Results 161 to 170 of about 445,623 (380)

Genetic aspect of pulmonary arterial hypertension [PDF]

open access: bronze, 2001
Jane H. Morse   +2 more
openalex   +1 more source

Diagnostic Accuracy of Angiography‐Derived Murray Law‐Based Quantitative Flow Ratio (μQFR) Versus Pressure‐Derived Fractional Flow Reserve (FFR) in Moderate to Severe Calcified Coronary Lesions—The DIAMOND Study

open access: yesCatheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Murray law‐based Quantitative Flow Ratio (μQFR) is an innovative AI‐driven method for evaluating coronary lesions using contrast flow velocity estimates. Unlike traditional approaches, μQFR does not require pressure wires or hyperemia induction.
Wesley Bennar   +9 more
wiley   +1 more source

Hot topics in the mechanisms of pulmonary arterial hypertension disease: cancer-like pathobiology, the role of the adventitia, systemic involvement, and right ventricular failure

open access: yesPulmonary Circulation, 2019
In order to intervene appropriately and develop disease-modifying therapeutics for pulmonary arterial hypertension, it is crucial to understand the mechanisms of disease pathogenesis and progression.
Edda Spiekerkoetter   +10 more
doaj   +1 more source

Automated segmentation of the pulmonary arteries in low-dose CT by vessel tracking [PDF]

open access: yesarXiv, 2011
We present a fully automated method for top-down segmentation of the pulmonary arterial tree in low-dose thoracic CT images. The main basal pulmonary arteries are identified near the lung hilum by searching for candidate vessels adjacent to known airways, identified by our previously reported airway segmentation method.
arxiv  

A Rare Case of Nitroglycerin Resistant Coronary Arterial Vasospasm During Coronary Artery Bypass Surgery

open access: yesCatheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Coronary artery vasospasm following coronary artery bypass grafting (CABG) is a rare but potentially life‐threatening complication that can lead to myocardial ischemia, arrhythmias, and cardiogenic shock. Nitroglycerin‐resistant vasospasm, particularly involving the left main coronary artery (LMCA), poses significant diagnostic and ...
Dina Soliman   +3 more
wiley   +1 more source

Increased Thrombogenicity is Associated With Coronary Microvascular Dysfunction in Patients With STEMI—A Proof‐of‐Concept Study

open access: yesCatheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Up to 50% of patients with ST‐segment elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention (pPCI) develop coronary microvascular dysfunction (CMD). Aims This study aims to assess whether a prothrombotic state of coronary blood, defined by thromboelastography (TEG), is associated with post ...
Roberto Scarsini   +15 more
wiley   +1 more source

An 18-year-old male with dyspnea and pulmonary arterial hypertension [PDF]

open access: diamond, 2001
Maria Aparecida Barne Teixeira   +2 more
openalex   +1 more source

Treatment With Phosphodiesterase 5 Inhibitors and Long‐Term Outcomes in Patients Undergoing Coronary Angiography and Cardiac Catheterization

open access: yesCatheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background The effects of phosphodiesterase 5 (PDE5) inhibitors on the incidence of long‐term outcomes in patients with cardiovascular disease are not well understood. Objective: We studied the association between PDE5 inhibitor therapy and the incidence of adverse cardiovascular major adverse cardiovascular events (MACE) in patients ...
Sumon Roy   +5 more
wiley   +1 more source

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