Echocardiography, Biology

Assignment Help:

Echocardiographic evaluation should be performed in all patients with clinically suspected IE, including those with negative blood cultures.  Not only is TEE the preferred approach in patients with clinically suspected IE in whom TTE is suboptimal it is also the procedure of choice for imaging the pulmonic valve, patients with PVE (especially at the mitral site) and patients who are at high risk for intracardiac complications or those with sign of persistent or invasive infection despite adequate antimicrobial therapy.

The sensitivity of TTE for the detection of vegetations in NVE is less than 65 per cent, although its specificity is excellent. In contrast, in proven NVE the sensitivity for vegetation detection of TEE was 90 to 100 per cent, and in clinically suspected NVE, it ranged from 82 to 94 per cent. In patients with PVE, TTE is limited by the shadowing effect of the mitral valve prosthesis. The sensitivity of TEE for detecting vegetations in PVE, involving mechanical or bioprosthetic devices ranged from 80 to 96 per cent, whereas that of TTE was from 36 to 16 per cent.   Despite the sensitivity of TEE in detecting vegetations in patients with proven IE, echocardiography does not itself provide a definite diagnosis. Vegetations and valve dysfunction may be demonstrated, but determination of causality requires clinical or direct anatomical and microbiological confirmation.  Infectious vegetation cannot be distinguished from marantic lesions, nor can vegetations be distinguished from thrombus or pannus on prostheses. Further more, it is usually not possible to distinguish active from healed vegetations in NVE. Thickened valves, ruptured chordae or valve calcifications and nodules may be mistaken for vegetations, indicating the specificity limitations of echocardiography.


Related Discussions:- Echocardiography

Define counter stain - staining technique, Define Counter Stain - Staining ...

Define Counter Stain - Staining Technique? Finally, the smear is counter stained with a simple basic dye different in colour from crystal violet. Safranin is the most commonly

Acid indigestion, Acid indigestion It is also known as ruminal acidosis...

Acid indigestion It is also known as ruminal acidosis, acute carbohydrate engorgement, rumen over load or lactic acidosis. Ingestion of large quantities of highly fermentable c

How can i become involved in supporting brain research, How can I become in...

How can I become involved in supporting brain research? A. Here are some ways which you can support brain research: Join in activities of Brain Awareness Week. Dona

Conduits-surgery for coronary artery disease, Conduits Figure: Ve...

Conduits Figure: Venous Conduits Reversed saphenous vein was the first conduit used for CABG. 'It is usually harvested from the leg starting above the ankle going up

Preparation of patient for fasting blood sugar analysis, Preparation of Pat...

Preparation of Patient for Fasting Blood Sugar Analysis 1. Blood for fasting blood sugar (plasma glucose) analysis should be drawn after the individual has fasted overnight (8-

Explain haccp, HACCP Normal 0 false false false ...

HACCP Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Define bioavailability of pyridoxine, Define Bioavailability of pyridoxine?...

Define Bioavailability of pyridoxine? A recent review by Gregory confirms that bioavailability of vitamin B 6 in a mixed  diet is about 7570, with approximately 8% of this tot

What is nervous system, What is Nervous System? The nervous system is m...

What is Nervous System? The nervous system is made up of associations of cells called neurons. Bundles of neurons are called nerves. The nervous system is divided into two part

#title, IN WHAT ASPECT ARE CNIDARIANS SIMILAR TO PROTOZOANS

IN WHAT ASPECT ARE CNIDARIANS SIMILAR TO PROTOZOANS

Water demands vary among communities, a)  Water demands vary among communit...

a)  Water demands vary among communities. Discuss some of the factors affecting water uses.  b)  A coastal town has a resident population of 8000 people during the winter months

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd