AIMC Topic: Hemodynamics

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Stroke Volume Recruitability during the Third Trimester of Pregnancy.

American journal of perinatology Dec 26, 2017
OBJECTIVE: It is unknown whether the heart operates in the ascending or flat portion of the Starling curve during normal pregnancy. Pregnant women do not respond to the passive leg-raising maneuver secondary to mechanical obstruction of the inferior ...
Stroke Volume Hemodynamics Monitoring, Physiologic Posture Blood Pressure Prospective Studies Pregnancy Female Young Adult Adult Humans Heart Rate Pregnancy Trimester, Third Patient Positioning Leg Vascular Resistance
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Incidence and Predictors of Postoperative Need for High-Dose Inotropic Support in Patients Undergoing Cardiac Surgery for Infective Endocarditis.

Journal of cardiothoracic and vascular anesthesia Dec 11, 2017
OBJECTIVE: Patients with infective endocarditis undergoing cardiac surgery are a high-risk population. Few data on incidence and predictors of need for high-dose inotropic support in this setting are currently available.
Incidence Survival Rate Humans Time Factors Male Retrospective Studies Germany Follow-Up Studies Middle Aged Intensive Care Units Endocarditis Dose-Response Relationship, Drug Postoperative Complications Female Cardiac Output, Low Hemodynamics Postoperative Care Cardiotonic Agents
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Prediction of persistent hemodynamic depression after carotid angioplasty and stenting using artificial neural network model.

Clinical neurology and neurosurgery Dec 5, 2017
OBJECTIVES: To assess and compare predictive factors for persistent hemodynamic depression (PHD) after carotid artery angioplasty and stenting (CAS) using artificial neural network (ANN) and multiple logistic regression (MLR) or support vector machin...
Neural Networks, Computer Machine Learning Prospective Studies Retrospective Studies Female Humans Predictive Value of Tests Stents Angioplasty Hemodynamic Monitoring Carotid Artery Diseases Aged Male Middle Aged Hemodynamics Follow-Up Studies
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Prognostic Value of Combined Clinical and Myocardial Perfusion Imaging Data Using Machine Learning.

JACC. Cardiovascular imaging Oct 18, 2017
OBJECTIVES: This study evaluated the added predictive value of combining clinical information and myocardial perfusion single-photon emission computed tomography (SPECT) imaging (MPI) data using machine learning (ML) to predict major adverse cardiac ...
Exercise Test Tomography, Emission-Computed, Single-Photon Coronary Circulation Aged Myocardial Perfusion Imaging Aged, 80 and over Machine Learning Male Prognosis Risk Assessment Cardiovascular Diseases Humans Female Hemodynamics Middle Aged Reproducibility of Results Time Factors Risk Factors Health Status Predictive Value of Tests
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Changes in cardiac function and hemodynamics during robot-assisted laparoscopic prostatectomy with steep head-down tilt: a prospective observational study.

BMC research notes Jul 28, 2017
OBJECTIVE: Robot-assisted laparoscopic prostatectomy requires the patient to be placed in a steep head-down tilt. The aim of our study was to investigate changes in cardiac index and left ventricular end-diastolic volume in a steep had-down tilt. Thi...
Male Ventricular Function, Left Hemodynamics Robotics Blood Pressure Humans Prospective Studies Aged Laparoscopy Head-Down Tilt Prostatectomy Echocardiography, Transesophageal
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Machine Learning Approach for Predicting Wall Shear Distribution for Abdominal Aortic Aneurysm and Carotid Bifurcation Models.

IEEE journal of biomedical and health informatics Dec 14, 2016
Computer simulations based on the finite element method represent powerful tools for modeling blood flow through arteries. However, due to its computational complexity, this approach may be inappropriate when results are needed quickly. In order to r...
Humans Machine Learning Hemodynamics Models, Statistical Aortic Aneurysm, Abdominal Stress, Mechanical Carotid Arteries Finite Element Analysis Models, Cardiovascular
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Regional muscle tissue saturation is an indicator of global inadequate circulation during cardiopulmonary bypass: a randomized porcine study using muscle, intestinal and brain tissue metabolomics.

Perfusion Oct 17, 2016
BACKGROUND: Muscle tissue saturation (StO) measured with near-infrared spectroscopy has generally been considered a measurement of the tissue microcirculatory condition. However, we hypothesized that StO could be more regarded as a fast and reliable ...
Cerebrovascular Circulation Oxygen Consumption Brain Cardiopulmonary Bypass Hemodynamics Female Regional Blood Flow Metabolomics Animals Random Allocation Muscle, Skeletal Swine Microcirculation Intestinal Mucosa Spectroscopy, Near-Infrared Oxygen
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A machine learning approach to identify functional biomarkers in human prefrontal cortex for individuals with traumatic brain injury using functional near-infrared spectroscopy.

Brain and behavior Aug 24, 2016
BACKGROUND: We have explored the potential prefrontal hemodynamic biomarkers to characterize subjects with Traumatic Brain Injury (TBI) by employing the multivariate machine learning approach and introducing a novel task-related hemodynamic response ...
Adult Male Case-Control Studies Spectroscopy, Near-Infrared Prefrontal Cortex Humans Machine Learning Biomarkers Female Hemodynamics Brain Injuries, Traumatic
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First-in-human robotic percutaneous coronary intervention for unprotected left main stenosis.

Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions May 18, 2016
The safety and feasibility of robotically-assisted percutaneous coronary intervention (PCI) for simple coronary lesions has been demonstrated. The CorPath robotic system (Corpath 200, Corindus, Waltham, MA) consists of a robotic arm mounted on the ca...
Intra-Aortic Balloon Pumping Feasibility Studies Stents Heart-Assist Devices California Radiography, Interventional Therapy, Computer-Assisted Product Surveillance, Postmarketing Coronary Stenosis Surgical Equipment Angioplasty, Balloon, Coronary Humans Robotics Coronary Angiography Prospective Studies Equipment Design Female Registries Aged Fluoroscopy Aged, 80 and over Male Adult Ventricular Function, Left Hemodynamics Treatment Outcome
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Immediate hemodynamic changes after revascularization of complete infrarenal aortic occlusion: A classic issue revisited.

Medical hypotheses Dec 18, 2015
Chronic total occlusion of the infrarenal aorta (CTOA) is a rare disease, characterized by severe impairment of limb perfusion. It is advocated that revascularization may improve survival rates, presumably due to improved cardiovascular performance; ...
Stents Hemodynamics Models, Cardiovascular Humans Pilot Projects Aortic Diseases Female Kidney Arterial Occlusive Diseases Aged Radiography Male Pulse Wave Analysis Middle Aged
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