T61.03

Clinical Causes: Consuming tropical and subtropical reef fish that have accumulated ciguatoxins in their tissues Eating large predatory fish like barracuda, grouper, snapper, amberjack, and moray eel Ingesting fish contaminated with toxins that are not destroyed by cooking or freezing

Key Symptoms: Gastrointestinal symptoms such as nausea, vomiting, diarrhea, and abdominal cramps Neurological symptoms including numbness, tingling, and a sensation of tingling or burning around the mouth, lips, and extremities Muscle weakness or fatigue A reversal of hot and cold sensations, leading to a strange feeling when touching hot or cold objects Dizziness, headache, and general malaise

Diagnosis Path: Diagnosis primarily relies on a detailed history of recent fish consumption and symptom presentation. Medical professionals may perform physical examinations and inquire about specific symptoms. Laboratory tests are not typically used to detect ciguatoxins directly but may help rule out other causes. Occasionally, targeted toxin testing or fish sample analyses can confirm exposure. Given the complexity of toxin detection, the focus is often on clinical diagnosis based on symptoms and dietary history.

Treatment Protocols: There is no specific antidote for ciguatera poisoning. Management mainly involves supportive care to relieve symptoms and prevent dehydration. Patients may receive medications such as antihistamines or anti-diarrheal agents to alleviate gastrointestinal symptoms. In cases with severe neurological symptoms, medications like mannitol have been used, but their effectiveness remains debated. Patients are advised to stay well-hydrated and avoid alcohol, caffeine, and certain medications that may exacerbate neurological signs. Symptoms typically resolve over time, but some individuals may experience prolonged neurological effects.