EVALUTION_OF_PROSTHETIC_VALVES_CardiologyPPT.pptx

SpandanaRallapalli 24 views 44 slides Sep 21, 2024
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About This Presentation

Cardiology


Slide Content

EVALUTION OF PROSTHETIC VALVES

APPROACH 2D DOPPLER AND COLOR FLOW REGURGITATION OBSTRUCTION TEE

2D DEHISENCE VEGETATION THROMBUS/PANNUS DEGNERATION OF TISSUE DIFFICULTIES: ECHO REVERBERATIONS

TYPES OF PROSTHETIC VALVES

2D GOALS

M MODE

DOPPLER GOALS

ABNORMAL STRUCTURES

PRIMARY GOAL OF DOPPLER

DOPPLER ASSESMENT

DOPPLER Flow velocity across prosthetic valve Pressure gradient using bernolius eqaution 4V2 Continuity eqa : to find EOA PHT Prosthetic has mild gradient compared with native valve( location,type,size , various degree) Baseline echo after post operative to followup echo for reference

High velocity and PHT Regurgitation and obstruction has high velocity PHT is prolonged for Obstruction. Where pht normal in regurgitation in mitral and tricuspid prosthetic, forward flow is decreased.

PHT Pressure half-time (PHT) is defined as the time required for the pressure gradient to decrease to half of its maximal value, and is an index of stenosis severity. 

Uses of PHT MITRAL PHT OBSTRUCTION : INCREASE REGURGITATION: NORMAL OR DECREASE

LVOT VELOCITY AORTIC LVOT VELOCITY OBSTRUCTION DECREASE forward flow decrease REGURGITATION INCREASE Forward flow increase

OBSTRUCTION WHAT TO SEE VALVE SIZE TYPE OF VALVE LOCATION OF VALVE ANTICOGULANT TREATMENT HOW: MOTION OF ( v alve,Ball , Disc) IS OBSTRUCTED

EOA

DVI

PPM

MANY REASONS FOR HIGH VELOCITY

PHSIOLOGY REGURGITATION

VALVE TYPE

PATHOLOGY REGURGITATION

REGURGITATION VALVULAR Within th sewing ring PARA VALVLAR Eccentric or large jet Marked variance Jet around the swing ring

CLINICAL UTILITY

PARAMETERS FOR MITRAL

PARAMETERS FOR AORTIC

CONTRAST

STRANDS

SUTURES

USE OF TEE

TEE USES

LIMITATION TEE

TAVI

INTRA OPERATIVE TEE USES
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