Ghanbari Garekani Maryam, Poopak Amirhossein, Pouraliakbar Hamidreza, Barghi Arash, Omidvar Razieh, Totonchi Ziae
Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran.
Heart Valve Disease Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran.
J Cardiovasc Thorac Res. 2025 Jun 28;17(2):97-101. doi: 10.34172/jcvtr.025.33436. eCollection 2025 Jun.
Accurate positioning of central venous catheter (CVC) tips is essential to minimize complications such as arrhythmias, thrombosis, or cardiac tamponade.
This study evaluated the reliability of the Peres formula, which estimates CVC tip placement based on patient height, within an Iranian population. A cross-sectional analysis of 100 patients undergoing cardiac surgery revealed that the Peres formula often resulted in incorrect CVC positioning, necessitating radiographic confirmation and post-insertion adjustments.
The mean deviation of CVC tip placement from the ideal position near the carina was 5.13±0.78 cm. Correlation analysis highlighted significant associations between the deviation and demographic factors, including height and body mass index (BMI), suggesting the need for population-specific adjustments to the Peres formula.
These findings underscore the importance of tailored approaches to CVC placement to account for anatomical and physiological differences, emphasizing the need for modified guidelines for the Iranian population to enhance safety and accuracy in clinical practice due to the fact that Peres formula is not suitable for Iranian population.
中心静脉导管（CVC）尖端的准确定位对于将心律失常、血栓形成或心脏压塞等并发症降至最低至关重要。
本研究评估了佩雷斯公式在伊朗人群中基于患者身高估计CVC尖端位置的可靠性。对100例接受心脏手术的患者进行的横断面分析显示，佩雷斯公式常常导致CVC定位错误，需要进行影像学确认和插入后调整。
CVC尖端位置与隆突附近理想位置的平均偏差为5.13±0.78厘米。相关性分析突出了偏差与人口统计学因素（包括身高和体重指数（BMI））之间的显著关联，表明需要针对佩雷斯公式进行特定人群的调整。
这些发现强调了采用量身定制的方法进行CVC放置以考虑解剖学和生理学差异的重要性，强调由于佩雷斯公式不适用于伊朗人群，因此需要为伊朗人群制定修改后的指南以提高临床实践中的安全性和准确性。
