Paravalvular leak (PVL) is an uncommon yet serious complication associated with surgical prosthetic valve implantation. Paravalvular leak can have significant clinical consequence such as congestive heart failure, haemolytic anaemia, and infective endocarditis. Recently, transcatheter therapy has been applied to the treatment of this disorder with reasonable procedural and clinical success. This review discusses the current state of PVLs, the utilization of multi-modality imaging in their diagnosis and treatment, and the available therapeutic options. Further aim of this review is to examine transcatheter therapy of PVLs including the principles, outcomes, and procedural-related complications.

HIV infection is considered a risk factor for the development of pulmonary arterial hypertension (PAH) and the estimated prevalence of PAH in developed countries is 0.5%. The aim of this study was to determine the prevalence of PAH in a cohort of HIV-infected patients and the related factors. We undertook an observational study of a consecutive cohort of asymptomatic HIV-infected patients. Data were recorded about factors of cardiovascular interest and factors related to HIV infection. All the patients underwent a transthoracic echocardiogram (Vivid S6, GE Healthcare). PAH was considered to be a pulmonary arterial systolic pressure (PASP) >40 mm Hg. The study included 194 patients (85.2% men) with a mean age of 47.0 years, 94% of whom were on antiretroviral therapy (ART). The mean CD4 lymphocyte count was 495/mm(3). The mean duration of HIV infection was 131.5 months, and 28.4% had experienced an AIDS event. PAH was present in five patients (2.6%) and 14 were in the gray zone (PASP of 36-40 mm Hg). These five patients were men, the route of transmission was homosexual, and they were all on ART. They were also older than the patients without PAH (57.7 vs. 46.4 years, p=0.02) and had been on ART for longer (180.0 vs. 92.5 months; p=0.01). No association was found with any of the other parameters. The prevalence of PAH in this cohort of patients was greater than in other published series. The only associations found were with older age and longer ART time.

HIV patients have been reported to have a greater prevalence of echocardiographic abnormalities. We aimed to determine the prevalence of these abnormalities and their associated factors. This was an observational study of a cohort of asymptomatic HIV patients. Data were recorded on factors of cardiovascular interest and those related to HIV infection. All the subjects underwent a transthoracic echocardiogram. The study included 196 patients, 85.2% men, mean age 46.4 years, with a mean duration of HIV infection of 123.8 months and 27.6% with AIDS. Of the patients, 94.4% were on antiretroviral therapy and 92.5% of these had an undetectable viral load. The mean CD4 cell count was 544/mm(3). The following echocardiographic abnormalities were found: left ventricular (LV) hypertrophy 28.6%, LV diastolic dysfunction 19.9%, left atrial (LA) dilatation 7.7%, right ventricular (RV) systolic dysfunction 6.1%, pulmonary hypertension 2.6%, RV dilatation 2%, and (LV) systolic dysfunction 1%. LV hypertrophy was associated with diabetes mellitus (OR 5.3, 95% CI 1.8-15.3; p=0.001), LV diastolic dysfunction with age (OR for each extra 5 years 4.4, 95% CI 4.2-4.6; p=0.0001), obesity (OR 4.07, 95% CI 1.6-10.0; p=0.02), alcohol consumption (OR 2.5, 95% CI 1.07-6.2; p=0.03) and lower CD4 cell count (OR for each 10 CD4 cells less 10.02, 95% CI 10.00-10.04; p=0.008), and RV systolic dysfunction with hypertension (OR 5.4, 95% CI 1.6-18.2; p=0.005). Echocardiographic abnormalities in HIV patients were common, especially LV hypertrophy and diastolic dysfunction. Prospective comparative studies involving the general population are needed to determine the prevalence of HIV infection and its treatment in these abnormalities.

AEF is a catastrophic complication of endovascular stent-graft placement. Treatment options are very limited, as these patients are usually not candidates for open surgery. Conservative treatment is often associated with fatal results.