THE ARTERIAL STIFFNESS AS RISK FACTOR FOR THE OCCURRENCE OF ARTERIAL HYPERTENSION IN POSTOPERATIVE CRITICALLY ILL PATIENTS

Abstract

Objective: The aim of the present study is to investigate the predictive value of arterial stiffness in the occurrence of arterial hypertension in critically ill patients. Also, the study investigates the risk factors of arterial hypertension in ICU patients. Design and method: This is a prospective observational study. The study included postoperative patients who were admitted to the ICU. We collected demographic characteristics of the patients, their clinical characteristics (i.e. hemodynamic status), clinical severity (APACHE II, SOFA score), lifestyle data (i.e. smoking, alcohol, drugs), and medical history (diabetes mellitus, cardiovascular diseases). Arterial stiffness assessment is performed by recording and analyzing the pulse wave in postoperative patients during the first 24 hours of admission to the ICU. The Sphygmocor software was used for pulse wave analysis and IBM SPSS v.27.0 software was used for statistical analysis. Results: The sample of the study consisted of 74 patients. Most of them were males (70.3%) aged 59.3±18.6 yrs and the rest were females (29.7%) aged 63.3±16.9 yrs. Totally, 54.1% of patients had emergency surgery, 60.8% survived and discharged from ICU, 52.7% had arterial hypertension, 70.3% had diabetes mellitus, 58.1% were smoking, and 63.5% had hypercholesterolemia. The APACHE II score of patients was found 21.2±7.2 and the SOFA score 7.5±2.8 The value of peripheral systolic blood pressure (PSBP) was 138.7±19.4 mmHg, peripheral diastolic blood pressure (PDBP) was 67.1±13.2 mmHg, mean peripheral blood pressure (MPBP) was 90.7±14.6 mmHg, pulse pressure (PP) was 53.1±15.3 mmHg and AIX@75 was 22.3±13.1%. Older patients (69.1±14.9 vs. 52.7±17.3, p=0.001), patients with diabetes mellitus (92.3% vs. 7.7%, p=0.001), patients with hypercholesterolemia (92.3% vs. 7.7%, p=0.001), patients with higher value of Albumin (2.9±0.5 vs. 2.5±0.6, p=0.025), and patients with a higher value of AIX@75 (26.8±10.5 vs. 18.3±14.1, p=0.004) had statistically significant higher percentages of arterial hypertension. Higher AIX values are associated with a greater likelihood of arterial hypertension (OR: 1.027; 95%CI: 1.004-1.049, p=0.018). Conclusions: The arterial stiffness is an independent risk factor for arterial hypertension in postoperative critically ill patients.