What are the causes of right sided heart failure.........

The most common cause of right-sided heart failure is actually left-sided heart failure (either systolic or diastolic heart failure).

Here r the causes in details:

1-Left-sided heart failure:The left ventricle does not pump blood efficiently, leading to pressure buildup behind the left side of the heart that eventually causes the right side of the heart to fail.Blood backs up behind the left ventricle into the left atrium, in the lungs, & then eventually in to the right ventricle, which also eventually fails, allowing blood to then back up farther into the extremities, the liver, & the other organs.

2-Chronic lung diseaseIncludes emphysema, pulmonary embolism, & other causes of pulmonary hypertensionHigh blood pressure in the pulmonary arteries increases the workload of the right ventricle, eventually causing the right ventricle to fail.

3-Coronary artery disease:Blockage of the arteries that supply blood to ur heartCAD can cause left-sided heart failure leading to right-sided heart failure or can directly cause right-sided heart failure by blocking blood supply to the right ventricle.

4-Pulmonic stenosis:Narrowing of the pulmonic valve that limits blood flow out of the right ventricleIncreases the work of the right ventricle; similar to chronic lung disease

5-Tricuspid stenosis :Narrowing of the tricuspid valve Limits blood flow out of the right atrium, causing enlargement of the right atrium & backup of blood flowing to it.

6-Tricuspid regurgitation:Tricuspid valve does not close properly, causing blood in the right ventricle to flow back into the right atriumCauses volume overload of the right ventricle, which eventually causes right ventricular dilatation & failure.

7-Pericardial constriction:The pericardium is a membrane sac around the heart. Repeated or ongoing inflammation of it causes stiffening & thickening & prevents the heart from expanding normally to pump. A thickened pericardium restricts the heart is ability to pump effectively.

8-Left-to-right shunt:An abnormal connection between the left & right side of the heart, usually present from birth.Causes a volume overload of the right ventricle, similar to tricuspid regurgitation

Congestive heart failure
Ischemic heart disease
Hypertension (with left ventricular hypertrophy)
Valvular disease (primarily MR, AS, AR)
Hypertrophic cardiomyopathy
Congenital heart disorders (e.g., ASD, VSD, PDA, coarctation of the aorta, Ebstein is anomaly, tetralogy of Fallot)
Idiopathic cardiomyopathy
Alcoholic cardiomyopathy
Lung disease (leading to right-sided enlargement)
–Pulmonary embolus
–COPD
–Cor pulmonale
–Primary pulmonary hypertension
Subacute bacterial endocarditis
Myocarditis
Renal failure (risk of pericardial effusion)
Anemia
Scleroderma
Systemic lupus erythematosus
Sickle cell disease
Marfan is syndrome
Pregnancy
Drugs (numerous drugs r cardiotoxic)
Postradiation
Normal, “athletic” heart
Mediastinal mass
Kyphoscoliosis
Rheumatoid arthritis
Less common etiologies include infiltrative diseases (e.g., amyloidosis, hemochromatosis, atrial myxoma, endocardial fibroelastosis, Fabry is disease, Hurler is syndrome, Pompe is disease), epicardial fat pad, carcinoid, acromegaly, hyper- or hypoparathyroidism, & severe cases of hypocalcemia, hypomagnesemia, and/or hypophosphatemia