Explain sinus venosus defect with partial anomalous venous, Biology

Assignment Help:

Explain Sinus Venosus Defect with Partial Anomalous Venous Connection ?

In this defect the atrial septal defect is situated just below the orifice of superior vena cava above the limbus tissue. It is usually associated with anomalous connections of right superior pulmonary vein to the SVC or its junction with the right atrium.

Initial steps of the operation are not different from those described for secundum defect. Pericardium is harvested. Care should be taken while taping SVC above all the pulmonary veins joining anomalously. Direct cannulation or the SVC high up or at its junction with innominate vein will be required. In some cases direct cannulation of innominate vein with a right-angled cannula is preferable. The patient is connected to cardio pulmonary bypass, aorta clamped and cold cardioplegia administered to the aortic root. Caval tapes are snared and atriotomy done which is extended superiorly away from the sinoatrial node without injuring it. Pericnrdial baffle is sutured to direct pulmonary venous blood into the left atrium. Care is taken not to narrow the pulmontlry venous opening to tlie lelt atrium. At times SVC needs widening and this call be achieved by pericardial patch or from right atrial tissue as a V-Y plasty. Inferior vena caval defect with anomalous connection of inferior pulmonary vein is corrected in a similar manner using pericardial baffle.


Related Discussions:- Explain sinus venosus defect with partial anomalous venous

Essentials of Human Diseases and Conditions, How do pathological conditions...

How do pathological conditions affect homeostasis of your body?

Kingdom, general characteristics of sponges

general characteristics of sponges

Types of surgery in exstrophy of the bladder, Types of Surgery   There ...

Types of Surgery   There may be two options for surgical correction. Urinary Diversion In this following procedures are performed:  1)  Uretero sigrnoidostomy  if there  is

Explain of functional property browning and anchor, Explain of Functional p...

Explain of Functional property Browning/Flavour/ Aroma Mode of action  Proteins contribute to browning by reacting with lactose and other reducing sugars present in a form

What is the neurotransmitter of the neuromuscular junction, What is the neu...

What is the neurotransmitter of the neuromuscular junction? How does the nervous system trigger muscle contraction? The nervous cells that trigger the muscle contraction are th

Define prevention of idd by iodized oil, Define prevention of idd by Iodize...

Define prevention of idd by Iodized Oil? The other approach employed as a specific measure for women and children in hyper-endemic areas is injection of iodized oil. Intramuscu

Explain amantadine, Amantadine Treatment with oral amantadine or rimant...

Amantadine Treatment with oral amantadine or rimantadine begun within 48 hours after the onset of illness decreases the duration of fever and symptoms by about 1 day. Whether t

Explain the presumptive test - most probable number test, Explain the Presu...

Explain the Presumptive Test - Most Probable Number Test? The Presumptive test is used to detect and estimate coliform population of a water sample. This test is carried out by

What are nymph and imago, What are nymph and imago? Nymphs are larvae o...

What are nymph and imago? Nymphs are larvae of hemimetabolic insects (like grasshoppers). They are very same to the adult insect although smaller. In holometabolic insects (lik

Explain evolutionary classification, Evolutionary Classification Evolut...

Evolutionary Classification Evolutionary classification combines aspects of both phenetic and cladistic systematic. Evolutionary taxonomists attempt to show in their classifica

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