Mysterious window: A right coronary artery‐left ventricular fistula diagnosed by multiple imaging approaches

2021 ◽  
Author(s):  
Yi Yu ◽  
Qian Wang ◽  
Cheng Li ◽  
Jian Sun ◽  
Wei Li ◽  
...  
Keyword(s):  
Coronary Artery ◽  
Right Coronary Artery ◽  
Left Ventricular ◽  
Multiple Imaging

scholarly journals Mysterious window: A right coronary artery-left ventricular fistula diagnosed by multiple imaging methods

2021 ◽  
Author(s):  
Yi Yu ◽  
Qian Wang ◽  
Cheng Li ◽  
Jian Sun ◽  
Wei Li ◽  
...  
Keyword(s):  
Coronary Artery ◽  
Left Ventricle ◽  
Right Coronary Artery ◽  
Giant Aneurysm ◽  
Left Ventricular ◽  
Chest Tightness ◽  
Coronary Artery Angiography ◽  
Multiple Imaging ◽  
Dual Source ◽  
Proximal Right Coronary Artery

Prevalence of primary coronary cameral fistula (CCF) is extremely rare, especially for CCF with the drainage site into the left ventricle. We describe a 45-year-old patient with chest tightness in whom a giant aneurysm associated with proximal right coronary artery (RCA), and the distal end of RCA terminated into the left ventricle through a fistula was discovered by echocardiography. Dual-source computer tomography revealed the CCF-related giant RCA aneurysm. The drainage site and coexistent abnormality could not be visualized well by coronary artery angiography because of the severely diluted contrast medium into the aneurysm. Finally, the patient received surgical treatment and is asymptomatic now.

scholarly journals Right coronary artery ligation in mice: a novel method to investigate right ventricular dysfunction and biventricular interaction

2019 ◽  
Vol 316 (3) ◽  
pp. H684-H692 ◽  
Author(s):  
Pierre Sicard ◽  
Timothée Jouitteau ◽  
Thales Andrade-Martins ◽  
Abdallah Massad ◽  
Glaucy Rodrigues de Araujo ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Coronary Artery ◽  
Infarct Size ◽  
Right Ventricular ◽  
Right Coronary Artery ◽  
Ventricular Dysfunction ◽  
Left Ventricular ◽  
Coronary Artery Ligation ◽  
Inferior Myocardial Infarction ◽  
Acute Inferior Myocardial Infarction

Right ventricular (RV) dysfunction can lead to complications after acute inferior myocardial infarction (MI). However, it is unclear how RV failure after MI contributes to left-sided dysfunction. The aim of the present study was to investigate the consequences of right coronary artery (RCA) ligation in mice. RCA ligation was performed in C57BL/6JRj mice ( n = 38). The cardiac phenotypes were characterized using high-resolution echocardiography performed up to 4 wk post-RCA ligation. Infarct size was measured using 2,3,5-triphenyltetrazolium chloride staining 24 h post-RCA ligation, and the extent of the fibrotic area was determined 4 wk after MI. RV dysfunction was confirmed 24 h post-RCA ligation by a decrease in the tricuspid annular plane systolic excursion ( P < 0.001) and RV longitudinal strain analysis ( P < 0.001). Infarct size measured ex vivo represented 45.1 ± 9.1% of the RV free wall. RCA permanent ligation increased the RV-to-left ventricular (LV) area ratio ( P < 0.01). Septum hypertrophy ( P < 0.01) was associated with diastolic septal flattening. During the 4-wk post-RCA ligation, LV ejection fraction was preserved, yet it was associated with impaired LV diastolic parameters ( E/ E′, global strain rate during early diastole). Histological staining after 4 wk confirmed the remodeling process with a thin and fibrotic RV. This study validates that RCA ligation in mice is feasible and induces RV heart failure associated with the development of LV diastolic dysfunction. Our model offers a new opportunity to study mechanisms and treatments of RV/LV dysfunction after MI. NEW & NOTEWORTHY Right ventricular (RV) dysfunction frequently causes complications after acute inferior myocardial infarction. How RV failure contributes to left-sided dysfunction is elusive because of the lack of models to study molecular mechanisms. Here, we created a new model of myocardial infarction by permanently tying the right coronary artery in mice. This model offers a new opportunity to unravel mechanisms underlying RV/left ventricular dysfunction and evaluate drug therapy.

scholarly journals A case of Right coronary artery-left ventricular fistul with a giant right coronary aneurysm

2020 ◽  
Author(s):  
Wen jie Diao ◽  
Chao Shi ◽  
Ge Liu ◽  
Hai hui Li ◽  
Jin jin Meng ◽  
...  
Keyword(s):  
Coronary Artery ◽  
Right Coronary Artery ◽  
Coronary Aneurysm ◽  
Left Ventricular

A rare right coronary artery–left ventricular fistula with giant coronary artery and aneurysm

2019 ◽  
Vol 20 (5) ◽  
pp. 604-604
Author(s):  
Jing Ping Sun ◽  
Liu Yang ◽  
Zhen Zhao ◽  
Xiaoli Zhang ◽  
Genshan Ma
Keyword(s):  
Coronary Artery ◽  
Right Coronary Artery ◽  
Left Ventricular
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