Background: shock index (SI), defined as heart rate divided by systolic blood pressure (mmHg), was originally described by Allgöwer et al. in 1967. SI was developed as a simple tool for the detection of circulatory collapse in hemodynamically unstable patients. Elevated SI has also been shown as a risk factor of in-hospital mortality in patients undergoing PPCI.
Aim and objectives: to evaluate the value of shock index as a predictor for angiographic slow/no reflow in patients with STEMI after primary PCI.
Subjects and methods: This study was conducted at Cardiology department – Egypt Air Hospital. eighty patients were admitted to coronary care unit (CCU) after diagnosis of STEMI and PCI was done within 24 hours from starting of symptoms. CT chest was routinely done to all patients before admission for reveal of COVID-19 virus infection. The study period started from July 2021 till March 2023.
Results: there was a statistically significant difference between the study population regarding comparison of type of STEMI between cases with normal and cases with slow or no reflow, comparison of conventional 2D ECHO after PCI between cases with normal and cases with slow or no reflow, comparison of Shock index between cases with normal and cases with slow or no reflow and the roc curve.
Conclusion: Based on our findings, shock index was significant predictor for slow/no coronary reflow in patients with STEMI after primary PCI and was found to be associated with in hospital morbidity and mortality.