• dilatation
  • 1. Patients with previous aortic valve surgery or balloon dilatation. (trialregister.nl)
  • 2. A single-channel fixed-wire dilatation balloon catheter/guidewire system in accordance with claim 1 in which said portion of said guidewire is of a reduced diameter relative to a larger diameter portion of said guidewire proximal thereto. (google.com)
  • 3. A single-channel fixed-wire dilatation balloon catheter/guidewire system in accordance with claim 1 in which said shoulder is the distal surface of a flange encircling said portion of said guidewire. (google.com)
  • 4. A single-channel fixed-wire dilatation balloon catheter/guidewire system in accordance with claim 1 in which said proximal end of said inner tubing is located inside said balloon adjacent to the distal end thereof, said inner tubing thereby extending substantially less than the length of said balloon. (google.com)
  • 5. A single-channel fixed-wire dilatation balloon catheter/guidewire system in accordance with claim 1 in which said proximal end of said inner tubing is located at the proximal end of said balloon, said inner tubing thereby extending substantially the length of said balloon. (google.com)
  • 7. A single-channel dilatation catheter/guidewire system in accordance with claim 1 in which said inner tubing contains a fenestration communicating the interior of said balloon with said annular space, thereby permitting escape of air from said balloon and other regions of said catheter into said annular space and out said opening at the distal end of said balloon during charging of said catheter with liquid. (google.com)
  • dilation
  • Bicuspidy of the aortic valve and aneurysmal dilation of the ascending aorta (56 mm in diameter) were noted on TTE. (onlinejacc.org)
  • A bicuspid aortic valve (BAV) is frequently associated with dilation of the proximal aorta, especially in the presence of AR and/or AS (1) . (onlinejacc.org)
  • 6. A single-channel fixed-wire dilation balloon catheter/guidewire system in accordance with claim 1 in which said portion of said guidewire has a diameter of from about 0.005 inch to about 0.010 inch, and said annular space has a width of from about 0.00025 inch to about 0.0025 inch. (google.com)
  • prosthetic
  • 7 , 8 , 9 ] From an infectious disease standpoint, this approach has the distinct advantage of complete extirpation of tissue while avoiding placement of prosthetic material, but severe hepatic congestion, and the need for reoperative valve-replacement has made this approach untenable by some authors. (ispub.com)
  • asymptomatic
  • However, the ACC/AHA guidelines concluded that most asymptomatic patients with severe AS can undergo urgent noncardiac surgery at relatively low risk with careful intraoperative and postoperative management. (wikipedia.org)
  • annular
  • said inner tubing and a portion of said guidewire defining an annular space sufficiently narrow to prevent the passage of a liquid having a viscosity at least as great as that of water during inflation of said balloon with said liquid. (google.com)
  • velocity
  • Results Age was mean 77 (SD 9.6) years and peak aortic jet velocity (Vmax) was 4.1 (0.9) m/s. (bmj.com)
  • pulmonary
  • Therefore, oxygen should not be administered unless pulmonary parenchymal disease or pulmonary edema, causing severe hypoxemia, is present. (medscape.com)
  • left
  • 6 More recently, the increased risk of identifying a bicuspid aortic valve in the parent or sibling of the proband with any form of left heart obstructive lesion was described. (ahajournals.org)
  • significant
  • Significant hemodynamic changes occur during pregnancy, which can lead to decompensation in the setting of severe valvular disease. (acc.org)