围生期心肌病发病相关因素的研究

目的 探讨围生期心肌病(PPCM)发病的相关因素.方法 时82例PPCM患者进行流行病学调查,检查心脏彩超,测定肌钙蛋白I(cTNI)、高敏C-反应蛋白(hs-CRP)、N末端B型利钠肽(NT-proBNP)等指标,并随机对其中52例患者进行了平均6个月的随访.对照组选用同期住院的正常分娩患者.结果 PPCM患者与对照组相比,年龄较大[分别为(29.5±6.4)岁和(25.2±5.8)岁,P<0.01],血压较高(分别为146.9/98.8 mm Hg和130.2/80.1 mm Hg,P<0.01),剖宫产比例较高(分别为65.9%和51.0%,P<0.05),合并感染率明显升高(分别为75.6%和10.0%,P<0.01),实验室检查白细胞(分别为11.0×109/L和8.8×109/L,P<0.01)、cTNI(分男q为0.17μg/L和0.06μg/L,P<0.01)、hs-CRP(分别为2 8.2ms/L和6.2 mg/L,P<0.01)、NT-proBNP(分别为650.1 ng/L和110.5 ns/L,P<0.01)明显升高,hs-CRP和NT-proBNP呈正相关(r=0.67,P<0.01).经过平均6个月的治疗,平均射血分数由32.2%提高至50.6%,NT-proBNP明显下降(治疗前、后分别为650.1 ng/L和225.6 ng/L,P<0.01),NT-proBNP下降的独立影响因素为舒张压下降(P<0.05)、左心室舒张末径缩小(P<0.05)和hs-CRP下降(P<0.05).结论 炎症反应在围生期心肌病发病中起了重要的作用.

Study of factors related to peripartum cardiomyopathy

Objective To explore the risk factors of peripartum cardiomyopathy (PPCM). Methods A total of 82 PPCM and 100 normal delivery females were randomly recruited in the current study. Echocardiographic, cTNI,high sensitive C-reaction protein(hs-CRP) ,NT-proBNP were measured. Fifty-two patients were followed up for a mean of 6 months. Results The PPCM patients (29. 5 ± 6. 4) yrs were older than the controls (25. 2 ± 5. 8) yrs (P<0.01) . Compared to the controls, the PPCM patients showed higher blood pressure (146.9/98. 8 mm Hg v. s. 130. 2/80. 1 mm Hg, P < 0. 01) , higher proportion of cesarean section (65. 9% v. s. 51. 0% , P < 0. 05) and complicated infection(75. 6% v. s. 10. 0% ,P <0. 01). The level of leucocyte(11.0 × 109/L) ,cTNI(0. 17 μg/L), hs-CRP(28. 2 mg/L)and NT-proBNP(650. 1 ng/L) were significantly higher in the PPCM patients compared with control(8. 8 × 109/L,0. 06μg/L,6. 2 mg/L and 110. 5 ng/L,P <0. 01). Hs-CRP was positively related with NT-proBNP(r = 0. 67, P < 0. 01). After average of 6 months of treatment, left ventricular ejection fraction enhanced from 32. 2% to 50. 6%. NT-proBNP significantly declined from 650. 1 ng/L to 225.6 ng/L(P <0. 01). Multiple linear regression analysis showed that diastolic pressure (P < 0. 05), LVED (P < 0. 05) and hs-CRP (P < 0. 05) were the independent predictors for declined NT-proBNP. Conclusions Inflammatory plays an important role in the development of peripartum cardiomyopathy.