scholarly journals Low-Blood Lymphocyte Number and Lymphocyte Decline as Key Factors in COPD Outcomes: A Longitudinal Cohort Study

Respiration ◽  
2021 ◽  
pp. 1-13
Author(s):  
Umberto Semenzato ◽  
Davide Biondini ◽  
Erica Bazzan ◽  
Mariaenrica Tiné ◽  
Elisabetta Balestro ◽  
...  
Keyword(s):  
Cox Regression ◽  
Chronic Obstructive ◽  
Long Term Outcomes ◽  
Obstructive Pulmonary Disease ◽  
Cox Regression Analysis ◽  
Incidence And Mortality ◽  
Multiple Samples ◽  
Over Time

<b><i>Background:</i></b> Smokers with and without chronic obstructive pulmonary disease (COPD) are at risk of severe outcomes like exacerbations, cancer, respiratory failure, and decreased survival. The mechanisms for these outcomes are unclear; however, there is evidence that blood lymphocytes (BL) number might play a role. <b><i>Objective:</i></b> The objective of this study is to investigate the relationship between BL and their possible decline over time with long-term outcomes in smokers with and without COPD. <b><i>Methods:</i></b> In 511 smokers, 302 with COPD (COPD) and 209 without COPD (noCOPD), followed long term, we investigated whether BL number and BL decline over time might be associated with long-term outcomes. Smokers were divided according to BL number in high-BL (≥1,800 cells/µL) and low-BL (&#x3c;1,800 cells/µL). Clinical features, cancer incidence, and mortality were recorded during follow-up. BL count in multiple samples and BL decline over time were calculated and related to outcomes. <b><i>Results:</i></b> BL count was lower in COPD (1,880 cells/µL) than noCOPD (2,300 cells/µL; <i>p</i> &#x3c; 0.001). 43% of COPD and 23% of noCOPD had low-BL count (<i>p</i> &#x3c; 0.001). BL decline over time was higher in COPD than noCOPD (<i>p</i> = 0.040). 22.5% of the whole cohort developed cancer which incidence was higher in low-BL subjects and in BL decliners than high-BL (31 vs. 18%; <i>p</i> = 0.001) and no decliners (32 vs. 19%; <i>p</i> = 0.002). 26% in the cohort died during follow-up. Furthermore, low-BL count, BL decline, and age were independent risk factors for mortality by Cox regression analysis. <b><i>Conclusion:</i></b> BL count and BL decline are related to worse outcomes in smokers with and without COPD, which suggests that BL count and decline might play a mechanistic role in outcomes deterioration. Insights into mechanisms inducing the fall in BL count could improve the understanding of COPD pathogenesis and point toward new therapeutic measures.

scholarly journals Evaluation of different late left ventricular remodeling definitions for predicting long-term outcomes in acute myocardial infarction patients undergoing percutaneous coronary intervention

2021 ◽  
Vol 42 (Supplement_1) ◽  
Author(s):  
S Zhang ◽  
X Xie ◽  
C He ◽  
X Lin ◽  
M Luo ◽  
...  
Keyword(s):  
Heart Failure ◽  
Ventricular Remodeling ◽  
Cox Regression ◽  
Left Ventricular Remodeling ◽  
Left Ventricular ◽  
Long Term Outcomes ◽  
Cox Regression Analysis ◽  
Long Term Mortality

Abstract Background Late left ventricular remodeling (LLVR) after the index acute myocardial infarction (AMI) is a common complication, and is associated with poor outcome. However, the optimal definition of LLVR has been debated because of its different incidence and influence on prognosis. At present, there are limited data regarding the influence of different LLVR definitions on long-term outcomes in AMI patients undergoing percutaneous coronary intervention (PCI). Purpose To explore the impact of different definitions of LLVR on long-term mortality, re-hospitalization or an urgent visit for heart failure, and identify which definition was more suitable for predicting long-term outcomes in AMI patients undergoing PCI. Methods We prospectively observed 460 consenting first-time AMI patients undergoing PCI from January 2012 to December 2018. LLVR was defined as a ≥20% increase in left ventricular end-diastolic volume (LVEDV), or a &gt;15% increase in left ventricular end-systolic volume (LVESV) from the initial presentation to the 3–12 months follow-up, or left ventricular ejection fraction (LVEF) &lt;50% at follow up. These parameters of the cardiac structure and function were measuring through the thoracic echocardiography. The association of LLVR with long-term prognosis was investigated by Cox regression analysis. Results The incidence rate of LLVR was 38.1% (n=171). The occurrence of LLVR according to LVESV, LVEDV and LVEF definition were 26.6% (n=117), 31.9% (n=142) and 11.5% (n=51), respectively. During a median follow-up of 2 years, after adjusting other potential risk factors, multivariable Cox regression analysis revealed LLVR of LVESV definition [hazard ratio (HR): 2.50, 95% confidence interval (CI): 1.19–5.22, P=0.015], LLVR of LVEF definition (HR: 16.46, 95% CI: 6.96–38.92, P&lt;0.001) and LLVR of Mix definition (HR: 5.86, 95% CI: 2.45–14.04, P&lt;0.001) were risk factors for long-term mortality, re-hospitalization or an urgent visit for heart failure. But only LLVR of LVEF definition was a risk predictor for long-term mortality (HR: 6.84, 95% CI: 1.98–23.65, P=0.002). Conclusions LLVR defined by LVESV or LVEF may be more suitable for predicting long-term mortality, re-hospitalization or an urgent visit for heart failure in AMI patients undergoing PCI. However, only LLVR defined by LVEF could be used for predicting long-term mortality. FUNDunding Acknowledgement Type of funding sources: None. Association Between LLVR and outcomes Kaplan-Meier Estimates of the Mortality

Long-Term Outcomes and Safety of Continuous Lenalidomide Plus Dexamethasone (Len+Dex) Treatment in Patients (Pts) with Relapsed or Refractory Multiple Myeloma (RRMM)

Blood ◽  
2011 ◽  
Vol 118 (21) ◽  
pp. 2929-2929 ◽  
Author(s):  
Meletios Athanasios Dimopoulos ◽  
Mohamad Hussein ◽  
Arlene S Swern ◽  
Donna M. Weber
Keyword(s):  
Dose Reduction ◽  
Median Duration ◽  
Cox Regression ◽  
Incidence Rates ◽  
Long Term Outcomes ◽  
Cox Regression Analysis ◽  
Β2 Microglobulin ◽  
Grade 3

Abstract Abstract 2929 Background: Two pivotal phase 3 trials (MM-009 and MM-010) randomized 704 pts to assess Len+Dex vs placebo plus dexamethasone (Dex) in RRMM. The results demonstrated the significant overall survival (OS) benefit of Len+Dex vs Dex (38.0 vs 31.6 mos; p =.045) despite crossover of 48% of Dex pts to the Len+Dex arm at unblinding or progression (Dimopoulos MA et al. Leukemia 2009;23 :2147-52). This is an analysis of the long-term outcomes and safety of continuous Len+Dex treatment. Methods: This retrospective analysis pooled pts treated with Len+Dex in MM-009 and MM-010, with a median follow-up of 48 mos for surviving pts. A subset of pts with progression-free survival (PFS) of ≥ 2 yrs was selected. Prognostic factors for PFS within this subgroup of pts were identified by incorporating all baseline covariates with a univariate p <.15 into multivariate Cox regression analyses, and all possible models were fitted using SAS 9.2. Adverse event (AE) management and dosing for pts with PFS ≥ 2 yrs was compared with that for all pts treated with Len+Dex in order to evaluate if differences in pt management could contribute to better clinical outcomes. Incidence rates for AEs were calculated using person-yrs of follow-up. Data from pts who received Len+Dex in MM-009 (up to July 23, 2008) and MM-010 (up to March 2, 2008) were included in this analysis. Results: Among all pts treated with Len+Dex (N = 353), a total of 64 pts (18%) achieved PFS ≥ 2 yrs. For these 64 pts, median age was 61 yrs (range 33–81 yrs), 48% received > 1 prior therapy, and 57% had β2-microglobulin levels of ≥ 2.5mg/L. All these pts achieved a ≥ partial response (PR), including 67% with a ≥ very good PR and 50% with a complete response. Median time to first response was 2.8 mos (range 1.9–18.2 mos) which is comparable to that of all pts treated with Len+Dex. Median duration of response was not reached vs 15.5 mos, respectively. With median follow-up of 49 mos, the 3-yr OS is 94% (95% confidence interval [CI] 88.06–99.94). In a multivariate Cox regression analysis, shorter PFS was predicted with higher baseline β2-microglobulin level (hazard ratio [HR] 1.07; 95% CI 1.02–1.12) and lower hemoglobin (HR 0.91; 95% CI 0.84–0.99), as well as a higher number of prior therapies (HR 1.18; 95% CI 1.02–1.37). The median duration of treatment was longer among pts with PFS ≥ 2 yrs vs all pts treated with Len+Dex (46.2 mos [range 11.3–58.3] vs 9.8 mos [range 3.8–24], respectively). A higher proportion of these pts had a dose reduction within 12 mos after start of therapy vs all pts treated with Len+Dex (57% vs 24%, respectively). Dex dose was reduced in 27% of pts with PFS ≥ 2 yrs. Among pts without Len dose reduction, 31% had Dex dose reduction within the first 4 cycles. Granulocyte colony-stimulating factor was administered for the management of neutropenia in 39% of pts with PFS ≥ 2 yrs vs 25% of all pts treated with Len+Dex. Low discontinuation rates due to AEs were observed in both groups (12.5% vs 18.7%, respectively). The incidence rates per 100 person-yrs for grade 3–4 AEs among pts with PFS ≥ 2 yrs vs all pts treated with Len+Dex (N = 353) were, respectively: neutropenia (14.9 vs 29), febrile neutropenia (0.9 vs 2.3), thrombocytopenia (2.6 vs 10.2), anemia (4.4 vs 9.5), infection (11.8 vs 20.9), deep vein thrombosis/pulmonary embolism (2.2 vs 8.9), fatigue (2.2 vs 5.5), neuropathy (1.8 vs 3.4), and gastrointestinal disorders (5.3 vs 9.7). The incidence rates per 100 person-yrs for second primary malignancies (SPMs) were similar to that of all pts treated with Len+Dex, respectively: myelodysplastic syndromes (0 vs 0.4), solid tumor (1.8 vs 1.3), and non-melanoma skin cancer (2.3 vs 2.4). These rates are comparable to those expected in people aged > 50 yrs generally (1.4 per 100 person-yrs) (Altekruse SF et al. SEER Cancer Statistics Review, 1975–2007). Conclusions: Long-term continuous therapy with Len+Dex has demonstrated efficacy and is generally well tolerated in pts with RRMM. Overall, 18% of patients treated with Len+Dex achieve a PFS of > 2 yrs. No increase in SPMs was observed with long term Len+Dex therapy. With appropriate AE management, the incidence rates of grade 3–4 AEs remain low. This analysis demonstrates the value of AE management and the need for appropriate dose-adjustment to maintain tolerability, allowing pts to remain on therapy for maximal benefit. Disclosures: Dimopoulos: Celgene Corporation: Consultancy, Honoraria. Hussein:Celgene Corporation: Employment. Swern:Celgene Corporation: Employment. Weber:Celgene Corporation: Honoraria, Research Funding.

Abstract 13621: Predictors of Short-term and Long-term Clinical Outcomes After an Acute Atrial Fibrillation or Flutter Admission

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Jia Yi Anna Ne ◽  
Tu Nguyen ◽  
Stuart Thomas ◽  
Joanne Han ◽  
Emma Charlston ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Cox Regression ◽  
Primary Diagnosis ◽  
Chronic Obstructive ◽  
Post Discharge ◽  
Obstructive Pulmonary Disease ◽  
Mortality And Morbidity ◽  
Westmead Hospital

Introduction: Atrial fibrillation (AF) is a major cause of mortality and morbidity globally. This study aims to identify predictors of AF-related rehospitalization following an acute AF/flutter admission. Methods: Patients admitted to Westmead Hospital with a primary diagnosis of AF/flutter from 1 May 2014 to 31 May 2018 were included and followed up until 31 May 2019. We defined AF-related rehospitalization as an admission due to recurrent AF/flutter, congestive heart failure, stroke and/or myocardial infarction. Multivariable logistic regression was used to identify independent predictors of 30-day outcomes. Cox regression was used to identify independent predictors of long-term outcomes: first AF-related rehospitalization or all-cause mortality. Results: Of 1664 consecutive patients admitted with AF/flutter, 55.8% were male and the median age was 68.0. At 30 days, 123 (7.4%) had an AF-related readmission (110 for AF/flutter and 13 for other cardiovascular outcomes). During a mean follow-up period of 2.1 ± 1.5 years, 683 (41.0%) of patients had at least one AF-related rehospitalization (38.1%, n=634) or died (2.9%, n=49). Chronic kidney disease (CKD) (OR 1.94, 95% CI 1.07 - 3.50) was an independent predictor of 30-day AF-related rehospitalization. Age (HR 1.01, 95% CI 1.01 - 1.02 for each additional year), initial admission via emergency (HR 1.29, 95% CI 1.08 - 1.54), CKD (HR 1.64, 95% CI 1.24 - 2.18), chronic obstructive pulmonary disease (HR 1.42, 95% CI 1.09 - 1.83) and the presence of additional comorbidities (HR 1.38, 95% CI 1.04 - 1.83) were independent predictors of first AF-related rehospitalization or death (all p <0.05). Conclusion: AF-related rehospitalization is common following an acute AF/flutter admission. AF/flutter patients with comorbidities, particularly renal and pulmonary diseases, are at high risk of readmission. Such patients could be targeted for increased surveillance and additional post-discharge support to prevent readmission.

scholarly journals Atrial Substrate Underlies the Recurrence after Catheter Ablation in Patients with Atrial Fibrillation

2020 ◽  
Vol 9 (10) ◽  
pp. 3164
Author(s):  
Yong-Soo Baek ◽  
Jong-Il Choi ◽  
Yun Gi Kim ◽  
Kwang-No Lee ◽  
Seung-Young Roh ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Cox Regression ◽  
Long Term Outcomes ◽  
Recurrence Rates ◽  
Index Procedure ◽  
Cox Regression Analysis ◽  
Circumferential Pulmonary Vein Isolation

Prediction of recurrences after catheter ablation of atrial fibrillation (AF) remains challenging. We sought to investigate the long-term outcomes after AF catheter ablation. A total of 2221 consecutive patients who underwent catheter ablation for symptomatic AF were included in this study (mean age 55 ± 11 years, 20.3% women, and 59.0% paroxysmal AF). Extensive ablation, in addition to circumferential pulmonary vein isolation, was more often accomplished in patients with non-paroxysmal AF than in those with paroxysmal AF (87.4% vs. 25.3%, p < 0.001). During a median follow-up of 54 months, sinus rhythm (SR) was maintained in 67.1% after index procedure. After redo procedures in 418 patients, 83.3% exhibited SR maintenance. Recurrence rates were similar for single and multiple procedures (17.4% vs. 16.7%, p = 0.765). Subanalysis showed that the extent of late gadolinium enhancement (LGE), as assessed by cardiac magnetic resonance, is greater in patients with recurrence than in those without recurrence (36.2 ± 23.9% vs. 21.8 ± 13.7%, p < 0.001). Cox-regression analysis revealed that non-paroxysmal AF (hazard ratio (HR) 2.238, 95% confidence interval (CI) 1.905–2.629, p < 0.001), overweight (HR 1.314, 95% CI 1.107–1.559, p = 0.020), left atrium dimension ≥ 45 mm (HR 1.284, 95% CI 1.085–1.518, p = 0.004), AF duration (HR 1.020 per year, 95% CI 1.006–1.034, p = 0.004), and LGE ≥ 25% (HR 1.726, 95% CI 1.330–2.239, p < 0.001) are significantly associated with AF recurrence after catheter ablation. This study showed that repeated catheter ablation improves the clinical outcomes of patients with non-paroxysmal AF, suggesting that AF substrate based on LGE may underpin the mechanism of recurrence after catheter ablation.

scholarly journals Long-Term Outcomes of IgG4-Related Ophthalmic Disease in a Chinese IgG4-Related Disease Cohort

2021 ◽  
Vol 8 ◽  
Author(s):  
Linyang Gan ◽  
Xuan Luo ◽  
Yunyun Fei ◽  
Linyi Peng ◽  
Jiaxin Zhou ◽  
...  
Keyword(s):  
Regression Analysis ◽  
Combination Therapy ◽  
Cox Regression ◽  
Long Term Outcomes ◽  
Cox Regression Analysis ◽  
Ocular Lesions ◽  
Ophthalmic Disease ◽  
Risk Of Relapse

Purpose: To define the treatment response and long-term outcomes of a large IgG4-related ophthalmic disease (IgG4-ROD) cohort.Methods: A total of 132 patients with a minimum follow-up of 1 year were included in this study. Demographic, clinical, and laboratory data were collected. Treatment response was assessed by the IgG4-RD responder index (IgG4-RD RI). Risk factors for relapse were analyzed with the multivariate Cox regression analysis.Results: The median follow-up time was 39 months. Lacrimal gland involvement was detected in 87.9% of cases. Extraocular muscles, the trigeminal nerve, and other soft tissue were affected in 25.8, 6.1, and 18.2% of patients. The relapse rate of watchful waiting, glucocorticoid monotherapy, immunosuppressant monotherapy, and combination therapy was 50.0, 51.7, 50.0, and 26.7% (p = 0.038), respectively. The combination therapy group exhibited shorter glucocorticoids therapy duration (36 vs. 48 months, p = 0.009) and maintenance period (24 vs. 42 months, p = 0.003). At the 6th month, the median IgG4-RD RI declined from 12 to 1 and 105 (79.5%) patients achieved complete response (CR). Relapse occurred in 49 (37.1%) patients. The multivariate Cox regression analysis exhibited that CR at the 6th month was an independent protective factor for relapse. Patients with multiple ocular lesions suffered from a higher risk of relapse. No patient had severe adverse reactions to the treatment in this study.Conclusion: Relapse was common in patients with IgG4-ROD. Patients receiving combination therapy showed a lower relapse rate and a shorter glucocorticoids therapy period. The presence of multiple ocular lesions was associated with a higher risk of relapse. CR at the 6th month might be a predictor for a better prognosis in IgG4-ROD. Thus, a more aggressive regimen should be prescribed for patients with a poor initial response.

Long-Term Clinical Outcome in Elderly Patients Undergoing Mitral Valve Repair

2020 ◽  
Author(s):  
Julia Götte ◽  
Armin Zittermann ◽  
Kavous Hakim-Meibodi ◽  
Masatoshi Hata ◽  
Rene Schramm ◽  
...  
Keyword(s):  
Mitral Valve ◽  
General Population ◽  
Elderly Patients ◽  
Cox Regression ◽  
Functional Class ◽  
Tricuspid Valve Repair ◽  
Valve Repair ◽  
Cox Regression Analysis

Abstract Background Long-term data on patients over 75 years undergoing mitral valve (MV) repair are scarce. At our high-volume institution, we, therefore, aimed to evaluate mortality, stroke risk, and reoperation rates in these patients. Methods We investigated clinical outcomes in 372 patients undergoing MV repair with (n = 115) or without (n = 257) tricuspid valve repair. The primary endpoint was the probability of survival up to a maximum follow-up of 9 years. Secondary clinical endpoints were stroke and reoperation of the MV during follow-up. Univariate and multivariable Cox regression analysis was performed to assess independent predictors of mortality. Mortality was also compared with the age- and sex-adjusted general population. Results During a median follow-up period of 37 months (range: 0.1–108 months), 90 patients died. The following parameters were independently associated with mortality: double valve repair (hazard ratio, confidence interval [HR, 95% CI]: 2.15, 1.37–3.36), advanced age (HR: 1.07, CI: 1.01–1.14 per year), diabetes (HR: 1.97, CI: 1.13–3.43), preoperative New York Heart Association (NYHA) functional class (HR: 1.41, CI: 1.01–1.97 per class), and operative creatininemax levels (HR: 1.32, CI: 1.13–1.55 per mg/dL). The risk of stroke in the isolated MV and double valve repair groups at postoperative year 5 was 5.0 and 4.1%, respectively (p = 0.65). The corresponding values for the risk of reoperation were 4.0 and 7.0%, respectively (p = 0.36). Nine-year survival was comparable with the general population (53.2 vs. 53.1%). Conclusion Various independent risk factors for mortality in elderly MV repair patients could be identified, but overall survival rates were similar to those of the general population. Consequently, our data indicates that repairing the MV in elderly patients represents a suitable and safe surgical approach.

scholarly journals The Role of Hydraulic Silicate Cements on Long-Term Properties and Biocompatibility of Partial Pulpotomy in Permanent Teeth

Materials ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 305
Author(s):  
Chung-Min Kang ◽  
Saemi Seong ◽  
Je Seon Song ◽  
Yooseok Shin
Keyword(s):  
Regression Analysis ◽  
Cox Regression ◽  
Antimicrobial Properties ◽  
Permanent Teeth ◽  
Success Rates ◽  
Pulp Tissue ◽  
Cox Regression Analysis ◽  
Clinical Variables

The use of hydraulic silicate cements (HSCs) for vital pulp therapy has been found to release calcium and hydroxyl ions promoting pulp tissue healing and mineralized tissue formation. The present study investigated whether HSCs such as mineral trioxide aggregate (MTA) affect their biological and antimicrobial properties when used as long-term pulp protection materials. The effect of variables on treatment outcomes of three HSCs (ProRoot MTA, OrthoMTA, and RetroMTA) was evaluated clinically and radiographically over a 48–78 month follow-up period. Survival analysis was performed using Kaplan–Meier survival curves. Fisher’s exact test and Cox regression analysis were used to determine hazard ratios of clinical variables. The overall success rate of MTA partial pulpotomy was 89.3%; Cumulative success rates of the three HSCs were not statistically different when analyzed by Cox proportional hazard regression analysis. None of the investigated clinical variables affected success rates significantly. These HSCs showed favorable biocompatibility and antimicrobial properties in partial pulpotomy of permanent teeth in long-term follow-up, with no statistical differences between clinical factors.

Long-term outcomes of kidney donors with fibromuscular dysplasia

2021 ◽  
Author(s):  
Horacio E Adrogue ◽  
Andrew Evans ◽  
Dina N Murad ◽  
Hana Nguyen ◽  
Sean A Hebert ◽  
...  
Keyword(s):  
Fibromuscular Dysplasia ◽  
Cox Regression ◽  
Arterial Disease ◽  
Similar Proportion ◽  
Long Term Outcomes ◽  
No Donor ◽  
Kidney Donors ◽  
Cox Regression Analysis ◽  
Donor Evaluation

Abstract Background Fibromuscular dysplasia (FMD) is a non-atherosclerotic systemic arterial disease that is not infrequently discovered during kidney donor evaluation. Current guidelines do not provide recommendations regarding the use of kidneys from donors with FMD and there is a paucity of data on the outcomes of these donors. Methods The Renal and Lung Living Donor Evaluation (RELIVE) study addressed long-term outcomes of 8922 kidney donors who donated between 1963 and 2007. We compared the development of hypertension, cardiovascular disease (CVD), proteinuria and reduced estimated glomerular filtration rate (eGFR) in 113 kidney donors with FMD discovered during donor evaluation versus 452 propensity score matched donors without FMD. Outcomes modeling with logistic and Cox regression analysis and Kaplan–Meier statistics were performed. Results Donors with FMD were older (51 versus 39 years), were more likely to be women (80% versus 56%) and had a higher systolic blood pressure at donation (124.7 versus 121.3 mmHg) (P &lt; 0.05 for all). After a mean ± standard deviation follow-up of 15.5 ± 8.9 years, a similar proportion of donors with and without FMD were alive, and developed hypertension (22.2% versus 19.8%), proteinuria (20.6% versus 13.7%) and CVD (13.3% versus 13.5%). No donor with FMD developed an eGFR &lt;30 mL/min/1.73 m2 or end-stage kidney disease. The multivariable risk of mortality, CVD and renal outcomes in donors with FMD was not elevated. Conclusions Kidney donors with FMD appear to do well, do not appear to incur increased risks of hypertension, proteinuria, CVD or reduced eGFR, and perhaps carefully selected candidates with FMD can safely donate as long as involvement of other vascular beds is ruled out.

Sign in / Sign up

Export Citation Format

Share Document