SHI Chao,SHU Dezhong.Pharmaceutical care for toxic epidermal necrolysis in patients with deep vein thrombosis and acute renal insufficiency induced by warfarin[J].ZHONGGUO YAOFANG,2025,36(18):2317-2321.
SHI Chao,SHU Dezhong.Pharmaceutical care for toxic epidermal necrolysis in patients with deep vein thrombosis and acute renal insufficiency induced by warfarin[J].ZHONGGUO YAOFANG,2025,36(18):2317-2321. DOI: 10.6039/j.issn.1001-0408.2025.18.18.
Pharmaceutical care for toxic epidermal necrolysis in patients with deep vein thrombosis and acute renal insufficiency induced by warfarin
To provide a reference for pharmaceutical care of patients with deep vein thrombosis and acute renal insufficiency that develop toxic epidermal necrolysis (TEN) after taking warfarin in clinical practice.
METHODS
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Clinical pharmacists participated in the pharmaceutical care for a patient with deep vein thrombosis and acute renal insufficiency that developed TEN after taking warfarin. Based on the Naranjo’s assessment scale and the causality judgment criteria of the National Center for Adverse Drug Reaction Monitoring, the clinical pharmacists determined that the association between TEN and warfarin was “probable”. The TEN score (SCORTEN) was 3. Regarding the TEN that occurred in the patient, the clinical pharmacists recommended discontinuing warfarin, strengthening anti-allergic treatment, requesting assistance from the burn and plastic surgery department for diagnosis and treatment, and strengthening monitoring. When the patient’s renal function gradually recovered, it was recommended to replace heparin with rivaroxaban. After the infection was controlled, the anti-infective drug withdrawal was suggested.
RESULTS
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The physician adopted the clinical pharmacist’s suggestions. The patient improved after treatment, was allowed to be discharged with medication, and no similar reactions recurred during follow-up after discharge.
CONCLUSIONS
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The occurrence of TEN caused by warfarin in patients with deep vein thrombosis and acute renal insufficiency is relatively rare. The mechanism is unclear. During clinical application, it is necessary to strengthen monitoring of blood routine, coagulation profile, renal function, and inflammatory indicators. If TEN is suspected, the drug should be immediately discontinued, and symptomatic treatment, such as anti-allergic treatment should be given. Communication of clinical pharmacists with the physicians should be strengthened, patient follow-up should be improved, and the drug treatment plan should be optimized to ensure the safety of the patient’s medication.
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