利钠多肽对高血压患者并发心房纤颤和左室肥厚的预测价值

目的探讨利钠多肽对高血压患者并发心房纤颤(房颤)和左室肥厚的预测价值。方法选择高血压患者110例,根据是否合并房颤分为3组:A组为高血压并发持续性房颤40例,B组为高血压并发阵发性房颤30例,C组为高血压不伴房颤患者40例,检查3组患者的超声心动图、N端B型利钠多肽(Nt-proBNP)水平并进行比较。降压药物治疗1年后将110例患者列入D组即左室肥厚消退组62例和E组即未消退组48例,比较两组患者的Nt-proBNP、左房大小、房颤发生率和服药差异等。结果 A组与B组、C组患者的年龄、Nt-proBNP水平、左房内径(LAD)、室间隔厚度(IVST)、左室心肌质量指数(LVMMI)间差异有统计学意义(P<0.05);房颤的发生与Nt-ProBNP水平、IVST、左室后壁厚度(LVPWT)、LVMMI、LAD、左室舒张末内径(LVEDD)及年龄均呈正相关。D组与E组的Nt-ProBNP、LAD、LVEDD、IVST及阵发性房颤发生率间差异有统计学意义(P<0.05);D组与E组患者的ACEI和ARB的使用率间差异有统计学意义(P<0.05)。结论高血压伴左室肥厚、左房扩大是房颤的危险因素;降压治疗可使左室肥厚消退和左房缩小从而减少房颤的发生;Nt-proBNP水平与左室肥厚、房颤的发生相关。     

阻塞性睡眠呼吸暂停与缓慢性心律失常的关系

Objective To analyze the relations between obstructive sleep apnea and bradyarrhythmia.Methods From 1999 to 2005,203 patients who came from Bering Tongren Hospital and Fuwai Hospital were found to have sleep apnea in an ambulatory study. A Hoher electrecardiogram was recorded for 24 hours within 2 weeks after patients were diagnosed as obstructive sleep apnem Results Nocturnal episodes of bradyarrhythmia were identified in 12(5.9%)of 203 patients.Body mass index and respiratory disturbance index in patients with bradyarrhythmia(n=12)were higher than those in patientswithour bradyarrhymia(n=191)(34±5 735.24±6 and 63±15 vs.25±5,respectively,both P<0.01).There was a significant difference in end-apneic oxygen saturation in apnea/hypopnea episodes with and without bradyarrhythmia(63%±15% vs.75%±11%,P<0.05).A linear relation between end-apneic oxygen saturation and number of sinus arrests and heart blocks was not found.Conclusions Patients with apnea-associated bradyarrhythmia have higher body mflgB index and higher respiratory disturbance index than patients without bradyarrhythmi&Bradyarrhythmia occurres independently from decrease in oxygen saturation.     

辛伐他汀引起横纹肌溶解1例临床分析

1 临床资料 患者男,72岁.因双下肢无力4 d于2005-08-08入院.入院前4 d无诱因出现双下肢乏力伴肩背部压迫感,除华法林外自行停用其他药物.近期无胸闷、胸痛等症状.既往史:心房颤动12年,高血压病10年,近6年反复3次脑梗死.