Atrial arrhythmias-peri operative problems, Biology

Assignment Help:

Atrial Arrhythmias :  Atlial fibrillation is the most common rhythm abnormality after CABG. Paroxysmal atrial tachycardia and atrial flutter are less common. Increased sympathetic stimulation and withdrawal of beta-blockers may be causative factors. The treatment is based on two principles: (1) Rate Control, and (2) Rhythm Control. Rapid intra venous digitalization is seldom used these days. If haemo dynamics is stable, beta-blockers are used intravenously with caution. Propranolol 0 .5 mg LV every two minutes up to a maximum dose of 4mg will help in most cases. Verapamil 40mg through naso gastric tube or up to 5mg IV are considered dangerous to treat AF. The currently favoured drug is amiodarone in doses of 5mgIkg given over 20 minutes as an infusion followed by continuous infusion for 4-8 hrs. Oral anliodarone therapy is then continued.

Atrial flutter and paroxysmal atrial tachycardia (PAT) can be controlled by rapid atrial pacing. Most of the inotropic agents make these arrhythmias worse. It is preferable to give these patients amrinone, which is an inodilator. Beta-blockers and Verapamil are also helpful. Heart block is treated by pacing through epicedial wires inserted at the time of operation or urgent transvenous temporary pacing.

 


Related Discussions:- Atrial arrhythmias-peri operative problems

Define quantitative procedures in carbohydrates, Define Quantitative Proced...

Define Quantitative Procedures in Carbohydrates? You have learnt how to identify some individual monosaccharides, disaccharides and polysaccharides. However, if we were asked t

Determine what the abnormal levels of afp signal, Determine what the abnorm...

Determine what the abnormal levels of AFP signal Abnormal levels of AFP may signal the following: Open neural tube Defect (ONTD) Down syndrome Other chromosoma1

Explain 2nd type of hypersensitivity, It is IgG mediated cytotoxic hyperse...

It is IgG mediated cytotoxic hypersensitivity. Typical manifestations contain erythroblastosis fetalis, hemolytic anemia, blood transfusion reactions etc.

What possible combinations of chromosomes will be present, A diploid cell c...

A diploid cell contains three pairs of homologous chromosomes designated C1 and C2, M1 and M2, and S1 and S2; no crossing over occurs. What possible combinations of chromosomes

Biological oxygen demand - effect on water bodies, Biological Oxygen Demand...

Biological Oxygen Demand - Effect on Water Bodies Addition of biodegradable matter exerts demand on oxygen of the water body. The demand of oxygen is directly related to incre

A balanced diet must contain enough energy, A balanced diet must have enoug...

A balanced diet must have enough energy to meet the body's needs. What else must it have?    In addition to sufficient energy, a balanced diet must have proteins, car

Is dwarf pampas grass invasive, Is dwarf pampas grass invasive? No. the...

Is dwarf pampas grass invasive? No. the root system is shallow and extends only as far as the plant is large. Though if the irrigation system is installed poorly and the pipes

Ozone layer and its depletion, About 90% of ozone of atmosphere resides in ...

About 90% of ozone of atmosphere resides in stratosphere (16 to 40 km) layer of atmosphere as ozone layer. It protects life on this planet from harmful U.V. radiations. In absence

Systematics, binomial nomenclature is not applicable to

binomial nomenclature is not applicable to

Concentration of noradrenergic cell bodies, The major concentration of nora...

The major concentration of noradrenergic (and adrenergic) cell bodies is found in locus ceruleus a nucleus in the reticular formation. The axons of these neurons project through 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