Publications by authors named "Laissy Jean-Pierre"

Article Synopsis
  • The study aimed to investigate the background and outcomes of splenic abscesses (SAs) in patients with infective endocarditis (IE), using data from 474 patients over 16 years.
  • Among the 36 patients diagnosed with SAs, the most common bacteria identified were Streptococcus spp and Enterococcus faecalis, with several patients having pre-existing conditions like diabetes and previous heart valve issues.
  • The majority of the patients were treated with antibiotics, some underwent splenectomy, and overall outcomes were positive, indicating the need for careful evaluation of patients with splenic emboli due to IE.
View Article and Find Full Text PDF

Aneurysms of the internal iliac artery in infective endocarditis are extremely rare, with few cases reported in the literature, and infective endocarditis are rare. We describe the case of a previously healthy 62-year-old male who presented a infective endocarditis. Multi-modality imaging revealed an aneurysm of the left internal iliac artery, which was clinically silent.

View Article and Find Full Text PDF
Article Synopsis
  • The study examines the occurrence and location of coronary artery disease (CAD) in adults with anomalous aortic origin of a coronary artery (AAOCA), which is not well documented.
  • Researchers analyzed data from 390 patients, focusing on the presence of CAD through imaging techniques like coronary angiography.
  • The findings revealed that CAD is more prevalent in the proximal segment of retroaortic AAOCA compared to other types of AAOCA, with no CAD found in the proximal segment of interarterial AAOCA, and the reasons for these differences remain unclear.
View Article and Find Full Text PDF

Background: Hepatic artery aneurysms (HAAs), albeit rare in infective endocarditis (IE), are associated with a life-threatening morbidity.

Methods: Retrospective review of 10 HAA-IE patients based on a total of 623 IE patients managed in 2 institutions (2008-2020) versus 35 literature cases.

Results: In our patient population, HAAs (10 males, mean age 48) were incidentally found during IE workup.

View Article and Find Full Text PDF

Background: Functional assessment of compact myocardium and hypertrabeculations in left ventricular non-compaction (LVNC) is underestimated with regards to the morphological spectrum of disease. We aimed to assess whether measuring concurrently left ventricular (LV) volume, mass and ejection fraction (LVEF) with and without trabeculation inclusion on cine magnetic resonance (cineMR) could help diagnose patients with LVNC by comparison to normal individuals with an excess of myocardial trabeculations.

Methods: This retrospective single center magnetic resonance imaging study (Bichat University Hospital) of 67 consecutive patients with echocardiographic hypertrabeculations seen at echocardiography between March 2011 and October 2018 included 30 patients with known LVNC and 16 control subjects with simple hypertrabeculations (non-compact/compact (NC/C) ratio between 1.

View Article and Find Full Text PDF

Background: To determine the prevalence, the clinical and radiological features, associated factors, treatment, and outcome of splenic artery aneurysms (SAAs) in infective endocarditis (IE).

Methods: We retrospectively reviewed 474 consecutive patients admitted to our institution with definite IE (2005-2020).

Results: Six patients had SAAs (1.

View Article and Find Full Text PDF

We report in-vivo imaging of a constellation of arterial variants found incidentally on CT-angiography in a 23-year-old woman presenting with an ischaemic stroke. This extremely rare combination includes a common origin of both common carotid arteries, an abnormal origin of the right vertebral artery (VA) from the right common carotid artery and of the left VA from the aortic arch, associated with an aberrant right subclavian artery. This constellation, previously described in a female cadaver, has not been reported in-vivo.

View Article and Find Full Text PDF

Infective endocarditis (IE) due to Streptococcus pyogenes (SP) (Group A Streptococcus) is uncommon and infectious renal artery aneurysm (IRAA) is an exceptional complication of IE, with few cases reported in the literature. We describe a case of SP native mitral valve IE in a 58-year-old man, presenting with large valve vegetations, abscess and severe regurgitation. Initial CT-angiography showed bilateral kidney and splenic infarcts.

View Article and Find Full Text PDF

Background: Brain abscesses (BA) are severe lesions in the course of infective endocarditis (IE). We compare the bacteriological, clinical data, background, associated lesions, and outcome of IE patients with and without BAs, and assess the MRI characteristics of BAs.

Methods: Retrospective study of 351 consecutive patients with definite IE (2005-2020) and at least one brain MRI.

View Article and Find Full Text PDF

Purpose: To evaluate the usefulness of T2* and FLAIR sequences in the detection of unruptured infectious intracranial aneurysms (UIIAs) in infective endocarditis (IE) including the relationships between the lesion patterns within subarachnoid spaces and the presence of UIIA.

Methods: Retrospective review of 15 consecutive patients with definite IE undergoing MR imaging (FLAIR, T2*, DWI, CE-MRA, 3D-T1, CE-3DT1 sequences), in whom DSA detected infectious intracranial aneurysms (IIA). Aneurysmal features (diameter, location, morphology on DSA) and signal patterns onT2*, FLAIR and conventional MR sequences at the site of the UIIA, follow-up MRI and IE background, were analyzed.

View Article and Find Full Text PDF

The study was designed to assess the accuracy of contrast-enhanced balanced steady-state free precession (cine-SSFP) CMR imaging sequences to exhibit myocardial hyperemia in acute myocarditis, which has for a long time been investigated in some centers using early gadolinium enhancement (EGE) sequence. Contrast-enhanced cine-SSFP (CESSFP) sequences were compared to precontrast cine-SSFP sequences to calculate the early cine-contrast enhancement in 36 consecutive patients with acute myocarditis and 36 controls matched for age and gender. Four-chamber views images were obtained in each subject before and after gadolinium injection.

View Article and Find Full Text PDF

Introduction: Prevotella species (i. e. P.

View Article and Find Full Text PDF

Objectives: To assess the diagnostic accuracy and lesion conspicuity of susceptibility-weighted angiography (SWAN) and T2* for the clot detection in acute cerebral venous thrombosis (CVT) by comparison with contrast-enhanced MR venography.

Methods: Venous thrombi detection and conspicuity were assessed by two readers for 18 venous segments on both T2*, SWAN source images, 2D SWAN reformats matching with T2*, and 3D SWAN images (SWAN-MinIP). Images obtained with the three reading techniques were systematically scored and compared to CE MRV findings, in a blinded fashion, per patient and per segment, and compared to each other.

View Article and Find Full Text PDF

Background: Aside from the culprit plaque, the presence of vulnerable plaques in patients with acute coronary syndrome (ACS) may be associated with future cardiac events. A link between calcification and plaque rupture has been previously described.

Aim: To assess whether analysis of the calcium component of coronary plaques using CT angiography, coronary computed tomographic angiography (CCTA) can help to detect additional vulnerable plaques in patients with non-ST elevation myocardial infarction (NSTEMI).

View Article and Find Full Text PDF

Objectives: To assess the diagnostic value of contrast-enhanced MRA (CE MRA) and CE 3D-T1 for identifying intracranial infectious aneurysms (IIAs) in infective endocarditis (IE) with digital substraction angiography (DSA) as reference.

Methods: Twenty-one IE patients (14 males; mean age: 53 years) with 30 IIAs, diameter ranging 1.5-15 mm (<3mm, n = 14, 46.

View Article and Find Full Text PDF