Our Services SQ CARDIOLOGY SERVICES These services are either provided on-site or in collaboration with affiliated public and private hospitals and radiology services. CARDIAC INVESTIGATIONS ECGExercise (Treadmill) stress echocardiogramTransthoracic echocardiogramCT coronary angiogramCardiac MRI24hr ambulatory BP monitoring24hr and 48hr Holter monitoringCardiac device interrogation PROCEDURES Left and right heart catheterizationPercutaneous PFO/ASD closurePacemaker and defibrillator implantationLoop recorder implantationElectrophysiological studiesCatheter ablationTransesophageal echocardiogramDC Cardioversion