Explain the techniques of operation in post myocardial, Biology

Assignment Help:

Explain the Techniques of Operation used in post myocardial infarction ventricular septal defect?

Techniques of Operation :  If the patient's condition is stable cardiac catheterisation, coronary angiography and left ventriculography are done. Otherwise patients are taken up based on echo and doppler studies. Pre-operative intra aortic balloon pump (IABP) and pulmonary arterial pressure monitoring (Swan-Ganz catheter) will be of great help. Operation can be safely postponed if there is:

1) Adequate cardiac output with no evidence of cardiogenic shock.

2) Absence of pulmonary oedema and pulmonary venous hypertension.

3) Absence of fluid retention on treatment with diuretics and digitalis.

4) Good renal function.

Patient should be under close observation during this period and urgent operation undertaken if there is deterioration. Haemodynamically compromised patients are taken up for surgery with a Swan

Ganz pulmonary arterial catheter in situ and on intra aortic balloon pumps (IABP). At times the surgeon may have to put the patient on cardiopulmonaty bypass under local anaesthesia using femoral arterial and venous cannulae before' anaesthesia. This helps to overcome haemodynamic collapse at the time of induction of anaesthesia.

Initial steps of the operation are the same as described for coronary artery bypass grafting. Saphenous vein is harvested during median stelnotomy and preparation for cardiopulmonaty bypass. Ascending aorta and superior and inferior vena cavae are cannulated and snares passed around both vena cavae preparatory to total cardio pulmonary bypass. Antegrade and retrograde cardioplegia through aortic root and coronary sinus are given for good myocardial protection.


Related Discussions:- Explain the techniques of operation in post myocardial

How to reduce the stresses on the implant, How to reduce the stresses on th...

How to reduce the stresses on the implant i) There is need to reduce the stresses on the implant - ii) Frequent recall for maintenance or hygiene appointments. iii) Gingi

Deficiency diseases-rickets, Rickets Rickets is a complex mineral defic...

Rickets Rickets is a complex mineral deficiency disease of young, growing animals. It is characterized by defective mineralization of growing bones, persistence of hypertrophic

What is the incubation period of an infection, Q. What is the incubation pe...

Q. What is the incubation period of an infection? The Incubation period is the time interval between the infection by an agent that causes disease and the first signs or sympto

Illustrate the applications of vitamin D, Illustrate the Applications of Vi...

Illustrate the Applications of Vitamin D Vitamin D 2 is mainly used in the preparation of various drug formulations. For the animal feed industry, a mineral stable dry powder

What are cerebrovascular accidents, Q. What are cerebrovascular accidents? ...

Q. What are cerebrovascular accidents? The Cerebrovascular accident (CVA), as well known as stroke, is the generic name given to infarction (tissue and cellular death by hypoxi

Illustrate the term cilia, Illustrate the term Cilia? A cellular hairli...

Illustrate the term Cilia? A cellular hairlike locomotory structure which comprises an extension of the plasma membrane surrounding a 9+2 organization of microtubules. Unlike f

How can the hemolytic disease of the newborn be prevented, How can the hemo...

How can the hemolytic disease of the newborn be prevented? The Erythroblastosis fetalis can be prevented if in the first delivery of a Rh+ child from a Rh- mother serum contain

Define the term epimerism, Define the Term Epimerism? In addition to D ...

Define the Term Epimerism? In addition to D and L isomerism sugars also exhibit epimerism. Hexoses that differ from each other as a result of variation of H and OH on carbons 2

Can you explain toxic alkaloids, Q. Can you explain Toxic alkaloids? Al...

Q. Can you explain Toxic alkaloids? Alkaloids are the nitrogen heterocycles which occur mainly m plants as their salts of common carboxylic aciak such as citric, lac

Explain puewabilitation programme in details, Explain puewabilitation progr...

Explain puewabilitation programme in details ? Education, counselling, and behavioural interventions are important elements of cardiac rehabilitation. In this guideline, "educ

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