Accuracy of the Apple Watch Oxygen Saturation Measurement in Adults and Children with Congenital Heart Disease

Accuracy of the Apple Watch Oxygen Saturation Measurement in Adults: A Systematic Review

“…The remaining five articles were included [2,[14][15][16][17]. A summary of extracted characteristics is available in Table 2.…”

“…All publications declared that no conflict of interest was present. Two publications declared that no funding for the project had been received [ 2 , 16 ], and one publication declared a grant from the university as a funding source [ 17 ], while the remaining two publications did not mention funding [ 14 , 15 ].…”

“…Littell and colleagues were the only author group that uploaded data to a public repository [ 16 ]. Two of the remaining publications mentioned the data being available from the corresponding author upon reasonable request [ 2 , 17 ], while the others did not mention data availability [ 14 , 15 ].…”

“…Pätz et al evaluated the performance of a 44 mm Apple Watch Series 6 in 508 adults (n=238) and children (n=270) with congenital heart disease [ 14 ]. Patients were instructed to sit or lay down in a comfortable position.…”

“…This applies in particular to the way the watch was worn during testing. The publication by Pätz et al demonstrates that using an appropriate wristband has an impact on the percentage of failed measurements which also poses the question of how much the accuracy of the measurements is affected [ 14 ]. This question also applies to the study by Littell et al, which was the other study that included pediatric patients and the only one that allowed for the watch to be placed on other regions of the body besides the wrist [ 16 ].…”