Efficacy Study

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Stuart F Quan - One of the best experts on this subject based on the ideXlab platform.

  • effects of continuous positive airway pressure on neurocognitive function in obstructive sleep apnea patients the apnea positive pressure long term Efficacy Study apples
    Sleep, 2012
    Co-Authors: Clete A Kushida, Deborah A Nichols, Tyson H Holmes, Stuart F Quan, James K Walsh, Daniel J Gottlieb, Richard D Simon, Christian Guilleminault
    Abstract:

    Study objective To determine the neurocognitive effects of continuous positive airway pressure (CPAP) therapy on patients with obstructive sleep apnea (OSA). Design, setting, and participants The Apnea Positive Pressure Long-term Efficacy Study (APPLES) was a 6-month, randomized, double-blind, 2-arm, sham-controlled, multicenter trial conducted at 5 U.S. university, hospital, or private practices. Of 1,516 participants enrolled, 1,105 were randomized, and 1,098 participants diagnosed with OSA contributed to the analysis of the primary outcome measures. Intervention Active or sham CPAP MEASUREMENTS: THREE NEUROCOGNITIVE VARIABLES, EACH REPRESENTING A NEUROCOGNITIVE DOMAIN: Pathfinder Number Test-Total Time (attention and psychomotor function [A/P]), Buschke Selective Reminding Test-Sum Recall (learning and memory [L/M]), and Sustained Working Memory Test-Overall Mid-Day Score (executive and frontal-lobe function [E/F]) Results The primary neurocognitive analyses showed a difference between groups for only the E/F variable at the 2 month CPAP visit, but no difference at the 6 month CPAP visit or for the A/P or L/M variables at either the 2 or 6 month visits. When stratified by measures of OSA severity (AHI or oxygen saturation parameters), the primary E/F variable and one secondary E/F neurocognitive variable revealed transient differences between Study arms for those with the most severe OSA. Participants in the active CPAP group had a significantly greater ability to remain awake whether measured subjectively by the Epworth Sleepiness Scale or objectively by the maintenance of wakefulness test. Conclusions CPAP treatment improved both subjectively and objectively measured sleepiness, especially in individuals with severe OSA (AHI > 30). CPAP use resulted in mild, transient improvement in the most sensitive measures of executive and frontal-lobe function for those with severe disease, which suggests the existence of a complex OSA-neurocognitive relationship. Clinical trial information Registered at clinicaltrials.gov. Identifier: NCT00051363. Citation Kushida CA; Nichols DA; Holmes TH; Quan SF; Walsh JK; Gottlieb DJ; Simon RD; Guilleminault C; White DP; Goodwin JL; Schweitzer PK; Leary EB; Hyde PR; Hirshkowitz M; Green S; McEvoy LK; Chan C; Gevins A; Kay GG; Bloch DA; Crabtree T; Demen WC. Effects of continuous positive airway pressure on neurocognitive function in obstructive sleep apnea patients: the Apnea Positive Pressure Long-term Efficacy Study (APPLES). SLEEP 2012;35(12):1593-1602.

  • the association between obstructive sleep apnea and neurocognitive performance the apnea positive pressure long term Efficacy Study apples
    Sleep, 2011
    Co-Authors: Christian Guilleminault, Stuart F Quan, Daniel J Gottlieb, Cynthia S Chan, William C Dement, Alan Gevins, James L Goodwin, Sylvan B Green, Max Hirshkowitz
    Abstract:

    Study objectives To determine associations between obstructive sleep apnea (OSA) and neurocognitive performance in a large cohort of adults. Study design Cross-sectional analyses of polysomnographic and neurocognitive data from 1204 adult participants with a clinical diagnosis of obstructive sleep apnea (OSA) in the Apnea Positive Pressure Long-term Efficacy Study (APPLES), assessed at baseline before randomization to either continuous positive airway pressure (CPAP) or sham CPAP. Measurements Sleep and respiratory indices obtained by laboratory polysomnography and several measures of neurocognitive performance. Results Weak correlations were found for both the apnea hypopnea index (AHI) and several indices of oxygen desaturation and neurocognitive performance in unadjusted analyses. After adjustment for level of education, ethnicity, and gender, there was no association between the AHI and neurocognitive performance. However, severity of oxygen desaturation was weakly associated with worse neurocognitive performance on some measures of intelligence, attention, and processing speed. Conclusions The impact of OSA on neurocognitive performance is small for many individuals with this condition and is most related to the severity of hypoxemia.

Christian Guilleminault - One of the best experts on this subject based on the ideXlab platform.

  • effects of continuous positive airway pressure on neurocognitive function in obstructive sleep apnea patients the apnea positive pressure long term Efficacy Study apples
    Sleep, 2012
    Co-Authors: Clete A Kushida, Deborah A Nichols, Tyson H Holmes, Stuart F Quan, James K Walsh, Daniel J Gottlieb, Richard D Simon, Christian Guilleminault
    Abstract:

    Study objective To determine the neurocognitive effects of continuous positive airway pressure (CPAP) therapy on patients with obstructive sleep apnea (OSA). Design, setting, and participants The Apnea Positive Pressure Long-term Efficacy Study (APPLES) was a 6-month, randomized, double-blind, 2-arm, sham-controlled, multicenter trial conducted at 5 U.S. university, hospital, or private practices. Of 1,516 participants enrolled, 1,105 were randomized, and 1,098 participants diagnosed with OSA contributed to the analysis of the primary outcome measures. Intervention Active or sham CPAP MEASUREMENTS: THREE NEUROCOGNITIVE VARIABLES, EACH REPRESENTING A NEUROCOGNITIVE DOMAIN: Pathfinder Number Test-Total Time (attention and psychomotor function [A/P]), Buschke Selective Reminding Test-Sum Recall (learning and memory [L/M]), and Sustained Working Memory Test-Overall Mid-Day Score (executive and frontal-lobe function [E/F]) Results The primary neurocognitive analyses showed a difference between groups for only the E/F variable at the 2 month CPAP visit, but no difference at the 6 month CPAP visit or for the A/P or L/M variables at either the 2 or 6 month visits. When stratified by measures of OSA severity (AHI or oxygen saturation parameters), the primary E/F variable and one secondary E/F neurocognitive variable revealed transient differences between Study arms for those with the most severe OSA. Participants in the active CPAP group had a significantly greater ability to remain awake whether measured subjectively by the Epworth Sleepiness Scale or objectively by the maintenance of wakefulness test. Conclusions CPAP treatment improved both subjectively and objectively measured sleepiness, especially in individuals with severe OSA (AHI > 30). CPAP use resulted in mild, transient improvement in the most sensitive measures of executive and frontal-lobe function for those with severe disease, which suggests the existence of a complex OSA-neurocognitive relationship. Clinical trial information Registered at clinicaltrials.gov. Identifier: NCT00051363. Citation Kushida CA; Nichols DA; Holmes TH; Quan SF; Walsh JK; Gottlieb DJ; Simon RD; Guilleminault C; White DP; Goodwin JL; Schweitzer PK; Leary EB; Hyde PR; Hirshkowitz M; Green S; McEvoy LK; Chan C; Gevins A; Kay GG; Bloch DA; Crabtree T; Demen WC. Effects of continuous positive airway pressure on neurocognitive function in obstructive sleep apnea patients: the Apnea Positive Pressure Long-term Efficacy Study (APPLES). SLEEP 2012;35(12):1593-1602.

  • the association between obstructive sleep apnea and neurocognitive performance the apnea positive pressure long term Efficacy Study apples
    Sleep, 2011
    Co-Authors: Christian Guilleminault, Stuart F Quan, Daniel J Gottlieb, Cynthia S Chan, William C Dement, Alan Gevins, James L Goodwin, Sylvan B Green, Max Hirshkowitz
    Abstract:

    Study objectives To determine associations between obstructive sleep apnea (OSA) and neurocognitive performance in a large cohort of adults. Study design Cross-sectional analyses of polysomnographic and neurocognitive data from 1204 adult participants with a clinical diagnosis of obstructive sleep apnea (OSA) in the Apnea Positive Pressure Long-term Efficacy Study (APPLES), assessed at baseline before randomization to either continuous positive airway pressure (CPAP) or sham CPAP. Measurements Sleep and respiratory indices obtained by laboratory polysomnography and several measures of neurocognitive performance. Results Weak correlations were found for both the apnea hypopnea index (AHI) and several indices of oxygen desaturation and neurocognitive performance in unadjusted analyses. After adjustment for level of education, ethnicity, and gender, there was no association between the AHI and neurocognitive performance. However, severity of oxygen desaturation was weakly associated with worse neurocognitive performance on some measures of intelligence, attention, and processing speed. Conclusions The impact of OSA on neurocognitive performance is small for many individuals with this condition and is most related to the severity of hypoxemia.

Daniel J Gottlieb - One of the best experts on this subject based on the ideXlab platform.

  • effects of continuous positive airway pressure on neurocognitive function in obstructive sleep apnea patients the apnea positive pressure long term Efficacy Study apples
    Sleep, 2012
    Co-Authors: Clete A Kushida, Deborah A Nichols, Tyson H Holmes, Stuart F Quan, James K Walsh, Daniel J Gottlieb, Richard D Simon, Christian Guilleminault
    Abstract:

    Study objective To determine the neurocognitive effects of continuous positive airway pressure (CPAP) therapy on patients with obstructive sleep apnea (OSA). Design, setting, and participants The Apnea Positive Pressure Long-term Efficacy Study (APPLES) was a 6-month, randomized, double-blind, 2-arm, sham-controlled, multicenter trial conducted at 5 U.S. university, hospital, or private practices. Of 1,516 participants enrolled, 1,105 were randomized, and 1,098 participants diagnosed with OSA contributed to the analysis of the primary outcome measures. Intervention Active or sham CPAP MEASUREMENTS: THREE NEUROCOGNITIVE VARIABLES, EACH REPRESENTING A NEUROCOGNITIVE DOMAIN: Pathfinder Number Test-Total Time (attention and psychomotor function [A/P]), Buschke Selective Reminding Test-Sum Recall (learning and memory [L/M]), and Sustained Working Memory Test-Overall Mid-Day Score (executive and frontal-lobe function [E/F]) Results The primary neurocognitive analyses showed a difference between groups for only the E/F variable at the 2 month CPAP visit, but no difference at the 6 month CPAP visit or for the A/P or L/M variables at either the 2 or 6 month visits. When stratified by measures of OSA severity (AHI or oxygen saturation parameters), the primary E/F variable and one secondary E/F neurocognitive variable revealed transient differences between Study arms for those with the most severe OSA. Participants in the active CPAP group had a significantly greater ability to remain awake whether measured subjectively by the Epworth Sleepiness Scale or objectively by the maintenance of wakefulness test. Conclusions CPAP treatment improved both subjectively and objectively measured sleepiness, especially in individuals with severe OSA (AHI > 30). CPAP use resulted in mild, transient improvement in the most sensitive measures of executive and frontal-lobe function for those with severe disease, which suggests the existence of a complex OSA-neurocognitive relationship. Clinical trial information Registered at clinicaltrials.gov. Identifier: NCT00051363. Citation Kushida CA; Nichols DA; Holmes TH; Quan SF; Walsh JK; Gottlieb DJ; Simon RD; Guilleminault C; White DP; Goodwin JL; Schweitzer PK; Leary EB; Hyde PR; Hirshkowitz M; Green S; McEvoy LK; Chan C; Gevins A; Kay GG; Bloch DA; Crabtree T; Demen WC. Effects of continuous positive airway pressure on neurocognitive function in obstructive sleep apnea patients: the Apnea Positive Pressure Long-term Efficacy Study (APPLES). SLEEP 2012;35(12):1593-1602.

  • the association between obstructive sleep apnea and neurocognitive performance the apnea positive pressure long term Efficacy Study apples
    Sleep, 2011
    Co-Authors: Christian Guilleminault, Stuart F Quan, Daniel J Gottlieb, Cynthia S Chan, William C Dement, Alan Gevins, James L Goodwin, Sylvan B Green, Max Hirshkowitz
    Abstract:

    Study objectives To determine associations between obstructive sleep apnea (OSA) and neurocognitive performance in a large cohort of adults. Study design Cross-sectional analyses of polysomnographic and neurocognitive data from 1204 adult participants with a clinical diagnosis of obstructive sleep apnea (OSA) in the Apnea Positive Pressure Long-term Efficacy Study (APPLES), assessed at baseline before randomization to either continuous positive airway pressure (CPAP) or sham CPAP. Measurements Sleep and respiratory indices obtained by laboratory polysomnography and several measures of neurocognitive performance. Results Weak correlations were found for both the apnea hypopnea index (AHI) and several indices of oxygen desaturation and neurocognitive performance in unadjusted analyses. After adjustment for level of education, ethnicity, and gender, there was no association between the AHI and neurocognitive performance. However, severity of oxygen desaturation was weakly associated with worse neurocognitive performance on some measures of intelligence, attention, and processing speed. Conclusions The impact of OSA on neurocognitive performance is small for many individuals with this condition and is most related to the severity of hypoxemia.

Max Hirshkowitz - One of the best experts on this subject based on the ideXlab platform.

  • the association between obstructive sleep apnea and neurocognitive performance the apnea positive pressure long term Efficacy Study apples
    Sleep, 2011
    Co-Authors: Christian Guilleminault, Stuart F Quan, Daniel J Gottlieb, Cynthia S Chan, William C Dement, Alan Gevins, James L Goodwin, Sylvan B Green, Max Hirshkowitz
    Abstract:

    Study objectives To determine associations between obstructive sleep apnea (OSA) and neurocognitive performance in a large cohort of adults. Study design Cross-sectional analyses of polysomnographic and neurocognitive data from 1204 adult participants with a clinical diagnosis of obstructive sleep apnea (OSA) in the Apnea Positive Pressure Long-term Efficacy Study (APPLES), assessed at baseline before randomization to either continuous positive airway pressure (CPAP) or sham CPAP. Measurements Sleep and respiratory indices obtained by laboratory polysomnography and several measures of neurocognitive performance. Results Weak correlations were found for both the apnea hypopnea index (AHI) and several indices of oxygen desaturation and neurocognitive performance in unadjusted analyses. After adjustment for level of education, ethnicity, and gender, there was no association between the AHI and neurocognitive performance. However, severity of oxygen desaturation was weakly associated with worse neurocognitive performance on some measures of intelligence, attention, and processing speed. Conclusions The impact of OSA on neurocognitive performance is small for many individuals with this condition and is most related to the severity of hypoxemia.

Clete A Kushida - One of the best experts on this subject based on the ideXlab platform.

  • effects of continuous positive airway pressure on neurocognitive function in obstructive sleep apnea patients the apnea positive pressure long term Efficacy Study apples
    Sleep, 2012
    Co-Authors: Clete A Kushida, Deborah A Nichols, Tyson H Holmes, Stuart F Quan, James K Walsh, Daniel J Gottlieb, Richard D Simon, Christian Guilleminault
    Abstract:

    Study objective To determine the neurocognitive effects of continuous positive airway pressure (CPAP) therapy on patients with obstructive sleep apnea (OSA). Design, setting, and participants The Apnea Positive Pressure Long-term Efficacy Study (APPLES) was a 6-month, randomized, double-blind, 2-arm, sham-controlled, multicenter trial conducted at 5 U.S. university, hospital, or private practices. Of 1,516 participants enrolled, 1,105 were randomized, and 1,098 participants diagnosed with OSA contributed to the analysis of the primary outcome measures. Intervention Active or sham CPAP MEASUREMENTS: THREE NEUROCOGNITIVE VARIABLES, EACH REPRESENTING A NEUROCOGNITIVE DOMAIN: Pathfinder Number Test-Total Time (attention and psychomotor function [A/P]), Buschke Selective Reminding Test-Sum Recall (learning and memory [L/M]), and Sustained Working Memory Test-Overall Mid-Day Score (executive and frontal-lobe function [E/F]) Results The primary neurocognitive analyses showed a difference between groups for only the E/F variable at the 2 month CPAP visit, but no difference at the 6 month CPAP visit or for the A/P or L/M variables at either the 2 or 6 month visits. When stratified by measures of OSA severity (AHI or oxygen saturation parameters), the primary E/F variable and one secondary E/F neurocognitive variable revealed transient differences between Study arms for those with the most severe OSA. Participants in the active CPAP group had a significantly greater ability to remain awake whether measured subjectively by the Epworth Sleepiness Scale or objectively by the maintenance of wakefulness test. Conclusions CPAP treatment improved both subjectively and objectively measured sleepiness, especially in individuals with severe OSA (AHI > 30). CPAP use resulted in mild, transient improvement in the most sensitive measures of executive and frontal-lobe function for those with severe disease, which suggests the existence of a complex OSA-neurocognitive relationship. Clinical trial information Registered at clinicaltrials.gov. Identifier: NCT00051363. Citation Kushida CA; Nichols DA; Holmes TH; Quan SF; Walsh JK; Gottlieb DJ; Simon RD; Guilleminault C; White DP; Goodwin JL; Schweitzer PK; Leary EB; Hyde PR; Hirshkowitz M; Green S; McEvoy LK; Chan C; Gevins A; Kay GG; Bloch DA; Crabtree T; Demen WC. Effects of continuous positive airway pressure on neurocognitive function in obstructive sleep apnea patients: the Apnea Positive Pressure Long-term Efficacy Study (APPLES). SLEEP 2012;35(12):1593-1602.