Saw-scaled viper bites in Sri Lanka: is it a different subspecies? Clinical evidence from an authenticated case series.
The saw-scaled viper (SSV) (Echis carinatus) is considered to be a highly venomous snake in Sri Lanka despite any published clinical justification. Being a rarity, the clinical profile of SSV bites is not well established in Sri Lanka. We report a series of 48 (n-48) SSV bites from the Northern Province of Sri Lanka. The majority (65%) of victims had evidence of local envenoming at the site of the bite; however, 29% showed spontaneous bleeding and 71% had coagulopathy. There were no deaths in the series. The envenoming was mild in contrast to the mortality and significant morbidity associated with SSV bites in West Africa and some parts of India. These observations need to be further explored with laboratory studies to identify the venom components, study of morphological characteristics, and genetic profiling of the Sri Lankan SSV to see if it is different from the subspecies found elsewhere.
Faculty of Medicine, University of Colombo, Kynsey road, Colombo 08, Sri Lanka. ariaranee2011@gmail.com
Ariaranee
A
Gnanathasan
Chaturaka
C
Rodrigo
Thambipillai
T
Peranantharajah
Anthonia
A
Coonghe
D000328:Adult; D000818:Animals; D000997:Antivenins / Q000627:therapeutic use; D001778:Blood Coagulation Disorders / Q000188:drug therapy / Q000453:epidemiology* / Q000209:etiology; D005260:Female; D005500:Follow-Up Studies; D017408:Guidelines as Topic; D006470:Hemorrhage / Q000150:complications / Q000188:drug therapy / Q000453:epidemiology*; D006760:Hospitalization; D006801:Humans; D008297:Male; D011446:Prospective Studies; D012909:Snake Bites / Q000150:complications / Q000188:drug therapy / Q000453:epidemiology*; D013045:Species Specificity; D013188:Sri Lanka / Q000453:epidemiology; D016896:Treatment Outcome; D014757:Viper Venoms / Q000506:poisoning*; D017819:Viperidae / Q000145:classification*; D055815:Young Adult
D000997:Antivenins; D014757:Viper Venoms