Complications Related to Cardiac Rhythm Management Device Therapy and Their Financial Implication: A Prospective Single-Center Two-Year Survey

INTRODUCTION: Cardiac rhythm management devices (CRMDs) have proven their clinical effectiveness for patients with heart rhythm disorders. Little is known about safety and complication rates during the implantation of these devices. This study demonstrated the complication rates related to CRMD implantation, and estimated the additional hospital stay and cost associated with the management of complications. METHODS: During a period of one year, a total of 464 consecutive recipients underwent CRMD implantation and were followed for 2 years. Finally, data were analyzed for 398 patients who completed the two-year follow up, resulting in a total of 796 patient-years. RESULTS: Of the 201 patients with initial pacemaker (PM) implantations, 6 (2.99%) had seven complications (5 patients had lead dislodgement, 1 of them twice), and 1 patient developed pocket infection. Of the 117 PM replacements, 1 (0.85%) patient developed a complication (pocket erosion). Two patients with complications (1 with an initial PM and 1 with a replacement) died before completing the follow up for reasons unrelated to cardiac causes. There were no complications in either initial implantations (69 patients) or replacements (11 patients) of implantable cardioverter-defibrillators. The average prolongation of the hospital stay was 7 days, ranging from 1 to 35 days, resulting in 17,411 of total additional direct hospital costs. CONCLUSION: This study found relatively low rates of complications in patients undergoing CRMD implantation, initial or replacement, in our center, compared with other studies. The additional hospitalization days and costs attributable to these complications depend on the nature of the complication.