Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Everyday Cardiac Surgery in Jehovah‘s Witnesses of Typically Advanced Age: Clinical Outcome and Matched Comparison

Version 1 : Received: 5 July 2023 / Approved: 6 July 2023 / Online: 7 July 2023 (09:58:24 CEST)

A peer-reviewed article of this Preprint also exists.

Hartrumpf, M.; Kuehnel, R.-U.; Ostovar, R.; Schroeter, F.; Albes, J.M. Everyday Cardiac Surgery in Jehovah‘s Witnesses of Typically Advanced Age: Clinical Outcome and Matched Comparison. J. Clin. Med. 2023, 12, 5110. Hartrumpf, M.; Kuehnel, R.-U.; Ostovar, R.; Schroeter, F.; Albes, J.M. Everyday Cardiac Surgery in Jehovah‘s Witnesses of Typically Advanced Age: Clinical Outcome and Matched Comparison. J. Clin. Med. 2023, 12, 5110.

Abstract

Background and Objectives: Jehovah's Witnesses (JW) reject the transfusion of blood components based on their religious beliefs even if they are in danger of harm or death. In cardiac surgery, this significantly reduces the margin of safety and leads to ethical conflicts. Informed consent should be carefully documented and the patient's family should be involved. This study aims to compare the postoperative course of JW who underwent major cardiac surgery with a similar population of non-Witnesses (NW). Patients and Methods: Demographic, procedural, and postoperative data of all consecutive JW who underwent cardiac surgery at our institution were obtained from the records. They were compared with a propensity score matched group of NW. Anemic JW were treated with erythropoietin and/or iron as needed. Cardiac surgery was performed by experienced surgeons using median sternotomy and cardiopulmonary bypass. Common blood-sparing techniques were routinely used. Periprocedural morbidity and mortality were statistically evaluated for both groups. Results: 32 JW and 64 NW were part of the matched dataset showing no demographic or procedural differences. EPO was used preoperatively in 34.4% and postoperatively in 15.6% of JW but not in NW. Preoperative hemoglobin levels were similar (JW, 8.09±0.99 mmol/l; NW, 8.18±1.06; p=0.683). JW did not receive any transfusions except for one who revoked, while NW transfusion rates were 2.5±3.1 units for red cells (p<0.001) and 0.3±0.8 for platelets (p=0.018). Postoperative levels differed significantly for hemoglobin (JW, 6.05±1.00 mmol/l; NW, 6.88±0.87; p<0.001), and hematocrit (JW, 0.29±0.04; NW, 0.33±0.04; p<0.001) but not for creatinine. Early mortality was similar (JW, 6.3%; NW, 4.7%; p=0.745). There were more pacemakers and pneumonias in JW, while all other postoperative conditions were not different. Conclusions: Real-world data indicate that Jehovah's Witnesses can safely undergo cardiac surgery provided that patients are preconditioned and treated by experienced surgeons who use blood-saving strategies. Postoperative anemia is observed but does not translate into a worse clinical outcome. This is consistent with other studies.

Keywords

Jehovah’s Witnesses; cardiac surgery; outcome; transfusion; blood

Subject

Medicine and Pharmacology, Surgery

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