Study design and patients
Retrospect study consecutive 33 cases/patients undergo elective TVCP placed by the first author (Meng L) for scheduled non-cardiac surgery from August 2018 to March 2020. 22 of them have measured cardiac biomarkers values before and after TVCP placement. Analysis of the values changes of the cardiac biomarkers. The Hunan Provincial People’s Hospital Ethics Committee granted study approval (reference number: 2020-07) and waived the usual requirement for informed consent as all data were de-identified and analyzed anonymously.
22 eligible patients had a median age of 66 (50-83) years, and 6 (27%) were women, 13 (59%) from the cancer center, others from hepatobiliary surgery, general surgery, and spine surgery department. None of the patients had history recorded of myocardial infarction, stroke, heart failure, chronic kidney disease, anemia. No remarkable structure abnormality findings in echocardiography. B-type natriuretic peptide (BNP) and hemoglobin were normal. Except for slightly elevated creatinine in 1 case (120.5umol/L), creatinine was normal. Decisions of TVCP were made by surgeons after consultation with cardiologists or/and anesthesiologists. Except for the bradyarrhythmia, patients with low cardiovascular risk, so TVCP were simply placed bedside, rather than catheter lab. TVCP indications and baseline characteristics of patients included in table 1.
Table 1. Baseline characteristics of patients and indication of temporary transvenous pacing.