Successful management of a resistant renal artery stenosis in a child using a 4 mm cutting balloon catheter.
Percutaneous transluminal renal angioplasty (PTRA) is a well-established method to treat renal artery stenosis (RAS) in children and adults. However, a significant number of stenoses might not be treated by interventional techniques due to the inability to dilate the RAS. Conventional balloon angioplasty with a high-pressure coronary angioplasty balloon at 20 atm was unable to dilate a significant RAS in a 12-year-old child with severe renovascular hypertension (RR 195/125 mm Hg). After using a 4 mm cutting balloon, we achieved wide patency of the renal artery and an instant normalization of blood pressure without further need of antihypertensive therapy. PTRA using the cutting balloon technique may offer an additional therapeutic option for selected patients in whom conventional balloon angioplasty was not able to dilate RAS.
Department of Pediatric Cardiology and Pediatric Intensive Care, Olgahospital Stuttgart, Stuttgart, Germany. n.haas@olgahospital.de
Nikolaus A
NA
Haas
Volker
V
Ocker
Walter
W
Knirsch
Martin
M
Holder
Helmut
H
Lochbuehler
Martin A G
MA
Lewin
Frank
F
Uhlemann
D000800:Angioplasty, Balloon / Q000295:instrumentation / Q000379:methods*; D002648:Child; D005260:Female; D006801:Humans; D011859:Radiography; D012078:Renal Artery Obstruction / Q000000981:diagnostic imaging / Q000628:therapy*