PCNL trajectory: a novel concept to predict success in supine PCNL

香港泌尿外科學會Oral (Free Paper) Session IV - Andrology, Men’s Health and Stone Disease: OP.4-5OBJECTIVE: Supine PCNL confers certain advantages over its prone counterpart but access parameters change with supine positioning. Supine position limits maneuverability of instruments, limiting access to upper and mid-pole stones. We aim to determine predictive factors for success of supine PCNL through road-mapping of ...published_or_final_versionThe 17th Annual Scientific Meeting of the Hong Kong Urological Association, Hong Kong, 6 November 2011. In Program Book, 2011, p. 5

PCNL trajectory to predict success in supine PCNL: a novel concept

This journal suppl. contatin program & abstracts of the 29th World Congress of Endourology & SWL WCE, 2011Session - MP23: PNL 2: abstract no. MP23-13INTRODUCTION: Supine PCNL confers certain advantages over prone. Access parameters change with positioning. Supine position limits maneuverability of instruments, limiting access to upper & mid-pole stones. We aim to determine predictive factors for success of supine PCNL through road-mapping of PCNL trajectory. MATERIAL & METHOD: Consecutive patients undergoing PCNL from July-Dec2010 were recruited. Choice of position was made by surgeon. Tracts were performed under USG & fluoroscopy. Distances and angles were measured intra-operatively with rigid and flexible nephroscope, and correlated with pre-operative imaging. RESULTS 19 patients underwent PCNL(13supine, 6prone) Stone load was comparable in both groups. Overall stone clearance after single PCNL was 74%. Regardless of abdominal thickness and approach, all lower pole and renal pelvic stones were reached with mean excursion of 140 mm in supine & 105 mm in prone position. Mean entry angle was 59 for supine, and 35 for prone. In supine PCNL, the upper pole was reached in 4 of 11 tracts, with mean-excursion of 172mm& entry angle of 33. Similarly, 2 of 11 supine PCNL reached middle pole. Conversely, all prone PCNL tracts reached upper & middle pole with decreased excursion & angle. CONCLUSION: PCNL in prone position can reach renal pelvis and 3 poles via lower pole puncture. PCNL trajectory may be a tool to predict success in supine PCNL by estimating chance of reaching mid & upper pole. Skin to upper pole distance larger than 185mm and entry angle more than 48 degrees decrease chance of upper pole access.published_or_final_versionThe 29th World Congress of Endourology & SWL WCE, Kyoto, Japan, 30 November–3 December 2011. In Journal of Endourology, v. 25 suppl 1, p. A145, abstract no. MP23-1

The relationship between renal stone excursion distance and body build during ESWL

香港泌尿外科學會Oral (Free Paper) Session IV - Andrology, Men’s Health and Stone Disease: OP.4-4AIM: To study the relationship between body build and renal stone excursion distance during ESWL. PATIENTS AND METHODS: 88 consecutive patients with different urinary stones underwent ESWL from Oct 2010 to Feb 2011. Patients with ureteric stone, incomplete data, double-J stent and PCN in-situ were excluded. Stone characteristics including burden, position and excursion at deep inspiration and ...published_or_final_versionThe 17th Annual Scientific Meeting of the Hong Kong Urological Association, Hong Kong, 6 November 2011. In Program Book, 2011, p. 5

Emergency percutaneous nephrostomy in supine position under local anesthesia

Unmoderated Poster Session 1: UP-01.104The 31st Congress of the Société Internationale d'Urologie (SIU2011), Berlin, Germany, 16-20 October 2011

Simultaneous antegrade and retrograde approach for complex upper tract stones in modified supine valdivia position: early experience

This journal supplement is proceedings of the CongressModerated Poster Session 10: Stones - MP-10.14INTRODUCTION AND OBJECTIVE: Management of large impacted proximal ureteric stone remains controversial. Stone free rate for ESWL is decreased in stones > 2cm. URSL to impacted upper ureteric stones causes flushing of stone fragments to the kidney. Percutaneous antegrade ureteroscopy is an acceptable first-line treatment for large impacted upper ureteric stones; in combination with renal stone removal; in failure of retrograde access to the stone. Simultaneous antegrade and retrograde approach theoretically brings about the advantages of both approaches. Our objective is ...The 31st Congress of the Société Internationale d'Urologie (SIU2011), Berlin, Germany, 16-20 October 2011. In Urology, 2011, v. 78 n. 3 suppl., p. S106-S107, abstract no. MP-10.1

Relationship between intra-abdominal adhesions and long-term outcomes of laparoscopic-assisted peritoneal dialysis catheter insertion

This journal supplement is the AUA 2011 Annual Meeting Program AbstractsINTRODUCTION AND OBJECTIVES: Peritoneal dialysis is the main stay of renal replacement method (80%) in our locality. Intraabdominal adhesions are not uncommon complicating peritoneal dialysis catheter insertion. Common causes include previous abdominal surgeries and peritoneal dialysis-related peritonitis. The objective of this study is to ...link_to_OA_fulltextThe 2011 Annual Meeting of the American Urological Association (AUA 2011), Washington, D.C., 14-19 May 2011. In The Journal of Urology, 2011, v. 185 n. 4, suppl., p. e906, abstract no. 226