Kidney Week

Abstract: SA-PO976

Measurement and Estimation of Kidney Length Using Computed Tomography and Predictor Formulas in Kidney Transplant Donors

Session Information

• Transplantation: Clinical - 3
  October 26, 2024 | Location: Exhibit Hall, Convention Center
  Abstract Time: 10:00 AM - 12:00 PM

Category: Transplantation

• 2102 Transplantation: Clinical

Authors

• Cruz Landino, Moises, Instituto Mexicano del Seguro Social Delegacion Jalisco, Guadalajara, Jalisco, Mexico

Moises Cruz Landino, MD

• Muñoz, Diana Laura, Instituto Mexicano del Seguro Social Delegacion Jalisco, Guadalajara, Jalisco, Mexico

Diana Laura Muñoz

• Banda Lopez, Adriana, Instituto Mexicano del Seguro Social Delegacion Jalisco, Guadalajara, Jalisco, Mexico

Adriana Banda Lopez, MD

• Rojas-Campos, Enrique, Instituto Mexicano del Seguro Social Delegacion Jalisco, Guadalajara, Jalisco, Mexico

Enrique Rojas-Campos, MD

• Parra Guerra, Ricardo, Instituto Mexicano del Seguro Social Delegacion Jalisco, Guadalajara, Jalisco, Mexico

Ricardo Parra Guerra, MD

• Mendoza Cabrera, Salvador, Instituto Mexicano del Seguro Social Delegacion Jalisco, Guadalajara, Jalisco, Mexico

Salvador Mendoza Cabrera, MD

• Evangelista-Carrillo, Luis Alberto, Instituto Mexicano del Seguro Social Delegacion Jalisco, Guadalajara, Jalisco, Mexico

Luis Alberto Evangelista-Carrillo, MD

• Sanchez, Diana Noemi, Instituto Mexicano del Seguro Social Delegacion Jalisco, Guadalajara, Jalisco, Mexico

Diana Noemi Sanchez

• Santisbais Beas, Maria, Instituto Mexicano del Seguro Social Delegacion Jalisco, Guadalajara, Jalisco, Mexico

Maria Santisbais Beas, PhD

Background

Kidney length measurement is fundamental in the diagnosis of chronic kidney disease. The aim of this study is to evaluate the relationship between kidney length measured by computed tomography (CT) and the estimation by three predictive formulas in the Mexican population.

Methods

This was a cross-sectional, analytic study performed in kidney donors who had renal length measured by CT. Age, body height, weight, blood pressure, and serum creatinine concentrations were measured. Based on body height and weight, we calculated kidney length using three distinct formulas. Pearson correlation coefficients were obtained between kidney length measured by CT and the results obtained using the formulas

Results

A total of 212 kidney donors were included. Mean age 39.5 ± 11 years, men 97 (47%), body weight 71.5 ± 6 kg, height 1.65 ± 0.1 m, eGFR 106 ± 12 ml/min. Mean right kidney length: 103 ± 8 mm, left kidney length: 104 ± 8 mm. Right kidney volume 130 ± 33 cm3, left kidney volume 132 ± 34 cm3. Figure 1. There was a significant correlation between CT kidney length, and the estimation by formulas. The strongest correlation significance was observed by using Formula 3 for left kidney (r=.041) and right kidney (r=0.38). Table 1 and Figure 2 resume study findings

Conclusion

The kidney length estimation by formulas show a significant correlation with the measurement by CT. Formula 3 better estimates kidney lenght in Mexican population.

Table 1: Correlation between kidney length by CT and estimation by formulas