Acute heart failure, Biology

Assignment Help:

Acute heart failure

The acute heart failure is characterized by sudden loss of consciousness and falling with or without convulsions. The mucous membranes become pale followed by either recovery or death.

Etiology: Acute heart failure results from (i) filling disorders due to severe tachycardia or severe bradycardia or (ii) when there is more work load on the heart, seen in anaphylaxis and rupture of valves, (iii) myocarditis as seen in peracute form of foot-and-mouth disease (FMD) especially in young dairy animals, (iv) myopathies associated with deficiency of selenium and copper, (v) intravenous rapid calcium therapy, (vi) xylazine administration, (vii) occlusion of coronary artery (myocardial infarction).

Pathogenesis: In tachycardia, the diastolic period is short and ventricular filling is not adequate, thus reducing the cardiac output. When heart rate is slow to a critical point, the cardiac output is also reduced. There is severe degree of anoxia in the tissues. Brain is affected and nervous signs are shown by the animal. Due to reduced arterial blood flow, the mucosa becomes pale.

Clinical signs: Due to respiratory distress animal is dyspnoeic. There is staggering and falling down followed by death. There may be sporadic convulsions. Clinical findings also comprise pale mucosa, absence of palpable pulse or absence of heart sounds. Pulmonary edema is evident on the auscultation of the lungs. When the animal survives longer then hydrothorax or ascites develop.

Treatment: It is not successful due to the shorter course of the disease.


Related Discussions:- Acute heart failure

Can you explain about cardiomyopathies, Q. Can you explain about Cardiomyop...

Q. Can you explain about Cardiomyopathies? Cardiomyopathy is a primary disorder of heart muscle that may cause cardiac dysfunction and is not related to any obvious disease pr

What are dimorphic fungi, Question 1 What are dimorphic fungi? List the cl...

Question 1 What are dimorphic fungi? List the clinical manifestations produced by various dimorphic fungi. Add a note on isolation and identification of various dimorphic fungi

Sonology, Sonology : This is the study of hearing. Sonology is a type of sc...

Sonology : This is the study of hearing. Sonology is a type of science of neologism which is used to describe the study of sound in a variety of disciplines. In medicine, this term

Why is meiosis important for the maintenance, Why is meiosis important for ...

Why is meiosis important for the maintenance of the normal quantity of chromosomes of a species with sexual reproduction? A reduction to a half of the maximum normal quantity o

Fatty acid metabolism, Fatty Acid Metabolism The body has a limited sup...

Fatty Acid Metabolism The body has a limited supply of glucose associative to the energy stored as fat. There are 3 sources of fatty acids for energy metabolism within animals;

Excretory system of animals and human urinary system, steps in urine format...

steps in urine formation and the organs/tissues involve in such process?

Kingdom protists, phyla of animal like protists that have free living membe...

phyla of animal like protists that have free living members

Planeria, differnce between protonephridia and metanephridia

differnce between protonephridia and metanephridia

Gas transportation systems in animals, Q. Oxygen comes from the environment...

Q. Oxygen comes from the environment and carbon dioxide in the end returns to the environment. How do small animals solve the problem of taking away and bringing these molecules fr

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