Epidemiology and impact of frailty in patients with atrial fibrillation in Europe

BACKGROUND

Frailty is a medical syndrome characterised by reduced physiological reserve and increased vulnerability to stressors. Data regarding the relationship between frailty and atrial fibrillation (AF) are still inconsistent.

OBJECTIVES

We aim to perform a comprehensive evaluation of frailty in a large European cohort of AF patients.

METHODS

A 40-item frailty index (FI) was built according to the accumulation of deficits model in the AF patients enrolled in the ESC-EHRA EORP-AF General Long-Term Registry. Association of baseline characteristics, clinical management, quality of life, healthcare resources use and risk of outcomes with frailty was examined.

RESULTS

Among 10,177 patients [mean age (standard deviation) 69.0 (11.4) years, 4,103 (40.3%) females], 6,066 (59.6%) were pre-frail and 2,172 (21.3%) were frail, whereas only 1,939 (19.1%) were considered robust. Baseline thromboembolic and bleeding risks were independently associated with increasing FI. Frail patients with AF were less likely to be treated with oral anticoagulants (OACs) (odds ratio 0.70, 95% confidence interval 0.55-0.89), especially with non-vitamin K antagonist OACs and managed with a rhythm control strategy, compared with robust patients. Increasing frailty was associated with a higher risk for all outcomes examined, with a non-linear exponential relationship. The use of OAC was associated with a lower risk of outcomes, except in patients with very/extremely high frailty.

CONCLUSIONS

In this large cohort of AF patients, there was a high burden of frailty, influencing clinical management and risk of adverse outcomes. The clinical benefit of OAC is maintained in patients with high frailty, but not in very high/extremely frail ones.

ASSOCIATION BETWEEN HASHIMOTO'S THYROIDITIS AND PAPILLARY THYROID CANCER: A SINGLE CENTER EXPERIENCE

PURPOSE

To investigate the association between papillary thyroid cancer (PTC) and Hashimoto's thyroiditis (HT).

DESIGN

This study is a retrospective study that conducted during 7 consecutive years with a median 119.5 months follow-up.

SUBJECTS AND METHOD

Patients who underwent thyroidectomy in Dokuz Eylül University Hospital during 7 consecutive years were included. Patients' demographics, biochemical, radiological, and pathological results were retrospectively assessed.

RESULTS

Four hundred sixty nine patients were evaluated. Among 469 patients who underwent thyroidectomy, 132 (28.1%) were malignant, while 182 patients were diagnosed with HT (38.8%). PTC was ranked first at 92.4% (n: 122). The prevalence of HT was 54.9% in patients with PTC and 33.1% in patients without PTC diagnosis (p<0.001). Younger age and the presence of HT were independently associated with PTC. The presence of HT was associated with increased risk of development of PTC (OR: 2.2, %95 CI: 1.4-3.5, p<0.001) but not with TNM stage or recurrence. Lymph node metastasis at presentation was the strongest predictor of recurrence (OR: 13.9, CI: 3.5-54.6, p<0.001).

CONCLUSIONS

HT was an independent risk factor for development of PTC. According to our findings, HT patients (particularly with nodular HT) should be observed carefully and thyroid fine needle aspiration biopsy (TFNAB) should be encouraged if necessary.

Nitric oxide for inhalation in ST-elevation myocardial infarction (NOMI): a multicentre, double-blind, randomized controlled trial

Aims

Inhalation of nitric oxide (iNO) during myocardial ischaemia and after reperfusion confers cardioprotection in preclinical studies via enhanced cyclic guanosine monophosphate (cGMP) signalling. We tested whether iNO reduces reperfusion injury in patients with ST-elevation myocardial infarction (STEMI; NCT01398384).

Methods and results

We randomized in a double-blind, placebo-controlled study 250 STEMI patients to inhale oxygen with (iNO) or without (CON) 80 parts-per-million NO for 4 h following percutaneous revascularization. Primary efficacy endpoint was infarct size as a fraction of left ventricular (LV) size (IS/LVmass), assessed by delayed enhancement contrast magnetic resonance imaging (MRI). Pre-specified subgroup analysis included thrombolysis-in-myocardial-infarction flow in the infarct-related artery, troponin T levels on admission, duration of symptoms, location of culprit lesion, and intra-arterial nitroglycerine (NTG) use. Secondary efficacy endpoints included IS relative to risk area (IS/AAR), myocardial salvage index, LV functional recovery, and clinical events at 4 and 12 months. In the overall population, IS/LVmass at 48-72 h was 18.0 ± 13.4% in iNO (n = 109) and 19.4 ± 15.4% in CON [n = 116, effect size -1.524%, 95% confidence interval (95% CI) -5.28, 2.24; P = 0.427]. Subgroup analysis indicated consistency across clinical confounders of IS but significant treatment interaction with NTG (P = 0.0093) resulting in smaller IS/LVmass after iNO in NTG-naïve patients (n = 140, P < 0.05). The secondary endpoint IS/AAR was 53 ± 26% with iNO vs. 60 ± 26% in CON (effect size -6.8%, 95% CI -14.8, 1.3, P = 0.09) corresponding to a myocardial salvage index of 47 ± 26% vs. 40 ± 26%, respectively, P = 0.09. Cine-MRI showed similar LV volumes at 48-72 h, with a tendency towards smaller increases in end-systolic and end-diastolic volumes at 4 months in iNO (P = 0.048 and P = 0.06, respectively, n = 197). Inhalation of nitric oxide was safe and significantly increased cGMP plasma levels during 4 h reperfusion. The Kaplan-Meier analysis for the composite of death, recurrent ischaemia, stroke, or rehospitalizations showed a tendency toward lower event rates with iNO at 4 months and 1 year (log-rank test P = 0.10 and P = 0.06, respectively).

Conclusions

Inhalation of NO at 80 ppm for 4 h in STEMI was safe but did not reduce infarct size relative to absolute LVmass at 48-72h. The observed functional recovery and clinical event rates at follow-up and possible interaction with nitroglycerine warrant further studies of iNO in STEMI.

Utilization, satisfaction and barriers of medical care among adults of Turkish descent in Germany

Background

The growing proportion of people with a migration background poses major challenges for public health and the health care system in Germany. People of Turkish descent represent the largest group within this specific population. The aim of this study was therefore to examine the use and satisfaction of medical services and barriers to health care access among adults of Turkish descent in Germany.

Methods

A cohort study of a group of nearly 1200 Turkish adults in Berlin and Essen constitutes the basis of this analysis. The baseline examination was carried out as part of the pretests of the German National Cohort study. This follow-up survey assessed utilization, satisfaction and subjectively perceived barriers in the German health care system, as well as socio-demography, lifestyle, health status and quality of life via self-report (paper based or online) in Turkish or German. Descriptive preliminary results are presented in this abstract.

Results

The first 287 participants interviewed until December 31, 2018 were on average 49 years old, with 64% being female. 90% of the participants had a family doctor and in the last 12 months, 17% were in a hospital for in-patient treatment and 23% in an emergency room. The use of screening programs varied from 15% (skin cancer screening) to 87% (mammography). The most frequently visited physician was the general practitioner (86%). The participants were satisfied regarding many aspects, with the best values for the communication with their doctor. However, 22% reported problems or barriers in the context of medical care in the last five years.

Conclusions

These preliminary results provide a first insight into the utilization behaviour among adults of Turkish descent, their satisfaction as well as barriers with the German health care system. However, possible consequences of our study should only be discussed after all analyses have been completed.

Key messages

This is one of the few cohort studies in a migrant population in Germany. Knowledge of barriers could provide indications of problems of adults of Turkish descent in the German health care system.

Strategies to enhance follow-up response in a cohort study with Berliners of Turkish descent

Background

Follow-up participation and retention are essential in long-term cohort studies. Loss to follow up may reduce the power of statistical analyses and external validity. The aim of this analysis was to evaluate the response after different contact methods in a cohort study with Berliners of Turkish descent and to compare characteristics of participants with those of non-participants.

Methods

In 2012-2013, Berliners with a Turkish migration background were recruited for this cohort study that initially aimed to examine recruitment strategies. The participants were contacted again 5 years later via postal mail and were asked to complete a questionnaire on the onset of new diseases and health care utilization. Written reminders, phone calls, and home visits were used to increase the response. Study documents were available in German and Turkish language. In descriptive analyses, we examined the response rate in relation to the recruitment approach. A regression analysis was conducted to investigate associations between individual, socioeconomic, and medical factors and the response.

Results

Out of 560 contacted persons, the neutral non-response (unknown address or death) was 13.6%. Of the remaining 484, 234 persons participated in the follow-up (women: 63.1%, mean age±SD: 49.8±12.6 years). The response was 16.1% after the first invitation letter, 24.2% after phone calls, 33.3% and 42.1% with a first and a second reminder letter, respectively, and 48.3% after home visits. The participants had more often German citizenship and a higher net income at baseline than non-participants. Migration generation, age, sex, education, and chronic diseases were not associated with participation (preliminary results).

Conclusions

In our participants with a migration background, every additional contact effort including home visits further increased cohort retention. Investing in comprehensive retention efforts may lead to studies that are more valid to examine the health of migrants.

Key messages

Investing in different contact efforts including reminder letters and home visits can improve follow-up response in longitudinal studies. Retention strategies should be used in longitudinal studies to increase statistical power and external validity.

Hypophosphatemic osteomalacia: a case simulating anklylosing spondylitis treated with anti-TNF therapy

In this case, a young male patient diagnosed as hypophosphatemic osteomalacia and ankylosing spondylitis (AS) will be assessed by literature. A 32-year-old male patient who had been previously diagnosed as ankylosing spondylitis and hypophosphatemic osteomalacia was admitted to our clinic. In the beginning of the disease, he complained of pain on the first metatarsal bone and low back. Sacroiliac magnetic resonance (MR) images were interpreted as sacroiliitis. He was diagnosed as AS, and referred to many hospitals and received several therapies. He did not benefit from the treatment and his complaints worsened. The human leukocyte antigen (HLA) B-27 test was negative and alkaline phosphatase level was high. Old femur fractures were reported in the whole body bone scintigraphy. In addition, the patient was diagnosed with osteomalacia. While the patient was receiving vitamin D, oral phosphate, anti-tumor necrosis factor therapy was added. Patient's diagnosis was reevaluated. His final diagnosis was hypophosphatemic osteomalacia instead of ankylosing spondylitis.

Platelet activation and microvascular injury in patients with ST-segment elevation myocardial infarction

BACKGROUND

Dual antiplatelet therapy reduces the risk of thrombotic complications after primary percutaneous coronary intervention (PCI).

AIM

To assess whether inhibition of platelet function attenuates microvascular damage in patients with ST-segment elevation myocardial infarction (STEMI).

METHODS

We studied 83 STEMI patients treated with primary PCI. Platelet aggregation was measured on admission (ADM) and 4 days later (D4) by light transmission aggregometry after stimulation with 0.5 mM of arachidonic acid and after stimulation with 5 and 20 μM of adenosine diphosphate (ADP) on treatment with dual antiplatelet therapy with aspirin and clopidogrel. Platelet-neutrophil aggregate (PNA) and platelet-monocyte aggregate (PMA) were analysed by flow cytometry. Contrast-enhanced magnetic resonance imaging was performed 2-4 days after STEMI to detect the area of perfusion defect at rest and to determine the size of microvascular obstruction. Microvascular obstruction was expressed as a percentage of infarct area.

RESULTS

Perfusion defect at rest was found in 56 (67.5%) patients whereas microvascular obstruction in 63 (75.9%) patients. Patients with perfusion defect at rest had on admission a significantly higher level of both PMA (7.0 vs. 4.5%, p = 0.004) and PNA (4.1 vs. 2.2%, p = 0.016), however there were no significant differences at D4. Platelet aggregation after stimulation with 5 μM of ADP on ADM was correlated (r = 0.37, p = 0.004) with microvascular obstruction area. Moreover, the higher the concentration of PMA(ADM) (r = 0.31, p = 0.016), PNA(ADM) (r = 0.34, p = 0.006) and PM(AD4) (r = 0.35, p = 0.005) the larger the size of microvascular obstruction. Infarct size (β = 0.43, 95% CI 0.19 to 0.67, p 〈 0.0001), TIMI < 3 after PCI (β = -0.27, 95% CI -1.90 to -0.11, p = 0.015) and PMA(D4) (β = 0.21, 95% CI 0.13 to 1.86, p = 0.032) independently influenced the size of microvascular obstruction (R2 = 0.60, p 〈 0.0001).

CONCLUSIONS

Excessive platelet activation during reperfusion in STEMI patients despite dual antiplatelet therapy is associated with greater microvascular impairment.

Evolution of myocardial perfusion during primary angioplasty in spontaneously reperfused infarct-related artery: impact on long-term clinical outcomes and left ventricular function recovery

BACKGROUND

TIMI myocardial perfusion grade (TMPG) reflects the integrity of microvasculature in ST-elevation myocardial infarction (STEMI). We sought to investigate whether TMPG evolution during primary angioplasty (pPCI) in spontaneously reperfused STEMI patients might predict long-term outcomes.

METHODS

392 patients with TIMI-3 flow before pPCI were analyzed. According to pre- and post-pPCI TMPG four reperfusion patterns were created: A. TMPG deterioration from grade 2/3 to 0/1 after pPCI (n = 55, 14.0%), B. TMPG-0/1 before and after pPCI (n = 111, 28.3%), C. TMPG improvement from grade 0/1 to 2/3 (n = 52, 13.3%), D. TMPG-2/3 before and after pPCI (n = 174, 44.4%). 30-day and 1-year mortality and heart failure requiring hospitalization (HF-hosp) were recorded. Left ventricular ejection fraction (LVEF) was measured at first day (1D) and after 6 months (6M).

RESULTS

1D-LVEF was similar in A-D groups. After 6M, LVEF improved in pattern D (7.5 ± 5.4%, p<0.01) and C (3.7 ± 3.4%, p < 0.05), deteriorated in pattern A (5.2 ± 3.9%, p<0.01) and did not change in pattern B. 6M-LVEF increased (p < 0.001) and frequency of 1-year HF-hosp decreased (p < 0.001) in stepwise fashion among A-D patterns. A 30-day mortality rate for A-D patterns was 9.1%, 2.7%, 1.9% and 0%, respectively (p < 0.001). 1-year mortality was 16.3%, 7.2%, 5.8% and 0.6%, respectively (p < 0.001). By multivariate analysis (c-index = 0.79), TMPG evolution was independent predictor of 1-year mortality (HR = 2.5, 95%CI 1.3-4.0, p = 0.006).

CONCLUSIONS

Maintaining TMPG-2/3 or improving TMPG-0/1 through pPCI in STEMI implies LV function recovery and good long-term survival. In contrast, substantial deterioration of TMPG is associated with lack of LV function recovery, and the highest mortality rate.

N-terminal pro-brain natriuretic peptide level in relation to epicardial and myocardial reperfusion in ST-segment elevation myocardial infarction treated with facilitated angioplasty

The aims of this study were firstly to evaluate the relations between N-terminal pro-brain natriuretic peptide (NT-proBNP) concentration after ST-segment elevation myocardial infarction (STEMI) and reperfusion injury, and secondly to assess the prognostic value of NT-proBNP.

METHODS AND RESULTS

We evaluated 202 consecutive patients with STEMI treated with facilitated angioplasty (PCI). TIMI flow, TIMI myocardial perfusion grade (TMPG) and ST-segment elevation resolution (iST) were assessed before O and 30 minutes (O30) after PCI. Enzymatic injury was expressed as an area under the curve of CK-MB release (AUC, [Uxh]). 48 hours after PCI, the concentration of NT-proBNP ([pg/ml]) and echocardiography-determined left ventricle ejection fraction (LVEF, [%]) were assessed. Death and heart failure (HF) requiring hospitalisation were recorded during a 1-year follow-up and defined as a composite endpoint. NT-proBNP concentration 48 hours after PCI was correlated with iST-O (p<0,001; r=0,48), iST-O30 (p<0,001; r=0,57), AUC (p<0,001; r=0,54) and LVEF (p<0,001; r=-0,5). Increasing quartiles of NT-proBNP were related to mortality (p=0,0012) as well as to composite endpoint (p=0,0012) at 1 year. 4th-quartile of NT-proBNP was independently associated with a composite endpoint at a 1-year follow-up.

CONCLUSIONS

NT-proBNP level after STEMI was moderately correlated with the degree of microvascular reperfusion and myocardial injury and function. NT-proBNP was independently associated with the frequency of death and HF requiring hospitalisation.

The degree of restored myocardial perfusion in acute myocardial infarction influences immediate and long-term results of primary coronary angioplasty

BACKGROUND

Tissue perfusion during acute myocardial infarction (AMI) may be assessed by means of the angiographic method -- TIMI myocardial perfusion (TMP). We hypothesised that TMP grade (TMPG) after primary coronary angioplasty (PCI) implicates immediate and long-term clinical outcomes.

METHODS

We studied 588 consecutive patients (mean age 58.7+/-10.8 years) with ST-segment elevation AMI treated with PCI. Infarct-related TMPG was evaluated before and after PCI. Myocardial injury was expressed as an area under the curve (AUC) of CK-MB release in the first 48 hours of reperfusion. Left ventricular ejection fraction (LVEF) was assessed by 2-dimensional echocardiography one day after PCI. Clinical end-points during a 12-month follow-up included death, recurrent MI and repeated revascularisation or hospitalisation. At the end of the follow-up, NYHA functional class was evaluated in all patients.

RESULTS

Before PCI, TMPG -3, -2 and -0/1 values were observed in 52 (8.8%), 77 (13.1%) and 459 (78.1%) patients, respectively. After PCI, TMPG-3, -2 and -0/1 were achieved in 196 (33.3%), 174 (29.6%) and 218 (37.1%) patients, respectively. Patients with TMPG-3, -2, and -0/1 had AUC of 10341+/-1194, 12330+/-1272 and 16718+/-1860 (U/l x h) (p<0.01) and LVEF of 53.6+/-8.6%, 45.5+/-9.5% and 41.7+/-10.4% (p<0.001), respectively. In-hospital mortality rate in patients with TMPG-3, -2 and -0/1 was 0%, 4% and 11.9%, respectively (p<0.001), and after 12-months - 2%, 6.3% and 16.5%, respectively (p<0.001). The event-free survival rate after 1-year was 83.2%, 74.1% and 65.1% respectively (p<0.001). The percentage of patients in NYHA class > or =2 was 10.2%, 16.1% and 20.6% (p=0.003), respectively.

CONCLUSIONS

The TIMI myocardial perfusion grade after primary coronary angioplasty in acute myocardial infarction effects left ventricular injury and function as well as early and long-term clinical outcome.