Bites by Philodryas olfersii (Lichtenstein, 1823) and Philodryas aestiva (Duméril, Bibron and Duméril, 1854) (serpentes, dipsadidae) in São Paulo, Brazil: a retrospective observational study of 155 cases

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dc.contributor(HVB) Hospital Vital Brazilpt_BR
dc.contributorLab. Ecologia e Evoluçãopt_BR
dc.contributor.authorCastro, Felipe Corrêapt_BR
dc.contributor.authorSouza, Solange Nogueira dept_BR
dc.contributor.authorAlmeida-Santos, Selma Mariapt_BR
dc.contributor.authorMiyaji, Karina Takesakipt_BR
dc.contributor.authorMedeiros, Carlos Roberto dept_BR
dc.date.accessioned2021-04-26T17:42:25Z-
dc.date.available2021-04-26T17:42:25Z-
dc.date.issued2021pt_BR
dc.identifier.citationCastro FC, Souza SN, Almeida-Santos SM, Miyaji KT, Medeiros CR. Bites by Philodryas olfersii (Lichtenstein, 1823) and Philodryas aestiva (Duméril, Bibron and Duméril, 1854) (serpentes, dipsadidae) in São Paulo, Brazil: a retrospective observational study of 155 cases. Toxicon. 2021 July;197:55-64. doi:10.1016/j.toxicon.2021.04.014.pt_BR
dc.identifier.urihttps://repositorio.butantan.gov.br/handle/butantan/3683-
dc.description.abstractDespite the biological relevance and abundance of non-front-fanged colubroid snakes, little is known about the medical significance of the majority these species. Herein, we described bites by two green racer species of colubroid snakes, with respect to clinical, epidemiological, and biological features. We retrospectively analyzed proven cases of Philodryas olfersii and Philodryas aestiva bites. Only cases in which the causative animal was brought and identified by an expert were included. Analysis included variables related to the snake, patient demographics, clinical findings, whole blood clotting time (WBCT20), and treatments. Total 155 medical records were analyzed, of which 141 and 14 patients each were bitten by P. olfersii and P. aestiva, respectively. Most bites occurred in spring and summer seasons, predominantly during daytime. Most snakes were female and adult. Bites by P. olfersii adults were more frequent in summer (p < 0.001) and spring (p < 0.001). The hands were most frequently bitten by P. olfersii (59.6%), while the feet and legs (71.4%) were most bitten by P. aestiva. The most common local signs or symptoms observed were pain, edema, erythema, and transitory local bleeding. Severe pain, extensive edema, ecchymosis, and paresthesia were present only in patients bitten by P. olfersii. Significant association was observed between local bleeding and adult snakes (p = 0.019), as well as between the snout-vent-length and pain (p = 0.018), extensive edema (p = 0.024), and erythema (p = 0.047). WBCT20 was normal in the 35 cases in which it was available. Two patients were wrongly treated with anti-Bothrops antivenom. These results indicated that most accidents caused by P. olfersii and P. aestiva present mild local symptomatology. Some bites of P. olfersii bites may present local symptoms, resembling bites by Bothrops-like snakes. Physicians should be informed about these kinds of accidents, to avoid unnecessary distress to the patient and over prescription of antivenom.pt_BR
dc.format.extent55-64pt_BR
dc.language.isoEnglishpt_BR
dc.relation.ispartofToxiconpt_BR
dc.rightsRestricted accesspt_BR
dc.titleBites by Philodryas olfersii (Lichtenstein, 1823) and Philodryas aestiva (Duméril, Bibron and Duméril, 1854) (serpentes, dipsadidae) in São Paulo, Brazil: a retrospective observational study of 155 casespt_BR
dc.typeArticlept_BR
dc.identifier.doi10.1016/j.toxicon.2021.04.014pt_BR
dc.identifier.urlhttps://doi.org/10.1016/j.toxicon.2021.04.014pt_BR
dc.contributor.external(USP) Universidade de São Paulopt_BR
dc.contributor.external(COVISA) Coordenadoria de Vigilância em Saúdept_BR
dc.contributor.externalCentro Universitário São Camilopt_BR
dc.identifier.citationvolume197pt_BR
dc.subject.keywordPhilodryas aestivapt_BR
dc.subject.keywordPhilodryas olfersiipt_BR
dc.subject.keywordDipsadidaept_BR
dc.subject.keywordsnakebitept_BR
dc.subject.keywordenvenomationpt_BR
dc.relation.ispartofabbreviatedToxiconpt_BR
dc.identifier.citationabntv. 197, p. 55-64, jul. 2021pt_BR
dc.identifier.citationvancouver2021 July;197:55-64pt_BR
dc.contributor.butantanSouza, Solange Nogueira de|:Pesquisador|:(HBV) Hospital Vital Brazilpt_BR
dc.contributor.butantanAlmeida-Santos, Selma Maria|:Pesquisador|:Lab. Ecologia e Evoluçãopt_BR
dc.contributor.butantanMedeiros, Carlos Roberto de|:Pesquisador|:Lab. Ecologia e Evoluçãopt_BR
dc.identifier.bvsccBR78.1pt_BR
dc.identifier.bvsdbIBProdpt_BR
dc.description.dbindexedYespt_BR
item.languageiso639-1English-
item.grantfulltextembargo_29990101-
item.fulltextCom Texto completo-
item.openairetypeArticle-
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