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Biomedical subjects

A Agrifoglio

Publications and source records attributed to A Agrifoglio.

10 recordsLinked to original sources
PubMed1998

Endoscopic treatment of posterior epistaxis.

Posterior epistaxis management remains a challenge. Besides their traumatic character, the usual treatments may cause as much morbidity and even mortality as the underlying pathology. A technique of endoscopically guided monopolar selective cauterisation was introduced in Lausanne at the end of 1987. Since then, 163 patients with a posterior epistaxis have been treated in our department. For 139 of these, endoscopic monopolar cauterization was the first treatment applied. Haemostasis was achieved at the first attempt in 82% of cases. The total success rate, including early recurrences controlled by a new cauterization, was 92%. Endoscopic monopolar cauterization requires the ability to perform nasal endoscopy, but presents few disadvantages. This technique represents a selective, relatively atraumatic, rapid and effective treatment. Moreover, costs are much lower than those of other methods. In our opinion, endoscopic monopolar cauterization should be the treatment of choice for posterior epistaxis.

Adolescent↗
PubMed1997

Evaluation of the bone resistance of the sphenoid and ethmoid sinuses.

Functional endoscopic sinus surgery can be associated with iatrogenic complications. Some anatomical structures have been identified this clinically as specific danger sites. The aim of this study was to confirm and to compare these clinical data with measurements of the bone resistance of the sphenoid and ethmoid walls and to point out regions that have increased bony fragility. Critical dynamometric evaluation of the resistance to breakage of these bony structures was made on 21 anatomic specimens. This study allowed the authors to localization of surgical complications, to demonstrate that other regions renowned for their fragility can be relatively robust, and to point out that robust sites can be dangerously fragile as a result of individual morphological variations. Results from this study provide a supplement to the guidelines for novice surgeons to use in identifying dangerous areas.

Endoscopy↗
PubMed1997

[Influence of naso-sinusal anatomic variants on recurrent, persistent or chronic sinusitis. X-ray computed tomographic evaluation in 112 patients].

Using CT scan, we studied the influence of the most important sinonasal anatomic variants on 112 patients, aged more than 16 years, suffering from recurrent, persistent or chronic sinusitis. The series was characterized by the absence of: multifocal sinusitis, polyposis, dental or mycotic sinusitis, traumatic, tumour, actinic or prior surgery. We compared our results with those of the literature. Our findings confirmed the association between recurrent, persistent or chronic sinusitis, and ipsilateral septal ridges or spurs (33%), unusual ipsilateral deflexions of uncinate process (31%), and contralateral septal watch glass like deviation (42%). We found no correlation for the other studied variants (concha bullosa, paradoxical curve of middle turbinate, pneumatised uncinate process, hypertrophic ethmoid bulla, Haller cell and accessory maxillary ostium).

Adult↗
PubMed1992

[Surgical anatomy of the middle meatus and ethmoid].

The evolution of rhino-sinusal endoscopy and the progress in endonasal surgery under endoscopic guidance, justifies a review of the ethmoid anatomy. A simple and logical scheme of the ethmoid bone is presented. The observer has to develop an "endoscopic eye" since the panoramic view offered by the optics modifies the image. Special attention is drawn upon the endoscopic anatomical fine points in the crucial area of the "bullar circus". These are necessary guides in surgical practice.

Endoscopy↗
PubMed1990

[Anatomic and endoscopic studies of the anterior ethmoid].

Introduction of present-day sinonasal endoscopy and progress in endonasal surgery under endoscopic guidance of endoscopy provide for anatomical exploration of the anterior part of the ethmoid bone, which is the crosspoint of the facial sinus draining paths. We propose to present here a simple and logical scheme of the topographical anatomy of the ethmoid bone. Classification of the ethmoidal cells allows to define the structures, whereby appropriate nomenclature may be adopted and certain confusions avoided. Thus, each cell within particular cell groups acquires a specific designation based on its draining paths and location in relation to basal lamellae. Endoscopic analysis also deserves being described in some length, since the panoramic view afforded by currently used optics modifies the image ans requires that the observer develop an "endoscopic eye". We draw attention to the endoscopic anatomical fine points in the crucial area of the bullar "circus". These landmarks come in as necessary guides in surgical practice.

Endoscopy↗
PubMed1988

[X-ray computed tomographic evaluation of the anterior ethmoid by parallel and perpendicular sections to the axis of nasofrontal duct. Preliminary study].

The anterior ethmoid is revisited with CT sections parallel and perpendicular to the axis of the naso-frontal duct. The sections obtained in these 2 planes allow a more precise topographic study of the anterior ethmoid than the routinely used axial and coronal CT slices. For the surgeon these sections provide an optimal preoperative study of the anterior ethmoid allowing the most conservative endoscopic surgical treatment.

Ethmoid Sinus↗
PubMedDate not supplied

Prevalence of ethmoid sinus abnormalities on brain CT of asymptomatic adults.

To evaluate the prevalence of ethmoid sinus abnormalities in adults without clinical history of sinusitis or allergic rhinitis, the brain CT scans of 156 patients were analyzed prospectively. In 17 cases (10.9%) the ethmoid labyrinth showed abnormalities. In most of these cases (88%) the ethmoid disease was localized to four or fewer cells. Men were more often affected than women (ratio, 2.5:1), and the prevalence of abnormalities was fairly similar across age groups.

Adolescent↗
PubMedDate not supplied

[Topographic anatomy of the ethmoid labyrinth in x-ray computed tomography].

These last years the surgical treatment of inflammatory ethmoid disease has been completely modified, with new endoscopic conservative procedures. In a preoperative phase it is mandatory to provide optimal CT imaging of the ethmoid labyrinth, and for this purpose sections perpendicular and parallel to the nasofrontal duct axis are better than axial and coronal slices. The anatomy of the ethmoid is fairly complex; however certain constant anatomic landmarks allow a systematic analysis of the ethmoid labyrinth: the unciform process, the bulla, the middle turbinate, the superior turbinate and their respective basal lamellae.

Ethmoid Sinus↗