This document discusses various catheterization procedures and techniques. It provides information on straight catheters, Foley catheters, and indications for catheterization. Catheter sizes are detailed using the French scale. Techniques for fixing straight catheters and concerns about balloon migration after procedures are covered. Risks of latex allergies and guidelines to prevent catheter-associated UTIs are summarized. Methods for deflating balloons that do not deflate are also outlined. The uses of ureteric stents and techniques for suprapubic catheter insertion are briefly mentioned.

1. Professor/ Abdellatif Zayed
Graduated 1987
INSTRUMENTS

2. Straight catheter

3. Foley’s catheters

4. •
Diagnostic:
1. Cystourethrography
2. Urodynamic study
3. Measure Residual urine
•
Therapeutics:
1. Relief of urine retention (BPH,…)
2. Clot retention
Indications of catheterizations

5. •
Catheter sizes refer to the outside circumference
•
French (Fr) scale (circumference is in mm)
•
1 Fr=0.33 mm in diameter.
French scale

6. Fixations of strait catheter by plaster strips

7. •
Catheter (18-16F) is usually satisfactory for
adults.
•
Inflating the balloon prematurely may result in
urethral rupture

8. •
Large-caliber catheters are used to evacuate
blood clots
•
Why Large balloons (30 mL)??
•
To decrease the balloon migrating into the
prostatic fossa after TUR_P.
•
Can be used as traction to control hemorrhage

9. •
The standard latex catheter can
result in severe reactions in
patients with latex allergies
•
Silicone varieties are good even if it
is to remain only for few days

10. Catheterizations

11. Catheter associated UTI
Incidence:
•
short term catheterization 10-20%
•
Long term catheterizations 100%
Guideline to prevent catheter associated UTI
•
Only when necessary
•
Condom catheter
•

12. Condom catheter
Elastic adhesive band

13. The bag below the bladder level
Should not touch the floor
In males, the catheter should be secured
above the thigh
Guideline to prevent catheter associated
UTI

14. The balloon may not deflate !!!!!!!

15. 1. Deflating by using torsion

16. 2. Shortening the defective length

17. 3. Transluminal probing and perforation
Probe

18. 4. Percutaneous puncture
U/S guided puncture

19. 5. Transrectal or transvaginal puncture
Transvaginal Transrectal

20. 6. Harpoon technique

21. 7. Rupture by overdistention

22. 8. Chemically induced rupture
Obsolete !!!

23. Ureteric stents

24. Bilateral JJ stents,
Stienstrasse

25. Ureteric stents

26. •
Facilitate internal drainage due to
obstruction from internal or
external ureteral compression
•
To decrease sepsis or obstruction in
the presence of steinstrasse after
ESWL
Double-J catheters

27. 1. For retrograde pyelography
2. Collecting urine for cytology
3. Performing brush biopsies
4. Draining an obstructed kidney
Ureteral catheterization

28. Suprapubic catheter

29. Suprapubic Catheter insertion

30. Cystoscope

31. Flexible ureteroscope

32. Nephroscope

33. Thank you
 01001953318