 340.0 ± 230.0 mg/L without PNP, p = 0.675) concentrations at admission were found. No difference in the number of patients with visual (9/20 with PNP versus 12/35 patients without PNP, p = 0.431) and CNS sequelae (9/20 with PNP versus 15/35 patients without PNP, p = 0.877) of poisoning was present. Discussion: Despite the relatively high number of PNP cases, no association was found between the severity of acute methanol poisoning and the prevalence of PNP and its dynamics during six years of observation. We did not find an association between methanol-induced visual/ brain damage and the prevalence of PNP in survivors of poisoning. A high prevalence of PNP and its progression might be attributed to other causes, mainly a history of chronic alcohol abuse and insufficiently treated diabetes mellitus. Our results highlight the importance of complete cessation of alcohol consumption and better control of glycaemia in diabetic patients in the prevention and treatment of peripheral PNP.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10403 - Physical chemistry

Project

<a href="/en/project/NV16-27075A" target="_blank" >NV16-27075A: NEURODEGENERATIVE PROCESSES IN PATIENTS EXPOSED TO METHANOL: PROSPECTIVE STUDY AFTER CZECH MASS METHANOL POISONING OUTBREAK IN 2012</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Neurotoxicology

ISSN

0161-813X

e-ISSN

—

Volume of the periodical

79

Issue of the periodical within the volume

JUL 2020

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

8

Pages from-to

67-74

UT code for WoS article

000549312800008

EID of the result in the Scopus database

2-s2.0-85084241412