Nattrodt Janio J M, Bezerra-de-Freitas Victória A, Merval Ana Paula S S, Filardi Eloise T, Cerni Felipe A, Dantas Domingos S M, Lins Alysson B M, Galan Luis E B, Carbonell Roberto C, Pucca Manuela B
General Hospital of Roraima, Boa Vista, Brazil.
Medical School, Federal University of Roraima (UFRR), Boa Vista, Brazil.
Front Med (Lausanne). 2025 Mar 10;12:1536540. doi: 10.3389/fmed.2025.1536540. eCollection 2025.
Stingray injuries represent a significant occupational hazard, particularly for fishermen, and are commonly caused by freshwater stingrays of the Potamotrygonidae family. These stingrays are equipped with a sharp, bilaterally serrated spine that delivers venom, inducing vasoconstriction, severe pain, and ischemia. Such injuries are not only intensely painful but also debilitating, often rendering victims unable to work for weeks or even months. Traditional self-treatment practices, including the application of urine and herbal remedies, are widely relied upon in affected communities but are scientifically unproven and frequently lead to delayed or suboptimal care. This study presents two clinical cases of freshwater stingray envenomation from Roraima, the northernmost state of Brazil located within the Amazon Rainforest. Both cases were managed at the infectious disease unit of the General Hospital in Boa Vista, the state capital. Patients received evidence-based medical care, including intravenous antibiotic therapy and surgical debridement to remove necrotic and devitalized tissue. In one case, advanced negative pressure wound therapy (NPWT) was utilized during dressing changes, resulting in a clean wound devoid of edema and necrotic tissue, demonstrating the technique's effectiveness in promoting wound healing. By accelerating wound healing and mitigating complications such as infections and chronic wounds, NPWT significantly enhance patient outcomes. Furthermore, this study underscores the limitations of traditional remedies and advocates for the adoption of evidence-based interventions, particularly in regions like the Brazilian Amazon, where access to healthcare can be challenging.
黄貂鱼伤害是一种重大的职业危害，尤其对渔民而言，通常由河魟科的淡水黄貂鱼造成。这些黄貂鱼长有一根锋利的、两侧有锯齿的脊椎，能释放毒液，引发血管收缩、剧痛和局部缺血。此类伤害不仅剧痛难忍，还会使人虚弱无力，受害者往往数周甚至数月无法工作。在受影响的社区，人们广泛依赖包括使用尿液和草药疗法在内的传统自我治疗方法，但这些方法未经科学验证，常常导致治疗延误或效果不佳。本研究介绍了两例来自巴西最北部位于亚马逊雨林的罗赖马州的淡水黄貂鱼中毒临床病例。两例均在州首府博阿维斯塔综合医院的传染病科接受治疗。患者接受了循证医疗护理，包括静脉注射抗生素治疗和手术清创以清除坏死和失活组织。在其中一例中，换药时采用了先进的负压伤口治疗（NPWT），结果伤口清洁，无水肿和坏死组织，证明了该技术在促进伤口愈合方面的有效性。通过加速伤口愈合并减轻感染和慢性伤口等并发症，NPWT显著改善了患者的治疗效果。此外，本研究强调了传统疗法的局限性，并提倡采用循证干预措施，特别是在巴西亚马逊等地区，那里获得医疗保健可能具有挑战性。
