Changes in pulmonary vein flow pattern during volume loading

Smiseth, Otto A.; Lødemel, Knut; Riddervold, Fridtjov; Blaha, Mojmír

doi:10.1093/cvr/27.3.411

Cited by 6 publications

(2 citation statements)

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“…As LASs, is to a great extent, influenced by LV deformation, LA strain rate during atrial contraction, in our patients, seem also to be influenced by its LV counterpart. Atrial contraction is an important phase of the atrial function and is the first to face any rise of LV end-diastolic pressure, in patients with LV disease, which results in significant prolonged time flow reversal in the pulmonary veins [ 28 ]. Our strong correlation between the strain rate of the two chambers, LA and LV, during end-diastole supports an important evidence for LA-LV function interaction in patients with raised LA pressure.…”

Section: Discussionmentioning

confidence: 99%

Left atrial strain rate during atrial contraction predicts raised pulmonary capillary wedge pressure: evidence for left atrio-ventricular interaction

Lindqvist

Henein

2021

Int J Cardiovasc Imaging

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This study aimed to assess the relationship between different LA strain components and PCWP as well as to the relationship with other established methods. We studied 144 symptomatic patients, age 63 ± 14 years, 54 males, using conventional transthoracic echocardiography protocols, including LA and LV myocardial deformation from speckle tracking technique investigations along with simultaneous right heart catheterization (RHC) using established techniques. From RHC, pulmonary artery pressure (PAP), and pulmonary capillary wedge pressure (PCWP) were measured and pulmonary vascular resistance (PVR) calculated. LA strain rate during atrial contraction (LASRa) was the strongest correlate with PCWP (r2 = − 0.40, p < 0.001), over and above both LASR during LV systole (LASRs) and LA longitudinal strain during ventricular systole (LASs) (r2 = 0.21 and 0.19, respectively, p < 0.001 for both). The correlation between LASRa and PCWP was stronger in patients with post-capillary PH compared to pre-capillary PH (r2 = 0.21 vs. r2 = 0.02, respectively). The strongest relationship between LASRa and PCWP was in patients with enlarged LA volume > 34 ml/m2 (r2 = 0.60, p < 0.001). In all patients LASRa < = 0.9 1/s was 88% accurate in predicting LA pressure > 15 mmHg which was superior to recently proposed uni- and multi-variable models. LASR during atrial contraction is the strongest predictor of PCWP, particularly in patients with post-capillary PH and with dilated LA cavity. Furthermore, it proved superior to recently proposed uni- and multi-variable based algorithms. Its close relationship with LV strain rate counterpart reflects important left heart chamber interaction in patients with raised LA pressure.

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Section: Discussionmentioning

confidence: 99%

Left atrial strain rate during atrial contraction predicts raised pulmonary capillary wedge pressure: evidence for left atrio-ventricular interaction

Lindqvist

Henein

2021

Int J Cardiovasc Imaging

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“…Although the pulmonary venous flow reflects the left ventricular hemodynamic conditions and is used to assess diastolic function, the propagation of the systolic pulmonary artery pressure may have some involvement in its genesis, especially on the second systolic component, which could determine changes directly related to increased volume or pulmonary artery pressure . This response of the pulmonary venous flow to volume changes was observed both experimentally and in individuals undergoing coronary artery bypass graft surgery, using a Swan‐Ganz catheter after crystalloid solution infusion with an increase of at least 20% in wedge pressure above the baseline …”

Section: Discussionmentioning

confidence: 98%

Pulmonary Venous Flow Index as a Predictor of Pulmonary Vascular Resistance Variability in Congenital Heart Disease with Increased Pulmonary Flow: A Comparative Study before and after Oxygen Inhalation

et al. 2013

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Determinants of forward pulmonary vein flow

Barbier

Solomon

Schiller

et al. 2000

Journal of the American College of Cardiology

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In an experimental model of LV acute ischemia of limited duration, the main independent predictors of PV systolic anterograde flow velocities are LA relaxation and compliance (LA peak v pressure) and LV systole--all vis a fronte factors. In the setting of mildly increased LA pressures, PV systolic flow (LA reservoir filling) is an independent predictor of PV early diastolic flow (LA early conduit).

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Changes in pulmonary vein flow pattern during volume loading

Cited by 6 publications

References 0 publications

Left atrial strain rate during atrial contraction predicts raised pulmonary capillary wedge pressure: evidence for left atrio-ventricular interaction

Left atrial strain rate during atrial contraction predicts raised pulmonary capillary wedge pressure: evidence for left atrio-ventricular interaction

Pulmonary Venous Flow Index as a Predictor of Pulmonary Vascular Resistance Variability in Congenital Heart Disease with Increased Pulmonary Flow: A Comparative Study before and after Oxygen Inhalation

Determinants of forward pulmonary vein flow

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