scholarly journals Performance of a thrombectomy device for aspiration of thrombus with various sizes based on a computational fluid dynamic modeling

2016 ◽  
Vol 61 (3) ◽  
pp. 337-344 ◽  
Author(s):  
Sajjad Soleimani ◽  
Gabriele Dubini ◽  
Giancarlo Pennati
Keyword(s):  
Coronary Artery ◽  
Heart Attack ◽  
Left Coronary Artery ◽  
Fluid Dynamic ◽  
Computational Approach ◽  
Thrombus Aspiration ◽  
Aspiration Thrombectomy ◽  
Time Period ◽  
Thrombectomy Device ◽  
Computational Fluid Dynamic Modeling

Abstract It is important to thoroughly remove the thrombus within the course of aspiration thrombectomy; otherwise, it may lead to further embolization. The performance of the aspiration thrombectomy device with a generic geometry is studied through the computational approach. In order to model the thrombus aspiration, a real left coronary artery is chosen while thrombi with various sizes are located at the bifurcation area of the coronary artery and, depending on the size of the thrombus, it is stretched toward the side branches. The thrombus occupies the artery resembling the blood current obstruction in the coronary vessel similar to the situation that leads to heart attack. It is concluded that the aspiration ability of the thrombectomy device is not linked to the thrombus size; it is rather linked to the aspiration pressure and thrombus age (organized versus fresh thrombus). However, the aspiration time period correlates to the thrombus size. The minimum applicable aspiration pressure is also investigated in this study.

scholarly journals Successful Percutaneous Coronary Intervention through a Severely Bent Artificial Ascending Aorta Using the DIO Thrombus Aspiration Catheter

2016 ◽  
Vol 2016 ◽  
pp. 1-3
Author(s):  
Akinori Fujikake ◽  
Takaaki Komatsu ◽  
Isao Taguchi
Keyword(s):  
Coronary Artery ◽  
Left Coronary Artery ◽  
Coronary Intervention ◽  
Ascending Aorta ◽  
Thrombus Aspiration ◽  
Coronary Syndrome ◽  
Coronary Artery Angiography ◽  
Percutaneous Coronary ◽  
The Right ◽  
Selection Of

A 66-year-old man was admitted to our institute because of chest pain. He had undergone replacement of the ascending aorta due to aortic dissection 9 years previously. We made a diagnosis of acute coronary syndrome, and coronary artery angiography was performed. Although the right coronary artery was successfully cannulated, a severe bend of the artificial aorta made it very difficult to advance the catheter into the left coronary artery. Ultimately, a DIO thrombus aspiration catheter was used to enter the left coronary artery, and a stent was implanted successfully. The DIO catheter is very useful when the selection of a guiding catheter is complicated, such as in the case of severe vessel tortuosity or a bend of the ascending aorta.

Repair of Anomalous Left Coronary Artery from Pulmonary Artery (ALCAPA) beyond Infancy

2013 ◽  
Vol 16 (4) ◽  
pp. 210 ◽  
Author(s):  
Sachin Talwar ◽  
Aandrei Jivendra Jha ◽  
Shiv Kumar Choudhary ◽  
Saurabh Kumar Gupta ◽  
Balram Airan
Keyword(s):  
Coronary Artery ◽  
Pulmonary Artery ◽  
Respiratory Tract ◽  
Left Coronary Artery ◽  
Nyha Class ◽  
Left Ventricular ◽  
Left Ventricular Ejection ◽  
Anomalous Left Coronary Artery ◽  
Tract Infections ◽  
Anomalous Left Coronary

Between January 2002 and December 2012, five patients (4 female) underwent corrective surgery for anomalous left coronary artery from pulmonary artery (ALCAPA). They were older than 1 year (range, 3-56 years). One of the 2 patients younger than 10 years had presented with congestive heart failure, and the other had experienced repeated episodes of lower respiratory tract infection since childhood. Of the remaining 3 adult patients, 2 had experienced angina with effort, and 1 patient had had repeated respiratory tract infections since childhood, with mild dyspnea on effort of New York Heart Association (NYHA) class II. Three patients had the anomalous left coronary artery implanted directly into the ascending aorta via coronary-button transfer, and 2 patients underwent coronary artery bypass with obliteration of the left main ostium. Two patients underwent concomitant mitral valve repair procedures, and 1 patient underwent direct closure of a perimembranous ventricular septal defect. Four patients survived the surgery, and 1 patient died because of a persistently low cardiac output. Follow-up times ranged from 3 months to 4 years. All survivors are in NYHA class I and have left ventricular ejection fractions of 45% to 60%, with moderate (n = 1), mild (n = 1), or no (n = 2) mitral insufficiency. We conclude that a few naturally selected patients with ALCAPA do survive beyond infancy and can undergo establishment of 2 coronary systems with satisfactory results.

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