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Cocaine-Induced Four-Extremity Ischemia Caused by a Hypercoagulable State
Victoria Echevarria1, Alexandra C Echevarria2, Damian Casadesus3
1Internal Medicine, American University of the Caribbean, Sint Maarten, MAF.
Insights
Chronic cocaine use can lead to rare but severe limb ischemia. This case highlights cocaine-induced thrombotic microangiopathy affecting all four limbs, a serious complication with unclear pathophysiology.
Area of Science:
- Vascular Medicine
- Toxicology
- Hematology
Background:
- Cocaine use is linked to various ischemic complications affecting multiple organ systems.
- Limb ischemia is a rare but serious potential side effect of chronic cocaine abuse.
Observation:
- A 50-year-old female with a history of extensive cocaine use presented with ischemia in all four limbs.
- Imaging revealed pulmonary emboli, multisystem thromboses, and cerebral microhemorrhages.
- Laboratory findings included leukocytosis, thrombocytopenia, and schistocytes, with normal rheumatologic and hematologic evaluations.
Findings:
- The patient was diagnosed with cocaine-induced thrombotic microangiopathy (CITM).
- Treatment involved symptomatic management and continuous heparin infusion.
- Despite treatment, the patient was lost to follow-up.
Implications:
- Cocaine-induced thrombotic microangiopathy is a rare condition with limited reported cases.
- The exact pathophysiology of CITM remains poorly understood and requires further investigation.
- This case underscores the severe systemic vascular risks associated with chronic cocaine consumption.
Abstract:
The use of cocaine is associated with serious complications including coronary vasospasm and myocardial, renal, intestinal, and neurological ischemia. Among these feared complications lies limb ischemia which is a rare potential side effect of chronic cocaine use. We present the case of a 50-year-old female with an extensive history of cocaine use who developed ischemia in all four limbs. Imaging studies revealed pulmonary emboli, multisystem thromboses, and microhemorrhages in the brain. Laboratory studies were significant for leukocytosis, thrombocytopenia, schistocytes on blood smear, and normal rheumatologic and hematologic studies. The patient was diagnosed with cocaine-induced thrombotic microangiopathy and she was treated symptomatically and with continuous heparin infusion. However, she ultimately requested to be discharged home and was lost to follow-up. Cocaine-induced thrombotic microangiopathy has been reported in only a few other patients to date and although there are some theories describing the possible pathophysiology, a clearly defined explanation has not yet been widely accepted.
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