scholarly journals Feasibility of pneumoperitoneum diagnosis using point-of-care ultrasound: a pilot study using a fresh cadaver model

2021 ◽  
Author(s):  
Meghan Kelly Herbst ◽  
Elizabeth M Carter ◽  
Shirley Wu ◽  
Christoph Frank Dietrich ◽  
Beatrice Hoffmann
Keyword(s):  
Pilot Study ◽  
Point Of Care ◽  
Point Of Care Ultrasound ◽  
Human Cadaver ◽  
Emergency Physicians ◽  
Chi Square ◽  
Lower Quadrant ◽  
Fresh Cadaver ◽  
Free Air ◽  
Chi Square Analysis

Aims: To assess the accuracy of point-of-care ultrasound (PoCUS) in the hands of two trained and blinded emergency physicians (EPs) in detecting very small amounts of free intraperitoneal air injected intra-abdominally, using a fresh human cadaver model.Material and methods: Fifteen cadavers were injected on 3 occasions with predefined quantities of free intraperitoneal air ranging from 0-10 mL. Seven cadavers were injected in the mid-epigastrium (ME), while 8 were injected in the left lower quadrant (LLQ). Each cadaver was scanned after each of the 3 injections by 2 trained and blinded EPs, resulting in 45 scans per sonographer. Scans were performed using previously validated and standardized techniques. All scans were recorded, time-stamped and labeled. For each scan the sonographers indicated “yes” or “no” to whether pneumoperitoneum was detected. A chi square analysis was performed to determine the sensitivity and specificity of PoCUS utilized by each sonographer of pneumoperitoneum based on the location and volume of air injected.Results: Free air (0.25-10 mL) injected into the ME was successfully diagnosed in 36/42 instances (86% sensitivity), but only detected in 10/36 instances when injected into the LLQ (28% sensitivity). Both EPs detected all air injections of ≥2 mL into the ME.Conclusion: Detection of free air originating from the midepigastric region may become a future PoCUS indication for adequately trained EPs.

Evaluation of a New Clinical Test of Fusion Status: A Pilot Study

2019 ◽  
pp. 113-118
Keyword(s):  
Pilot Study ◽  
Ohio State University ◽  
Background Suppression ◽  
Clinical Test ◽  
State University ◽  
Chi Square ◽  
Central Fusion ◽  
Eye Examination ◽  
The Ohio State University ◽  
Chi Square Analysis

Background Suppression is associated with binocular vision conditions such as amblyopia and strabismus. Commercial methods of testing fusion often only measure central fusion or suppression at near. The purpose of this pilot study was to assess a new iPad picture fusion test that assesses foveal and central fusion at near. Methods Participants aged 5 years and older presenting for eye examination at The Ohio State University College of Optometry were enrolled. Results from visual acuity, dry and wet refraction/retinoscopy, stereopsis and cover testing were recorded from the patient chart. The iPad picture fusion test, Worth four-dot, Worth type test with foveal letter targets, and Polarized four-dot were performed by one examiner in a randomized order at 40 cm. Testing was repeated with the anaglyphic filters reversed. Crosstabulation and McNemar chi-square analysis were used to compare the results between fusion testing devices. Results Of the fifty participants (mean age = 17.5), twelve reported suppression and one reported diplopia. Testability was excellent for all tests (98% to 100%). There were no significant differences between tests in reported results (P ≥ 0.22 for all comparisons). No difference in reported fusion or suppression status was observed with change in orientation of the anaglyphic filters. Six participants reported foveal suppression alone at near which was not identified with Worth four-dot at near. Conclusion The iPad picture fusion test provided excellent testability and agreement with commonly used tests of fusion and allowed testing of both central and foveal fusion at near. Nearly half (46%) of participants with suppression reported foveal suppression, supporting the importance of testing for foveal suppression.

scholarly journals The Accuracy of Point-of-Care Ultrasound in Detecting Small Bowel Obstruction in Emergency Department

2018 ◽  
Vol 2018 ◽  
pp. 1-5 ◽  
Author(s):  
A. Pourmand ◽  
U. Dimbil ◽  
A. Drake ◽  
H. Shokoohi
Keyword(s):  
Small Bowel ◽  
Small Bowel Obstruction ◽  
Bowel Obstruction ◽  
Imaging Modality ◽  
Point Of Care ◽  
High Sensitivity ◽  
Point Of Care Ultrasound ◽  
Emergency Physicians ◽  
Short Term ◽  
Intestinal Peristalsis

Radiological imaging plays an essential role in the evaluation of a patient with suspected small bowel obstruction (SBO). In a few studies, point-of-care ultrasound (POCUS) has been utilized as a primary imaging modality in patients with suspected SBO. POCUS has been shown to be an accurate tool in the diagnosis of SBO with multiple research studies noting a consistent high sensitivity with a range of 94–100% and specificity of 81–100%. Specific sonographic findings that increase the likelihood of SBO include dilatation of small bowel loops > 25 mm, altered intestinal peristalsis, increased thickness of the bowel wall, and intraperitoneal fluid accumulation. Studies also reported that emergency physicians could apply this technique with limited and short-term ultrasound training. In this article, we aim to review the sensitivity and specificity of ultrasound examinations performed by emergency physicians in patients with suspected SBO.

Accuracy of point-of-care ultrasound by pediatric emergency physicians for testicular torsion

2019 ◽  
Vol 15 (6) ◽  
pp. 608.e1-608.e6 ◽  
Author(s):  
N. Friedman ◽  
Z. Pancer ◽  
R. Savic ◽  
F. Tseng ◽  
M.S. Lee ◽  
...  
Keyword(s):  
Testicular Torsion ◽  
Point Of Care ◽  
Pediatric Emergency ◽  
Point Of Care Ultrasound ◽  
Emergency Physicians

Reliability of Neck Mass Point‐of‐Care Ultrasound by Pediatric Emergency Physicians

2019 ◽  
Vol 38 (11) ◽  
pp. 2893-2900 ◽  
Author(s):  
Nir Friedman ◽  
Felicia Tseng ◽  
Ranko Savic ◽  
Mamadou Diallo ◽  
Kate Fathi ◽  
...  
Keyword(s):  
Point Of Care ◽  
Pediatric Emergency ◽  
Neck Mass ◽  
Mass Point ◽  
Point Of Care Ultrasound ◽  
Emergency Physicians

scholarly journals P005: Regional anesthesia in Canadian emergency departments: Emergency physician practices and impressions

CJEM ◽  
2020 ◽  
Vol 22 (S1) ◽  
pp. S66-S66
Author(s):  
D. Wiercigroch ◽  
S. Friedman ◽  
D. Porplycia ◽  
M. Ben-Yakov
Keyword(s):  
Regional Anesthesia ◽  
Point Of Care ◽  
Point Of Care Ultrasound ◽  
Emergency Physicians ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Physician Practices ◽  
Canadian Association ◽  
Modifiable Factors ◽  
Barriers To Use

Introduction: The use of regional anesthesia (RA) by emergency physicians (EPs) is expanding in frequency and range of application as expertise in point-of-care ultrasound (POCUS) grows, but widespread use remains limited. We sought to characterize the use of RA by Canadian EPs, including practices, perspectives and barriers to use in the ED. Methods: A cross-sectional survey of Canadian EPs was administered to members of the Canadian Association of Emergency Physicians (CAEP), consisting of sixteen multiple choice and numerical responses. Responses were summarized descriptively as percentages and as the median and inter quartile range (IQR) for quantitative variables. Results: The survey was completed by 149/1144 staff EPs, with a response rate of 13%. EPs used RA a median of 2 (IQR 0-4) times in the past ten shifts. The most broadly used applications were soft tissue repair (84.5% of EPs, n = 126), fracture pain management (79.2%, n = 118) and orthopedic reduction (72.5%, n = 108). EPs agreed that RA is safe to use in the ED (98.7%) and were interested in using it more frequently (78.5%). Almost all (98.0%) respondents had POCUS available, however less than half (49.0%) felt comfortable using it for RA. EPs indicated that they required more training (76.5%), a departmental protocol (47.0%), and nursing assistance (30.2%) to increase their use. Conclusion: Canadian EPs engage in limited use of RA but express an interest in expanding their use. While equipment is available, additional training, protocols, and increased support from nursing staff are modifiable factors that could facilitate uptake of RA in the ED.

Geriatric‐Oriented Point‐of‐Care Ultrasound Curriculum During Geriatric Fellowship: A Pilot Study

2020 ◽  
Vol 68 (12) ◽  
Author(s):  
Daniel Kim ◽  
Bruce Kinosian ◽  
Rachel Miller ◽  
Wilma Chan ◽  
Frances Shofer ◽  
...  
Keyword(s):  
Pilot Study ◽  
Point Of Care ◽  
Point Of Care Ultrasound
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