Results 51 to 60 of about 17,442 (284)

Fractional flow reserve after previous myocardial infarction [PDF]

European Heart Journal, 2007
Marques and colleagues have conducted an interesting study on microvascular resistance of viable tissue within an infarcted area. 1 This study is important, not only from a conceptual point of view, but also because it has several relevant implications for the applicability of MIBI spect and fractional flow reserve (FFR) measurement in patients with ...
openaire   +3 more sources

Retracted: Microvascular resistance reserve in the presence of functionally significant epicardial stenosis and changes after revascularization

Physiological Reports, 2023
In the presence of functionally significant epicardial lesions, microvascular resistance reserve (MRR) calculation needs incorporation of collateral flow.
Yoshihiro Hanyu, Masahiro Hoshino, Eisuke Usui, Tomoyo Sugiyama, Yoshihisa Kanaji, Masahiro Hada, Tatsuhiro Nagamine, Kai Nogami, Hiroki Ueno, Kodai Sayama, Kazuki Matsuda, Tatsuya Sakamoto, Taishi Yonetsu, Tetsuo Sasano, Tsunekazu Kakuta   +14 more
doaj   +1 more source

Clinical and Vessel Characteristics Associated With Hard Outcomes After PCI and Their Combined Prognostic Implications

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2023
Background Cardiac death or myocardial infarction still occurs in patients undergoing contemporary percutaneous coronary intervention (PCI). We aimed to identify adverse clinical and vessel characteristics related to hard outcomes after PCI and to ...
Seokhun Yang, Doyeon Hwang, Jinlong Zhang, Jiesuck Park, Jun Pil Yun, Joo Myung Lee, Chang‐Wook Nam, Eun‐Seok Shin, Joon‐Hyung Doh, Shao‐Liang Chen, Tsunekazu Kakuta, Gabor G. Toth, Zsolt Piroth, Nils P. Johnson, Abdul Hakeem, Barry F Uretsky, Yohei Hokama, Nobuhiro Tanaka, Hong‐Seok Lim, Tsuyoshi Ito, Akiko Matsuo, Lorenzo Azzalini, Massoud A. Leesar, Tara Neleman, Nicolas M van Mieghem, Roberto Diletti, Joost Daemen, Damien Collison, Carlos Collet, Bernard De Bruyne, Bon‐Kwon Koo   +30 more
doaj   +1 more source

Microvascular dysfunction in the immediate aftermath of chronic total coronary occlusion recanalization [PDF]

, 2016
Objectives The aim of this study was to compare microvascular resistance under both baseline and hyperemic conditions immediately after percutaneous coronary intervention (PCI) of a chronic total occlusion (CTO) with an unobstructed reference vessel in ...
Alamgir, Farquad, Cunnington, Michael S., Hoye, Angela, Ladwiniec, Andrew, Rossington, Jennifer, Thackray, Simon   +5 more
core   +1 more source

Myocardial perfusion imaging by single-photon emission tomography (MPI SPECT) versus Instantaneous wave-free ratio (IFR) for assessment of functional significance of intermediate coronary artery lesions

The Egyptian Heart Journal, 2019
Background The aim of our work was to compare the myocardial perfusion imaging by single-photon emission tomography (MPI-SPECT) as a non-invasive, relatively non-expensive test versus the instantaneous wave-free ratio (IFR) for the evaluation of ...
Osama Ahmed Amin, Yasser Ahmed Abdel Hady, Mohammad Ahmad Nour El-Din Esmail   +2 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

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

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

Stable coronary syndromes: pathophysiology, diagnostic advances and therapeutic need [PDF]

, 2018
The diagnostic management of patients with angina pectoris typically centres on the detection of obstructive epicardial CAD, which aligns with evidence-based treatment options that include medical therapy and myocardial revascularisation.
Berry, Colin, Corcoran, David, Ford, Thomas J.   +2 more
core   +1 more source