Doctor insights on:
Av Shunt Vs Av Fistula
Av fistula, av graft, subclavian or femoral catheter, av shunt permanent or temporary, which is better?
A fistula is an abnormal connection between two places. Most commonly, it originates somewhere in the intestine and communicates to another location in the intestine or in the skin. A fistula can develop after abdominal surgery, with inflammatory bowel disease, cancer, anorectal abscess, and ...Read more
Don't have to be: It takes a surgical procedure to connect the end if a vein to the side of an artery (create an av fistula). Once created, it will take another surgical procedure to shut the fistula down if need be. Most often they are kept in place even if not used as a back-up system for dialysis access. ...Read moreSee 1 more doctor answer
What is atrial flutter with variable AV block with premature ventricular or aberrantly conducted complexes? is same with AV Block heart degres 1?
Permanent w/o repair: An AV fistula, or arterial-venous fistula, is an abnormal connection between an artery & vein that allows high pressure arterial blood to travel into the low pressure venous system. It can be caused by traumatic blood vessel injury or purposely created surgically by a doctor (e.g for dialysis access). An AV fistula is always permanent unless repaired surgically or with covered stenting of vessels. ...Read moreSee 2 more doctor answers
Good: If the defect is not overly large, and is located in the center part of the atrial septum (typically an osmium secundum atral septal defect), and there are no associated cardiovascular problems, the short-term and long-term outcomes are very good and catheter based closure is safe in experiences centers. ...Read more
Milliseconds: When there is a delay in conduction between the atria and ventricles, av block is present. If the delay exceeds 200 milliseconds, 1st degree block is present. If delay progresses to intermittent interruption of conduction, 2nd degree block is present. If there is complete interruption, so the atrial and ventricle beat independently, 3rd degree block is present. ...Read moreSee 1 more doctor answer
Mobitz I : Second degree mobitz i av block occurs when the pr interval gradually lengthens followed by a non-conducted p-wave. ...Read more
If av node depolarizes faster than sa node, would heart rate equal rate of av node depolarization?
Av node: There can be competition between the sinus node and av node when the av node depolarization rate is similar to that of the sinus node. If the av node is faster than the sinus, then it can take over and cause av nodal escape rhythm the rate usually would be that of the av node, but can be more if some sinus beats get through. ...Read more
Abnormal lung veins: The pulmonary veins are the vessels that normally bring blood with oxygen back to the heart from the lungs. Supracardiac tapvr is when these veins drain to the innominate vein which eventually brings that blood back to the right side of the heart rather than the left. This requires surgical repair. Babies born with this usually have much lower than normal oxygen levels and appear blue. ...Read more
Sinoatrial node.: The normal heart rate "pacemaker" center is in the sinoatrial node, a part of the right atrium. Ectopic atrial tachycardia means that the pacemaker region (the part that is setting the heart rate) is in another location, & is acting erratically. Atrial tachycardia implies that it is the sinoatrial node that is acting erratically. They are similar, but the heartbeat starts at different points. ...Read more
My recent EKG reads sinus brady with 1st degree AV Block incomplete right bundle branch block. Am I at a greater risk for heart failure or a fib?
Correct: AllButBrady: damaged muscle cells, most commonly from blood supply issues (artery disease, by US autopsy studies >8 decades, present 1/2 population by age 7), arteries enlarge, not narrow, thus not clinically apparent for decades until vulnerable plaques rupture releasing WBCs triggering clots & blood flow blocked to capillaries. Same issue underlying atrial fib. All issues missed by conventional tests. ...Read moreSee 1 more doctor answer
Please can you explain what atrial flutter with variable av block
compatible with a bundle branch block. Possible inferior infarction, probably old is?
ECG interpretation.: Atrial flutter: your heart rhythm is abnormal (the atria are contracting very rapidly); variable block: there are a variable number of atrial contractions for every ventricular contraction. A bundle branch block: the ECG complex representing each ventricular contraction is widened due to a block of one branch of your heart's conduction system. Q waves on the ECG suggest an infarct (? Age). ...Read moreSee 2 more doctor answers
Link artery to vein: The carotid artery, the main supply to the head, can establish a direct connection to the veins in the cavernous sinus lead to pronounced elevation of pressure in the veins which will dilate throughout the front of the head and can lead to a deadly leak. If you suspect this you need to see your doctor immediately (or an er) to get treatment. ...Read more
Open or endo: It can be done with tpa (alteplase) (a high-potency medication to dissolve blood clot) and a rotor-rooter device inserted through a needle stick in the access. I tend to make a small incision to remove the clot with a balloon catheter, then do an angioplasty on the area of stenosis (narrowing) which you usually find in the vein or graft. ...Read moreSee 4 more doctor answers
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