TY  - JOUR
PY  - 2020//
TI  - Severe acute kidney injury following Sri Lankan Hypnale spp. envenoming is associated with thrombotic microangiopathy
JO  - Clinical toxicology (Philadelphia, Pa.)
A1  - Wijewickrama, Eranga S.
A1  - Gooneratne, Lalindra V.
A1  - Gnanathasan, Ariaranee
A1  - Gawarammana, Indika
A1  - Gunatilake, Mangala
A1  - Isbister, Geoffrey K.
SP  - ePub
EP  - ePub
VL  - ePub
IS  - ePub
N2  - CONTEXT: Acute kidney injury (AKI) is the most serious clinical manifestation of the Sri Lankan hump-nosed pit viper (Hypnale spp.) bites. Thrombotic microangiopathy (TMA) is increasingly recognized in association with AKI in cases of Hypnale spp envenomation. We investigated AKI in a cohort of cases of Hypnale envenomation, its association with TMA and the early diagnostic value of common biomarkers for AKI occurring.     MATERIALS AND METHODS: We conducted a prospective observational study of suspected viper bites and included 103 confirmed cases of Hypnale envenomation, based on venom specific enzyme immunoassay of blood. AKI was defined using the Kidney Disease: Improving Global Outcomes (KDIGO) criteria. Thrombotic microangiopathy was diagnosed based on thrombocytopenia (platelet count < 150,000 × 103/μL) and microangiopathic haemolytic anaemia (MAHA). We investigated the diagnostic performance of creatinine, platelet count and INR for AKI within 4 h and 8 h post-bite by area under the receiver operator characteristic curve (AUC-ROC).     RESULTS: Ten patients developed AKI: seven AKI stage 1 and three AKI stage 3. Ten patients (10%) developed thrombocytopaenia while 11 (11%) had MAHA. All three AKI stage 3 had thrombocytopaenia and MAHA fulfilling the criteria for TMA. Two of them presented with oliguria/anuria and all three required haemodialysis. Serum creatinine within 4 h post-bite was the best predictor of AKI with AUC-ROC of 0.83 (95% CI: 0.67-0.99) and was no better within 8 h of the bite.     CONCLUSIONS: We found that AKI is uncommon in Hypnale spp. envenomation, but an important serious complication. Severe AKI was associated with TMA. A creatinine within 4 h post-bite was the best predictor of AKI.<p />  <p>Language: en</p>
LA  - en
SN  - 1556-3650
UR  - http://dx.doi.org/10.1080/15563650.2020.1810695
ID  - ref1
ER  -