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Systemic immune-inflammation index (SII) may be an effective indicator in predicting the left ventricular hypertrophy
Orhan Karayiğit1, Serdar Gökhan Nurkoç2, Muhammet Cihat Çelik3
1Department of Cardiology, Yozgat City Hospital, Yozgat, Turkey. orphan_8_9@hotmail.com.
Insights
The systemic immune-inflammation index (SII) is significantly higher in hypertensive patients with left ventricular hypertrophy (LVH). SII can accurately predict LVH, offering a simple marker for assessing cardiovascular risk.
Area of Science:
- Cardiology
- Immunology
- Hypertension Research
Background:
- Left ventricular hypertrophy (LVH) in hypertensive patients indicates poor prognosis.
- Elevated systemic immune-inflammation index (SII) correlates with increased cardiovascular mortality and morbidity.
Purpose of the Study:
- To investigate the association between SII and LVH in patients with hypertension.
- To determine if SII can serve as a predictive marker for LVH.
Main Methods:
- Study included 150 hypertensive patients, divided into LVH (n=56) and non-LVH (n=94) groups based on LVMI.
- SII calculated as (platelet count × neutrophil count) / lymphocyte count.
- Receiver-operating characteristic (ROC) curve analysis used to assess SII's predictive value for LVH.
Main Results:
- SII values were significantly higher in the LVH group compared to the non-LVH group (p < 0.001).
- Patients with eccentric and concentric hypertrophy showed higher SII levels than those with normal geometry or concentric remodeling.
- An SII cutoff of 869.5 predicted LVH with 82.1% sensitivity and 86.2% specificity (AUC: 0.861).
Conclusions:
- SII is an independent predictor of LVH in hypertensive patients.
- SII is a simple, calculable, and accurate marker for predicting LVH, potentially outperforming NLR and PLR.
Abstract:
The development of left ventricular hypertrophy (LVH) induced by hypertension is considered a poor prognosis for patients. Similarly, high values of the systemic immune-inflammation index (SII) are correlated with high mortality and morbidity in cardiovascular events. Within this context, our study aimed to detect the association of SII with LVH caused by hypertension. The study included 150 patients diagnosed with hypertension in total and evaluated them as two separate groups with regard to left ventricular mass index (LVMI), including 56 patients (37.3%) with LVH and 94 patients (62.6%) with non-LVH. SII was calculated as platelet × neutrophil/lymphocyte counts. The SII values regarding the group with LVH were detected remarkably higher than those of the non-LVH group (p < 0.001). Additionally, the SII levels of patients with eccentric and concentric hypertrophy were detected higher than those of the normal ventricular geometry and concentric remodeling groups. About curve analysis of the receiver-operating characteristic (ROC), SII values above 869.5 predicted LVH with a sensitivity of 82.1% and specificity of 86.2% (AUC: 0.861; 95% CI: 0.792-0.930; p < 0.001). LVH can be predicted independently through the use of SII in patients diagnosed with hypertension, which may be a simple and easily calculable marker for judging LVH. Moreover, SII can serve as an accurate determinant for the prediction of LVH, in comparison to NLR and PLR.
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