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Abstract
Aim: To study the epidemiology and outcome of acute kidney injury (AKI) caused by venomous animals.
Methods: A retrospective study of patients admitted at Indira Gandhi Medical College Hospital, Shimla, with AKI due to venomous animals over a period of 15 years (January 2003–December 2017). Medical records were evaluated for patient information on demographic factors, clinical characteristics, complications, and outcome. Outcomes of requirement for intensive care unit (ICU) support, treatment with dialysis, survival, and mortality were analyzed. The survival and non-survival groups were compared to see the difference in the demographic factors, laboratory results, clinical characteristics, and complications.
Results: One hundred and eighty-one patients were diagnosed with AKI caused by venomous creatures. Mean age was 44 ± 15.4 years, and the majority (54.1%) was women. Snakebite (77.9%) and wasp stings (19.9%) were the leading causes of AKI. Clinical details were available in 148 patients. The median duration of arrival at hospital was two days. 81.8% had oliguria, and 54.7% had a history of hematuria or having passed red or brown colored urine. The hematological and biochemical laboratory abnormalities were as follows: anemia (75%), leukocytosis (75.7%), hyperkalemia (35.8%), severe metabolic acidosis (46.6%), hepatic dysfunction (54.7%), hemolysis (85.8%), and rhabdomyolysis (65.5%). Main complications were as follows: gastrointestinal bleed (9.5%), seizure/encephalopathy (10.8%), and pneumonia/acute respiratory distress syndrome (ARDS) (11.5%). 82.3% of the patients required dialysis. 154 (85.1%) patient survived, and 27 (14.9%) patients died. As compared to the survival group, the white blood cell count, serum bilirubin, aspartate aminotransferase, alanine aminotransferase, creatine kinase, and lactate dehydrogenase were significantly higher, and serum albumin levels were significantly lower in patients who died. The proportion of patients with leukocytosis, hyperkalemia, metabolic acidosis, pneumonia/ARDS, seizure/encephalopathy, need for ICU support, and dialysis was significantly higher in patients who died.
Conclusions: Snakebite and multiple Hymenoptera stings (bees and wasps) were the leading causes of AKI due to venomous animals. AKI was severe, a high proportion required dialysis, and the mortality was high.
Disclosure statement
No potential conflict of interest was reported by the authors.