Background: Unexplained pulmonary hemorrhage and hemosiderosis are rarely seen in infancy. A geographic cluster of 10 infants with this illness was identified in a large pediatric referral hospital in Cleveland, Ohio, during the period of January 1993 through December 1994. One infant died of severe respiratory failure.
Methods: A case-control study was conducted. Three control infants were matched by age with each case infant. All study infants' guardians were interviewed. Questions were asked about child care practices and home conditions for the period before case infants' illnesses. All infants' records were reviewed, their homes were visited, and a structural and environmental survey was conducted.
Results: All 10 case infants were black, and 9 were male, whereas 50.0% of control infants were male, and 83.3% were black. The case infants' mean age was 10.2 weeks (range, 6 weeks to 6 months). Matched analysis demonstrated that case infants' homes were more likely to have had water damage preceding the pulmonary hemorrhage event (odds ratio, 16.25; 95% confidence interval, 2.55 to infinity). Case infants were also more likely to have had close relatives with pulmonary hemorrhage (odds ratio, 33.14; 95% confidence interval, 5.10 to infinity). In addition, 50.0% of case infants experienced recurrent pulmonary hemorrhaging after returning to their homes.
Conclusion: The results of this investigation of a cluster of infants with massive, acute pulmonary hemorrhage and hemosiderosis suggest that the affected infants may have been exposed to contaminants in their homes. Epidemiologic clues, such as water damage in the case infants' homes, suggest that environmental risk factors may contribute to pulmonary hemorrhage.
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http://dx.doi.org/10.1542/peds.99.1.e5 | DOI Listing |
J Particip Med
January 2025
Division of Allergy & Pulmonary Medicine, Washington University School of Medicine, St Louis, MO, United States.
Background: Adolescents and young adults (AYA) with cystic fibrosis (CF) are at risk for deviating from their daily treatment regimen due to significant time burden, complicated daily therapies, and life stressors. Developing patient-centric, effective, engaging, and practical behavioral interventions is vital to help sustain therapeutically meaningful self-management.
Objective: This study aimed to devise and refine a patient-centered telecoaching intervention to foster self-management in AYA with CF using a combination of intervention development approaches, including an evidence- and theory-based approach (ie, applying existing theories and research evidence for behavior change) and a target population-centered approach (ie, intervention refinement based on the perspectives and actions of those individuals who will use it).
Am J Physiol Heart Circ Physiol
January 2025
Center for Cardiometabolic Science, Christina Lee Brown Envirome Institute, Division of Environmental Medicine, Departments of Medicine, University of Louisville, Louisville, KY.
Maternal mortality rates in the US have been increasing steadily over the past decade, with rates significantly increased versus the rest of the developed world, despite the vast healthcare infrastructure. The purpose of this paper is to discuss key areas that need to be addressed within basic science, clinical, and community-based settings to help promote increased education, research, and awareness of specific pregnancy-associated changes that can occur during both healthy and complicated pregnancies. Through increased awareness, we can promote healthier pregnancies and not only help to reduce maternal mortality rates but also improve the long-term cardiovascular outcomes in mothers and their children.
View Article and Find Full Text PDFAnn Nucl Med
January 2025
Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland.
Dynamic positron emission tomography (PET) can be used to non-invasively estimate the blood flow of different organs via compartmental modeling. Out of different PET tracers, water labeled with the radioactive O isotope of oxygen (half-life of 2.04 min) is freely diffusable, and therefore, very well-suited for blood flow quantification.
View Article and Find Full Text PDFJ Vis Exp
January 2025
Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University;
The abnormal alternation of pulmonary angiogenesis is related to lung microvascular dysfunction and is deeply linked to vascular wall integrity, blood flow regulation, and gas exchange. In murine models, lung lobes exhibit significant differences in size, shape, location, and vascularization, yet existing methods lack consideration for these variations when quantifying microvascular density. This limitation hinders the comprehensive study of lung microvascular dysfunction and the potential remodeling of microvasculature circulation across different lobules.
View Article and Find Full Text PDFRev Esp Enferm Dig
January 2025
General and Digestive Surgery. Coloproctology Unit, Hospital Universitario Donostia.
A 56-year-old male smoker presented to the Emergency Department with a painful mass in the left ischiorectal fossa, which had been present for 2 months without any other symptoms. On examination, a hard, violet-colored mass was observed, with an ulcerated central area. Blood tests were normal, and the abdominal-pelvic CT scan showed multiple hypervascular intra-abdominal masses and soft tissue lesions.
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