Low-dose defibrotide in the treatment of pyrrolizidine alkaloid-induced hepatic sinusoidal obstruction syndrome： A case report
- VernacularTitle:低剂量去纤苷治疗吡咯生物碱相关肝窦阻塞综合征1例报告
- Author:
Haiqing GUO
1
;
Haiqing SUN
2
;
Jing ZHANG
1
;
Lixia QIU
1
Author Information
- Publication Type:Case Reports
- Keywords: Hepatic Sinusoidal Obstruction Syndrome; Pyrrolizidine Alkaloid; Defibrotide; Treatment Outcome
- From: Journal of Clinical Hepatology 2026;42(4):918-922
- CountryChina
- Language:Chinese
- Abstract: This article reports a case of a male patient， aged 60 years， who developed pyrrolizidine alkaloid-induced hepatic sinusoidal obstruction syndrome （PA-HSOS） due to ingestion of Gynura segetum （Lour.） Merr. The patient presented with ascites and abnormal liver function， and a confirmed diagnosis was made based on radiological examination and liver biopsy. Since the patient was allergic to low-molecular-weight heparin and had no response to supportive therapy， low-dose defibrotide was administered as rescue treatment. After treatment， the patient achieved rapid regression of ascites and recovery of liver function， and liver biopsy reexamination showed alleviation of sinusoidal congestion and hepatocyte regeneration. Self-resolving conjunctival hemorrhage occurred during treatment. This case suggests that for patients with contraindications to standard anticoagulation therapy or those showing no response to such treatment， low-dose defibrotide may be used as an effective and relatively safe alternative treatment regimen.
