Pulmonary Hypertension for Bariatric Surgery

You are in the preadmission clinic. Your next patient is a 34-year-old female booked for a laparoscopic sleeve gastrectomy to manage her obesity. Her surgery is scheduled in 6 weeks. Medications Ambrisentan 5 mg daily Sildenafil 100 mg three times a day Atenolol 50 mg daily Irbesartan 75 mg daily Escitalopram 30 mg daily Quetiapine 150 mg daily Levothyroxine 100 mcg daily Vital Signs Height 152 cm Weight 127 kg Body Mass Index 55 kg/m2 Blood pressure 135/75 mmHg Heart rate 87 beats per minute SpO2 94% on room air Available investigations: ECG ECHO and RHC Spirometry 6-minute walk test CXR ABG