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Patients with centipede bites presenting to a university hospital in Bangkok: a 10-year retrospective study
Supa Niruntarai1, Kanlayakorn Rueanpingwang2, Rittirak Othong1
1Department of Emergency Medicine, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Dusit, Bangkok, Thailand.
Introduction:
Centipede envenomation occurs commonly in tropical and subtropical countries. In most cases, centipede envenomation causes benign clinical manifestations. Serious complications are reported occasionally. Clinical studies regarding centipede envenomation are limited to case reports and case series. This study aimed to determine the prevalence and clinical characteristics of centipede bites in Bangkok, Thailand.
Methods:
This was a retrospective medical record review study. We included patients who were clearly envenomated by a centipede presenting to the emergency department of a tertiary university hospital in Bangkok from January 1, 2006, to December 31, 2015. Data were collected on demographics, details of the exposure, signs, symptoms, treatment, and complications of envenomation.
Results:
A total of 245 cases were included. The prevalence of centipede bite was 0.0367%. The majority were female (56.7%). The median age was 34.6 years (range: 1 month to 90 years). The number of envenomations was highest from October through December. Feet (38.3%) and hands (19.1%) were the parts of the body most often envenomated. Local effects were common with 99.5% of patients having localized pain and 87% having local swelling at the bite site. In terms of systemic effects, urticarial rash (5.7%) and fever (4.1%) were most frequently observed. Twelve cases (5%) had clinical pictures compatible with anaphylaxis. For pain management, all patients who had pain received analgesic drugs, while 29.7% were injected with local anesthesia. Antibiotics, antihistamines, and steroids were prescribed in 53.9%, 20.4%, and 10.2% of cases, respectively. No deaths occurred in this study.
Conclusions:
Even though the location of our hospital is in a metropolitan city in Thailand, there were centipede bites every month, especially during the last three months of each year. Nearly all patients had local effects. In contrast, serious complications such as anaphylaxis and systemic infection only occurred occasionally.
