Kulkarni A U, Krishnaswami S, Prasad N K, Jose J, Kothari S S
Indian Heart J. 1989 Mar-Apr;41(2):95-8.
Systolic Time Intervals (STI) were recorded in 45 patients with Dilated Cardiomyopathy (DCMY) to evaluate left ventricular function. Shortening of LVETI was seen in 37 (82%), prolongation of PEPI in 42 (93%), and increase in PEP/LVET ratio in 43 (95%) patients of DCMY. Global left ventricular dysfunction could be identified in all the patients (100%) with the combination of PEPI and PEP/LVET ratio. On follow up evaluation of 14 patients, change in STI status was seen to correlate with clinical status of the patients. STI as a non-invasive indicator of left ventricular function are useful in diagnosis and follow up of patients with DCMY.
对45例扩张型心肌病（DCMY）患者记录收缩期时间间期（STI）以评估左心室功能。在37例（82%）DCMY患者中观察到左室射血时间间期（LVETI）缩短，42例（93%）患者射血前期（PEP）延长，43例（95%）患者PEP/LVET比值增加。结合PEP和PEP/LVET比值可在所有患者（100%）中识别出整体左心室功能障碍。对14例患者进行随访评估时，发现STI状态的变化与患者的临床状态相关。STI作为左心室功能的非侵入性指标，在DCMY患者的诊断和随访中很有用。
