Krishna M. Sundar
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View article: Feasibility and preliminary efficacy results for WePAP: A transdiagnostic, couples-based intervention to promote positive airway pressure adherence and patient and partner sleep health
Feasibility and preliminary efficacy results for WePAP: A transdiagnostic, couples-based intervention to promote positive airway pressure adherence and patient and partner sleep health Open
View article: Heat Wave Risks for People with Lung Disease
Heat Wave Risks for People with Lung Disease Open
View article: UTAH SOUTH ASIAN CARDIOVASCULAR HEALTH INITIATIVE (U-SACHI): ASSESSING THE BEHAVIORAL IMPACT OF A CULTURALLY TAILORED LIFESTYLE INTERVENTION PROGRAM ON CARDIOVASCULAR HEALTH IN UTAH SOUTH ASIANS
UTAH SOUTH ASIAN CARDIOVASCULAR HEALTH INITIATIVE (U-SACHI): ASSESSING THE BEHAVIORAL IMPACT OF A CULTURALLY TAILORED LIFESTYLE INTERVENTION PROGRAM ON CARDIOVASCULAR HEALTH IN UTAH SOUTH ASIANS Open
View article: 1103 The Role of Novel Polysomnographic Parameters in Predicting Blood Pressure
1103 The Role of Novel Polysomnographic Parameters in Predicting Blood Pressure Open
Introduction Hypertension is linked to obstructive sleep apnea (OSA) through mechanisms such as heightened sympathetic activation, sleep arousals, and intermittent hypoxia. Polysomnographic parameters, including the apnea-hypopnea index (A…
View article: Questions and Answers about Measles
Questions and Answers about Measles Open
View article: Eosinophilic colitis necessitating surgery: a rare case report
Eosinophilic colitis necessitating surgery: a rare case report Open
Eosinophilic colitis (EC) is a rare heterogenous inflammatory disorder with a wide range of symptoms that can mimic a variety of pathologies. We report a rare case of EC presenting as recurrent intestinal obstruction. A 45-year gentleman p…
View article: Questions and Answers about Measles
Questions and Answers about Measles Open
View article: Referee report. For: Correlation of therapeutic pressure between home automatic positive airway pressure and in laboratory polysomnography manual titration in patients with obstructive sleep apnea [version 1; peer review: 1 approved with reservations, 1 not approved]
Referee report. For: Correlation of therapeutic pressure between home automatic positive airway pressure and in laboratory polysomnography manual titration in patients with obstructive sleep apnea [version 1; peer review: 1 approved with reservations, 1 not approved] Open
View article: Noncontact respiratory monitoring during sleep: comparison of the touchless flow signal with respiratory inductance plethysmography flow (RIP <sub>flow</sub> ) signal to assess respiratory events
Noncontact respiratory monitoring during sleep: comparison of the touchless flow signal with respiratory inductance plethysmography flow (RIP <sub>flow</sub> ) signal to assess respiratory events Open
The high values of correlation and concordances confirm that the NCMflow signal can potentially be used as a surrogate for RIPflow signal during sleep. Our findings strongly support the potential for non-contact, cont…
View article: Positive Airway Pressure, Mortality, and Cardiovascular Risk in Older Adults With Sleep Apnea
Positive Airway Pressure, Mortality, and Cardiovascular Risk in Older Adults With Sleep Apnea Open
Importance Positive airway pressure (PAP) is the first-line treatment for obstructive sleep apnea (OSA), but evidence on its beneficial effect on major adverse cardiovascular events (MACE) and mortality prevention is limited. Objective To …
View article: The Role of Obstructive Sleep Apnea in Hypercapnic Respiratory Failure Identified in Critical Care, Inpatient, and Outpatient Settings
The Role of Obstructive Sleep Apnea in Hypercapnic Respiratory Failure Identified in Critical Care, Inpatient, and Outpatient Settings Open
View article: Predictors of Initial CPAP Prescription and Subsequent Course with CPAP in Patients with Central Sleep Apneas at a Single Center
Predictors of Initial CPAP Prescription and Subsequent Course with CPAP in Patients with Central Sleep Apneas at a Single Center Open
View article: Positive Airway Pressure Therapy Predicts Lower Mortality and Major Adverse Cardiovascular Events Incidence in Medicare Beneficiaries with Obstructive Sleep Apnea
Positive Airway Pressure Therapy Predicts Lower Mortality and Major Adverse Cardiovascular Events Incidence in Medicare Beneficiaries with Obstructive Sleep Apnea Open
Background Obesity is associated with obstructive sleep apnea (OSA) and cardiovascular risk. Positive airway pressure (PAP) is the first line treatment for OSA, but evidence on its beneficial effect on major adverse cardiovascular events (…
View article: Predictors of Initial CPAP Prescription and Subsequent Course with CPAP in Patients with Central Sleep Apneas
Predictors of Initial CPAP Prescription and Subsequent Course with CPAP in Patients with Central Sleep Apneas Open
Purpose: Guidelines recommend considering an initial trial of continuous positive airway pressure (CPAP) to treat central sleep apnea (CSA). However, practice patterns vary widely. This study investigated predictors for an initial trial of…
View article: Increased blood reactive oxygen species and hepcidin in obstructive sleep apnea precludes expected erythrocytosis
Increased blood reactive oxygen species and hepcidin in obstructive sleep apnea precludes expected erythrocytosis Open
Obstructive sleep apnea (OSA) causes intermittent hypoxia during sleep. Hypoxia predictably initiates an increase in the blood hemoglobin concentration (Hb); yet in our analysis of 527 patients with OSA, >98% did not have an elevated Hb. T…
View article: 0930 What explains high self-reports of poor sleep quality in Native Hawaiian/Pacific Islanders?
0930 What explains high self-reports of poor sleep quality in Native Hawaiian/Pacific Islanders? Open
Introduction High rates of poor sleep quality have been reported among patients of Native Hawaiian/Pacific Islander (NHPI) race. Unrestful sleep might be attributable to short sleep times or to elevated rates of obstructive sleep apnea amo…
View article: 0596 Overlap of Psychiatric Disorders with Central Hypersomnia
0596 Overlap of Psychiatric Disorders with Central Hypersomnia Open
Introduction In sleep clinics, hypersomnia is a frequently encountered condition. While narcolepsy and idiopathic hypersomnia are discrete diagnoses that typically do not have co-existing psychiatric co-morbidities, sleep practitioners oft…
View article: Rationale and study protocol for We-PAP: a randomized pilot/feasibility trial of a couples-based intervention to promote PAP adherence and sleep health compared to an educational control
Rationale and study protocol for We-PAP: a randomized pilot/feasibility trial of a couples-based intervention to promote PAP adherence and sleep health compared to an educational control Open
Background Obstructive sleep apnea (OSA) is a serious health condition that affects approximately 30-50% of older adults and contributes to risk for cardiometabolic disorders and dementia. Despite the well-documented role of partners in tr…
View article: Couples-based interventions to promote PAP adherence among older adults: a qualitative study of patients, partners, and providers
Couples-based interventions to promote PAP adherence among older adults: a qualitative study of patients, partners, and providers Open
View article: Risk of COPD exacerbation is increased by poor sleep quality and modified by social adversity
Risk of COPD exacerbation is increased by poor sleep quality and modified by social adversity Open
Study Objectives Sleep is an important dimension in the care of chronic obstructive pulmonary disease (COPD), but its relevance to exacerbations is unclear. We wanted to assess whether sleep quality as measured by the Pittsburgh Sleep Qual…
View article: 0763 Couples-based treatment for OSA: Qualitative analysis of patient, bedpartner and provider perspectives
0763 Couples-based treatment for OSA: Qualitative analysis of patient, bedpartner and provider perspectives Open
Introduction Obstructive sleep apnea (OSA) and its treatment (positive airway pressure; PAP) impacts both patient and bedpartner health and their respective quality of life. Despite the effectiveness of PAP at treating OSA and evidence tha…
View article: OSA and Chronic Respiratory Disease: Mechanisms and Epidemiology
OSA and Chronic Respiratory Disease: Mechanisms and Epidemiology Open
Obstructive sleep apnea (OSA) is a highly prevalent disorder that has profound implications on the outcomes of patients with chronic lung disease. The hallmark of OSA is a collapse of the oropharynx resulting in a transient reduction in ai…
View article: Electronic health record–derived outcomes in obstructive sleep apnea managed with positive airway pressure tracking systems
Electronic health record–derived outcomes in obstructive sleep apnea managed with positive airway pressure tracking systems Open
View article: We-PAP, A novel, couples’ - based sleep health intervention for older adults with obstructive sleep apnea: Rationale and study protocol for a web-based randomized clinical pilot/feasibility trial of the We-PAP intervention compared to an educational control
We-PAP, A novel, couples’ - based sleep health intervention for older adults with obstructive sleep apnea: Rationale and study protocol for a web-based randomized clinical pilot/feasibility trial of the We-PAP intervention compared to an educational control Open
BackgroundObstructive sleep apnea (OSA) is a serious health condition that affects approximately 30–50% of older adults and contributes to risk for cardiometabolic disorders and dementia. Despite the well-documented role of partners in tre…
View article: ATS Core Curriculum 2021. Adult Pulmonary Medicine: Thoracic Oncology
ATS Core Curriculum 2021. Adult Pulmonary Medicine: Thoracic Oncology Open
The American Thoracic Society Core Curriculum updates clinicians annually in adult and pediatric pulmonary disease, medical critical care, and sleep medicine at the annual international conference. The 2021 Pulmonary Core Curriculum focuse…
View article: 393 Comparison of Oxygenation Abnormalities Between Obstructive Sleep Apnea and Central Sleep Apnea
393 Comparison of Oxygenation Abnormalities Between Obstructive Sleep Apnea and Central Sleep Apnea Open
Introduction The apnea-hypopnea index (AHI) is used as a generic index to quantify both central sleep apnea (CSA) and obstructive sleep apnea (OSA) syndromes. Patterns of oxygenation abnormalities seen in CSA and OSA may be key to understa…
View article: 392 Effect of Obstructive Sleep Apnea Severity, Sleep Stage and Position on Patterns of Oximetric Desaturations and Resaturations
392 Effect of Obstructive Sleep Apnea Severity, Sleep Stage and Position on Patterns of Oximetric Desaturations and Resaturations Open
Introduction Obstructive sleep apnea (OSA) severity based upon the apnea-hypopnea index (AHI) ignores many characteristics such as the duration of apnea-hypopneas, the duration and degree of oxygen desaturations (SpO2) etc. While hypoxemic…
View article: 404 Sleep-Disordered Breathing In Native Hawaiians/Pacific Islanders With Associated Comorbidities And Adherence To Therapy
404 Sleep-Disordered Breathing In Native Hawaiians/Pacific Islanders With Associated Comorbidities And Adherence To Therapy Open
Introduction Sleep-disordered breathing in Native Hawaiians and Pacific Islanders (NHPIs), its relationship to type 2 diabetes mellitus (DM), chronic renal, and heart disease, is not well known. NHPIs comprise only 1.3% of Utah’s populatio…
View article: A Laryngeal Hypersensitivity Scoring System in Patients with Refractory Chronic Cough
A Laryngeal Hypersensitivity Scoring System in Patients with Refractory Chronic Cough Open
View article: Is laryngeal hypersensitivity the basis of unexplained or refractory chronic cough?
Is laryngeal hypersensitivity the basis of unexplained or refractory chronic cough? Open
Refractory chronic cough (RCC) and unexplained chronic cough (UCC) are common problems seen in primary care and subspecialty clinics. The role of cough hypersensitivity and laryngeal dysfunction in contributing to the persistence of cough …