"Fixed" splitting of the second heart sound in ventricular septal defect.

Heart Sounds are important things in the human body that can deliver information related to the heart condition. However, a recorded signal such as PCG and ECG that getting through Audicor still contain unexpected components or noise while the recording process happens it makes the result data from Audicor cannot directly use to recognize the condition of the heart. This research presents signal processing and data analysis to suppress the noise of the heart sounds that getting while the process of recording data happens. The cleaned heart sound will be processed in feature extraction by using FFT and PCA that capable to produce the feature both of the normal and abnormal heart sounds. For the normal case, we get the data from some healthy volunteers recorded by using Audicor. While the abnormal heart sound we focus to observe the data that contain Ventricular Septal Defect (VSD) that getting from a partner hospital. As a result, feature both normal and abnormal heart sounds can be separated.

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The Aortic and Pulmonary Components of the Second Heart Sound in Mitral Stenosis, Atrial Septal Defect and Tetralogy of Fallot

Cardiology ◽

10.1159/000169160 ◽

1967 ◽

Vol 50 (2) ◽

pp. 65-74 ◽

Cited By ~ 2

Author(s):

W. Meyer

Keyword(s):

Atrial Septal Defect ◽

Tetralogy Of Fallot ◽

Mitral Stenosis ◽

Septal Defect ◽

Heart Sound ◽

Second Heart Sound

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The mechanism of splitting of the second heart sound in atrial septal defect.

Circulation ◽

10.1161/01.cir.56.6.1047 ◽

1977 ◽

Vol 56 (6) ◽

pp. 1047-1053 ◽

Cited By ~ 18

Author(s):

J D O'Toole ◽

P S Reddy ◽

E I Curtiss ◽

J A Shaver

Keyword(s):

Atrial Septal Defect ◽

Septal Defect ◽

Heart Sound ◽

Second Heart Sound

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Presentation of Atrial Septal Defect (ASD) - Symptoms and Signs

Journal of Dhaka Medical College ◽

10.3329/jdmc.v20i1.8564 ◽

1970 ◽

Vol 20 (1) ◽

pp. 9-11

Author(s):

MS Haque ◽

HILR Khan ◽

RS Mahmud

Keyword(s):

Atrial Septal Defect ◽

Septal Defect ◽

Heart Sound ◽

Cross Sectional Study ◽

Sectional Study ◽

Cross Sectional ◽

First Heart Sound ◽

Second Heart Sound ◽

Physical Findings ◽

Symptoms And Signs

A cross-sectional study was carried out in the National Institute of Cardiovascular Diseases (NICVD), Dhaka, during the period of July, 1992 to June, 1993, which was designed to see the presentation and physical examination findings of atrial septal defect (ASD) patients in our population. A total of 60 ASD patients were included in the study, whose diagnoses were confirmed with echocardiography. Evaluation of the patients showed that 15 % of the patients were asymptomatic and they were detected incidentally. Common symptoms were shortness of breath on exertion (SOBE), Fatigue, palpitation, chest pain and recurrent respiratory infection (RTI). Common physical findings were left parasternal lift, loud first heart sound (S1), fixed splitting of second heart sound (S2) and ejection systolic murmur in pulmonary area. It was observed that all the symptoms and signs in our population correlate well with others.Key words: Atrial septal defect; symptoms and signs; echocardiography. DOI: http://dx.doi.org/10.3329/jdmc.v20i1.8564 J Dhaka Med Coll. 2011; 20(1) : 9-11

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