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Venous; Return (Anomaly) clinical trials

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NCT ID: NCT04514939 Not yet recruiting - Leg Edema Clinical Trials

Elevate to Alleviate Evidence Based Study

ETA
Start date: September 1, 2020
Phase:
Study type: Observational

Venous return in the circulatory system of lower limbs results from the interaction of several mechanisms, and reflects the balance between blood inflow and outflow. Blood outflow improves during sleeping because of the lying position especially with leg elevation. In fact, patients with chronic venous disease (CVD) improve leg symptoms in lying position and with leg elevation. The aim of this study is to evaluate the level of comfort of hospital inpatients, without CVD, if they lie with a moderate leg elevation during hospital stay.

NCT ID: NCT03576261 Completed - Heart Failure Clinical Trials

Heart Failure and Hemodynamic Stability During Anesthesia Induction

Start date: August 1, 2018
Phase: N/A
Study type: Interventional

The study aim is to investigate whether preoperative heart failure has impact on hemodynamic stability during anesthesia induction by target controlled infusion of anesthesia (TCI) in non-cardiac, non-morbidly obese surgery.

NCT ID: NCT03572894 Completed - Clinical trials for Venous; Return (Anomaly)

Comparison of PVI and RPVI

RPVI
Start date: July 25, 2018
Phase:
Study type: Observational

Pleth Variability Index (PVI) is a non-invasive and automated measure of the respiratory variations of plethysmography during mechanical ventilation. PVI is extracted via an algorithm implemented on Masimo Radical 7 device (Masimo, Irvine, CA). PVI is commonly used in anesthesiology and has been validated to predict fluid responsiveness and optimize fluid administration in the surgical setting. However, the signal/noise ratio of PVI makes acute changes in PVI somewhat difficult to interpret at the bedside. Subsequently, a new algorithm entitled RPVI (Rainbow Pleth Variability Index), has been developed in order to improve the signal/noise ratio of PVI and facilitate its clinical use by practitioners. The details of this new proprietary built-in algorithm are unknown and no data are available to date. Therefore, the main objective of the study was to compare RPVI and PVI during dynamic changes in venous return induced by a tidal volume (Vt) challenge during mechanical ventilation in anesthetized patients. The hypothesis was that the agreement between both dynamic indices would be good.

NCT ID: NCT03349593 Completed - Heart Failure Clinical Trials

Prevalence of Hypovolemia and Heart Failure in Non-cardiac Surgery

Start date: December 1, 2017
Phase:
Study type: Observational

Prevalence of biventricular function of the heart and preoperative level of venous return is not known in non-cardiac non-morbid obese population. The aim of the study is to assess the preoperative function of the heart and status of hypovolemia on the day of surgery.