TY - JOUR
T1 - Performance of three new-generation pulse oximeters during motion and low perfusion in volunteers
AU - Shah, Nitin
AU - Ragaswamy, Hamsa B.
AU - Govindugari, Kavitha
AU - Estanol, Laverne
N1 - Funding Information:
Financial Support: Supported in part by Masimo Corporation, Irvine, CA, USA, which provided equipment and a grant for the study.
PY - 2012/8
Y1 - 2012/8
N2 - Study Objective: To evaluate pulse oximeter performance during motion and induced low perfusion in volunteers. Design: Prospective volunteer study. Setting: Direct Observation unit. Subjects: 10 healthy adult volunteers. Interventions: Ten volunteers were monitored with three different pulse oximeters while they underwent desaturation to about 75% oxygen saturation (SpO 2) and performed machine-generated (MG) and volunteer-generated (VG) hand movements with the test hand, keeping the control hand stationary. Measurements: SpO 2 and pulse rate readings from the motion (test) and stationary (control) hands were recorded as well as the number of times and the duration that the oximeters connected to the test hands did not report a reading. Sensitivity, specificity, performance index for SpO 2, and pulse rate (PR) were calculated for each pulse oximeter by comparing performance of the test hand with the control hand. Main Results: During both MG and VG motion, the Masimo Radical had higher SpO 2 specificity (93% and 97%) than the Nellcor N-600 (67% and 77%) or the Datex-Ohmeda TruSat (83% and 82%). The Masimo Radical also had higher SpO 2 sensitivity (100% and 95%) than the Nellcor N-600 (65% and 50%) or the Datex-Ohmeda TruSat (20% and 15%) during both MG and VG motion. During MG motion, the Masimo Radical had the lowest PR failure rate (0%) compared with the Nellcor N-600 (22.2%) and Datex-Ohmeda TruSat (1.3%). However, during VG motion, the Masimo Radical had the lowest SpO 2 failure rate (0%) of the three devices (Nellcor N-600 16.4% and Datex-Ohmeda TruSat 1.7%). Both the Masimo Radical and the Datex-Ohmeda TruSat had lower PR failure rates (0% and 4.4%) than the Nellcor N-600 (33.9%). There were no significant differences in SpO 2 or PR performance index between the three devices. Conclusions: The Masimo Radical had higher SpO 2 sensitivity and specificity than the Nellcor N-600 and Datex-Ohmeda TruSat during conditions of motion and induced low perfusion in this volunteer study.
AB - Study Objective: To evaluate pulse oximeter performance during motion and induced low perfusion in volunteers. Design: Prospective volunteer study. Setting: Direct Observation unit. Subjects: 10 healthy adult volunteers. Interventions: Ten volunteers were monitored with three different pulse oximeters while they underwent desaturation to about 75% oxygen saturation (SpO 2) and performed machine-generated (MG) and volunteer-generated (VG) hand movements with the test hand, keeping the control hand stationary. Measurements: SpO 2 and pulse rate readings from the motion (test) and stationary (control) hands were recorded as well as the number of times and the duration that the oximeters connected to the test hands did not report a reading. Sensitivity, specificity, performance index for SpO 2, and pulse rate (PR) were calculated for each pulse oximeter by comparing performance of the test hand with the control hand. Main Results: During both MG and VG motion, the Masimo Radical had higher SpO 2 specificity (93% and 97%) than the Nellcor N-600 (67% and 77%) or the Datex-Ohmeda TruSat (83% and 82%). The Masimo Radical also had higher SpO 2 sensitivity (100% and 95%) than the Nellcor N-600 (65% and 50%) or the Datex-Ohmeda TruSat (20% and 15%) during both MG and VG motion. During MG motion, the Masimo Radical had the lowest PR failure rate (0%) compared with the Nellcor N-600 (22.2%) and Datex-Ohmeda TruSat (1.3%). However, during VG motion, the Masimo Radical had the lowest SpO 2 failure rate (0%) of the three devices (Nellcor N-600 16.4% and Datex-Ohmeda TruSat 1.7%). Both the Masimo Radical and the Datex-Ohmeda TruSat had lower PR failure rates (0% and 4.4%) than the Nellcor N-600 (33.9%). There were no significant differences in SpO 2 or PR performance index between the three devices. Conclusions: The Masimo Radical had higher SpO 2 sensitivity and specificity than the Nellcor N-600 and Datex-Ohmeda TruSat during conditions of motion and induced low perfusion in this volunteer study.
KW - Low perfusion
KW - Motion
KW - Oxygen saturation
KW - Pulse oximeter
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U2 - 10.1016/j.jclinane.2011.10.012
DO - 10.1016/j.jclinane.2011.10.012
M3 - Article
C2 - 22626683
SN - 0952-8180
VL - 24
SP - 385
EP - 391
JO - Journal of Clinical Anesthesia
JF - Journal of Clinical Anesthesia
IS - 5
ER -