Naricha Chirakalwasan, Busarakum Teerapraipruk, Lalitha Pereirasamy
Introduction: Our prior investigation found positional sleep apnea accounting for approximately 70% of Asian obstructive sleep apnea patients. We hypothesized that the habitual side sleeping may indicate an obstructive sleep apnea deterring mechanism.
Comparison of polysomnographic and Clinical presentations and predictors for Cardiovascular-Related Diseases between Non-Obese and Obese Obstructive Sleep Apnea among Asians
Naricha Chirakalwasan, M.D.; Busarakum Teerapraipruk, M.D.; Rosalind Simon, M.D.; Prakobkiat Hirunwiwatkul, M.D.; Nattapong Jaimchariyatam, M.D.; Tayard Desudchit, M.D.; Natamon Charakorn, M.D.; Chaisiri Wanlapakorn, M.D.
Introduction: Unlike Caucasians, many Asians with obstructive sleep apnea (OSA) are non-obese but are affected by the disease due to predisposing craniofacial structure. Therefore, non-obese and obese OSA may represent different disease entities. The associated risk factors for developing cardiovascular-related diseases, consequently, may be considered separately for the two types of OSA.
Rosalind Simon MD, Naricha Chirakalwasan MD, Busarakum Teerapraipruk MD, Prakobkiat Hirunwiwatkul MD, Nattapong Jaimchariyatam MD, Tayard Desudchit MD,
Natamon Charakorn MD, and Chaisiri Wanlapakorn MD
BACKGROUND: Previous studies have often investigated the association of obstructive sleep apnea (OSA) with cardiovascular morbidity and mortality, but the possibility of reverse causation has not been clearly defined.
OBJECTIVE: To examine if the presence of any of the cardiovascular-related diseases, including hypertension, diabetes mellitus, coronary artery disease, and/or cerebrovascular disease, correlates with more severe OSA.
Nattapong Jaimchariyatam, M.D., M.Sc.; Raed A. Dweik, M.D.; Roop Kaw, M.D.; Loutfi S. Aboussouan, M.D., F.A.A.S.M.
Study Objectives:Identify polysomnographic and demographic factors associated with elevation of nocturnal end-tidal CO2 n patients with obstructive sleep apnea.
Naricha Chirakalwasan, MD ; Deborah L. Ruzicka, RN, PhD; Joseph W. Burns, PhD; Ronald D. Chervin, MD, MS
Study Objectives:Respiratory cycle-related electroencephalographic (EEG) changes (RCREC), especially in delta and sigma frequencies, are thought to reflect subtle, breath-to-breath inspiratory microarousals that are exacerbated in association with increased work of breathing in obstructive sleep apnea (OSA). We wondered whether snoring sounds could create these microarousals, and investigated whether earplugs, anticipated to alter snoring perception, might affect RCREC.