Sleep-disordered breathing at night is a common medical problem. It leads to daytime fatigue, impairment in concentration and daily activities, and a higher risk of cardiovascular disease and life-threatening events. A particularly common form is obstructive sleep apnea (OSA), and it is usually treatable with a high rate of patient satisfaction and improved quality of life using a continuous positive airway pressure (CPAP) device. Treatment of this condition improves nighttime low-oxygen levels by ensuring patency of the upper airways. Research shows that in cancer, sleep disordered breathing is frequent. Low oxygen levels overnight may cause tumors to grow: tumors deprived of oxygen grow more blood vessels to try to get more oxygen, and growing more blood vessels makes the tumor grow. This study aims to examine how treating sleep-disordered breathing may lessen blood-flow to lung tumors, and thus serve to ultimately block tumor growth. Participants of this study will undergo sleep study and receive CPAP therapy as a part of routine care.
Study Type
OBSERVATIONAL
CPAP therapy 3-4 weeks
UC San Diego Moores Cancer Center
La Jolla, California, United States
tumor perfusion
maximum attenuation value (MAV) detected by perfusion-CT imaging
Time frame: 3-4 weeks
reduction in circulating tumor cells (CTC)
Time frame: 3-4 weeks
Reduction in tumor promoting micro RNA expression
Time frame: 3-4 weeks
Reduction in nocturnal hypoxia
Time frame: 3-4 weeks
Improvement in sleep quality
Time frame: 3-4 weeks
progression-free survival (PFS)
Time frame: 2 years
overall survival (OS)
Time frame: 2 years
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.