Patients with Chronic, Severe Angina Who Cannot Be Revascularized with Either

Patients with chronic, severe angina who cannot be revascularized with either coronary bypass surgery or PCI may be appropriate candidates for laser transmyocardial revascularization (TMR) . Channels are created in the left ventricular wall with laser energy (e.g., CO₂, holmium:yttrium-aluminum-garnet [Ho:YAG]) . What relevant intervention must accompany this procedure?

A) Prep the patient for possible emergency coronary artery bypass.
B) Prepare for insertion of a ventricular assist device.
C) Employ laser safety precautions.
D) Prepare provisions for an endoscopic or robot-assisted approach.