Results 41 to 50 of about 2,948 (171)

On the History of Hepatic Vein Catheterization

open access: yesLiver International, Volume 46, Issue 9, September 2026.
ABSTRACT Hepatic vein catheterization (HVC) in man was first performed 80 years ago in the wake of right‐sided heart catheterization. Several new methods, recognitions and concepts followed, especially the indirect Fick‐method for determination of splanchnic blood flow. Five years passed before pressure measurements were performed and routine HVCs were
Jens Henrik Henriksen   +2 more
wiley   +1 more source

Assessment of Pulmonary Vascular Impedance in Patients With Severe Pulmonary Arterial Hypertension

open access: yesComprehensive Physiology, Volume 16, Issue 4, August 2026.
Pulmonary vascular impedance (PVZ) was calculated from clinical PA pressure and RVOT flow velocity profiles. Participants with increased pulmonary vascular resistance have increased PVZ, afterload, and diastolic stiffness. The characteristic impedance (ZC) to mean PA pressure relationship models the effect of proximal vasculature remodeling on ZC for a
Keeley Shea Ravellette   +7 more
wiley   +1 more source

Prediction of the Time of Cardiac Function Normalization after Surgery under Extracorporeal Circulation

open access: yesОбщая реаниматология, 2007
Objective: to study the prognostic value and correlations of hemodynamic parameters during operations under extracorporeal circulation (EC), as well as the possibilities of mathematically predicting the time that takes to recover the normal function of ...
L. A. Krichevsky, I. A. Kozlov
doaj   +1 more source

Larger pulmonary artery to ascending aorta ratios are associated with decreased survival of patients undergoing pulmonary endarterectomyCentral MessagePerspective

open access: yesJTCVS Open, 2022
Objectives: The ratio of pulmonary artery (PA) and ascending aorta (AA) diameters has recently been shown to be a useful indicator for disease severity and predictor of outcome in patients with pulmonary hypertension and heart failure.
Panja M. Boehm, MD   +12 more
doaj   +1 more source

Backrest Position and Outcome in Comatose Survivors of Out‐of‐Hospital Cardiac Arrest: Protocol for a Multi‐Center Randomized Comparison Within the Danish Out‐of‐Hospital Cardiac Arrest (DANOHCA) Trial

open access: yesActa Anaesthesiologica Scandinavica, Volume 70, Issue 7, August 2026.
ABSTRACT Background Intensive care following resuscitation from out‐of‐hospital cardiac arrest (OHCA) is based on a set of interventions, all of which are intended to reduce anoxic brain injury and improve outcomes, including sedation, mechanical ventilation, circulatory optimization, and temperature control protocols.
Jesper Kjaergaard   +13 more
wiley   +1 more source

Impact of Higher Versus Lower Blood Pressure Targets on Pulmonary Vascular Hemodynamics During Intensive Care After Out‐of‐Hospital Cardiac Arrest

open access: yesActa Anaesthesiologica Scandinavica, Volume 70, Issue 7, August 2026.
ABSTRACT Background Hemodynamic management after out‐of‐hospital cardiac arrest (OHCA) is critical, yet the impact of vasopressor‐driven mean arterial pressure (MAP) targets on pulmonary circulation and right ventricular (RV) function remains unclear.
Shira K. Hendin   +10 more
wiley   +1 more source

Hemodynamic changes in lipid emulsion therapy (SMOFlipid) for bupivacaine toxicity in swines Alterações hemodinâmicas na terapia por emulsão lipídica (SMOFlipid) na intoxicação por bupivacaína em suínos

open access: yesActa Cirúrgica Brasileira, 2012
PURPOSE: To evaluate the hemodynamic changes following SMOFlipid emulsion therapy with after bupivacaine intoxication in swines. METHODS: Large White pigs were anesthetized with thiopental, tracheal intubation was performed and mechanical ventilation was
Marcos De Simone Melo   +4 more
doaj   +1 more source

Invasive Assessment of Right Ventricular Dysfunction Predicts Periprocedural Outcomes in Patients Undergoing Unplanned Ventricular Tachycardia Ablation

open access: yesJournal of Cardiovascular Electrophysiology, Volume 37, Issue 8, Page 1699-1708, August 2026.
Displays bar graphs showing outcome rates stratified by clinical and hemodynamic variables. Asterisks (*) denote statistically significant differences (p ≤ 0.05). “NS” indicates non‐significant comparisons. Percentages are shown above each bar. The top panel corresponds to acute kidney injury (blue bars), and the bottom panel corresponds to acute ...
Tess Calcagno   +23 more
wiley   +1 more source

Minimally Invasive Porcine Model for Chronic Thromboembolic Pulmonary Hypertension

open access: yesPulmonary Circulation, Volume 16, Issue 3, July 2026.
ABSTRACT To elucidate the complex pathophysiology of chronic thromboembolic pulmonary hypertension (CTEPH), a disease associated with bilateral fibrotic obstructions of the pulmonary arteries (PA) and microvascular changes, research relies on animal models, which often depend on invasive techniques, including open surgery.
Bianca Battilana   +5 more
wiley   +1 more source

The Relationship Between Vortical Flow and Pressure Gradient Reversal in Pulmonary Hypertension—A 4D Analysis of Cardiovascular Magnetic Resonance Flow Imaging

open access: yesPulmonary Circulation, Volume 16, Issue 3, July 2026.
ABSTRACT Diagnosing pulmonary hypertension (PH) requires invasive right heart catheterization (RHC). However, mean pulmonary artery pressure (mPAP) can be non‐invasively estimated using 4D analysis of cardiovascular magnetic resonance (CMR) flow imaging to assess the duration of pathological vortex flow (Tvortex) in the main pulmonary artery (MPA ...
Raheeq Karim   +7 more
wiley   +1 more source

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