Biomedical subjects

J A Landeiro

Publications and source records attributed to J A Landeiro.

5 recordsLinked to original sources

PubMed2004

Endonasal endoscopic repair of cerebrospinal fluid rhinorrhea.

Cerebrospinal fluid (CSF) rhinorrhea implies a communication between the subarachnoid space and the upper respiratory tract. Trauma and postoperative defects are the more common causes of CSF rhinorrhea. The authors review their results with endoscopic repair of skull base defects associated with CSF rhinorrhea involving the paranasal sinuses. A total of 10 patients, 7 males and 3 females, were treated under endoscopic vision from 1997 to 2001. The causes of CSF rhinorrhea were traumatic (7), postoperative (2) and spontaneous (1). Four patients had the diagnosis and the site confirmed after intrathecal fluorescein-saline injection. The obliteration of the CSF leak was achieved with fat free, mucoperichondrial, or mucoperiostal free grafts taken from the middle or inferior turbinate and kept in place by fibrin glue. Primary closure was obtained in 10 patients and one patient developed a recurrence 14 months later. The repair of the CSF rhinorrhea by endonasal endoscopic surgery is safe, very effective and is a valid alternative to the cranial approach.

Adolescent↗

PubMed2001

[Sphenoidotomy approach to the sellar tumors: technical note].

Dissection of mucosa from the nasal septum during transphenoidal approach can lead to significant morbidity. We report our experience with sphenoidotomy approach to the sella. This procedure obviates this dissection and its complication as septal perfurations, anosmy and epistaxis. Sphenoidotomy can be done under the microscopic view, endoscopic techniques and even with headlight. This approach is a safe and effective alternative to traditional or endoscopic exposures to the sella.

Adenoma↗

PubMed2001

[Meningiomas of the cavernous sinus: the surgical resectability and complications].

The optimal management for patients with cavernous sinus meningiomas is to evacuate tumor without causing mortality or morbidity. The records of 16 patients, including 11 women and 5 men ranging in age from 31 to 63 years, underwent surgical treatment for this condition were reviewed. Completeness of tumor resection, cranial nerve morbidity, complications, mortality, the internal carotid artery encasement and outcome were studied. Total removal was achieved in six patients. Of ten patients who underwent subtotal resection there was one death and four were sent to radiotherapy. Morbidity was 24% for cranial nerves controlling extraocular motor function; trigeminal nerve function did not improve after surgical treatment. Symptomatic recurrence occurred in two patients who underwent subtotal tumor resection and in one who underwent complete tumor resection. The average follow-up period was of 26 months. According to our findings, we conclude: 1) the resectability of meningiomas of cavernous sinus depends on the degree of internal carotid artery involvement; 2) total resection of meningiomas confined in cavernous sinus is rare; 3) morbidity of the cranial nerves is significant; 4) subtotal resection is an effective mean to obtain control of the disease.

Adult↗

PubMed2000

[Subfrontal approach in sellar and suprasellar lesions].

A variety of mass lesions are placed in and around of the sella turcica. Although their common location these lesions have distinguishing features and different approaches can be selected. There are conventional transcranial and sophisticated skull base approaches. We report our experience with a subfrontal route to the sellar region. Between February 1997 and March 1998, 19 tumors placed around the sella have been treated surgically by this method. Eleven of them were pituitary tumors, 3 were craniopharyngeomas, 2 were meningiomas, and 1 was germinoma. Total removal was achieved in 17 cases. There was not operative mortality. Postoperative complications included twelve cases of unilateral anosmia and four cases of transitory diabetes insipidus. Progressive stroke occurred in one patient. These results stress the importance of the subfrontal approach to reach such lesions in sellar region.

Adenoma↗

PubMed2000

Posterior fossa craniotomy. Technical report.

The use of craniotomy to approach supratentorial lesions is quite well established in the literature. The use of craniotomy for posterior fossa approaches, however, is not well described. The aim of this article is to describe the technical aspects of this approach and to delineate the important landmarks. In our cases, posterior fossa craniotomies have been utilized for treat different pathologies. Additionally, the technique has not added any additional risk, and the cosmetic results have been excellent.

Adult↗