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Biomedical subjects

E Helidonis

Publications and source records attributed to E Helidonis.

34 records · Page 2Linked to original sources
PubMed1992

Empty sella syndrome, diagnosed as allergic rhinitis.

Unilateral cerebrospinal fluid (CSF) rhinorrhea as the only manifestation of the primary empty sella syndrome is a rare event. A case of a middle-aged male patient complaining for intermittent unilateral rhinorrhea, which started 5 months earlier, is reported. The persistence of this state was attributed to an allergic rhinitis. The initial work-up excluded the above diagnosis and an erroneous radiological diagnosis led to a puncture of the left maxillary sinus. A lateral X-ray of the skull and CT scan led to the diagnosis of empty sella syndrome, possibly due to an adenoma or a meningocele.

Arachnoid↗
PubMed1991

Use of the excimer laser in stapes surgery and ossiculoplasty of middle ear ossicles: preliminary report of an experimental approach.

Surgery of the stapes may cause a number of complications, including hearing deficits and balance disorders. This has made it necessary to look for improved techniques. Small-fenestra stapedotomy has recently been popularized. Lasers have been advocated for use in fenestrating the stapes footplate. On the other hand, sculpting the middle ear ossicles during tympanoplasty is often necessary for the reconstruction of the ossicular chain and the improvement of sound conduction. Using an excimer laser with a wavelength of 193 nm, fenestrations of the footplate and ossicular sculpting were performed on ossicles obtained during ear surgery and from human cadaver temporal bones. The results indicate that the excimer laser can be used effectively and accurately on an experimental basis and that further research is needed before this method can be used for clinical purposes.

Cerebrospinal Fluid↗
PubMed1980

Ectopic thyroid gland in the submandibular region.

A rare case of an ectopic thyroid gland appearing as a submandibular mass in a 30-year-old female patient is presented. Special emphasis is placed on the origin, unusual location, functioning status, pathology and diagnostic problems created by this interesting case.

Adult↗
PubMed1979

[Paraganglioma of the nodose ganglion of the n. vagus].

A case of a 47-years-old female patient treated for a vagal body tumor is presented. The origin, clinical appearance and special diagnostic and therapeutic problems created by this rare tumor are discussed.

Cranial Nerve Neoplasms↗
PubMed1978

Granular cell myoblastoma of the larynx.

Two cases of granular cell myoblastoma of the larynx are presented. In the first case the tumour was excised by laryngofissure, and in the second case by microlaryngoscopy. Based on this experience a review of this interesting tumour is made, and emphasis is given to the fact that this neoplasm may be mistaken for squamous cell carcinoma.

Adult↗
PubMed1978

A schwannoma of the parotid gland. Report of a case.

An unusual case of multiple schwannomas of the parotid gland in a 44-year-old male is presented, and the natural history of the disease is discussed. Neural tumours of the salivary glands are rare, and the treatment of choice is surgery. Recurrence seems to be unusual unless the excision is incomplete.

Adult↗
PubMedDate not supplied

Laser shaping of composite cartilage grafts.

INTRODUCTION: The restoration of malformations of different etiology in the head and neck area continue to be a problem to the reconstructive surgeon. Many of these problems are created by the destruction of cartilage. The success of the reconstructive effort very often depends on the selection of a composite cartilage graft of proper size, shape, and thickness, which has to replace the missing cartilage. Despite the best of surgeon's intentions, the postoperative result is not always satisfactory due to the difficulty in obtaining a cartilage of the proper shape. Using a carbon dioxide laser, composite cartilage samples 0.4 to 1 mm thick taken from rabbits ears were irradiated. METHODS: Rabbit ear cartilage with covering epithelium was used. The thickness of the composite graft measured 0.4 to 1 mm. Specimens were reshaped, treated with a carbon dioxide laser, then immersed in saline. CONCLUSION: It was observed that it was possible to change the shape of the cartilage, which then had the tendency to retain its new form for several days. Thicker composite grafts retained the new shape more satisfactorily. The significance of this experiment for future corrective surgery in various parts of the head and neck area is evident. We anticipate that this technique may be useful to mold grafted cartilage for use in complex reconstructions such as nasal, auricular, and tracheal deformities.

Animals↗
PubMedDate not supplied

The histology of laser thermo-chondro-plasty.

INTRODUCTION: Giving a new shape to a cartilage graft has been a matter of continuous study. In 1991, our group managed to change the shape of human nasal septal samples using CO2 irradiation. This procedure, which we call thermo-chondro-plasty, was achieved without the macroscopic carbonization or ablation of the tissue. METHODS: To study the thermo-chondro-plasty effect of the CO2 laser irradiation on human nasal septal cartilage, samples were irradiated in selected laser parameters and then examined with light and electron microscopy. RESULTS AND CONCLUSION: We believe that it was primarily the proteoglycan component of the matrix in which we induced the maximum alterations. The destruction of their water-binding ability led to an uneven reduction of the interlocked tensile stresses of the cartilage and resulted in its transformation.

Humans↗
PubMedDate not supplied

Medicine and art: facial palsy depicted in archaic Greek art on Crete.

A small earthenware statuette was evacuated from the votive-depot of acropolis of Gortys, an ancient town in South-Crete/Greece. This ex-voto is dated approximately 7th to 6th century BC and very probably represents some symptoms of a stroke, especially the left facial palsy and the contracture of the left arm. Since the Minoan time until today, people of Crete have been offering ex-votos to gods or saints to ask for help in specific diseases.

Adult↗
PubMedDate not supplied

Audiologic and psychological profile of Greek patients with tinnitus--preliminary findings.

Tinnitus is a common complaint among people who suffer from auditory disorders. Altering the patients' response to tinnitus and the development of coping techniques are the most important goals of the therapeutic or suppression methods. This is the first study in the Greek population to investigate the personality characteristics and coping techniques of tinnitus patients. We have studied the relation between the subjective assessment of tinnitus intensity with factors such as sex, age, duration of symptom, and degree of hearing loss. We have also studied the possible relation between the patients' personality characteristics on their attitude towards tinnitus. The participants were 80 tinnitus sufferers, men and women, between 18 and 65 years of age. The personality characteristics were assessed with the Minnesota Multiphasic Personality Inventory (MMPI). The mean MMPI scores in both men and women were within the normal range. The duration of symptoms did not prove to be an important factor for the patients' subjective assessment of the tinnitus intensity. Most patients showed "effective" coping style, were well adjusted to tinnitus, and had no significant interference in their everyday functioning. The above are discussed in the context of the influence of geographical, climatological, economic, social, and cultural factors that influence psychological functioning.

Adaptation, Psychological↗
PubMedDate not supplied

Use of a new mucoperiosteal flap from the upper lateral nasal wall in frontal sinus surgery.

Various mucoperiosteal flaps from the nose (nasal walls) are in use today in frontal sinus surgery in cases where a wide opening between the frontal sinus and the nasal cavity is created. These flaps are transferred to cover denuded bone in the area of opening and thus prevent the opening from narrowing or closing, which would result in the reappearance of frontal sinus problems. In this paper, a new mucoperiosteal flap taken from the upper extension of middle turbinate is described.

Humans↗