Results 31 to 40 of about 8,717 (246)

Extensive unroofing of myocardial bridge: A case report and literature review

SAGE Open Medical Case Reports, 2019
Background: Myocardial bridge is defined as a segment of a coronary artery that takes an intramyocardial course. The presence of myocardial bridge has been observed in as many as 40%–80% of cases on autopsy, angiographically from 0.5% to 16.0%, and often
Salvior Mok, David Majdalany, Gosta B Pettersson   +2 more
doaj   +1 more source

A case of myocardial muscular bridging causing severe hypotension during exercise-electrocardiography test

Türk Kardiyoloji Derneği Arşivi, 2016
Outlining the severity of the myocardial bridge (MB) is a critical step for selecting the appropriate option among medical, surgical, or angioplasty-based treatments.
Gamze Babur Güler, Hacı Murat Güneş, Ekrem Güler, Tamer Atasever, Ali Metin Esen   +4 more
doaj   +1 more source

Clinical Relevance of Ischemia with Nonobstructive Coronary Arteries According to Coronary Microvascular Dysfunction

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2022
Background In the absence of obstructive coronary stenoses, abnormality of noninvasive stress tests (NIT) in patients with chronic coronary syndromes may indicate myocardial ischemia of nonobstructive coronary arteries (INOCA). The differential prognosis
Seung Hun Lee, Doosup Shin, Joo Myung Lee, Tim P. van de Hoef, David Hong, Ki Hong Choi, Doyeon Hwang, Coen K. M. Boerhout, Guus A. de Waard, Ji‐Hyun Jung, Hernan Mejia‐Renteria, Masahiro Hoshino, Mauro Echavarria‐Pinto, Martijn Meuwissen, Hitoshi Matsuo, Maribel Madera‐Cambero, Ashkan Eftekhari, Mohamed A. Effat, Tadashi Murai, Koen Marques, Joon‐Hyung Doh, Evald H. Christiansen, Rupak Banerjee, Hyun Kuk Kim, Chang‐Wook Nam, Giampaolo Niccoli, Masafumi Nakayama, Nobuhiro Tanaka, Eun‐Seok Shin, Steven A. J. Chamuleau, Niels van Royen, Paul Knaapen, Bon Kwon Koo, Tsunekazu Kakuta, Javier Escaned, Jan J. Piek   +35 more
doaj   +1 more source

Impact of Right Atrial Pressure on Fractional Flow Reserve Measurements

JACC: Cardiovascular Interventions, 2016
This study sought to assess the impact of a wide range of mean right atrial pressure (Pra) on fractional flow reserve (FFR) measurements.FFR invasively assesses the ischemic potential of coronary stenoses. FFR is calculated as the ratio of mean distal coronary pressure (Pd) to mean aortic pressure (Pa) during maximal hyperemia. The Pra is considered to
Toth, Gabor G, De Bruyne, Bernard, Rusinaru, Dan, DI GIOIA, GIUSEPPE, Bartunek, Jozef, PELLICANO, MARIANO, Vanderheyden, Marc, Adjedj, Julien, Wijns, William, Pijls, Nico H. J, BARBATO, EMANUELE   +10 more
openaire   +5 more sources

Fractional flow reserve of non-culprit vessel post-myocardial infarction: is it reliable? [PDF]

BMC Cardiovascular Disorders, 2015
Multi-vessel disease is frequent in patients presenting with myocardial infarction and have an important prognostic impact. The decision to proceed to revascularization in non-culprit vessels can be postponed until ischemia is proven in non-invasive stress tests.
Luís Leite, Joana Moura Ferreira, João Silva Marques, Elisabete Jorge, Vítor Matos, Jorge Guardado, João Calisto, Mariano Pego   +7 more
openaire   +3 more sources

Branch flow distribution approach and its application in the calculation of fractional flow reserve in stenotic coronary artery

Mathematical Biosciences and Engineering, 2021
Objective: To calculate fractional flow reserve (FFR) based on computed tomography angiography (i.e., FFRCT) by considering the branch flow distribution in the coronary arteries.
Honghui Zhang, Jun Xia, Yinlong Yang, Qingqing Yang, Hongfang Song , Jinjie Xie , Yue Ma, Yang Hou, Aike Qiao   +8 more
doaj   +1 more source

Fractional Flow Reserve in Acute Myocardial Infarction: A Guide for Non-Culprit Lesions? [PDF]

Cardiology and Therapy, 2015
In patients presenting with ST-segment elevation myocardial infarction (STEMI) and multi-vessel disease (MVD), the optimal therapy for non-culprit lesions is still a matter of debate. While guidelines discourage a concomitant treatment of infarct- and non-infarct-related arteries, recent studies document advantages of a complete (preventive ...
Mohamed Abdel-Wahab, Dmitriy S. Sulimov, Gert Richardt   +2 more
openaire   +3 more sources

Accuracy of intravascular ultrasound-derived virtual fractional flow reserve (FFR) and FFR derived from computed tomography for functional assessment of coronary artery disease

BioMedical Engineering OnLine, 2023
Background Coronary computed tomography-derived fractional flow reserve (CT-FFR) and intravascular ultrasound-derived fractional flow reserve (IVUS-FFR) are two functional assessment methods for coronary stenoses.
Wenhao Huang, Jingyuan Zhang, Lin Yang, Yumeng Hu, Xiaochang Leng, Yajun Liu, Hongfeng Jin, Yiming Tang, Jiangting Wang, Xiaowei Liu, Yitao Guo, Chen Ye, Yue Feng, Jianping Xiang, Lijiang Tang, Changqing Du   +15 more
doaj   +1 more source

Prognostic Implications of Resistive Reserve Ratio in Patients With Coronary Artery Disease

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2020
Background Resistive reserve ratio is a thermodilution‐based index which integrates both coronary flow and pressure. Resistive reserve ratio represents the vasodilatory capacity of interrogated vessels including both epicardial coronary artery and ...
Seung Hun Lee, Joo Myung Lee, Jonghanne Park, Ki Hong Choi, Doyeon Hwang, Joon‐Hyung Doh, Chang‐Wook Nam, Eun‐Seok Shin, Masahiro Hoshino, Tadashi Murai, Taishi Yonetsu, Hernán Mejía‐Rentería, Tsunekazu Kakuta, Javier Escaned   +13 more
doaj   +1 more source

The Impact of Myocardial Bridging on Fractional Flow Reserve

, 2022
Arterial stenosis is a problem of immediate significance, as cardiovascular disease is the number one leading cause of death worldwide. Fractional flow reserve (FFR) was proposed to evaluate the functional severity of coronary plaque-induced stenosis more accurately. FFR relies on invasive pressure measurements, while computational fluid dynamics (CFD)
openaire   +2 more sources