ArticleSurgical and radiologic anatomy : SRA2019
The parapharyngeal adipose corpus: anatomic and radiologic study.
Article in Surgical and radiologic anatomy : SRA, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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5 authors at 3 institutions in 1 country.
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Abstract
purposeAlthough the morphology of the parapharyngeal adipose corpus (PAC) has been already described, the clinical interest of its volume and weight in the genesis of obstructive sleep apnea syndrome (OSAS) is still controversial. The volume of the PAC has been determined in OSAS patients but not in a normal population. The aim of our study was to investigate the morphology of the PAC by dissection and MRI in a normal population and to determine if there is a relation between the dimensions and volume of the PAC and the Body Mass Index (BMI).
methodsThirty hemifaces of 15 fresh cadavers have been dissected after silicone injection with dissection of the external carotid artery and its main branches, with harvesting of the PAC. The PAC has been measured and weighed. Twenty-nine MRI of healthy subjects have been examined to determine the volume of the PAC, the palate-pharynx distance, and epiglottis-pharynx distance.
resultsIn dissection study the weight of the PAC was 18.57 g ± 2.24, the vertical dimension (height) was 4.61 cm ± 0.51, the frontal dimension (width) was 1.62 cm ± 0.24. The blood supply of the PAC constituted of branches coming from the ascending palatal and ascending pharyngeal arteries. The volume of the PAC on the right side was 1.56 cm
conclusionsThere is a correlation between the volume of the PAC and the BMI in a normal population. A surgical resection of the PAC in OSAS patients by transoral robotic-assisted surgery can be proposed with preservation of the ascending palatal and ascending pharyngeal arteries.
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