Use of cystourethroscopy to remove an indwelling double‑J ureteral stent 6 years following simultaneous radical sigmoid colon cancer and partial bladder resection: A case report

  • Authors:
    • Yan Gu
    • Jing Zhang
    • Guozeng Wang
  • View Affiliations

  • Published online on: March 24, 2016     https://doi.org/10.3892/etm.2016.3192
  • Pages: 2467-2469
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Abstract

Ureteral stents are widely used to ensure good urinary drainage and to relieve obstruction, pain and infection during urologic procedures. However, long‑term indwelling ureteral stents can cause various complications, such as encrustation, hematuria and infection. Here, the case of an 88‑year‑old man who had undergone simultaneous radical resection of sigmoid colon cancer and partial resection of the bladder 6 years prior is presented. The patient complained of urinary frequency and urgency, dysuria and intermittent fever. A kidney ureter bladder X‑ray examination revealed the presence of an entire coiled double‑J stent with calculi from the kidney to the bladder. A computed tomography scan revealed mild hydronephrosis of the left kidney and one J end of the stent in the bladder. The stent was removed successfully by cystourethroscopy and holmium laser lithotripsy. This report describes the clinical experience of the removal of a long‑term stent by endoscopic manipulation.

Introduction

Ureteral stents are frequently used equipment in urology, and are basic but specially designed hollow tubes that are placed in the ureter. Stents with different diameters or gauges are used in adult patients to fit different sized ureters. Three different types of stents, including artificial polymeric stents, ureteral stents, metallic ureteral stents and degradable ureteral stents, are widely used in urologic procedures (1,2). Ureteral stents, particularly double-J (D-J) stents, are widely used in endourologic procedures to relieve obstruction, pain and infection during urologic procedures (3). These stents should be removed within a safe time frame by endourologic or other auxiliary techniques (4). Keeping a stent in the ureter for a long period of time carries a risk of microorganisms developing a biofilm on the stent surface. Serious complications may arise if a stent is not removed within 3 months, such as encrustation, hematuria and infection (5). Recently, multiple endourological approaches and open surgery have been developed to remove the stents in patients with stent-related complications. An endourological procedure is widely accepted for removing ureteral stents, which is more efficient with less wound complications and shorter recovery times than open surgery (6,7). The present study reports a rare case of a patient with a coiled D-J stent which was not removed for 6 years, which resulted in the development of encrustation and was extracted successfully by cystourethroscopy with holmium laser lithotripsy.

Case report

An 88-year-old man was admitted to the Department of Urology, Pudong New Area Gongli Hospital (Shanghai, China) on 6th May 2006 with complaints of urinary frequency and urgency, dysuria and intermittent fever (maximum temperature, 38.3°C) lasting 1 week. Approximately 6 years prior, the patient had undergone simultaneous radical resection of sigmoid colon cancer and partial resection of the bladder. At that time, a D-J stent (Cook Ireland, Ltd., Limerick, Ireland) was inserted to prevent transient urinary tract obstruction and postoperative flank pain from ureteral edema and blood clots. Informed consent was obtained from the patient to report this case. A follow-up appointment had been arranged, which the patient did not attend. The present study was approved by the ethics committee of Pudong New Area Gongli Hospital.

Physical examination at admission was unremarkable except for a previous surgical scar. Hematological and biochemical investigations (8), including a blood, urinary and renal function test, were also unremarkable, with a white blood cell count of 7.4×109/l (normal, 3.5–9.5×109 cells/l), 72.3% neutrophils (normal, 50–70%) and a serum creatinine level of 147 µmol/l (normal, 41–144 µmol/l). Urinalysis (UF-100 automated urinalysis analyzer; Koehler Instrument Company, Inc., New York, NY USA) (9) revealed pyuria (105 white blood cells/high-powered field). Urine cultures were positive for Enterococcus faecalis (Group D Streptococcus system), Escherichia coli and Aeromonas hydrophila, which were sensitive to penicillin (Suzhou Erye Pharmaceutical Co., Ltd., Suzhou, China) and kanamycin (Zhejiang Shapuaisi Pharmaceutical Co., Ltd., Zhejiang, China). Kidney ureter bladder (KUB) X-ray examination revealed the presence of an entire coiled D-J stent from the kidney to the bladder (Fig. 1). Computed tomography (CT) urography scans demonstrated left hydronephrosis and an encrusted D-J stent with calculi on the vesical coil (Fig. 2).

Following treatment of the urinary tract infection (UTI) with penicillin and kanamycin, cystoscopy (22 FSTORZ; Karl-Storz GmbH & Co., KG, Tittlingen, Germany) was performed with holmium laser lithotripsy (Cohernt Inc., Santa Clara, CA, USA) under spinal anesthesia to remove the D-J stent. However, this procedure failed as the stent was curled at one end and coated with a calcified encrustation in the left ureter. Under an irrigation pressure of 40 cm H2O, an 8/9.5F STORZ ureteroscope (Karl-Storz GmbH & Co., KG) was placed into the bladder. Encrusted stones surrounding the D-J stent, in particular in the upper coil, were disintegrated with 2J/8HZ holmium laser lithotripsy. The D-J stent was removed into the bladder. An intact D-J ureteral stent, which was coated with yellow calculus, was withdrawn from the bladder using a grasper under cystoscopy (Fig. 3). The bladder was washed with saline to clear the stones completely. The whole procedure for D-J stent removal took 45 min.

Postoperatively, the antibiotic regimen was changed to vancomycin (Vianex S.A., Athens, Greece), on the basis of the sensitivity of the bacterial culture of the stones (Staphylococcus haemolyticus). One week later, the patient remained in good health and free of infection. The patient was discharged 14 days after admission to the hospital (20th May 2006). The postoperative period was uneventful, and the patient developed no complications by the end of the 1-month follow-up period.

Discussion

The D-J ureteral stent is one of the most basic and valuable tools used to prevent obstruction of the urinary tract and to maintain its patency following endourological procedures and urologic open surgery (9). The D-J stent enables direct drainage of the upper urinary tract into the bladder without the need for an external diversion (10). Complications of short-term stent placement (3–9 weeks) include flank pain and irrigative voiding symptoms, hematuria, dysuria, frequency, and suprapubic pain (11). Complications may also occur following the long-term placement of stents in patients who do not attend the follow-up. These delayed complications include stenturia and hydronephrosis, encrustation, blockage, impaction, migration, knotting, fracture and spontaneous fragmentation of the stent (12,13). As the use of indwelling ureteral stents has increased, stent-associated infections have become more frequent (14). Bacterial stent colonization by multiple pathogens starts at 2 weeks and is followed by UTI (15). Enterococcus species and E. coli are the main causative pathogens and can spread rapidly (16).

Stent encrustation is common in the use of long-term ureteral stents. Ureteral stents that are left in place for >6 months are commonly encrusted (1719). In the present case, the stent was in situ for 6 years, and the patient developed stone formation, encrustation and UTI. Numerous previous studies have reported various multimodal endourologic approaches to remove encrusted and retained stents, including extracorporal shockware lithotripsy, ureteroscopy with or without intracorporal retrieval, and percutaneous nephrolithotmy (2022). For long-term D-J stents with severe encrustation, ureteroscopy in combination with holmium laser lithotripsy could represent an alternative, minimally invasive treatment option (4). In the present study, cystourethroscopy with holmium laser lithotripsy was used to manage the potentially life-threatening complications by extracting the stent.

When a D-J stent must be used, the patient should be educated about the need for its timely removal, and provided with detailed information about stent removal. Contact information for the patient should be recorded, to avoid unnecessary patient morbidity and potential legal problems. Close patient monitoring could reduce the possibility of leaving a stent in situ. The current study suggested that cystourethroscopy with holmium laser lithotripsy may be an effective and less invasive method for removing encrusted D-J stents that have been in place for a long time.

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Volume 11 Issue 6

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Spandidos Publications style
Gu Y, Zhang J and Wang G: Use of cystourethroscopy to remove an indwelling double‑J ureteral stent 6 years following simultaneous radical sigmoid colon cancer and partial bladder resection: A case report. Exp Ther Med 11: 2467-2469, 2016.
APA
Gu, Y., Zhang, J., & Wang, G. (2016). Use of cystourethroscopy to remove an indwelling double‑J ureteral stent 6 years following simultaneous radical sigmoid colon cancer and partial bladder resection: A case report. Experimental and Therapeutic Medicine, 11, 2467-2469. https://doi.org/10.3892/etm.2016.3192
MLA
Gu, Y., Zhang, J., Wang, G."Use of cystourethroscopy to remove an indwelling double‑J ureteral stent 6 years following simultaneous radical sigmoid colon cancer and partial bladder resection: A case report". Experimental and Therapeutic Medicine 11.6 (2016): 2467-2469.
Chicago
Gu, Y., Zhang, J., Wang, G."Use of cystourethroscopy to remove an indwelling double‑J ureteral stent 6 years following simultaneous radical sigmoid colon cancer and partial bladder resection: A case report". Experimental and Therapeutic Medicine 11, no. 6 (2016): 2467-2469. https://doi.org/10.3892/etm.2016.3192