IntroductionAdequate ventilatory support of critically ill patients depends on prompt recognition of ventilator asynchrony, as asynchrony is associated with worse outcomes.We compared an automatic method of patient-ventilator asynchrony monitoring, based on airway flow frequency analysis, to the asynchrony index (AI) determined visually from airway tracings.MethodsThis was a prospective, sequential observational study of 110 mechanically ventilated adults. All eligible ventilated patients were enrolled. No clinical interventions were performed. Airway flow and pressure signals were sampled digitally for two hours. The frequency spectrum of the airway flow signal, processed to include only its expiratory phase, was calculated with the Cooley-Tukey Fast Fourier Transform method at 2.5 minute intervals. The amplitude ratio of the first harmonic peak (H1) to that of zero frequency (DC), or H1/DC, was taken as a measure of spectral organization. AI values were obtained at 30-minute intervals and compared to corresponding measures of H1/DC.ResultsThe frequency spectrum of synchronized patients was characterized by sharply defined peaks spaced at multiples of mean respiratory rate. The spectrum of asynchronous patients was less organized, showing lower and wider H1 peaks and disappearance of higher frequency harmonics. H1/DC was inversely related to AI (n = 110; r2 = 0.57; P < 0.0001). Asynchrony, defined by AI > 10%, was associated H1/DC < 43% with 83% sensitivity and specificity.ConclusionsSpectral analysis of airway flow provides an automatic, non-invasive assessment of ventilator asynchrony at fixed short intervals. This method can be adapted to ventilator systems as a clinical monitor of asynchrony.
In women with gestational hypertension, umbilical cord abnormalities are associated with fetal and neonatal consequences.
Objective: The pathogenesis of functional gastrointestinal disorders (FGIDs) remains unknown. Early life events including method of delivery and length of gestation may be risk factors for FGIDs. Data from studies on early life events and the development of FGIDs are scarce and contradictory. Objective: The aim of the study was to assess the association between mode of delivery, length of gestation, and FGIDs in children. We hypothesized that delivery via Cesarean section and prematurity would be associated with an increased prevalence of FGIDs. Methods: Questionnaires were mailed to families from 3 cities in Colombia. Parents provided information on mode of delivery, demographics, and medical history. School children completed the Spanish version of the Questionnaire of Pediatric Gastrointestinal Symptoms Rome IV. Categorical data were analyzed using Fisher exact tests. Calculation of odds ratio with 95% confidence interval was performed. Results: A total of 1497 children (535 preadolescents 10–12 years, 962 adolescents 13–18 years) participated. For participants born via Cesarean delivery, there was no significant increase in prevalence of any of the Rome IV FGIDs compared with vaginal delivery. There was a significant association between prematurity and FGIDs for those born between 28 and 32 weeks (confidence interval 0.99–3.37; P = 0.03). In this group, functional nausea was the only category of FGID to reach significance (0.16–112.23) (P = 0.02). However, statistical significance was lost when gestational ages were grouped together with multivariate analysis. Conclusions: Our findings provide evidence that Cesarean delivery and prematurity are not risk factors for the development of FGIDs. Future studies are indicated to further evaluate the relationship between early life events and FGIDs.
OBJECTIVE. The objective of this study was to enhance the ability to coordinate and deliver care in a holistic manner, through a family-centered care map, so that the developmental, physical, and psychosocial needs of the infant and family are met. METHODS.A Web-based map was based on 7 distinct clinical phases with 3 variations of an infant's course through a NICU. Sixty-three potentially better practices were identified and 7 potentially better practices were implemented through case studies.RESULTS. Measures of family satisfaction revealed improvements in delivery of family-centered care. Increases in discharge growth parameters for extremely low birth weight infants were demonstrated. Length of stay for very low birth weight infants decreased from 73 to 60 days in Vermont.CONCLUSIONS. The collaborative process enhances identification of potentially better practices and results in both qualitative and quantitative improvements in familycentered care.www.pediatrics.org/cgi
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.