The Influence of Methods for Cardiac Output Determination on the Diagnosis of Precapillary Pulmonary Hypertension: A Mathematical Model

Article Medicine, General & Internal

Non-Invasive Cardiac Output Determination Using Magnetic Resonance Imaging and Thermodilution in Pulmonary Hypertension

Lindsey A. Crowe et al.

Summary: The use of MRI to measure cardiac output is essential for pulmonary hypertension patients. The study found that SVMRI did not have interchangeability with SVTD, but showed better agreement when compared against each other.

JOURNAL OF CLINICAL MEDICINE (2022)

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Article Cardiac & Cardiovascular Systems

2022 ESC/ERS Guidelines for the diagnosis and treatment of pulmonary hypertension Developed by the task force for the diagnosis and treatment of pulmonary hypertension of the European Society of Cardiology (ESC) and the European Respiratory Society (ERS). Endorsed by the International Society for Heart and Lung Transplantation (ISHLT) and the European Reference Network on rare respiratory diseases (ERN-LUNG)

Marc Humbert et al.

EUROPEAN HEART JOURNAL (2022)

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Article Medicine, General & Internal

Correlation between Pulmonary Artery Pressure and Vortex Duration Determined by 4D Flow MRI in Main Pulmonary Artery in Patients with Suspicion of Chronic Thromboembolic Pulmonary Hypertension (CTEPH)

Jean-Francois Deux et al.

Summary: Chronic thromboembolic pulmonary hypertension (CTEPH) is a cause of pulmonary hypertension (PH) and requires invasive measurement of the mean pulmonary artery pressure (mPAP) for diagnosis. 4D flow MRI can provide non-invasive parameters to estimate mPAP. This study found that vortex duration is correlated with mPAP and could be a useful parameter for non-invasively estimating mPAP in patients suspected of having CTEPH.

JOURNAL OF CLINICAL MEDICINE (2022)

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Article Cardiac & Cardiovascular Systems

Comparison between thermodilution and Fick methods for resting and exercise-induced cardiac output measurement in patients with chronic dyspnea

Susanna Desole et al.

Summary: This study compared cardiac output measurements using thermodilution (TD), direct Fick method (dFM), and indirect Fick method (iFM) at rest and during exercise. The results showed that TD and dFM measurements were comparable during 25-W exercise, but not during unloaded cycling or at rest. The individual differences in cardiac output varied significantly and required careful interpretation to avoid misclassification.

PULMONARY CIRCULATION (2022)

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Article Medicine, General & Internal

Comparison of Repetitive Cardiac Output Measurements at Rest and End-Exercise by Direct Fick Using Pulse Oximetry vs. Blood Gases in Patients With Pulmonary Hypertension

Milos Duknic et al.

Summary: The modified DFp method is a reliable and feasible approach for simultaneous measurement of mPAP and CO without the need for repetitive blood sampling, suitable for assessing cardiac output in patients with pulmonary hypertension.

FRONTIERS IN MEDICINE (2021)

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Review Respiratory System

Cardiac Output Determination in Precapillary Pulmonary Hypertension: A Systematic Review

Leon Genecand et al.

Summary: Research found that in patients with precapillary pulmonary hypertension, the effectiveness of indirect Fick could not be proven, and the studied noninvasive methods could not be considered interchangeable with invasive methods. The median number of quality criteria assessed was 2, indicating significant methodological heterogeneity.

RESPIRATION (2021)

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Letter Cardiac & Cardiovascular Systems