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991.
992.
Pulsed versus continuous wave CO2 laser excisions of 100 oral fibrous hyperplasias: A randomized controlled clinical and histopathological study 下载免费PDF全文
993.
H. Le Dinh J. Monard M.-H. Delbouille M.-F. Hans L. Weekers C. Bonvoisin J. Joris S. Lauwick A. Kaba D. Ledoux A. de Roover P. Honoré J.-P. Squifflet M. Meurisse O. Detry 《Transplantation proceedings》2014
Background
Organ procurement and transplant activity from controlled donation after circulatory death (DCD) was evaluated over an 11-year period to determine whether this program influenced the transplant and donation after brain death (DBD) activities.Material and Methods
Deceased donor (DD) procurement and transplant data were prospectively collected in a local database for retrospective review.Results
There was an increasing trend in the potential and actual DCD numbers over time. DCD accounted for 21.9% of the DD pool over 11 years, representing 23.7% and 24.2% of the DD kidney and liver pool, respectively. The DBD retrieval and transplant activity increased during the same time period. Mean conversion rate turning potential into effective DCD donors was 47.3%. Mean DCD donor age was 54.6 years (range, 3–83). Donors ≥60 years old made up 44.1% of the DCD pool. Among referred donors, reasons for nondonation were medical contraindications (33.7%) and family refusals (19%). Mean organ yield per DCD donor was 2.3 organs. Mean total procurement warm ischemia time was 19.5 minutes (range, 6–39). In 2012, 17 DCD and 37 DBD procurements were performed in the Liege region, which has slightly >1 million inhabitants.Conclusions
This DCD program implementation enlarged the DD pool and did not compromise the development of DBD programs. The potential DCD pool might be underused and seems to be a valuable organ donor source. 相似文献994.
995.
Helena Johansson John A Kanis Anders Odén Eugene McCloskey Roland D Chapurlat Claus Christiansen Steve R Cummings Adolfo Diez‐Perez John A Eisman Saeko Fujiwara Claus‐C Glüer David Goltzman Didier Hans Kay‐Tee Khaw Marc‐Antoine Krieg Heikki Kröger Andrea Z LaCroix Edith Lau William D Leslie Dan Mellström L Joseph Melton III Terence W O'Neill Julie A Pasco Jerilynn C Prior David M Reid Fernando Rivadeneira Tjerd van Staa Noriko Yoshimura M Carola Zillikens 《Journal of bone and mineral research》2014,29(1):223-233
Several recent studies suggest that obesity may be a risk factor for fracture. The aim of this study was to investigate the association between body mass index (BMI) and future fracture risk at different skeletal sites. In prospective cohorts from more than 25 countries, baseline data on BMI were available in 398,610 women with an average age of 63 (range, 20–105) years and follow up of 2.2 million person‐years during which 30,280 osteoporotic fractures (6457 hip fractures) occurred. Femoral neck BMD was measured in 108,267 of these women. Obesity (BMI ≥ 30 kg/m2) was present in 22%. A majority of osteoporotic fractures (81%) and hip fractures (87%) arose in non‐obese women. Compared to a BMI of 25 kg/m2, the hazard ratio (HR) for osteoporotic fracture at a BMI of 35 kg/m2 was 0.87 (95% confidence interval [CI], 0.85–0.90). When adjusted for bone mineral density (BMD), however, the same comparison showed that the HR for osteoporotic fracture was increased (HR, 1.16; 95% CI, 1.09–1.23). Low BMI is a risk factor for hip and all osteoporotic fracture, but is a protective factor for lower leg fracture, whereas high BMI is a risk factor for upper arm (humerus and elbow) fracture. When adjusted for BMD, low BMI remained a risk factor for hip fracture but was protective for osteoporotic fracture, tibia and fibula fracture, distal forearm fracture, and upper arm fracture. When adjusted for BMD, high BMI remained a risk factor for upper arm fracture but was also a risk factor for all osteoporotic fractures. The association between BMI and fracture risk is complex, differs across skeletal sites, and is modified by the interaction between BMI and BMD. At a population level, high BMI remains a protective factor for most sites of fragility fracture. The contribution of increasing population rates of obesity to apparent decreases in fracture rates should be explored. © 2014 American Society for Bone and Mineral Research. 相似文献
996.
Claus Christian Pieper Simon Frederik Groetz Jennifer Nadal Hans Heinz Schild Pascal Dominique Niggemann 《European spine journal》2014,23(1):96-101
Purpose
To determine the usefulness of acquiring extension radiographs for the evaluation of the degree of spondylolisthesis.Methods
Routine radiographs of the lumbar spine were retrospectively evaluated in 87 patients (mean-age 63, range 32–86) by two independent radiologists. All patients received radiographs in standing neutral, flexion and extension position. Vertebral body depth, sagittal translational displacement and lordosis angle were measured and slip percentage (SP) was calculated on standing neutral, flexion and extension radiographs. Statistical analysis was performed with a two-sided t test. Inter- and intraobserver reliability was assessed using the kappa-coefficient.Results
There was no statistically significant SP-difference between neutral standing and extension images. Ventral instability was diagnosed in 25–34 % (cut-off >8 % SP-difference) for neutral versus flexion comparison. The detection rate of flexion–extension radiographs representing the extremes of motion was lower with 15–22 %. Inter- and intraobserver reliability was good to excellent.Conclusion
Slip percentage in routine standing extension radiography ultimately does not differ from that obtained in a static neutral standing view. Extension radiography may therefore be omitted in a routine work-up of ventral instability in lumbar spondylolisthesis. 相似文献997.
998.
999.
Christina Mitteldorf MD Hans Peter Bertsch MD Klaus Jung PhD Kai-Martin Thoms MD Michael Peter Schön MD Michael Tronnier MD Lutz Kretschmer MD 《Annals of surgical oncology》2014,21(7):2252-2258
Background
Sentinel lymph node (SLN) biopsy (SLNB) for pT1 melanomas is not generally recognized as a clinical standard. We studied the value of SLNB for pT1 melanoma patients having at least one additional risk factor.Patients
Among 931 patients with SLNB, 210 had pT1 melanomas. All of the latter showed at least one of the following risk factors: ulceration (4 %) Clark level IV (44 %), nodular growth pattern (11 %), mitoses (59 %), regression (38 %) or age ≤40 years (27 %).Results
In this selected pT1 population, we observed a surprisingly high SLN positivity rate of 18 %. The melanoma-specific overall survival significantly depended on SLN status. Compared with Clark IV, a lower invasion level (Clark II/III) was associated with a higher proportion of positive SLNs (25 vs. 10 %; p < 0.01). There was a trend towards a higher SLN positivity rate in younger patients (p = 0.06). Breslow, ulceration, mitoses, nodular growth pattern, and sex did not reach significance. Regression was significantly more frequently found in very thin melanomas (≤0.75 mm) and tended to be significant in this subgroup (p = 0.075).Conclusions
SLNB improves prognostic stratification in patients with thin melanomas having an additional risk factor. Clark level IV most likely does not belong to these risk factors. The impact of regression deserves further consideration. Our data suggest that SLNB should be offered to patients with thin melanomas, if ulceration, nodular growth pattern, mitoses, or regression are present, or if the patient is younger than 40 years of age. 相似文献1000.
Mathieu D'Hondt Hans Pottel Dirk Devriendt Frank Van Rooy Franky Vansteenkiste Barbara Van Ooteghem Wouter De Corte 《JSLS, Journal of the Society of Laparoendoscopic Surgeons》2014,18(3)