Freshwater stingrays: study of epidemiologic, clinic and therapeutic aspects based on 84 envenomings in humans and some enzymatic activities of the venom

Haddad, Vidal; Garrone‐Neto, Domingos; Neto, João Batista de Paula; Marques, Fernando P. L.; Barbaro, Kátia Cristina

doi:10.1016/j.toxicon.2003.12.006

Cited by 113 publications

(129 citation statements)

References 16 publications

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“…In a previous report of 84 envenoming in humans caused by freshwater stingrays, the authors demonstrated that this is the most severe local injury caused by fish in Brazil, requiring controlled and professional treatment, often with opioid analgesics and antibiotics 11 .…”

Section: Acknowledgmentsmentioning

confidence: 99%

“…The place becomes edematous and erythematous and the pain persists for more than six hours, with the possibility of infections that can last days ( Table 3). This complication may indicate the presence of fragments of the stinger (Figure 1) 11 . Bacterial infections are common factors complicating the accident and, in most cases are caused by Staphylococcus and Streptococcus, but may be associated with bacteria, such as Vibrio vulnificus (more common in marine environments) and Aeromonas hidrophyla, which cause severe infections with deep tissue necrosis (Figure 1) 12 .…”

Section: Acknowledgmentsmentioning

confidence: 99%

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Injuries and envenoming by aquatic animals in fishermen of Coxim and Corumbá municipalities, state of Mato Grosso do Sul, Brazil: identification of the causative agents, clinical aspects and first aid measures

Silva

Sabino

Alho

et al. 2010

Rev. Soc. Bras. Med. Trop.

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Introduction: The fishes of continental Brazil have socioeconomic importance due to their potential for sport fishing and commercial and subsistence uses, as seen in the Upper Paraguay River Basin, particularly in the municipalities of the Pantanal region, where it is the second largest economic activity. Injuries caused in professional fishermen are common and poorly studied, as in other regions of the country. Methods: Data were obtained from questionnaires and interviews with 100 professional fishermen, 50 in each municipality, between December 2008 and October 2009. Results: All the fishermen reported some kind of injury caused by fish stings (78% of injuries) and fish, alligator and snake bites (22%) on the hands (46% of cases) and feet (35% of cases). Most of the patients had mild symptoms. The most severe cases were associated with secondary bacterial infections and required specific treatment and prolonged recovery associated with social and economic losses. Conclusions: The results of this study indicate that the stressful work conditions, inattention to basic preventive measures and carelessness were factors that contributed to accidents and that the toxicity and ability to inflict mechanical trauma of some aquatic species, plus the ineffective use of first aid and hospital treatment, contributed to the high morbidity and complications in many cases. Data from this study are relevant to the fishing communities of the Pantanal region, since they reveal high rates of accidents, lack of knowledge concerning first aid, initial treatment, injury prevention and lack of medical follow-up of the population.

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Section: Acknowledgmentsmentioning

confidence: 99%

Section: Acknowledgmentsmentioning

confidence: 99%

Injuries and envenoming by aquatic animals in fishermen of Coxim and Corumbá municipalities, state of Mato Grosso do Sul, Brazil: identification of the causative agents, clinical aspects and first aid measures

Silva

Sabino

Alho

et al. 2010

Rev. Soc. Bras. Med. Trop.

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“…Skin necrosis is frequently observed in victims wounded by large freshwater stingrays in the wild. 21 In addition, skin necrosis is more commonly observed in victims injured by freshwater stingrays than marine stingrays. A study of tissue extracts from the stingers of freshwater and marine stingrays showed that both tissue extracts had gelatinolytic, caseinolytic, and fibrinogenolytic activity but hyaluronidase activity was detected only in the extracts from freshwater stingrays.…”

Section: Discussionmentioning

confidence: 99%

“…Hot water immersion is effective in controlling acute pain but does not prevent skin necrosis. 21 Wounds caused by freshwater stingray stings such as the Aeromonas species can be complicated by severe secondary infection with virulent bacteria. 23 Prophylactic antibiotic is often required.…”

Section: Discussionmentioning

confidence: 99%

Injuries and envenomation by exotic pets in Hong Kong

Lit²,

Wong³

et al. 2018

Hong Kong Med J

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“…In the Paraná-Paraguay River system, existent data are restricted to studies carried on during the decades of 1960 and 1970 in the region of Santa Fé, Argentina (Castex 1963a,b, Achenbach & Achenbach 1976. Recently, some reports focused on the stingray invasion in the Upper Paraná River and their capacity to inflict injuries to humans (Haddad Jr. et al 2004).…”

Section: Introductionmentioning

confidence: 99%

Preliminary data on the feeding habits of the freshwater stingrays Potamotrygon falkneri and Potamotrygon motoro (Potamotrygonidae) from the Upper Paraná River basin, Brazil

Silva

Uieda

2007

Biota Neotrop.

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Stingrays of the Potamotrygonidae family are a singular group of Neotropical ichthyofauna. Although ancient reports exist about the group, there are still many questions that need to be clarified, such as the biology of the species that occur in the Paraná-Paraguay River system. In the present work, the diet of Potamotrygon falkneri and Potamotrygon motoro, captured in the Upper Paraná River, downstream from the Engenheiro Souza Dias Hydroelectric Power Station (UHE Jupiá), was analyzed. Both species showed a diversified diet, consisting of 14 food items, including Mollusca, Crustacea, Insecta and fish, with the predominance in diversity and abundance of aquatic insects. Only one individual of each species ingested fish. Potamotrygon motoro consumed mainly Ephemeroptera, while P. falkneri consumed mainly Mollusca, Hemiptera and Trichoptera. The data apparently indicate a more specialized diet for P. motoro, consuming more Ephemeroptera (Baetidae), and a more generalized diet for P. falkneri. The analysis of individuals captured in three microhabitats that differ in function of the substrate type and presence of marginal vegetation, suggests differences in the food items consumed.

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Freshwater stingrays: study of epidemiologic, clinic and therapeutic aspects based on 84 envenomings in humans and some enzymatic activities of the venom

Cited by 113 publications

References 16 publications

Injuries and envenoming by aquatic animals in fishermen of Coxim and Corumbá municipalities, state of Mato Grosso do Sul, Brazil: identification of the causative agents, clinical aspects and first aid measures

Injuries and envenoming by aquatic animals in fishermen of Coxim and Corumbá municipalities, state of Mato Grosso do Sul, Brazil: identification of the causative agents, clinical aspects and first aid measures

Injuries and envenomation by exotic pets in Hong Kong

Preliminary data on the feeding habits of the freshwater stingrays Potamotrygon falkneri and Potamotrygon motoro (Potamotrygonidae) from the Upper Paraná River basin, Brazil

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