Preoperative Evaluation for Pacemaker-Dependent Patients Undergoing Eyelid Surgery

Initial Assessment and Device Evaluation

• The American College of Cardiology recommends a focused preoperative evaluation for patients with pacemakers requiring general anesthesia for eyelid surgery, including determining device type, pacemaker dependency status, and device function, with device evaluation within 3-6 months before surgery for pacemaker-dependent patients 1, 2
• The American Society of Anesthesiologists (ASA) suggests establishing whether the patient has a cardiac implantable electronic device (CIED) through patient interview, medical records review, available chest x-rays, ECG review, and physical examination (checking for scars, palpating for device) 3, 4
• The ASA recommends defining the type of device by obtaining the manufacturer's identification card, ordering chest x-rays if no other data are available, or referring to supplemental resources (manufacturer's databases, pacemaker clinic records, consultation with a cardiologist) 3, 4

Determining Pacemaker Dependency and Risk Assessment

• The ASA suggests assessing pacemaker dependency through review of verbal history or medical record indicating bradyarrhythmia causing syncope or other symptoms requiring pacemaker implantation 3, 4
• The American College of Cardiology recommends determining whether EMI is likely to occur during eyelid surgery, with a lower risk compared to procedures involving the chest or abdomen since the surgical site is distant from the pacemaker 1, 2, 5

Preoperative Management and Intraoperative Considerations

• The American College of Cardiology recommends considering reprogramming the device to an asynchronous mode (VOO or DOO) before surgery for pacemaker-dependent patients 1, 2, 4
• The ASA suggests advising the surgeon to consider using a bipolar electrocautery system or ultrasonic (harmonic) scalpel to minimize EMI 4
• The American College of Cardiology recommends implementing continuous ECG and pulse monitoring during surgery, as electrocautery may interfere with ECG monitoring 1, 2, 5

Common Pitfalls and Caveats

• The ASA warns that failure to identify pacemaker dependency status can lead to adverse outcomes including asystole 3
• The American College of Cardiology advises that routine use of magnets over ICDs is not recommended as effects vary by manufacturer and model 6