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Ambulatory oximetry

Ana Espínola Rodríguez, Luis Lores Obradors, Neus Parellada Esquius, Felisa Rubio Muñoz, Neus Espinosa Gonzalez, Elisabet Arellano Marcuello
BACKGROUND AND OBJECTIVES: Obesity causes important alterations in the respiratory physiology like sleep obstructive apnoea (SOA) and obesity-hypoventilation syndrome (OHS), both associated with high morbidity and mortality. Also, these entities are clearly infradiagnosed and in the case of OHS the prevalence is unknown in the general obese population. To determine the prevalence of OHS in the population of patients with morbid obesity and to know the comorbidity related with OHS, the associated respiratory symptoms and the pulse oximetry alterations...
July 22, 2017: Medicina Clínica
Rhodri Saunders, Michel M R F Struys, Richard F Pollock, Michael Mestek, Jenifer R Lightdale
OBJECTIVE: To evaluate the effect of capnography monitoring on sedation-related adverse events during procedural sedation and analgesia (PSA) administered for ambulatory surgery relative to visual assessment and pulse oximetry alone. DESIGN AND SETTING: Systematic literature review and random effects meta-analysis of randomised controlled trials (RCTs) reporting sedation-related adverse event incidence when adding capnography to visual assessment and pulse oximetry in patients undergoing PSA during ambulatory surgery in the hospital setting...
June 30, 2017: BMJ Open
Tiago Maricoto, Eurico Alves Rodrigues Silva, Pedro Damião, José Mesquita Bastos
INTRODUCTION: Ambulatory blood pressure monitoring by automatic device is the best blood pressure evaluation method and sleep apnea syndrome is the leading cause of poor control. Oximetry allows screening these individuals but its usefulness has been poorly explored in Primary Health Care. The aim was to evaluate the blood pressure control at the office and with ambulatory blood pressure monitoring by automatic device and to relate it to sleep apnea syndrome. MATERIAL AND METHODS: We selected a sample of 50 participants, representative of 3036 hypertensive patients...
February 27, 2017: Acta Médica Portuguesa
Sunil Sharma, Umer Mukhtar, Colleen Kelly, Paul Mather, Stuart F Quan
PURPOSE: Sleep-disordered breathing is a common sleep disorder. Recent studies have shown that hospitalized obese patients have a high likelihood of unrecognized sleep-disordered breathing. However, no systematic large study has so far evaluated the outcomes of a screening program. This study provides demographic, clinical, and outcome data from a screening program at a tertiary care academic center. METHODS: Subjects were 5062 patients screened from March 2013 to July 2016...
October 2017: American Journal of Medicine
Dina Visca, Vicky Tsipouri, Letizia Mori, Ashi Firouzi, Sharon Fleming, Morag Farquhar, Elizabeth Leung, Toby M Maher, Paul Cullinan, Nick Hopkinson, Athol U Wells, Winston Banya, Jennifer A Whitty, Huzaifa Adamali, Lisa G Spencer, Piersante Sestini, Elisabetta A Renzoni
BACKGROUND: Fibrotic interstitial lung diseases (ILDs) are chronic and often progressive conditions resulting in substantial morbidity and mortality. Shortness of breath, a symptom often linked to oxygen desaturation on exertion, is tightly linked to worsening quality of life in these patients. Although ambulatory oxygen is used empirically in their treatment, there are no ILD-specific guidelines on its use. To our knowledge, no studies are available on the effects of ambulatory oxygen on day-to-day life in patients with ILD...
April 28, 2017: Trials
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
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
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
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
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
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...
October 2, 2014: BMC Pediatrics
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
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
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
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
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
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
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
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...
January 9, 2014: BMJ Open
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
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