Dataset Information

Evaluation of a novel simulation method of teaching B-lines: hand ultrasound with a wet foam dressing material.

ABSTRACT:

Objective

The aim of this study was to evaluate the effectiveness of teaching A- and B-lines, and lung sliding with a novel simulation methods using hand ultrasound.

Methods

All subjects enrolled were medical school students who were novices in lung ultrasound. All subjects attended a 20-minute lecture about lung ultrasound using simulated video clips of A-lines, B-lines, and lung sliding; and then a 20-minute post-test was administered. The post-test included questions on the presence or absence of A-lines, B-lines, and lung sliding using a random mixture of 20 real video clips and 20 simulated video clips created by using hand ultrasound with or without foam dressing materials. A Wilcoxon signed rank test was used to compare the scores of A-lines, B-lines, and lung sliding between the real images (RG) and simulated models (SG).

Results

There was a statistically significant difference in the median score of the correct answers for A-lines (RG, 18; SG, 17; P=0.037). Correct answers for B-line were significantly different between RG and SG group (RG, 18; SG, 17; P=0.008). There was a statistically significant difference in the median score of the correct answers for lung sliding (RG, 16; SG, 18; P<0.001).

Conclusion

We found this novel B-line teaching model by using a hand ultrasound with a wet foam dressing material is effective for beginners who are less experienced with lung ultrasound and pulmonary interstitial syndrome.

SUBMITTER: Lee KH

PROVIDER: S-EPMC5052869 | biostudies-literature | 2015 Jun

REPOSITORIES: biostudies-literature

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Publications

Evaluation of a novel simulation method of teaching B-lines: hand ultrasound with a wet foam dressing material.

Lee Kyoo-Hyun KH Ahn Jung-Hwan JH Jung Ru Bi RB Hong Chong Kun CK Shin Tae Yong TY Kim Young Sik YS Ha Young Rock YR

Clinical and experimental emergency medicine 20150630 2

<h4>Objective</h4>The aim of this study was to evaluate the effectiveness of teaching A- and B-lines, and lung sliding with a novel simulation methods using hand ultrasound.<h4>Methods</h4>All subjects enrolled were medical school students who were novices in lung ultrasound. All subjects attended a 20-minute lecture about lung ultrasound using simulated video clips of A-lines, B-lines, and lung sliding; and then a 20-minute post-test was administered. The post-test included questions on the pre ...[more]

PMID: 27752578

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Project description:In this research, we applied electrospinning to create a two-component biodegradable polymeric scaffold containing polysuccinimide (PSI) and antibacterial salts. Antibacterial agents for therapeutical purposes mostly contain silver ions which are associated with high environmental impact and, in some cases, may cause undesired immune reactions. In our work, we prepared nanofibrous systems containing antibacterial and tissue-regenerating salts of zinc acetate or strontium nitrate in different concentrations, whose structures may be suitable for developing biomedical wound dressing systems in the future. Several experiments have been conducted to optimize the physicochemical, mechanical, and biological properties of the scaffolds developed for application as wound dressings. The scaffold systems obtained by PSI synthesis, salt addition, and fiber formation were first investigated by scanning electron microscopy. In almost all cases, different salts caused a decrease in the fiber diameter of PSI polymer-based systems (<500 nm). Fourier-transform infrared spectroscopy was applied to verify the presence of salts in the scaffolds and to determine the interaction between the salt and the polymer. Another analysis, energy-dispersive X-ray spectroscopy, was carried out to determine strontium and zinc atoms in the scaffolds. Our result showed that the salts influence the mechanical properties of the polymer scaffold, both in terms of specific load capacity and relative elongation values. According to the dissolution experiments, the whole amount of strontium nitrate was dissolved from the scaffold in 8 h; however, only 50% of the zinc acetate was dissolved. In addition, antibacterial activity tests were performed with four different bacterial strains relevant to skin surface injuries, leading to the appearance of inhibition zones around the scaffold discs in most cases. We also investigated the potential cytotoxicity of the scaffolds on human tumorous and healthy cells. Except for the ones containing zinc acetate salt, the scaffolds are not cytotoxic to either tumor or healthy cells.

Dataset Information

Evaluation of a novel simulation method of teaching B-lines: hand ultrasound with a wet foam dressing material.

Objective

Methods

Results

Conclusion

Publications

Evaluation of a novel simulation method of teaching B-lines: hand ultrasound with a wet foam dressing material.

Similar Datasets

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