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Biomedical subjects

J H Phipps

Publications and source records attributed to J H Phipps.

23 records · Page 2Linked to original sources
PubMed1986

Tracheal carcinoma following short term tracheostomy in childhood (a case report).

Carcinoma of the trachea is rare in comparison to other neoplasms of the respiratory tract. Cigarette smoking has been implicated in its aetiology, but unlike carcinoma of the bronchus and lung, the incidence of tracheal carcinoma has not risen with tobacco consumption (Hajdu et al., 1970; Ranke et al., 1962). It seems, then, that there is some mechanism or mechanisms which render the trachea especially resistant to malignant change.

Aged↗
PubMedDate not supplied

Treatment of menorrhagia by radiofrequency heating.

A new technique is described for the treatment of menorrhagia by heating the whole of the endometrial cavity of the uterus. A capacitively coupled probe at 27.12 MHz is inserted into the uterine cavity, which causes the basilis layer to be raised to approximately 50-55 degrees C whilst the rest of the pelvic contents remain at approximately normal (body) temperature. A major advantage of the method is that no special hysteroscopic skills are required, unlike the two other techniques currently used for endometrial ablation: the Nd-Yag laser or the hysteroresectoscopic loop. Also no toxic flushing/distension fluids are necessary, as are required for all hysteroscopic surgery. The method, however, does require the application of a large amount of RF power to the probe and so care must be taken to position the probe correctly in order to prevent any serious complications. Of 32 patients given a single treatment at a power level of 550 W for 20 min, the 'success rate' was 84% with 31% becoming amenhorrhoiec and 53% showing significant reduction in menstrual bleeding. However, retreatment is possible and by this means, combined with improved treatment techniques, an even higher success rate could be achieved. In two of the earlier patients treated at 550 W a fistula was produced at the anterior vaginal wall which had to be surgically repaired. The probe was subsequently modified, since when this problem has not recurred. This new treatment approach offers an alternative to hysterectomy in the treatment of menorrhagia and may offer a number of significant advantages over methods currently used for endometrial ablation.

Adult↗