Zwolle Risk Score as a Predictor of In-Hospital Mortality in Post Primary Percutaneous Coronary Intervention St-Elevation Myocardial Infarction Patients

Authors

  • Sana Afnanzai Zai Department of Adult Cardiology, Armed Forces Institute of Cardiology/National Institute of Heart Diseases, Rawalpindi/National University of Medical Sciences (NUMS) Pakistan https://orcid.org/0009-0003-3242-5994
  • Ali Nawaz Khan Department of Adult Cardiology, Armed Forces Institute of Cardiology/National Institute of Heart Diseases, Rawalpindi/National University of Medical Sciences (NUMS) Pakistan
  • Ayaz Ahmad Department of Adult Cardiology, Armed Forces Institute of Cardiology/National Institute of Heart Diseases, Rawalpindi/National University of Medical Sciences (NUMS) Pakistan
  • Ali Abbas Department of Adult Cardiology, Armed Forces Institute of Cardiology/National Institute of Heart Diseases, Rawalpindi/National University of Medical Sciences (NUMS) Pakistan
  • Ulfat Ara Department of Adult Cardiology, Armed Forces Institute of Cardiology/National Institute of Heart Diseases, Rawalpindi/National University of Medical Sciences (NUMS) Pakistan
  • Nighat Noor Department of Adult Cardiology, Armed Forces Institute of Cardiology/National Institute of Heart Diseases, Rawalpindi/National University of Medical Sciences (NUMS) Pakistan

DOI:

https://doi.org/10.51253/pafmj.v76iSUPPL-8.14254

Keywords:

In-hospital Mortality, Percutaneous coronary intervention, ST-elevation myocardial infarction, Zwolle Risk Score

Abstract

Objective: To determine the Zwolle Risk Score's (ZRS) prediction accuracy during coronary angiography for clinical outcome in post PCI patients with ST-elevation myocardial infarction keeping in-hospital mortality as primary endpoint.

Study Design: Analytical Cross sectional study.

Place and Duration of Study: Adult Cardiology, Armed Forces Institute of Cardiology (AFIC/NNIHD) Rawalpindi, Pakistan from May to Nov 2025.

Methodology: Four hundred six STEMI patients of both sexes were enrolled, with age between 18 to 80 years using the non-probability consecutive sampling technique. Patients with NSTEMI, unstable angina, history of PCI or CABG, patients with incomplete clinical data were excluded. ZRS was calculated before the coronary angiography and a score >6 categorized as positive predictor of in-hospital mortality. Every patient was followed up by 72 hours to record mortality outcomes. The parameters of the diagnostic accuracy were determined.

Results: out of Four hundred six patients 311(76.6%) participants were men. Mean age was 38.75±13.07 years. We analyzed that 95(23.4%) patients were categorized as high risk on the basis of ZRS score while actual in-hospital mortality was counted as 43(10.6%). The study's sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and overall accuracy were 81.4%, 83.5%, 36.8%, 97.4%, and 83.3%, respectively.

Conclusion: The ZRS has a satisfactory diagnostic accuracy in predicting early in-hospital mortality in patients with STEMI who underwent PPCI, with a high sensitivity and negative predictive value. Its ability to repeatedly rule out the risk of early death makes it a practical tool in first-line triage and overall risk selection ..

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References

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Published

16-07-2026

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How to Cite

1.
Zai SA, Khan AN, Ahmad A, Abbas A, Ara U, Noor N. Zwolle Risk Score as a Predictor of In-Hospital Mortality in Post Primary Percutaneous Coronary Intervention St-Elevation Myocardial Infarction Patients. Pak Armed Forces Med J [Internet]. 2026 Jul. 16 [cited 2026 Aug. 11];76(SUPPL-8):S1319-S1323. Available from: https://www.pafmj.org/PAFMJ/article/view/14254