Prognostic impact of blood pressure and heart rate at admission on in-hospital mortality after primary percutaneous intervention for acute myocardial infarction with ST-segment elevation in western Romania
Received 8 May 2017
Accepted for publication 31 July 2017
Published 23 August 2017 Volume 2017:13 Pages 1061—1068
Checked for plagiarism Yes
Review by Single anonymous peer review
Peer reviewer comments 2
Editor who approved publication: Professor Garry Walsh
Diana Aurora Bordejevic,1,* Florina Caruntu,1,* Cristian Mornos,2 Ioan Olariu,2 Lucian Petrescu,2 Mirela Cleopatra Tomescu,1 Ioana Citu,1 Adelina Mavrea,1 Sorin Pescariu2
1Internal Medicine Department, 2Cardiology Department, “Victor Babes” University of Medicine and Pharmacy, Timisoara, Romania
*These authors contributed equally to this work
Background: The purpose of this retrospective study was to evaluate the prognostic impact of systolic blood pressure (SBP) and heart rate (HR) on in-hospital mortality in ST-segment elevation acute myocardial infarction (STEMI) patients, after primary percutaneous intervention (PCI).
Patients and methods: The study included 294 patients admitted for STEMI. They were divided into five groups according to the SBP at admission: group I, <105 mmHg; group II, 105–125 mmHg; group III, 126–140 mmHg; group IV, 141–158 mmHg; and group V, ≥159 mmHg. Increased HR was defined as ≥80 beats per minute (bpm). In-hospital death was defined as all-cause death during admission and classified into cardiac and noncardiac death.
Results: Among the 294 patients admitted for STEMI, 218 (74%) were men. The mean age was 62±17 years. In-hospital mortality rate was 6% (n=18), with 11 (3.7%) deaths having cardiac causes. The highest mortality was registered in group I (n=9, 16%, P=0.018). Compared to the other groups, group I patients were older (P=0.033), more often smokers (P=0.026), and had a history of myocardial infarction (P=0.003), systemic hypertension (P=0.023), diabetes (P=0.041), or chronic kidney disease (P=0.0200). They more often had a HR ≥80 bpm (P=0.028) and a Killip class 3 or 4 at admission (P=0.020). The peak creatine phosphokinase-MB level was significantly higher in this group (P=0.005), while the angiographic findings more often identified as culprit lesions were the right coronary artery (P=0.005), the left main trunk (P=0.040), or a multivessel coronary artery disease (P=0.044). Multivariate analysis showed that group I patients had a significantly higher risk for both all-cause death (P=0.006) and cardiac death (P=0.003). Patients with HR ≥80 bpm also had higher mortality rates (P=0.0272 for general mortality and P=0.0280 for cardiac mortality).
Conclusion: The present study suggests that SBP <105 mmHg and HR ≥80 bpm at admission of STEMI patients are associated with a higher risk of in-hospital death, even after primary PCI.
Keywords: blood pressure, heart rate, STEMI, primary PCI, outcome
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