PMID- 31298045 OWN - NLM STAT- MEDLINE DCOM- 20201013 LR - 20201013 IS - 1556-9519 (Electronic) IS - 1556-3650 (Linking) VI - 58 IP - 4 DP - 2020 Apr TI - The impact of co-morbidities on a 6-year survival after methanol mass poisoning outbreak: possible role of metabolic formaldehyde. PG - 241-253 LID - 10.1080/15563650.2019.1637525 [doi] AB - Context: The influence of co-morbid conditions on the outcome of acute methanol poisoning in mass poisoning outbreaks is not known.Objective: The objective of this is to study the impact of burden of co-morbidities, complications, and methanol-induced brain lesions on hospital, follow-up, and total mortality.Methods: All patients hospitalized with methanol poisoning during a mass poisoning outbreak were followed in a prospective cohort study until death or final follow-up after 6 years. The age-adjusted Charlson co-morbidity index (ACCI) score was calculated for each patient. A multivariate Cox regression model was used to calculate the adjusted hazards ratio (HR) for death. The survival was modeled using the Kaplan-Meier method.Results: Of 108 patients (mean age with SD 50.9 +/- 2.6 years), 24 (54.4 +/- 5.9 years) died during hospitalization (mean survival with SD 8 +/- 4 days) and 84 (49.9 +/- 3.0 years; p = .159) were discharged, including 27 with methanol-induced brain lesions. Of the discharged patients, 15 (56.3 +/- 6.8 years) died during the follow-up (mean survival 37 +/- 11 months) and 69 (48.5 +/- 3.3 years; p = .044) survived. The hospital mortality was 22%, the follow-up mortality was 18%; the total mortality was 36%. Cardiac/respiratory arrest, acute respiratory failure, multiorgan failure syndrome, and arterial hypotension increased the HR for hospital and total (but not follow-up) mortality after adjustment for age, sex, and arterial pH (all p < .05). All patients who died in the hospital had at least one complication. A higher ACCI score was associated with greater total mortality (HR 1.22; 1.00-1.48 95% CI; p = .046). Of those who died, 35 (90%) had a moderate-to-high ACCI. The Kaplan-Meier curve demonstrated that patients with a high ACCI had greater follow-up mortality compared to ones with low (p = .027) or moderate (p = .020) scores. For the patients who died during follow-up, cancers of different localizations were responsible for 7/15 (47%) of the deaths.Conclusions: The character and number of complications affected hospital but not follow-up mortality, while the burden of co-morbidities affected follow-up mortality. Methanol-induced brain lesions did not affect follow-up mortality. Relatively high cancer mortality rate may be associated with acute exposure to metabolic formaldehyde produced by methanol oxidation. FAU - Zakharov, Sergey AU - Zakharov S AD - Department of Occupational Medicine, First Faculty of Medicine, Charles University, Prague, Czech Republic. AD - Toxicological Information Centre, General University Hospital, Prague, Czech Republic. FAU - Rulisek, Jan AU - Rulisek J AD - Department of Anesthesia and Intensive Care, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic. FAU - Hlusicka, Jiri AU - Hlusicka J AD - Department of Occupational Medicine, First Faculty of Medicine, Charles University, Prague, Czech Republic. AD - Toxicological Information Centre, General University Hospital, Prague, Czech Republic. FAU - Kotikova, Katerina AU - Kotikova K AD - Department of Occupational Medicine, First Faculty of Medicine, Charles University, Prague, Czech Republic. AD - Toxicological Information Centre, General University Hospital, Prague, Czech Republic. FAU - Navratil, Tomas AU - Navratil T AD - Toxicological Information Centre, General University Hospital, Prague, Czech Republic. AD - Department of Biomimetic Electrochemistry, J. Heyrovsky Institute of Physical Chemistry of the Czech Academy of Sciences, Prague, Czech Republic. FAU - Komarc, Martin AU - Komarc M AD - Department of Methodology, Faculty of Physical Education and Sport, Charles University, Prague, Czech Republic. FAU - Vaneckova, Manuela AU - Vaneckova M AD - Department of Radiology, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic. FAU - Seidl, Zdenek AU - Seidl Z AD - Department of Radiology, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic. FAU - Diblik, Pavel AU - Diblik P AD - Department of Ophthalmology, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic. FAU - Bydzovsky, Jan AU - Bydzovsky J AD - Department of Ophthalmology, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic. FAU - Heissigerova, Jarmila AU - Heissigerova J AD - Department of Ophthalmology, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic. FAU - Zogala, David AU - Zogala D AD - Institute of Nuclear Medicine, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic. FAU - Hubacek, Jaroslav A AU - Hubacek JA AD - Center for Experimental Medicine, Institute for Clinical and Experimental Medicine, Prague, Czech Republic. FAU - Miovsky, Michal AU - Miovsky M AD - Department of Addictology, First Faculty of Medicine, Charles University in Prague and General University Hospital, Prague, Czech Republic. FAU - Sejvl, Jaroslav AU - Sejvl J AD - Department of Addictology, First Faculty of Medicine, Charles University in Prague and General University Hospital, Prague, Czech Republic. FAU - Vojtova, Lucie AU - Vojtova L AD - Institute of Clinical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic. FAU - Pelclova, Daniela AU - Pelclova D AD - Department of Occupational Medicine, First Faculty of Medicine, Charles University, Prague, Czech Republic. AD - Toxicological Information Centre, General University Hospital, Prague, Czech Republic. LA - eng PT - Journal Article DEP - 20190712 PL - England TA - Clin Toxicol (Phila) JT - Clinical toxicology (Philadelphia, Pa.) JID - 101241654 RN - 1HG84L3525 (Formaldehyde) RN - Y4S76JWI15 (Methanol) SB - IM MH - Adolescent MH - Adult MH - Cohort Studies MH - Disease Outbreaks/statistics & numerical data MH - Female MH - Follow-Up Studies MH - Formaldehyde/metabolism/*poisoning MH - *Hospital Mortality MH - Hospitalization/*statistics & numerical data MH - Humans MH - Longitudinal Studies MH - Male MH - Methanol/pharmacokinetics/*poisoning MH - Middle Aged MH - Poisoning/epidemiology/*mortality MH - Prospective Studies MH - Risk Factors MH - Survival Rate MH - Young Adult OTO - NOTNLM OT - Acute methanol poisoning OT - co-morbidities OT - complications OT - follow-up mortality OT - formaldehyde OT - hospital mortality OT - prognosis EDAT- 2019/07/13 06:00 MHDA- 2020/10/21 06:00 CRDT- 2019/07/13 06:00 PHST- 2019/07/13 06:00 [pubmed] PHST- 2020/10/21 06:00 [medline] PHST- 2019/07/13 06:00 [entrez] AID - 10.1080/15563650.2019.1637525 [doi] PST - ppublish SO - Clin Toxicol (Phila). 2020 Apr;58(4):241-253. doi: 10.1080/15563650.2019.1637525. Epub 2019 Jul 12.