Retention, Trauma , Catherization and Dialysis Flashcards
Urinary Retention:
the inability to voluntarily void urine
Categories of Urinary Retention:
- Obstructive
- Infectious & Inflammatory
- Pharmacologic
- Neurologic
- Other
Causes of Urinary Retention
Obstructive:
- Benign prostatic hyperplasia
- Strictures
- Bladder calculi
- Faecal Impaction
- Phimosis
- Benign/malignant pelvic masses
Causes of urinary retention obstructive:
Organ prolapse eg: cystocele, rectocele, uterine prolapse
• Pelvic mass – gynaecological malignancy
• Uterine fibroid / ovarian cyst
• Retroverted impacted gravid uterus
• Foreign bodies
Infectious and Inflammatory
Causes:
- Prostatitis
- Prostatic abscess
- Balanitis
- Cystitis
- Acute vulvovaginitis
- Herpes simplex virus
Pharmacologic causes
• Drugs with anticholinergic properties eg: tricylic antidepressants (amitriptyline) • Opioids • Sympathomimetic drugs eg: oral decongestants with Ephedrine ( Sudafed) • NSAIDs • Antiparkinsonian agents (levodopa) • Antipsychotics (chlorpromazine) • Muscle relaxants (Baclofen)
Neurologic cause
AUTONOMIC OR PERIPHERAL NERVE
• Diabetes mellitus, Guillain-Barre syndrome Pernicious anaemia, radical pelvic surgery
CNS
• CVA, MS, Tumour, Parkinson’s disease, concussion
SPINAL CORD
• Haematoma / abscess / tumour, Cauda equine, spina
bifida
Other causes
- Post-op complications
- Pregnancy- associated retention
- Trauma eg: penile fracture or laceration
- detrusor muscle failure
Presentation of acute urinary retention:
- Sudden inability to pass urine
- Suprapubic pain which typically causes spasm
- Patient is acutely distressed
- Often longer history of bladder outflow symptoms
- Bladder is visible, tender and palpable
- Patient is typically male
Chronic Retention of Urine:
- Completely different – maybe painless
- Incomplete emptying
- Large bladder, uraemic,anaemic, fluid overloaded ?
- Large residual volume
- Bladder drainage may cause haematuria
Management can include urethral
catheterisation
• Check for sepsis prior to catheterisation
• Ensure correct catheter selection
• Always use an aseptic procedure
• Never force catheter against resistance
• Never inflate balloon in urethra
• Always record details and residual
volume
Renal trauma
- Renal Trauma
- Ureter Trauma
- Bladder Trauma
- Urethral Trauma
- External Genitalia Trauma
Renal Trauma - mechanism:
- Blunt Trauma (90%)
- MVA, falls
- May cause contusion, laceration, avulsion
- Usually conservative treatment
Renal Trauma - Mechanism:
- Penetrating Trauma (10%)
- “Blast effect” - radiating current of energy
- Adjacent tissue necrosis
- Often are associated injuries
- Selective observation vs operative treatment
Renal Trauma:
Clinical Clues, Signs and Symptoms
- Hematuria **
- Flank Pain**
- Sudden deceleration/fall
- Flank bruising•
- Broken ribs (11th and 12th)
- Lower chest/upper abdomen trauma