Front Cover: Currently available heart valve prostheses have no growth potential, requiring children with diseases to endure multiple replacement surgeries. In article number 2300011, David Kalfa, Jeffrey W. Kysar, Richard L. Li and co-workers develop the proof of concept a polymeric valved conduit that can be expanded by transcatheter balloon dilation accommodate patient growth.

BACKGROUND A multicenter study (BREATHE I - Entellus Medical, Inc.) was performed to assess the safety and outcomes of a new, less invasive system that uses direct endoscopic visualization to facilitate balloon dilation of the maxillary sinus ostia and ethmoid infundibulum. General anesthesia was avoided in most subjects to assess feasibility of performing transantral ostial dilatation in an of...

Post-radiation stricture is a rare complication after pelvis irradiation, but must be in the mind of the clinician evaluating a lower gastrointestinal obstruction. Endoscopy has gained an important role in chronic radiation proctitis with several therapeutic options for management of intestinal strictures. The treatment of rectal strictures has been limited to surgery with high morbidity and mo...

Background and study aims  Endoscopic removal of biliary stones has high success rates, ranging between 85 % to 95 %. Nevertheless, some stones may be challenging and different endoscopic methods have evolved. Papillary large balloon dilation after sphincterotomy is a widely used technique with success rates ranging from 68 to 90 % for stones larger than 15 mm. Cholangioscopy allows performing ...

In this issue of Circulation, Zeevi and his colleagues from the Children's Hospital in Boston examine critically the results of surgical or balloon dilation therapy applied to a few neonates with life-threatening aortic stenosis.' Of 16 consecutive neonates from 1978 through 1984 undergoing surgery, there were six early and two late deaths. From 1985 through 1988, balloon dilatation was applied...

In this issue of JACC: Cardiovascular Interventions, Nombella-Franco and the Quebec Heart and Lung Institute (1) report their experience with balloon post-dilation in patients with residual paravalvular aortic regurgitation after transcatheter heart valve (THV) implantation. Paravalvular regurgitation grade 2 was documented by transesophageal echocardiography in approximately one-third of their...

Neovesical-urethral anastomotic stricture is a complication of orthotopic neobladder, with a reported incidence of 2.7% to 8.8%. Strictures of the neovesico-urethral anastomotic site can be treated with regular self-dilation, but high-grade strictures require a surgical procedure involving incision by electrocautery or cold knife. Here we describe a grade III neovesical-urethral anastomotic str...

endourologic pyeloplasty is being a substitute of open pyeloplasty in management of ureteropelvic junction obstruction. this procedure can be done in different manners like balloon dilation, cold knife and electrosurgical endoureterotomy, accucise and lasers.a 47 year old woman referred with history of previous open pyeloplasty. hydronephrosis of right kidney with unremarkable t ½ was found in ...