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Table 3 Timing of CA contrasting NSTEMI patients with final diagnosis after the first versus the second cTn control

From: How rapid is rapid? Exemplary results of real-life rapid rule-out troponin timing in troponin-positive acute coronary syndromes without persistent ST-segment elevation in two contrasting German chest pain unit facilities

Time of CA Overall Site I Site II p value
NSTEMI ensured by the 1st control (h)
 Overall 20.5 h (11.6–45.3 h) 22.0 h (12.3–46.5 h) 20.0 h (10.8–43.5 h) 0.55
 Group (a) 22.0 h (11.0–49.8 h) 23.5 h (12.1–51.1 h) 20.0 h (10.0–40.5 h) 0.35
 Group (b) 15.0 h (7.0–53.8 h) NA 15.0 h (7.0–53.8 h) NA
 Group (c) 21.0 h (13.5–35.0 h) 21.0 h (13.0–30.0 h) 21.3 h (15.0–63.9 h) 0.75
NSTEMI ensured by the 2nd control (h)
 Overall 22.3 h (20.5–28.9) 10.0 h; 27.0 h 22.3 h (20.5–28.9 h) Omitted to due remaining small sample size
 Group (a) 20.0 h (15.5–22.0 h) 10.0 h 21.0 h (18.9–38.5 h)
 Group (b) 22.5 h; 31.0 h NA 22.5 h; 31.0 h
 Group (c) 27.0 h
  1. site I centre of maximum care in an urban university setting (University Hospital Münster); site II centre of primary care in a rural regional setting (Arnsberg Medical Center)
  2. subgroups: a–c myocardial infarction without persistent ST-segment elevation (NSTEMI), CA coronary angiography, cTn cardiac troponin
  3. * Statistically significant