keyword
MENU ▼
Read by QxMD icon Read
search

Hypopnea

keyword
https://www.readbyqxmd.com/read/28822020/polysomnographic-determinants-of-requirement-for-advanced-positive-pressure-therapeutic-options-for-obstructive-sleep-apnea
#1
Anupama Gupta, Garima Shukla
BACKGROUND: A small percentage of adult patients with severe obstructive sleep apnea (OSA) has been recognized to be extraordinarily difficult to treat with conventional continuous or Bi-level positive airway pressure (together referred to as PAP) therapy. AIM AND OBJECTIVES: The aim of this study was to determine polysomnographic (PSG) characteristics, which may help predict the requirement for advanced therapeutic options for OSA. METHODS: Consecutive patients who underwent PAP titration at our sleep laboratory over a 2-year period were included...
August 18, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/28822017/validation-of-a-non-contact-screening-device-for-the-combination-of-sleep-disordered-breathing-and-periodic-limb-movements-in-sleep
#2
Gerhard Weinreich, Sarah Terjung, Yi Wang, Stefanie Werther, Alberto Zaffaroni, Helmut Teschler
PURPOSE: Recent studies found that the non-contact screening device SleepMinder (ResMed Sensor Technologies, Dublin, Ireland) detects sleep-disordered breathing (SDB) with high diagnostic accuracy in cohorts suspected of this disorder. However, it was reported that in patients with periodic limb movement in sleep (PLMS), this non-contact device overestimates the apnea-hypopnea index (AHI). We aimed to overcome this limitation by introducing the novel sleep disorder index (SDI) which is sum of the AHI and the period limb movement index (PLMI)...
August 18, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/28819181/capnography-monitoring-the-hypoventilation-during-the-induction-of-bronchoscopic-sedation-a-randomized-controlled-trial
#3
Ting-Yu Lin, Yueh-Fu Fang, Shih-Hao Huang, Tsai-Yu Wang, Chih-Hsi Kuo, Hau-Tieng Wu, Han-Pin Kuo, Yu-Lun Lo
We hypothesize that capnography could detect hypoventilation during induction of bronchoscopic sedation and starting bronchoscopy following hypoventilation, may decrease hypoxemia. Patients were randomized to: starting bronchoscopy when hypoventilation (hypopnea, two successive breaths of at least 50% reduction of the peak wave compared to baseline or apnea, no wave for 10 seconds) (Study group, n = 55), or when the Observer Assessment of Alertness and Sedation scale (OAAS) was less than 4 (Control group, n = 59)...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28818154/physiology-based-modeling-may-predict-surgical-treatment-outcome-for-obstructive-sleep-apnea
#4
Yanru Li, Jingying Ye, Demin Han, Xin Cao, Xiu Ding, Yuhuan Zhang, Wen Xu, Jeremy Orr, Rachel Jen, Scott Sands, Atul Malhotra, Robert Owens
STUDY OBJECTIVES: To test whether the integration of both anatomical and nonanatomical parameters (ventilatory control, arousal threshold, muscle responsiveness) in a physiology-based model will improve the ability to predict outcomes after upper airway surgery for obstructive sleep apnea (OSA). METHODS: In 31 patients who underwent upper airway surgery for OSA, loop gain and arousal threshold were calculated from preoperative polysomnography (PSG). Three models were compared: (1) a multiple regression based on an extensive list of PSG parameters alone; (2) a multivariate regression using PSG parameters plus PSG-derived estimates of loop gain, arousal threshold, and other trait surrogates; (3) a physiological model incorporating selected variables as surrogates of anatomical and nonanatomical traits important for OSA pathogenesis...
August 14, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/28817760/association-between-hypercoagulability-and-severe-obstructive-sleep-apnea
#5
Seung-No Hong, Hee-Chul Yun, Joon Hyuk Yoo, Seung Hoon Lee
Importance: Obstructive sleep apnea (OSA) is related to the increased risk of cardiovascular disease. Although the pathogenesis of this association remains unclear, an alteration in coagulability is suspected as a link. Objective: To investigate the association between the severity of OSA and blood coagulability. Design, Setting, and Participants: A retrospective cohort study conducted at a tertiary care university hospital evaluated 146 patients with OSA from January 1, 2009, to July 31, 2015...
August 17, 2017: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28816290/-treatment-outcome-evaluation-of-different-mandibular-advancements-using-oral-appliance-to-treat-obstructive-sleep-apnea-and-hyponea-syndrome-a-systematic-review
#6
Y Y Ma, J J Zhang, X M Gao
OBJECTIVE: To evaluate the polysomnology results along with mandibular titrated advancement using oral appliance to treat obstructive sleep apnea and hyponea syndrome (OSAHS). METHODS: Several electronic databases (PubMed, Embase, Cochrane Library, CNKI, VIP, and Wanfang) were systematically searched up to September 2015. There was no restriction of language or source of information. All randomized clinical trials (RCT) and before-after trials (BAT) comparing at least two different mandibular advancements were included...
August 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28808850/non-rem-sleep-disordered-breathing-affects-performance-on-the-psychomotor-vigilance-task
#7
Takuro Kitamura, Soichiro Miyazaki, Hiroshi Kadotani, Takashi Kanemura, Harun Bin Sulaiman, Shoko Takeuchi, Takahisa Tabata, Hideaki Suzuki
PURPOSE: Although many studies have investigated the clinical importance of sleep apnea on rapid eye movement (REM) and non-REM (NREM) sleep, the relationship between behavioral performance and apneic events during different sleep phases remains unclear. In the present study, we sought to investigate the effect of sleep phase fragmentation due to sleep-disordered breathing (SDB) during REM and NREM on the vigilance and sustainability of attention based on psychomotor vigilance task (PVT) performance...
August 14, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/28808320/carotid-body-mediated-chemoreflex-drive-in-the-setting-of-low-and-high-output-heart-failure
#8
Rodrigo Del Rio, David C Andrade, Camilo Toledo, Hugo S Diaz, Claudia Lucero, Alexis Arce-Alvarez, Noah J Marcus, Harold D Schultz
Enhanced carotid body (CB) chemoreflex function is strongly related to cardiorespiratory disorders and disease progression in heart failure (HF). The mechanisms underlying CB sensitization during HF are not fully understood, however previous work indicates blood flow per se can affect CB function. Then, we hypothesized that the CB-mediated chemoreflex drive will be enhanced only in low output HF but not in high output HF. Myocardial infarcted rats and aorto-caval fistulated rats were used as a low output HF model (MI-CHF) and as a high output HF model (AV-CHF), respectively...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28807565/disrupted-day-night-pattern-of-cardiovascular-death-in-obstructive-sleep-apnea
#9
Emerson Ferreira Martins, Denis Martinez, Fernando A Boeira Sabino da Silva, Lauren Sezerá, Rodrigo da Rosa de Camargo, Cintia Zappe Fiori, Flávio Danni Fuchs, Ruy Silveira Moraes
BACKGROUND: Obstructive sleep apnea (OSA) patients who suffer sudden cardiac death die predominantly during the night. We aimed to investigate whether all cardiovascular-related deaths display the same night-time peak as sudden cardiac death. METHODS: Data from a large cohort of adults who underwent full-night polysomnography between 1985 and 2015 in a university-affiliated sleep clinic were analyzed. Time and cause of death of these patients and of persons from the general population were identified in death certificates from the State Health Secretariat...
July 26, 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28807529/correlation-of-soft-palate-length-with-velum-obstruction-and-severity-of-obstructive-sleep-apnea-syndrome
#10
Ju-Shin Lim, Jae Woo Lee, Chun Han, Jang-Woo Kwon
OBJECTIVE: Our aim in this study was to analyze whether soft palate length and velum obstruction during sleep are correlated and to determine the effects of related parameters on obstructive sleep apnea syndrome (OSAS) severity. We used computed tomography to measure soft palate length and drug-induced sleep endoscopy (DISE) to evaluate velum obstruction severity. Patients also underwent polysomnography (PSG) for evaluation of OSAS severity. METHODS: A retrospective cohort of 67 patients with OSAS treated between May 1st, 2013 and July 31st, 2016 was analyzed...
August 11, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28805272/clinical-phenotype-of-south-east-asian-temporomandibular-disorder-patients-with-upper-airway-resistance-syndrome
#11
David K L Tay, Kenny P Pang
OBJECTIVE: To document the clinical phenotype of temporomandibular disorder (TMD) patients with concomitant upper airway resistance syndrome (UARS) in a South East Asian population. STUDY DESIGN: A multi-center prospective series of 86 TMD patients (26 men and 60 women / mean age 35.7 years) with UARS. All had excessive daytime sleepiness, high arousal index and apnea-hypopnea index (AHI)<5 RESULTS: The mean body mass index was 20.1, mean arousal index 16.2, mean respiratory disturbance index 19...
August 14, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28802388/adenotonsillectomy-outcomes-in-children-with-sleep-apnea-and-narcolepsy
#12
Sneh Biyani, Tina D Cunningham, Cristina M Baldassari
OBJECTIVE: To identify improvements in daytime sleepiness following adenotonsillectomy in children with non-severe obstructive sleep apnea and narcolepsy. STUDY DESIGN: Case series with chart review over 15 years. SETTING: Tertiary Children's Hospital. SUBJECTS AND METHODS: Children between 6 and 17 years of age with narcolepsy that underwent adenotonsillectomy for non-severe obstructive sleep apnea (OSA) were included...
September 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28802380/can-telemetry-data-obviate-the-need-for-sleep-studies-in-pierre-robin-sequence
#13
Nicole Leigh Aaronson, Noel Jabbour
OBJECTIVE: This study looks to correlate telemetry data gathered on patients with Pierre Robin Sequence (PRS) with sleep study data. Strong correlation might allow obstructive sleep apnea (OSA) to be reasonably predicted without the need for sleep study. METHODS: Charts from forty-six infants with PRS who presented to our children's hospital between 2005 and 2015 and received a polysomnogram (PSG) prior to surgical intervention were retrospectively reviewed. Correlations and scatterplots were used to compare average daily oxygen nadir, overall oxygen nadir, and average number of daily desaturations from telemetry data with apnea-hypopnea index (AHI) and oxygen nadir on sleep study...
September 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28802366/formula-for-the-prediction-of-apnea-hypopnea-index-in-children-with-obstructive-sleep-apnea-without-polysomnography-according-to-the-clinical-parameters-is-it-reliable
#14
Zlatko Kljajić, Željka Roje, Kristijan Bečić, Vesna Čapkun, K Vilović, Petar Ivanišević, Eugenija Marušić
PURPOSE OF THE STUDY: The aim of the study was to propose "the risk formula" for obstructive sleep apnea in children according to the general and local clinical parameters and findings relevant for obstructive sleep apnea (OSA) severity. The unmet need for this formula arises from the economic burden of polysomnography (device, staff, training, special sleep centers, etc) as the golden standard for the diagnostics. MATERIALS AND METHODS USED: The study was performed from January 2013 until January 2016 in the Sleep Center, Department for Neuroscience, School of Medicine of the University of Split, Department of Pediatrics, University Hospital Split, Croatia and ENT Dept...
September 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28800204/comparison-of-robotic-and-coblation-tongue-base-resection-for-obstructive-sleep-apnea
#15
Chi Sang Hwang, Jin Won Kim, Jin Woong Kim, Eun Jung Lee, Chang-Hoon Kim, Joo-Heon Yoon, Hyung-Ju Cho
OBJECTIVES: To compare the efficacy and safety of transoral robotic surgery (TORS) with endoscope-guided coblation tongue base resection. DESIGN: Retrospective case-control study. SETTING: University-based tertiary care medical center. PARTICIPANTS: OSA patients who underwent endoscope-guided tongue base coblation resection or TORS in combination with lateral pharyngoplasty at a single institution in South Korea between April 2013 and December 2016 were investigated...
August 11, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28800040/effect-of-continuous-positive-airway-pressure-in-hypertensive-patients-with-obstructive-sleep-apnea-and-high-urinary-metanephrines
#16
Luisa Gilardini, Carolina Lombardi, Gabriella Redaelli, Paola Mattaliano, Paolo Fanari, Mauro Cornacchia, Massimo Scacchi, Stefania Mai, Patrizia Ferronato, Gianfranco Parati, Cecilia Invitti
OBJECTIVE: Some cases of pseudopheochromocytoma have been described among hypertensive patients with obstructive sleep apnea (OSA). This study examined whether a pathological rise of urinary metanephrines is a common feature in hypertensive OSA patients and, in such a case, whether the ventilation treatment during sleep (continuous or biphasic positive airway pressure) may normalize high metanephrines levels. METHODS: Patients with endocrine diseases, drug abuse, therapy with TCA and cardiovascular events in the previous 6 months were excluded...
August 10, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28798255/benefits-of-oxytocin-administration-in-obstructive-sleep-apnea
#17
Vivek Jain, Joseph Marbach, Shawn Kimbro, David C Andrade, Arad Jain, Eleanor Capozzi, Kyle Mele, Rodrigo Del Rio, Matthew W Kay, David Mendelowitz
Activation of oxytocin receptors has shown benefits in animal models of Obstructive Sleep Apnea (OSA). We tested if nocturnal oxytocin administration could have beneficial effects in OSA patients. 8 patients diagnosed with OSA were administered intranasal oxytocin (40 i.u.). Changes in cardiorespiratory events during sleep, including apnea and hypopnea durations and frequency, risk of event-associated arousals, and heart rate variability were assessed. Oxytocin significantly increased indices of parasympathetic activity, including heart rate variability, total sleep time, and the Post-Polysommogram Sleep Assessment (PPSA) score, an index of self-reported sleep satisfaction...
August 10, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28797558/prevalence-and-predictors-associated-with-severe-pulmonary-hypertension-in-copd
#18
Mitra Samareh Fekri, Mehdi Torabi, Sara Azizi Shoul, Moghaddameh Mirzaee
BACKGROUND: Pulmonary hypertension (PH) is one of the most common complications of COPD (chronic obstructive pulmonary disease), but its severe form is uncommon. Various factors play an important role in the occurrence and severity of pulmonary hypertension in patients. METHODS: This cross-sectional study was performed on patients with COPD referred to an emergency department over a one-year period. The tests-including complete blood count (CBC) and arterial blood gas (ABG), pulmonary functional test (PFT) and echocardiography-were performed for all patients to measure mPAP (mean pulmonary artery pressure), ejection fraction (EF) and body mass index (BMI)...
August 5, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28796077/association-of-adiponectin-level-and-obstructive-sleep-apnea-prevalence-in-obese-subjects
#19
Fanfang Zeng, Xiang Wang, Wei Hu, Lili Wang
Obstructive sleep apnea (OSA) is prevalent in obese subjects. Plasma adiponectin level in obese subjects is decreased. Whether reduced adiponectin level is associated with OSA is unknown. Participants without a previous diagnosis of OSA or who have not been treated with continuous positive airway pressure were enrolled and parameters of interest were collected. Polysomnography was performed to evaluate the presence of OSA and the severity of OSA as indexed by the apnea-hypopnea index (AHI). Between-group differences were analyzed...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28795409/upper-airway-surgery-for-obstructive-sleep-apnea-reduces-blood-pressure
#20
Kenny P Pang, Edward B Pang, Kathleen A Pang, Claudio Vicini, Yiong Huak Chan, Brian W Rotenberg
OBJECTIVES/HYPOTHESIS: To evaluate if upper airway surgery reduces blood pressure in patients with obstructive sleep apnea (OSA). STUDY DESIGN: Prospective series. METHODS: A prospective series of 112 consecutive OSA patients with hypertension (HTN). All patients were > 18 years old, respiratory disturbance index >5, all levels of apnea-hypopnea index (AHI), with a history of HTN treated with medication for at least 6 months. Surgical procedures included septoplasty, turbinate reduction, palate surgery, and tongue base reduction...
August 10, 2017: Laryngoscope
keyword
keyword
108360
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"