Comparison of Usefulness of Percutaneous Coronary Intervention Guided by Angiography plus Computed Tomography Versus Angiography Alone Using Intravascular Ultrasound End Points

2011 ◽  
Vol 108 (12) ◽  
pp. 1728-1734 ◽  
Author(s):  
Jerzy Pregowski ◽  
Cezary Kepka ◽  
Mariusz Kruk ◽  
Gary S. Mintz ◽  
Lukasz Kalinczuk ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Percutaneous Coronary Intervention ◽  
Intravascular Ultrasound ◽  
Coronary Intervention ◽  
End Points ◽  
Percutaneous Coronary

scholarly journals Isolated right ventricular myocardial infarction: a case report

2020 ◽  
Author(s):  
Adeogo Akinwale Olusan ◽  
Paul Francis Brennan ◽  
Paul Weir Johnston
Keyword(s):  
Myocardial Infarction ◽  
Computed Tomography ◽  
Percutaneous Coronary Intervention ◽  
Coronary Artery ◽  
Right Ventricular ◽  
Primary Percutaneous Coronary Intervention ◽  
Coronary Intervention ◽  
Left Circumflex Artery ◽  
Right Ventricular Myocardial Infarction ◽  
Percutaneous Coronary

Abstract Background Isolated right ventricular myocardial infarction (RVMI) due to a recessive right coronary artery (RCA) occlusion is a rare presentation. It is typically caused by right ventricle (RV) branch occlusion complicating percutaneous coronary intervention. We report a case of an isolated RVMI due to flush RCA occlusion presenting via our primary percutaneous coronary intervention ST-elevation myocardial infarction pathway. Case summary A 61-year-old female smoker with a history of hypercholesterolaemia presented via the primary percutaneous coronary intervention pathway with sudden onset of shortness of breath, dizziness, and chest pain while walking. Transradial coronary angiography revealed a normal left main coronary artery, large left anterior descending artery that wrapped around the apex and dominant left circumflex artery with the non-obstructive disease. The RCA was not selectively entered despite multiple attempts. The left ventriculogram showed normal left ventricle (LV) systolic function. She was in cardiogenic shock with a persistent ectopic atrial rhythm with retrograde p-waves and stabilized with intravenous dobutamine thus avoiding the need for a transcutaneous venous pacing system. A computed tomography pulmonary angiogram demonstrated no evidence of pulmonary embolism while an urgent cardiac gated computed tomography revealed a recessive RCA with ostial occlusive lesion. A cardiac magnetic resonance imaging confirmed RV free wall infarction. She was managed conservatively and discharged to her local district general hospital after 5th day of hospitalization at the tertiary centre. Discussion This case describes a relatively rare myocardial infarction presentation that can present with many disease mimics which can require as in this case, a multi-modality imaging approach to establish the diagnosis.

P3587Tip detection method using the new short-tip IVUS with pull-back system which facilitates the 3D wiring technique in percutaneous coronary intervention for chronic total occlusion

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
K Tanaka ◽  
A Okamura ◽  
M Iwakura ◽  
H Nagai ◽  
A Sumiyoshi ◽  
...  
Keyword(s):  
Percutaneous Coronary Intervention ◽  
Intravascular Ultrasound ◽  
Chronic Total Occlusion ◽  
Distal Part ◽  
Detection Method ◽  
Coronary Intervention ◽  
Procedure Time ◽  
True Lumen ◽  
Total Occlusion ◽  
Percutaneous Coronary

Abstract Background The strategy of intravascular ultrasound (IVUS)-guided wiring for CTO PCI, that is, leading the second guidewire into the true lumen under observing by IVUS from subintimal space, is the last resort. We developed the angiography-based 3D wiring method. During establishment of the angiography-based 3D wiring method, we deduced that observation of the guidewire tip as well as the shaft named “The tip detection method” simplifies and facilitates 3D wiring under IVUS-guided wiring. Therefore, we produced New CTO IVUS which is the upgraded version of Navifocus WR IVUS by adding the pull-back transducer system. This pull-back system enables us to detect the tip as well as the shaft of the second guidewire in real time (tip detection method), which facilitates the 3D wiring technique under IVUS-guided wiring. Objective We evaluated the efficacy of the tip detection method during 3D wiring for CTO PCI with New CTO IVUS. Method We created a target pinpoint penetration model and performed the procedures using an experimental heartbeat model. The target (a tube with a lumen 0.6 mm in diameter) was placed in the distal part of a CTO 20 mm in length made of 2.5% agar. After the second guidewire (Conquest-12g) was advanced into the CTO lesion to within 5mm of the target using the angiography-based wiring, IVUS-guided wiring was performed by using Navifocus WR or New CTO IVUS each five times. Result The frequency of the puncture time was reduced using the new CTO IVUS compared to the Navifocus WR (1.7±0.8 vs. 28.8±23.2, p=0.17). The procedure time was significantly shorter using the new CTO IVUS compared to the Navifocus WR (103±61 vs. 459±373 seconds, p=0.04). Conclusion The tip detection method during 3D wiring with the new short tip IVUS with the pull-back system enables us to easily perform 3D wiring and will change the CTO PCI strategy.

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