Left atrial strain and ventricular global longitudinal strain in cirrhotic patients using the new criteria of Cirrhotic Cardiomyopathy Consortium.

BACKGROUND: The new criteria of Cirrhotic Cardiomyopathy Consortium (CCC) propose the use of left ventricular global longitudinal strain (LV-GLS) for evaluation of systolic function in patients with cirrhosis. The aim of this study was to evaluate LV-GLS and left atrial (LA) strain in association with the severity of liver disease and to assess the characteristics of cirrhotic cardiomyopathy (CCM). METHODS: One hundred and thirty-five cirrhotic patients were included. Standard echocardiography and speckle tracking echocardiography (2D-STE) were performed, and dual X-ray absorptiometry was used to quantify the total and regional fat mass. CCM was defined, based on the criteria of CCC, as having advanced diastolic dysfunction, left ventricular ejection fraction ≤50% and/or a GLS <18%. RESULTS: LV-GLS lower or higher than the absolute mean value (22.7%) was not associated with mortality (logrank, p = 0.96). LV-GLS was higher in patients with Model for end stage liver disease (MELD) score ≥15 compared to MELD score <15 (p = 0.004). MELD score was the only factor independently associated with systolic function (LV-GLS <22.7% vs. ≥22.7%) (Odds Ratio:1.141, p = 0.032). Patients with CCM (n = 11) had higher values of estimated volume of visceral adipose tissue compared with patients without CCM (median: 735 vs. 641 cm3 , p = 0.039). On multivariable Cox regression analysis, MELD score [Hazard Ratio (HR):1.26, p < 0.001] and LA reservoir strain (HR:0.96, p = 0.017) were the only factors independently associated with the outcome. CONCLUSION: In our study, absolute LV-GLS was higher in more severe liver disease, and LA reservoir strain was significantly associated with the outcome in patients with end-stage liver disease.

The association of insulin resistance measured through the estimated glucose disposal rate with predictors of micro-and macrovascular complications in patients with type 1 diabetes.

BACKGROUND AND AIM: Insulin resistance (IR) is associated with a higher rate of type 1 diabetes (T1D) complications. We aimed to examine the relationship between estimated glucose disposal rate (eGDR), a readily available marker of IR in clinical practice and early predictor biomarkers of macrovascular and microvascular complications in patients with T1D. DESIGN: A cross-sectional study. METHODS: A total of 165 consecutive patients with T1D free of cardiovascular, eye, and renal complications were included in the study from 2016 to 2020. Participants were characterized as insulin resistant if their eGDR value was ≤ 8 mg/kg/min. Pulse wave velocity (PWV) and global longitudinal strain (GLS) were used as surrogates for subclinical atherosclerosis and left ventricular systolic dysfunction (LVSD), respectively. Four previously standardized tests based on the calculation of heart rate variability (HRV) were used to evaluate subclinical cardiac autonomic neuropathy (CAN). Early nephropathy was assessed by assessing urinary albumin to creatinine ratio (ACR). RESULTS: The population sample (n = 165) included a majority of female patients (63%) and had a median age of 32 years (24-43), median disease duration of 14 years ( ± 9.5-21.5), a median BMI value of 23.7 kg/m2 (21.4-26.6), an HbA1C of 7.2% (6.7-8.2) and median eGDR (lower values indicate higher insulin resistance) of 9.2 mg/kg/min (8.2-9.9), while 21.8% (n = 36) of the participants were characterized as insulin resistant. After adjustment for age, gender, and the duration of diabetes, the presence of IR was significantly associated with higher prevalence of subclinical atherosclerosis (OR:2.59, 95% CI: 1.06-6.30, p = 0.036), CAN (OR:3.07, 95% CI: 1.02-9.32, p = 0.047) and subclinical LVSD (OR: 4.9, 95% CI: 1.94-12.79, p = 0.001). No association was shown with ACR. CONCLUSIONS: In patients with T1D, insulin resistance, as measured by eGDR, correlates well with early CVD predictors and CAN. These associations appear independent of the effects of gender, aging, and disease duration.

Inadequate management of cardiovascular risk factors prior to admission for an acute coronary event.

Objectives: Optimal regulation of modifiable risk factors has been proposed as the standard of care both for primary and secondary prevention of cardiovascular disease (CVD). The aim of this study was to assess primary and secondary cardiovascular risk management received before admission for an acute coronary event. Methods: Data were analyzed for 185 consecutive hospitalized patients with a diagnosis of acute coronary syndrome (ACS) in the Cardiology department of a University hospital during an annual period (1/7/2019 until 30/6/2020). The study population was divided into two groups, the primary and secondary prevention subgroups, according to previous medical history of cardiovascular disease (CVD). Results: The mean age of the participants was 65.5 ±12.2 years and most patients were male (81.6%). Previous CVD was present in 51 patients (27.9%). Fifty-seven patients (30.8%) had a history of diabetes mellitus (DM) and 97 (52.4%) had a history of dyslipidemia. Hypertension was present in 101 (54.6%) patients. In the secondary prevention group, the LDL-C was on target in only 33.3% of the patients, while 20% patients did not use statins. The use of antiplatelet/anticoagulant agents was 94.5%. Among patients with diabetes, only 20% had been using a GLP-1 receptor agonist or/and an SGLT-2 inhibitor, while the HbA1c was on target in 47.8%. Twenty-five percent of the patients were active smokers. In the primary prevention group, the use of statins was overall low (25.8%) but more frequent in patients with diabetes and those without diabetes at very high-risk for CVD (47.1% and 32.1% respectively). The LDL-C was on target in less than 23.1% of the patients. The use of antiplatelet/anticoagulant agents was low (20.1%), but higher in those with diabetes (52.9%). In the diabetic group, HbA1c was on target in 61.8%. Active smoking was practiced by 46.3% of the patients. Conclusions: Our data show that in a substantial proportion of patients presenting with ACS, previous CVD prevention, both primary and secondary, fails to meet the current recommendations provided by scientific societies.

Severe iatrogenic hypoglycaemia requiring medical assistance is associated with concurrent prolongation of the QTc interval.

AIMS: Hypoglycaemia has been shown to exert arrhythmogenic effects. Herein, we explore the association between severe hypoglycaemia requiring medical assistance and the length of the QT interval in patients with diabetes. METHODS: Data from a prospective study, conducted in eight tertiary hospitals, which recorded cases of hypoglycaemia from patients with diabetes seeking treatment at emergency departments (ED) were analyzed. The patients' electrocardiograms (ECGs), were compared to those of non-hypoglycaemic diabetic individuals, matched for age, gender and duration of diabetes, obtained during their scheduled follow-up visits. The corrected QT intervals (QTc) were calculated blindly by two cardiologists. RESULTS: ECGs from 154 patients presenting with hypoglycaemia were analyzed and compared to 95 matched controls. The mean QTc interval was significantly longer in patients with hypoglycaemia than in controls (441.9 ± 48.2 vs. 401.0 ± 29.6 ms, p < 0.001) A significantly higher proportion of hypoglycaemic patients had an abnormally prolonged QTc (≥440 ms) compared to controls (49.4% vs. 11.6%, p < 0.001). Among patients with hypoglycaemia, there was a statistically significant but rather weak negative correlation between QTc interval and plasma glucose at presentation (r: -0.183, p = 0.02). CONCLUSIONS: In diabetic patients, hypoglycemia requiring medical assistance is associated with a significant prolongation of the QTc interval. The degree of this prolongation is associated with hypoglycaemia severity.

Association of Circulating Osteopontin Levels With Lower Extremity Arterial Disease in Subjects With Type 2 Diabetes Mellitus: A Cross-Sectional Observational Study.

Osteopontin (OPN) is involved in the atherosclerotic and inflammatory process. In this article, we examined the relationship between circulating OPN levels with lower extremity arterial disease (LEAD) in individuals with type 2 diabetes mellitus (T2DM). Seventy individuals with T2DM and 66 individuals without T2DM were recruited. Diagnosis of LEAD was based on the absence of triphasic waveform on the pedal arteries. Plasma OPN levels were determined by Luminex Multiplex immunoassay. LEAD was present in 34 (48.6%) patients with T2DM. In the diabetes cohort, individuals with LEAD had higher plasma OPN concentrations than those without LEAD (geometric mean [95% confidence intervals]; 43.4 [37.5-50.4] vs 26.1 [22.9-29.8] ng/mL, respectively, P < .001). Multivariable analysis showed that presence of LEAD independently associated with higher OPN levels in subjects with T2DM, with marginal statistical significance (P = .049). In both cohorts, plasma OPN concentrations were negatively associated with ankle-brachial index values (P < .05). In the total sample, there was a gradual increase of OPN levels across subgroups with triphasic, biphasic, and monophasic/blunted waveforms (P < .001). In conclusion, plasma OPN levels are associated with the presence and severity of LEAD in subjects with T2DM. Further studies are needed to investigate the role of OPN in the pathogenesis and progression of LEAD.

Integrase Strand Transfer Inhibitors and the Emergence of Immune Reconstitution Inflammatory Syndrome (IRIS).

BACKGROUND: Immune reconstitution inflammatory syndrome (IRIS) is a major concern when starting highly active anti-retroviral therapy (HAART) in new patients and especially late presenters. This study attempts to identify risk factors for IRIS and investigate whether certain treatment regimens increase the probability of IRIS for patients at risk. METHODS: Retrospective single-centre study of HIV patients treated with HAART. RESULTS: A total of 417 patients were included. We identified 45 cases of IRIS in 37 patients; an incidence of 13.3 cases over 1000 person-years. In univariate analysis, IRIS development was significantly associated with CDC stage, the presence of an opportunistic infection (OI) at diagnosis, CD4 cell count and viral load at diagnosis and HAART initiation and the use of integrase strand inhibitors (INSTIs). In multivariate analysis, INSTIs use (OR 2.89; 95%CI 1.26-6.64; p=0.012), CD4≤200/mm3 (OR 5.56; 95%CI 2.2-13.98; p<0.001), and the presence of an OI (OR 4.74; 95%CI 2.13-10.23; p=0.012) were independent risk factors. Among INSTI regimens, dolutegravir (OR 4.99 vs. NNRTI; 95%CI 1.11-22.55; p=0.037) and elvitegravir (OR 4.82 vs. NNRTI; 95%CI 1.43-16.19; p=0.011) seem to carry increased risk. Mortality was 18.9% (7/37) for IRIS patients compared to 9.7% (37/380) in the non-IRIS group. Mortality at any given time during follow-up was significantly higher in the IRIS group (HR 3.2; 95%CI 1.39-7.36; p=0.006). CONCLUSION: The use of INSTIs and especially DTG and EVG is associated with a higher probability for the development of IRIS in the background of late presentation and the presence of OIs. These data highlight the need for further research.

Hormonal imbalance in relation to exercise intolerance and ventilatory inefficiency in chronic heart failure.

BACKGROUND: Skeletal muscle wasting is associated with altered catabolic/anabolic balance and poor prognosis in patients with chronic heart failure (CHF). This study evaluated catabolic and anabolic abnormalities in relation to disease severity in CHF patients. METHODS: Forty-two stable CHF patients (34 men; aged 56±12 years, body mass index, 27±5 kg/m2) receiving optimal medical treatment underwent incremental symptom-limited cardiopulmonary exercise testing on a cycle ergometer. Blood samples were drawn within 10 days to determine serum cortisol, plasma adrenocorticotropin (ACTH), and serum dehydroepiandrosterone sulfate, insulin-like growth factor 1, growth hormone, and total testosterone in men. RESULTS: Patients with higher cortisol levels presented with impaired peak oxygen uptake (Vo2 peak: 18.3±3.9 vs. 14.2±3.7 ml/kg/min, p<0.01), ventilatory (Ve) response to exercise (Ve/carbon dioxide output [Vco2] slope: 36±6 vs 30±5, p<0.01), and chronotropic reserve ([peak heart rate [HR]--resting HR/220--age--resting HR]×100%: 40±19 vs. 58±18, p=0.01) compared with those with lower serum cortisol. Cortisol was inversely correlated with Vo2 peak, (r = -0.57; p<0.01) and was correlated with Ve/Vco2 slope (r = 0.47; p<0.01) and chronotropic reserve (r = 0.44; p = 0.017). In multivariate regression analysis, cortisol was an independent predictor of Vo2peak (R2 = 0.365, F = 12.5, SE = 3.4; p≤0.001) and Ve/Vco2 slope (R2 = 0.154; F = 8.5; SE = 5.96; p = 0.006), after accounting for age, body mass index, sex, CHF etiology, creatinine, left ventricular ejection fraction, and ACTH in all patients. In men, cortisol and dehydroepiandrosterone levels were both independent predictors of Vo2peak (R2 = 0.595, F = 24.53, SE = 2.76; p<0.001) after accounting also for all measured hormones, whereas cortisol remained the only independent predictor of Ve/Vco2 slope (R2 = 0.133; F = 6.1; SE = 6.2; p = 0.02). CONCLUSIONS: Enhanced catabolic status is significantly associated with exercise intolerance, ventilatory inefficiency, and chronotropic incompetence in CHF patients, suggesting a significant contributing mechanism to their limited functional status.