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Updated: Jun 30, 2026

Measurement of Tissue Oxygenation Using Near-Infrared Spectroscopy in Patients Undergoing Hemodialysis
Published on: October 2, 2020
Kidney transplantation improves sleep-related breathing in hemodialysis patients
Bernabé Jurado-Gámez1, Alejandro Martin-Malo, Alberto Rodriguez-Benot
1Department of Pneumology, Reina Sofía University Hospital, Córdoba, Spain. bjg01co@hotmail.com
Aims:
To assess whether kidney transplantation improves sleep-related breathing disorders associated with hemodialysis.
Methods:
A prospective study was carried out using full-night polysomnography. Nine hemodialysis patients (7 men and 2 women, aged 42 +/- 16.2 years, BMI 26 +/- 3.7) who later received a successful kidney transplantation were evaluated. Main sleep quality and respiratory variables were recorded: number of dips in oxygen saturation (SaO(2)) > or =3% per hour of sleep; percentage of sleep time with SaO(2) <90%; percentage of sleep time in apnea and hypopnea, and sleep apnea/hypopnea index (AHI).
Results:
After kidney transplantation, the AHI improved in 8 of the 9 patients (10 +/- 10.7 vs. 4.9 +/- 6.1, p = 0.029). A decrease in the percentage of sleep time in apnea/hypopnea (5 +/- 6.8 vs. 0.7 +/- 1.1%, p = 0.008) and a reduction in the number of desaturations (25 +/- 26 vs. 12 +/- 11.2%, p = 0.010) were observed.
Conclusions:
Kidney transplantation improved respiratory events and nocturnal SaO(2) in hemodialysis patients.
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