RESUMO
OBJECTIVES: To characterize pulmonary artery Doppler flow profile (PAFP) patterns among infants receiving care in neonatal intensive care units and to examine the association of PAFP patterns with pulmonary and right ventricular (RV) hemodynamics. STUDY DESIGN: This is a retrospective study at 2 tertiary intensive care units over 4 years that included neonates who demonstrated a complete tricuspid regurgitation envelope on targeted neonatal echocardiography. Separate personnel reviewed TNEs to characterize PAFP patterns, divide cohort into PAFP groups, and measure quantitative indices of RV hemodynamics (RV systolic pressure, pulmonary artery acceleration time and its ratio with RV ejection time, tricuspid annular plane systolic excursion, and RV output), for intergroup comparisons. RESULTS: We evaluated TNEs from 186 neonates with median gestational age of 28.5 weeks (IQR, 25.9-35.9 weeks). Four distinct PAFP patterns were identified (A) near-isosceles triangle (22%), (B) right-angled triangle (29%), (C) notching (40%), and (D) low peak velocity (<0.4 m/s; 9%). Groups A-C demonstrated a stepwise worsening in all indices of PH, whereas pattern D was associated with lower tricuspid annular plane systolic excursion and RV output. Using common definitions of pulmonary hypertension (PH), pattern A performed best to rule out PH (sensitivity range, 81%-90%) and pattern C for diagnosing PH (specificity range, 63%-78%). CONCLUSIONS: Inspection of PAFP is a simple bedside echocardiography measure that provides clinically meaningful information on underlying RV hemodynamics and may aid in screening and monitoring of patients for PH in intensive care units.
Assuntos
Hipertensão Pulmonar , Artéria Pulmonar , Lactente , Recém-Nascido , Humanos , Artéria Pulmonar/diagnóstico por imagem , Estudos Retrospectivos , Hipertensão Pulmonar/diagnóstico por imagem , Hemodinâmica , Unidades de Terapia Intensiva NeonatalRESUMO
OBJECTIVE: To investigate the association of early (±4 hours after onset of bloodstream infection) clinical and laboratory variables with episode-related mortality (<7 days). STUDY DESIGN: This 2-site retrospective study included 142 neonates born at <35 weeks of gestational age with positive blood/cerebrospinal fluid (CSF) culture at >72 hours of age from organisms other than coagulase-negative Staphylococcus. Early variables were compared between those with bloodstream infection-related mortality and survivors. Multivariable analysis was conducted for the primary outcome, and the area under the curve (AUC) was estimated for relevant variables. RESULTS: The neonates who died were of lower gestational age at disease onset. After adjusting for relevant variables, lowest mean blood pressure (MBP) (aOR, 0.10; 95% CI, 1.02-1.19) and highest base deficit (aOR, 1.18; 95% CI, 1.06-1.32) were independently associated with mortality. The AUC was 0.87 (95% CI, 0.78-0.96) for base deficit, increasing to 0.91 (95% CI, 0.83-0.99) with the addition of MBP. CONCLUSION: Low MBP and high base deficit within ±4 hours of bloodstream infection onset identify preterm neonates at risk of mortality.
Assuntos
Doenças do Prematuro/microbiologia , Doenças do Prematuro/mortalidade , Sepse Neonatal/diagnóstico , Sepse Neonatal/mortalidade , Desequilíbrio Ácido-Base/complicações , Pressão Sanguínea , Feminino , Idade Gestacional , Humanos , Lactente , Recém-Nascido , Recém-Nascido Prematuro , Doenças do Prematuro/diagnóstico , Masculino , Sepse Neonatal/microbiologia , Mortalidade Perinatal , Estudos Retrospectivos , Fatores de Risco , Sensibilidade e Especificidade , Taxa de Sobrevida , Fatores de TempoRESUMO
OBJECTIVE: To synthesize and describe parental expectations on how healthcare professionals should interact with them during a peripartum, antenatal consultation for extremely preterm infants. STUDY DESIGN: For this systematic literature review with textual narrative synthesis, we included studies that explored parental perspectives regarding the antenatal consultation for an extremely preterm infant. Electronic searches of Medline, CINAHL, PsycInfo, and Embase were conducted, along with a search of the grey literature. Quality appraisal was conducted using the guide by Walsh and Downe. Two independent reviewers reviewed 783 titles, of which 130 abstracts then 40 full-text articles were reviewed. Final data abstraction includes 19 studies. We predetermined 6 topics of interest (setting, timing, preferred healthcare professional, information, resources, and parents-physician interaction) to facilitate thematic analysis. RESULTS: In consideration of the variability of parents' specific desires, six predetermined topics and additional overarching themes such as perception of support, degree of understanding, hope, spirituality, and decision-making influences emerged. Studies suggest the quality of the antenatal consultation is not purely about information content, but also the manner in which it is provided. Limitations include thematic analysis that can potentially lead to the exclusion of important nuances. Relevant studies may have been missed if published outside the healthcare literature. CONCLUSIONS: The findings may inform clinical practice guidelines. This paper includes suggested strategies related to parents' perspectives that may facilitate communication during antenatal consultation for an extremely preterm infant. These strategies may also support parental engagement and satisfaction.