Publications by authors named "Laurent Abramowitz"

Article Synopsis
  • This study examined the link between bowel transit issues during pregnancy and the development of anal pathologies, focusing on their incidence, diagnosis, and treatment within the first 6 weeks after childbirth.
  • Conducted in Bamako, Mali, the research enrolled 1,422 pregnant women, revealing that 38.4% experienced anal pathologies, with the most common being hemorrhoids (13%), anal fissures (10.5%), and anal incontinence (8.6%).
  • Key risk factors included being over 30 years old, having chronic constipation, delivering a larger baby, and prolonged fetal expulsion time, emphasizing the need for systematic screening and early treatment to prevent complications.
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  • - The study evaluated the effectiveness of a nationwide anal cancer screening program for high-risk HIV patients in France, focusing on adherence to the program and cancer diagnosis rates.
  • - Out of 700 patients, those with higher grades of anal intra-epithelial neoplasia (AIN) faced significantly increased risks of developing anal cancer, but strict adherence to screening (only 4.6% of participants) did not show a decrease in cancer risk.
  • - Despite not diagnosing any anal cancer among adherent patients, the screening led to more frequent diagnoses of anal warts, indicating a need for further investigation into the program's actual impact on cancer risk reduction.
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Objective: There are over 145 million births worldwide, with over 30 million cesarean deliveries yearly. There are limited data comparing the perinatal and maternal outcomes between planned cesarean delivery and planned vaginal delivery. This study aimed to evaluate perinatal and maternal morbidity and mortality by meta-analysis of randomized controlled trials that randomly assigned patients to either planned cesarean delivery or planned vaginal delivery.

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Postpartum anal incontinence is common. After a first delivery (D1) with perineal trauma, follow-up is advised to reduce the risk of anal incontinence. Endoanal sonography (EAS) may be considered to evaluate the sphincter and in case of sphincter lesions to discuss cesarean section for the second delivery (D2).

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Aim: Monkeypox virus (MPXV) has been spreading in many European countries, the USA and Canada since May 2022. General symptoms, skin and anoperineal lesions have been reported. Anal pain is often reported, but anal canal lesions have yet to be described in these patients.

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Squamous Cell Carcinoma of the Anal canal (SCCA) is a rare disease associated with a Human Papillomavirus (HPV) infection in most cases, predominantly the HPV16 genotype. About 15% of SCCA are diagnosed in metastatic stage and some will relapse after initial chemoradiotherapy (CRT). Treatment of patients by Docetaxel, Cisplatin and 5-fluorouracil (DCF) has been recently shown to improve their complete remission and progression-free survival.

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Background: The most effective treatment for anal fistula is fistulotomy, but it involves a risk of anal incontinence. To reduce this morbidity, sphincter-sparing treatments have been developed, but their success in real life is often less than 50%. The aim is to determine the clinical healing rate 6 months after radiofrequency treatment.

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Article Synopsis
  • Crohn's disease (CD) affects around 20% of patients with complications such as perianal fistulas, where achieving permanent closure remains difficult for doctors.
  • This study aimed to explore how serum adalimumab (ADA) levels relate to the clinical remission of fistulas associated with CD.
  • Results showed that higher serum ADA concentrations were linked to successful clinical remission, with 44% of patients achieving it, but no significant difference was found in ADA levels between those with and without healed fistulas.
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  • The study aimed to compare the effectiveness of surgical closure versus just seton removal for treating fistulizing perianal Crohn's disease in patients being treated with adalimumab.
  • A randomized controlled trial involved 64 patients, where one group received surgical closure and seton removal, while the other group only had the seton removed.
  • Results showed no significant difference in fistula closure rates between the two groups at 12 months, suggesting that seton removal alone may be just as effective as additional surgical intervention.
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Introduction: for localized T1N0 squamous cell carcinoma of the anus (SCCA) standard radiotherapy (RT) may result in overtreatment and alternative strategies are debated.

Methods: T1N0M0 SCCA treated between 2015 and 2020 by local excision (LE) or RT were analyzed from the French prospective FFCD ANABASE cohort. Treatment strategies, recurrence-free and colostomy-free survivals (RFS, CFS) and prognostic factors were reported.

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  • The study investigates the long-term efficacy of fibrin glue injections for treating perianal fistulas in Crohn's disease patients, following a previous short-term success shown in earlier trials.
  • It involved 119 patients who had undergone at least one fibrin glue injection between 2004 and 2015, with a primary focus on the rate of complete clinical remission after one year.
  • Results indicated a 45.4% remission rate at one year, with combination therapy showing significantly better outcomes, suggesting that fibrin glue may be a safe and effective adjunct treatment alongside conventional therapies.
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Introduction: Studies have shown that the PD-1/PD-L1 immunomodulatory pathway slows down anti-tumor immunity in a number of cancers. The description of the expression of these molecules has never been performed in anal low-grade/high grade squamous intra-epithelial lesions (LSIL/HSIL respectively).

Materials And Methods: Patients followed in the AIN3 cohort were routinely sampled.

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Purpose: Anal dysplasia is caused by chronic infection with the human papillomavirus and exposes to the risk of anal cancer. The aim of this study was to evaluate the distribution of dysplasia anal grade among patients operated on for multiple anal condylomas with no macroscopic differences.

Methods: This is a cross-sectional study of patients operated on for multiple anal condylomas including a mapping of dysplasia by performing systematically for each patient one biopsy on visible lesion from each of the 4 quadrants on anal margin and in anal canal.

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Following publication of the original article [1], the authors reported an error to one of the 'study groups' in the authorship section.

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Background: Abetalipoproteinemia, a recessive disease resulting from deleterious variants in MTTP (microsomal triglyceride transfer protein), is characterized by undetectable concentrations of apolipoprotein B, extremely low levels of low-density lipoprotein cholesterol in the plasma, and a total inability to export apolipoprotein B-containing lipoproteins from both the intestine and the liver.

Objective: To study lipid absorption after a fat load and liver function in 7 heterozygous relatives from 2 abetalipoproteinemic families, 1 previously unreported.

Results: Both patients are compound heterozygotes for p.

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Human papillomaviruses (HPV) infection is now known to be responsible for almost all cervical cancers, and for a substantial fraction of Head and Neck cancers (HNCs). However, comprehensive epidemiological and economic data is lacking in France, especially for rarer potentially HPV-related cancers, which include anal, vulvar and vaginal cancers. Using the national comprehensive database of French public and private hospital information (PMSI), we assessed prevalence and incidence of patients with in-hospital diagnosis for potentially HPV-related cancers in 2013, and estimated costs related to their management over a 3-year period after diagnosis in France.

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Background: The aim of this study was to investigate the presence of minority variants (MVs) in high-risk human papillomavirus (HPV) types (HPV-16, -52, and -58) from cervical and anal smears.

Methods: Whole HPV genome ultra-deep sequencing (UDS) was performed on cervical and anal smears collected during patient follow-up. Bioinformatics analyses were performed using Bowtie2 (Geneious).

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Aim: To establish consensual definitions of anoperineal lesions of Crohn's (APLOC) disease and assess interobserver agreement on their diagnosis between experts.

Methods: A database of digitally recorded pictures of APLOC was examined by a coordinating group who selected two series of 20 pictures illustrating the various aspects of APLOC. A reading group comprised: eight experts from the Société Nationale Française de Colo Proctologie group of study and research in proctology and one academic dermatologist.

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Background: Anal disorders are largely underestimated in general practice. Studies have shown patients conceal anal symptoms leading to late diagnosis and treatment. Management by general practitioners is poorly described.

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Introduction: This document is a summary of the French Intergroup guidelines regarding the management of anal carcinomas, published in November 2016.

Methods: It is a collaborative work produced under the auspices of the majority of the French medical societies involved in the management of anal cancer. It is based on the previous guidelines published in 2010.

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