150 research outputs found
Association of unicuspid unicommissural aortic valve and complex congenital heart disease depicted by cardiac magnetic resonance
A 12-year-old male child was referred for follow-up cardiac magnetic resonance (CMR) of complex
congenital heart disease, characterized by aortic decoarctation, interventricular and interatrial septal
defects (VSD and ASD) closure and bicuspid aortic valve.peer-reviewe
Surgical Repair of Postinfarction Ventricular Septal Rupture: Systematic Review and Meta-Analysis.
Background. Ventricular septal rupture (VSR) is a rare but life-threatening complication after acute myocardial infarction. Although surgical correction is challenging and associated with high mortality, it remains the treatment of choice. This systematic review and meta-analysis aimed to evaluate the early outcome of surgical VSR repair.Methods. We searched electronic databases from January 1998 to February 2020. Studies reporting patients undergoing surgical treatment for VSR were analyzed. The primary outcome assessed was operative mortality. Differences were expressed as odds ratios (ORs) with 95% confidence intervals (CIs) to assess the relationships of predefined surgical variables and clinical prognosis.Results. A total of 6361 adult patients from 41 studies were identified. Operative mortality was 38.2%. Pooled ORs showed increased odds of operative mortality in patients with preoperative or perioperative intraaortic balloon pump insertion (OR = 3.48; 95% CI, 3.01-4.02; P >= .001), right ventricular dysfunction (OR = 2.85; 95% CI, 1.47-5.52; P = .002), posterior VSR (OR = 1.73; 95% CI, 1.30-2.31; P >= .001), and emergency surgery (OR = 3.79; 95% CI, 2.52-5.72; P >= .001). Temporal trend evaluation revealed no difference over time in the operative mortality rate; it was 34% in both time-related groups (1971-2000 versus 2001-2018).Conclusions. Ventricular septal rupture repair has a high operative mortality. Patients with preoperative or perioperative intraaortic balloon pump support, right ventricular dysfunction at presentation, or posterior defects, and those undergoing emergent VSR correction have increased odds of operative mortality. (C) 2021 by The Society of Thoracic Surgeons. Published by Elsevier Inc
Impact of blood glucose variability on carotid artery intima media thickness and distensibility in type 1 diabetes mellitus
Aims. Diabetes mellitus is characterized by structural and functional alterations of the large- and medium-size arteries. Whether blood glucose variability, i.e. the glycemic oscillations occurring during the 24-h period, represents a risk factor for vascular alterations additional to and independent on HbA1c in type 1 diabetes mellitus is still undefined. The present study was carried out with the aim at investigating the impact of different measures of blood glucose variability on arterial structure and function. We studied 17 non-complicated type 1 diabetic patients (11 males, six females) with an age of 40.8 ± 7.6 years (mean ± SD). In each patient, 24-h glucose profile was obtained by continuous glucose monitoring system and glucose variability was expressed as mean ± SD of 24-h blood glucose levels, mean amplitude of glycemic excursions and postprandial hyperglycemic spikes. Arterial structure and function was measured as carotid IMT and stiffness. Major findings. The different approaches to assessing blood glucose variability well correlated between and with HbA1c. Carotid IMT and stiffness showed significant correlations with age, blood pressure, heart rate and daily insulin intake but a non- significant correlation with blood glucose variability. Principal conclusion. Thus, in type 1 diabetes mellitus, measures of glycemic variability are useful in predicting both actual and long-lasting glycemic control. In absence of diabetes-related complications and of any intima-media thickness alterations, the major predictors of arterial distensibility are represented by traditional risk factors beside glycemic 24-h control. © 2013 Scandinavian Foundation for Cardiovascular Researc
Exploring in vivo multiple sclerosis brain microstructural damage through T1w/T2w ratio: a multicentre study
Objectives: To evaluate white matter and grey matter T1-weighted (w)/T2w ratio (T1w/T2w ratio) in healthy controls and patients with multiple sclerosis, and its association with clinical disability. Methods: In this cross-sectional study, 270 healthy controls and 434 patients with multiple sclerosis were retrospectively selected from 7 European sites. T1w/T2w ratio was obtained from brain T2w and T1w scans after intensity calibration using eyes and temporal muscle. Results: In healthy controls, T1w/T2w ratio increased until 50-60 years both in white and grey matter. Compared with healthy controls, T1w/T2w ratio was significantly lower in white matter lesions of all multiple sclerosis phenotypes, and in normal-appearing white matter and cortex of patients with relapsing-remitting and secondary progressive multiple sclerosis (pâ€0.026), but it was significantly higher in the striatum and pallidum of patients with relapsing-remitting, secondary progressive and primary progressive multiple sclerosis (pâ€0.042). In relapse-onset multiple sclerosis, T1w/T2w ratio was significantly lower in white matter lesions and normal-appearing white matter already at Expanded Disability Status Scale (EDSS) <3.0 and in the cortex only for EDSS â„3.0 (pâ€0.023). Conversely, T1w/T2w ratio was significantly higher in the striatum and pallidum for EDSS â„4.0 (pâ€0.005). In primary progressive multiple sclerosis, striatum and pallidum showed significantly higher T1w/T2w ratio beyond EDSS=6.0 (pâ€0.001). In multiple sclerosis, longer disease duration, higher EDSS, higher brain lesional volume and lower normalised brain volume were associated with lower lesional and cortical T1w/T2w ratio and a higher T1w/T2w ratio in the striatum and pallidum (ÎČ from -1.168 to 0.286, pâ€0.040). Conclusions: T1w/T2w ratio may represent a clinically relevant marker sensitive to demyelination, neurodegeneration and iron accumulation occurring at the different multiple sclerosis phases
Association of Gray Matter Atrophy Patterns With Clinical Phenotype and Progression in Multiple Sclerosis
ObjectivesGay matter (GM) involvement is clinically relevant in multiple sclerosis (MS). Using source-based morphometry (SBM), we characterized GM atrophy and its 1-year evolution across different MS phenotypes.MethodsClinical and MRI data were obtained at 8 European sites from 170 healthy controls (HCs) and 398 patients with MS (34 with clinically isolated syndrome [CIS], 226 with relapsing-remitting MS [RRMS], 95 with secondary progressive MS [SPMS], and 43 with primary progressive MS [PPMS]). Fifty-seven HCs and 144 with MS underwent 1-year follow-up. Baseline GM loss, atrophy progression, and correlations with disability and 1-year clinical worsening were assessed.ResultsSBM identified 26 cerebellar, subcortical, sensory, motor, and cognitive GM components. GM atrophy was found in patients with MS vs HCs in almost all components (p range <0.001-0.04). Compared toHCs, patients withCIS showed circumscribed subcortical, cerebellar, temporal, and salience GM atrophy, while patients with RRMS exhibited widespread GM atrophy. Cerebellar, subcortical, sensorimotor, salience, and frontoparietal GM atrophy was found in patients with PPMS vs HCs and in patients with SPMS vs those with RRMS. At 1 year, 21 (15%) patients had clinically worsened. GM atrophy progressed in MS in subcortical, cerebellar, sensorimotor, and fronto-temporo-parietal components. Baseline higher disability was associated (R-2 = 0.65) with baseline lower normalized brain volume (beta = -0.13, p = 0.001), greater sensorimotor GM atrophy (beta = -0.12, p = 0.002), and longer disease duration (beta = 0.09, p = 0.04). Baseline normalized GM volume (odds ratio 0.98, p = 0.008) and cerebellar GM atrophy (odds ratio 0.40, p = 0.01) independently predicted clinical worsening (area under the curve 0.83).ConclusionGM atrophy differed across disease phenotypes and progressed at 1 year in MS. In addition to global atrophy measures, sensorimotor and cerebellar GM atrophy explained baseline disability and clinical worsening
ECMO for COVID-19 patients in Europe and Israel
Since March 15th, 2020, 177 centres from Europe and Israel have joined the study, routinely reporting on the ECMO support they provide to COVID-19 patients. The mean annual number of cases treated with ECMO in the participating centres before the pandemic (2019) was 55. The number of COVID-19 patients has increased rapidly each week reaching 1531 treated patients as of September 14th. The greatest number of cases has been reported from France (n = 385), UK (n = 193), Germany (n = 176), Spain (n = 166), and Italy (n = 136) .The mean age of treated patients was 52.6 years (range 16â80), 79% were male. The ECMO configuration used was VV in 91% of cases, VA in 5% and other in 4%. The mean PaO2 before ECMO implantation was 65 mmHg. The mean duration of ECMO support thus far has been 18 days and the mean ICU length of stay of these patients was 33 days. As of the 14th September, overall 841 patients have been weaned from ECMO
support, 601 died during ECMO support, 71 died after withdrawal of ECMO, 79 are still receiving ECMO support and for 10 patients status n.a. . Our preliminary data suggest that patients placed
on ECMO with severe refractory respiratory or cardiac failure secondary to COVID-19 have a reasonable (55%) chance of survival. Further extensive data analysis is expected to provide invaluable information on the demographics, severity of illness, indications and different ECMO management strategies in these patients
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