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Biomedical subjects

N Edwards

Publications and source records attributed to N Edwards.

At least 109 records · Page 6Linked to original sources
PubMed1985

Sunshine exposure and serum 25-hydroxyvitamin D concentrations in exclusively breast-fed infants.

The relationship between serum 25-hydroxyvitamin D (25-OHD) concentrations and sunshine exposure in 61 term, exclusively breast-fed infants younger than 6 months of age was investigated. Sunshine exposure was quantitated using a sunshine and clothing diary, which was verified by infant-adapted ultraviolet dosimetry. By multiple regression techniques, infant serum 25-OHD concentrations were significantly related to UV exposure and maternal serum 25-OHD concentrations. Infant 25-OHD concentrations correlated with sunshine exposure in infants whose mothers had low (less than 35 ng/ml) or high (greater than 35 ng/ml) serum concentrations of 25-OHD (r = 0.70, P less than 0.001 and r = 0.53, P = 0.004, respectively). Estimates were made to determine sunshine exposure conditions necessary to maintain serum 25-OHD concentrations above the lower limit of the normal range (11 ng/ml). A conservative estimate would be 30 minutes per week wearing only a diaper or 2 hours a week fully clothed without a hat.

Breast Feeding↗
PubMed1975

Septoplasty. Rational surgery of the nasal septum.

The Submucous Resection (S.M.R.) operation ascribed to Killian, still widely taught as the standard surgical treatment of obstructive septal deformities, has serious deficiencies in many common clinical situations. The reasons for this are critically discussed in the light of the surgical anatomy and physiology of the nose as a whole. The rational, conservative and versatile principle of septoplasty has evolved over half a century, until today the author considers that it should largely supersed the old S.M.R. The principles and the indications for septoplasty are discussed. The basic septoplasty procedure used by the author is described with practical details, together with all the variations and extensions possible as far as a complete septo-rhinoplasty. The importance is stressed of accurate assessment of the whole nasal problem and precise correction of all primary and secondary obstructive factors.

Cartilage↗
PubMed1975

Post-laryngectomy vocal rehabilitation using expired air and an external fistula method.

The advantages and problems of fistula speech in post-laryngectomy vocal rehabilitation are discussed. A pilot study of laryngectomees has shown the practical advantages and low risk of a primary one-stage external vocal fistula construction at the time of laryngectomy, allowing very early fistula speech. These results indicate the need for an intensive program to develop a definitive surgical procedure and prosthesis, with a view to applying the method to all types of laryngectomees.

Air↗