The document discusses the use of TCMS (trans-catheter myocardial stimulation) in the context of a thoracic pain unit. It aims to present TCMS as a treatment option for patients with refractory angina when conventional or clinical treatment has failed. TCMS involves the non-surgical placement of electrodes in the heart to stimulate the myocardium and improve blood supply to the heart muscle. The document provides an overview of patient selection criteria, procedure details, and expected outcomes of TCMS.