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"Arterial Blood Gas" OR "ABG" OR "Venous Blood Gas" OR "VBG"

Carolina Bonfanti Mesquita, Caroline Knaut, Laura Miranda de Oliveira Caram, Renata Ferrari, Silmeia Garcia Zanati Bazan, Irma Godoy, Suzana Erico Tanni
OBJECTIVE: To determine the impact of adherence to long-term oxygen therapy (LTOT) on quality of life, dyspnea, and exercise capacity in patients with COPD and exertional hypoxemia followed for one year. METHODS: Patients experiencing severe hypoxemia during a six-minute walk test (6MWT) performed while breathing room air but not at rest were included in the study. At baseline and after one year of follow-up, all patients were assessed for comorbidities, body composition, SpO2, and dyspnea, as well as for anxiety and depression, having also undergone spirometry, arterial blood gas analysis, and the 6MWT with supplemental oxygen...
September 2018: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
Eric Ka Cheong Wong, Philip Cheuk Shing Lee, Saidul Ansary, Stephen Asha, Keith Hw Wong, Brendon Yee, Andrew T Ng
BACKGROUND: Many patients with acute exacerbations of chronic obstructive pulmonary disease (AECOPD) have type 2 respiratory failure. Often arterial blood gases (ABG) are not performed and correlation with venous blood gases (VBG) is controversial. The venous pH and bicarbonate (HCO3 ) are useful,1 but VBG PCO2 (PvCO2 ) is considered too unpredictable. We examined the utility of VBGs in this cohort of patients. PATIENTS AND METHODS: A prospective study of AECOPD patients with type 2 respiratory failure presenting to ED was performed...
December 4, 2018: Internal Medicine Journal
Dan-Dan Zhang, Gan Lu, Xuan-Feng Zhu, Ling-Ling Zhang, Jia Gao, Li-Cheng Shi, Jian-Hua Gu, Jian-Nan Liu
Background: Neural respiratory drive (NRD) using diaphragm electromyography through an invasive transesophageal multi-electrode catheter can be used as a feasible clinical physiological parameter in patients with chronic obstructive pulmonary disease (COPD) to provide useful information on the treatment response. However, it remains unknown whether the surface diaphragm electromyogram (EMGdi) could be used to identify the deterioration of clinical symptoms and to predict the necessity of hospitalization in acute exacerbation of COPD (AECOPD) patients...
December 5, 2018: Chinese Medical Journal
C Margarido, J Ferns, V Chin, T Ribeiro, B Nascimento, J Barrett, E Herer, S Halpern, L Andrews, G Ballatyne, M Chapmam, J Gomes, J Callum
BACKGROUND: A structured approach to hemorrhagic emergencies in obstetrics has gained popularity with the implementation of massive hemorrhage protocols. The trauma literature suggests that routine quality reviews should be in place to improve patient outcomes. The aim of this study was to develop quality indicators and assess compliance by the clinical team. METHODS: A multidisciplinary team set the institutional quality indicators for the massive hemorrhage protocol review...
November 3, 2018: International Journal of Obstetric Anesthesia
Jiaywei Tsauo, He Zhao, Xiaowu Zhang, Huaiyuan Ma, Mingshan Jiang, Ningna Weng, Xiao Li
OBJECTIVES: To evaluate the changes in arterial oxygenation after portal decompression in Budd-Chiari syndrome (BCS) patients with hepatopulmonary syndrome (HPS). METHODS: From June 2014 to June 2015, all patients with BCS who underwent balloon angioplasty or transjugular intrahepatic portosystemic shunt (TIPS) creation at our institution were eligible for inclusion in this study. Arterial blood gas analysis was performed with the patient in an upright position and breathing room air at 2-3 days and 1 and 3 months after the procedure...
November 30, 2018: European Radiology
Zhifeng Liu, Qingyu Liu, Gongfa Wu, Haigang Li, Yue Wang, Rui Chen, Cai Wen, Qin Ling, Zhengfei Yang, Wanchun Tang
Background: Utilize quantitative computed tomography (QCT) to detect and evaluate the severity of lung injury after successful cardiopulmonary resuscitation (CPR) in a porcine cardiac arrest (CA) model with different downtimes. Methods: Twenty-one male domestic pigs weighing 38±3 kg were randomized into 3 groups: the sham group (n=5), the ventricular fibrillation (VF) 5 min (VF5) group (n=8), and the VF 10 min (VF10) group (n=8). VF was induced and untreated for 5 (VF5 group) or 10 (VF10 group) min before the commencement of manual CPR...
October 2018: Quantitative Imaging in Medicine and Surgery
Hadil A Al Otair, Fayez Elshaer, Alaa Elgishy, Samar Z Nashwan, Aljohara S Almeneessier, Awad H Olaish, Ahmed S BaHammam
Background: Obesity hypoventilation syndrome (OHS) can be complicated by several cardiovascular conditions. We assessed the prevalence and factors associated with left ventricular diastolic dysfunction (LVDD) in patients with OHS. Methods: In this prospective observational study, all consecutive OHS patients referred to the sleep disorders clinic between January 2002 to December 2016 were included (n=113). Demographic data, echocardiography, sleep parameters, arterial blood gases (ABGs), and lung functions were recorded...
October 2018: Journal of Thoracic Disease
Emilija Lozo Vukovac, Kornelija Miše, Ivan Gudelj, Irena Perić, Darko Duplančić, Ivica Vuković, Zoran Vučinović, Mislav Lozo
OBJECTIVES: This study aimed to directly measure pH in the lungs, determine lactate dehydrogenase (LDH), C-reactive protein (CRP), and glucose levels in serum and bronchoalveolar aspirate, and identify bacterial pathogens from bronchoalveolar fluid during acute exacerbation of chronic obstructive pulmonary disease (AECOPD). METHODS: We performed an observational, analytical case-control study from February 2015 to March 2017. We included 84 patients with AECOPD and 42 with stable chronic obstructive pulmonary disease (COPD)...
November 29, 2018: Journal of International Medical Research
H W He, D W Liu, Y Long, X T Wang, C Yu, B Yao, R Zhang
Objective: The relationship of venous-to-arterial CO(2) difference(Pv-aCO(2))/arterial-central venous O(2) difference (Ca-vO(2)) ratio, peripheral perfusion index(PI) and lactate clearance(LC) were investigated during resuscitation in septic patients. And, the meaning of the combination PI and Pv-aCO(2)/Ca-vO(2) ratio to interpret incoherence of lactate clear was explored. Methods: The patients with sepsis were prospectively observed, who admitted to critically care medicine department of Peking Union Medical College Hospital...
December 1, 2018: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
Yu Si, Yubin Chen, Guo Xu, Ximing Chen, Wuhui He, Zhigang Zhang
OBJECTIVES/HYPOTHESIS: To investigate the simultaneous application of cartilage tympanoplasty combined with eustachian tube (ET) balloon dilatation in the treatment of adhesive otitis media (AdOM). STUDY DESIGN: Multicenter, prospective, double-blind, randomized, controlled clinical trial. METHODS: Patients with AdOM were randomly divided into four groups: control group (conservative treatment), ET balloon dilatation (ETBD) group, cartilage tympanoplasty (CT) group, and cartilage tympanoplasty combined with ET balloon dilatation (ETBD+CT) group...
November 28, 2018: Laryngoscope
(no author information available yet)
OBJECTIVEAvoiding decreases in brain tissue oxygenation (PbtO2) after traumatic brain injury (TBI) is important. How best to adjust PbtO2 remains unclear. The authors investigated the association between partial pressure of oxygen (PaO2) and PbtO2 to determine the minimal PaO2 required to maintain PbtO2 above the hypoxic threshold (> 20 mm Hg), accounting for other determinants of PbtO2 and repeated measurements in the same patient. They also explored the clinical utility of a novel concept, the brain oxygenation ratio (BOx ratio = PbtO2/PaO2) to detect overtreatment with the fraction of inspired oxygen (FiO2)...
October 1, 2018: Journal of Neurosurgery
Farshid R Bashar, Amir Vahedian-Azimi, Behrooz Farzanegan, Reza Goharani, Seyedpouzhia Shojaei, Sevak Hatamian, Seyed M M Mosavinasab, Masoum Khoshfetrat, Mohammad A K Khatir, Anna Tomdio, Andrew C Miller
OBJECTIVE: To determine if non-invasive oxygenation indices, namely peripheral capillary oxygen saturation (Sp O2 )/fraction of inspired oxygen (Fi O2 ) and partial pressure of alveolar oxygen (PA O2 )/Fi O2 may be used as effective surrogates for the partial pressure of arterial oxygen (Pa O2 )/Fi O2 . Also, to determine the Sp O2 /Fi O2 and PA O2 /Fi O2 values that correspond to Pa O2 /Fi O2 thresholds for identifying acute respiratory distress syndrome (ARDS) in patients following coronary artery bypass graft (CABG) surgery...
November 27, 2018: Journal of Cardiothoracic Surgery
Davoodabadi Abdoulhossein, Iman Taheri, Mohammad Ali Saba, Hossein Akbari, Shima Shafagh, Asemi Zataollah
There is association between lung contusion (lC) and a progressive inflammatory response. The protective effect of vitamin C and vitamin E, as strong free radical scavengers on favourite outcome of (LC) in animal models, has been confirmed. Design: to evaluate the effect of vitamins, E and C on arterial blood gas (ABG) and ICU stay, in (LC), with injury severity score (ISS) 18 ± 2, due to blunt chest trauma. Methods: This study was a randomized, double-blind, placebo-controlled clinical trial...
December 2018: Annals of Medicine and Surgery
Mit P Patel, Ali Ahmed, Tharini Gunapalan, Sean E Hesselbacher
Diabetic ketoacidosis (DKA) is a severe and too-common complication of uncontrolled diabetes mellitus. Acidosis is one of the fundamental disruptions stemming from the disease process, the complications of which are potentially lethal. Hydration and insulin administration have been the cornerstones of DKA therapy; however, adjunctive treatments such as the use of sodium bicarbonate and protocols that include serial monitoring with blood gas analysis have been much more controversial. There is substantial literature available regarding the use of exogenous sodium bicarbonate in mild to moderately severe acidosis; the bulk of the data argue against significant benefit in important clinical outcomes and suggest possible adverse effects with the use of bicarbonate...
November 15, 2018: World Journal of Diabetes
Sean S Lee, So Ran Kwon, Marilyn Ward, Wendy Jenkins, Sonia Souza, Yiming Li
OBJECTIVES: To assess two professional tooth bleaching products: Philips Zoom WhiteSpeed (PZW) and Ultradent Opalescence Boost PF (UOB); and to assess bleaching maintenance after use of Philips Sonicare power toothbrush (SDC) or manual toothbrush (MTB). METHODS: There was a randomized, parallel clinical trial. Eligible subjects were 18-75 years, with VITA Classical shade (VCS) of A3 on anterior teeth. Subjects were randomized to bleaching with PZW or UOB. Tooth color and shade were assessed using VITA EasyShade (VES), VCS, and VITA Bleachedguide (VBG)...
November 26, 2018: Journal of Esthetic and Restorative Dentistry
Jessica K Shang, Mahdi Esmaily, Aekaansh Verma, Olaf Reinhartz, Richard S Figliola, Tian-Yen Hsia, Jeffrey A Feinstein, Alison L Marsden
BACKGROUND: First-stage palliation of neonates with single-ventricle physiology is associated with poor outcomes and challenging clinical management. Prior computational modeling and in vitro experiments introduced the assisted bidirectional Glenn (ABG), which increased pulmonary flow and oxygenation over the bidirectional Glenn (BDG) and the systemic-to-pulmonary shunt in idealized models. In this study, we demonstrate that the ABG achieves similar performance in patient-specific models and assess the influence of varying shunt geometry...
November 21, 2018: Annals of Thoracic Surgery
Peng Chen, Yunxia Jin, Dongbing He, Junming Chen, Jiao Xu, Jingyin Zhao, Yibin Zhang, Fanyu Kong, Hongbo He, Jianda Shao
In this study, the realization of multiplexed volume Bragg gratings (VBGs) working as angle amplifiers in high power beam scanning system is theoretically and experimentally investigated. The design of the multiplexed VBG for the working wavelength of 1064 nm is described. We propose a cascaded multiplexed VBGs scheme that consists of 12 grating channels. Three 4-channel multiplexed VBGs were fabricated inside photo-thermo-refractive (PTR) glasses by multiple exposures and subsequent heat treatment. The test results show that this angle amplifier can achieve discrete angle deflection ranging from -45° to + 45°...
September 17, 2018: Optics Express
Hongbo Zhu, Xingchen Lin, Yawei Zhang, Jianwei Zhang, Biao Wang, Jinlong Zhang, Li Qin, Yongqiang Ning, Hao Wu
A dense spectral multiplexing structure based on the reflective volume Bragg gratings is introduced to realize the diode laser multiplexing with an ultra-narrow channel spacing of 1.5 nm. With the combination of polarization multiplexing and coarse spectral multiplexing, a diode laser source producing 2045 W power from an output fiber with a core diameter of 105 µm and NA of 0.2 is achieved at an injection current of 10 A. The electro-optical and optical-optical efficiency of the laser source is 42% and 76%, respectively...
September 17, 2018: Optics Express
Katrine B Buggeskov, Raluca G Maltesen, Bodil S Rasmussen, Munsoor A Hanifa, Morten A V Lund, Reinhard Wimmer, Hanne B Ravn
Cardiac surgery with cardiopulmonary bypass (CPB) causes an acute lung ischemia-reperfusion injury, which can develop to pulmonary dysfunction postoperatively. This sub-study of the Pulmonary Protection Trial aimed to elucidate changes in arterial blood gas analyses, inflammatory protein interleukin-6, and metabolites of 90 chronic obstructive pulmonary disease patients following two lung protective regimens of pulmonary artery perfusion with either hypothermic histidine-tryptophan-ketoglutarate (HTK) solution or normothermic oxygenated blood during CPB, compared to the standard CPB with no pulmonary perfusion...
November 21, 2018: Journal of Clinical Medicine
W-Z Pan, J Du, L-Y Zhang, J-H Ma
OBJECTIVE: To explore the roles of NF-kB in the development of lung injury after one-lung ventilation. MATERIALS AND METHODS: Eighteen Sprague-Dawley (SD) rats were randomly divided into 3 groups including control group, one-lung ventilation (OL) group and NF-kB inhibitor pyrrolidine dithiocarbamate (PDTC) group, with 6 rats in each group. Rats in OL and PDTC groups were used to establish one-lung ventilation model, and rats in PDTC group were subjected to intravenous injection of NF-kB specific inhibitor PDTC at 30 min before model construction...
November 2018: European Review for Medical and Pharmacological Sciences
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