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Biomedical subjects

W Singh

Publications and source records attributed to W Singh.

At least 19 recordsLinked to original sources
PubMed1992

Computerised measurement of fundamental frequency in Scottish neoglottal patients.

An electrolaryngograph has been used to investigate the fundamental frequency of neoglottal speech produced by patients who have undergone near-total (parsimonious) laryngectomy. The resulting estimates of fundamental frequency were compared with the fundamental frequency of normal and oesophageal speakers of a similar age and Scottish dialect. It was found that the average fundamental frequencies of neoglottal and oesophageal male speakers were higher than those in the normal group, though many fall into the normal range. The fundamental frequency of the single neoglottal female speaker was higher than the normal average, but the fundamental frequencies of all of the oesophageal female speakers were lower than those of the normal female speakers. The 80 and 90% ranges of the alaryngeal speakers were wider than those of the normal speakers, but the average range of neoglottals was narrower than that of the oesophageals for the male speakers.

Female↗
PubMed1992

Perceptual comparison of neoglottal, oesophageal and normal speech.

The sex, normality, intelligibility, rate, rhythm and intonation of 44 neoglottal, oesophageal and normal speakers have been judged by a panel of 10 trained listeners. It was found that the sex of the alaryngeal speakers was perceived correctly much less reliably than that of the normal speakers. Neoglottal speakers were rated more normal and intelligible than oesophageal speakers. The speaking rate of neoglottal speakers was judged not to be significantly different from that of normal speakers. Neoglottal speakers were considered more fluent and to have better intonation than the other alaryngeal speakers. Thus neoglottal speakers were found, on average, to be as good as or better than good oesophageal speakers in each of the respects of which judgements were made.

Adult↗
PubMed1992

Acute filarial myositis.

An uncommon case of filariasis presenting as acute myositis is described. The patient was treated initially with steroids and antihistamines with no response. Later on with the confirmation of filariasis he was treated with diethyl carbamazine with complete recovery.

Acute Disease↗
PubMed1991

Idiopathic oedema--a missed entity.

Twenty nine patients were diagnosed to have idiopathic oedema; 27 (93.1%) of these were females. Associated psychological symptoms were observed in 86.2% of patients. The most common associated symptoms were related to autonomic dysfunction. Obesity and diuretic abuse were found in 48.3% and 41.4% of patients respectively. The association of bizarre symptoms with idiopathic oedema is a common feature.

Adult↗
PubMed1988

Clinical application of electrolaryngograph for speech rehabilitation in near-total laryngectomy with myo-mucosal valved neoglottis.

Near-total laryngectomy with myomucosal valved neoglottis is the most recent of the various surgical procedures for speech rehabilitation. The electrolaryngographic wave form (Lx), which was recorded initially to explore the site and mechanism of phonatory function of the neoglottis, has been successfully used in speech rehabilitation of these patients. In a pilot study it was tried as a visual feedback. The results confirm its utility for speech rehabilitation of these laryngectomees.

Electrodiagnosis↗
PubMed1987

Tracheostoma valve for speech rehabilitation in laryngectomees.

In the newer surgical procedures for fistula speech, finger occlusion of the tracheostoma is mandatory for speech production. This can be embarrassing as it draws attention to the patient's stoma. Finger occlusion is unhygienic and at times inconvenient. A new tracheostoma valve has been designed to eliminate the need for finger occlusion for speech. It has been evaluated clinically in nine laryngectomees, all of whom retained a good objective quality of speech similar to that obtained by finger occlusion. Vocal efficiency measurements with the valve are very encouraging. The valve is simple to use, of universal size, self-retaining, does not need any skin cleansing and obviates the need for skin adhesives to hold the valve in place.

Equipment Design↗
PubMed1987

Electrolaryngography in near-total laryngectomy with myo-mucosal valved neoglottis.

Near-total laryngectomy with myo-mucosal valved neoglottis is the most recent of the various surgical procedures for speech rehabilitation. The site and mechanism of phonatory function of the neoglottis has been investigated in eight patients by means of electrolaryngography. Results demonstrate substantial similarity in the nature of function of the neoglottis when compared with the normal human glottis.

Glottis↗
PubMed1985

Near-total laryngectomy with myo-mucosal valved neoglottis.

The entire larynx is usually sacrificed in the process of surgical treatment of T3 glottic carcinoma, trans-glottic carcinoma and pyriform sinus carcinoma, with consequent loss of speech. Most of the uninvolved, cancer-free part of the larynx is discarded for no good reason. According to the surgical principles of oncology, a tumour should be removed with clear margins, but this does not necessarily mean that the whole organ has to be extirpated. In a recently applied surgical procedure, the small tumour-free part of the larynx is fashioned into an innervated myo-mucosal valved shunt joining trachea and pharynx. This neoglottis allows expiration into the pharynx in speech production but it also contracts during swallowing to avoid aspiration. The first four consecutive cases in which this procedure has been carried out with complete success are presented.

Carcinoma, Squamous Cell↗