title: Endoscopic replacement of the amplatz sheath with a larger one, for larger stone fragments extraction.
abstract: We present a technique to replace a 24F with a 30F working sheath during percutaneous renal surgery, for larger stone fragments extraction. To gain time, the 30F sheath is directly glided over the 24F sheath under endoscopic control, without radiation exposure.
authors.affiliation: Department of Urology, Military Hospital Moulay Ismail , Méknes, Morocco. lezrekmohamed@yahoo.com
authors.forename: Mohammed
authors.initials: M
authors.lastname: Lezrek
authors.forename: Abdelghani
authors.initials: A
authors.lastname: Ammani
authors.forename: Khalil
authors.initials: K
authors.lastname: Bazine
authors.forename: Mohammed
authors.initials: M
authors.lastname: Asseban
authors.forename: El Hassan
authors.initials: el H
authors.lastname: Kassmaoui
authors.forename: Amoqran
authors.initials: A
authors.lastname: Beddouch
authors.forename: Abdelmounim
authors.initials: A
authors.lastname: Qarro
authors.forename: Mohammed
authors.initials: M
authors.lastname: Alami
mesh_terms: D004724:Endoscopy; D006801:Humans; D007669:Kidney Calculi / Q000473:pathology* / Q000601:surgery*; D009403:Nephrostomy, Percutaneous / Q000295:instrumentation* / Q000379:methods*