You are the consultant in the high-risk obstetric clinic. Your first patient is a 38-year-old woman, G3P2, who is 25 weeks pregnant. She has had two previous lower uterine segment caesarean sections under regional anaesthesia.
Her BMI is 55 kg/m2 (height 174 cm, weight 167 kg). She was diagnosed with severe obstructive sleep apnoea one year ago and has used nocturnal CPAP since with improvement in her symptoms.
Medical History
Mild-moderate pulmonary hypertension
Congestive cardiac failure
Cardiorenal syndrome (GFR 41 mL/min)
Obstructive sleep apnoea on nocturnal CPAP
Medications
Aspirin 100 mg once daily
Spironolactone 50 mg mane
Frusemide 40 mg mane, 20 mg nocte
Labetalol 150 mg TDS
Nifedipine SR 30 mg nocte
Enoxaparin 100 mg SC once daily
Observations
HR 90 bpm
BP 130/80 mmHg
RR 22 breaths per minute
SpO2 96% on room air
She has been referred to your tertiary hospital for management of this pregnancy and planned delivery via repeat lower uterine segment caesarean section