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Formerly Journal of Turgut Ozal Medical Center - ISSN 1300-1744

  • Annals of Medical Research

    Annals of Medical Research International Monthly Published Medical Journal

  • Annals of Medical Research

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  • Annals of Medical Research

    Annals of Medical Research indexed in TÜBİTAK/ULAKBİM Tıp Veri Tabanı

  • Annals of Medical Research

    Annals of Medical Research indexed in

  • Annals of Medical Research
  • Annals of Medical Research
  • Annals of Medical Research
  • Annals of Medical Research

Dear readers,

Our journal is the official publication of Inonu University Medical Faculty and published uninterruptedly for 25 years. It was first published as the name of Inonu University Medical Journal and later as Journal of Turgut Ozal Medical Center. During its publication period, the journal accepted Turkish or English articles for publication.

Abstracting in an international index is just a paramount objective in the 25th year of the journal. Because of this goal, it was necessary to make a decision both in terms of journal name and publication language. It was important in this respect that the name of a general medical journal should be related to medicine again and it should be in English. For these reasons, the name of the journal was switched to Annals of Medical Research and its publication language is changed to in English. The logo of the journal was chosen as an apricot, which is the symbol of our city Malatya, the world capital of apricot. I hope the journal succeeds with its new name. Annals of Medical Research is published monthly.



A practical method to improve preoxygenation: Using the APL valve (p.34-7)

A practical method to improve preoxygenation: Using the APL valve (p.34-7)

Mahmut Arslan, Cengizhan Yavuz
Kahramanmaras Sutcu Imam University, Medical Faculty Department of Anesthesiology, Kahramanmaras, Turkey

Copyright © 2020 by authors and Annals of Medical Research Publishing Inc.


Aim: After induction of anesthesia hypoxemia may rapidly develop due to hypoventilation, apnea and decrease in functional residual capacity. Thus, preoxygenation should be administered to every patient before anesthesia induction since airway management may unexpectedly be difficult. Applying positive airway pressure is reported to improve preoxygenation. In this study, we aimed to investigate the effect of applying positive pressure via the adjustable pressure limiting valve (APL) on preoxygenation.
Material and Methods: 40 patients aged from 18 to 80 years to be operated under general anesthesia were included in this prospective randomized controlled study. The patients were randomly divided into two groups and preoxygenation was administered with anesthesia facemask in the supine position using two different techniques. In both techniques, the anesthesia circuit was flushed with O2 flush for 30 seconds and then preoxygenation was performed with 100% oxygen and 12 L/min of fresh gas flow for 3 min in spontaneous breathing. In Group APL the APL valve was set at 5 cmH2O pressure position. In Group SB, the APL valve was set at open (spontaneous) position.
Results: The percentage of patients with an FeO2 of ≥ 90% at 3rd min was higher in Group APL than in Group SB (75% vs 40%, p=0.006). The mean FeO2 value at 3rd min was statistically significantly higher in Group APL (89.6 vs 88.2, p=0.001). The degree of the difficulty of the technique was reported to be higher in Group APL.
Conclusion: In conclusion, we have shown that applying 5 cmH2O positive pressure by APL valve improved preoxygenation compared with spontaneous breathing.

Keywords: Preoxygenation; airway management; adjustable pressure limiting valve



doi: 10.5455/annalsmedres.2019.12.902


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Annals of Medical Research is the scientific official journal of the Inonu University Faculty of Medicine. It is published monthly. The essential aim of the Annals of Medical Research is to publish scientifically high quality clinical and experimental research articles on fields of medicine which can contribute to the literature data. In addition, review articles, case reports, editorials, letters to the editors and manuscripts on publication ethics and medical history, which can contribute to the education and practices of physicians and health sector professionals within the scope of the journal’s target audience and which can increase the level of scientific communication between the authors and readers, are included in the scope of the journal.


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