Bocelli A.,Pediatric Cardiology Unit |
Favilli S.,Pediatric Cardiology Unit |
Pollini I.,Pediatric Cardiology Unit |
Bini R.M.,Pediatric Cardiology Unit |
And 3 more authors.
Pediatric Cardiology | Year: 2013
Controversial data exist about the long-term results of aortic coarctation (AC) repair. This study explored the prevalence and predictors of left ventricular (LV) hypertrophy, late hypertension, and hypertensive response to exercise in 48 subjects (age, 15.1 ± 9.7 years) currently followed in the authors' tertiary care hospital after successful AC repair. Data on medical history, clinical examination, rest and exercise echocardiography, and ambulatory blood pressure monitoring were collected. The time from AC repair to follow-up evaluation was 12.9 ± 9.2 years. The prevalence of LV hypertrophy ranged from 23 to 38 %, based on the criteria used to identify LV hypertrophy, and that of concentric geometry was 17 %. One sixth of the patients without residual hypertension experienced late-onset hypertension. One fourth of those who remained normotensive without medication showed a hypertensive response to exercise. Age at AC repair was the strongest independent predictor of LV hypertrophy, defined using indexation either for body surface area (odds ratio [OR], 1.03; p = 0.0090) or for height2.7 (OR 1.02; p = 0.029), and it was the only predictor of late hypertension (OR 1.06; p = 0.0023) and hypertensive response to exercise (OR 1.09; p = 0.029). The risk of LV hypertrophy was 25 % for repair at the age of 3.4 years but rose to 50 and 75 % for repair at the ages of 5.9 and 8.4 years, respectively. Similar increases were found for the risk of late-onset hypertension and hypertensive response to exercise. A considerable risk of LV hypertrophy, late hypertension, and hypertensive response to exercise exists after successful AC repair. Older age at intervention is the most important predictor of these complications. © 2012 Springer Science+Business Media, LLC.
Mondillo S.,University of Siena |
Cameli M.,University of Siena |
Caputo M.L.,University of Siena |
Lisi M.,University of Siena |
And 3 more authors.
Journal of the American Society of Echocardiography | Year: 2011
Background: Systemic hypertension and type 2 diabetes mellitus are associated with impaired left atrial (LA) function, but whether LA functional abnormalities also occur in patients with hypertension and diabetes who have normal LA sizes is unknown. The aim of this study was to explore LA strain using speckle-tracking echocardiography in patients with hypertension or diabetes and normal LA size. Methods: LA strain was studied by speckle-tracking echocardiography in 155 patients with hypertension or diabetes with LA volume indexes < 28 mL/m 2 (83 with hypertension, 34 with diabetes, and 38 with both diabetes and hypertension) and 36 age-matched controls. The following indexes were measured: peak atrial longitudinal strain, time to peak atrial longitudinal strain, atrial longitudinal strain during early diastole and late diastole, and peak LA strain rate during ventricular systole, early diastole, and late diastole. Results: Peak atrial longitudinal strain was lower in patients with hypertension (29.0 ± 6.5%) and those with diabetes (24.7 ± 6.4%) than in controls (39.6 ± 7.8%) and further reduced in patients with diabetes and hypertension (18.3 ± 5.0%) (P <.0001). Similar results were found for atrial longitudinal strain during early diastole, atrial longitudinal strain during late diastole, and peak LA strain rate during ventricular systole and early diastole (P <.0001 for all). An inverse trend was found for time to peak atrial longitudinal strain, whereas no differences in peak LA strain rate during late diastole were observed. Two-way analysis of variance showed no interactions between hypertension and diabetes. In multivariate analyses, hypertension and diabetes were both independently associated with decreases in all LA strain and strain rate indexes, with the exception of peak LA strain rate during late diastole. Conclusions: LA deformation mechanics are impaired in patients with hypertension or diabetes with normal LA size. The coexistence of both conditions further impairs LA performance in an additive fashion. Speckle-tracking echocardiography may be considered a promising tool for the early detection of LA strain abnormalities in these patients. © 2011 by the American Society of Echocardiography.
Association of left ventricular longitudinal and circumferential systolic dysfunction with diastolic function in hypertension: A nonlinear analysis focused on the interplay with left ventricular geometry
Ballo P.,S. Maria Annunziata Hospital |
Nistri S.,Cardiology Service |
Cameli M.,University of Siena |
Papesso B.,Cardiology Service |
And 4 more authors.
Journal of Cardiac Failure | Year: 2014
Background The relationships of left ventricular (LV) longitudinal and circumferential systolic dysfunction with diastolic performance in hypertensive patients have never been compared. Methods and Results In 532 asymptomatic hypertensive patients, circumferential function was assessed with the use of midwall fractional shortening (mFS) and stress-corrected mFS (SCmFS), whereas longitudinal function was assessed with the use of left atrioventricular plane displacement (AVPD) and systolic mitral annulus velocity (s′). Early diastolic annular velocity (e′) and the E/e′ ratio were measured. Global longitudinal and circumferential strain were determined in a subset of 210 patients. e′ was linearly related to all systolic indexes (AVPD: R = 0.40; s′: R = 0.39; mFS: R = 0.16; SCmFS: R = 0.17; all P <.0001), but the correlations were stronger with longitudinal indexes than with circumferential ones (P <.0001). E/e′ was nonlinearly related to AVPD (R = -0.49; P <.0001) and s′ (R = -0.34; P <.0001) and showed no relationship with mFS and SCmFS. Longitudinal indexes were superior to circumferential ones in predicting e′ <8 cm/s, E/e′ <8, and E/e′ ≥13. The effect of LV geometry on LV diastolic function was evident among patients with preserved systolic longitudinal function, but was blunted among patients with impaired longitudinal function. In multivariable analyses, only longitudinal indexes remained associated with e′ and E/e′. Analyses using strains provided similar results. Conclusions In asymptomatic hypertensive subjects, LV diastolic performance is independently associated with longitudinal systolic dysfunction, but not with circumferential systolic dysfunction. Subtle longitudinal systolic impairment plays a role in mediating the effect of LV geometry on diastolic performance. These findings may support the need of critically revising the concept of isolated diastolic dysfunction in these patients. © 2014 Elsevier Inc. All rights reserved.
Floridia M.,Istituto Superiore di Sanita |
Mastroiacovo P.,Alessandra Lisi International Center on Birth Defects and Prematurity |
Tamburrini E.,Catholic University |
Tibaldi C.,University of Turin |
And 12 more authors.
BJOG: An International Journal of Obstetrics and Gynaecology | Year: 2013
Objective: We used data from a national study of pregnant women with HIV to evaluate the prevalence of congenital abnormalities in newborns from women with HIV infection. Design: Observational study. Setting: University and hospital clinics. Population: Pregnant women with HIV exposed to antiretroviral treatment at any time during pregnancy. Methods: The total prevalence of birth defects was assessed on live births, stillbirths, and elective terminations for fetal anomaly. The associations between potentially predictive variables and the occurrence of birth defects were expressed as odds ratios (ORs) with 95% confidence intervals (95% CIs) for exposed versus unexposed cases, calculated in univariate and multivariate logistic regression analyses. Main outcome measures: Birth defects, defined according to the Antiretroviral Pregnancy Registry criteria. Results: A total of 1257 pregnancies with exposure at any time to antiretroviral therapy were evaluated. Forty-two cases with major defects were observed. The total prevalence was 3.2% (95% CI 1.9-4.5) for exposure to any antiretroviral drug during the first trimester (23 cases with defects) and 3.4% (95% CI 1.9-4.9) for no antiretroviral exposure during the first trimester (19 cases). No associations were found between major birth defects and first-trimester exposure to any antiretroviral treatment (OR 0.94, 95% CI 0.51-1.75), main drug classes (nucleoside reverse transcriptase inhibitors, OR 0.95, 95% CI 0.51-1.76; non-nucleoside reverse transcriptase inhibitors, OR 1.20, 95% CI 0.56-2.55; protease inhibitors, OR 0.92, 95% CI 0.43-1.95), and individual drugs, including efavirenz (prevalence for efavirenz, 2.5%). Conclusions: This study adds further support to the assumption that first-trimester exposure to antiretroviral treatment does not increase the risk of congenital abnormalities. © 2013 RCOG.
Sironi M.,Scientific Institute Irccs Emedea |
Biasin M.,University of Milan |
Forni D.,Scientific Institute Irccs Emedea |
Cagliani R.,Scientific Institute Irccs Emedea |
And 9 more authors.
AIDS | Year: 2012
Three prime repair exonuclease 1 (TREX1) degrades excess HIV-1 DNA, thereby preventing recognition by innate immunity receptors and type I interferon responses. Analyses performed in two HIV-exposed seronegative (HESN) cohorts did not show any differences in TREX1 sequence, single nucleotide polymorphisms frequency, or expression in HESN compared to controls, suggesting that, despite its central role in the HIV-1 infection process, genetic diversity at TREX1 is not a major determinant of susceptibility to infection in humans. © 2012 Wolters Kluwer Health | Lippincott Williams & Wilkins.