Maximal CS caliber occurs during ventricular systole. Patients with poor left ventricular systolic function show mild CS dilatation. Greater CS dilatation is present in pa- tients with persistent left superior vena cava, and huge dilata- tion when this anomaly is accompanied by absence of a right superior vena cava.
Dilation of the coronary sinus on echocardiogram: prevalence …
Coronary sinus dilation was observed in 81% of a selected group of patients with pulmonary hypertension in the absence of structural disease of the tricuspid valve. Coronary sinus dilation is related to RAP and RA size, but not to RV size, degree of TR, RVP, PA pressure, or PVR.
The diameter of the coronary sinus could be mea- sured in all patients. It was measured 1 cm proximal to the orifice. The maximum diameter ranged from 6 to 14 mm (mean 9 _+ 2 mm). Flow Velocity Characteristics With transesophageal echocardiography, color-flow mapping identified coronary sinus flow in all patients.
Coronary sinus dilatation is a sign of impaired right ventricular ...
Idiopathic DCM was defined by the presence of both a left ventricular ejection fraction (LVEF) <45% (as revealed by echocardiography) and a dilated LV cavity in the absence of coronary artery stenosis >50% (as determined by coronary angiography), valvular heart disease, secondary cardiac muscle disease attributable to any known systemic ...
unusual case of dilated coronary sinus: case report and clinical ...
2021年10月9日 · The presence of a dilated coronary sinus (CS) assessed by transthoracic echocardiography (TTE) is highly suggestive of inferior or superior vena cava (SVC) anomalies, in the absence of a shunt. The most frequent finding is the persistence of a left superior vena cava (LSVC): well-known feature to electrophysiologists.
Persistent Left Superior Vena Cava Draining into the Coronary Sinus…
A dilated coronary sinus on echocardiography should always raise the suspicion of a PLSVC as it has important clinical implications. The diagnosis should be confirmed by saline contrast echocardiography. We report a patient with persistent left superior vena cava with an enlarged coronary sinus and normal right superior vena cava.
Echocardiography of the coronary sinus in adults - PMC
The coronary sinus (CS) is a small tubular structure just above the posterior left atrioventricular junction. The CS can be imaged in several different echocardiographic views. Using zoom M‐mode recordings of the CS in apical two‐chamber view, CS caliber can be sharply imaged and easily measured during different phases of the cardiac cycle.
THE DILATED CORONARY SINUS: UTILITY OF CORONARY SINUS …
PURPOSE: Pulmonary hypertension and elevated right atrial (RA) pressure cause dilation of the coronary sinus (CS), which is well-visualized on 2D echocardiography. Congenitally persistent connection of the left superior vena cava (LSVC) to the CS occurs in ∼0.3% of the population, and causes dilation of the CS.
Dilation of the Coronary Sinus on Echocardiogram: Prevalence …
2001年1月1日 · Coronary sinus dilation is directly related to RAP and RA size, but not to RV size, degree of TR, RVE, PAP, or to PVR. Once dilated, the CS diameter remains unchanged after decreases in right-sided heart dimensions and PAP induced by PTE.
Dilated Coronary Sinus Echo: An Advanced Imaging Technique …
2024年7月31日 · Dilated coronary sinus echo is an echocardiographic technique that involves assessing the diameters of the coronary sinus and other cardiac structures. It is commonly used to determine left ventricular filling pressures and evaluate conditions such as constrictive pericarditis, cardiac tamponade, and pericardial effusion.