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Multicenter Study
Functional outcome of bilateral limb threatening: lower extremity injuries at two years postinjury.
To describe the functional outcome of bilateral limb-threatening injuries at 2 years postinjury and to evaluate whether a different decision-making process should be used for these patients as opposed to patients with unilateral limb-threatening injury. ⋯ The results indicate that treatment judgments should be based upon the results derived from the analysis of the larger unilateral limb cohort data. Patients with severe, bilateral lower extremity injuries should be counseled that regardless of treatment combinations, the function of each limb is similar at 24 months. The unilateral amputation/salvage group had a greater probability of going back to work. This is the major identifiable benefit to undergoing salvage versus amputation.
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Multicenter Study Comparative Study
Diagnostic yield of endobronchial ultrasound-guided transbronchial needle aspiration: results of the AQuIRE Bronchoscopy Registry.
New transbronchial needle aspiration (TBNA) technologies have been developed, but their clinical effectiveness and determinants of diagnostic yield have not been quantified. Prospective data are needed to determine risk-adjusted diagnostic yield. ⋯ To our knowledge, this is the first bronchoscopy study of risk-adjusted diagnostic yields on a hospital-level basis. High-volume hospitals were associated with high diagnostic yields. This study also demonstrates the value of procedural registries as a quality improvement tool. A larger number and variety of participating hospitals is needed to verify these results and to further investigate other determinants of diagnostic yield.
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Randomized Controlled Trial Multicenter Study
Efficacy and tolerability of an undenatured type II collagen supplement in modulating knee osteoarthritis symptoms: a multicenter randomized, double-blind, placebo-controlled study.
Undenatured type II collagen (UC-II) is a nutritional supplement derived from chicken sternum cartilage. The purpose of this study was to evaluate the efficacy and tolerability of UC-II for knee osteoarthritis (OA) pain and associated symptoms compared to placebo and to glucosamine hydrochloride plus chondroitin sulfate (GC). ⋯ UC-II improved knee joint symptoms in knee OA subjects and was well-tolerated. Additional studies that elucidate the mechanism for this supplement's actions are warranted.
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Critical care medicine · Oct 2017
Multicenter Study Comparative StudyCritically Ill Patients With the Middle East Respiratory Syndrome: A Multicenter Retrospective Cohort Study.
To describe patient characteristics, clinical manifestations, disease course including viral replication patterns, and outcomes of critically ill patients with severe acute respiratory infection from the Middle East respiratory syndrome and to compare these features with patients with severe acute respiratory infection due to other etiologies. ⋯ Substantial overlap exists in the clinical presentation and comorbidities among patients with Middle East respiratory syndrome severe acute respiratory infection from other etiologies; therefore, a high index of suspicion combined with diagnostic testing is essential component of severe acute respiratory infection investigation for at-risk patients. The lack of distinguishing clinical features, the need to rely on real-time reverse transcription polymerase chain reaction from respiratory samples, variability in viral shedding duration, lack of effective therapy, and high mortality represent substantial clinical challenges and help guide ongoing clinical research efforts.
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Am. J. Respir. Crit. Care Med. · Nov 2011
Multicenter Study Comparative StudyThe progression of chronic obstructive pulmonary disease is heterogeneous: the experience of the BODE cohort.
Chronic obstructive pulmonary disease (COPD) is thought to result in rapid and progressive loss of lung function usually expressed as mean values for whole cohorts. ⋯ The progression of COPD is very heterogeneous. Most patients show no statistically significant decline of FEV(1) or increase in BODE. The multidimensional evaluation of COPD should offer insight into response to COPD management.