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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.
List the advantages of IOPA and OPG a) Advantages of IOPA are as follows It is a useful high yield modality for ruling out local bone or dental disease It is of value
The modern water treatment plan is often called upon to perform wonders with the water fed to it. The clear, safe , even tasteful water that comes from a faucet may have started a
How are the antibodies against the Rh factor formed? The Anti-Rh antibodies are made by humoral immune response. When the Rh- individual makes contact with the Rh factor this i
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Ion channel-linked receptors will transmitter-gated ion channels or ionotrophic receptors that are included in the rapid synaptic signaling among electrically excitable cells. No
Examination of the Prosthesis It is important to examine the prosthesis thoroughly. This involves assessing mobility, checking screws, evaluating attachments and porcelain res
Q. What is the epidemiological association between hemophilia and HIV infection? In the past the blood banks did not usually perform HIV detection tests and many hemophilic pat
What do protozoans "eat"? Do they move in search for food? Protozoans are heterotroph beings, i.e., they do not make their own food and therefore they require to search for it
Why must our cells duplicate the DNA molecules before they divide in Mitosis? Why do chromosomes condense by wrapping around the histone protiens durning the cell cycle?
Explain about the Asepsis - Methods of Food Processing? Food is a living system and it has natural protection mechanisms in its raw agricultural state. Just removed once from t
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