Brain Metastasis in Pediatric Patients with Osteosarcoma.

Background: Brain metastases in pediatric osteosarcoma are infrequent but associated with a dire prognosis.

Methods: This retrospective study examined six pediatric patients at Johns Hopkins Hospital who developed brain metastases from osteosarcoma between April 2015 and November 2023.

Results: Median survival post-brain metastasis was 2.

Surgical-site infection in multifetal cesarean delivery.

Purpose: The relationship between multifetal cesarean delivery and surgical-site infection (SSI) is unclear. If SSI is more common in multifetal cesareans, adjustment of practices such as antibiotic dosing could be warranted. The purpose of this study was to determine whether patients undergoing multifetal cesarean delivery are more likely to experience SSI than those undergoing singleton cesarean delivery.

Intrapartum trends of NT-proBNP and hs-cTnT in patients with severe features of preeclampsia.

Background: Preeclampsia with severe features (SPE) is a multisystem syndrome associated with long-term cardiovascular morbidity. Serum concentrations of N-terminal B-type natriuretic peptide (NT-proBNP) and high sensitivity cardiac troponin-T (hs-cTnT) are sensitive markers of cardiac stretch and ischemia, respectively.

Objective: Our aim was to examine NT-proBNP and hs-cTnT in patients with SPE during labor.

Effect of Poloxamer 188 vs Placebo on Painful Vaso-Occlusive Episodes in Children and Adults With Sickle Cell Disease: A Randomized Clinical Trial.

Importance: Although effective agents are available to prevent painful vaso-occlusive episodes of sickle cell disease (SCD), there are no disease-modifying therapies for ongoing painful vaso-occlusive episodes; treatment remains supportive. A previous phase 3 trial of poloxamer 188 reported shortened duration of painful vaso-occlusive episodes in SCD, particularly in children and participants treated with hydroxyurea.

Objective: To reassess the efficacy of poloxamer 188 for vaso-occlusive episodes.

A new Aγ-globin chain variant: Hb F-Sykesville MD [Aγ113(G15)Val → Ile; HBG1: c.340G>A] detected in a Caucasian baby.

The total number of hemoglobin (Hb) variants currently included in the globin gene server database is 1626 (November 12 2014), of which 131 are fetal Hb variants. These variants are observed as two different subunits of fetal Hb, (G)γ- and (A)γ-globin chains. Of the 131 documented fetal Hb variants, 73 are (G)γ- and 58 are (A)γ-globin chain variants.