Results 31 to 40 of about 27,408 (289)

Deep reinforcement learning for guidewire navigation in coronary artery phantom [PDF]

open access: yes, 2021
In percutaneous intervention for treatment of coronary plaques, guidewire navigation is a primary procedure for stent delivery. Steering a flexible guidewire within coronary arteries requires considerable training, and the non-linearity between the control operation and the movement of the guidewire makes precise manipulation difficult.
arxiv   +1 more source

Treatment of atherosclerotic renovascular hypertension: review of observational studies and a meta-analysis of randomized clinical trials. [PDF]

open access: yes, 2015
open9Atherosclerotic renal artery stenosis can cause ischaemic nephropathy and arterial hypertension. We herein review the observational and randomized clinical trials (RCTs) comparing medical and endovascular treatment for control of hypertension and ...
Caielli, P   +8 more
core   +1 more source

Towards reliable calcification detection: calibration of uncertainty in coronary optical coherence tomography images [PDF]

open access: yes, 2022
Optical coherence tomography (OCT) has become increasingly essential in assisting the treatment of coronary artery disease (CAD). Image-guided solutions such as Percutaneous Coronary Intervention (PCI) are extensively used during the treatment of CAD. However, unidentified calcified regions within a narrowed artery could impair the outcome of the PCI ...
arxiv   +1 more source

A direct comparison of decision rules for early discharge of suspected acute coronary syndromes in the era of high sensitivity troponin [PDF]

open access: yes, 2018
Background: We tested the hypothesis that a single high sensitivity troponin at limits of detection (LOD HSTnT) (<5 ng/l) combined with a presentation non-ischaemic electrocardiogram is superior to low-risk Global Registry of Acute Coronary Events ...
Albouaini, Khaled   +15 more
core   +1 more source

SARS-CoV-2 triggered seizure complicated by fatal subdural hematoma under edoxaban and clopidogrel

open access: yesJournal of Family Medicine and Primary Care, 2022
SARS-CoV-2 associated coagulopathy may manifest as hypocoagulability with a propensity for bleeding. Here we report a COVID-19 patient with fatal subdural hematoma (SDH) shortly after thrombendarteriectomy (TEA), and anticoagulation together with anti ...
Josef Finsterer, Maria Korn
doaj   +1 more source

Short-, medium-, and long-term follow-up after percutaneous transluminal coronary angioplasty for stable and unstable angina pectoris [PDF]

open access: yes, 1989
The first 840 consecutive patients who underwent percutaneous transluminal coronary angioplasty (PTCA) performed in the same institution were retrospectively assessed at an average follow-up period of 25 months after the initial procedure.
Beatt, K.J. (Kevin)   +6 more
core   +1 more source

A Synopsis of Stent Graft Technology Development [PDF]

open access: yesarXiv, 2023
Coronary artery disease (CAD) is a leading cause of death worldwide. Treatments have evolved, with stenting becoming the primary approach over bypass surgery. This article reviews the evolution of coronary stent technology, starting from the first angioplasty in 1977. Pioneers like Forssmann, Dotter, and Gruentzig established the foundation.
arxiv  

Intervenção coronariana percutânea em artéria coronariana única em paciente com angina instável de alto risco Percutaneous coronary intervention in single coronary artery in a patient with hig-risk unstable angina

open access: yesArquivos Brasileiros de Cardiologia, 2007
No presente caso, relatamos a realização de angioplastia coronariana com implante de stent na artéria coronariana direita de paciente com quadro de angina instável de alto risco, portadora de artéria coronariana única com origem no seio coronariano ...
Hugo Alexandre Ross Yokoyama   +5 more
doaj   +1 more source

Giant Right Coronary Artery Aneurysm Following Percutaneous Transluminal Coronary Angioplasty

open access: yesJournal of the Indian Academy of Echocardiography & Cardiovascular Imaging, 2021
Coronary artery aneurysm following percutaneous coronary angioplasty (PTCA) is rare in interventional cardiology. Several factors may contribute to the development of such complication following PTCA that include stent size, improper apposition, nature ...
Sudeb Mukherjee   +3 more
doaj   +1 more source

Robust Landmark-based Stent Tracking in X-ray Fluoroscopy [PDF]

open access: yesarXiv, 2022
In clinical procedures of angioplasty (i.e., open clogged coronary arteries), devices such as balloons and stents need to be placed and expanded in arteries under the guidance of X-ray fluoroscopy. Due to the limitation of X-ray dose, the resulting images are often noisy.
arxiv  

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