New predictive model of rebleeding during follow-up of patents with obscure gastrointestinal bleeding: A multicenter cohort study

2016 ◽  
Vol 31 (4) ◽  
pp. 752-760 ◽  
Author(s):  
Ryota Niikura ◽  
Atsuo Yamada ◽  
Naoyoshi Nagata ◽  
Yuka Kobayashi ◽  
Makoto Okamoto ◽  
...  
Keyword(s):  
Cohort Study ◽  
Gastrointestinal Bleeding ◽  
Predictive Model ◽  
Obscure Gastrointestinal Bleeding ◽  
Multicenter Cohort Study ◽  
Multicenter Cohort

scholarly journals Increased risk for postoperative periprosthetic fracture in hip fracture patients with the Exeter stem than the anatomic SP2 Lubinus stem

2019 ◽  
Author(s):  
Carl Mellner ◽  
Jabbar Mohammed ◽  
Magnus Larsson ◽  
Sandra Esberg ◽  
Maciej Szymanski ◽  
...  
Keyword(s):  
Cohort Study ◽  
Cumulative Incidence ◽  
Periprosthetic Fracture ◽  
Consecutive Series ◽  
Multicenter Cohort Study ◽  
Multicenter Cohort ◽  
Increased Risk ◽  
Neck Fracture ◽  
C 32

Abstract Background The purpose of this study was to compare the cumulative incidence of postoperative periprosthetic fracture (PPF) in a cohort of femoral neck fracture (FNF) patients treated with two commonly used cemented stems: either a collarless, polished, tapered Exeter stem or the anatomic Lubinus SP2 stem. Methods In this retrospective multicenter cohort study of a consecutive series of patients, we included 2528 patients of age 60 years and above with an FNF who were treated with either hemiarthroplasty or total hip arthroplasty using either a polished tapered Exeter stem or an anatomic Lubinus SP2 stem. The incidence of PPF was assessed at a minimum of 2 years postoperatively. Results The incidence of PPF was assessed at a median follow-up of 47 months postoperatively. Thirty nine patients (1.5%) sustained a PPF at a median of 27 months (range 0–96 months) postoperatively. Two of the operatively treated fractures were Vancouver A (5%), 7 were Vancouver B1 (18%), 10 were Vancouver B2 (26%), 7 were Vancouver B3 (18%), and 13 were Vancouver C (32%). The cumulative incidence of PPF was 2.3% in the Exeter group compared with 0.7% in the SP2 group (p < 0.001). The HR was 5.4 (95% CI 2.4–12.5, p < 0.001), using the SP2 group as the denominator. Conclusions The Exeter stem was associated with a higher risk for PPF than the Lubinus SP2 stem. We suggest that the tapered Exeter stem should be used with caution in the treatment of FNF. Trial registration The study was registered at clinicaltrials.gov (identifier: NCT03326271).

scholarly journals Gamma-glutamyl Transferase Levels are Associated with the Occurrence of Post-stroke Cognitive Impairment: A Multicenter Cohort Study

2021 ◽  
Author(s):  
Siqi Li ◽  
Xiaoling Liao ◽  
Yuesong Pan ◽  
Xianglong Xiang ◽  
Yumei Zhang
Keyword(s):  
Cohort Study ◽  
Cognitive Impairment ◽  
Gamma Glutamyl Transferase ◽  
Multicenter Cohort Study ◽  
Gamma Glutamyl ◽  
Post Stroke ◽  
Multicenter Cohort ◽  
Glutamyl Transferase ◽  
The Impact

Abstract Background: Gamma-glutamyl transferase (GGT) can maintain the physiological concentration of glutathione in cells, and protect them from oxidative stress-induced damage. However, its role in post-stroke cognitive impairment (PSCI) remains unknown. Here, we explored the impact of serum biomarker-GGT on PSCI. Methods: We conducted a prospective, multicenter cohort study. 1, 957 participants who suffered a stroke and measured baseline GGT were enrolled from the Impairment of Cognition and Sleep (ICONS) study of the China National Stroke Registry-3 (CNSR-3). They were categorized into four groups according to the quartiles of baseline GGT levels. Cognitive function was assessed by using the Montreal Cognitive Assessment (MoCA) approach. The multiple logistic regression models were performed to evaluate the relationship between GGT and PSCI at 3 months follow-up.Results: Among 1,957 participants, 671 (34.29%) patients suffered PSCI at 3 months follow-up. The highest GGT level quartile group exhibited a lower risk of PSCI in the fully adjusted model [OR (95% CI): 0.69 (0.50-0.96)], relative to the lowest group. Moreover, incorporation of GGT to the conventional model resulted in a slight improvement in PSCI outcomes after 3 months (NRI: 12.00%; IDI: 0.30%).Conclusions: Our findings demonstrated that serum GGT level was inversely associated with the risk of PSCI, with extremely low levels acting as a risk factor for PSCI.

Outcome of unilateral versus standard open midline approach for bilateral decompression in lumbar spinal stenosis: is “over the top” really better? A Swiss prospective multicenter cohort study

2019 ◽  
Vol 31 (2) ◽  
pp. 236-245 ◽  
Author(s):  
Nils H. Ulrich ◽  
Jakob M. Burgstaller ◽  
Isaac Gravestock ◽  
Giuseppe Pichierri ◽  
Maria M. Wertli ◽  
...  
Keyword(s):  
Cohort Study ◽  
Spinal Stenosis ◽  
Lumbar Spinal Stenosis ◽  
Surgical Approach ◽  
Function Score ◽  
Multicenter Cohort Study ◽  
Multicenter Cohort ◽  
Lumbar Spinal ◽  
Over The Top

OBJECTIVEIn this retrospective analysis of a prospective multicenter cohort study, the authors assessed which surgical approach, 1) the unilateral laminotomy with bilateral spinal canal decompression (ULBD; also called “over the top”) or 2) the standard open bilateral decompression (SOBD), achieves better clinical outcomes in the long-term follow-up. The optimal surgical approach (ULBD vs SOBD) to treat lumbar spinal stenosis remains controversial.METHODSThe main outcomes of this study were changes in a spinal stenosis measure (SSM) symptoms score, SSM function score, and quality of life (sum score of the 3-level version of the EQ-5D tool [EQ-5D-3L]) over time. These outcome parameters were measured at baseline and at 12-, 24-, and 36-month follow-ups. To obtain an unbiased result on the effect of ULBD compared to SOBD the authors used matching techniques relying on propensity scores. The latter were calculated based on a logistic regression model including relevant confounders. Additional outcomes of interest were raw changes in main outcomes and in the Roland and Morris Disability Questionnaire from baseline to 12, 24, and 36 months.RESULTSFor this study, 277 patients met the inclusion criteria. One hundred forty-nine patients were treated by ULBD, and 128 were treated by SOBD. After propensity score matching, 128 patients were left in each group. In the matched cohort, the mean (95% CI) estimated differences between ULBD and SOBD for change in SSM symptoms score from baseline to 12 months were −0.04 (−0.25 to 0.17), to 24 months −0.07 (−0.29 to 0.15), and to 36 months −0.04 (−0.28 to 0.21). For change in SSM function score, the estimated differences from baseline to 12 months were 0.06 (−0.08 to 0.21), to 24 months 0.08 (−0.07 to 0.22), and to 36 months 0.01 (−0.16 to 0.17). Differences in changes between groups in EQ-5D-3L sum scores were estimated to be −0.32 (−4.04 to 3.40), −0.89 (−4.76 to 2.98), and −2.71 (−7.16 to 1.74) from baseline to 12, 24, and 36 months, respectively. None of the group differences between ULBD and SOBD were statistically significant.CONCLUSIONSBoth surgical techniques, ULBD and SOBD, may provide effective treatment options for DLSS patients. The authors further determined that the patient outcome results for the technically more challenging ULBD seem not to be superior to those for the SOBD even after 3 years of follow-up.

scholarly journals Coronavirus Disease 2019 in Solid Organ Transplant: A Multicenter Cohort Study

2020 ◽  
Author(s):  
Olivia S Kates ◽  
Brandy M Haydel ◽  
Sander S Florman ◽  
Meenakshi M Rana ◽  
Zohra S Chaudhry ◽  
...  
Keyword(s):  
Cohort Study ◽  
Severe Disease ◽  
Organ Transplant ◽  
Solid Organ Transplant ◽  
Solid Organ ◽  
Chest Imaging ◽  
Multicenter Cohort Study ◽  
Multicenter Cohort ◽  
Abnormal Chest

Abstract Background The coronavirus disease 2019 (COVID-19) pandemic has led to significant reductions in transplantation, motivated in part by concerns of disproportionately more severe disease among solid organ transplant (SOT) recipients. However, clinical features, outcomes, and predictors of mortality in SOT recipients are not well described. Methods We performed a multicenter cohort study of SOT recipients with laboratory-confirmed COVID-19. Data were collected using standardized intake and 28-day follow-up electronic case report forms. Multivariable logistic regression was used to identify risk factors for the primary endpoint, 28-day mortality, among hospitalized patients. Results Four hundred eighty-two SOT recipients from &gt;50 transplant centers were included: 318 (66%) kidney or kidney/pancreas, 73 (15.1%) liver, 57 (11.8%) heart, and 30 (6.2%) lung. Median age was 58 (interquartile range [IQR] 46–57), median time post-transplant was 5 years (IQR 2–10), 61% were male, and 92% had ≥1 underlying comorbidity. Among those hospitalized (376 [78%]), 117 (31%) required mechanical ventilation, and 77 (20.5%) died by 28 days after diagnosis. Specific underlying comorbidities (age &gt;65 [adjusted odds ratio [aOR] 3.0, 95% confidence interval [CI] 1.7–5.5, P &lt; .001], congestive heart failure [aOR 3.2, 95% CI 1.4–7.0, P = .004], chronic lung disease [aOR 2.5, 95% CI 1.2–5.2, P = .018], obesity [aOR 1.9, 95% CI 1.0–3.4, P = .039]) and presenting findings (lymphopenia [aOR 1.9, 95% CI 1.1–3.5, P = .033], abnormal chest imaging [aOR 2.9, 95% CI 1.1–7.5, P = .027]) were independently associated with mortality. Multiple measures of immunosuppression intensity were not associated with mortality. Conclusions Mortality among SOT recipients hospitalized for COVID-19 was 20.5%. Age and underlying comorbidities rather than immunosuppression intensity-related measures were major drivers of mortality.

Sign in / Sign up

Export Citation Format

Share Document