The EAE Textbook of Echocardiography

Galderisi, M; Mondillo, S.

doi:10.1093/med/9780199599639.001.0001

Cited by 31 publications

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“…Remember that the gastroesophageal junction is a vulnerable zone and that probe manipulation may place the relatively fixed tissues under considerable tension. 6,7 Depending on the center and the operator skills, esophageal varices may be considered a relative contraindication to TEU. 8 However, in OLT candidates, TEE has been shown to be both safe and feasible.…”

Section: Probe Insertion Tips and Tricksmentioning

confidence: 99%

“…The white arrow indicated the guidewire for transcutaneous veno-venous bypass placement; LA = left atrium; RA = right atrium; SVC = superior vena cava short-axis diastolic area (ASxd) minus left ventricular systolic shortaxis area (ASxs) divided by ASxd (ASxd-ASxs/ASxd). 7 Left-ventricular dysfunction is rarely seen after anesthesia induction, although 23% of transplanted patients exhibit abnormal cardiac response. 29 This is due to the fact that the peripheral vasodilatation associated with an impaired cardiac ventricular response is the result of end-stage liver disease known as "cirrhotic cardiomyopathy" in which the combination of decreased systemic vascular resistance and central hypovolemia leads to a hyperdynamic circulatory state.…”

Section: Left Ventricular Functionmentioning

confidence: 99%

“…An external venovenous bypass facilitates hemodynamic stability for the passage of the preload from the lower body to the upper body 19. However, in a center such as ours where the modified "piggyback" technique is used and partial inferior vena cava clamping performed, fluid should be given to replace the transit of unavailable preload prior to the application of the IVC tangential clamp 7,. Of course, the increased obstacle to IVC vein drainage can precipitate renal function during this phase 52.…”

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confidence: 99%

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Transesophageal ultrasonography during orthotopic liver transplantation: Show me more

et al. 2018

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The first perioperative transesophageal echocardiography (TEE) guidelines published 21 years ago were mainly addressed to cardiac anesthesiologists. TEE has since expanded its role outside this setting and currently represents an invaluable tool to assess chamber sizes, ventricular hypertrophy, and systolic, diastolic, and valvular function in patients undergoing orthotopic liver transplantation (OLT). Right-sided microemboli, right ventricular dysfunction, and patent foramen ovale (PFO) are the most common intra-operative findings described during OLT. However, left ventricular outflow tract obstruction and left ventricular ballooning syndrome are more difficult to recognize and less frequent. Transesophageal ultrasonography (TEU) during OLT is also underused. Its applications are as follows: (1) assistance in the difficult placement of pulmonary arterial catheters; (2) help with catheterization of great vessels for external veno-venous bypass placement; (3) intra-operative evaluation of surgical liver anastomosis patency, if feasible, through the liver window; and (4) intra-operative investigation of "acute hypoxemia" due to pulmonary and cardiac issues using trans-esophageal lung ultrasound (TELU). The aims of this review are as follows: (1) to summarize the uses of TEE and TEU throughout all phases of OLT, and (2) to describe other new feasible applications.

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Section: Probe Insertion Tips and Tricksmentioning

confidence: 99%

Section: Left Ventricular Functionmentioning

confidence: 99%

mentioning

confidence: 99%

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Transesophageal ultrasonography during orthotopic liver transplantation: Show me more

et al. 2018

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The kinocardiograph for assessment of changes in haemodynamic load in patients with chronic heart failure with reduced ejection fraction

et al. 2021

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AimsThe kinocardiograph (KCG) is an unobtrusive device, consisting of a chest sensor, which records local thoracic vibrations produced in result of cardiac contraction and ejection of blood into the great vessels [seismocardiography (SCG)], and a lower back sensor, which records micromovements of the body in reaction to blood flowing through the vasculature [ballistocardiography (BCG)]. SCG and BCG signals are translated to the integral of cardiac kinetic energy (iK) and cardiac maximum power (Pmax), which might be promising metrics for future telemonitoring purposes in heart failure (HF). As a first step of validation, this study aimed to determine whether iK and Pmax are responsive to exercise-induced changes in the haemodynamic load of the heart in HF patients. Methods and resultsFifteen patients with stable HF with reduced ejection fraction performed a submaximal exercise protocol. KCG and cardiac ultrasound measurements were obtained both at rest and at submaximal exercise. BCG iK over the cardiac cycle (CC) increased significantly (0.0026 ± 0.0017 to 0.0052 ± 0.0061 mJ.s.; P = 0.01) during exercise, in contrast to a non-significant increase in SCG iK CC. BCG Pmax CC increased significantly (0.92 ± 0.89 to 2.03 ± 1.95 mJ/s; P = 0.02), in contrast to a non-significant increase in SCG Pmax CC. When analysing the systolic phase of the CC, similar patterns were found. Cardiac output (CO) ratio (i.e. CO exercise/CO rest) showed a moderate, significant correlation with BCG Pmax CC ratio (r = +0.65; P = 0.008) and with SCG Pmax CC ratio (r = +0.54; P = 0.04). Conclusions iK and Pmax measured with the KCG, preferentially using BCG, are responsive to changes in the haemodynamic load of the heart in HF patients. The combination of the BCG and SCG sensor might be of added value to fully understand changes in haemodynamics and to discriminate between an HF patient and a healthy individual.

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Mitral Regurgitation Echocardiographic Evaluation in Patients with Implanted Devices

Toader

2024

Echocardiographic Evaluation of Patients With Implanted Devices

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The EAE Textbook of Echocardiography

Cited by 31 publications

References 0 publications

Transesophageal ultrasonography during orthotopic liver transplantation: Show me more

Transesophageal ultrasonography during orthotopic liver transplantation: Show me more

The kinocardiograph for assessment of changes in haemodynamic load in patients with chronic heart failure with reduced ejection fraction

Mitral Regurgitation Echocardiographic Evaluation in Patients with Implanted Devices

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