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1.
Cardiology ; 139(3): 161-168, 2018.
Article in English | MEDLINE | ID: mdl-29393099

ABSTRACT

OBJECTIVE: To determine the prevalence and clinical effects of myocardial bridging (MB) in patients with apical hypertrophic cardiomyopathy (AHCM). METHODS: Angiograms from 212 AHCM patients were reviewed to identify MB. The patients were classified into 2 groups: AHCM with and AHCM without MB. We reviewed patient records on cardiovascular (CV) risk factors, symptoms, CV events, and CV mortality. RESULTS: In all, 60 patients with MB and 100 without MB were included. Rates of angina (61.7 vs. 40%; p = 0.008), mimicking non-ST-segment elevation myocardial infarction (15 vs. 3%, p = 0.013), and Canadian Cardiovascular Society class III/IV angina (18.3 vs. 4%; p = 0.003) were higher in patients with MB than in those without. Mean follow-up periods (65.5 ± 50.5 vs. 64.4 ± 43.6 months, p = 0.378) and CV mortality (3.3 vs. 1%; p = 0.652) were similar in the 2 groups. Kaplan-Meier estimates demonstrated that CV event-free survival rates were lower in patients with MB than in those without (71.7 vs. 88%; p = 0.022). MB, late gadolinium enhancement, and female sex were independent risk factors for CV events in a multivariate Cox regression analysis adjusted for other risk factors. CONCLUSION: More serious symptoms and a higher risk of CV events were observed in AHCM patients with MB than in those without MB. CV mortality was similar in these 2 groups.


Subject(s)
Cardiomyopathy, Hypertrophic/complications , Myocardial Bridging/diagnostic imaging , Myocardial Bridging/mortality , Adult , Angiography , Beijing/epidemiology , Cardiomyopathy, Hypertrophic/diagnostic imaging , Cardiomyopathy, Hypertrophic/physiopathology , Female , Humans , Magnetic Resonance Imaging , Male , Middle Aged , Retrospective Studies , Risk Factors , Survival Analysis
2.
Sci Rep ; 7(1): 9506, 2017 08 25.
Article in English | MEDLINE | ID: mdl-28842653

ABSTRACT

Data on procedural complications and long term survival after alcohol septal ablation (ASA) in Chinese patients with obstructive hypertrophic cardiomyopathy (HOCM) are lacking. We aimed to investigate long-term survival of HOCM patients after ASA and compared to the non-obstructive hypertrophic cardiomyopathy(NOHCM). A total of 233 patients with HOCM and a peak pressure gradient of ≥50 mm Hg at rest or with provocation were consecutively enrolled from Fuwai Hospital in China between 2000 and 2012. Another 297 patients without left ventricular outflow tract obstruction were regarded as control group. Periprocedural mortality of ASA were low (0.89%). Periprocedural lethal ventricular arrhythmia occurred in 9 patients (4.0%). Alcohol volume (RR 1.44, 95% CI: 1.03-2.03, P = 0.034) and age ≤40 years old (RR 4.63, 95% CI: 1.07-20.0, P = 0.040) were independent predictors for periprocedural lethal ventricular arrhythmia. The 10- year overall survival was 94.6% in the ASA group, similar with 92.9% in the NOHCM group (P = 0.930). In conclusion, periprocedural mortality and complications were rare in ASA. Long term survival after ASA were satisfactory and comparable to NOHCM. Patients under 40 years old should be more cautious undergoing ASA, for these patients were more likely to endure lethal ventricular arrhythmia during periprocedural period of ASA.


Subject(s)
Ablation Techniques/adverse effects , Cardiomyopathy, Hypertrophic/complications , Ethanol/administration & dosage , Heart Septum/drug effects , Heart Septum/pathology , Postoperative Complications , Adult , Biomarkers , Cardiac Surgical Procedures/adverse effects , Cardiac Surgical Procedures/methods , Cardiomyopathy, Hypertrophic/diagnosis , Cardiomyopathy, Hypertrophic/mortality , Cardiomyopathy, Hypertrophic/therapy , China , Female , Follow-Up Studies , Humans , Kaplan-Meier Estimate , Male , Middle Aged , Time Factors , Treatment Outcome
3.
Clin Cardiol ; 40(1): 26-31, 2017 Jan.
Article in English | MEDLINE | ID: mdl-27748528

ABSTRACT

BACKGROUND: Hypertrophic cardiomyopathy (HCM) is associated with poor prognosis. It has been reported that there is no difference in in-hospital mortality after acute myocardial infarction (AMI) between patients with and without HCM. However, whether there is a difference in long-term survival after AMI between patients with and without HCM remains unclear. HYPOTHESIS: Long-term survival after AMI is worse in patients with vs without HCM. METHODS: The clinical profiles of 91 consecutive patients with HCM and AMI (HCM group) and 91 sex- and age-matched patients with AMI without HCM (non-HCM group) were analyzed. The study endpoint was all-cause mortality. RESULTS: During a follow-up period of 4.9 ± 3.6 years, all-cause mortality occurred in 25 patients (27.5%) in the HCM group and 13 patients (14.3%) in the non-HCM group. The survival of the HCM group was inferior to that of the non-HCM group (log-rank P = 0.039). During the first year of follow-up, 3 deaths (3.3%) occurred in the HCM group and 7 deaths (7.7%) occurred in the non-HCM group (log-rank P = 0.177). Among patients who survived beyond the first year of follow-up (172 patients), the annual mortality rates were 6.3% (95% confidence interval: 4.0%-9.3%) in the HCM group and 1.6% (95% confidence interval: 0.6%-3.5%) in the non-HCM group (log-rank P = 0.001). CONCLUSIONS: AMI patients with HCM exhibited worse long-term survival than did AMI patients without HCM.


Subject(s)
Cardiomyopathy, Hypertrophic/complications , Myocardial Infarction/mortality , Age Factors , Cardiomyopathy, Hypertrophic/mortality , China/epidemiology , Female , Follow-Up Studies , Hospital Mortality/trends , Humans , Male , Middle Aged , Myocardial Infarction/complications , Prognosis , Retrospective Studies , Survival Rate/trends , Time Factors
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