scholarly journals Successful interdisciplinary treatment as a rare cause of acute myocardial ischemia by intermittent tumor-associated obstruction of the left main coronary artery– A case report

2021 ◽  
Author(s):  
Katharina Huenges ◽  
Franz Hartmann ◽  
Bernd Panholzer ◽  
Thomas Puehler
Keyword(s):  
Case Report ◽  
Coronary Artery ◽  
Aortic Valve ◽  
Myocardial Ischemia ◽  
Left Main Coronary Artery ◽  
Left Ventricular ◽  
Papillary Fibroelastoma ◽  
Interdisciplinary Treatment ◽  
Bridge To Surgery ◽  
Left Main

Abstract Background A papillary fibroelastoma of the aortic valve has been reported as a rare cause of myocardial ischemia. An advanced combined interventional and surgical approach leading to sufficient therapy for the patient is presented in this case report. Case summary A 56-year old female patient presented in an emergency room of a hospital with an acute coronary syndrome. Over 1.5 years, recurrent stable angina had been known in the patient and significant coronary artery disease has already been ruled out in a previous coronary angiogram. The patient was immediately transferred to the catheter laboratory due to cardiogenic shock where a drug-eluting stent was implanted to, firstly, recanalize the left main coronary artery and, secondly, to protect the left main ostium from obstruction by an echocardiographic-proven mass. During subsequent deterioration of hemodynamics caused by decreasing left ventricular function and acute severe mitral insufficiency, firstly an intra-aortic balloon pump and secondly a VA-ECMO was established through the femoral vessels. The patient was transferred to our cardiac surgery unit and was successfully operated utilizing a valve-sparing technique by extracting the tumor mass from the left coronary cusp and extracting the stent carefully from the left main coronary artery. Histology revealed a papillary fibroelastoma (Figure 4). Conclusion A papillary fibroelastoma of the aortic valve with intermittent obstruction of the coronary arteries requires surgical therapy. Interventional recanalization and extracorporeal support might be useful strategies to ensure the patient’s safety as a bridge to surgery.

scholarly journals Case Report: Post transcatheter aortic valve replacement shock: Value of multimodal imaging

F1000Research ◽  
2016 ◽  
Vol 5 ◽  
pp. 2032 ◽  
Author(s):  
Sujatha P. Bhandary ◽  
Andrew J. Otey ◽  
Thomas J. Papadimos ◽  
Juan A. Crestanello ◽  
Barry S. George ◽  
...  
Keyword(s):  
Case Report ◽  
Coronary Artery ◽  
Aortic Valve ◽  
Aortic Valve Replacement ◽  
Valve Replacement ◽  
Transcatheter Aortic Valve Replacement ◽  
Multimodal Imaging ◽  
Left Main Coronary Artery ◽  
Left Main ◽  
Transcatheter Aortic Valve

Complications resulting from the delayed clinical presentation of a left main coronary artery obstruction can be catastrophic. This case report presents a 73-year-old woman with severe aortic stenosis who underwent transcatheter aortic valve replacement with a core valve who, approximately 20 minutes after heparin reversal with protamine, became hypotensive and was unresponsive to vasopressor and inotropic therapy. Transesophageal echocardiography demonstrated global hypokinesis, which was highly consistent with the occlusion of the left main coronary artery. Angiography confirmed this diagnosis and demonstrated that valve positioning had not changed compared to post-placement examination. Here we report the partial covering of the ostium of the left main coronary artery by a core valve skirt that converted into a total occlusion following the initiation of heparin reversal with protamine and the value of multimodal imaging in the management of this case.

scholarly journals Left main coronary artery bifurcation angioplasty and stenting after aortic valve replacement: a case report

2012 ◽  
Vol 64 (1) ◽  
pp. 80-83
Author(s):  
Sanjeeb Roy ◽  
Ajeet Bana ◽  
Rajeev Gupta ◽  
Rakesh Chittora ◽  
Sameer Sharma ◽  
...  
Keyword(s):  
Case Report ◽  
Coronary Artery ◽  
Aortic Valve ◽  
Aortic Valve Replacement ◽  
Valve Replacement ◽  
Left Main Coronary Artery ◽  
Left Main ◽  
Angioplasty And Stenting

Extent of utilization of the Frank-Starling mechanism in conscious dogs

1978 ◽  
Vol 234 (4) ◽  
pp. H338-H345 ◽  
Author(s):  
D. H. Boettcher ◽  
S. F. Vatner ◽  
G. R. Heyndrickx ◽  
E. Braunwald
Keyword(s):  
Coronary Artery ◽  
Myocardial Ischemia ◽  
Volume Expansion ◽  
Left Main Coronary Artery ◽  
Left Ventricular ◽  
Conscious Dogs ◽  
Left Main ◽  
Volume Loading ◽  
Conscious Animal ◽  
Controlling Mechanism

The extent to which an increase in preload increases left ventricular (LV) end-diastolic (ED) diameter (D) was studied in seven conscious dogs instrumented with ultrasonic D transducers and miniature LV pressure (P) gauges. Preload was elevated by three techniques: 1) volume loading with saline infusion, 2) induction of global myocardial ischemia by constricting the left main coronary artery, and 3) infusion of methoxamine. These three interventions increased LVEDP to over 30 mmHg from a control of 10 +/- 1 mmHg. With volume loading, LVEDD rose by only 1.55 +/- 0.39 mm from a control of 44.08 +/- 1.08 mm; with ischemia LVEDD rose by only .96 +/- .29 mm from a control of 42.55 +/- 2.18 mm, while with methoxamine LVEDD rose by only 1.34 +/- 0.38 mm from a control of 43.89 +/- 2.07 mm. In contrast, in the open-chest, anesthetized dog, LVEDD was greatly reduced and volume expansion resulted in a profound increase in LVEDD. Thus, the Frank-Starling mechanism is not an important controlling mechanism in the normal, reclining, conscious animal, since LVEDD appears to be near maximal at rest and does not increase substantially despite striking increases in LVEDP.

Coronary artery z score values in adolescent elite male soccer players

2020 ◽  
pp. 1-5
Author(s):  
Stephan Gerling ◽  
Tobias Pollinger ◽  
Markus Johann Dechant ◽  
Michael Melter ◽  
Werner Krutsch ◽  
...  
Keyword(s):  
Coronary Artery ◽  
Coronary Arteries ◽  
High Intensity ◽  
Left Main Coronary Artery ◽  
Left Ventricular ◽  
Soccer Players ◽  
Z Score ◽  
Left Main ◽  
Luminal Diameter ◽  
The Mean

Abstract Background: With the increased training loads at very early ages in European elite youth soccer, there is an interest to analyse coronary artery remodelling due to high-intensity exercise. Design and methods: Prospective echocardiographic study in 259 adolescent elite male soccer players and 48 matched controls. Results: The mean age was 12.7 ± 0.63 years in soccer players and 12.6 ± 0.7 years in controls (p > 0.05). Soccer players had significant greater indexed left ventricular mass (93 ± 13 g/m2 versus 79 ± 12 g/m2, p = 0.001). Both coronary arteries origin could be identified in every participant. In soccer players, the mean diameter of the left main coronary artery was 3.67 mm (SD ± 0.59) and 2.61 mm (SD ± 0.48) for right main coronary artery. Controls showed smaller mean luminal diameter (left main coronary artery, p = 0.01; right main coronary artery, p = 0.025). In soccer players, a total of 91% (n = 196) and in controls a total of 94% (n = 45) showed left main coronary artery z scores within the normal range: −2.0 to 2.0. In right main coronary artery, a pattern of z score values distribution was comparable (soccer players 94%, n = 202 vs. controls 84%, n = 40). A subgroup of soccer players had supernormal z score values (>2.0 to 2.5) for left main coronary artery (9%, n = 19, p = 0.01) and right main coronary artery (6%, n = 10, p = 0.025), respectively. Conclusion: Elite soccer training in early adolescence may be a stimulus strong enough to develop increased coronary arteries diameters. In soccer players, a coronary artery z score >2.0–2.5 might reflect a physiologic response induced by multiannual high-intensity training.

scholarly journals Left anterior descending coronary artery dissection during ventricular tachycardia ablation – case report

2018 ◽  
Vol 56 (1) ◽  
pp. 63-66
Author(s):  
Kresimir Kordic ◽  
Sime Manola ◽  
Ivan Zeljkovic ◽  
Ivica Benko ◽  
Nikola Pavlovic
Keyword(s):  
Ventricular Tachycardia ◽  
Coronary Artery ◽  
Left Main Coronary Artery ◽  
Left Ventricular ◽  
Artery Dissection ◽  
Complication Rates ◽  
Left Main ◽  
Coronary Artery Dissection ◽  
Ventricular Tachycardia Ablation ◽  
First Case

Abstract Fascicular left ventricular tachycardia (VT) is the second most frequent idiopathic left VT in the setting of a structurally normal heart. Catheter ablation is curative in most patients with low complication rates. We report a case of ostial left anterior descending coronary artery (LAD) occlusion during fascicular ventricular tachycardia ablation. Dissection was the most likely cause of LAD obstruction. To the authors’ best knowledge, this is the first case reporting selective LAD dissection during electrophysiology study with no left main coronary artery (LMCA) affection.

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