During her time as Consultant Cardiologist at Tan Tock Seng Hospital, Dr Khoo cared for outpatient and inpatient general cardiology patients. She has performed many coronary angiographies and percutaneous coronary interventions predominantly via the radial approach. Additionally, she has performed many complex percutaneous coronary interventions involving left main stenting, bifurcation stenting and treating calcified coronary arteries with artherectomy and intravascular lithotripsy. She is adept at performing intracoronary physiology assessment of the coronary vasculature as well as utilizing intracoronary imaging with intravascular ultrasound and optical coherence tomography to perform her interventions. She is experienced in performing interventions with both the latest drug-eluting stents and drug-eluting balloons. She is part of the STEMI service that delivers round the clock interventions for acute myocardial infarction patients. She was part of the pioneering team in Singapore that first performed Impella assisted intervention, robotic assisted angioplasty and use of the lighting flash system for the management of pulmonary embolism. Dr Khoo also has an interest in echocardiography having obtained the ASCeXAM Testamur certification in adult echocardiography and is accredited in performing stress echocardiography.