Off pump coronary artery bypass surgery opcab, Biology

Assignment Help:

Application :  Off Pump Coronary Artery Bypass Surgery (OPCAB)

CABG is done on epicai-dial vessels. Cardio pulmonary by pass is used only to get a still heart for accurate anastomosis. If there is a method of stabilizing a small area of the heart over the coronary artery with the rest or heart beating and maintaining reasonable haemodynamics, it is possible to do the operation off pump (OPCAB) or beating heart surgery. A few ingenious mechanical stabilizers achieve the local stabilization. The most commonly used one currently is "OCTOPUS", which has two blades with suckers. The two blades are placed on either side of the target artery and mild suction applied on the suckers. Another equipment "STARFISH" which resembles its name sake in the ocean, when applied to the apex of the heart helps in exposing any surface of the heart as required without much haemodynamic compromise.

When a partially occluded coronary or a 100 per cent blocked artery with good collaterals is opened, there will be considerable bleeding. To control that, suitably sized intra luminal shunt devices are available. They help to control bleeding, permit distal perfusion and do not interfere with the anastomosis. While the last few sutures are being applied, the shunt is removed arid anastomosis is completed. When a shunt is not used, a carbon dioxide blower will help in keeping the field free of blood.

To perform successful OPCAB good cooperation between the surgeon and the anesthesiologist is needed. Controlled hand ventilation is needed at crucial stages. Arterial pressure and ECC changes like ST-T changes are monitored when heart is rotated or Trans located into light pleura. Trans oesophagenl ECHO helps in rnonitoring region wall motion of left ventricle. Usually the operation is done through median sternotomy. Minimally invasive techniques or a left thoracotomy may be used in selected cases. Befo1.e grafting, hepasin is administered in doses of 1-3 mg/kg. Hypothernlin is be avoided. A pump is kept standby which could be assembled, primed and go1 ready in a matter of few minutes. It is important to make the anastomosis accurate. The advantage of OPCAB is that recovery is faster Patient can be extubated same day, transferred from ICU next day and discharged in 6-7 days time. This brings down the cost of hospitalization significantly.


Related Discussions:- Off pump coronary artery bypass surgery opcab

Why plant life cycle known as alternation of generation, Why is the plant l...

Why is the plant life cycle known as alternation of generations? The plant life cycle is called as alternation of generations because in this cycle there are two dissimilar for

What is biogenetic law and define bilateral symmetry, What is Biogenetic La...

What is Biogenetic Law and define Bilateral symmetry? In brief, ontogeny recapitulates phylogeny. Or, developmental or embryological sequence of an animal repeats the evolution

Explain the method of recombination or crossing-over, The method of recombi...

The method of recombination or crossing-over Which of the following is a false statement regarding the method of recombination or crossing-over? A. Crossing-over takes place

Excretory system, what is the excretory organ of a lizard?

what is the excretory organ of a lizard?

What is a retrovirus, It is a category of viruses having RNA genome and rev...

It is a category of viruses having RNA genome and reverse transcriptase enzyme within virus cuspid.

The stem is often dipped in a hormone powder, Before stem cuttings are plan...

Before stem cuttings are planted, the cut end of the stem is often dipped in a hormone powder. What is the point of this?   The hormone powder having a plant growth substanc

Chemical stress - atmospheric imbalances, Chemical Stress - Atmospheric imb...

Chemical Stress - Atmospheric imbalances At least two components of the environment, oxygen and carbon dioxide that plants require are predominantly in the gaseous form. As yo

Define the requirements of root-end filling materials, Define the Requireme...

Define the Requirements of Root-End Filling Materials 1.  Seal well 2.  Well tolerated by periapical tissues "Biocompatible" 3.  Easily inserted "manipulated" 4.  Unr

Zonation in the lake biome, Q. Zonation in the lake biome? Precipitatio...

Q. Zonation in the lake biome? Precipitation that does not evaporate or penetrate the soil remains on the soil surface resulting in run off which flows down from the mountains

How boiling used for sterilization, Q. How Boiling used for sterilization? ...

Q. How Boiling used for sterilization? Though highly unreliable as a sterilization technique and more effective for disinfection, it is used very often. Boiling water in hot wa

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