Obstetrics Flashcards
Well managed epidural analgesia benefits
Reduced material and feral acidosis
Increased uteroplacental flow
Reduction in uterine activity
Reduction in incoordinate uterine activity
1st stage labour blockade requires which nerves to be blocked
T10-L1
Second stage labour requires what nerves to be blocked
S234
What is paracervical block and why shouldn’t it be used in labour
Paracervical block is local to the lateral fornix Vagina , blocks paracervical ganglion and provides analgesia to cervix and uterus
Used in gynae procedures
Not used labour as no benefit second stage and can cause profound fatal bradycardia, LAST, Infectuon, and neuropathy
Causes of maternal death 2020
VTE commonest
Cardiac remains high as indirect cause
SUDEP worryingly high - refer anyone with nighttime or uncontrolled seizures
Other causes, sepsis, mental health, haemorrhage
Amniotic fluid embolism presents with
Refecatory hypoxaemia (cyanosis) Pulmonary hypertension Systemic hypotension Petechiae Seizures Foetal distress
PDPH when should follow up happen and for how long
OOA guidance is reviewed within 24 hours then daily, and continue until headache resolves
PDPH conservative treatment
Prolonged bed rest not recommended
Hydration
IV fluids only if oral not possible
PDPH pharmacological management
Simple analgesia
Short term opiods
Caffeine
No evidence for theophylline acth steroids triptans gabapentinoids
PDPH invasive treatments
No evidence for acupuncture occipital nerve blocks etc
Epidural saline may transiently improve ymsoykms
Epidural blood patch - when conservative therapy ineffective ans woman experiences difficulty performing activities of daily life and caring for her baby
EBP timing and steps prior
Less than 48 hours reduction in efficacy
No investigations needed prior but if stays after two or is evolving or neurology need scan
Written consent
Risks of ebp
Repeat Dural puncture
Back pain
Neurological complications
Risks of not performing EBP
Insufficient evidence but suggestion is reduction headache prevention haematoma
What level should EBP be done
Same level or one space lower
20ml
Review within 4 hours procedure
Verbal and written advice and write to GP and midwife
Pathophyisology of PDPH
CSF leak
Reduction in ICO and downward traction on pain sensitive intracranial structures
Cerebral vascular venodilation