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J Neurol Surg B Skull Base 2017; 78(05): 419-424
DOI: 10.1055/s-0037-1603731
Original Article
Georg Thieme Verlag KG Stuttgart · New York

Spontaneous Cerebrospinal Fluid Rhinorrhea: Association with Body Weight and Imaging Data

Raphaële Quatre
1   Joseph Fourier University, UFR Medecine, Grenoble, France
2   Department of Otolaryngology-Head and Neck Surgery, Grenoble University Hospital, Grenoble, France
,
Arnaud Attye
1   Joseph Fourier University, UFR Medecine, Grenoble, France
3   Department of Neuroradiology, Grenoble University Hospital, Grenoble, France
,
Christian Adrien Righini
1   Joseph Fourier University, UFR Medecine, Grenoble, France
2   Department of Otolaryngology-Head and Neck Surgery, Grenoble University Hospital, Grenoble, France
,
Emile Reyt
1   Joseph Fourier University, UFR Medecine, Grenoble, France
2   Department of Otolaryngology-Head and Neck Surgery, Grenoble University Hospital, Grenoble, France
,
Joris Giai
4   Department of Epidemiology and Public Health, Grenoble University Hospital, Grenoble, France
5   Department of Biostatistics, Lyon University Hospital, Lyon, France
6   Claude Bernard University of Lyon 1, UFR Medecine, University of Lyon, Lyon, France
,
Sébastien Schmerber
1   Joseph Fourier University, UFR Medecine, Grenoble, France
2   Department of Otolaryngology-Head and Neck Surgery, Grenoble University Hospital, Grenoble, France
,
Alexandre Karkas
1   Joseph Fourier University, UFR Medecine, Grenoble, France
2   Department of Otolaryngology-Head and Neck Surgery, Grenoble University Hospital, Grenoble, France
7   Department of Otolaryngology-Head and Neck Surgery, Saint-Etienne University Hospital, Saint-Etienne, France
› Author Affiliations
Further Information

Publication History

12 March 2017

04 May 2017

Publication Date:
08 June 2017 (online)

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Abstract

Objective Spontaneous cerebrospinal fluid rhinorrhea (SCSFR) might be the only clinical manifestation of idiopathic intracranial hypertension (IIH), which has been historically related to overweight. Our goal was to search for an association between SCSFR and increased body weight on the one hand and SCSFR and imaging findings suggestive of IIH on the other hand.

Materials and Methods We retrospectively collected clinical and radiological data of patients operated on endoscopically for SCSFR in our institution from 1993 to 2013. Analyzed factors were body mass index (BMI), extended sphenoid sinus pneumatization on computed tomography, and empty sella and distention of the optic nerve sheath on magnetic resonance imaging.

Results There were 15 patients: 8 females/7 males; mean age 50 years. Primary surgical success rate was 86.7%. Regarding body weight, 80% were overweight (BMI ≥ 25) versus 32% in the French general population (p < 0.001). Among patients with SCSFR, 20% were obese (BMI ≥ 30) versus 15% in French individuals without SCSFR (p = 0.483). Increased pneumatization of sphenoid sinuses was observed in 92.9 versus 27.5% in the general population (p < 0.0001). Empty sella was found in 46.2 versus 3% in the general population (p < 0.00001). Dilation of the optic nerve sheath was observed in 46.2 versus 15% in the general population (p < 0.01).

Conclusion We found statistically significant associations between SCSFR and overweight, increased pneumatization of sphenoid sinuses, empty sella, and dilation of optic nerve sheath, but not with obesity, which did not have any additional impact of CSF leak than did overweight.

Keywords

spontaneous cerebrospinal fluid rhinorrhea - intracranial pressure - sphenoid sinus - pneumatization - empty sella - optic nerve sheath

Notes

This is a retrospective study analyzing charts of operated patients, thus involving human participants. This was in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. No informed consent was obtained from the patients because of the retrospective nature of the study. In other terms, at the time of surgery and follow-up, no study was ongoing. Years later, at the time of the study, only a chart analysis was performed and was kept anonymous. Besides, study ethics approval was obtained on July 29, 2015 (CECIC Rhône-Alpes-Auvergne, Clermont-Ferrand, IRB 5891).


 

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