Takotsubo cardiomyopathy after intracranial aneurysmal subarachnoid hemorrhage

Abstract

Objective To investigate the clinical characteristics of Takotsubo cardiomyopathy (TTC) following intracranial aneurysmal subarachnoid hemorrhage (SAH).  Methods Review all patients with intracranial aneurysmal SAH from January 2013 to January 2015 in our hospital, and finally a total of 14 patients who complicated TTC were selected. Their clinical data, creatine kinase (CK), creatine kinase isoenzyme MB (CK-MB), N-terminal pro-B-type natriuretic peptide (NT-proBNP), ECG and echocardiographic findings were analyzed.  Results For 14 patients of TTC following aneurysmal SAH, the value of CK was (591.93 ± 248.78) IU/L in the first 24 h on admission, and significantly decreased to (137.79 ± 29.93) IU/L 2 weeks later (t = 7.090, P = 0.000); the value of CK-MB was (27.07 ± 7.66) IU/L in the first 24 h (3 cases were at normal levels), and significantly decreased to (14.36 ± 5.58) IU/L 2 weeks later (t = 4.897, P = 0.000); the value of NT-proBNP was (8685.36 ± 3963.44) IU/L in the first 24 h, and significantly decreased to (577.14 ± 203.37) IU/L 2 weeks later (t = 7.778, P = 0.000). ECG on admission mainly showed ST segment alternation, T wave inversion and QT interval prolongation. Echocardiograghic findings showed segmental left ventricular wall motion abnormalities. The average left ventricular ejection fraction (LVEF) was (36.07 ± 6.15)%, and increased to (56.43 ± 3.18)% 2 weeks later (t = 13.381, P = 0.000). The results of ECG and echocardiographic findings were normal after one month.  Conclusions Intracranial aneurysmal SAH can lead to Takotsubo cardiomyopathy, the incidence of which is 4.58% approximately, and the prognosis is good. Echocardiographic findings are significantly important for early screening of Takotsubo cardiomyopathy, and coronary angiography (CAG) can be used to make a clear diagnosis in acute phase.

DOI: 10.3969/j.issn.1672-6731.2016.06.010