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Congenital Heart Disease: Causes, Diagnosis, Symptoms, and Treatments
RongRong Sun1, Min Liu1, Lei Lu1
1Graduate School, Nanjing University of Chinese Medicine, Nanjing, 210023, Jiangsu, China.
Insights
Congenital heart disease involves birth defects affecting heart structure. Causes range from genetics to maternal infections, with diagnosis via imaging and treatment including medication, surgery, or transplantation.
Area of Science:
- Cardiology
- Genetics
- Pediatrics
Background:
- Congenital heart disease (CHD) comprises structural heart abnormalities present at birth.
- Affecting approximately 1 in 100 children, CHD can stem from genetic factors or environmental exposures during pregnancy.
- Risk factors include maternal infections (e.g., Rubella), alcohol consumption, certain medications, and family history.
Purpose of the Study:
- To review the causes, diagnosis, symptoms, and treatments of congenital heart disease.
- To highlight the genetic underpinnings and risk factors associated with CHD.
- To provide an overview of diagnostic modalities and therapeutic interventions for CHD.
Main Methods:
- Review of existing literature on congenital heart disease.
- Analysis of diagnostic techniques including echocardiography, electrocardiography, chest X-ray, cardiac catheterization, and MRI.
- Examination of genetic analysis methods, including DNA extraction and sequencing.
Main Results:
- CHD encompasses various defects like valve abnormalities, septal defects, and heart muscle issues, impacting circulation and potentially leading to heart failure.
- Symptoms can be subtle, including fatigue, shortness of breath, and heart murmurs.
- Genetic analysis reveals defects in DNA nucleotide sequences, particularly in genes on chromosome 1.
Conclusions:
- Congenital heart disease requires comprehensive diagnosis using advanced imaging and genetic analysis.
- Treatment strategies are tailored to defect severity, ranging from medication to surgical repair or heart transplantation.
- Understanding risk factors and genetic predispositions is crucial for prevention and management.
Abstract:
The congenital heart disease includes abnormalities in heart structure that occur before birth. Such defects occur in the fetus while it is developing in the uterus during pregnancy. About 500,000 adults have congenital heart disease in USA (WebMD, Congenital heart defects medications, www.WebMD.com/heart-disease/tc/congenital-heart-defects-medications , 2014). 1 in every 100 children has defects in their heart due to genetic or chromosomal abnormalities, such as Down syndrome. The excessive alcohol consumption during pregnancy and use of medications, maternal viral infection, such as Rubella virus, measles (German), in the first trimester of pregnancy, all these are risk factors for congenital heart disease in children, and the risk increases if parent or sibling has a congenital heart defect. These are heart valves defects, atrial and ventricular septa defects, stenosis, the heart muscle abnormalities, and a hole inside wall of the heart which causes defect in blood circulation, heart failure, and eventual death. There are no particular symptoms of congenital heart disease, but shortness of breath and limited ability to do exercise, fatigue, abnormal sound of heart as heart murmur, which is diagnosed by a physician while listening to the heart beats. The echocardiogram or transesophageal echocardiogram, electrocardiogram, chest X-ray, cardiac catheterization, and MRI methods are used to detect congenital heart disease. Several medications are given depending on the severity of this disease, and catheter method and surgery are required for serious cases to repair heart valves or heart transplantation as in endocarditis. For genetic study, first DNA is extracted from blood followed by DNA sequence analysis and any defect in nucleotide sequence of DNA is determined. For congenital heart disease, genes in chromosome 1 show some defects in nucleotide sequence. In this review the causes, diagnosis, symptoms, and treatments of congenital heart disease are described.
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