Urology Flashcards
What is the pathophysiology of Benign Prostate Hyperplasia?
There is hyperplasia of a different set of cells first- the GLANDULAR EPITHELIAL CELLS and the STROMAL CELLS (connective tissue).
This increases the activity of the 5-ALPHA REDUCTASE enzymes
This enzyme produces high amounts of DIHYDROTESTOSTERONE (DHT) and OESTROGEN
DHT is what acts on ANDROGEN RECEPTORS in the prostate and causes HYPERPLASIA
What zone of the prostate is affected in Benign Prostate Hyperplasia?
The Transition Zone
What are the 4 risk factors for Benign Prostate Hyperplasia?
Being Black, then being White, then being Asian
Diabetes
Obesity
Increasing Age
What are the 3 signs of Benign Prostate Hyperplasia?
Lower UTI Symptoms- hesitancy, terminal dribbling, weak stream, straining or incomplete emptying
Lower abdominal tenderness and palpable bladder- indicates Acute Urinary Retention- Patient requires urgent BLADDER SCAN and URGENT CATHETERISATION
Smooth, Enlarged and Non-tender Prostate in Digital Rectal Examination
What 6 investigations should be conducted if Benign Prostate Hyperplasia is suspected?
Pyuria (indicates infection)
PSA (Prostate-Specific Antigen)- correlates to size of prostate
U&Es- if the obstruction is severe then it could cause renal failure
Transrectal Ultrasound- to estimate the size of the Prostate
Renal Tract Ultrasound- if acute urinary retention is suspected then this is done to check for Hydronephrosis
A flow rate <20
How do you manage Benign Prostate Hyperplasia?
(3 steps if symptoms are bothersome)
Surgery is considered in severe cases (covered in a separate card)
If the symptoms are bothersome- then give ALPHA BLOCKERS like TAMSULOSIN to relax the smooth muscles and 5-ALPHA REDUCTASE INHIBITORS like FINASTERIDE to inhibit the formation of DHT
Then for Second-line, just combine them both
Also give a PHOSPHODIESTERASE-5 INHIBITOR like SILDENAFIL
If the symptoms are not bothersome- treat the constipation, reduce caffeine and fluid intake
What are the 4 side effects of Tamsulosin and 3 side effects of Finasteride, which are given as treatment for Benign Prostate Hyperplasia?
Tamsulosin-
- Postural Hypertension
- Dizziness
- Dry mouth
- Depression
Finasteride-
- Reduced Libido
- Erectile Dysfunction and Reduced Ejaculate Volume
- Gynaecomastia
What are the indications for surgery in Benign Prostate Hyperplasia?
RUSHES
- Recurrent or Refractory Urinary Retention
- Recurrent UTI
- Bladder Stone
- Haematuria (not stopped by medication)
- Elevated Creatinine due to the bladder outflow obstruction
- Symptoms deteriorate despite medical therapy
What are the 3 surgeries considered for Benign Prostate Hyperplasia and the requirements for each one?
TUIP- if Prostate<30
TURP- if Prostate 30-80
Open Prostatectomy- if Prostate >80
What are the two main types of Bladder Cancer (one of them is 90% of the cases)
Transitional Cell Carcinoma (90% of cases)
Squamous Cell Carcinoma
What are the two main types of Transitional Cell Carcinoma (main type of Bladder Cancer)
What are 2 things about each type
Papillary- MAJORITY of the TCC cases
- Superficial cancer with FINGER-LIKE PROJECTIONS
- Often Non-invasive with a Better Prognosis
Flat-
- They lie flat against the bladder
- More prone to Invasion with a Poor Prognosis
What is Squamous Cell Carcinoma (the rare type of Bladder Cancer) associated with?
Chronic Cystitis- secondary to Schistosoma Haematobium
What are the 4 risk factors for Bladder Cancer?
Male
Smoking
Occupational Exposure (3)
- Aromatic Amines (rubber, dye and textile industries)
- Polycyclic Aromatic Hydrocarbons (aluminium, coal and roofing industries)
- Painters and Hairdressers
Risk factors for Squamous Cell Carcinoma
- Schistosoma Haematobium
What are the 6 signs of Bladder Cancer?
PAINLESS Haematuria
Dysuria
Frequency
Weight loss
Anaemia- Pallor if Chronic Bleeding is Present
Palpable Suprapubic Mass
What are the two main referral pathways for Bladder Cancer and the age ranges for each Patwhay?
45 Years Old and Above-
- Unexplained Haematuria Without UTI
- Haematuria that doesn’t go away after treatment of UTI
60 Years Old and Above-
- Unexplained Haematuria and either Dysuria OR a Raised WCC Count
What are the 8 investigations to be ordered if Bladder Cancer is suspected?
Flexible Cystoscopy is conducted to confirm the presence of the Bladder Cancer
CT Urogram- to image the Urinary Tract and visualise the Renal Parenchyma
PET-CT- if the CT is unclear
Haematuria
Assess Bone Profile- Hypercalcaemia and Raised ALP (seen in Bone Metastasis)
Bone Scan- if Bone Metastasis is suspected
LFTs and Coagulation- usually Deranged in Liver Metastasis
CT Abdomen and Pelvis- assesses for distant metastasis for High-Risk Patients or Suspected Muscle-Invasive Disease.
- This is not needed if the Patient is Low-Risk or has no risk of Muscle-Invasion
What are the 3 management pathways for Bladder Cancer (2 steps in each pathway)
If it is superficial and NOT Muscle-invasive-
- Trans-urethral Resection of Bladder Tumor- which is performed through Rigid Cystoscopy under general anaesthetic
- Give a post-operative dose of Mitomycin C
If it is Muscle-Invasive-
- Radical Cystectomy- with Neoadjuvant and Adjuvant Chemotherapy
- Radical Radiotherapy- with Neoadjuvant Chemotherapy
If it is Locally-advanced or Metastatic
- Chemotherapy- Cisplatin-based chemotherapy
- Palliative Treatment- Radiotherapy for bladder symptoms
Which microorganisms cause Epididymo-Orchitis through STI (3) and non-STI (2)?
STI
- Chlamydia trachomatis
- Neisseria gonorrhoea
- Mycoplasma genitalium
Non-STI
- E. Coli
- Proteus Sp.
What ae the 3 risk factors for Epididymo-Orchitis?
STI-related- Multiple Partners, Young, Unprotected Sex
Enteric-related- Elderly, Bladder Outflow Obstruction, Instrumentation of Urinary Tract
Tuberculosis (TB) can cause Epididymo-Orchitis
What are the 5 signs of Epididymo-Orchitis?
Lower UTI Symptoms- Like Dysuria, Hesitancy, Nocturia
Unilateral, Tender, Swollen Testicle
Present Prehn’s sign- relief when lifting the testicle (absent in Testicular Torsion)
Present Cremasteric reflex (absent in Testicular Torsion)
Pyrexia (but may not be present)
What 3 investigations should be ordered if Epididymo-Orchitis is suspected?
Urinalysis (remember Neisseria Gonorrhoea is Gram-Negative)
Nucleic Acid Amplification Test- detect the DNA/ RNA of the causative organism
Swab of urethral secretions- but this is less sensitive that NAAT
What is the first-line management for STI and enteric causes of Epididymo-Orchitis?
STI-
- Ceftriaxone and Doxycycline
Enteric-
- Fluoroquinolones such as Ofloxacin or Ciprofloxacin
What is the most common type of Prostate Cancer and which zone of the Prostate do they usually arise from?
Adenocarcinomas- they arise from the Peripheral Zone of the Prostate
What 2 genes are associated with Prostate Cancer?
BRCA1 and BRCA2
What are the three risk factors for Prostate Cancer?
Increasing Age
Afro-Caribbean Ethnicity
Cadmium Exposure (3)
- Cigarettes
- Battery
- Working in the welding industry
What are the 7 signs of Prostate Cancer?
Common Lower UTI Symptoms (4)
- Frequency
- Hesitancy
- Terminal Dribbling
- Nocturia
Less Common Lower UTI Symptoms (2)
- Haematuria
- Dysuria
Bone Pain (Lumbar Back Pain suggests a Metastatic Disease)
Asymmetrical Hard Nodular Prostate with a Loss of the Median Sulcus
Palpable Lymphadenopathy indicates Metastatic Disease
Urinary Retention (Lower Abdominal Pain and Tenderness, Inability to Urinate and Palpable Bladder)
Weight Loss
What 7 investigations should be ordered if Prostate Cancer is suspected?
Multiparametric MRI (is First Line)- conduct if >2 on the Likert Scale
Gleason Score is used to assess severity (8-10 is severe with low differentiation)
PSA (>2.5)
U&Es to assess for renal failure
Bone Profile- Hypercalcaemia and Raised ALP suggests Bone Metastasis
Bone Scan- if bone metastasis is suspected
Liver Profile to assess for Liver Metastasis
What are the treatment options for Low (3) and High (4) Risk Non-Metastatic Prostate Cancer?
Low-risk= PSA is 10 or lower, Gleason Score is 3+3, Cancer Stage is T1 or T2
Low-Intermediate Risk Non-Metastatic Prostate Cancer-
- Active Surveillance or Observation
- Radical Prostatectomy
- Radical Radiotherapy or Brachytherapy with or without AntiAndrogen Therapy
High Risk Non-Metastatic Prostate Cancer-
- Radical Prostatectomy
- Radical Radiotherapy with AntiAndrogen Therapy
- Radical Radiotherapy with Brachytherapy
- Docetaxel Chemotherapy with AntiAndrogen Therapy
What are the two options for the management of Metastatic Prostate Cancer?
Docetaxel Chemotherapy with AntiAndrogen Therapy
Bilateral Orchidectomy
What are the two types of AntiAndrogen Therapy offered in Prostate Cancer and which one should be offered before the other?
Anti-Androgens-
- Flutamide
LHRH Agonists-
- Goserelin
- Zoladex
Anti-Androgens should be given before LHRH Agonist
What type of carcinoma is Renal Cell Carcinoma and where does this type originate from?
Adenocarcinoma- arises from the Epithelium of the Proximal Convoluted Tubule (HYPERNEPHROMA)