Publications by authors named "Dian-Dong Yang"
Background: For patients with prior intra-abdominal surgery or multiple arteries, the retroperitoneal robot-assisted partial nephrectomy (rRAPN) is a better choice. The renal ventral tumor poses an additional challenge due to poor tumor exposure. This study is determined to assess the feasibility of an internal traction technique (ITT) in rRAPN for the management of renal ventral tumors.
View Article and Find Full Text PDFPurpose: Urolithiasis is a rare complication of renal transplantation, and there is limited evidence to guide treatment. Management of stones in the transplanted kidney can be challenging. We present our experience in treating upper urinary tract (UUT) allograft lithiasis using minimally invasive procedures, with the aim of demonstrating their efficacy and safety in renal transplant recipients.
View Article and Find Full Text PDFPurpose: To analyze the safety and clinical outcome of laparoscopic nephroureterectomy (LNUT) for native upper tract urothelial carcinoma (UC) in renal transplant (RT) recipients.
Methods: We conducted a retrospective analysis of 956 RT recipients from January 2003 to December 2010 to evaluate the benefit of LNUT for patients who were diagnosed with de novo UC after renal transplantation.
Results: Women predominated (10/11, 91 %) in the 11 patients with upper tract UC who underwent LNUT.
Renal paratransplant hernia: a surgical complication of kidney transplantation.
Langenbecks Arch Surg
March 2011
Introduction: Renal paratransplant hernia is an uncommon and potentially fatal complication of renal transplantation. In this condition, bowel herniates through a defect in the peritoneum over the transplanted kidney and becomes trapped.
Case Report: Six cases have been reported previously, and we herein report three cases encountered in 668 kidney recipients.
[Outcomes of renal transplantation with donor kidneys with multiple arteries].
Zhonghua Yi Xue Za Zhi
April 2009
Objective: To compare the outcomes of renal transplantation with donor kidneys with multi-branched renal arteries.
Methods: The data about operation time, volume of intra-operational blood loss, postoperative complications, and post-operational renal function status of 251 recipients of donor kidneys with single-branched renal artery (Group A), 12 recipients of donor kidneys with double-branched renal arteries the diameter of one of which was < 2 mm or the estimated blood supply areas of one of which were < 10% (Group B), and 35 recipients of donor kidneys with renal arteries with 2 or more than 2 branches (Group C).
Results: The operation time was (115 +/- 34) min in Group A and was (120 +/- 31) min in Group B, both shorter than that of Group C [(133 +/- 55) min], however, not significantly.
Objective: To study the effect of 70 degrees recumbent position transperitoneal laparoscopy for treatment of upper urinary tract transitional cell carcinoma (TCC).
Methods: From May 2004 to January 2007, 70 degrees recumbent position transperitoneal laparoscopy combined with urethral resectoscope was used to treat 31 cases of upper urinary tract transitional cell carcinoma. At the same time titanium clip to occlude the two extremities of ureter tumor was used, extracting specimen by oblique incision of lower quadrant.
Purpose: To present our experience in laparoscopic radical cystectomy with extracorporeal urinary diversion for treatment of Chinese bladder cancer patients.
Methods: Between January 2003 and November 2005, 41 men and 5 women with organ-confined muscle-invasive transitional cell carcinoma of the bladder underwent laparoscopic radical cystectomy with the Bricker-type urinary diversion. The age range was 36-71 years.
Objective: To explore the technique and efficacy of laparoscopic ureteroplasty in treatment of congenital obstructive megaureter in childhood.
Methods: Three children with congenital obstructive megaureter, all male, aged 7 approximately 24, underwent laparoscopic surgery. The dilated ureter was dissected and cut off near the place connecting the ureter and the bladder by laparoscopy.
Background: Laparoscopic dismembered pyeloplasty with less trauma than open surgery is commonly performed for ureteropelvic junction obstruction despite a longer operating time and a long learning curve. We describe in this paper a new technique, which combines laparoscopic and open procedure in dismembered pyeloplasty, that we have developed in 51 patients and achieved excellent results.
Methods: The surgical procedure can be divided into two steps: laparoscopic dissection of the renal pelvis and proximal ureter transperitoneally; then accomplishing the pyeloplasty through the extended port incision above the ureteropelvic junction as in open surgery.
Objective: To evaluate the efficacy and feasibility of laparoscopic aid in upper urinary reconstructive operation.
Methods: Fifty-eight patients with ureteropelvic junction obstruction, 5 patients with upper ureter polypous, 2 patients with upper ureter stenosis, and 13 patients with upper ureter lithiasis underwent upper urinary reconstructive operation with laparoscopic aid described as follows:an incision 1 cm long was made, a 10 mm trocar and a 30 degrees laparoscope were wt in, the part with lesion was isolated and resected, and then pyeloplasty or end-to-end anastomosis of ureter was performed.
Results: The mean operative time was 33 minutes (25-45 minutes).
[Seventy degrees lateral decubital trans-abdominal laparoscopic adrenal surgery].
Zhonghua Wai Ke Za Zhi
April 2003
Objective: To introduce a new procedure of laparoscopic adrenal surgery.
Methods: Thirty patients with adrenal disease underwent surgery by a 70 degrees lateral decubital trans-abdominal laparoscopic approach, which wa compared with 30 degrees decubital laparoscopic operation in 26 patients.
Results: The procedure is superior to open laparotomy.