Resuscitation · 2018
Lower heart rate is associated with good one-year outcome in post-resuscitation patients.
СтатьяНаблюдательное исследованиеНазвание и аннотация: Перевод в очереди
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Oksanen Tuomas, Tiainen Marjaana, Vaahersalo Jukka, Bendel Stepani, Varpula Tero, Skrifvars Markus, Pettilä Ville, Wilkman Erika, FINNRESUSCI Study Group
Аннотация
BACKGROUND: Optimal hemodynamic goals in post-resuscitation patients are not clear. Previous studies have reported an association between lower heart rate and good outcome in patients receiving targeted temperature management (TTM) after out-of-hospital cardiac arrest.
METHODS: We analyzed heart rate (HR) and outcome data of 504 post-resuscitation patients from the prospectively collected database of the FINNRESUSCI study. One-year neurologic outcome was dichotomized by the Cerebral Performance Category (CPC) to good (1-2) or poor (3-5).
RESULTS: Of 504 patients, 40.1% (202/504) had good and 59.9% (302/ 504) had poor one-year neurologic outcome. Patients with good outcome had lower time-weighted mean HR during the first 48 h in the ICU (69.2 bpm [59.2-75.1] vs. 76.6 bpm [65.72-89.6], p < 0.001) and the first 72 h in the ICU (71.2 bpm [65.0-79.0] vs. 77.1 bpm [69.1-90.1, p < 0.001]). The percentage of HR registrations below HR threshold values (60, 80 and 100 bpm) were higher for patients with good neurologic outcome, p < 0.001 for all. Lower time-weighted HR for 0-48 h and 0-72 h, and a higher percentage of HR recordings below threshold values were independently associated with good neurological one-year outcome (p < 0.05 for all). When TTM and non-TTM patients were analyzed separately, HR parameters were independently associated with one-year neurologic outcome only in non-TTM patients.
CONCLUSION: Lower heart rate was independently associated with good neurologic outcome. Whether HR in post-resuscitation patients is a prognostic indicator or an important variable to be targeted by treatment, needs to be assessed in future prospective controlled clinical trials.
METHODS: We analyzed heart rate (HR) and outcome data of 504 post-resuscitation patients from the prospectively collected database of the FINNRESUSCI study. One-year neurologic outcome was dichotomized by the Cerebral Performance Category (CPC) to good (1-2) or poor (3-5).
RESULTS: Of 504 patients, 40.1% (202/504) had good and 59.9% (302/ 504) had poor one-year neurologic outcome. Patients with good outcome had lower time-weighted mean HR during the first 48 h in the ICU (69.2 bpm [59.2-75.1] vs. 76.6 bpm [65.72-89.6], p < 0.001) and the first 72 h in the ICU (71.2 bpm [65.0-79.0] vs. 77.1 bpm [69.1-90.1, p < 0.001]). The percentage of HR registrations below HR threshold values (60, 80 and 100 bpm) were higher for patients with good neurologic outcome, p < 0.001 for all. Lower time-weighted HR for 0-48 h and 0-72 h, and a higher percentage of HR recordings below threshold values were independently associated with good neurological one-year outcome (p < 0.05 for all). When TTM and non-TTM patients were analyzed separately, HR parameters were independently associated with one-year neurologic outcome only in non-TTM patients.
CONCLUSION: Lower heart rate was independently associated with good neurologic outcome. Whether HR in post-resuscitation patients is a prognostic indicator or an important variable to be targeted by treatment, needs to be assessed in future prospective controlled clinical trials.