目的：分析原发性胆汁性肝硬化(PBC)患者的临床特征,以提高对该病诊治的认识。方法：分析17例PBC患者的一般资料、临床表现、生化指标、免疫学指标及病理学改变。结果：PBC主要累及中年女性，易合并干燥综合征（SS）。胆管酶升高及抗线粒体M2抗体阳性有助于本病诊断。治疗首选熊去氧胆酸，糖皮质激素、免疫抑制剂适用于合并SS者。结论：早期诊断、早期治疗PBC是防止发展为终末期肝硬化的关键。
目的:分析原发性胆汁性肝硬化(PBC)患者的临床表现,试验室检查及治疗情况。方法:回顾性分析48例PBC患者临床资料。结果:93.8%是中年女性患者,平均年龄53.2±8.73。主要的临床表现包括肝功能异常(ALT、GGT、AKP升高)95.8%,乏力纳差83.3%,黄疸79.2%,瘙痒66.6%,肝肿大62.5%,脾大58.3%等。常合并干燥综合征(25%),类风湿关节炎(16.7%)等自身免疫性疾病及结缔组织疾病。所以患者AMA及AMAM-2均为阳性。全部病例使用熊去氧胆酸治疗,但仅31.3%患者病情有不同程度好转。结论:加强对PBC的认识,重视对AMA 或AMA-M2的检测,尤其对长期不明原因肝功能异常的女性患者。
Objective To analyze the clinical characteristics of antimitochondrial antibody (AMA)-associated cardiac injury. Methods AMA positive patients admitted to West China Hospital of Sichuan University between June 2008 and November 2023 were retrospectively selected. They were categorized into the simple cardiac involvement group and the cardiac and skeletal muscle involvement group according to the presence of skeletal muscle injury. Differences in demographic characteristics, serologic indices, cardiac structure and function, and arrhythmias were compared between the two groups. Results A total of 55 AMA-M2 positive patients with myocardial injury were enrolled. There were 18 cases in the simple cardiac involvement group and 37 cases in the cardiac and skeletal muscle involvement group among them. The age (P=0.002) and mortality rate (P=0.031) of the simple cardiac involvement group were higher than those of the cardiac and skeletal muscle involvement group. There were significant differences in biochemical indicators such as lactate dehydrogenase and α-hydroxybutyrate dehydrogenase between the two groups, and the levels of myocardial enzymes such as creatine kinase isoenzyme, myoglobin and troponin T in the cardiac involvement group were lower than those in the cardiac with skeletal muscle involvement group (P<0.05). Meanwhile, there were significant differences in the incidence of atrial premature beats, atrial fibrillation and other arrhythmias between the two groups (P<0.05). In terms of treatment modalities, glucocorticoids and immunosuppressants were used more frequently in the cardiac combined skeletal muscle involvement group than in the cardiac involvement alone group, whereas β-blockers and diuretics were more prevalent in the cardiac involvement alone group (P<0.05). Conclusion Patients with cardiac involvement alone may have a more insidious or rapid progression of the disease, which requires clinicians to pay higher attention to and provide timely and effective treatment, thus improving the overall prognosis and quality of life of the patients.