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The Tamil Nadu Dr. M.G.R. Medical University (abbr. TNMGRMU) is a government medical university situated in Guindy in the southern part of the city of Chennai, Tamil Nadu, India. It is about 7 km from the Chennai International Airport and about 13 km from the Chennai Central Railway Station .
In March 1964, Jean Lenègre published a paper discussing the pathology behind the gradual damage and scarring of the ventricular conduction system. [ 6 ] In November 1964, Maurice Lev published a paper with similar findings as Lenègre where he saw the degenerative processes of the ventricular conduction system associated with calcification in ...
The conduction system consists of specialized heart muscle cells, situated within the myocardium. [3] There is a skeleton of fibrous tissue that surrounds the conduction system which can be seen on an ECG. Dysfunction of the conduction system can cause irregular heart rhythms including rhythms that are too fast or too slow.
Cardiac physiology or heart function is the study of healthy, unimpaired function of the heart: involving blood flow; myocardium structure; the electrical conduction system of the heart; the cardiac cycle and cardiac output and how these interact and depend on one another.
Second-degree atrioventricular block (AV block) is a disease of the electrical conduction system of the heart. It is a conduction block between the atria and ventricles. The presence of second-degree AV block is diagnosed when one or more (but not all) of the atrial impulses fail to conduct to the ventricles due to impaired conduction.
In comparison to second-degree atrioventricular block, in first-degree block there is an absence of non-conduction or "dropped beats." In an electrophysiology study, this corresponds to a prolonged A-H interval that shows the time between atrial depolarization and His bundle depolarization near the AV node.
Image showing the cardiac pacemaker or SA node, the primary pacemaker within the electrical conduction system of the heart The cardiac pacemaker is the heart 's natural rhythm generator. It employs pacemaker cells that produce electrical impulses, known as cardiac action potentials , which control the rate of contraction of the cardiac muscle ...
The college offers preclinical courses and elective postings, the main course being the MBBS. Degree courses: MD Radio-diagnosis (From 2013), MD general medicine, MD Pediatrics; MS courses: MS general surgery, MS Orthopedics, MS OG; Diploma courses: DGO, DCh, DA, DRDT; MCh courses: MCh paediatric surgery, MCH Neurosurgery, MCH Plastic surgery