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Ambulatory oximetry

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https://www.readbyqxmd.com/read/27811597/predictors-of-at-home-arterial-oxygen-desaturation-events-in-ambulatory-surgical-patients
#1
Chuck Biddle, Charles Elam, Laura Lahaye, Gordon Kerr, Laura Chubb, Brad Verhulst
OBJECTIVES: Little is known about the early recovery phase occurring at-home after anesthesia and surgery in ambulatory surgical patients. We studied quantitative oximetry and quality-of-life metrics in the first 48 hours after same-day orthopedic surgery examining the association between the recovery metrics and specific patient and procedural factors. METHODS: We used the STOP-Bang score to quantify patient risk for obstructive sleep apnea in 50 adult patients at 2 centers using continuous portable oximetry and patient journaling...
November 2, 2016: Journal of Patient Safety
https://www.readbyqxmd.com/read/27508565/-op-8b-07-utility-of-sleep-polygraphic-studies-in-tertiary-care-hypertension-out-patient-clinic
#2
M M Nowak, A Komand, D Ostrowka, M Jancewicz, R Nowak, T Wawrowski, M Nowak, J Wolf, K Narkiewicz
OBJECTIVE: Prevalence of obstructive sleep apnea (OSA) in patients with hypertension outnumbers the prevalence reported in general population. Concurrently, majority of patients remain undiagnosed. Given the fact that untreated OSA contributes to an ineffective hypotensive treatment, and higher rate of complications ascribed to hypertension, early OSA-diagnosis and its elimination constitutes one of the key clinical goals. Polysomnography comprises a golden standard in sleep apnea diagnosis, however, it is a time-consuming and expensive procedure which requires hospitalization...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/26869656/recap-detection-of-potentially-avoidable-harm-in-oncology-from-patient-medical-records
#3
Allison Lipitz-Snyderman, Saul N Weingart, Christopher Anderson, Andrew S Epstein, Aileen Killen, David Classen, Camelia S Sima, Elizabeth Fortier, Coral L Atoria, David Pfister, Allison Lipitz-Snyderman, Saul N Weingart, Christopher Anderson, Andrew S Epstein, Aileen Killen, David Classen, Camelia S Sima, Elizabeth Fortier, Coral L Atoria, David Pfister
PURPOSE: Widespread consensus exists about the importance of addressing patient safety issues in oncology, yet our understanding of the frequency, spectrum, and preventability of adverse events (AEs) across cancer care is limited. METHODS: We developed a screening tool to detect AEs across cancer care settings through medical record review. Members of the study team reviewed the scientific literature and obtained structured input from an external multidisciplinary panel of clinicians by using a modified Delphi process...
February 2016: Journal of Oncology Practice
https://www.readbyqxmd.com/read/26822460/effect-of-obesity-and-glycated-hemoglobin-on-oxygen-saturation-in-ambulatory-type-2-diabetic-individuals-a-pilot-study
#4
Seema Garg, Stuti Gupta, Md Salamtullah Mobeen, Sri Venkata Madhu
AIMS: Tissue hypoxia is an important contributor to diabetic complications. Glycation of hemoglobin (Hb) and obesity are major determinant of oxygen saturation (SpO2) in blood. Hence, the present study was planned to evaluate the effect of obesity on SpO2 in a wide range of glycated hemoglobin (HbA1c) levels in ambulatory type 2 diabetic patients. MATERIAL AND METHODS: A cohort of 60 subjects irrespective of diabetic status were recruited and clustered in group I (HbA1c <6...
July 2016: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/26547829/ambulatory-pulse-oximetry-as-a-clinical-aid-for-the-diagnosis-and-treatment-response-of-radiation-pneumonitis
#5
Eli D Scher, Sinae Kim, Matthew P Deek, Inaya Ahmed, Jiten P Kothadia, Sairam Balasubramanian, Joseph Aisner, Sharad Goyal, Salma K Jabbour
PURPOSE: Radiation pneumonitis (RP) is a clinical diagnosis, with no single best method of detection currently available. This study evaluated whether a decline between resting (rPO) and ambulatory (aPO) pulse oximetry (PO) levels after concurrent chemotherapy and radiation therapy (RT) can serve as a clinical aid in diagnosing and evaluating treatment response of grade 2-3 RP. METHODS AND MATERIALS: Between March 2007 and November 2013, rPO and aPO values were obtained from 55 patients immediately after definitive thoracic RT and at each subsequent visit, for up to 4 visits...
November 2015: Practical Radiation Oncology
https://www.readbyqxmd.com/read/25277457/diagnosing-serious-infections-in-acutely-ill-children-in-ambulatory-care-ernie-2-study-protocol-part-a-diagnostic-accuracy-of-a-clinical-decision-tree-and-added-value-of-a-point-of-care-c-reactive-protein-test-and-oxygen-saturation
#6
RANDOMIZED CONTROLLED TRIAL
Jan Y Verbakel, Marieke B Lemiengre, Tine De Burghgraeve, An De Sutter, Dominique M A Bullens, Bert Aertgeerts, Frank Buntinx
BACKGROUND: Acute illness is the most common presentation of children to ambulatory care. In contrast, serious infections are rare and often present at an early stage. To avoid complications or death, early recognition and adequate referral are essential. In a recent large study children were included prospectively to construct a symptom-based decision tree with a sensitivity and negative predictive value of nearly 100%. To reduce the number of false positives, point-of-care tests might be useful, providing an immediate result at bedside...
2014: BMC Pediatrics
https://www.readbyqxmd.com/read/24991437/screening-sleep-disordered-breathing-in-stroke-unit
#7
Kirsi Väyrynen, Kati Kortelainen, Heikki Numminen, Katja Miettinen, Anna Keso, Mirja Tenhunen, Heini Huhtala, Sari-Leena Himanen
In acute stroke, OSA has been found to impair rehabilitation and increase mortality but the effect of central apnea is more unclear. The aim of the present study was to evaluate the feasibility of using limited ambulatory recording system (sleep mattress to evaluate nocturnal breathing and EOG-electrodes for sleep staging) in sleep disordered breathing (SDB) diagnostics in mild acute cerebral ischemia patients and to discover the prevalence of various SDB-patterns among these patients. 42 patients with mild ischemic stroke or transient ischemic attack were studied...
2014: Sleep Disorders
https://www.readbyqxmd.com/read/24851869/exaggerated-blood-pressure-variability-in-patients-with-pneumoconiosis-a-pilot-study
#8
RANDOMIZED CONTROLLED TRIAL
Yuki Imaizumi, Kazuo Eguchi, Akira Taketomi, Takuya Tsuchihashi, Kazuomi Kario
BACKGROUND: Chronic hypoxia is a risk factor for cardiovascular disease, but its association with blood pressure (BP) remains unclear. We performed this study to clarify the hypothesis that chronic hypoxia is associated with abnormal BP variability in patients with pneumoconiosis. METHODS: We recruited 19 patients with pneumoconiosis and 30 age- and BP level-matched control subjects. We used simultaneous pulse oximetry and ambulatory BP monitoring for all subjects...
December 2014: American Journal of Hypertension
https://www.readbyqxmd.com/read/24796364/telemold-project-oximetry-and-exercise-telemonitoring-to-improve-long-term-oxygen-therapy
#9
COMPARATIVE STUDY
Inês Faria, Carina Gaspar, Manuela Zamith, Isabel Matias, Rui César das Neves, Fátima Rodrigues, Cristina Bárbara
BACKGROUND: Standard assessment of long-term oxygen therapy (LTOT) prescription involves hospital-based clinical tests. However, there is some evidence suggesting that oxygen demand during daily activities may not be correctly estimated by such tests, when compared with continuous ambulatory oximetry. The authors describe the results of a study aiming to evaluate the clinical relevance of a home telemonitoring system in LTOT optimization. SUBJECTS AND METHODS: Thirty-five chronic respiratory failure patients were monitored in real time with an oximeter sensor and an accelerometer...
July 2014: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
https://www.readbyqxmd.com/read/24739130/ambulatory-pulse-oximetry-monitoring-in-japanese-copd-outpatients-not-receiving-oxygen-therapy
#10
Seigo Minami, Suguru Yamamoto, Yoshitaka Ogata, Takeshi Nakatani, Yoshiko Takeuchi, Masanari Hamaguchi, Taro Koba, Kiyoshi Komuta
BACKGROUND: It remains unknown whether desaturation profiles during daily living are associated with prognosis in patients with chronic obstructive pulmonary disease (COPD). Point measurements of resting oxygen saturation by pulse oximetry (SpO2) and partial pressure of arterial oxygen (PaO2) are not sufficient for assessment of desaturation during activities of daily living. A small number of studies continuously monitored oxygen saturation throughout the day during activities of daily living in stable COPD patients...
2014: Multidisciplinary Respiratory Medicine
https://www.readbyqxmd.com/read/24656908/accuracy-of-portable-polygraphy-for-the-diagnosis-of-sleep-apnea-in-multiple-system-atrophy
#11
COMPARATIVE STUDY
Wassilios G Meissner, Olivier Flabeau, Paul Perez, Jacques Taillard, Fabienne Marquant, Sandrine Dupouy, François Tison, Pierre Philip, Imad Ghorayeb
OBJECTIVE: To assess the diagnostic accuracy of portable polygraphy (PG) for the detection of sleep apnea (SA) in multiple system atrophy (MSA). METHODS: Thirty consecutive patients with probable MSA underwent PG (overnight recording of nasal flow, thoracic/abdominal movements and pulse oximetry), followed 4 weeks later by full polysomnography (PSG) (reference standard). The accuracy of PG was first assessed using the same threshold as for PSG (apnea-hypopnea index [AHI]≥5), then for all possible AHI thresholds using the area under the receiver operating characteristics (AUROC) curve...
April 2014: Sleep Medicine
https://www.readbyqxmd.com/read/24621622/ambulatory-and-central-haemodynamics-during-progressive-ascent-to-high-altitude-and-associated-hypoxia
#12
M G Schultz, R E D Climie, J E Sharman
High-altitude hypoxia causes major cardiovascular changes, which may result in raised resting brachial blood pressure (BP). However, the effect of high-altitude hypoxia on more sensitive measures of BP control (such as 24 h ambulatory BP and resting central BP) is largely unknown. This study aimed to assess this and compare high-altitude responses to resting brachial BP, as well as determine the haemodynamic correlates of acute mountain sickness (AMS) during a progressive trekking ascent to high-altitude...
December 2014: Journal of Human Hypertension
https://www.readbyqxmd.com/read/24488570/is-continuous-positive-airway-pressure-necessarily-an-everyday-therapy-in-patients-with-obstructive-sleep-apnoea
#13
Valentina A Rossi, Esther I Schwarz, Konrad E Bloch, John R Stradling, Malcolm Kohler
There are limited data on the evolution of obstructive sleep apnoea (OSA) during continuous positive airway pressure (CPAP) therapy and whether this treatment is required every night. 125 OSA patients with an original oxygen desaturation index (ODI) >10 events per hour, established on CPAP, were asked to withdraw CPAP for four nights and performed ambulatory nocturnal pulse oximetry on the fourth night of CPAP withdrawal. An ODI >10 events per hour during pulse oximetry was considered to indicate persistent OSA...
May 2014: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/24413351/postoperative-vascular-complications-in-unrecognised-obstructive-sleep-apnoea-posa-study-protocol-an-observational-cohort-study-in-moderate-to-high-risk-patients-undergoing-non-cardiac-surgery
#14
Matthew T V Chan, Chew-Yin Wang, Edwin Seet, Stanley Tam, Hou-Yee Lai, Stuart Walker, Timothy G Short, Richard Halliwell, Frances Chung
INTRODUCTION: Emerging epidemiological data suggest that obstructive sleep apnoea (OSA) is common in the general surgical population. Unfortunately, the majority of these patients are unrecognised and untreated at the time of surgery. There is substantial biological rationale to indicate that patients with unrecognised OSA are at a higher risk of postoperative vascular events. However, the extent of this morbidity is currently unknown. We have initated the postoperative vascular complications in the unrecognised obstructive sleep apnoea (POSA) study to determine the associations between OSA, nocturnal hypoxia and major postoperative vascular events in 1200 moderate-to-high risk patients undergoing major non-cardiac surgery...
2014: BMJ Open
https://www.readbyqxmd.com/read/24251722/clinical-use-of-pulse-oximetry-official-guidelines-from-the-thoracic-society-of-australia-and-new-zealand
#15
REVIEW
Jeffrey J Pretto, Teanau Roebuck, Lutz Beckert, Garun Hamilton
Pulse oximetry provides a simple, non-invasive approximation of arterial oxygenation in a wide variety of clinical settings including emergency and critical-care medicine, hospital-based and ambulatory care, perioperative monitoring, inpatient and outpatient settings, and for specific diagnostic applications. Pulse oximetry is of utility in perinatal, paediatric, adult and geriatric populations but may require use of age-specific sensors in these groups. It plays a role in the monitoring and treatment of respiratory dysfunction by detecting hypoxaemia and is effective in guiding oxygen therapy in both adult and paediatric populations...
January 2014: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/24172173/quantifying-respiratory-complications-post-adenotonsillectomy-in-patients-with-normal-or-inconclusive-overnight-oximetry
#16
Terence T N Lee, Claire E Lefebvre, Nathalie E Gans, Sam J Daniel
BACKGROUND: Children with sleep-disordered breathing (SDB) are at risk of developing post-operative respiratory complications following adenotonsillectomy (T&A). Our goal was to describe and quantify these complications following T&A in children with clinical SDB but with a pre-operative overnight home oximetry score of "normal/inconclusive" (McGill Oximetry Score (MOS) of 1), and to determine whether these children could safely undergo surgery in peripheral hospitals or outpatient surgical centers...
2013: Journal of Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/24161677/a-6mwt-index-to-predict-o2-flow-correcting-exercise-induced-spo2-desaturation-in-ild
#17
Josuel Ora, Luigino Calzetta, Gabriella Pezzuto, Lucia Senis, Gregorino Paone, Alessia Mari, Silvia Portalone, Paola Rogliani, Ermanno Puxeddu, Cesare Saltini
INTRODUCTION: Ambulatory oxygen (O2) is prescribed to interstitial lung disease (ILD) patients with mild hypoxemia, breathlessness and dyspnea on exertion. Oxygen titration is generally done with the 6 minute walk test (6MWT) to determine the O2 flow preventing oxygen saturation by pulse oximetry (SpO2) from falling below 88%. His study was designed to generate a 6MWT index predicting the O2 flow allowing completion of the 6MWT without oxygen desaturation. METHODS: Oxygen titration data from a group of 66 ILD patients and 30 controls, were used to generate the algorithm determining an index (O2-GAP) predicting oxygen flow required to complete a 6MWT without desaturation below 88%...
December 2013: Respiratory Medicine
https://www.readbyqxmd.com/read/24133852/perioperative-changes-in-oxygen-saturation-after-ambulatory-laparoscopic-cholecystectomy-a-retrospective-analysis
#18
Michael Seneca, Mark Zapp, Martha Seneca
In the ambulatory surgical setting, patients may present with grossly abnormal oxygen saturation (Spo2) readings that, along with other disease pathology, make referral to an inpatient facility a straightforward decision. Patients presenting with unexplained slightly abnormal Spo2 readings might make evaluation as an appropriate candidate for the ambulatory setting more problematic. Little guidance is provided for these scenarios in current consensus documents, and minimal data exist regarding preoperative baseline Spo2 readings as a predictor for postoperative Spo2 readings after undergoing general anesthesia and surgery in the ambulatory care setting...
August 2013: AANA Journal
https://www.readbyqxmd.com/read/24120158/feasibility-of-unattended-home-polysomnography-in-children-with-sleep-disordered-breathing
#19
COMPARATIVE STUDY
Pablo E Brockmann, Jose Luis Perez, Ana Moya
OBJECTIVE: To investigate the technical feasibility of unattended polysomnography (HPSG) for diagnosis of obstructive sleep apnea (OSA) in children. METHODS: A single-night HPSG was performed on children referred to the pediatric respiratory laboratory. Non-interpretable HPSGs were defined as: recordings with (i) loss of ≥2 of the following channels: nasal flow, or thoraco-abdominal belts, or (ii) HPSG with less than 4 h of artifact-free recording time or (iii) less than 4 h SpO2 signal...
December 2013: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/23979778/big-endothelin-1-and-nitric-oxide-in-hypertensive-elderly-patients-with-and-without-obstructive-sleep-apnea-hypopnea-syndrome
#20
COMPARATIVE STUDY
Iara Felicio Anunciato, Rômulo Rebouças Lobo, Eduardo Barbosa Coelho, Waldiceu Aparecido Verri, Alan Luiz Eckeli, Paulo Roberto Barbosa Evora, Fernando Nobre, Júlio César Moriguti, Eduardo Ferriolli, Nereida Kilza da Costa Lima
BACKGROUND: The role of oxidative stress in hypertensive elderly patients with obstructive sleep apnea-hypopnea syndrome (OSAHS) is unknown. OBJECTIVE: The purpose was to evaluate the levels of big endothelin-1 (Big ET-1) and nitric oxide (NO) in elderly hypertensive patients with and without moderate to severe OSAHS. METHODS: Volunteers were hospitalized for 24 h. We obtained the following data: body mass index (BMI); 24-ambulatory blood pressure monitoring; and current medication...
October 2013: Arquivos Brasileiros de Cardiologia
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