scholarly journals Anatomical variants of left circumflex artery, coronary sinus and mitral valve can determine safety of percutaneous mitral annuloplasty

2013 ◽  
Vol 20 (3) ◽  
pp. 235-240 ◽  
Author(s):  
Rafał Młynarski ◽  
Agnieszka Młynarska ◽  
Maciej Sosnowski
Keyword(s):  
Mitral Valve ◽  
Coronary Sinus ◽  
Circumflex Artery ◽  
Mitral Annuloplasty ◽  
Left Circumflex Artery ◽  
Anatomical Variants

scholarly journals Left Circumflex Artery Rupture with Left Atrial Tamponade and Functional Mitral Stenosis

2018 ◽  
Vol 2018 ◽  
pp. 1-5
Author(s):  
Weiting Huang ◽  
Khaled Mohamed Emadeldin Moheb Hammad ◽  
Victor Tar Toong Chao ◽  
Khung Keong Yeo
Keyword(s):  
Left Atrium ◽  
Coronary Sinus ◽  
Mitral Stenosis ◽  
Left Atrial ◽  
Pulmonary Veins ◽  
Fluid Collection ◽  
Artery Dissection ◽  
Circumflex Artery ◽  
Left Circumflex Artery ◽  
Coronary Syndrome

The growth in percutaneous transluminal devices has enabled operators to tackle more complex, native, and post-bypass surgery anatomy. However, complications such as coronary artery dissection, coronary perforation, retrograde aortic dissection, arrhythmias, and acute coronary syndrome still occur with resulting mortality rates of up to 4.2% in complex interventions. Perforation of the circumflex artery is of particular interest in view of its position and relation to the surrounding cardiac structures. This is a site of potential fluid collection, and as the left atrium is fixed to the parietal pericardium at the entry of the pulmonary veins, fluid in the oblique sinus can accumulate enough pressure to compress the left atrium and the coronary sinus. We present a case of left circumflex artery perforation which demonstrates the physiologic complications of coronary sinus and left atrial compression and the resultant functional mitral stenosis.

scholarly journals Superdominant Right Coronary Artery with Absent Left Coronary Artery and Left Circumflex Artery with Anomalous Left Anterior Descending Artery

2022 ◽  
Author(s):  
Bhavneet Singh ◽  
Rekha Gupta ◽  
Sreenivas Reddy
Keyword(s):  
Coronary Artery ◽  
Right Coronary Artery ◽  
Coronary Sinus ◽  
Left Coronary Artery ◽  
Therapeutic Modality ◽  
Single Coronary Artery ◽  
Circumflex Artery ◽  
Left Circumflex Artery ◽  
Single Vessel ◽  
Left Anterior Descending Artery

AbstractThe occurrence of super-dominant “single coronary artery” is an extremely rare and seldom reported phenomenon. The heart is dependent on a single vessel which makes its occlusion, if present, catastrophic. Here, the authors present an extremely rare combination of superdominant right coronary artery coexisting with absent left coronary artery and left circumflex artery with abnormal origin of left anterior descending artery from right coronary sinus. Precise morphological and physiological knowledge and evaluation of these anomalies is a must for opting the best available therapeutic modality and better prognosis.

scholarly journals Design and development of a catheter-based tunable device for percutaneous mitral repair through coronary sinus

2021 ◽  
Author(s):  
Ata Taghipour
Keyword(s):  
Mitral Regurgitation ◽  
Coronary Sinus ◽  
Cardiac Disease ◽  
Large Scale ◽  
Heart Association ◽  
Circumflex Artery ◽  
Fem Simulations ◽  
Left Circumflex Artery ◽  
Mitral Repair ◽  
Tunable Device

According to the American Heart Association, the cardiac disease accounts for over 800,000 deaths every year (1 of every 3 deaths) in the US alone. Mitral regurgitation, which occurs in 2% of the population, has become the dominant valvular disease contributing to the high death rate caused by cardiac disease. The existing percutaneous treatments of mitral regurgitation suffer from compression of left circumflex artery, limiting their performance and causing serious iatrogenic consequences. Moreover, they are not tunable resulting in limited functionality. In this thesis, a catheter-based tunable device is designed to be implanted inside the coronary sinus for improving mitral regurgitation grade while minimizing the applied force on the left circumflex artery. A comprehensive computed tomography scan image analysis and experiments are performed to extract the required information for the design of the device and its evaluation with FEM simulations. A new effective engagement mechanism for integrating the device with the steerable catheter is designed and tested through large-scale experiments. Additionally, a temperature insensitive force/torque sensor is designed for guiding and introducing the device. This sensor can also be used in other catheter-based devices such as cardiac ablation catheters. The sensing structure of the sensor and its sensing method are evaluated by FEM simulations and large-scale prototyping. The actual-scale prototype of the sensor is fabricated, and the experiments are performed for analyzing the static and dynamic response of the sensor and its temperature cross-sensitivity.

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