Search results
Results from the WOW.Com Content Network
The sinotubular junction is the point in the ascending aorta where the aortic sinuses end and the aorta becomes a tubular structure. Size ... the average diameter in ...
The junction of the sinuses with the aorta is called the sinotubular junction. The aortic valve is located posterior to the pulmonary valve and the commissure where the anterior two cusps join together points toward the pulmonary valve.
Aneurysm of the aortic sinus, also known as the sinus of Valsalva, is a rare abnormality of the aorta, the largest artery in the body.The aorta normally has three small pouches that sit directly above the aortic valve (the sinuses of Valsalva), and an aneurysm of one of these sinuses is a thin-walled swelling.
Common features of both techniques of the replacement process are the clamping of the aorta and the use of a length of Dacron tube (also known as an "aortic graft"), typically 5 cm, to constrict the aortic root to the normal diameter, while the patient is cooled to 20°C and placed on life support. The procedure typically takes 4 to 6 hours in ...
The major advantage of stentless valves is that they limit patient–prosthesis mismatch (when the area of the prosthetic valve is too small in relation to the size of the patient, increasing the pressure inside the valve [23]) and can be helpful when dealing with small aortic root. However, stentless valves take more time than stented valves ...
The AV node's normal intrinsic firing rate without stimulation (such as that from the SA node) is 40–60 times/minute. [13] This property is important because loss of the conduction system before the AV node should still result in pacing of the ventricles by the slower pacemaking ability of the AV node.
Get answers to your AOL Mail, login, Desktop Gold, AOL app, password and subscription questions. Find the support options to contact customer care by email, chat, or phone number.
The sapheno-femoral junction is tested by the Valsalva maneuver, with the use of color Doppler being helpful at this stage. [35] The wall thickness of the vein [which?] is significantly increased in venous reflux, being approximately 0.58 mm in venous reflux, compared to up to 0.45 mm normally. [36]