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Pulse oximeter

M Satheesh Kumar, Ayush Lohiya, Viviktha Ramesh, Priyamadhaba Behera, Sarika Palepu, S A Rizwan
OBJECTIVES: To compare pulse oximetry and Ankle-Brachial Index (ABI) with duplex ultrasonography as reference standard to determine the diagnostic accuracy for screening asymptomatic PVD in type 2 diabetes mellitus. METHODS: This cross-sectional study was conducted in 2012 at tertiary hospital in Madurai among diabetic patients attending the medicine outpatient department (OPD). Type 2 Diabetes Mellitus patients, asymptomatic with regards to symptoms and signs of PVD, aged above 40 years were included...
August 2016: Journal of the Association of Physicians of India
Toshiyuki Ohya, Ryo Yamanaka, Hayato Ohnuma, Masahiro Hagiwara, Yasuhiro Suzuki
BACKGROUND: Some endurance athletes exhibit exercise-induced arterial hypoxemia during high-intensity exercise. Inhalation of hyperoxic gas during exercise has been shown to counteract this exercise-associated reduction in hemoglobin oxygen saturation (SaO2), but the effects of hyperoxic gas inhalation on performance and SaO2 during high-intensity intermittent exercise remain unclear. This study investigated the effects of hyperoxic gas inhalation on performance and SaO2 during high-intensity intermittent cycling exercise...
December 2016: Sports Medicine—Open
Wei-Te Wu, Su-Shan Tsai, Yu-Jen Lin, Ming-Hsiu Lin, Trong-Neng Wu, Tung-Sheng Shih, Saou-Hsing Liou
BACKGROUND: Professional drivers' work under conditions predisposes them for development of sleep-disordered breathing (SDB) and cardiovascular disease (CVD). However, the effect of SDB on CVD risk among professional drivers has never been investigated. A cohort study was used to evaluate the effectiveness of overnight pulse oximeter as a sleep apnea screening tool to assess the 8-year risk of CVD events. METHODS: The Taiwan Bus Driver Cohort Study (TBDCS) recruited 1014 professional drivers in Taiwan since 2005...
September 29, 2016: International Journal of Cardiology
Sezin Unal, Ebru Ergenekon, Selma Aktas, Serdar Beken, Nilgun Altuntas, Ebru Kazanci, Ferit Kulali, Ibrahim M Hirfanoglu, Esra Onal, Canan Turkyilmaz, Esin Koc, Yildiz Atalay
BACKGROUND: Perfusion index (PI) is becoming a part of clinical practice in neonatology to monitor peripheral perfusion noninvasively. Hemodynamic and respiratory changes occur in newborns during the transition period after birth in which peripheral perfusion may be affected. Tachypnea is a frequent symptom during this period. While some tachypneic newborns get well in less than 6 h and diagnosed as "delayed transition", others get admitted to intensive care unit which transient tachypnea of newborn (TTN) being the most common diagnosis among them...
October 7, 2016: BMC Pediatrics
Leonard A Temme, Paul St Onge, Joseph Bleiberg
INTRODUCTION: Physiological and emotional stressors increase symptoms of concussion in recently injured individuals and both forms of stress-induced symptoms in people recovering from mild traumatic brain injury (mTBI), but who are asymptomatic when not stressed or are at rest. METHODS: Healthy asymptomatic adults (25.0 ± 5.1 years) with a history of mTBI (n = 36) and matched healthy controls (HC) (n = 36) with no mTBI history were exposed to three levels of normobaric hypoxic stress generated with the Reduced Oxygen Breathing Device (ROBD) (Environics, Inc...
2016: Frontiers in Neurology
Ahmed Hasanin, Sabah Abdel Raouf Mohamed, Akram El-Adawy
Pain is a common and undertreated problem in critically ill patients. Pain assessment in critically ill patients is challenging and relies on complex scoring systems. The aim of this work was to find out the possible role of the perfusion index (PI) measured by a pulse oximeter (Masimo Radical 7; Masimo Corp., Irvine, CA, USA) in pain assessment in critically ill patients. A prospective observational study was carried out on 87 sedated non-intubated patients in a surgical intensive care unit. In addition to routine monitoring, a Masimo pulse oximeter probe was used for PI measurement...
September 24, 2016: Journal of Clinical Monitoring and Computing
Sharat C Pani, Ghazi S AlAnazi, Abdulrahman AlBaragash, Mohammad AlMosaihel
AIMS AND OBJECTIVES: Parents play an important role in the dental behavior of a child patient. This study aimed to assess the effect of parental presence on the behavior of the child and objectively measure the behavior using pulse oximetry. MATERIALS AND METHODS: The study was registered with the clinical trials registry of the National Institutes of Health (NCT02619981). The children were divided into three groups, those who had no accompanying parent, those accompanied by their fathers, and those accompanied by their mothers...
August 2016: Journal of International Society of Preventive & Community Dentistry
O O Olujimi, G R E E Ana, O O Ogunseye, V T Fabunmi
Charcoal production is often accompanied with gaseous and particulate emission into the atmosphere and occupationally exposed workers could be affected. This cross sectional comparative study was carried out to assess the levels of carbon monoxide (CO), carbon dioxide (CO2), sulphur dioxide (SO2), nitrogen dioxide (NO2) and particulate matter (PM2.5) generated during the phases of charcoal production and their relationship with certain biomarkers among charcoal workers (subjects) and non-charcoal workers (controls) such as carboxyhaemoglobin (COHb), forced expiratory volume in the first second of expiration (FEV1), peak expiratory flow rate (PEFR) and body mass index (BMI) in Igbo-Ora, Oyo State and Alabata, Ogun State, which are two of the major hubs of charcoal production in South Western Nigeria...
2016: SpringerPlus
Jing Zhou, Yi Han
OBJECTIVES: To analyze the ability of pleth variability index (PVI) and respiratory system compliance (RSC) on evaluating the hemodynamic and respiratory effects of positive end expiratory pressure (PEEP), then to direct PEEP settings in mechanically ventilated critical patients. METHODS: We studied 22 mechanically ventilated critical patients in the intensive care unit. Patients were monitored with classical monitor and a pulse co-oximeter, with pulse sensors attached to patients' index fingers...
2016: SpringerPlus
Alistair Robertson, Amin Rahemtulla
A young man with a rare unstable haemoglobinopathy presented with a high fever, worsening shortness of breath and abdominal pain. At triage his pulse oximetry (SpO2) suggested that his blood oxygen saturation was 84% at room air. However, an arterial blood gas (ABG) oxygen saturation reading (SaO2) was 100%. The significant disparity between the two measurements demonstrates that using pulse oximetry in some unstable haemoglobinopathies may significantly underestimate the actual reading. This error is most probably due to the structural differences in the variant haemoglobin causing light to be absorbed at a different wavelength beyond the normal range of the oximeter...
2016: BMJ Case Reports
David Van Laere, John M O'Toole, Michiel Voeten, Joanne McKiernan, Geraldine B Boylan, Eugene Dempsey
OBJECTIVE: To develop new quantitative features for the Perfusion Index signal recorded continuously over the first 24 hours of life in a cohort of extremely low gestational age newborns and to assess the association of these features with normal and adverse short-term outcome. STUDY DESIGN: A cohort study of extremely low gestational age newborns. Adverse outcome was defined as early mortality before 72 hours of life, acquired severe periventricular-intraventricular hemorrhage, or severe cystic leukomalacia...
September 1, 2016: Journal of Pediatrics
K K Miller, K S Vig, E M Goetz, G Spicer, A J Yang, J S Hokanson
OBJECTIVE: This study evaluated pulse oximetry screening (POS) for critical congenital heart disease (CCHD) in planned out of hospital births with special attention to births in Plain communities (Amish, Mennonite and similar). STUDY DESIGN: Wisconsin out of hospital births in 2013 and 2014 were evaluated. Care providers were supplied with and trained in the use of pulse oximeters for CCHD screening. State records were reviewed to identify deaths and hospital admissions due to CCHD in this population...
September 1, 2016: Journal of Perinatology: Official Journal of the California Perinatal Association
Dragana Milutinović, Gordana Repić, Branimirka Aranđelović
OBJECTIVES: The aim of this study was to assess the level of knowledge on pulse oximetry among nurses. Understanding this is important because insufficient knowledge can lead to misinterpretation of pulse oximetry readings and consequently compromise patient safety. RESEARCH METHODOLOGY: The study was cross-sectional and included a sample of 198 nurses. A modified questionnaire by Kiekkas et al. was used as the research tool. SETTING: Intensive care units, anaesthesiology and emergency departments in two tertiary health care institutions in Serbia...
December 2016: Intensive & Critical Care Nursing: the Official Journal of the British Association of Critical Care Nurses
Jihene Methlouthi, Nabiha Mahdhaoui, Manel Bellaleh, Aida Guith, Douha Zouari, Hedia Ayech, Sonia Nouri, Hassen Séboui
INTRODUCTION: Congenital heart defects are the most common congenital malformations in the newborn with an estimated incidence ranging between 6-9 ‰. In Tunisia, this incidence reaches 1.9 ‰. This can be explained by misdiagnosed cases. In fact, the diagnosis is based mainly on clinical examination which allows making the diagnosis only in 50 in 75 % of the cases. Several studies showed the interest of pulse oximetry oximeter in the screening of cyanogenic and duct dependent congenital heart diseases...
March 2016: La Tunisie Médicale
Anirudh Krishnamohan, Viraj Siriwardana, Justin J Skowno
BACKGROUND: Peripheral vasodilation is a well-recognized side effect of general anesthesia, and induces changes in the amplitude of the pulse plethysmograph (PPG) waveform. This can be continuously quantitaed using the Perfusion Index (PI), a ratio of the pulsatile to nonpulsatile signal amplitude in the PPG waveform. We hypothesized that the perfusion index would rise with the induction of anesthesia in children, and fall with emergence, and performed a prospective, observational study to test this...
November 2016: Paediatric Anaesthesia
G Gokulu, H Bilgen, H Ozdemir, A Sarioz, A Memisoglu, K Gucuyener, E Ozek
AIM: We evaluated the short-term effect of repeated pain exposure on the pain responses of newborn infants using different pain assessment methods, as this area had been under-researched. METHODS: We compared 20 term, large for gestational age infants and 40 term, appropriate for gestational age controls. All had undergone a heel stick for a newborn screening test just before discharge, but the larger babies had also undergone at least other five painful stimuli prior to that...
November 2016: Acta Paediatrica
Samir M Kendale, Jeanna D Blitz
STUDY OBJECTIVE: Obese patients regularly present for surgery and have greater hypoxemia risk. This study aimed to identify the risk and incidence of intraoperative hypoxemia with increasing body mass index (BMI). DESIGN: This was a retrospective cohort study. SETTING: Operating room. PATIENTS: A total of 15,238 adult patients who underwent general anesthesia for elective noncardiac surgery at a single large urban academic institution between January 2013 and December 2014...
September 2016: Journal of Clinical Anesthesia
Elspeth Hulse, Fathima Shihana, Nicholas A Buckley
INTRODUCTION: In Asia methemoglobinemia (MetHb) is commonly caused through self-poisoning with the pesticide propranil. MetHb can cause hypoxia, coma and death, but usually responds to methylene blue. It is therefore vital to have accurate methods to measure blood MetHb to guide appropriate treatments. The gold standard to measure MetHb utilizes a spectrophotometer, but recent bedside tests have been developed e.g., pulse co-oximeter probe and blood color chart. METHODS: Nine propanil poisoned patients had data collected from hospitals in Sri Lanka during 2008...
November 2016: Clinical Toxicology
Vadim N Dedov, Irina V Dedova
BACKGROUND: Sustained cardiac rehabilitation is the key intervention in the prevention and treatment of many human diseases. However, implementation of exercise programs can be challenging because of early fatigability in patients with chronic diseases, overweight individuals, and aged people. Current methods of fatigability assessment are based on subjective self-reporting such as rating of perceived exertion or require specialized laboratory conditions and sophisticated equipment. A practical approach allowing objective measurement of exercise-induced fatigue would be useful for the optimization of sustained delivery of cardiac rehabilitation to improve patient outcomes...
2016: JMIR Research Protocols
Da Woon Jung, Su Hwan Hwang, Yu Jin Lee, Do-Un Jeong, Kwang Suk Park
BACKGROUND: Nocturnal hypoxemia, characterized by abnormally low oxygen saturation levels in arterial blood during sleep, is a significant feature of various pathological conditions. The oxygen desaturation index, commonly used to evaluate the nocturnal hypoxemia severity, is acquired using nocturnal pulse oximetry that requires the overnight wear of a pulse oximeter probe. OBJECTIVES: This study aimed to suggest a method for the unconstrained estimation of the oxygen desaturation index...
2016: Respiration; International Review of Thoracic Diseases
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