Vaso-occlusive Crisis

Sickle cell disease (SCD) is a severe hemoglobinopathy, characterized by recurrent vaso-occlusive crises (VOC) causing intense pain and frequent hospitalizations in adult patients. Current French and British guidelines recommend rapid administration of strong opioids, primarily through patient-controlled analgesia (PCA), as the reference treatment for hospitalized patients experiencing VOC. However, opioid use is associated with dose-dependent adverse effects, including nausea, constipation, pruritus, sedation, and hypoventilation, the latter representing a risk factor for acute chest syndrome. The hypothesis underlying this study is that multimodal analgesia-combining morphine PCA with co-analgesics such as paracetamol-can significantly reduce morphine consumption during hospitalization compared to opioid-only analgesia, while maintaining effective pain control. Although several co-analgesic agents (paracetamol, NSAIDs, nefopam, tramadol, ketamine) are recommended by expert guidelines, including those from the American Society of Hematology (2020) and French recommendations (2025), the level of evidence supporting their use in adult sickle cell patients remains low or non-existent for most agents, with no randomized controlled trials available for nefopam, tramadol, or ketamine. Using an adaptive platform design, this trial aims to compare multiple analgesic strategies against standard opioid-based care, generating higher-quality evidence to optimize pain management protocols for adult patients experiencing VOC

Acute vaso-occlusive crisis (VOC) is the most common complication in patients with sickle cell disease (SCD) and pain related to VOC is often inadequately treated. This is a phase II randomized controlled clinical trial evaluating the efficacy of virtual reality technology when added to standard pain management for patients with sickle cell disease who are experiencing acute pain crisis in the ambulatory care setting. Patients will be randomized to receive either standard management only or standard management in addition to virtual reality therapy. The remainder of care for the painful event will continue per institutional standards according to clinical indication, including reassessment and documentation of pain and additional doses of pain medicines by intravenous (IV) or oral route. Pain scores and opioid requirement will be measured and compared across treatment arms, along with the outcomes of discharge from clinic versus admission to the inpatient unit. PRIMARY OBJECTIVE: To assess the efficacy of virtual reality (VR) technology in reducing pain at 30 minutes after intervention during an acute vaso-occlusive crisis in patients with sickle cell disease. Primary endpoint will be change in pain scores in Standard versus VR arms, between the first pain assessment at the time of presentation and the subsequent pain assessments up to 30 minutes after intervention. Secondary Objectives: * To compare total opioid consumption from the time of presentation to the time of discharge from acute care setting in Standard versus VR arms. * To assess the efficacy of virtual reality (VR) technology in reducing pain at 60 minutes after the first IV medication administered or 60 minutes after completion VR during an acute vaso-occlusive crisis in patients with sickle cell disease.

This study aims to assess the incidence and clinical outcomes of vaso-occlusive crises in pediatric patients with sickle cell disease. Data will be collected and analyzed to identify risk factors and related complications.

Sickle cell disease (SCD) is characterized by an abnormal hemoglobin, the main protein in the red blood cell. From the first months of life, acute obstruction of the vessels of the microcirculation manifests as intense and unpredictable recurrent episodes of severe pain. In the Emergency Department (ED), patients presenting with a vaso-occlusive crisis (VOC) required a rapid evaluation and administration of pain relief therapies and hydration. this strategy is based on an intranasal (IN) administration of Sufentanil at the initial management of children with VOC, followed by morphine intravenous (IV) relay as soon as possible, compared to the usual care procedure with IV morphine as soon as possible. The hypothesis is that the use of this IN opioid at the beginning of the management of children with VOC can reduce the time before being pain relieved. Indeed, the IN administration make it easier and faster to administer.

Sickle cell disease (SCD) is an inherited haemoglobinopathy disorder caused by mutations in HBB gene with amino-acid substitution on β globin chain. The consequence is synthesis of altered haemoglobin S (HbS) which polymerises in red blood cell (RBC) at deoxygenated state. SCD is associated with chronic haemolytic anaemia, vaso-occlusive crisis (VOC) leading to frequent hospitalisation. The aim of the study was to to investigate whether a combination of routine laboratory biomarkers of haemolysis could be used to predict VOC development in confirmed SCD patients.