TY - JOUR
T1 - A new formula proposal for placing pH-impedance catheters in pediatric patients
JO - Revista de Gastroenterología de México
T2 -
AU - Sempértegui-Cárdenas,P.X.
AU - Toro-Monjaraz,E.M.
AU - Zárate-Mondragón,F.E.
AU - Ignorosa-Arellano,K.
AU - Cadena-León,J.F.
AU - Cervantes-Bustamante,R.
AU - Montijo-Barrios,E.
AU - Ramírez-Mayans,J.A.
SN - 2255534X
M3 - 10.1016/j.rgmxen.2023.08.009
DO - 10.1016/j.rgmxen.2023.08.009
UR - https://www.revistagastroenterologiamexico.org/en-a-new-formula-proposal-for-avance-S2255534X24000471
AB - IntroductionEsophageal pH-impedance monitoring is a tool for diagnosing gastroesophageal reflux in children. The position of the pH catheter is essential for a reliable reading and the current formulas for calculating catheter insertion length are not completely accurate. The aim of the present study was to develop a new formula for adequate insertion of the pH catheter. Material and methodsA cross-sectional study was conducted on children that underwent pH-impedance monitoring and later radiographic control, to calculate the correct catheter insertion length. The documented variables were age, sex, weight, height, naris to tragus distance, tragus to sternal notch distance, sternal notch to xiphoid process distance, and initial insertion length determined by the Strobel and height interval formulas. A multivariate regression analysis was carried out to predict the final insertion length. Regression ANOVA and Pearson’s adjusted R-squared tests were performed. ResultsForty-five pH-impedance studies were carried out, 53% of which were in males. The age and weight variables were not normally distributed. In the initial regression model, the variables that did not significantly correlate with the final insertion length were: sex (P 0.124), length determined by the Strobel or height interval formulas (P 0.078), naris to tragus distance (P 0.905), and tragus to sternal notch distance (P 0.404). The final equation: 5.6 + (height in cm * 0.12) + (sternal notch to xiphoid process distance * 0.57) produced an R2 of 0.93 (P 0.000). ConclusionsThis formula can be considered a valid option for placement of the pH-impedance monitoring catheter in pediatrics.
ER -