A 75-year-old man, who had a history of coronary dissection after percutaneous coronary intervention in left anterior descending coronary artery, underwent coronary magnetic resonance. Magnetic resonance demonstrated coronary dissection in the distal portion of the left anterior descending artery. Both the true lumen with thick vessel wall and the false lumen with thin vessel wall were demonstrated in the cross-sectional images using T1-weighed black blood technique and T2-weighed black blood technique. Soft plaque was located at the twelve o'clock in the true lumen. Invasive coronary angiogram showed long coronary dissection from middle to distal portion of left anterior descending coronary artery. Magnetic resonance was thought to be useful to detect and follow up the coronary dissection noninvasively.
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http://dx.doi.org/10.1016/j.ijcard.2007.01.026 | DOI Listing |
Anat Histol Embryol
January 2025
Department of Surgery and Radiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
This study investigates the gross morphological and morphometric characteristics of thoracic and lumbar intervertebral discs (IVDs) in guinea pigs, utilising micro-CT imaging and anatomical dissection. The findings reveal 13 thoracic and six lumbar IVDs were identified, with thoracic discs transitioning from rounded forms at T1-T3 to triangular and heart-shaped structures at T4-T13, while lumbar IVDs exhibited a consistently flattened heart shape. Morphometric analysis revealed statistically significant differences, with lumbar IVDs being larger in lateral and dorsoventral width, disc area, annulus fibrosus (AF) area and nucleus pulposus (NP) area, and ventral height compared to thoracic discs.
View Article and Find Full Text PDFAnn Thorac Surg Short Rep
September 2023
Department of Thoracic and Cardiovascular Surgery, Cleveland Clinic Foundation, Cleveland, Ohio.
Complete circumferential aortic dissection with bidirectional intimo-intimal intussusception is a rare occurrence in Stanford type A dissections. The antegrade dissection flap can obstruct the left ventricular outflow tract and coronary sinuses, whereas the retrograde flap can obstruct the aortic arch and branch vessels. Sequelae include aortic regurgitation, myocardial ischemia, and neurologic complications.
View Article and Find Full Text PDFAnn Thorac Surg Short Rep
September 2023
Department of Thoracic and Cardiovascular Surgery, Heart, Vascular & Thoracic Institute, Cleveland Clinic Florida, Weston, Florida.
Late presentation of an anomalous left coronary artery from the pulmonary artery (ALCAPA) syndrome is uncommon because of the low survival rates past infancy. Different operative procedures have been described, often combined with coronary bypass grafting. However, none of these approaches address the difficulty in dissecting out the aortic root and infundibulum because of collateral circulation, often dense in the elderly.
View Article and Find Full Text PDFAnn Thorac Surg Short Rep
December 2023
Department of Cardiovascular Surgery, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan.
Williams syndrome (WS) is a contiguous gene syndrome involving the connective tissue, central nervous system, and cardiovascular disorders, such as supravalvular aortic stenosis (SVAS), pulmonary artery stenosis, and coronary artery anomaly, that carry a risk of sudden death. Although aortic dissection with SVAS in WS is extremely rare, it could be 1 of the triggers of sudden cardiac death. In this case, a patient with WS underwent ascending aorta replacement for aortic dissection that was potentially influenced by infective endocarditis and SVAS repaired by modified Brom aortoplasty.
View Article and Find Full Text PDFAnn Thorac Surg Short Rep
December 2024
Division of Cardiac Surgery, Inova Heart and Vascular Institute, Inova Health Systems, Falls Church, Virginia.
Background: DeBakey type I aortic dissections (AD) are most frequently treated with hemiarch repair. A subset of patients demonstrates persistent distal end-organ ischemia secondary to persistent true lumen (TL) compression. We describe the use of bare metal stent grafting across the residual arch dissection with the Zenith Dissection Endovascular Stent (ZDES, Cook Medical) in 7 patients with type I AD that was repaired in a hemiarch configuration with a compromised distal TL and organ malperfusion.
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