scholarly journals Fractal-Based Analysis of Bone Microstructure in Crohn’s Disease: A Pilot Study

2020 ◽  
Vol 9 (12) ◽  
pp. 4116
Author(s):  
Judith Haschka ◽  
Daniel Arian Kraus ◽  
Martina Behanova ◽  
Stephanie Huber ◽  
Johann Bartko ◽  
...  
Keyword(s):  
Risk Factors ◽  
Crohn’S Disease ◽  
Crohn's Disease ◽  
Bone Loss ◽  
Bone Structure ◽  
Trabecular Bone Score ◽  
Bone Microarchitecture ◽  
Mineral Density ◽  
Glucocorticoid Treatment ◽  
History Of

Crohn’s disease (CD) is associated with bone loss and increased fracture risk. TX-Analyzer™ is a new fractal-based technique to evaluate bone microarchitecture based on conventional radiographs. The aim of the present study was to evaluate the TX-Analyzer™ of the thoracic and lumbar spine in CD patients and healthy controls (CO) and to correlate the parameters to standard imaging techniques. 39 CD patients and 39 age- and sex-matched CO were analyzed. Demographic parameters were comparable between CD and CO. Bone structure value (BSV), bone variance value (BVV) and bone entropy value (BEV) were measured at the vertebral bodies of T7 to L4 out of lateral radiographs. Bone mineral density (BMD) and trabecular bone score (TBS) by dual energy X-ray absorptiometry (DXA) were compared to TX parameters. BSV and BVV of the thoracic spine of CD were higher compared to controls, with no difference in BEV. Patients were further divided into subgroups according to the presence of a history of glucocorticoid treatment, disease duration > 15 years and bowel resection. BEV was significantly lower in CD patients with these prevalent risk factors, with no differences in BMD at all sites. Additionally, TBS was reduced in patients with a history of glucocorticoid treatment. Despite a not severely pronounced bone loss in this population, impaired bone quality in CD patients with well-known risk factors for systemic bone loss was assessed by TX-Analyzer™.

scholarly journals P129 Predictors of low bone mineral density in rheumatoid arthritis

Rheumatology ◽  
2021 ◽  
Vol 60 (Supplement_1) ◽  
Author(s):  
Malika A Swar ◽  
Marwan Bukhari
Keyword(s):  
Rheumatoid Arthritis ◽  
Risk Factors ◽  
Bone Mineral Density ◽  
Family History ◽  
Bone Loss ◽  
Femoral Neck ◽  
Bone Mineral ◽  
Fragility Fracture ◽  
Mineral Density ◽  
History Of

Abstract Background/Aims  Osteoporosis (OP) is an extra-articular manifestation of rheumatoid arthritis (RA) that leads to increased fracture susceptibility due to a variety of reasons including immobility and cytokine driven bone loss. Bone loss in other populations has well documented risk factors. It is unknown whether bone loss in RA predominantly affects the femoral neck or the spine. This study aimed to identify independent predictors of low bone mineral density (BMD) in patients RA at the lumbar spine and the femoral neck. Methods  This was a retrospective observational cohort study using patients with Rheumatoid arthritis attending for a regional dual X-ray absorptiometry (DEXA) scan at the Royal Lancaster Infirmary between 2004 and 2014. BMD in L1-L4 in the spine and in the femoral neck were recorded. The risk factors investigated were steroid use, family history of osteoporosis, smoking, alcohol abuse, BMI, gender, previous fragility fracture, number of FRAX(tm) risk factors and age. Univariate and Multivariate regression analysis models were fitted to explore bone loss at these sites using BMD in g/cm2 as a dependant variable. . Results  1,527 patients were included in the analysis, 1,207 (79%) were female. Mean age was 64.34 years (SD11.6). mean BMI was 27.32kg/cm2 (SD 5.570) 858 (56.2%) had some steroid exposure . 169(11.1%) had family history of osteoporosis. fragility fracture history found in 406 (26.6%). 621 (40.7%) were current or ex smokers . There was a median of 3 OP risk factors (IQR 1,3) The performance of the models is shown in table one below. Different risk factors appeared to influence the BMD at different sites and the cumulative risk factors influenced BMD in the spine. None of the traditional risk factors predicted poor bone loss well in this cohort. P129 Table 1:result of the regression modelsCharacteristicB femoral neck95% CIpB spine95%CIpAge at scan-0.004-0.005,-0.003<0.01-0.0005-0.002,0.00050.292Sex-0.094-0.113,-0.075<0.01-0.101-0.129,-0.072<0.01BMI (mg/m2)0.0080.008,0.0101<0.010.01130.019,0.013<0.01Fragility fracture-0.024-0.055,0.0060.12-0.0138-0.060,0.0320.559Smoking0.007-0.022,0.0350.650.0286-0.015,0.0720.20Alcohol0.011-0.033,0.0 5560.620.0544-0.013,0.1120.11Family history of OP0.012-0.021,0.0450.470.0158-0.034,0.0650.53Number of risk factors-0.015-0.039,0.0080.21-0.039-0.075,-0.0030.03steroids0.004-0.023,0.0320.030.027-0.015,0.0690.21 Conclusion  This study has shown that predictors of low BMD in the spine and hip are different and less influential than expected in this cohort with RA . As the FRAX(tm) tool only uses the femoral neck, this might underestimate the fracture risk in this population. Further work looking at individual areas is ongoing. Disclosure  M.A. Swar: None. M. Bukhari: None.

Risk factors for bone loss in Crohn's disease

2000 ◽  
Vol 118 (4) ◽  
pp. A312
Author(s):  
Aida Ethiopia ◽  
Mark S. Silverberg ◽  
Shelly Mikolainis ◽  
Hillary A. Steinhart
Keyword(s):  
Risk Factors ◽  
Crohn’S Disease ◽  
Crohn's Disease ◽  
Bone Loss

scholarly journals Adenocarcinoma Arising from Perianal Fistulizing Crohn’s Disease

2018 ◽  
Vol 12 (2) ◽  
pp. 390-395 ◽  
Author(s):  
Rosario Fornaro ◽  
Marco Frascio ◽  
Michela Caratto ◽  
Elisa Caratto ◽  
Rita Bianchi ◽  
...  
Keyword(s):  
Risk Factors ◽  
Crohn’S Disease ◽  
Crohn's Disease ◽  
Poor Prognosis ◽  
Perianal Fistula ◽  
Lack Of Information ◽  
Different Types ◽  
History Of ◽  
Duration Of Disease ◽  
Colon And Rectum

Perianal fistula is a very debilitating event and a cause of morbidity in patients with Crohn’s disease (CD). Its malignant transformation is very rare with an incidence of around 0.004–0.7%. Presence of disease in the colon and rectum is the major risk factor for the development of a perianal fistula. In this report we show a case of adenocarcinoma arising from a perianal fistulizing CD. This type of tumor is highly aggressive, difficult to diagnose, and has a rather poor prognosis. The different neoplastic transformations and the different types of tumors that may appear in patients with CD, especially at the colorectal level or at the level of an eventual anastomosis, are to date well documented and described in the literature, while there is a lack of information and of treated cases concerning the occurrence of cancer at the level of a fistula. Due to the rarity of cases, we tried to identify the most frequent and important risk factors: sex, duration of disease, age at diagnosis, and the history of the fistula.

Risk factors for low bone mineral density in children and young adults with Crohn’s disease

1999 ◽  
Vol 135 (5) ◽  
pp. 593-600 ◽  
Author(s):  
Edisio J. Semeao ◽  
Abbas F. Jawad ◽  
Nicole O. Stouffer ◽  
Babette S. Zemel ◽  
David A. Piccoli ◽  
...  
Keyword(s):  
Risk Factors ◽  
Bone Mineral Density ◽  
Young Adults ◽  
Crohn’S Disease ◽  
Crohn's Disease ◽  
Bone Mineral ◽  
Mineral Density ◽  
Low Bone Mineral Density ◽  
Children And Young Adults

scholarly journals Prevalence, Risk Factors and Course of Osteoporosis in Patients with Crohn’s Disease at a Tertiary Referral Center

2019 ◽  
Vol 8 (12) ◽  
pp. 2178 ◽  
Author(s):  
Peter Hoffmann ◽  
Johannes Krisam ◽  
Christian Kasperk ◽  
Annika Gauss
Keyword(s):  
Risk Factors ◽  
Crohn’S Disease ◽  
Crohn's Disease ◽  
Categorical Variables ◽  
Primary Study ◽  
Mineral Density ◽  
Steroid Use ◽  
Factors Influencing ◽  
Increased Risk ◽  
Male Sex

Background: Patients with Crohn’s disease are at increased risk for fractures due to low bone mineral density (BMD). Real-world data are necessary to optimize surveillance and treatment strategies. Methods: Patients with Crohn’s disease who underwent at least one dual-energy X-ray absorptiometry (DXA) scans were recruited. The primary study endpoints were (1) prevalence of osteoporosis, and (2) factors influencing changes of BMD. To identify potential risk factors for reduced BMD, Mann–Whitney U-test was used for ordinal and continuous variables and x²-tests for categorical variables. Results with p < 0.05 were included in a multivariable analysis. To identify potential factors influencing changes in BMD, a generalized linear mixed model was applied. Results: 39.9% of the patients were diagnosed with normal BMD, 40.2% with osteopenia, and 19.8% with osteoporosis. The main risk factors for osteoporosis were low body mass index (BMI), previous bowel resections and male sex. The main risk factors for reduced BMD during further along the disease course were steroid use, history of immunomodulator treatment, female sex and decreased BMI. Conclusion: Low BMI, previous bowel resections and male sex were the main risk factors for the development of osteoporosis. Steroid use reduced BMD even under anti-inflammatory therapy, underlining that they should be used with great care in that patient group.

Bone loss in patients with Crohn's disease: A longterm-follow up study

2001 ◽  
Vol 120 (5) ◽  
pp. A628-A628
Author(s):  
P CLEMENS ◽  
V HAWIG ◽  
M MUELLER ◽  
J SCAENZLIN ◽  
B KLUMP ◽  
...  
Keyword(s):  
Crohn’S Disease ◽  
Crohn's Disease ◽  
Bone Loss ◽  
Follow Up Study

scholarly journals Prevalence and risk factors for bone loss in rheumatoid arthritis patients from South China: modeled by three methods

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Zhuoran Hu ◽  
Lei Zhang ◽  
Zhiming Lin ◽  
Changlin Zhao ◽  
Shuiming Xu ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Risk Factors ◽  
Lumbar Spine ◽  
Bone Loss ◽  
South China ◽  
Serum Vitamin ◽  
Tumor Necrosis Factor Inhibitor ◽  
Healthy Controls ◽  
Mineral Density ◽  
Serum Vitamin D

Abstract Background To explore the prevalence of bone loss among patients with rheumatoid arthritis (RA) and healthy controls (HC) and further explored the risk factors for osteopenia and osteoporosis of RA patients. Methods A cross-sectional survey was undertaken in four hospitals in different districts in South China to reveal the prevalence of bone loss in patients. Case records, laboratory tests, and bone mineral density (BMD) results of patients were collected. Traditional multivariable logistic regression analysis and two machine learning methods, including least absolute shrinkage selection operator (LASSO) and random forest (RF) were for exploring the risk factors for osteopenia or osteoporosis in RA patients. Results Four hundred five patients with RA and 198 HC were included. RA patients had lower BMD in almost BMD measurement sites than healthy controls; the decline of lumbar spine BMD was earlier than HC. RA patients were more likely to comorbid with osteopenia and osteoporosis (p for trend < 0.001) in the lumbar spine than HC. Higher serum 25-hydroxyvitamin D3 level and using tumor necrosis factor inhibitor in the last year were protective factors; aging, lower body mass index, and increased serum uric acid might be risk factors for bone loss. Conclusions RA patients were more prone and earlier to have bone loss than HC. More attention should be paid to measuring BMD in RA patients aging with lower BMI or hyperuricemia. Besides, serum vitamin D and all three measurement sites are recommended to check routinely. TNFi usage in the last year might benefit bone mass.

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