Cannulation-procedures of oxygenators, Biology

Assignment Help:

Cannulation :  Typically blood is drained by gravity through two cannulae inserted into the superior and inferior vena cavae. During bypass, if the SVC and IVC are snared, the entire venous return to the heart is diverted to the pump (total cardio pulmonary bypass). Whenever the right side of the heart has to be opened, the patient has to be on total bypass. Otherwise, when a chamber is opened, air will enter the tubing, causing air lock and cessation of venous retu1-n. For an aortic valve replacement or coronary artery bypass, the right side need not be opened. So the operation can be done using a single, two stage venous cannulae passing through right atrium into the inferior vena cava (atrio-venous cannula). The oxygenated blood is returned through an arterial cannula inserted into the ascending aorta or femoral artery.

 


Related Discussions:- Cannulation-procedures of oxygenators

Explain the bioavailability of nutrients, Explain the Bioavailability of nu...

Explain the Bioavailability of nutrients? The amount of many nutrients needed in the diet depends on the absorption or bioavailability of the nutrients. Bioavailability is defi

Define anaemia in pregnancy, Define Anaemia in Pregnancy? Anaemia is th...

Define Anaemia in Pregnancy? Anaemia is the most common complication and is often compounded by low socio- economic status. However, it is seen frequently in upper income women

Cell theory, why is cosmozoic theory considered to be true?

why is cosmozoic theory considered to be true?

Explain about gamma diversity, Q. Explain about gamma diversity? Gamma ...

Q. Explain about gamma diversity? Gamma (g) richness refers to the rate of change across larger landscape gradients and gamma diversity is a measure of the overall diversity fo

Biochemistry, help me in writing assignment on racemization,mutarotation.

help me in writing assignment on racemization,mutarotation.

Define hydrolytic rancidity - lipolysis, Define hydrolytic rancidity Li...

Define hydrolytic rancidity Lipolysis is a major action occurring during deep fat frying due to large amounts of water introduced from the food and the relatively high temperat

Protozoans, what are vhrmful effects of protozoans

what are vhrmful effects of protozoans

Respiration would cease even oxygen and food were supplied, If a tissue was...

If a tissue was heated to 65ºC for 10 minutes, respiration would cease even if oxygen and food were supplied. Why is this? A temperature of 65°C for 10 minutes would denature

Prior to the solving of the structure of dna, Prior to the solving of the s...

Prior to the solving of the structure of DNA, Erwin Chargaff calculated the amounts of the four nucleotides (A, T,G,C) and made which of the following conclusions? A. All four

Entamoeba histolytica, Entamoeba Histolytica Losch (1875), for the fir...

Entamoeba Histolytica Losch (1875), for the first time, described the disease symptoms of infection of Entamoeba histolytica. However, it was only in 1903 that Schaudin gave t

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