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The electrified catheter

Role in sterilizing urine and decreasing bacteriuria

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A catheter was designed to decrease the incidence of catheter-induced urinary infections. A randomized, controlled study was performed to assess its safety and efficacy. The study comprised 24 patients subjected to hemorrhoidectomy. The criteria for entry were a preoperative urinary pathogen count below 105 colony-forming units/ml urine as well as postoperative urinary retention that did not respond to conservative measures. The 24 patients were randomly assigned to treatment using a Nelaton catheter in 12 patients and an electrified catheter in the remaining 12. The catheters were left in place for 3 days, during which cephalosporin was given parenterally. The electrified catheter (EC) carried two silver-silver chloride electrodes. During the 3 days of catheterization and for 4 days thereafter, daily urine samples were cultured. The criterion for catheter-induced urinary infection was a pathogen count above 105 colony-forming units/ml urine. No complication was encountered from catheterization. Electrodes were not broken. A bacterial count above 105 colony-forming units was found in 7 of 12 patients in the Nelaton catheter group, and a count below 105 units was determined in the 12 patients in the EC group. The study demonstrated that the EC can decrease the incidence of catheter-induced urinary infections. The EC is safe, cost-effective, and without complications.

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  1. 1.

    Anderson RU (1980) Prophylaxis of bacteriuria during intermittent catheterization of the acute neurogenic bladder. J Urol 123:364–369

  2. 2.

    Becker RO, Spadaro JA (1978) Treatment of orthopedic infections with electrically generated silver ions. A preliminary report. J Bone Joint Surg 60:871–881

  3. 3.

    Bloom S, Gonick P (1969) Urine sterilization in catheter drainage bottles. Invest Urol 6:527–530

  4. 4.

    Davis CP, Wagle N, Anderson MD, Warren MM (1991) Bacterial and fungal killing by iontophoresis with long-lived electrodes. Antimicrob Agents Chemother 35:2131–2136

  5. 5.

    Davis CP, Anderson MD, Hoskins S, Warren MM (1992) Electrode and bacterial survival with iontophoresis in synthetic urine. J Urol 147:1310–1313

  6. 6.

    Dudley MN, Barriere SL (1981) Antimicrobial irrigations in the prevention and treatment of catheter-related urinary tract infections. Am J Hosp Pharm 38:59–65

  7. 7.

    Dupont HL, Spink WW (1969) Infections due to gram-negative organisms: an analysis of 860 patients with bacteremia at the University of Minnesota Medical Center, 1958–1966. Medicine 48:307–332

  8. 8.

    Fincke BG, Friedland G (1976) Prevention and management of infection in the catheterized patient. Urol Clin North Am 3:313–321

  9. 9.

    Garibaldi RA, Burke JP Dickman ML et al (1974) Factors predisposing to bacteriuria during indwelling urethral catheterization. N Engl J Med 291:215–219

  10. 10.

    Kass EH, Finland M (1956) Asymptomatic infections of the urinary tract. Trans Assoc AM Physicians 69:56–59

  11. 11.

    Kunin CM (1987) Detection, prevention, and management of urinary tract infections, 4th edn Lea & Febiger, Philadelphia, p 245

  12. 12.

    Kunin CM (1988) Can we build a better urinary catheter? N Engl J Med 319:365–370

  13. 13.

    Maizels M, Schaeffer AJ (1980) Decreased incidence of bacteriuria associated with periodic instillations of hydrogen peroxide into the urethral catheter drainage bag. J Urol 123:841–845

  14. 14.

    Pareilleux A, Sicard N (1970) Lethal effects of electric current on Escherichia coli. Appl Microbiol 19:421–424

  15. 15.

    Pearman JW (1971) Prevention of urinary tract infection following spinal cord injury. Paraplegia 9:95–104

  16. 16.

    Riemann F, Zimmermann U, Pilwat J (1975) Release and uptake of hemoglobin and ions in red blood cells induced by dielectric breakdown. Biochim Biophys Acta 394:449–462

  17. 17.

    Rosenbeck K, Linder P, Pecht I (1975) Effect of electric field on light-scattering and fluorescence of chromaffin granules. J Membrane Biol 20:1–12

  18. 18.

    Rosenkranz HS, Carr HS (1972) Silver sulfadiazine: effect on the growth and metabolism of bacteria. Antimicrob Agents Chemother 2:367–372

  19. 19.

    Rosenkranz HS, Rosenkranz S (1972) Silver sulfadiazine: interaction with isolated deoxyribonucleic acid. Antimicrob Agents Chemother 2:373–379

  20. 20.

    Sale JH, Hamilton WA (1967) Effect of high electric fields on micro-organisms. I. Killing of bacteria and yeasts. Biochim Biophys Acta 148:781–788

  21. 21.

    Shafik A (in press) The electrified drain. A new device for sterilizing the field of drainage. Int Surg

  22. 22.

    Shortliffe LMD, Stamey TA (1986) Infections of the urinary tract: introduction and general principles. In: Walsh PC, Gittes RF, Perlmutter AD, Stamey TA (eds) Campbell's urology, vol 1. W.B. Saunders, Philadelphia, pp 738–796

  23. 23.

    Spadaro JA, Berger TJ, Barranco SC, Chapin SE, Becker RO (1974) Antibacterial effects of silver electrodes with weak direct current. Antimicrob Agents Chemother 6:637–641

  24. 24.

    Stamey TA, Pfau A (1970) Urinary infections — a selective review of some observations. Calif Med 113:16–35

  25. 25.

    Stamey TA, Govan DE, Palmer JM (1965) The localization and treatment of urinary tract infections: the role of bactericidal urine levels as opposed to serum levels. Medicine 44:1–36

  26. 26.

    Stamm WE (1975) Guidelines for prevention of catheter-associated urinary tract infections. Ann Intern Med 82:386–390

  27. 27.

    Sullivan MN, Sutter VL, Mins MM et al. (1973) Clinical aspects of bacteremia after manipulation of the genitourinary tract. J Infect Dis 127:49–55

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Correspondence to A. Shafik.

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Shafik, A. The electrified catheter. World J Urol 11, 183–185 (1993). https://doi.org/10.1007/BF00211417

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  • Public Health
  • Chloride
  • Catheter
  • Urine Sample
  • Cephalosporin