Gynae and Obs - Incontinence, Ectopic Pregnancy, Miscarriages Flashcards
Incontinence - what is urgency, overactive bladder (OAB) incontinence?
Involuntary detrusor muscle bladder contractions
Incontinence - what is stress incontinence?
Sphincter weakness
Detrusor pressure > closing pressure of urethra
Incontinence - what is mixed incontinence?
Both urgency and stress incontinence
Incontinence - what is overflow incontinence?
due to bladder outlet obstruction, such as prostate enlargement
Incontinence - what is contraction of the detrusor muscle controlled by?
Controlled by muscarinic cholinergic receptors
Incontinence - risk factors
Elderly
Females
Childbirth
Family History
Hysterectomy
Incontinence - symptoms of OAB
Urgency
Frequency
Nocturia
‘Key in door’
Enuresis
Incontinence - what brings on symptoms of stress incontinence?
Coughing
Laughing
Heavy lifting
Exercise
Incontinence - what investigations can you do?
- Bladder diaries
- Vaginal exam - rule out pelvic organ prolapse
- Urine dipstick and culture - rule out DM or UTI
- Urodynamic studies
Incontinence - what is the management of urge incontinence (OAB)?
- Bladder retraining
- Bladder stabilising drugs, 1st line are antimuscarinics - OXYBUTYNIN, TOLTERODINE (both immediate release), DARIFENACIN (once daily prep)
- MIRABEGRON (Beta3 agonist) - useful if concern about anticholinergic side effects in frail patients, works by relaxing detrusor and increasing bladder capacity
- Surgery - botox, bypass, bladder drill
Incontinence - why should you not use oxybutynin in elderly, frail patients?
Increased risk of falls
Incontinence - what is the management for stress incontinence?
- Pelvic floor training, 8 contractions, 3 times a day, minimum 3 months
- DULOXETINE
- Surgery - retropubic mid-urethral tape procedures, colposuspension, surgery is aimed at restoring pressure transmission to urethra
Incontinence - (RECAP) what is 1st line treatment for both stress and urge incontinence?
Urge - Bladder retraining
Stress - pelvic floor training
Ectopic Pregnancy - what is it?
Is it the implantation of a fertilised ovum outside of the uterus
Ectopic Pregnancy - risk factors?
Smoking
History of PID
Current IUD
Previous ectopic pregnancy
Ectopic Pregnancy - when so symptoms usually start to occur?
6-8 weeks
If embryo has space to grow, symptoms may present later
Ectopic Pregnancy - what are the symptoms?
Unilateral lower abdo pain
Amenorrhea
Vaginal bleeding
Shoulder tip pain - blood in peritoneum irritates diaphragm, causing shoulder tip pain
D+V
Pelvic pain
Ectopic Pregnancy - what are the investigations?
Serum hCG testing
Transvaginal US
Vital signs
Ectopic Pregnancy - when would you do expectant management and what does expectant management entail?
Expectant management - closely monitor patient over 48h, if B-hCG levels rise again or symptoms manifest -> intervention
You would choose expectant management when:
- Size <35mm
- Unruptured, aymptomatic
- No fetal heartbeat
- Serum B-hCG <1,000IU/L
Ectopic Pregnancy - when would you do medical management and what does medical management entail?
Medical management - Methotrexate
You would do medical management when:
- Size <35mm
- Unruptured
- No fetal heartbeat
- Serum B-hCG <1,500IU/L
Can’t do medical management if there is another intrauterine pregnancy
Ectopic Pregnancy - when would you do surgical management and what does surgical management entail?
Surgical management - salpingectomy, salpingotomy
You do surgical management if:
- Size >35mm
- Can be ruptured
- Pain
- Visible fetal heartbeat
- Serum B-hCG >1,500IU/L
Miscarriage - what is it?
A miscarriage is a loss of pregnancy before 24 weeks gestation
Miscarriage - what are the 6 different types of miscarriages?
Threatened
Complete
Incomplete
Inevitable
Missed (delayed)
Recurrent
Miscarriage - what are the features of a threatened miscarriage?
Painless vaginal bleeding
Typically occurs at 6-9 weeks
Cervical os is CLOSED
Miscarriage - what are the features of a missed (delayed) miscarriage?
Gestational sac contains dead foetus before 20 weeks, but is retained
Light vaginal bleeding/discharge
Pain not usually a feature
Cervical os is CLOSED
Miscarriage - what are the features of an inevitable miscarriage?
Heavy bleeding with clots
Pain
Pregnancy will not continue
Cervical os is OPEN
Miscarriage - what are the features of an incomplete miscarriage?
Products of conception partially expelled
Vaginal bleeding
Pain
Cervical os is OPEN
Miscarriage - what are the features of a complete miscarriage?
When all pregnancy tissue has left uterus
Vaginal bleeding may continue for several days
Cramping pain
Cervical os is CLOSED
Miscarriage - what are recurrent miscarriages?
3 or more consecutive miscarriages
Miscarriage - what are some causes of miscarriages?
Previous miscarriage
PCOS
Abnormality to cervix, uterus, placenta, foetal development
BV infection
Miscarriage - what are some RFs?
Maternal age >30
Paternal age >45
Smoking
Alcohol/Drug abuse
Uncontrolled DM
Uterine surgery
Miscarriage - what is the most common cause of recurrent miscarriages?
Antiphospholipid syndrome
Miscarriage - what is the clinical presentation?
Vaginal bleeding with/without abdo pain
Cervical os big enough to admit 1 finger
Uterine size small for dates
Products of conception being expelled
Miscarriage - what is the gold standard investigation? What other investigation should you do?
Transvaginal US
Serum hCG - exclude ectopic
Miscarriage - what are the three types of management and what do they entail?
Expectant management:
- Waiting for spontaneous miscarriage
- 1ST LINE. involves waiting 7-14 days for miscarriage to complete spontaneously
- Unsuccessful - medical or surgical
Medical management:
- Vaginal Misoprostol - prostaglandin analogue, binds to myometrial cells, cause strong myometrial contractions to expel tissue
- Give antiemetics and pain relief too
Surgical management:
1. Vacuum aspiration (suction curettage)
Miscarriage - expectant management is 1st line in miscarriage treatment, unless one or more of 4 factors are present, what are they?
- Increased risk of bleeding
- Previous adverse events in pregnancy
- Increased risk from effects of haemorrhage
- Evidence of infection