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Sleep Centre Research Staff

Dr. Pat Hanly

University Appointment

Professor of Medicine (Departments of Medicine)

Research Interests

  • Sleep disordered breathing and kidney disease
  • Sleep apnea and stroke
  • Pathogenesis of Obstructive Sleep Apnea
  • Cardiovascular complications of Obstructive Sleep Apnea

Current Projects

  • Prevalence of sleep apnea and nocturnal hypoxia in patients with chronic kidney disease
  • Effect of obstructive sleep apnea on kidney function
  • White matter disease in patients with TIA and minor stroke

Graduate Degree Supervision

  • Under-graduate: Yes
  • MSc: Yes
  • PhD: Yes
  • Post-doc: Yes
  • Sub-specialty medical fellows: Yes

Funding

Ad hoc

Recent Articles

  • Ahmed SB, Ronksley PE, Hemmelgarn BR, Tsai WH, Manns BJ, Tonelli M, Klarenbach SW, Chin R, Clement FM, Hanly PJ. Nocturnal hypoxia and loss of kidney function. PLoS One. 2011,6(4):e19029
  • Chan W, Coutts SB, Hanly P. Sleep apnea in patients with transient ischemic attack and minor stroke: opportunity for risk reduction of recurrent stroke? Stroke. 2010,41(12): 2973-5.

Dr. Sachin Pendharkar

University Appointment

Assistant Professor (Department of Medicine)

Research Interests

Healthcare Operations Research, Patient Flow

Current Projects

  • Using computer simulation to improve the operational efficiency of an academic sleep centre
  • Identification of Sleep disorders using electronic health data

Graduate Degree Supervision

  • Under-graduate: Yes
  • MSc: No
  • PhD: No
  • Post-doc: No
  • Sub-specialty medical fellows: Yes

Funding

Ad hoc

Recent Articles

  • Pendharkar SR, Tsai WH, Eves N, Ford GT, Davidson W. Continuous Positive Airway Pressure (CPAP) Therapy Increases Exercise Tolerance in Obese Subjects with Obstructive Sleep Apnea. Respir Med (In Press, doi:10.1016/j.rmed.2011.06.007)
  • Sabur NF, Kelly MM, Gill MJ, Ainslie M, Pendharkar SR. Granulomatous Pneumocystis jiroveci Pneumonia Associated With Immune Reconstituted HIV. Can Respir J (In Press)

Dr. Willis Tsai

University Appointment

Clinical Associate Professor (Departments of Medicine and Community Health Sciences)

Research Interests

Health Care Utilization and Administrative Databases, Data Enhancement Algorithms

Current Projects

  • Identification of sleep disorders using electronic health data.
  • Peri-operative risk factors in OSA.

Graduate Degree Supervision

  • Under-graduate: Yes
  • MSc: Yes
  • PhD: No
  • Post-doc: No
  • Sub-specialty medical fellows: Yes

Funding

Ad hoc

Recent Articles

  • Ronksley PE, Hemmelgarn BR, Heitman SJ, Flemons WW, Ghali WA, Manns B, Faris P, Tsai WH. Excessive daytime sleepiness is associated with increased health care utilization among patients referred for assessment of OSA. Sleep. 2011;34(3):363-70.
  • Ronksley PE, Hemmelgarn BR, Heitman SJ, Hanly PJ, Faris PD, Quan H, Tsai WH. Obstructive sleep apnoea is associated with diabetes in sleepy subjects. Thorax. 2009;64(10):834-9.

Dr. Andrea Loewen

University Appointment

Clinical Assistant Professor (Department of Medicine)

Research Interests

Sleep and neuromuscular disease, pathophysiology of obstructive sleep apnea

Current Projects

  • Polysomnography in ALS

Graduate Degree Supervision

  • Under-graduate: Yes
  • MSc: No
  • PhD: No
  • Post-doc: No
  • Sub-specialty medical fellows: Yes

Funding

Ad hoc

Recent Articles

  • Loewen AHS, Ostrowski M, Laprairie J, Maturino F, Hanly PJ, Younes M Response of Genioglossus Muscle to Increasing Chemical Drive in Sleeping Obstructive Apnea Patients. SLEEP, In Press
  • Loewen AHS, Ostrowski M, Laprairie J, Atkar R, Gnitecki J, Hanly P, Younes M. Determinants of ventilatory instability in obstructive sleep apnea: inherent or acquired?. Sleep. 32(10):1355-65, 2009