1,720,994 research outputs found
Acute inflammatory demyelinating polyneuropathy and a unilateral babinski/plantar reflex.
No full textPerioperative management of obstructive sleep apnea: A systematic review
No full textINTRODUCTION: Obstructive sleep apnea (OSA) is the leading sleep disordered breathing condition, with a prevalence rate of moderate to severe OSA of approximately 10-17% in the general population. EVIDENCE ACQUISITION: We performed an Ovid-Medline search of all articles published up to August 2016. We included all articles providing updated evidence on epidemiology, pathophysiologic mechanisms and perioperative interventions. EVIDENCE SYNTHESIS: OSA is associated with a number of comorbidities and increased perioperative risks. Although in-laboratory polysomnography represents the gold-standard for diagnosis of OSA, it is costly and time-consuming. Anesthesiologists may screen patients for OSA through one of the available questionnaires, of which the snoring, tiredness, observed apnea, high blood pressure (STOP)-Body Mass Index, age, neck circumference and gender (Bang), STOP-bang questionnaire is the most externally validated. Although its sensitivity for the identification of mild OSA patients is 83.6%, its specificity is only 56.4%. OSA patients are associated with a higher risk of both difficult ventilation and intubation. However, practice guidelines refer to available guidelines for difficult airway management. Perioperative continuous positive airway pressure use may be of benefit since it has been reported to be associated with a reduction of both respiratory and cardiovascular complications and symptom relief. When feasible, regional anesthesia techniques and a multimodal analgesia approach should be adopted to reduce intraoperative and postoperative exposure to opioids. CONCLUSIONS: Preoperative screening of OSA patients is of relevance given the increased perioperative morbidity of these patients. Further studies are needed to provide conclusive data on which perioperative interventions are most effective at reducing this risk
Obstructive sleep apnea: Screening is the waiting room for preoperative testing, postoperative monitoring, and safety measures
No full textN/
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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