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Medical Equipment Insights

Synopsis: An open access, peer reviewed electronic journal that covers developments in medical technology.


Indexing: 2 major databases.  Pubmed indexing for NIH-funded research.

Processing time: Decision in 2 weeks for 90% of papers.

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About this journal

ISSN: 1178-637X


Aims and scope:

Medical Equipment Insights aims to keep its readers at the forefront of developments in medical technology. This includes work on the use, development and evaluation of technologies, techniques and resources for diagnosis and care of patients, as well as for medical research purposes. Articles on telemedicine equipment and issues relating to development, funding and supply are also welcome. Technological innovation and change occur quickly today, and rapid publishing means readers can learn of breakthroughs and developments that much sooner.

Editorial standards and procedures:

Submissions, excluding editorials, letters to the editor and dedications, will be peer reviewed by two reviewers.  Reviewers are required to provide fair, balanced and constructive reports.  

Under our Fairness in Peer Review Policy authors may appeal against reviewers' recommendations which are ill-founded, unobjective or unfair.  Appeals are considered by the Editor in Chief or Associate Editor.

Papers are not sent to peer reviewers following submission of a revised manuscript. Editorial decisions on re-submitted papers are based on the author's response to the initial peer review report.

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This journal is indexed by:

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National Institutes of Health Public Access Policy compliant:

As of April 7 2008, the US NIH Public Access Policy requires that all peer reviewed articles resulting from research carried out with NIH funding be deposited in the Pubmed Central archive.

If you are an NIH employee or grantee Libertas Academica will ensure that you comply with the policy by depositing your paper at Pubmed Central on your behalf. 



 
 
 


Influence of Thermistor Probe Depth from the Anterior Nares on Measurement of Nasopharyngeal Temperature

Authors: Hiroaki Sato, Michiaki Yamakage, Katsumi Okuyama, Yusuke Imai, Hironobu Iwashita, Taishi Masamune, Tadahiko Ishimaya and Takashi Matsukawa
Publication Date: 16 Dec 2008
Medical Equipment Insights 2008:1 9-13

Hiroaki Sato1, Michiaki Yamakage2, Katsumi Okuyama1, Yusuke Imai1, Hironobu Iwashita1, Taishi Masamune1, Tadahiko Ishimaya1 and Takashi Matsukawa1

1Department of Anesthesiology, University of Yamanashi, Faculty of Medicine, Chuo, Yamanashi, Japan. 2Department of Anesthesiology, Sapporo Medical University School of Medicine, Sapporo, Hokkaido, Japan.

Abstract

Nasopharyngeal temperature is allegedly accurate and is generally used during cardiopulmonary bypass for open-heart surgery. However, adequate depth from the anterior nares to measure nasopharyngeal temperature has not been evaluated. To test whether nasopharyngeal temperature is sufficiently accurate and precise for clinical use and to clarify the suitable depth of insertion, we compared nasopharyngeal temperature measurements to simultaneous tympanic temperature measurements during open-heart surgery with cardiopulmonary bypass. Subjects comprised 4 women and 6 men undergoing cardiac surgery with a target core temperature of 32 °C. Nasopharyngeal temperature was measured at 4 sites by placing thermocouples in the nasal cavity in 1-cm increments starting at 2 cm from the anterior nares. The reference temperature (tympanic temperature) was measured at the right tympanic membrane using a thermocouple. Both temperatures were measured every 5 min and compared using correlation coefficients of linear regression (r2) and bias (mean difference between the two methods). Compared to tympanic temperature, nasopharyngeal temperature showed regression slopes of 0.91–1.03 and correlation coefficients of 0.55–0.65 at all 4 depths. Accuracy (offset or bias) was 0.9–2.1 °C compared to tympanic temperature. Precision (standard deviation) of measurements was 0.8–1.2 °C. Nasopharyngeal temperature collected at 2 cm varied the most from tympanic temperature. In conclusion, the reliability of T Naso is low for monitoring core body temperature during open-heart surgery with CPB, particularly if the probe is placed at a shallow depth from the anterior nares. Nasopharyngeal temperature obtained closest to the anterior nares (2 cm) were the least accurate.

Categories: Medical equipment


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