Urinary Tract Infection (UTI) in Males
BASICS
BASICS

BASICS
DESCRIPTION
DESCRIPTION
DESCRIPTION
- Cystitis is an infection of the lower urinary tract usually resulting from a single gram-negative enteric bacteria (see also Prostatitis, Pyelonephritis, and Urethritis).
- System(s) affected: renal/urologic
- Synonym(s): urinary tract infection (UTI); cystitis
- In otherwise healthy males aged 15 to 50 years, UTI is uncommon and considered uncomplicated.
- In male newborns, infants, and elderly men, UTI is considered complicated, with associated functional/structural mechanisms.
EPIDEMIOLOGY
EPIDEMIOLOGY
EPIDEMIOLOGY
Incidence
Incidence
Incidence
- Predominant age: increases with age
- Uncommon in men <50 years of age; 6 to 8 infections per 10,000 men aged 21 to 50 years (1)
Prevalence
Prevalence
Prevalence
Lifetime prevalence approximately 14%
ETIOLOGY AND PATHOPHYSIOLOGY
ETIOLOGY AND PATHOPHYSIOLOGY
ETIOLOGY AND PATHOPHYSIOLOGY
- Escherichia coli (majority of infections)
- Klebsiella spp.
- Enterobacter
- Enterococcus
- Proteus
- Citrobacter
- Providencia
- Streptococcus faecalis and Staphylococcus sp.
- Pseudomonas and Morganella (more common in elderly and catheterized patients)
- Pathogenesis—bacterial entry into urinary tract via ascension or bladder instrumentation
Genetics
Genetics
RISK FACTORS
RISK FACTORS
RISK FACTORS
- Age
- Obesity
- History of prior UTI
- Outlet obstruction
- Benign prostatic hypertrophy (BPH)—incidence of 33% of men with UTIs (2)
- Urethral stricture
- Calculi
- Fecal incontinence
- Urinary incontinence
- Recent urologic surgery
- Urinary tract instrumentation/catheterization
- Infection of the prostate/kidney
- Immunocompromised
- Diabetes
- Bladder diverticula
- Neurogenic bladder
- Cognitive impairment
- Institutionalization
- Uncircumcised
- Anal intercourse
- Intercourse with an infected female partner (1)
GENERAL PREVENTION
GENERAL PREVENTION
GENERAL PREVENTION
- Prompt treatment of predisposing factors
- Use a catheter only when necessary; if needed, use aseptic technique and closed system and remove as soon as possible.
- Cranberry products are not recommended for preventing UTI.
COMMONLY ASSOCIATED CONDITIONS
COMMONLY ASSOCIATED CONDITIONS
COMMONLY ASSOCIATED CONDITIONS
- Acute bacterial pyelonephritis
- Chronic bacterial pyelonephritis
- Urethritis
- Prostatitis
- Prostatic hypertrophy
- Prostate cancer
Geriatric Considerations
Bacteriuria is more common among the elderly, usually is transient, and may be related to functional status. Of men >65 years of age, 5–10% have asymptomatic bacteriuria (ASB). If ASB is noted, no treatment is needed (1).Pediatric Considerations
Can be associated with obstruction to normal flow of urine, such as vesicoureteral reflux. Unique diagnostic criteria and evaluation recommendations exist.
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