Lorraine Ng

The Baseline Diameter of the Inferior Vena Cava Measured by Sonography Increases With Age in Normovolemic Children

To evaluate normative sonographic measurements of the inferior vena cava (IVC) diameter in healthy pediatric patients.

Precision Medicine With Point-of-care Ultrasound: The Future of Personalized Pediatric Emergency Care

Abstract The Precision Medicine Initiative spearheaded by the National Institute of Health has pioneered a new model of health care focused on health care delivery that is tailored to an individual. Medical advances have already provided clinicians with the tools to better predict treatment outcomes based on the individual needs of each patients disease process. Three-dimensional printing allows medical devices and implants to be custom made-to-order. Technological advances in preoperative imaging have augmented the ability for surgeons to plan a specific surgical approach for each patient. In a similar vein, point-of-care ultrasound offers the emergency care provider an opportunity to move beyond protocols and provide precise medical care tailored to the acute needs of each ill or injured emergent patient. In this article, we explore several cutting-edge applications of point-of-care ultrasound that can help providers develop a personalized approach to resuscitation and emergent procedures in pediatrics.

Sonographic baseline physeal plate width measurements in healthy, uninjured children.

Background There are limited data on the sonographic evaluation of normative physeal plate measurements in healthy, uninjured children. Objectives This study aimed to determine baseline measurements in physeal plate widths and to assess variation in the measured widths among contralateral sides, age group, and sex in healthy, uninjured children. Methods This was a prospective observational study of a convenience sample of healthy patients between 0 and 12 years of age presenting to the pediatric emergency department. A point-of-care ultrasound examination of the distal radius, ulna, fibula, and tibia was performed bilaterally (8 total). Measurements were taken at the physeal plates in the longitudinal plane at the widest distance. The degree of variance of physeal plate widths within an individual and the mean values of physeal plate widths for each bone were calculated. Results A total of 95 patients were enrolled in this study. The mean age of the enrolled patients was 6 years 3 months; 40% were female. Mean (SD) physeal plate widths for the averaged measurement of each bone were as follows: radius, 0.32cm (0.09); ulna, 0.31cm (0.09); fibula, 0.31cm (0.08); and tibia, 0.39cm (0.09). Mean (SD) values for the absolute difference in physeal plate widths were as follows: radius, 0.08cm (0.06); ulna, 0.07cm (0.10); fibula, 0.06cm (0.06); and tibia, 0.06cm (0.05). When measurements were stratified by age and sex, the mean physeal plate widths and mean difference in physeal plate widths did not demonstrate any significant differences. Conclusions This pilot study demonstrated that there was no statistically significant difference in physeal plate widths between contralateral extremities and the degree of variation between contralateral extremities was minimal. Results of this study elucidate normative physeal plate variance in healthy children and demonstrate that mean physeal plate measurements and absolute differences are narrow. This study suggests that sonographic detection of significant disparities in physeal plate widths of injured children may have the potential for earlier detection of Salter-Harris injuries with subsequent appropriate referral and management.

Focused cardiac ultrasound diagnosis of right-sided endocarditis.

Endocarditis is a serious infection of the innermost muscle layer of the heart and can lead to significant mortality and morbidity. Echocardiography is instrumental to the timely diagnosis of this disease entity. We discuss the case of a patient presenting to the emergency department (ED) with fever of unclear etiology. The diagnosis of right-sided endocarditis was made using focused cardiac ultrasound. A 46-year-old man with a history of intravenous drug abuse presented to the ED complaining of fevers and headaches. Focused cardiac ultrasound demonstrated a tricuspid vegetation. The patient was promptly treated for right-sided endocarditis. This case illustrates the use of focused cardiac ultrasound to facilitate the early diagnosis and management of endocarditis in the ED.

An Easy-to-Make, Low-Cost Ultrasound Phantom for Simulation Training in Abscess Identification and Aspiration

We have created a low‐cost and easy to make phantom for abscess identification using point‐of‐care ultrasound. The phantom also allows needle tracking and abscess aspiration using ultrasound guidance.

Erratum to: Pediatric emergency medicine point-of-care ultrasound: summary of the evidence

The utility of point‐of‐care ultrasound is well supported by the medical literature. Consequently, pediatric emergency medicine providers have embraced this technology in everyday practice. Recently, the American Academy of Pedi‐ atrics published a policy statement endorsing the use of point‐of‐care ultrasound by pediatric emergency medicine providers. To date, there is no standard guideline for the practice of point‐of‐care ultrasound for this specialty. This document serves as an initial step in the detailed “how to” and description of individual point‐of‐care ultrasound examinations. Pediatric emergency medicine providers should refer to this paper as reference for published research, objectives for learners, and standardized reporting guidelines.