HOW TREATMENT CHANGES SLEEP APNEA SYNDROME IN PATIENTS WITH PULMONARY ARTERIAL HYPERTENSION

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Gender Differences in Patients with Takotsubo Cardiomyopathy: Multi-Center Registry from Tokyo CCU Network.

The clinical features of gender differences in takotsubo cardiomyopathy (TC) remain to be determined. The aim of this study was to evaluate the differences in clinical characteristics of male and female patients with TC.We obtained the clinical information of 368 patients diagnosed with TC (84 male, 284 female) from the Tokyo CCU Network database collected from 1 January 2010 to 31 December 2012; the Network is comprised of 71 cardiovascular centers in the Tokyo (Japan) metropolitan area. We attempted to characterize clinical differences during hospitalization, comparing male and female patients with TC.There were no significant differences in apical ballooning type, median echocardiography ejection fraction, serious ventricular arrhythmias (such as ventricular tachycardia or fibrillation), or cardiovascular death between male and female patients. Male patients were younger than female patients (median age at hospitalization for male patients was 72 years vs. 76 years for female patients; p = 0.040). Prior physical stress was more common in male than female patients (50.0% vs.31.3%; p = 0.002), while emotional stress was more common in female patients (19.0% vs. 31.0%; p = 0.039). Severe pump failure (defined as Killip Class > III) (20.2% vs. 10.6%; p = 0.020) and cardiopulmonary supportive therapies (28.6% vs. 12.7%, p < 0.001) were more common in male than female patients. Multivariate analysis revealed that male gender (odds ratio = 4.32, 95% CI = 1.41-13.6, p = 0.011) was an independent predictor of adverse composite cardiac events, including cardiovascular death, severe pump failure, and serious ventricular arrhythmia.Cardiac complications in our dataset appeared to be more common in male than female patients with TC during their hospitalization. Further investigation is required to clarify the underlying mechanisms responsible for the observed gender differences

Stepwise multiple logistic regression analysis.

<p>Stepwise multiple logistic regression analysis.</p

Cardiac complications and cardiopulmonary supportive therapies are shown by gender.

<p>Composite cardiac events are defined as cardiovascular death, severe pump failure, or serious ventricular arrhythmias (such as ventricular tachycardia/ventricular fibrillation (VT/VF)). Killip: Killip Class; ventricular arrhythmias: VT/VF; respiratory support: mechanical ventilation or non-invasive positive pressure ventilation; IABP: intra-aortic balloon pump; PMI/ICD: implantation of pacemaker or cardioverter-defibrillator; AF/AFL: atrial fibrillation or flutter. *<i>P</i> value: < 0.05.</p

Electrocardiographic findings, echocardiographic findings, and laboratory data.

<p>Electrocardiographic findings, echocardiographic findings, and laboratory data.</p

Preceding physical and emotional stresses displayed by gender.

<p>Preceding physical and emotional stresses displayed by gender.</p