Publications by authors named "Siboni S"

Introduction: High-resolution manometry (HRM) allows assessment of esophagogastric junction (EGJ) disruption. While type 3 EGJ predicts definitive gastroesophageal reflux disease (GERD), type 2 EGJ is less clearly implicated in GERD pathogenesis. This study aimed to characterize physiologic findings in type 2 EGJ to determine if the HRM-based Milan Score can define GERD within type 2 EGJ.

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Type 3 von Willebrand disease (VWD), the most severe form of VWD, is an inherited recessive bleeding disorder caused by the complete deficiency of von Willebrand factor (VWF). The reported prevalence is 1 per million but varies worldwide according to the frequency of consanguineous marriages. The clinical phenotype is characterized not only by mucocutaneous bleedings, but also by hemarthroses and muscle hematoma, as in patients with moderate hemophilia.

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Article Synopsis
  • Early diagnosis of joint damage in haemophilia is crucial to prevent further complications and enhance patient management, with the HJHS and HEAD-US scores being primary evaluation tools.
  • This study aims to compare the effectiveness of HJHS and HEAD-US scores by two independent experts to assess joint health in patients with haemophilia.
  • Results show a strong correlation between the two methods, particularly highlighting the ultrasound's ability to detect mild synovitis even when physical examination shows no swelling, underscoring the importance of using both assessments in clinical practice.
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Objective: A definitive diagnosis of gastroesophageal reflux disease (GERD) depends on endoscopic and/or pH-study criteria. However, high resolution manometry (HRM) can identify factors predicting GERD, such as ineffective esophageal motility (IEM), esophago-gastric junction contractile integral (EGJ-CI), evaluating esophagogastric junction (EGJ) type and straight leg raise (SLR) maneuver response. We aimed to build and externally validate a manometric score (Milan Score) to stratify the risk and severity of the disease in patients undergoing HRM for suspected GERD.

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Introduction: The increased life expectancy of patients with haemophilia A (HA) has led to a growing prevalence of cardiovascular risk factors and events. There is still scarce evidence on the safety and appropriate duration of dual antiplatelet therapy (DAPT) after acute coronary syndrome (ACS) in HA patients.

Aim: We describe our experience on the clinical management of Italian HA patients after ACS.

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Four variants have been continuously subjected to debate and received different von Willebrand disease (VWD) classifications: p.R1315L, p.R1315C, p.

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Swallowed or aspirated dentures may result in serious systemic complications and require multidisciplinary attention or intervention. With an increasing number of edentulous elderly patients, such situations are not uncommon occurrences in everyday dentistry. In fact, dentures are the most ingested foreign body in the elderly patient population, and this is a particular risk if the dentures are lacking in stability.

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Congenital fibrinogen deficiency (CFD) is a rare bleeding disorder caused by mutations in FGA, FGB, and FGG. We sought to comprehensively characterize patients with CFD using PRO-RBDD (Prospective Rare Bleeding Disorders Database). Clinical phenotypes, laboratory, and genetic features were investigated using retrospective data from the PRO-RBDD.

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The severity of the bleeding phenotype in patients with hemophilia A (HA) broadly correlates with the degree of coagulation factor VIII (FVIII) deficiency in plasma. However, the FVIII level necessary to achieve the goal of zero joint bleeds remains unclear. This study aimed to identify the minimum FVIII level necessary to prevent joint bleeds in patients with HA.

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Background:  Low von Willebrand factor (VWF) refers to subjects with plasma levels of 30 to 50 IU/dL. The mechanism of low VWF is poorly understood. We chose to determine the clinical presentation, laboratory phenotype, and underlying mechanisms of low VWF.

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Article Synopsis
  • The study assessed the effectiveness and safety of the mRNA-1273 (Moderna) COVID-19 vaccine in HIV-positive hemophilic patients during Italy's third COVID-19 wave.
  • Twenty-three adult patients were vaccinated, with blood samples taken before and two weeks after to measure antibodies and other coagulation biomarkers.
  • Results showed that all patients developed antibodies against the virus after vaccination, and there were no significant changes in coagulation or endothelial biomarkers, indicating the vaccine is safe for this population.
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Ruling out advanced fibrosis/cirrhosis is mandatory for persons with hemophilia (PWH) who are candidates for gene therapy. However, clinical evaluation and noninvasive tests (NITs) may be inaccurate after hepatitis C virus (HCV) clearance. We conducted a prospective hepatological screening to detect advanced fibrosis/cirrhosis in PWH after HCV clearance.

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Background: Enhanced von Willebrand factor (VWF) clearance from plasma is associated with von Willebrand disease (VWD). However, the genetic background of this disease mechanism is not well defined.

Objective: To determine VWF variants that are associated with reduced VWF survival.

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Over the last decade, the world of hemophilia has experienced an unprecedented therapeutic advance, thanks to the progress in bioengineering technologies, leading to the introduction of drugs with novel mechanisms of action based on restoring thrombin generation or coagulation factor VIII mimicking. Apart from the bispecific monoclonal antibody emicizumab, already approved for patients with severe hemophilia A with and without inhibitors, novel non-replacement drugs designed to reduce the treatment burden of patients with hemophilia A or B with or without inhibitors are undergoing evaluation in clinical trials. Thanks to their innovative mechanism of action and subcutaneous administration, these drugs promise to provide effective bleeding protection together with improved adherence and improve health-related quality of life for patients with hemophilia.

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Article Synopsis
  • The study investigates whether the straight leg raise (SLR) maneuver during high-resolution manometry (HRM) can accurately predict abnormal esophageal acid exposure time (AET) in patients with gastroesophageal reflux disease (GERD).
  • A total of 295 adult patients were analyzed, with 39% showing an AET greater than 6% and those with GERD demonstrating significantly higher intraesophageal pressures during SLR.
  • The research concludes that an increase of 11 mm Hg in intraesophageal pressure during SLR is an effective predictor of abnormal AET, enhancing the diagnostic capabilities of HRM for GERD.
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With the advent of high-resolution esophageal manometry, it is recognized that the antireflux barrier receives a contribution from both the lower esophageal sphincter (intrinsic sphincter) and the muscle of the crural diaphragm (extrinsic sphincter). Further, an increased intra-abdominal pressure is a major force responsible for an adaptive response of a competent sphincter or the disruption of the esophagogastric junction resulting in gastroesophageal reflux, especially in the presence of a hiatal hernia. This review describes how the pressure dynamics in the lower esophageal sphincter were discovered and measured over time and how this has influenced the development of antireflux surgery.

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von Willebrand disease (VWD) type 2 is caused by qualitative abnormalities of von Willebrand factor (VWF). This study aimed to determine the genotypic and phenotypic characterizations of a large VWD type 2 cohort from Milan. We included 321 patients (54% female) within 148 unrelated families from 1995 to 2021.

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