Publications by authors named "Munoz-Herrera A"

Objective: To evaluate vestibular compensation measurement of the vestibulo-ocular reflex (VOR) following vestibular schwannoma surgery and its relationship with changes in saccades strategy after surgery.

Patients: Thirty-six consecutive patients with vestibular schwannomas, without brainstem compression, underwent surgical resection. Patients were recruited from University Hospital of Salamanca, Spain.

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A 60-year-old male patient who previously underwent carotid and jugular paraganglioma resections was referred because of a mediastinal recurrence at the root of the great vessels. Coronary angiography confirmed the circumflex artery of the left coronary artery as the feeding artery of the tumour. The patient underwent surgery due to the tumour's location and malignant potential.

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Introduction: Dizziness is a frequent complaint in patients with vestibular schwannoma (VS). An abnormal vestibulo-ocular reflex (VOR) can explain this dizziness in patients with VS. The video Head impulse test (vHIT) offers a chance to describe specifically the VOR findings in such patients.

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Background: According to some authors, routine preoperative laryngoscopy should be the standard of care in all patients undergoing thyroid surgery. The rationale for this approach is (I) the risk that a patient has a preoperative vocal cord palsy (VCP) without symptoms; (II) the presence of VCP preoperatively is suggestive of invasive malignancy; (III) it is relevant for the use of intraoperative nerve monitoring; and (IV) surgical strategy may be better defined if a paralysed vocal cord is detected preoperatively.

Methods: This is a review of studies of patients who underwent routine preoperative laryngoscopy to anticipate preoperative VCP and that evaluated related risk factors, including previous surgery, voice function complaints, and a diagnosis of malignancy.

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Objective And Importance: The objective was to report the effectiveness of salvage treatment in soft tissue infection around cochlear implants with an absorbable gentamicin collagen sheet and a periosteum and skin rotation flaps.

Clinical Presentation: Three patients with cochlear implant and persistent surrounding soft tissue infection are included. All of them underwent antibiotic treatment prior to surgery without any response.

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The appearance of a primary germinoma in the central nervous system but not on or near the midline or within the brain is exceptional. It may occur at any age; however, it is rare in patients over 50 years old. Only a handful of cases of germinomas located in the cerebellopontine angle were presented, but to our knowledge, there has been no description of an isolated germinoma in the internal auditory canal.

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Objectives/hypothesis: To evaluate the vestibulo-ocular reflex and its relationship with subjective balance in a long-term follow-up after vestibular schwannoma surgery.

Study Design: Retrospective cohorts study in a tertiary referral hospital. Forty-nine consecutive patients on which vestibular schwannoma surgery was performed at least 1 year before.

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Conclusions: The degree of caloric weakness before surgery influences faster or slower recovery of patients undergoing vestibular schwannoma surgery. The Dizziness Handicap Inventory (DHI) is a good index to show the recovery of patients as it relates directly to an improvement or not of the subjective visual vertical (SVV).

Objective: To evaluate the process of recovery of patients as measured by the SVV and the DHI after surgical removal of vestibular schwannoma.

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Leiomyosarcomas are mesenchymal malignant tumours that appear in smooth muscle cells. Their most frequent locations are the uterus and gastrointestinal tract. Their occurrence in head and neck is considered exceptional.

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Goals: Evaluation of the audiological outcome and subjective satisfaction of BAHA Cordelle II in the treatment of patients with severe to profound bilateral mixed hearing loss.

Material And Method: Retrospective study of 12 patients suffering a severe to profound bilateral sensorineural hearing loss, using pure tone audiometry (PTA), speech audiometry and subjective evaluation before and after the implantation of a BAHA Cordelle II (Cochlear(®)).

Results: The average gain in conversational frequencies (0.

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Mucormycosis is an opportunistic fungal infection caused by fungi of the Mucorales order. It has a low incidence and is a potentially lethal infection which generally affects patients who are immunocompromised due to systemic disease. We report 7 cases of rhinocerebral mucormycosis in a retrospective study of 8 years (2000-2008) in haematological patients.

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The present article reviews the current panorama of the surgical treatment of carotid paragangliomas. The article begins by discussing surgical indications and preoperative aspects (Shamblins classification, the value of genetic study, informed consent, the utility of embolization, etc). Intraoperative aspects (surgical team) and features of the surgical technique (the patients position, incision and exposition, vessel control and identification of nerves, subadventitial or periadventitial tumoral excision, the need for arterial resection and reconstruction, etc.

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Head and neck paragangliomas are neuroendocrine tumors that express somatostatin type 2 receptors and can consequently be visualized through nuclear imaging techniques, using radionuclide-labelled somatostatin analogs, specifically 111In-pentetreotide. 111In-pentetreotide scintigraphy is a safe and non-invasive technique that can be used to explore the entire body; thus, multifocal paragangliomas as well as malignant paragangliomas with local and distant metastasis can be detected. Because this technique is functional, it is highly useful to confirm recurrence or residual tumors, as well as to follow-up patients undergoing surgery.

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Head and neck paragangliomas are slow-growing tumors and the initial symptoms are sometimes non-specific, often hampering and delaying diagnosis. These tumors may be asymptomatic, even when they have reached a considerable size. Symptomatology is highly varied in terms of anatomical location, stage (degree of invasion, local involvement and the presence of metastasis) and catecholamine secretion (pheochromocytoma), which not only produces a series of systemic manifestations but also serves as a guide to the search for specific genetic diseases, of which these tumors may be a component.

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The arterioveinous dural malformation (MAVD) is a rare entity between the vascular craneal anomalies with a not well nown ethiology and variability in treatments. We present eleven cases of MAVDs, between them five presented tinnitus as symptom of aparition. The importance of this pathology makes necessary to discard it before a patient consulting because of pulsaltil tinnitus with normal otoscopy.

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Aorto-oesophageal fistula is a well-reported pathology with several known causes. The co-existence of this pathology associated with the use of a Montgomery salivary bypass tube (MSBT) is exceptional and only one case is described in the literature. We present here a case report about an 81-year-old patient with an MSBT who died because of a massive upper gastrointestinal bleeding caused by an aorto-oesophageal fistula at the site of the MSBT.

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The complexity of the embriologic development of the neck and the possible abnomarlies in this process, with the consequent posterior manifestations make necessary the knowledge of the embriologic anatomy of the neck. In the possible manifestations that can be of the anomalies of the development of the branchial archs are the abnomarlies of the first branchial archs. They are, in the anomalies of the development of the branchial archs infrequent and are intimately related with the facial nerve.

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Objective: To describe the stage-related clinical features of 8th cranial nerve schwannoma.

Material And Method: Descriptive study of 71 patients whose diagnosis and/or treatment have been carried out at our centre between 1997-2003. Gender, age, and symptoms were considered, with special attention to gender.

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The third branquial arch anomalies represent less than 1% of this deformites. The clinical manifestation can be varied althouth the formation of cysts is the commonest one and may appear at any time in life. We report the clinical case of a 7 year old boy with an neck mass.

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Objective: The aim of this study was to build a preoperative predictive system which could provide reliable information about: 1 degrees which skull base meningiomas can be total or partially removed, and 2 degrees their surgical outcome.

Method: Patient histories and imaging data were reviewed retrospectively from 85 consecutive skull base meningiomas patients who underwent surgery from 1990 and 2002. From the preoperative data, nine variables were selected for conventional statistical analysis as regards their relationship with: 1 degrees total vs partial tumor resection and 2 degrees with patients outcome according to the degree of tumour removal.

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The random intergenic spacer analysis is a recently developed technique for the study of microbial populations. The bacterial intergenic spacer (ITS) is located between 16S rRNA and 23S rRNA genes and presents different length and sequence among bacterial species. Therefore, the amplicons can be separated by electrophoresis commonly performed at low voltage during several hours.

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Objectives: Non Hodgkin's lymphoma (NHL) is a frecuent tumor in the ENT field althougt there are not too many publications with a large number of patients.

Patients And Methods: We have studied 300 patiens with NHL and analysed the head and neck affectation, the presence in Waldeyer's ring, the first symptoms and the stage of the disease.

Results: Over 50% had head and neck manifestation.

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The parapharyngeal space-occupying lessions may develop from any of the structures located inside it. Uncommon although possible ethiologies for them are anatomic variations of the course of the internal carotid artery. These anatomic variants mainly arise from degenerative, mostly age-amplified, causes and lead to elongations, angulations, kinking and tortuosities in the course of the vessel that appear as impressions or protusions of the pharyngeal wall.

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