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Factors predicting length of stay in patients hospitalized for acute parotitis
  1. Avinoam Markovich1,
  2. Ohad Ronen1,2
  1. 1 Azrieli Faculty of Medicine Bar-Ilan University, Safed, Israel
  2. 2 Otolaryngology - Head and Neck Surgery, Galilee Medical Center, Nahariya, Israel
  1. Correspondence to Dr Ohad Ronen, Galilee Medical Center, Nahariya 2210001, Israel; ohadr{at}


Acute suppurative parotitis (ASP) is an acute infection of the parotid gland that necessitates hospitalization in some patients. The aim of this study was to evaluate clinical laboratory values including hydration, nutritional status, inflammatory markers and age, and to compare them with duration of hospitalization of patients with ASP. This is a retrospective chart review in a tertiary academic center. We investigated the factors affecting length of hospitalization in patients admitted to Galilee Medical Center with a diagnosis of ASP between 2010 and 2018. Of the 60 patients with ASP included in the study, 24 were male. The average age of patients was 60, ranging from 18 to 99. We found statistically significant correlations between length of hospitalization and patient age (r=0.3), C reactive protein (r=0.3), white cell count (WCC) at presentation (r=0.3), blood urea nitrogen to creatinine ratio (BUN:Cr) (r=0.2), and platelet levels at discharge (r=0.4). Examination of these factors on multivariate analysis found hospitalization duration was exclusively affected by patients’ level of dehydration as represented by BUN:Cr. Patient age, WCC levels at presentation, and platelet levels were not found to be statistically significant. Treatment and interventions should be planned accordingly.

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  • Presented at This work was presented at the fifth Congress of European OtoRhinoLaryngology-Head and Neck Surgery on June 30, 2019.

  • Contributors OR: conception and design of the work; analysis and interpretation of data for the article; drafted the work and critically revised it for important intellectual content; approved the final version for publication; and agreed to be accountable for all aspects of the work, including ensuring that any questions related to the accuracy or integrity of all aspects of the work were appropriately investigated and resolved. AM: drafted the work and revised it critically for important intellectual content and approved the final version to be published and agreed to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work were appropriately investigated and resolved.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Patient consent for publication Not required.

  • Ethics approval Data were collected from clinical charts while preserving confidentiality. The study was approved by the Galilee Medical Center Institutional Review Board prior to its commencement (NHR018420).

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Data availability statement Data are available upon reasonable request from the Department of Otolaryngology-Head and Neck Surgery, Galilee Medical Center, Nahariya.

  • Author note AM wrote this article in fulfillment of one of the requirements for the degree of Doctor of Medicine at Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel.

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