Short-Term Atrial Pacing and Hemodynamics After Cardiac Surgery

"At four standardized time points (H0: arrival in the ICU, H6, H12, H24), a transient pacing sequence at 70, 80, and 90 bpm is conducted, with each rate applied for 10 minutes to allow stabilization, followed by recording of the hemodynamic profile and blood pressure, as follows:~* If the patient has a spontaneous rhythm between 50 and 69 bpm, measurements are taken at the spontaneous rate, then at 70 bpm, 80 bpm, and finally 90 bpm~* If the patient has a spontaneous rhythm between 70 and 79 bpm, measurements are taken at the spontaneous rate, then at 80 bpm, and finally at 90 bpm~* If the patient has a spontaneous rhythm between 80 and 89 bpm, measurements are taken at the spontaneous rate, then at 90 bpm~* If the patient has a spontaneous rhythm ≥ 90 bpm, measurements are taken at the spontaneous rate only"

"At H0, H6, H12, and H24, they will undergo transient pacing at 70, 80, and 90 bpm, following the same measurement protocol (10 minutes per rate), followed by recording of the hemodynamic profile and blood pressure, as follows:~* If the patient has a rhythm between 50 and 69 bpm, measurements will be taken at the spontaneous rate, then at 70 bpm, 80 bpm, and finally 90 bpm~* If the patient has a rhythm between 70 and 79 bpm, measurements will be taken at the spontaneous rate, then at 80 bpm, and finally at 90 bpm~* If the patient has a rhythm between 80 and 89 bpm, measurements will be taken at the spontaneous rate, then at 90 bpm~* If the patient has a rhythm ≥ 90 bpm, measurements will be taken at the spontaneous rate only~Outside the pacing periods at different rates, patients in the non-pacing group will remain on their spontaneous sinus rhythm."