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Symmetrical peripheral gangrene and dopamine.
Taner Colak1, Okan Erdogan, Ozlem Yerebakan
1Department of General Surgery, Akdeniz University, Antalya, Turkey. taner85@e-kolay.net
Summary
High-dose dopamine, used inappropriately for hypovolemic shock, may cause symmetrical peripheral gangrene (SPG). This rare complication affects extremities and requires careful dopamine use in shock patients.
Area of Science:
- Medical Case Study
- Pharmacology
- Critical Care Medicine
Background:
- Hypovolemic shock requires careful management to prevent complications.
- Symmetrical peripheral gangrene (SPG) is a rare condition characterized by tissue death in extremities.
- Vasopressor medications are often used in shock but can have adverse effects.
Observation:
- A 55-year-old male patient in hypovolemic shock developed SPG affecting his hands and feet.
- The patient received high-dose dopamine (> 20 microg/kg/min), an inappropriate dosage for his condition.
- No evidence of large vessel obstruction or vasculitis was found, ruling out other common causes of gangrene.
Findings:
- High-dose dopamine administration was identified as a potential direct or contributing cause of SPG in this case.
- SPG syndrome can manifest as a severe, albeit rare, complication associated with dopamine therapy.
- This case highlights the critical need for appropriate vasopressor dosing in shock management.
Implications:
- Clinicians should exercise caution when using dopamine, particularly at high doses, in patients with hypovolemic shock.
- Recognizing SPG as a potential dopamine-induced complication is crucial for timely diagnosis and management.
- Further research may be warranted to elucidate the precise mechanisms linking dopamine and SPG in critical care settings.