Valvular Heart Disorder

2020 ◽  
Author(s):  
Keyword(s):  
Heart Disorder

scholarly journals A Suggestive Diagnostic Technique For Early Identification Of Acyanotic Heart Disorders From Infant’s Cry

2013 ◽  
pp. 200-206
Author(s):  
Radhika Rani L ◽  
S. Chandra lingam ◽  
Anjaneyulu T ◽  
Satyanarayana K
Keyword(s):  
Fundamental Frequency ◽  
Linear Prediction ◽  
Vocal Tract ◽  
Early Stage ◽  
Heart Defects ◽  
Diagnostic Technique ◽  
Heart Disorder ◽  
Pitch Frequency ◽  
Chest X Ray ◽  
Heart Disorders

Congenital Heart Defects (CHD) are the critical heart disorders that can be observed at the birth stage of the infants. These are classified mainly into two, Cyanotic and Acyanotic. The present paper concentrates on the Acyanotic heart disorders. Acyanotic heart disorder cannot be observed on external checkup, whereas bluish skin is the indication for the infant affected with Cyanotic disorder. Acyanotic heart disorder can only be diagnosed using chest X-Ray, ECG, Echocardiogram, Cardiac Catheterization and MRI of the Heart. The present work aims at estimating the fundamental frequency (pitch) and the vocal tract resonant frequencies (formants) from the cry signal of the infants. The pitch frequency and formant frequencies are estimated using frequency domain (Cepstrum) and Linear Prediction Code (LPC) methods. The results show that the fundamental frequency of the cry signal was between 600Hz-800Hz for the infants with Acyanotic heart disorders. This fundamental frequency helps in identifying Acyanotic heart disorders at an early stage.

Industry Watch

2004 ◽  
Vol 08 (02) ◽  
pp. 59-64
Keyword(s):  
Gene Therapy ◽  
Cancer Gene Therapy ◽  
Heart Disorder ◽  
Cancer Gene

CSL Focuses on Plasma Industry. First Cancer Gene Therapy Approved in China. Top 100 Chinese Medical Enterprises in 2003. GlaxoSmithKline Launches New Cancer and Heart Disorder Drugs.

scholarly journals Influence of Diploid Pollinizer Frequencies on Triploid Watermelon Quality and Yields

2003 ◽  
Vol 13 (1) ◽  
pp. 58-61 ◽  
Author(s):  
Dena C. Fiacchino ◽  
S. Alan Walters
Keyword(s):  
Significant Interaction ◽  
Citrullus Lanatus ◽  
Hollow Heart ◽  
Heart Disorder ◽  
Soluble Solids ◽  
Growing Seasons ◽  
Frequency Interaction ◽  
Quadratic Response ◽  
Seedless Watermelon ◽  
Triploid Watermelon

During the 1999 and 2000 growing seasons in Illinois, studies were conducted to determine the influence of two pollinizers (`Crimson Sweet' and `Fiesta') and three pollinizer frequencies (11%, 20%, and 33%) on `Millionaire' seedless watermelon (Citrullus lanatus) quality and yields. More large-sized [>16 lb (7.2 kg)] `Millionaire' watermelons were produced when `Crimson Sweet' was used as the pollinizer compared to `Fiesta', which resulted in `Crimson Sweet' leading to greater marketable and total `Millionaire' yields. Pollinizers responded similarly over the pollinizer frequencies for `Millionaire' watermelon yields as no pollinizer by pollinizer frequency interaction was observed. The 20% and 33% pollinizer frequencies produced similar `Millionaire' yields per acre and both resulted in greater yields compared to the 11% pollinizer frequency. Soluble solids in `Millionaire' fruits were not influenced by pollinizer or pollinizer frequency. However, hollow heart disorder followed a quadratic response with respect to pollinizer frequency with the lowest amount of hollow heart observed at the 33% pollinizer frequency and greatest at the 11% pollinizer frequency. No significant interaction (P ≤ 0.05) was observed for pollinizer by pollinizer frequency for hollow heart disorder in `Millionaire'; although, more hollow heart disorder in `Millionaire' was observed when `Fiesta' was used as the pollinizer.

Polymorphic ventricular tachycardias including torsade de pointes

ESC CardioMed ◽  
2018 ◽  
pp. 2293-2298
Author(s):  
L. Brent Mitchell
Keyword(s):  
Ventricular Tachycardia ◽  
Qt Interval ◽  
Torsade De Pointes ◽  
Term Treatment ◽  
Heart Disorder ◽  
Interval Prolongation ◽  
Cardioverter Defibrillator ◽  
Qt Interval Prolongation ◽  
Long Term Treatment

Polymorphic ventricular tachycardia (PMVT) is a rapid ventricular tachycardia in which the QRS complexes vary in coupling interval, morphology, and axis on a beat-to-beat basis. PMVT occurs in two distinct forms: PMVT without QT interval prolongation and PMVT with QT interval prolongation. The two types differ in important ways with respect to their differential diagnosis and treatment. PMVT without QT interval prolongation usually emerges in the setting of an unstable structural heart disorder, such as acute ischaemia or decompensated heart failure. Treatment is directed at the underlying heart disorder, correction of acid–base disturbances, hypoxia, and electrolyte abnormalities along with beta-blocking therapy and amiodarone. Invasive antiarrhythmic interventions, such as sympathetic denervation and transcatheter ablation, are occasionally required. Long-term treatment often includes an implantable cardioverter defibrillator. PMVT with QT interval prolongation, known as torsade de pointes VT, occurs when repolarization reserve has been exhausted by either inherited or acquired factors that prolong the QT interval. Classical features of the ‘twisting-of-the-points’ polymorphism and the short–long–short initiation sequence are common but are not universal. Treatment is directed at removal of the cause of the QT interval prolongation, correction of electrolyte disturbances (hypokalaemia and hypomagnesaemia), supplemental magnesium therapy, and treatments to shorten the QT interval such as isoproterenol, pacing, or lidocaine. Long-term treatment is focused on avoidance of QT interval prolonging factors. If the likelihood of subsequent recurrence is not low, consideration is given to placement of a permanent pacemaker or implantable cardioverter defibrillator.

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