keyword
MENU ▼
Read by QxMD icon Read
search

ABG

keyword
https://www.readbyqxmd.com/read/28193496/development-of-a-colorimetric-assay-for-glycosynthases
#1
Marc R Hayes, Kevin Bochinsky, Lisa S Seibt, Lothar Elling, Jörg Pietruszka
The synthesis of glycosidic structures by catalysis via glycosynthases has gained much interest due to the potential high product yields and specificity of the enzymes. Nevertheless, the characterisation and implementation of new glycosynthases is greatly hampered by the lack of high-throughput methods for reaction analysis and screening of potential glycosynthase variants. Fluoride detection, via silyl ether chemosensors, has recently shown high potential for the identification of glycosynthase mutants in a high-throughput manner, though limited by the low maximal detection concentration...
February 10, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/28176180/prevention-of-hypoxemia-during-apnea-testing-a-comparison-of-oxygen-insufflation-and-continuous-positive-airway-pressure
#2
Andreas H Kramer, Philippe Couillard, Ryan Bader, Peter Dhillon, Demetrios J Kutsogiannis, Christopher J Doig
BACKGROUND: Apnea testing is an essential step in the clinical diagnosis of brain death. Current international guidelines recommend placement of an oxygen (O2) insufflation catheter into the endotracheal tube to prevent hypoxemia, but use of a continuous positive airway pressure (CPAP) valve may be more effective at limiting arterial partial pressure of O2 (PO2) reduction. METHODS: We performed a multicenter study assessing consecutive apnea tests in 14 intensive care units (ICUs) in two cities utilizing differing protocols...
February 7, 2017: Neurocritical Care
https://www.readbyqxmd.com/read/28171738/analysis-of-audiometric-outcomes-following-combined-middle-cranial-fossa-transmastoid-approaches-for-spontaneous-cerebrospinal-fluid-otorrhea
#3
Shawn M Stevens, Ryan Crane, Myles L Pensak, Ravi N Samy
Outcome Objectives To (1) explore audiometric outcomes following use of a combined transmastoid/middle cranial fossa (TM-MCF) approach in the treatment of spontaneous cerebrospinal fluid (CSF) otorrhea and (2) determine the influence of dehiscence location and reconstructive methodology on audiometric outcomes. Study Design Case series with chart review. Setting Tertiary care center. Subjects and Methods Adults with spontaneous CSF otorrhea were reviewed from 2007 to 2016 if they underwent combined TM-MCF. Definitive audiometric evaluations were performed at least 3 months postoperatively...
February 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28159040/recombinant-human-platelet-derived-growth-factor-bb-versus-autologous-bone-graft-in-foot-and-ankle-fusion-a-systematic-review-and-meta-analysis
#4
Han Sun, Pei-Pei Lu, Ping-Hui Zhou, Si-Wei Sun, Hong-Tao Zhang, Yi-Jie Liu, Xu Yang, Xiao-Feng Shen, Hui-Lin Yang
Today, autogenous bone graft (ABG) is still considered as the gold standard for joint fusion. Recombinant human platelet-derived growth factor-BB (rhPDGF-BB) which is of chemotactic and mitogenic to mesenchymal stem cells and possesses outstanding osteogenetic potentials has been used for ankle and foot fusion in recent years. The goal of this article is to evaluate the safety and efficacy of rhPDGF-BB versus ABG in foot and ankle fusion. The PubMed MEDLINE, EMBASE, Web of Science, and Cochrane Library were systematic searched...
March 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28158980/early-exposure-to-hyperoxia-and-mortality-in-critically-ill-patients-with-severe-traumatic-injuries
#5
Derek W Russell, David R Janz, William L Emerson, Addison K May, Gordon R Bernard, Zhiguo Zhao, Tatsuki Koyama, Lorraine B Ware
BACKGROUND: Hyperoxia is common early in the course of resuscitation of critically ill patients. It has been associated with mortality in some, but not all, studies of cardiac arrest patients and other critically ill cohorts. Reasons for the inconsistency are unclear and may depend on unmeasured patient confounders, the timing and duration of hyperoxia, population characteristics, or the way that hyperoxia is defined and measured. We sought to determine whether, in a prospectively collected cohort of mechanically ventilated patients with traumatic injuries with and without head trauma, higher maximum partial pressure of arterial oxygen (PaO2) within 24 hours of admission would be associated with increased risk of in-hospital mortality...
February 3, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28140667/incidence-of-palatal-fistula-at-time-of-secondary-alveolar-cleft-reconstruction
#6
Vikram A Shankar, Alison Snyder-Warwick, Gary B Skolnick, Albert S Woo, Kamlesh B Patel
OBJECTIVE:   We aim to establish consistent time points for evaluating palatal fistula incidence to standardize reporting practices and clarify prospective literature. DESIGN:   An institutional retrospective chart review was conducted on 76 patients with unilateral or bilateral complete cleft lip and palate who underwent secondary alveolar bone grafting between 2006 and 2015. MAIN OUTCOME MEASURES:   Early fistula incidence rates were reported prior to maxillary expansion, and late fistula rates were reported at the time of alveolar bone grafting...
January 31, 2017: Cleft Palate-craniofacial Journal
https://www.readbyqxmd.com/read/28126356/efficacy-comparison-of-accell-evo3%C3%A2-and-grafton%C3%A2-demineralized-bone-matrix-putties-against-autologous-bone-in-a-rat-posterolateral-spine-fusion-model
#7
Antonio T Brecevich, Paul D Kiely, B Victor Yoon, Joseph T Nguyen, Frank P Cammisa, Celeste Abjornson
BACKGROUND CONTEXT: Spinal fusion procedures are intended to stabilize the spinal column for a multitude of disorders including abnormal curvature, traumatic instability, degenerative instability, and damage from infections or tumors. As an aid in the bone healing response, bone graft materials are utilized to bridge joints for arthrodesis and promote unions in pseudoarthrosis. Currently, the gold standard for stabilizing fusion masses in spinal procedures involves utilizing the osteogenic, osteoinductive, and osteoconductive properties of autologous iliac crest cortico-cancellous bone...
January 23, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28106625/long-term-hearing-results-after-ossiculoplasty
#8
Matthew D Cox, Aaron Trinidade, James Shep Russell, John L Dornhoffer
OBJECTIVES: To determine if the OOPS index is predictive of long-term hearing results after ossiculoplasty. STUDY DESIGN: Case series with retrospective chart review. SETTING: Tertiary care otology practice. PATIENTS: Adult and pediatric patients (3-88 years of age). INTERVENTIONS: Ossiculoplasty with cartilage tympanoplasty, with or without mastoidectomy. OUTCOME MEASURES: Primary outcome measures included short-term hearing results (pure-tone average air-bone gap [PTA-ABG] measured between 60 days and 1 year after surgery), long-term hearing results (PTA-ABG measured ≥5 years after surgery), and the rate of successful ABG closure to ≤20 dB...
January 18, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28088126/severe-hypoalbuminemia-and-steatohepatitis-leading-to-death-in-a-young-vegetarian-female-8-months-after-mini-gastric-bypass-a-case-report
#9
Mohammad Kermansaravi, Mohammad Reza Abdolhosseini, Ali Kabir, Abdolreza Pazouki
BACKGROUND: Hypoalbuminemia is an important complication after Mini Gastric Bypass (MGB) and is more frequent in vegetarians, diabetic nephropathy, and alcoholic and liver disease patients. The patients must be followed in regular intervals and serum albumin must be checked in every visit after MGB. Hypoalbuminemia must be prevented by good protein regimes. CASE SUMMARY: A 29 years old female was admitted 8 month after Laparoscopic Mini Gastric Bypass with malaise, dyspnea, icter, nausea, vomiting, diarrhea and edema of extremities from 2 weeks before admission...
December 11, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28078984/rasburicase-induced-methemoglobinemia-in-a-patient-with-glucose-6-phosphate-dehydrogenase-deficiency
#10
Maliha Khan, Shilpa Paul, Saad Farooq, Thein Hlaing Oo, Priya Ramshesh, Nitin Jain
BACKGROUND: Rasburicase is commonly used in patients with hematologic malignancies for tumor lysis syndrome prophylaxis and management. Methemoglobinemia is a serious rare adverse effect of rasburicase, more common in patients with G6PD deficiency. Prompt diagnosis and appropriate management of this condition can make the difference between successful recovery and significant morbidity. Here we discuss the link of rasburicase with methemoglobinemia and the pathophysiology behind increased incidence of this side effect in G6PD deficient patients...
January 11, 2017: Current Drug Safety
https://www.readbyqxmd.com/read/28074800/effectiveness-of-ventilation-of-nondependent-lung-for-a-brief-period-in-improving-arterial-oxygenation-during-one-lung-ventilation-a-prospective-study
#11
Keerthi Chigurupati, Suneel Puthuvassery Raman, Unnikrishnan Koraparambil Pappu, Unnikrishnan Madathipat
BACKGROUND: Hypoxemia is common during one-lung ventilation(OLV), predominantly due to transpulmonary shunt. None of the strategies tried showed consistent results. We evaluated the effectiveness of ventilating the operated, non-dependent lung (NDL) with small tidal volumes in improving the oxygenation during OLV. METHODS: 30 ASA 1 and 2 patients undergoing elective, open thoracotomy were studied. After standard induction of anesthesia, lung seperation was acheived with left sided DLT...
January 2017: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/28040085/upper-limb-non-unions-treated-with-bmp-7-efficacy-and-clinical-results
#12
Rahul Singh, Sabri Bleibleh, Nikolaos K Kanakaris, Peter V Giannoudis
The management of upper limb non-unions can be challenging and often with unpredictable outcomes. In this study we present our experience with the use of BMP-7 in the treatment of upper limb non-unions. Between 2004 and 2011 all consecutive patients who were treated with BMP-7 were followed up prospectively until fracture union. Fracture union was assessed with regular radiological and clinical assessment. At the final follow up clinical assessment included the short Disabilities of the Arm, Shoulder and Hand (DASH) score...
December 2016: Injury
https://www.readbyqxmd.com/read/28034533/audiological-features-in-congenital-bony-atresia-of-external-auditory-canal-with-temporal-mandibular-joint-retroposition
#13
Ran Ren, Shouqin Zhao, Danni Wang, Lin Yang, Zhonglin Liu, Ying Li, Chenyi Wei
OBJECTIVES: To facilitate the diagnosis, treatment and surgical options for congenital bony atresia of external auditory canal (EAC) with temporal-mandibular joint (TMJ) retroposition by analyzing its audiological features and the morphology of temporal bone on CT scan. MATERIALS AND METHODS: Two cohorts of patients with congenital EAC bony atresia with (n=23) or without (n=21) TMJ retroposition were recruited from September 2012 to July 2014 at Beijing Tongren Hospital, Capital Medical University...
October 3, 2016: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/28031153/surgical-management-and-hearing-outcome-of-traumatic-ossicular-injuries
#14
Stefan Delrue, Nicolas Verhaert, Joost van Dinther, Andrzej Zarowski, Thomas Somers, Christian Desloovere, Erwin Offeciers
OBJECTIVE: The purpose of this study was to investigate etiological, clinical, and pathological characteristics of traumatic injuries of the middle ear ossicular chain and to evaluate hearing outcome after surgery. MATERIAL AND METHODS: Thirty consecutive patients (31 ears) with traumatic ossicular injuries operated on between 2004 and 2015 in two tertiary referral otologic centers were retrospectively analyzed. Traumatic events, clinical features, ossicular lesions, treatment procedures, and audiometric results were evaluated...
December 2016: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/28017167/effects-of-different-levels-of-end-expiratory-pressure-on-hemodynamic-respiratory-mechanics-and-systemic-stress-response-during-laparoscopic-cholecystectomy
#15
Oznur Sen, Yasemin Erdogan Doventas
OBJECTIVE: General anesthesia causes reduction of functional residual capacity. And this decrease can lead to atelectasis and intrapulmonary shunting in the lung. In this study we want to evaluate the effects of 5 and 10cmH2O PEEP levels on gas exchange, hemodynamic, respiratory mechanics and systemic stress response in laparoscopic cholecystectomy. METHODS: American Society of Anesthesiologist I-II physical status 43 patients scheduled for laparoscopic cholecystectomy were randomly selected to receive external PEEP of 5cmH2O (PEEP 5 group) or 10cmH2O PEEP (PEEP 10 group) during pneumoperitoneum...
January 2017: Brazilian Journal of Anesthesiology
https://www.readbyqxmd.com/read/27999999/cartilage-island-on-stapes-autologous-porp-in-the-hypoventilated-middle-ear
#16
Jeanette Hess-Erga, Bart Lambertus Henricus Jozef Engelen, Flemming Slinning Vassbotn
The most common technique in sound restoration of the middle ear is prosthetic surgery. Hypoventilation of the middle ear may cause adhesive otitis or atelectasis resulting in a higher risk of prosthetic extrusion rate and recurrence of the underlying cholesteatoma. We report long-term results using an island of tragal cartilage as an autologous PORP in selected patients with poor middle ear ventilation. Retrospective chart reviews were performed for procedures involving 52 patients between year 2000 and 2009...
December 20, 2016: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/27966508/comparative-evaluation-of-platelet-rich-fibrin-and-autogenous-bone-graft-for-the-treatment-of-infrabony-defects-in-chronic-periodontitis-clinical-radiological-and-surgical-reentry
#17
Sneha Galav, Kabbur Thippanna Chandrashekar, Rohit Mishra, Vandana Tripathi, Richa Agarwal, Ankit Galav
CONTEXT: Both intraoral autogenous bone grafting (ABG) and platelet-rich fibrin (PRF) offer a useful treatment modality for periodontal regeneration of intrabony defects (IBDs). However, predictable regeneration in patients with severe attachment loss is a challenge to the practitioners. AIM: The aim of this study was to compare the clinical efficacy of PRF with ABG for the treatment of IBDs in chronic periodontitis. SETTINGS AND DESIGN: This is a randomized controlled trial...
September 2016: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/27942599/fibrinogen-based-collagen-fleece-graft-myringoplasty-for-traumatic-tympanic-membrane-perforation
#18
Seung Hyo Choi, Hyoung Yong Song, Chan Il Song
BACKGROUND AND OBJECTIVES: The aim of this study was to investigate how fibrinogen-based collagen fleece (Tachocomb®) graft myringoplasty (FCGM), performed under microscopic guidance, improves both hearing and tympanic membrane tissue repair in patients with traumatic tympanic membrane perforation (TMP). SUBJECTS AND METHODS: Between August 2009 and March 2015, a total of 52 patients with traumatic TMP visited the department of otorhinolaryngology at a secondary medical center...
December 2016: Journal of Audiology & Otology
https://www.readbyqxmd.com/read/27933630/comparison-of-cartilage-with-temporalis-fascia-tympanoplasty-a-meta-analysis-of-comparative-studies
#19
REVIEW
Mir Mohammad Jalali, Masoud Motasaddi, Ali Kouhi, Sasan Dabiri, Robabeh Soleimani
OBJECTIVE: To systematically review the results of type 1 tympanoplasty with temporalis fascia (TF) versus cartilage in patients with chronic otitis media (COM) for graft integration and hearing improvement. DATA SOURCES: The English language literature (until June 1, 2016) was searched, using Medline (via PubMed), Scopus, ProQuest, Ovid, Cochrane database, and Google Scholar. REVIEW METHODS: A comprehensive review of the literature was performed...
December 9, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27922959/the-local-effect-of-puerarin-on-critical-sized-calvarial-defects
#20
Çiğdem Coşkun Türer, Akif Türer, Mustafa Cenk Durmuşlar, Mehmet Emin Önger
Pueraria, the root of Pueraria lobata, is a commonly used herb in alternative medicine. This study evaluates the effect of puerarin and autogenous graft material combination on bone regeneration in calvarial critical-sized bone defects. Twenty-four rats were randomly divided into 3 groups of 8 rats each. A 5-mm diameter critical-sized defect was created in the calvarium of each animal. In group C, defects were left unfilled and were allowed to heal spontaneously without the use of any grafting material. Critical-sized bone defect created in animals receiving no treatment...
January 2017: Journal of Craniofacial Surgery
keyword
keyword
2954
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"