Biomedical subjects

J Montalt

Publications and source records attributed to J Montalt.

24 records · Page 2Linked to original sources

PubMedDate not supplied

[The histological study of adenopathies in laryngeal cancer with supraglottic localization].

A histopathologic study was made to establish the prognostic importance of lymph node involvement in operable supraglottic laryngeal carcinoma. A total of 51 cancer patients underwent supraglottic horizontal laryngectomy with bilateral cervical dissection. The number of adenopathies the presence of capsule rupture and type of corresponding infiltration were significantly related to survival (p < 0.01). Prognosis was poorer in patients with more than three metastatic adenopathies and/or capsule rupture of one or more of them. Patient survival in cases with capsule rupture affecting one or more nodes was 36%, versus 33% among patients with three or more metastatic nodes. It is concluded that (a) the poor survival rate observed among these patients points to the need for more aggressive treatment protocols; and (b) cervical dissection should be performed systematically not only for therapeutic purposes but also to improve patient prognosis.

Adult↗

PubMedDate not supplied

[The effect of visual feedback exercises on balance in normal subjects].

The effects of visual feedback exercises on balance was studied in normal individuals, to evaluate the efficacy of visual feedback of postural oscillation in improving stability. A DINAS-CAN dynamometric platform designed by the Valencian Institute of Biomechanics (IBv) was used. Before to commencing training sessions, we determined the following parameters in each individual: (a) static stability, via posturography; and (b) individual ability to displace and voluntarily maintain the center of gravity within the limits of stability. All static measures were poorer after training, but the differences were not significant (p > 0.01). In contrast, the exercises performed via visual feedback of postural control improved significantly (p < 0.01). Training by visual feedback facilitates integration of visual, somatosensory, and vestibular information. In normal individuals, stability improves under excentric conditions, but no improvement is seen in the central resting position.

Adult↗

PubMedDate not supplied

[The new technique of studying cranial nerves VII, XI and XII: electroneurography by transcranial magnetic stimulation].

Transcranial magnetic stimulation (TMS) technique has been applied to the study of VII, XI and XII cranial nerves in 5 normal subjects, comparing the results with those obtained by conventional electrical stimulation. This technique allows us to study in a painless way the nerve function in all its pathway (motor cortex-motoneurone-muscle). In some cases, TMS yields potentials of a greater amplitude than those obtained by electrical stimulation, due to its capacity to penetrate deeply and stimulate all the fibers of the nerve.

Cranial Nerves↗

PubMedDate not supplied

[Fine-needle puncture-aspiration in the measurement of the DNA content by flow cytometry in head and neck tumors. Methodology and applications].

Fine needle aspiration was used to obtain samples from 15 patients with head and neck tumors for posterior analysis of their DNA content by flow cytometry. This technique afforded rapid and readily reproducible high quality histograms. A review was made of the malignancy criteria according to variations in DNA content. Good patient tolerance made it possible to apply the technique repeatedly to obtain samples for DNA analysis by flow cytometry, a method of great interest in monitoring response to different treatment protocols (chemotherapy, radiotherapy).

Biopsy, Needle↗

PubMedDate not supplied

[Computerized tomography in the detection of metastatic cervical lymph nodes].

The accuracy of computed tomography (CT) in detecting cervical lymph node metastases was studied. Twenty patients with squamous carcinoma of the head and neck were selected. The results obtained by cervical palpation, CT and postoperative histological study were compared. Palpation had a sensitivity of 64% and specificity of 100%. CT had a sensitivity of 71% and specificity of 100%. The small gain in sensitivity does not justify the systematic use of CT to study cervical lymph nodes in head and neck squamous carcinoma.

Carcinoma, Squamous Cell↗

PubMedDate not supplied

[Painful shoulder syndrome with drooping after cervical lymphatic dissection].

A study was made of 12 patients with head and neck cancer who underwent surgical neck dissection in 1993 to evaluate quantitatively the degree of postoperative shoulder dysfunction after surgical neck dissection. Nerve conduction studies were made of the accessory nerve and the range of motion, strength and position of the shoulder were evaluated. Patients were invited to complete a questionnaire about daily living activities, shoulder pain, shoulder movement and shoulder droop. Our results showed that abnormalities can be found in shoulder and arm function after any type of neck dissection and that these are evident when the accessory nerve is damaged. Subjective questionnaire findings generally coincided with objective postoperative dysfunction.

Aged↗