We reported up-to-date national estimates of the prevalence of CM, which is important for monitoring trends, determining service planning, and assessing disease burden because of congenital malformations in the United States of America. We also showed a strong association between CM and prematurity. Further study of this association is needed to provide insight into the etiology of these relatively common public health problems.
Current estimates of the incidence of congenital heart disease (CHD) are derived from small clinical studies and metaanalyses. For the true incidence of CHD in the United States of America to be estimated, a single large representative population must be analyzed. All the data in this study were derived from the Nationwide Inpatient Sample database. The study determined the overall and lesion-specific incidences of CHD diagnoses among all birth hospitalizations in 2008, stratified by race, gender, socioeconomic status, and hospital geographic location. The study identified 13,093 CHD diagnoses among 1,204,887 birth hospitalizations, yielding an incidence of 10.8 per 1,000, with a predominance of mild lesions and septal defects. Atrial septal defect (ASD) and pulmonic stenosis were more common among females, whereas aortic stenosis, coarctation of the aorta, hypoplastic left heart syndrome, and d-transposition of great arteries were more common among males. No racial difference was observed in the overall CHD incidence. However, isolated patent ductus arteriosus (PDA) and ventricular septal defects (VSDs) were more common among Caucasians, whereas ASDs were more common among Hispanics. The incidences of CHD diagnoses were similar for all socioeconomic classes except the lowest socioeconomic class, which had a significantly lower CHD incidence. There was no geographic or seasonal variation in CHD incidence. This study demonstrated the incidence of echocardiographically confirmed CHD diagnosis to be 10.8 per 1,000 live births, marked by a high proportion of mild cardiac lesions and isolated PDAs. The high incidence of isolated PDAs in this study may be explained by the inclusion of only CHD diagnoses during birth hospitalization.
Although the epidemiology of congenital heart disease (CHD) has been described, the authors believe changes in prenatal factors such as termination of pregnancy for fetal anomaly and prenatal vitamin supplementation have altered the birth prevalence of severe CHD. This population-based study reviewed the Nationwide Inpatient Sample (NIS) database and identified all cases with a severe CHD diagnosis among all live birth entries from 1999 to 2008. A time trend analysis then was performed for specific severe CHD diagnoses stratified by race, socioeconomic status, and geographic location. Overall, severe CHD prevalence was 147.4 per 100,000 live births, with a temporal decrease in prevalence from 168.9 per 100,000 in 1999 to 129.3 per 100,000 in 2008 (p = 0.03). Among the 12 severe CHD diagnoses included in our cohort, the prevalence of truncus arteriosus (p = 0.02), tetralogy of Fallot (p = 0.001), hypoplastic left heart syndrome (p = 0.001), and pulmonary atresia (p = 0.01) decreased significantly during the study period. The observed prevalence trends varied significantly by race (Caucasians), socioeconomic class (upper income quartiles), and geographic location (Northeast and West regions). The study findings showed a temporal decrease in severe CHD prevalence, which varied by race, socioeconomic status, and geographic location. The authors speculated that the observed trend might be due to increased termination of fetuses with prenatally diagnosed CHD. The impact of sociodemographic variables on the observed prevalence trend might be due to differences in access to specialized perinatal care and fetal heart programs or because of variability in termination of pregnancy.
Background:There is a known association between congenital heart disease (CHD) and other congenital anomalies (CA). These associations have been altered by changes in prenatal factors in recent time. We reviewed the largest database of inpatient hospitalization information and analyzed the current association between common CHD diagnoses and other congenital anomalies.Materials and Methods:Case-control study design. We reviewed the Nationwide Inpatient Sample (NIS) database from 1998 to 2008 and identified all live births with CHD diagnosis (case) and live births without CHD diagnosis (control). We compared prevalence of associated congenital anomalies between the case and control groups.Results:Our cohort consisted of 97,154 and 12,078,482 subjects in the case and control groups, respectively. In the CHD population, prevalence of non-syndromic congenital anomaly (NSCA), genetic syndrome (GS), and overall extra-cardiac congenital anomaly (CA) were 11.4, 2.2, and 13.6%, respectively. In the control group, prevalence of NSCA, GS, and CA were 6.7, 0.3, and 7.0%, respectively. NSCA (odds ratio (OR): 1.88, confidence interval (CI): 1.73-1.94), GS (OR 2.52, CI 2.44-2.61), and overall CA (OR: 2.01, CI: 1.97-2.14) were strongly associated with CHD. Prevalence of GS and multiple organ-system CA decreased significantly over the study period.Conclusions:This is the largest and most comprehensive population-based study evaluating association between CHD and extra-cardiac malformation (ECM) in newborns. There was significant decrease in prevalence of GS and multiple CA over the study period.
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