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Organophosphate poisoning at Chris Hani Baragwanath Academic Hospital 2012 - 2015
J Bruins1, C N Menezes2, M L Wong3
1Division of General Medicine, Department of Internal Medicine, Chris Hani Baragwanath Academic Hospital and Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
Insights
Organophosphate poisoning is common, with pinpoint pupils and low enzyme levels observed in patients. This study highlights the need for further research into its impact on healthcare resources.
Area of Science:
- Toxicology
- Emergency Medicine
- Clinical Biochemistry
Background:
- Acute organophosphate poisoning admissions are frequent at Chris Hani Baragwanath Academic Hospital (CHBAH).
- Limited literature exists on the characteristics of these patient admissions.
- This study addresses the gap in understanding organophosphate poisoning cases at CHBAH.
Purpose of the Study:
- To characterize the demographic profile of adult patients admitted with organophosphate poisoning.
- To identify common clinical and biochemical findings in these patients.
- To evaluate the utilization of prognostic tools like APACHE II, management strategies, and patient outcomes.
Main Methods:
- Retrospective analysis of 129 patient records from 2012-2015 at CHBAH.
- Data collection included demographics, clinical presentations, biochemical markers, and outcomes.
- Evaluation of APACHE II score utility and assessment of acetylcholinesterase enzyme inhibition levels.
Main Results:
- Median age was 30 years, with 68.2% males; pinpoint pupils (96.1%) and low Glasgow Coma Score (85.3%) were prevalent.
- Most patients required ventilator support (99.2%), with a 5.4% overall mortality rate.
- Intravenous atropine was the standard treatment; APACHE II score was underutilized.
Conclusions:
- Organophosphate compound use is frequent in the studied region.
- Findings emphasize the significant burden of organophosphate poisoning on healthcare resources.
- Further nationwide studies are recommended to understand the full scope of the problem.
Background:
Patients with acute organophosphate poisoning are frequently admitted to the Chris Hani Baragwanath Academic Hospital (CHBAH), and yet there is little literature assessing aspects of these admissions.
Objectives:
To determine the demographic profile, common clinical and biochemical findings, use of prognostic tools (APACHE II), management and outcome of adult patients admitted to the high care area (HCA) and intensive care unit (ICU) at CHBAH.
Methods:
A retrospective data analysis of hospital records for 129 patients admitted to the HCA and ICU at CHBAH for the period 2012 - 2015 was undertaken. The demographic profiles and clinical and biochemical presentations of the patients were determined, together with their subsequent management and outcomes. Use of the APACHE II score as a prognostic tool was evaluated, and the average enzyme inhibition levels demonstrated by the patients was assessed.
Results:
The median age of the group was 30 years, with 68.2% being male. The most common clinical finding was pinpoint pupils (96.1%) followed by a Glasgow Coma Score <13 (85.3%), fasciculations (60.5%), diarrhoea (37.2%) and seizures (10.1%). Admissions to the HCA (52.7%) predominated, with the majority of patients requiring ventilator support (99.2%). The mean (SD) duration of stay was 6.8 days for ICU (6.4) and 3.7 days for HCA (5.2). The overall mortality rate was 5.4%. Standard treatment was intravenous atropine. Blood results reflected low levels of acetylcholinesterase enzyme activity. The APACHE II score was underutilised.
Conclusion:
The findings of the study underscore the frequent use of organophosphate compounds in our area. Further studies across the country will help to highlight the magnitude of the consequences of organophosphate poisoning, as well as the burden imposed on limited healthcare resources.
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