Background: Dilated cardiomyopathy (DCM) is a well-recognized cause of cardiovascular morbidity and mortality.Objectives: To evaluate the prognostic implications of the restrictive left ventricular filling pattern (RFP) in dilated cardiomyopathy.Methods: Patients with DCM admitted to Ibn AL-Bitar Hospital for Cardiac Surgery, Baghdad-Iraq, from May 2006 to August 2008, underwent a full clinical evaluation and Doppler echocardiography study. Patients were classified into three groups: Group I had persistent restrictive filling pattern; Group II had reversible restrictive filling pattern; and Group III had nonrestrictive filling pattern. Results: The current study was conducted on a total number of 80 patients with DCM, fifty (62.5 %) were males and 30(37.5%) were females with a male to female ratio 1.6:1. Patients with restrictive filling pattern (Group I&II) were 51 (63.8%), while patients with nonrestrictive filling pattern (Group III) were 29 (36.2%). During follow up, patients with persistent restrictive filling pattern (30; 37.5%) had higher New York Heart Association (NYHA) class symptoms, low ejection fraction (EF) and higher mortality; 6 (20%) died within the first year, 6 (20%) died in the second year. Clinical improvement was significantly frequent in Group II and III than Group I.Conclusions: In patients with DCM, the persistence of restrictive filling at 3 months is associated with a high mortality the patients with reversible restrictive filling have a high probability of improvement and excellent survival.
Clinical and Doppler Study of Restrictive Filling Pattern in Patients with Dilated Cardiomyopathy
Doppler echocardiography
Restrictive Filling Pattern
Dilated cardiomyopathy
Publication Date
Tue Jan 18 2022
Journal Name
Materials Science Forum
The Effect of Gamma Radiation on the Manufactured HgBa<sub>2</sub>Ca<sub>2</sub>Cu<sub>2.4</sub>Ag<sub>0.6</sub>O<sub>8+δ</sub> Compound
Gamma doses radiation
crystal size
strain
degree of crystallinity
Scherrer
crystallinity and Williamson equations.
In this article four samples of HgBa2Ca2Cu2.4Ag0.6O8+δ were prepared and irradiated with different doses of gamma radiation 6, 8 and 10 Mrad. The effects of gamma irradiation on structure of HgBa2Ca2Cu2.4Ag0.6O8+δ samples were characterized using X-ray diffraction. It was concluded that there effect on structure by gamma irradiation. Scherrer, crystallization, and Williamson equations were applied based on the X-ray diffraction diagram and for all gamma doses, to calculate crystal size, strain, and degree of crystallinity. I
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