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INTRODUCTION : It took just hundred years for cardiac surgery to advance to what it is today. Before 1896, surgeons considered heart to be "inviolable" and it was stated that operating directly on the pulsating heart can be done but the patient will not survive, In 1896, Ludwig Rehn, a German Surgeon, sutured a wound in the heart caused by stab injury. Discovery of X-ray in 1895 and electrocardiographic recording in 1924, paved the way for the better understanding of diseases of the heart. In 1929, Warner Frossman from Germany did the first right heart catheterization on himself.
Rehn and Sauerbrock from Germany did the first partial pericardiectomy for constrictive pericarditis (1913). Mitral stenosis was one of the earliest intra cardiac lesions to be treated surgically. Cutler and Levine (1923) using a special knife attached to the finger and Souttar is using digital dilatation were the earliest surgeons to treat mitral stenosis. However, effective closed mitral valvotomy procedures were established by Harken and Bailey in the US and Brock in UK.
Problem of Polarity The control of polarity in regenerating coelentrates like hydra has received much attention for many years. You are already aware that while a hydra is cu
Define Supplementation to prevention of iron deficiency anaemia? Supplementation with low doses of iron is necessary to prevent anaemia in particular groups of people. Fortifie
what do you mean by alkoloids how are they usedin daily life what are the different types of alkoloids?
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Discovery of Plant Hormones To date, five major classes of plant hormones have been discovered namely auxins, gibberellins, cytokinins, abscisic acid and ethylene. It is possi
Q. Pathophysiology of constrictive pericarditis? Ans. The thickened and rigid pericardium causes constriction of the heart and restricts ventricular dialatation and diasto
Over the past decade, the conceptual understanding of heart failure has changed significantly. Several large clinical trials have demonstrated that non-pharmacological and pharmaco
Define Potential Health benefits from resistant starch? Like dietary fibre, RS can also play a potential role in helping to maintain or improve health of an individual. As you
OPI A T E NARCOTICS - They suppress brain activity and relieve pain popularly known as pain killers. They are sedative and astringent in nature. An astringent cause
Pyruvate Pyruvate has three different fates. Under aerobic conditions, pyruvate enters mitochondriaand is converted to acetyl CoA. The acetyl CoA enters thecitric acid cycle.
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