scholarly journals RV Pacing Percentage

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
Y.M Cha ◽  
M.D Metzl ◽  
R.C Canby ◽  
E.M Fruechte ◽  
M Duggal ◽  
...  

Abstract Introduction Chronic right ventricular pacing (RVP) has been associated with dyssynchrony, leading to increased mortality. However, there have been discrepancies in previous reports in the effect of RVP levels. Objective To sub-stratify mortality risk by age for different RVP level groups within a large real-world ICD cohort. Methods Optum® de-identified electronic health records were linked to the Medtronic Carelink data to identify dual chamber ICD recipients (2007–2017). RVP level was based on median daily pacing during the first 90 days post-implant and categorized either into groups with a cutoff of 40%, or with groups of 0–9%, 10–19%, 20–29%, 30–39%, 40–49%, and 50–100%. The endpoint was death more than 90 days post-implant. Kaplan-Meier survival curves, log-rank tests, and Cox regression were used to analyze the relationship between RVP and risk of death. Results Among 14,832 ICD patients (median age 67; 74.0% male), there were 2,602 deaths within 10 years after implant. In unadjusted comparisons, high RVP (>40%) increased the risk of death relative to low RVP (≤40%) (p<0.001). This effect remained significant in older cohort (≥67 years old at implant) (p<0.001), but not in younger cohort (<67 years old) (p=0.955) (Figure). After controlling for age, gender, pacing mode, MI, SCA, HF hospitalization, diabetes, and renal dysfunction, similar or increased risk was associated with higher pacing groups relative to the 0–9% pacing group in the older cohort, but not in the younger cohort. Conclusions Our data from a large contemporaneous real-world source suggests that older age or characteristics associated with age make patients more sensitive to chronic RVP effects. These results help reconcile differences observed in prior studies. Funding Acknowledgement Type of funding source: Private company. Main funding source(s): Medtronic, Inc.

2021 ◽  
Vol 10 (8) ◽  
pp. 1680
Author(s):  
Urban Berg ◽  
Annette W-Dahl ◽  
Anna Nilsdotter ◽  
Emma Nauclér ◽  
Martin Sundberg ◽  
...  

Purpose: We aimed to study the influence of fast-track care programs in total hip and total knee replacements (THR and TKR) at Swedish hospitals on the risk of revision and mortality within 2 years after the operation. Methods: Data were collected from the Swedish Hip and Knee Arthroplasty Registers (SHAR and SKAR), including 67,913 THR and 59,268 TKR operations from 2011 to 2015 on patients with osteoarthritis. Operations from 2011 to 2015 Revision and mortality in the fast-track group were compared with non-fast-track using Kaplan–Meier survival analysis and Cox regression analysis with adjustments. Results: The hazard ratio (HR) for revision within 2 years after THR with fast-track was 1.19 (CI: 1.03–1.39), indicating increased risk, whereas no increased risk was found in TKR (HR 0.91; CI: 0.79–1.06). The risk of death within 2 years was estimated with a HR of 0.85 (CI: 0.74–0.97) for TKR and 0.96 (CI: 0.85–1.09) for THR in fast-track hospitals compared to non-fast-track. Conclusions: Fast-track programs at Swedish hospitals were associated with an increased risk of revision in THR but not in TKR, while we found the mortality to be lower (TKR) or similar (THR) as compared to non-fast track.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
M Proietti ◽  
M Vitolo ◽  
S Harrison ◽  
G.A Dan ◽  
A.P Maggioni ◽  
...  

Abstract Introduction Frailty is a major health determinant for cardiovascular disease. Thus far, data on frailty in patients with atrial fibrillation (AF) are limited. Aims To evaluate frailty in a large contemporary cohort of European AF patients, the relationship with oral anticoagulant (OAC) prescription and with risk of all-cause death. Methods We analyzed patients enrolled in the ESC-EHRA EORP-AF General Long-Term Registry. A 38-items frailty index (FI) was derived from baseline characteristics according to the accumulation of deficits model proposed by Rockwood and Mitnitsky. All-cause mortality was the primary study outcome. Results Out of the 11096 AF enrolled patients, data for evaluating frailty were available for 6557 (59.1%) patients who have been included in this analysis (mean [SD] age 68.9 [11.5], 37.7% females). Baseline median [IQR] CHA2DS2-VASc and HAS-BLED were 3 [2–4] and 1 [1–2], respectively. At baseline, median [IQR] FI was 0.16 (0.12–0.23), with 1276 (19.5%) patients considered “not-frail” (FI<0.10), 4033 (61.5%) considered “pre-frail” (FI 0.10–0.25) and 1248 (19.0%) considered “frail” (FI≥0.25). Age, female prevalence, CHA2DS2-VASc and HAS-BLED progressively increased across the FI classes (all p<0.001). Use of OAC progressively increased among FI classes; after adjustments FI was not associated with OAC prescription (odds ratio [OR]: 1.09, 95% confidence interval [CI]: 0.98–1.19 for each 0.10 FI increase). Conversely, FI was directly associated with vitamin K antagonist (VKA) use (OR: 1.26, 95% CI: 1.18–1.34 for each 0.10 FI increase) and inversely associated with non-VKA OACs (NOACs) use (OR: 0.82, 95% CI: 0.77–0.88). FI was significantly correlated with CHA2DS2-VASc (Rho= 0.516, p<0.001). Over a median [IQR] follow-up of 731 [704–749] days, there were 569 (8.7%) all-cause death events. Kaplan-Meier curves [Figure] showed an increasing cumulative risk for all-cause death according to FI categories. A Cox multivariable analysis, adjusted for age, sex, type of AF and use of OAC, found that increasing FI as a continuous variable was associated with an increased risk of all-cause death (hazard ratio [HR]: 1.56, 95% CI: 1.40–1.73 for each 0.10 FI increase). An association with all-cause death risk was found across the FI categories (HR: 1.71, 95% CI: 1.23–2.38 and HR: 2.88, 95% CI: 2.02–4.12, respectively for pre-frail and frail patients compared to non-frail ones). FI was also predictive of all-cause death (c-index: 0.660, 95% CI: 0.637–0.682; p<0.001). Conclusions In a European contemporary cohort of AF patients the burden of frailty is significant, with almost 1 out of 5 patients found to be “frail”. Frailty influenced significantly the choice of OAC therapy and was associated with (and predictive of) all-cause death at follow-up. Kaplan-Meier Curves Funding Acknowledgement Type of funding source: Private company. Main funding source(s): Since the start of EORP programme, several companies have supported it with unrestricted grants.


2020 ◽  
pp. bjgp20X713981
Author(s):  
Fergus W Hamilton ◽  
Rupert Payne ◽  
David T Arnold

Abstract Background: Lymphopenia (reduced lymphocyte count) during infections such as pneumonia is common and is associated with increased mortality. Little is known about the relationship between lymphocyte count prior to developing infections and mortality risk. Aim: To identify whether patients with lymphopenia who develop pneumonia have increased risk of death. Design and Setting: A cohort study in the Clinical Practice Research Datalink (CPRD), linked to national death records. This database is representative of the UK population, and is extracted from routine records. Methods: Patients aged >50 years with a pneumonia diagnosis were included. We measured the relationship between lymphocyte count and mortality, using a time-to-event (multivariable Cox regression) approach, adjusted for age, sex, social factors, and potential causes of lymphopenia. Our primary analysis used the most recent test prior to pneumonia. The primary outcome was 28 day, all-cause mortality. Results: 40,909 participants with pneumonia were included from 1998 until 2019, with 28,556 having had a lymphocyte test prior to pneumonia (median time between test and diagnosis 677 days). When lymphocyte count was categorised (0-1×109/L, 1-2×109/L, 2-3×109/L, >3×109/L, never tested), both 28-day and one-year mortality varied significantly: 14%, 9.2%, 6.5%, 6.1% and 25% respectively for 28-day mortality, and 41%, 29%, 22%, 20% and 52% for one-year mortality. In multivariable Cox regression, lower lymphocyte count was consistently associated with increased hazard of death. Conclusion: Lymphopenia is an independent predictor of mortality in primary care pneumonia. Even low-normal lymphopenia (1-2×109/L) is associated with an increase in short- and long-term mortality compared with higher counts.


2013 ◽  
Vol 31 (15_suppl) ◽  
pp. 9049-9049
Author(s):  
Katherine G. Roth ◽  
Emily C. Zabor ◽  
Marta N. Colgan ◽  
Jedd D. Wolchok ◽  
Paul B. Chapman ◽  
...  

9049 Background: The natural history of BRAF and NRAS mutant (mut) melanoma (mel) has been described, but prognostic implications of KIT mut mel have not. Methods: We performed a single-center retrospective review of 180 patients (pts) enriched for mucosal, acral or chronic sun-damaged skin (CSD) mel and screened for KIT, BRAF, and NRAS mut from 4/07 - 4/10 as a part of a phase II imatinib study. Pt/disease characteristics were compared using the Kruskal-Wallis or Chi-square tests. Factors associated with outcomes were assessed by Kaplan-Meier methods and multivariable Cox regression. Results: Median age, 63.7 years; 54.4% male. Primary site: 40% mucosal, 29% acral, 22% CSD, 9% others. Mut rate: 18% KIT, 16% BRAF, 14% NRAS, 52% wild-type (wt). Pathologic subtype differed by genetic subgroup (p<.001) while age, gender, and stage did not (all p>0.05). 18/26 (69%) KIT mut pts received imatinib in the metastatic (met) setting; 6/18 received > 1 other KIT inhibitor. 3/25 (12%) BRAF mut pts received vemurafenib. 8/27 (30%) KIT mut, 4/27 (15%) BRAF mut, 6/20 (30%) NRAS mut, and 6/20 (30%) wt pts received ipilimumab. 149/180 (83%) pts developed mets at a median of 2.15 years (95% CI: 1.72, 2.72). Median follow-up (FU) of pts not developing mets was 3.91 yrs (range: 0.25, 14.34). Older age (HR: 1.02, 95% CI: 1.00, 1.03) and pathologic subtype (mucosal vs CSD HR: 1.70, 95% CI: 1.02, 2.84; non-CSD/unknown vs CSD HR: 2.05, 95% CI: 1.00, 4.21) were associated with increased risk of mets but not with time from mets to death. Of 149 pts who progressed, 123 (83%) died during FU. Median time from met to death was 1.21 years (95% CI: 0.91, 1.67). Median FU from time of mets among those alive at last FU was 2.53 yrs (range: 0.06, 6.85). Mut status including KIT mut was not associated with time to first met or time from met to death. Pts who received ipilimumab from time of first distant met had reduced risk of death (HR: 0.55, 95% CI: 0.36, 0.87) independent of mut status. No impact was observed with KIT inhibition. Conclusions: KIT mut status is not an independent predictor of time to mets or survival in pts with mets. Ipilimumab improved pt outcomes regardless of mut status. The lack of impact of KIT inhibitors is likely due to the heterogeneity of KIT mut in mel but does not preclude efficacy in appropriately selected pts.


2020 ◽  
Vol 38 (4_suppl) ◽  
pp. 3-3
Author(s):  
Grace Lee ◽  
Daniel W. Kim ◽  
Vinayak Muralidhar ◽  
Devarati Mitra ◽  
Nora Horick ◽  
...  

3 Background: While treatment-related lymphopenia (TRL) is common and associated with poorer survival in multiple solid malignancies, little data exists for anal cancer. We evaluated TRL and its association with survival in anal cancer patients treated with chemoradiation (CRT). Methods: A retrospective analysis of 140 patients with non-metastatic anal squamous cell carcinoma (SCC) treated with definitive CRT was performed. Total lymphocyte counts (TLC) at baseline and monthly intervals up to 12 months after initiating CRT were analyzed. Multivariable Cox regression analysis was performed to evaluate the association between overall survival (OS) and TRL, dichotomized by G4 TRL ( < 0.2k/μl) two months after initiating CRT. Kaplan-Meier and log-rank tests were used to compare OS between patients with versus without G4 TRL. Results: Median time of follow-up was 55 months. Prior to CRT, 95% of patients had a normal TLC ( > 1k/μl). Two months after initiating CRT, there was a median of 71% reduction in TLC from baseline and 84% of patients had TRL: 11% G1, 31% G2, 34% G3, and 8% G4. On multivariable Cox model, G4 TRL at two months was associated with a 3.7-fold increased risk of death (p = 0.013). On log-rank test, the 5-year OS rate was shorter in the cohort with versus without G4 TRL at two months (32% vs. 86%, p < 0.001). Conclusions: TRL is common and may be another prognostic marker of OS in anal cancer patients treated with CRT. The association between TRL and OS supports the hypothesis that host immunity plays an important role in survival among patients with anal cancer. These results support ongoing efforts of randomized trials underway to evaluate the potential role of immunotherapy in localized anal cancer.


2020 ◽  
Vol 5 (2) ◽  
pp. 123-129
Author(s):  
Zhe Kang Law ◽  
Timothy J England ◽  
Amit K Mistri ◽  
Lisa J Woodhouse ◽  
Lesley Cala ◽  
...  

Introduction Seizures are common after intracerebral haemorrhage. Tranexamic acid increases the risk of seizures in non-intracerebral haemorrhage population but its effect on post-intracerebral haemorrhage seizures is unknown. We explored the risk factors and outcomes of seizures after intracerebral haemorrhage and if tranexamic acid increased the risk of seizures in the Tranexamic acid for IntraCerebral Haemorrhage-2 trial. Patients and methods Seizures were reported prospectively up to day 90. Cox regression analyses were used to determine the predictors of seizures within 90 days and early seizures (≤7 days). We explored the effect of early seizures on day 90 outcomes. Results Of 2325 patients recruited, 193 (8.3%) had seizures including 163 (84.5%) early seizures and 30 (15.5%) late seizures (>7 days). Younger age (adjusted hazard ratio (aHR) 0.98 per year increase, 95% confidence interval (CI) 0.97–0.99; p = 0.008), lobar haematoma (aHR 5.84, 95%CI 3.58–9.52; p < 0.001), higher National Institute of Health Stroke Scale (aHR 1.03, 95%CI 1.01–1.06; p = 0.014) and previous stroke (aHR 1.66, 95%CI 1.11–2.47; p = 0.013) were associated with early seizures. Tranexamic acid did not increase the risk of seizure within 90 days. Early seizures were associated with worse modified Rankin Scale (adjusted odds ratio (aOR) 1.79, 95%CI 1.12–2.86, p = 0.015) and increased risk of death (aOR 3.26, 95%CI 1.98–5.39; p < 0.001) at day 90. Discussion and conclusion: Lobar haematoma was the strongest independent predictor of early seizures after intracerebral haemorrhage. Tranexamic acid did not increase the risk of post-intracerebral haemorrhage seizures in the first 90 days. Early seizures resulted in worse functional outcome and increased risk of death.


BMJ Open ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. e034209 ◽  
Author(s):  
Roman Hájek ◽  
Sebastian Gonzalez-McQuire ◽  
Zsolt Szabo ◽  
Michel Delforge ◽  
Lucy DeCosta ◽  
...  

Objectives and designA novel risk stratification algorithm estimating risk of death in patients with relapsed multiple myeloma starting second-line treatment was recently developed using multivariable Cox regression of data from a Czech registry. It uses 16 parameters routinely collected in medical practice to stratify patients into four distinct risk groups in terms of survival expectation. To provide insight into generalisability of the risk stratification algorithm, the study aimed to validate the risk stratification algorithm using real-world data from specifically designed retrospective chart audits from three European countries.Participants and settingPhysicians collected data from 998 patients (France, 386; Germany, 344; UK, 268) and applied the risk stratification algorithm.MethodsThe performance of the Cox regression model for predicting risk of death was assessed by Nagelkerke’s R2, goodness of fit and the C-index. The risk stratification algorithm’s ability to discriminate overall survival across four risk groups was evaluated using Kaplan-Meier curves and HRs.ResultsConsistent with the Czech registry, the stratification performance of the risk stratification algorithm demonstrated clear differentiation in risk of death between the four groups. As risk groups increased, risk of death doubled. The C-index was 0.715 (95% CI 0.690 to 0.734).ConclusionsValidation of the novel risk stratification algorithm in an independent ‘real-world’ dataset demonstrated that it stratifies patients in four subgroups according to survival expectation.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
K Oyama ◽  
R Giugliano ◽  
D Berg ◽  
C Ruff ◽  
M Tang ◽  
...  

Abstract Background Patients with atrial fibrillation (AF) have progressive cardiac structural changes that may be manifest by biomarkers of myocardial injury and hemodynamic stress. Baseline values of hsTnT (high-sensitivity troponin T), and NT-proBNP (N-terminal pro-brain natriuretic peptide) are associated with stroke risk and GDF-15 (growth differentiation factor-15) is associated with bleeding risk in patients with AF. However, the variability of these biomarkers over time and their associations with stroke or systemic embolism events (S/SEE) and bleeding in patients with AF remain unclear. Purpose We examined whether patients with AF demonstrate detectable changes in these biomarkers over 12 months and whether such changes from baseline to 12 months are associated with the subsequent risk of S/SEE (hsTnT, NT-proBNP) and bleeding (GDF-15). Methods ENGAGE AF-TIMI 48 was a multinational randomized trial of the oral factor Xa inhibitor edoxaban in patients with atrial fibrillation and a CHADS2 score ≥2. We performed a nested prospective biomarker study in 6062 patients, analyzing hsTnT, NT-proBNP, and GDF-15 at baseline and 12 months. Event rates were estimated and displayed with annualized event rates after 12 months. Results Of 6062 patients, hsTnT was dynamic in 46.9% (≥2 ng/L change), NT-proBNP in 51.9% (≥200 pg/L change), GDF-15 in 45.6% (≥300 pg/L change) between baseline and 12 months. In addition, 7.7% in hsTnT shifted from low-&gt;high categories, 9.4% in NT-proBNP from low-&gt;high, 10.6% in GDF-15 from low-&gt;high over 12 months (Figure). Elevated hsTnT (≥14 ng/L) and NT-proBNP (≥900 pg/L) either at baseline or at 12 months were independently associated with higher rates of subsequent S/SEE, and elevated GDF-15 (≥1800 pg/L) either at baseline or at 12 months were independently associated with higher rates of subsequent bleeding (P&lt;0.001 for each). In a Cox regression model, the absolute changes in log2-transformed hsTnT and NT-proBNP were associated with increased risk of S/SEE (adj-HR, 1.75; 95% CI, 1.38–2.23; p&lt;0.001, and adj-HR, 1.31; 95% CI, 1.11–1.55; p=0.002, respectively) and log2-transformed GDF-15 with bleeding (adj-HR, 1.42; 95% CI, 1.04–1.92; p=0.025). Analyzed in a categorical manner (Figure), patients who increased hsTnT or NT-proBNP between baseline and 12 months or had high hsTnT or NT-proBNP at both timepoints were at higher risk for S/SEE (adj-HR 1.87 and 1.50 for hsTnT; adj-HR 1.80 and 2.59 for NT-proBNP, respectively). Patients with persistently elevated GDF-15 appeared to be at higher risk for bleeding (adj-HR,1.35) (Figure). Conclusions Serial assessment of hsTnT, NT-proBNP, and GDF-15 revealed a substantial proportion of patients with AF had dynamic values. Patients with either persistently elevated or dynamic values were at higher risk of adverse clinical outcomes. Those biomarkers may play a role in personalizing preventive strategies in patients with AF based on risk. Change in biomarkers and event rate Funding Acknowledgement Type of funding source: Private company. Main funding source(s): Daiichi Sankyo Pharma Development


2021 ◽  
Vol 7 (3) ◽  
pp. 167-174
Author(s):  
Hasan Alinejad ◽  
◽  
Reza Vazirinejad ◽  
Ahmadreza Sayadi ◽  
Zeinab Hajaliakbari ◽  
...  

Background: Morbidity and mortality due to Coronavirus Disease 2019 (COVID-19) are mainly related to age and comorbidity diseases (hypertension, diabetes, cardiovascular disease, malignancies, etc.). These conditions are associated with poorer clinical outcomes and sometimes lead to long-term hospitalization. The current study aimed to investigate the relationship between COVID-19-induced mortality and various chronic diseases in patients admitted to Ali Ibn Abitaleb Hospital in Rafsanjan City, Iran, in 2020. Methods: In this retrospective, descriptive, and cross-sectional study, patients with COVID-19 referring to Ali Ibn Abitaleb Hospital in Rafsanjan City, Iran, from March 2020 to September 2020 were assessed. The required data were collected using patients’ records and telephone calls by a researcher-made checklist and analyzed by Independent Samples t-test, Chi-squared test, Fisher’s Exact test, Kaplan-Meier plots, and multivariate regression analysis in SPSS v. 20. Results: This study assessed 238 hospitalized patients with COVID-19. The risk of death was significantly higher in patients aged over 75 years; they were 5.5 times more prone to expire, compared to the youngest age group (P<0.001). Chronic diseases, such as hypertension, heart disease, lung disease, and various cancers were more prevalent in patients who expired, compared to those who survived (P≤0.05). Of the patients who died, 73.8% were transferred to the Intensive U (ICU), while only 7.5% of surviving patients were transferred to the ICU (P<0.001). Longer hospitalization was associated with an increased risk of death among patients with underlying diseases and hypertension (P<0.05). Conclusion: This study identified the role of chronic diseases and other important indicators in the survival of patients with COVID-19 who were admitted to a hospital in Rafsanjan. It is recommended that nurses and healthcare staff consider these findings in the care of patients with COVID-19.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
A Laguna ◽  
R Lahoz ◽  
A.F Fonseca ◽  
D.T Amari ◽  
P Ferber ◽  
...  

Abstract Background and purpose Elevated lipoprotein(a) [Lp(a)] has been associated with increased risk of cardiovascular disease (CVD). The objective of this real-world study was to characterize the patients in the United States (US) that have an Lp(a) assessment and those with Lp(a) levels ≥70 mg/dL. Methods This is a descriptive, non-interventional, retrospective cohort study of patients with at least one Lp(a) assessment and one-year continuous enrollment prior to index date (first Lp(a) assessment in the identification period i.e. 1/1/2008–30/6/2019) using the Optum® de-identified Electronic Health Record (EHR) dataset (2007–2019) in the US. Optum's longitudinal EHR repository include more than 700 Hospitals and 7000 Clinics; treating more than 95 million patients receiving care in the US. Results 26,997 patients (50.8% females) with ≥1 Lp(a) assessment having a mean (SD) age of 52.6 (14.1) years were evaluated. Patient distribution across Lp(a) levels ≥30, ≥50, ≥70, and ≥90 mg/dL were 32.4%, 20.2%, 12.3%, and 6.6%, respectively. Patients with Lp(a) ≥70 mg/dL (N=3,314) had a mean (SD) age of 54.7 (13.2) years and 55.2% were female. The overall population that gets tested for Lp(a) and the subgroup of patients with Lp(a) ≥70 mg/dL had prior myocardial infarction (4.8% and 6.2%), prior ischemic stroke (2.2% and 2.5%), peripheral artery disease (6.7% and 8.4%), dyslipidaemia (72.6% and 80.9%), hypertension (53.0% and 60.9%), diabetes mellitus (23.5% and 26.8%) and chronic ischemic heart disease (19.6% and 24.6%) at index. The use of baseline medications included statins (37.3% and 49.1%), ACEi/ARBs (28.2% and 34.0%) and beta-blockers (19.0% and 23.6%) for the overall population and those patients with Lp(a) ≥70 mg/dL, respectively. The mean (SD) low-density lipoprotein cholesterol, triglycerides and total cholesterol levels were 109.8 (39.8) mg/dL [n=7,371], 138.3 (119.3) mg/dL [n=8,179] and 190.5 (46.8) mg/dL [n=8,181], respectively for overall population and 114.8 (41.5) mg/dL [n=980], 129.6 (80.5) mg/dL [n=1,063] and 195.9 (47.6) mg/dL [n=1,056] for patients with Lp(a) ≥70 mg/dL. Conclusions Of patients with an Lp(a) assessment in the US, more than 10% had Lp(a) levels ≥70 mg/dL. These patients were frequently diagnosed with dyslipidaemia and when reported showed elevated LDL-C and total cholesterol values. Further analyses are required to better understand any differences in patient characteristics and treatment of patients across Lp(a) levels. Funding Acknowledgement Type of funding source: Private company. Main funding source(s): Novartis Pharma AG


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