FC 079HIGH SERUM PHOSPHATE, A NOVEL POTENTIAL RISK FACTOR FOR BONE FRAGILITY FRACTURES IN THE COSMOS STUDY

2021 ◽  
Vol 36 (Supplement_1) ◽  
Author(s):  
Pedro Barrera Baena ◽  
Minerva Rodríguez García ◽  
Enrique Rodríguez Rubio ◽  
Lucía González Llorente ◽  
Francesco Locatelli ◽  
...  

Abstract Background and Aims Bone fragility fractures (bone fractures) are extremely frequent in haemodialysis (HD) patients. Serum phosphate (P) has been suggested as a risk factor for bone fracture, nonetheless, evidence is poor. The aim of this study was to assess the association between incidence of bone fractures and serum phosphate (P), calcium (Ca) and parathyroid hormone (PTH) in patients from the COSMOS study. Method COSMOS is an observational, prospective, open cohort study with 3 years of follow-up including 6797 haemodialysis patients from 227 centres randomly selected from 20 European countries. At baseline, demographics, comorbidities, treatments, serum biochemical parameters of the previous six months and bone fractures of the previous 12 months were collected. Every 6 months, all these variables, outcomes, and incident bone fractures, were collected. Patients who had at least one bone fracture during follow-up were compared with those who had not. Multivariate binary logistic regression and Poisson regression were used to assess the association between incidence of bone fractures and serum P, Ca and PTH. Time to fracture (and possible re-fracture) was also evaluated using Cox regression and Cox regression for recurrent events. All the results were adjusted by 23 variables including Ca, P, PTH, albumin and haemoglobin (full adjusted model). Results Analysis included 6274 patients who had follow-up data and non-missing information regarding bone fractures at baseline and during follow-up; 252 patients (4.0%), suffered at least one incident bone fracture. The fractured patients were older (68.1±12.9 vs. 63.8±14.5 years, p<0.001), with a higher percentage of women (56.3% vs. 38.6%, p<0.001) and history of cardiovascular disease (79.4% vs. 71.7%, p=0.010), longer haemodialysis vintage (55.9±64.0 vs. 38.3±48.8 months, p<0.001), and higher serum calcium (9.2±0.8 vs. 9.1±0.7 mg/dL, p=0.025) and lower serum albumin (3.7±0.5 vs. 3.8±0.5 g/dL, p=0.004) levels. Multivariate binary logistic regression showed that “well known risk factors for bone fracture”, such as a previous bone fracture (OR: 7.78[95%CI:4.83-12.55], p<0.001), older age (OR: 1.03[95%CI:1.01-1.04], p<0.001, per 1 year), sex female (OR: 1.71[95%CI:1.28-2.30], p<0.001), haemodialysis vintage (OR: 1.00[95%CI: 1.00-1.01], p=0.002, per 1 month), and serum PTH > 800 pg/mL (OR: 1.60[95%CI: 1.01-2.55], p=0.047), were associated with a higher incidence of follow-up bone fractures. In addition to the “well known bone risk factors for fracture”, serum P > 6.1 mg/dL (OR: 1.50[95% CI: 1.07-2.11], p=0.02) and serum Ca > 9.7 mg/dL (OR: 1.42[95%CI: 1.01-2.03], p=0.043), were also associated with a higher incidence of bone fractures in the full-adjusted model. These findings were partly consistent with Poisson regression for serum P >6.1 mg/dL (IRR: 1.46[95% CI: 1.00-2.13], p=0.0085) and serum Ca > 9.7 mg/dL (IRR: 1.49[95%CI: 1.06-2.08], p=0.0047), but not for PTH. In addition, Cox regression analysis showed association between bone fractures and serum P >6.1 mg/dl (HR: 1.61 [95%CI: 1.16-2.24], p=0.0049) and 1.60 [95%CI: 1.14-2.24] (p=0.0066) for simple and recurrent events respectively, but no association was found with serum Ca and PTH in the 2 full-adjusted models for the Cox regression analyses. Conclusion In COSMOS, a large haemodialysis patient’s cohort with 3 years follow up, serum P was the only biochemical parameter that remained as a significant risk factor for bone fractures after 4 statistic approaches. Thus, for the first time, in a large scale well controlled study, high serum P has been identified as a new independent potential risk factor for incident bone fractures in haemodialysis patients.

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
John J Keaney ◽  
Layan Akijian ◽  
Doug Mulholland ◽  
Niamh Hannon ◽  
Danielle M Ní Chróinín ◽  
...  

Background: Following ischemic cerebrovascular accident (CVA) or transient ischemic attack (TIA) aggressive risk factor modification is undertaken to reduce the risk of recurrent events. Holter monitoring is advocated to facilitate the detection and treatment of Atrial Fibrillation (AF). Frequent Premature Atrial Contractions (PACs) are associated with the development of AF, but to date it is unknown whether the burden of PACs on Holters is of any prognostic importance following CVA/TIA. Objective: PACs on Holter monitoring may be a marker for recurrent cerebrovascular events post CVA/TIA. Methods: Retrospective analysis was performed on Holters of patients with CVA/TIA enrolled in a prior population based stroke study. Frequent PACs were defined as a rate of PACs ≥ 100 per 24 hours. The primary endpoint was recurrent CVA or TIA. Results: 84 cases (61.0% male) were reviewed. Mean age was 69.7 ± 12.4 years. Mean time to follow-up was 2514.6 ± 91.2 days. The average number of PACs in the frequent group (Hi-PAC, 21 patients) was 1610.8 ± 4541.4 compared with 21.8 ± 27.6 in those with less than 100 PACs (Lo-PAC, 63 patients). There was no statistically significant difference in age, gender, hypertension or diabetes between the two groups. On follow-up there were 20 recurrent events and 33 patients died. In the Hi-PAC group there were 8 (38.1%) recurrent events, and 16 (76.2%) patients died versus 12 (18.8%) and 17 (26.6%) respectively in Lo-PAC group. On Cox regression analysis the Hazard ratio (HR) for recurrent events was 2.75 (95% confidence interval (CI) 1.08 to 7.01). Kaplan Meier curves revealed a statistically significant difference in recurrance rates between the two groups (p < 0.05). There was also a statistically significant difference in overall mortality on Kaplan Meier survival analysis (p < 0.001), and with a hazard ratio on Cox regression analysis of 3.47 (95% CI 1.74 [[Unable to Display Character: &#8211;]] 6.91). There was no significant difference in incidence of MI or AF. Conclusion: Frequent PACs on Holter monitor represent a significant risk factor for both recurrent events and mortality following CVA/TIA. Further prospective studies should be performed to assess whether these patients may benefit from more aggressive anticoagulation, similar to those with AF.


2020 ◽  
Vol 8 (1) ◽  
pp. e001298 ◽  
Author(s):  
Mattias Rydberg ◽  
Malin Zimmerman ◽  
Anders Gottsäter ◽  
Peter M Nilsson ◽  
Olle Melander ◽  
...  

IntroductionCompression neuropathies (CN) in the upper extremity, the most common being carpal tunnel syndrome (CTS) and ulnar nerve entrapment (UNE), are frequent among patients with diabetes mellitus (DM). Earlier studies have shown contradicting results regarding DM as a risk factor for CN. Thus, the aim of the present population-based, longitudinal study was to explore potential associations between DM, CTS, and UNE during long-term follow-up.Research design and methodsA total of 30 466 participants aged 46–73 years, included in the population-based Malmö Diet and Cancer Study during 1991–1996, were followed up in Swedish national registries regarding incident CTS and UNE until 2016. Associations between prevalent DM at baseline and incident CTS or UNE were calculated using Cox proportional hazard models, adjusted for baseline confounders, such as sex, age at study entry, smoking, hypertension, use of antihypertensive treatment, alcohol consumption, and body mass index (BMI). HbA1c and fasting plasma glucose levels had been measured at baseline in a subgroup of 5508 participants and were related to incident CTS and UNE in age and sex-adjusted binary logistic regression models.ResultsA total of 1081 participants developed CTS and 223 participants developed UNE during a median follow-up of 21 years. Participants with incident CTS or UNE had higher prevalence of DM and higher BMI at baseline. Using multivariate Cox regression models, prevalent DM at baseline was independently associated with both incident CTS (HR 2.10; 95% CI 1.65 to 2.70, p<0.0001) and incident UNE (HR 2.20; 95% CI 1.30 to 3.74, p=0.003). Higher levels of HbA1c and plasma glucose were associated with an increased risk for CTS, but not for UNE.ConclusionThis study establishes DM as a major risk factor in the development of both CTS and UNE. Furthermore, a higher BMI is associated with both CTS and UNE. Finally, hyperglycemia seems to affect the median and ulnar nerves differently.


2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Magnus Johansson ◽  
Markus Jansson-Fröjmark ◽  
Annika Norell-Clarke ◽  
Steven J. Linton

Abstract Background The aim of this investigation was to examine the longitudinal association between change in insomnia status and the development of anxiety and depression in the general population. Methods A survey was mailed to 5000 randomly selected individuals (aged 18–70 years) in two Swedish counties. After 6 months, a follow-up survey was sent to those (n = 2333) who answered the first questionnaire. The follow-up survey was completed by 1887 individuals (80.9%). The survey consisted of questions indexing insomnia symptomatology, socio-demographic parameters, and the Hospital Anxiety and Depression Scale. Change in insomnia status was assessed by determining insomnia at the two time-points and then calculating a change index reflecting incidence (from non-insomnia to insomnia), remission (from insomnia to non-insomnia), or status quo (no change). Multivariate binary logistic regression analyses were used to examine the aim. Results Incident insomnia was significantly associated with an increased risk for the development of new cases of both anxiety (OR = 0.32, p < .05) and depression (OR = 0.43, p < .05) 6 months later. Incident insomnia emerged also as significantly associated with an elevated risk for the persistence of depression (OR = 0.30, p < .05), but not for anxiety. Conclusions This study extends previous research in that incidence in insomnia was shown to independently increase the risk for the development of anxiety and depression as well as for the maintenance of depression. The findings imply that insomnia may be viewed as a dynamic risk factor for anxiety and depression, which might have implications for preventative work.


2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 294.2-294
Author(s):  
D. Ciardo ◽  
P. Pisani ◽  
F. A. Lombardi ◽  
R. Franchini ◽  
F. Conversano ◽  
...  

Background:The main consequence of osteoporosis is the occurrence of fractures due to bone fragility, with important sequelae in terms of disability and mortality. It has been already demonstrated that the information about bone mass density (BMD) alone is not sufficient to predict the risk of fragility fractures, since several fractures occur in patients with normal BMD [1].The Fragility Score is a parameter that allows to estimate skeletal fragility thanks to a trans-abdominal ultrasound scan performed with Radiofrequency Echographic Multi Spectrometry (REMS) technology. It is calculated by comparing the results of the spectral analysis of the patient’s raw ultrasound signals with reference models representative of fragile and non-fragile bones [2]. It is a dimensionless parameter, which can vary from 0 to 100, in proportion to the degree of fragility, independently from BMD.Objectives:This study aims to evaluate the effectiveness of Fragility Score, measured during a bone densitometry exam performed with REMS technology at lumbar spine, in identifying patients at risk of incident osteoporotic fractures at a follow-up period of 5 years.Methods:Caucasian women with age between 30 and 90 were scanned with spinal REMS and DXA. The incidence of osteoporotic fractures was assessed during a follow-up period of 5 years. The ability of the Fragility Score to discriminate between patients with and without incident fragility fractures was subsequently evaluated and compared with the discriminatory ability of the T-score calculated with DXA and with REMS.Results:Overall, 533 women (median age: 60 years; interquartile range [IQR]: 54-66 years) completed the follow-up (median 42 months; IQR: 35-56 months), during which 73 patients had sustained an incident fracture.Both median REMS and DXA measured T-score values were significantly lower in fractured patients than for non-fractured ones, conversely, REMS Fragility Score was significantly higher (Table 1).Table 1.Analysis of T-score values calculated with REMS and DXA and Fragility Score calculated with REMS. Median values and interquartile ranges (IQR) are reported. The p-value is derived from the Mann-Whitney test.Patients without incident fragility fracturePatients with incident fragility fracturep-valueT-score DXA[median (IQR)]-1.9 (-2.7 to -1.0)-2.6 (-3.3 to -1.7)0.0001T-score REMS[median (IQR)]-2.0 (-2.8 to -1.1)-2.7 (-3.5 to -1.9)<0.0001Fragility Score[median (IQR)]29.9 (25.7 to 36.2)53.0 (34.2 to 62.5)<0.0001By evaluating the capability to discriminate patients with/without fragility fractures, the Fragility Score obtained a value of the ROC area under the curve (AUC) of 0.80, higher than the AUC of the REMS T-score (0.66) and of the T-score DXA (0.64), and the difference was statistically significant (Figure 1).Figure 1.ROC curve comparison of Fragility Score, REMS and DXA T-score values in the classification of patients with incident fragility fractures.Furthermore, the correlation between the Fragility Score and the T-score values was low, with Pearson correlation coefficient r=-0.19 between Fragility Score and DXA T-score and -0.18 between the Fragility Score and the REMS T-score.Conclusion:The Fragility Score was found to be an effective tool for the prediction of fracture risk in a population of Caucasian women, with performances superior to those of the T-score values. Therefore, this tool presents a high potential as an effective diagnostic tool for the early identification and subsequent early treatment of bone fragility.References:[1]Diez Perez A et al. Aging Clin Exp Res 2019; 31(10):1375-1389.[2]Pisani P et al. Measurement 2017; 101:243–249.Disclosure of Interests:None declared


Author(s):  
Gianfranco Umeres-Francia1 ◽  
María Rojas-Fernández ◽  
Percy Herrera Añazco ◽  
Vicente Benites-Zapata

Objective: To assess the association between NLR and PLR with all-cause mortality in Peruvian patients with CKD Methods: We conducted a retrospective cohort study in adults with CKD in stages 1 to 5. The outcome variable was mortality and as variables of exposure to NLR and PLR. Both ratios were categorized as high with a cut-off point of 3.5 and 232.5; respectively. We carried out a Cox regression model and calculated crude and adjusted hazard ratios (HR) with their 95% confidence interval (95%CI). Results: We analyzed 343 participants with a median follow-up time of 2.45 years (2.08-3.08). The frequency of deaths was 17.5% (n=60). In the crude analysis, the high NLR and PLR were significantly associated with all-cause mortality (HR=2.01; 95% CI:1.11-3.66) and (HR=2.58; 95% CI:1.31-5.20). In the multivariate model, after adjusting for age, sex, serum creatinine, CKD stage, albumin and hemoglobin, the high NLR and PLR remained as an independent risk factor for all-cause mortality, (HR=2.10; 95% CI:1.11-3.95) and (HR=2.71; 95% CI:1.28-5.72). Conclusion: Our study suggests the relationship between high NLR and PLR with all-cause mortality in patients with CKD.


Cephalalgia ◽  
2013 ◽  
Vol 34 (5) ◽  
pp. 327-335 ◽  
Author(s):  
Knut Hagen ◽  
Eystein Stordal ◽  
Mattias Linde ◽  
Timothy J Steiner ◽  
John-Anker Zwart ◽  
...  

Background Headache has not been established as a risk factor for dementia. The aim of this study was to determine whether any headache was associated with subsequent development of vascular dementia (VaD), Alzheimer’s disease (AD) or other types of dementia. Methods This prospective population-based cohort study used baseline data from the Nord-Trøndelag Health Study (HUNT 2) performed during 1995–1997 and, from the same Norwegian county, a register of cases diagnosed with dementia during 1997–2010. Participants aged ≥20 years who responded to headache questions in HUNT 2 were categorized (headache free; with any headache; with migraine; with nonmigrainous headache). Hazard ratios (HRs) for later inclusion in the dementia register were estimated using Cox regression analysis. Results Of 51,383 participants providing headache data in HUNT 2, 378 appeared in the dementia register during the follow-up period. Compared to those who were headache free, participants with any headache had increased risk of VaD ( n = 63) (multivariate-adjusted HR = 2.3, 95% CI 1.4–3.8, p = 0.002) and of mixed dementia (VaD and AD ( n = 52)) (adjusted HR = 2.0, 95% CI 1.1–3.5, p = 0.018). There was no association between any headache and later development of AD ( n = 180). Conclusion In this prospective population-based cohort study, any headache was a risk factor for development of VaD.


Vascular ◽  
2020 ◽  
pp. 170853812092595
Author(s):  
Kai-Ni Lee ◽  
Li-Ping Chou ◽  
Chi-Chu Liu ◽  
Tsang-Shan Chen ◽  
Eric Kim-Tai Lui ◽  
...  

Objectives The ankle–brachial index is a noninvasive modality to evaluate atherosclerosis and is a predictive role for future cardiovascular events and mortality. However, few studies have evaluated its relation to long-term future ischemic stroke in hemodialysis patients. Therefore, we examined the relationship between ankle–brachial index and ischemic stroke events among hemodialysis patients in a seven-year follow-up. Methods A total of 84 patients were enrolled. Ankle–brachial index was assessed in January 2009. Primary outcomes included ischemic stroke. An ankle–brachial index < 0.9 was considered abnormal and 1.4 ≥ ankle–brachial index ≥ 0.9 to be normal ankle–brachial index. Results Mean values for ankle–brachial index were 0.98 ± 0.21at study entrance. In addition, 28 patients encountered ischemic stroke in the seven-year follow-up. In univariate Cox regression analysis, old age (hazard ratio (HR): 1.065, 95% confidence interval (CI): 1.030–1.102, p < 0.001), low seven-year averaged serum phosphate levels (HR: 0.473, 95% CI: 0.306–0.730, p = 0.001), and abnormal ankle–brachial index (HR: 0.035, 95% CI: 0.009–0.145, p < 0.001) were risk factors for ischemic stroke. In multivariate Cox regression analysis for significant variables in univariate analysis, abnormal ankle–brachial index (HR: 0.058, 95% CI: 0.012–0.279, p < 0.001) and low seven-year averaged serum phosphate levels (HR: 0.625, 95% CI: 0.404–0.968, p = 0.035) remained the risk factors for ischemic stroke. The risk of ischemic stroke was 3.783-fold in patients with abnormal ankle–brachial index compared with patients with normal ankle–brachial index (HR: 3.783, 95% CI: 1.731–8.269, p = 0.001). Conclusions These findings suggest that ankle–brachial index is an impressive predictor of future ischemic stroke among hemodialysis patients.


2020 ◽  
Author(s):  
Wang Xiaofei ◽  
Wang Wenli ◽  
Zou Cao

Abstract Background Left atrial diameter (LAD) has been confirmed to predict recurrence of atrial fibrillation (AF) after catheter ablation (CA). The influence of right atrium (RA) size on the prognosis after CA was relatively unclear and lack of research. The objective of the present study was to investigate the relationship between right atrial diameter (RAD) and the mid-term outcome of AF after CA. Methods This study retrospectively examined 121 patients who underwent initial CA for symptomatic AF. Cox regression model was used to find risk factors of recurrence. Receiver operating characteristic (ROC) curve was used to evaluate predictive power and determine clinic cutoff value. Kaplan-Meier survival curve and log-rank test were used to analyze success rate. Results There were 94 (77.7%) patients of freedom from AF after 24.2 ± 4.5 months’ follow-up. Multivariate Cox regression analysis showed both hypertension and RAD were independent risk factors of arrhythmia recurrence after ablation regardless of AF type (HR: 4.915; 95% CI: 1.370-17.635; P = 0.015 and HR: 1.059; 95% CI: 1.001–1.120; P = 0.045, respectively). However, in patients with paroxysmal AF (par-AF), Multivariate analysis showed RAD become the only independent risk factor (HR: 1.031; 95% CI: 1.016–1.340; P = 0.029). ROC curve demonstrated the cutoff value of RAD was 35.5 mm with an area under the curve (AUC) of 0.715 (95% CI: 0.586–0.843, P = 0.009), sensitivity of 81.3% and specificity of 54.2%. Kaplan-Meier survival curve showed significant difference of freedom from par-AF (67.5 vs. 91.4%, log-rank, P = 0.015) between patients with RAD ≥ 35.5 mm and < 35.5 mm in this subgroup. Nevertheless, in patients with persistent AF (per-AF), no risk factor of arrhythmia recurrence was found. In addition, Kaplan-Meier survival curve showed no significant difference of freedom from per-AF (69.7 vs. 87.5%, log-rank, P = 0.31) between patients with RAD ≥ 35.5 mm and < 35.5 mm. Conclusions RAD was the independent risk factor predicting recurrence of AF after CA only in patients with par-AF. In patients with RAD < 35.5 mm, there was a significantly higher freedom from par-AF recurrence compared with RAD ≥ 35.5 mm after a mid-term follow-up.


Author(s):  
Andreas Wiedl ◽  
Stefan Förch ◽  
Annabel Fenwick ◽  
Edgar Mayr

Abstract Purpose The most common osteoporotic fragility fractures are hip, vertebral and upper extremity fractures. An association with increased mortality is widely described with their occurrence. Fracture-specific associated death rates were determined in a 2-year follow-up for patients treated on an orthogeriatric ward. These were compared amongst each other, examined for changes with age and their impact on the relative mortality risk in relation to the corresponding population. Methods We assessed all patients that were treated in the course of a year on an orthogeriatric ward and suffered from the following injuries: hip (HF), vertebral (VF) and upper extremity fractures (UEF). In a 2-year follow-up it was possible to determine the month of death in the case of the patient’s decease. Pairwise comparisons of the three fracture type death rates were performed through Cox-Regression. We stratified the fracture-dependent absolute mortality and age-specific mortality risk (ASMR) for age groups 71–80, 81–90 and 91–95. Results Overall, we assessed 240 patients with HF, 96 with VF and 127 with UEF over the span of a year. 1- and 2-year-mortality was: HF: 29.6% a.e. 42.9%, VF: 29.2% a.e. 36.5%, UEF: 20.5% a.e 34.6%. Pairwise comparisons of these mortality values revealed no significant differences. In association with HF and VF, we observed a significant increase of 2-year mortality for the oldest compared to the youngest patients (HF: 60.4% vs. 22.5%; p = 0.028) (VF 70% vs. 14.3%; p = 0.033). The analogue comparison for UEF revealed no relevant difference in age-dependent mortality (40.9% vs. 31.1%; p = 0.784). Common for all fracture types ASMR’s were more elevated in the younger patients and decreased with higher age. Conclusion The fracture-related mortality in the 2-year follow-up was comparable. We observed a reduction of relative mortality risk in the oldest patients. While a direct influence of fracture on mortality must be supposed, we support the thesis of the fracture rather being an indicator of higher susceptibility of timely death.


2021 ◽  
Author(s):  
Hotaka Ishizu ◽  
Hirokazu Shimizu ◽  
Tomohiro Shimizu ◽  
Taku Ebata ◽  
Yuki Ogawa ◽  
...  

Abstract Objectives To determine whether patients with rheumatoid arthritis (RA) who have had fragility fractures are at an increased risk of refractures. Methods Patients with fragility fractures who were treated surgically at ten hospitals from 2008 to 2017 and who underwent follow-up for more than 24 months were either categorized into a group comprising patients with RA or a group comprising patients without RA (controls). The groups were matched 1:1 by propensity score matching. Accordingly, 240 matched participants were included in this study. The primary outcome was the refracture rate in patients with RA as compared to in the controls. Multivariable analyses were also conducted on patients with RA to evaluate the odds ratios (ORs) for the refracture rates. Results Patients with RA were significantly associated with increased rates of refractures during the first 24 months (OR: 2.714, 95% confidence interval [95% CI]: 1.015–7.255; P = 0.040). Multivariable analyses revealed a significant association between increased refracture rates and long-term RA (OR: 6.308, 95% CI: 1.195–33.292; P=0.030). Conclusions Patients with RA who have experienced fragility fractures are at an increased risk of refractures. Long-term RA is a substantial risk factor for refractures.


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