Immune thrombocytopenia in infants: a retrospective study with comparison to toddlers.

Introduction: Immune thrombocytopenia (ITP) is the most common cause of acquired bleeding in childhood, but little is known about the clinical course and outcomes in infants with ITP.

Methods: This is a retrospective study of all infants (1-12 months of age) and toddlers (13-47 months of age) diagnosed with ITP from a single centre during a 13-year period. The following data were compared between the two patients groups: demographics, severity of bleeding, platelet counts, duration of illness, development of chronic ITP, treatment and association with recent vaccination.

Targeted Gene Sanger Sequencing Should Remain the First-Tier Genetic Test for Children Suspected to Have the Five Common X-Linked Inborn Errors of Immunity.

To address inborn errors of immunity (IEI) which were underdiagnosed in resource-limited regions, our centre developed and offered free genetic testing for the most common IEI by Sanger sequencing (SS) since 2001. With the establishment of The Asian Primary Immunodeficiency (APID) Network in 2009, the awareness and definitive diagnosis of IEI were further improved with collaboration among centres caring for IEI patients from East and Southeast Asia. We also started to use whole exome sequencing (WES) for undiagnosed cases and further extended our collaboration with centres from South Asia and Africa.

Treatment and outcomes of high-risk neuroblastoma in Southeast Asia: a single-institution experience and review of the literature.

Introduction: In Europe and North America, the majority of children with high-risk neuroblastoma survive the disease. Elsewhere, the treatment outcomes are poor.

Methods: A retrospective review of children treated for high-risk neuroblastoma in a single institution in Singapore from 2007 to 2019 was carried out.

A multicenter report on the safety and efficacy of plerixafor based stem cell mobilization in children with malignant disorders.

Background: Pleraxifor for peripheral blood stem cell (PBSC) mobilization in children with malignancies is often given following failure of standard mobilization (SM) rather than as a primary mobilizing agent.

Study Design And Methods: In this retrospective multicenter study, we report the safety of plerixafor-based PBSC mobilization in children with malignancies and compare outcomes between patients who received plerixafor upfront with SM (Group A) with those who received plerixafor following failure of SM (Group B). In the latter pleraxifor was given either following a low peripheral blood (PB) CD34 (<20 cells/cu.

Burkitt Lymphoma Presenting as Acute Pancreatitis: Report of 3 Cases and Review of the Literature.

Acute pancreatitis is a rare presentation in Burkitt lymphoma (BL) and may lead to delayed medical or unnecessary surgical treatment. Three cases of BL presenting as acute pancreatitis in the authors' institutions were described. Similar cases reported in the medical literature were collected and described along with the authors' cases.

Macropolycyte in Pediatrics.

Macropolycytes are tetraploid neutrophils produced during accelerated myelopoiesis. They have been reported in adults with pernicious anemia, sepsis, and after cytotoxic chemotherapy. Two pediatric cases are reported, one after granulocyte colony-stimulating factor treatment and the other following Kawasaki disease, respectively.

Treatment of hepatic veno-occlusive disease in children with N-acetylcysteine.

In our institution, hepatic veno-occlusive disease/sinusoidal obstruction syndrome (VOD/SOS) has been treated with N-acetylcysteine (NAC) since 2008-a loading dose of 150 mg/kg, followed by 12 doses of 70 mg/kg 6 hourly. Nine children were diagnosed with hepatic VOD/SOS. Hepatic VOD/SOS occurred in seven children after stem cell transplantation and two were receiving chemotherapy for Wilms tumor.

Idiopathic Purpura With Gray Platelets: an Acquired Form of Gray Platelet Syndrome.

An acquired, transient bleeding disorder that predominantly affects children in Southeast Asia has been reported for the last 4 decades. The condition has been named idiopathic purpura with gray platelets (IPGP) or acquired platelet dysfunction with eosinophilia. In a retrospective review from a private pediatric clinic over an 8-year period, 10 consecutive children were diagnosed as IPGP with a mean age of 8.

Isolated thrombocytopenia in childhood: what if it is not immune thrombocytopenia?

Introduction: Childhood immune thrombocytopenia (ITP) remains a diagnosis of exclusion when isolated thrombocytopenia is not part of another disease process. In practice, the diagnosis of ITP can only be confirmed when thrombocytopenia resolves or is excluded after the recognition of a primary cause.

Methods: The records of 87 consecutive children with isolated thrombocytopenia seen over a nine-year period in a private paediatric haematology practice were reviewed retrospectively.