Yigiter M, Salman AB. Intravesicular catheter knotting: An unusual complication of suprapubic catheterization. Turk J Pediatr 2016; 58: 452-455.Suprapubic catheterization is commonly used to drain urine temporarily from the bladder. Although it is a commonly performed procedure, it is not without complications. Many of these complications related to surgical technique. However, some unpredictable complications are related to the catheter itself. Intravesical catheter knotting is a very rare event and usually has been reported in feeding catheters used as an urethral catheter. We report a case of a suprapubic Cystofix catheter knot, removed by sustained traction. This complication was probably due to an excessive length of catheter having been inserted into the bladder, thus forming redundant loops that increased the risk of bending onto itself.
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1. Ring KS, Hensle TW. Urinary diversion. In: Kelalis PP, King LR, Belman AB, eds. Clinical Pediatric Urology. Philadelphia, PA: WB Saunders; 1992: 865-903.
2. Hadidi AT. Principles of hypospadias surgery. In: Hadidi AT, Azmy AAF, eds. Hypospadias Surgery: An Illustrated Guide. Berlin: Springer; 2004: 99-105.
3. Turner TW. Intravesical catheter knotting: an uncommon complication of urinary catheterization. Pediatr Emerg Care 2004; 20: 115-117.
4. Mayer E, Ankem MK, Hartanto VH, Barone JG. Management of urethral catheter knot in a neonate. Can J Urol 2002; 9: 1649-1650.
5. Raveenthiran V. Spontaneous knotting of urinary catheters: clinical and experimental observations. Urol Int 2006; 77: 317-321.
6. Foster H, Ritchey M, Bloom D. Adventitious knots in urethral catheters: report of 5 cases. J Urol 1992; 148: 1496-1498.
7. Arena B, McGillivray D, Dougherty G. Urethral catheter knotting: be aware and minimize the risk. CJEM 2002; 4: 108-110.
8. Sambrook AJ, Todd A. Untangling of knotted urethral catheters. Pediatr Radiol 2007; 37: 380-383.
9. Sujijantararat P. Intravesical knotting of a feeding tube used as a urinary catheter. J Med Assoc Thai 2007; 90: 1231-1233.
10. Arda IS, Ozyaylali I. An unusual complication of suprapubic catheterization with Cystofix: catheter knotting within the bladder. Int J Urol 2001; 8: 188- 189.
11. Gardikis S, Soultanidis C, Deftereos S, et al. Suprapubic catheter knotting: an unusual complication. Int Urol Nephrol 2004; 36: 537-539.
12. Thorfinn J, Tarpila E. Intravesical self-tying knots in suprapubic catheters: a report of two cases. Scand J Urol Nephrol 2008; 42: 86-87.
13. Farook SA, Kariholu U, Kousidis G, et al. Not to knot a catheter. Case report of the knotting of a suprapubic catheter. TSW Urology 2007; 7: 1004-1006.
14. Villeta M, Vitagliano G, Castillo O. A rare complication associated to a suprapubic cystostomy: catheter knotting. Arch Esp Urol 2007; 60: 95-96.
15. Polychronidis A, Kantartzi K, Touloupidis S, Nikolaidis I, Simopoulos C. A true knot in a suprapubic catheter around a urethral catheter: a rare complication. J Urol 2001; 165(6 Pt 1): 2001.
16. Mir M, Bali B, Hamza W. Spontaneous knotting of suprapubic catheter-A rare complication and a rare cause of retained suprapubic catheter. The Internet Journal of Urology 2012; 9: 1-3
17. Romero Pérez P, Lapuerta Torres FE, Amat Cecilia M, et al. Suprapubic cystostomy catheter knotting. Presentation of the first national case and review of the literature. Arch Esp Urol 2013; 66: 221-230.
18. Ahmed H, Kaufman D, Zenilman ME. A knot in the heart. Am Surg 2008; 74: 235-236.
19. Akhtar MI, Hamid M, Khan FH, et al. Pulmonary artery catheter knotting in a coronary artery bypass surgery patient. J Pak Med Assoc 2007; 57: 519-521.
20. Arnaoutoglou HM, Tzimas PG, Papadopoulos GS. Knotting of an epidural catheter: a rare complication. Acta Anaesthesiol Belg 2007; 58: 55-57.
21. Hatim A, Belyamani L, Drissi M, et al. Knotting catheter in the superior vena cava: rare complication of SwanGanz. Ann Fr Anesth Reanim 2008; 27: 761-762.
22. Anbu AT. Urethral catheter knotting in preterm neonates. Indian Pediatr 2004; 41: 631-632.
23. Carlson D, Mowery BD. Standards to prevent complications of urinary catheterization in children: should and should-knots. J Soc Pediatr Nurs 1997; 2: 37-41.
24. Gnanaraj J, Gnanaraj L. The infant feeding tube: a boon to the rural urologist. Trop Doct 1996; 26: 191.