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CARDIOGENIC SHOCK AND GLOBUS PALLIDUS INJURY AS A PRESENTATION OF CARBON MONOXIDE POISONING
M Palma Anselmo1, R Maia1, P Telles de Freitas1
1Intensive Care Unit, Professor Doutor Fernando Fonseca Hospital, Amadora, Portugal.
Insights
Severe carbon monoxide poisoning can cause coma and shock. Hyperbaric oxygen therapy effectively treated a patient with carbon monoxide intoxication, leading to full neurological and cardiac recovery.
Area of Science:
- Toxicology
- Emergency Medicine
- Neurology
Background:
- Carbon monoxide (CO) poisoning is a significant global cause of mortality and morbidity.
- Clinical signs of CO poisoning are often nonspecific, affecting organs with high oxygen demand, particularly the brain.
- Carbon monoxide-hemoglobin (CO-Hb) levels are unreliable indicators of severity; clinical features and laboratory findings are crucial for assessment.
Purpose of the Study:
- To report a rare, severe case of carbon monoxide intoxication presenting with coma, globus pallidus injury, and cardiogenic shock.
- To highlight the efficacy of hyperbaric oxygen treatment in managing severe carbon monoxide poisoning.
Main Methods:
- A case report of a 45-year-old female with severe carbon monoxide intoxication.
- Clinical assessment included neurological status, cardiac function (ECG, echocardiogram), and laboratory tests (CO-Hb, lactate, renal function, troponin I).
- Treatment involved hyperbaric oxygen therapy.
Main Results:
- The patient presented in a coma with cardiogenic shock, metabolic acidosis, hyperlactacidemia, and evidence of multi-organ dysfunction (liver, kidneys, rhabdomyolysis).
- Cranial CT revealed characteristic bilateral globus pallidus hypodensities, indicating brain injury.
- Following hyperbaric oxygen treatment, the patient experienced complete neurological and cardiac recovery and was extubated within 48 hours.
Conclusions:
- Severe carbon monoxide poisoning can lead to significant neurological and cardiac complications, including globus pallidus injury and cardiogenic shock.
- Hyperbaric oxygen therapy is an effective treatment for severe carbon monoxide intoxication, demonstrating excellent outcomes for neurological and cardiac function.
- This case underscores the importance of considering hyperbaric oxygen therapy in severe carbon monoxide poisoning cases.
Abstract:
Carbon monoxide poisoning is one of the leading causes of mortality and morbidity by poisoning in the world. Signs and symptoms are nonspecific and related to impaired oxygen delivery to tissues, with the brain being the most affected organ due to its high oxygen demand. CO-Hb is a poor indicator of severity and long-term outcome, with clinicians relying more on clinical features such as level of consciousness and need for intubation, organ dysfunction and shock and also pH level. A 45-year-old female was found unconscious in her home with the fireplace lit and smoke all over the house. She was last seen well 18 hours before. She was brought to the emergency department and was admitted to the ICU in coma and cardiogenic shock, with a metabolic acidosis with hyperlactacidemia and a CO-Hb level of 15.5%. Laboratorial investigation revealed hepatic cytolysis, acute renal failure, rhabdomyolysis and a troponin I level of 338 ng/L. ECG showed no acute myocardial ischemia. Echocardiogram revealed diffuse hypokinesia with an ejection fraction of 25%. Head CT scan showed bilateral and symmetrical hypodensities of the globus pallidus. The patient underwent hyperbaric oxygen treatment with full neurological and cardiac recovery, allowing extubation 48 hours after admission. This rare severe case of coma due to carbon monoxide intoxication with globus pallidus injury and cardiogenic shock was successfully treated with hyperbaric oxygen, showing that it can be the right treatment choice in these cases, with an excellent impact on neurological and cardiac outcome.
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