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KMID : 0385920210320040353
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Journal of the Korean Society of Emergency Medicine
2021 Volume.32 No. 4 p.353 ~ p.361
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Clinical features of acute Phytolacca poisoning and factors associated with severe poisoning
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Shin Dong-O
Lee Jae-Baek
Jin Young-Ho
Jeong Tae-Oh
Kim So-Eun
Oh Tae-Hwan
Lee Jeong-Moon
Yoon Jae-Chol
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Abstract
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Objective: This study evaluated the clinical features of acute Phytolacca poisoning and investigated the prognostic factors associated with severe poisoning.
Methods: This is a retrospective observational study using the data of patients presenting with acute Phytolacca poisoning.
Demographic data, toxicological data, vital signs, laboratory data, and electrocardiographic data were collected.
Study patients were divided into mild and severe poisoning patients. After a univariate analysis, binary logistic regression analysis, which used ‘severe poisoning’ as a dependent variable, was performed to figure out the independent variables.
In addition, the area under the curve and the cut-off value of independent variables were suggested by using receiver operating characteristics analysis.
Results: Most poisonings (80.5%) occurred in winter and spring. Most patients (98.4%) ingested the root of Phytolacca.
It took 2 hours from ingestion to the beginning of the symptoms (interquartile range, 1.0-3.0) which included nausea/vomiting (98.4%), abdominal pain (58.6%), or diarrhea (53.1%). Severe poisoning developed in 21 patients (16.4%). For prediction of severe poisoning, the adjusted odds ratio of time from ingestion to the onset of symptoms was 0.18 (95% confidence interval [CI], 0.05-0.61) and that of the amount of ingestion was 1.42 (95% CI, 0.99-2.03). The area under the curve of time from ingestion to the onset of symptoms (≤1 hour) was 0.81 (95% CI, 0.73-0.88) and that of the amount of ingestion (>1.5 knuckles) was 0.75 (95% CI, 0.65-0.83).
Conclusion: Acute Phytolacca poisoning has clinical features of acute enterocolitis. Severe poisoning could develop especially in patients with a rapid onset of symptoms (≤1 hour) and ingesting over 1.5 knuckles.
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KEYWORD
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Phytolacca, Enterocolitis, Prognosis
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