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Biomedical subjects

C M Philpott

Publications and source records attributed to C M Philpott.

8 recordsLinked to original sources

A double-blinded randomized controlled trial of coblation versus conventional dissection tonsillectomy on post-operative symptoms.

OBJECTIVES: The aim of this study was to compare postoperative symptoms following coblation tonsillectomy with those experienced following a traditional cold dissection. DESIGN: A prospective randomized controlled trial. SETTING: Secondary otorhinolaryngology care. PARTICIPANTS: Ninety-two adult patients with recurrent tonsillitis meriting tonsillectomy were recruited and randomly allocated into either coblation or cold dissection tonsillectomy groups. MAIN OUTCOME MEASURES: Primary outcomes were post-operative pain, otalgia, swallowing and analgesia use at 6-8 hours, 1, 3, 7 and 14 days post-operative. Secondary outcomes were post-operative day returned to eating and returned to normal activities/work. RESULTS: No significant differences between the two groups (P >or= 0.1) were found in any of the above primary outcomes, apart from swallowing at 6-8 hrs post-operatively where the cold dissection group had less pain. This group also returned earlier to normal eating (P = 0.03). The power of the study was sufficient to show a difference in the visual analogue scores of 2 between groups. CONCLUSIONS: The use of coblation to perform tonsillectomy does not confer any symptomatic benefits to the patient over conventional cold dissection tonsillectomy.

Adolescent↗

Variability of vascularity in nasal mucosa as demonstrated by CD34 immunohistochemistry.

Regional anatomical variations in the nasal vasculature have not been studied histologically. Immunohistochemistry performed using marker for CD34 antigen on vascular endothelium biopsied from 5 sites on the lateral nasal wall and compared with one septal biopsy. No significant regional variations in microvascular architecture over the lateral wall of the nose were found. * Lateral wall measurements were significantly different to the septal measurements (P = 0.0003, 0.01). Suggests biopsies can be taken from any site on the lateral wall and give a representative sampling of the vascularity for research purposes.

Analysis of Variance↗

The effect of the steroid sex hormones on the nasal airway during the normal menstrual cycle.

The changes in the nasal mucosa during the menstrual cycle have been little researched and the role of oestrogens debated. The aim of this study was to measure a spectrum of physiological parameters in relation to the peak and trough of these hormonal levels. Ten women underwent measurements at the onset of menses and at the time of ovulation. On each occasion, anterior rhinoscopy, peak inspiratory nasal flow, acoustic rhinometry, anterior rhinomanometry, mucociliary clearance time and rhinitis questionnaire score were recorded. All measurements except anterior rhinoscopy showed a difference between the two readings consistent with nasal congestion at the peri-ovulatory stage of the cycle, of which anterior rhinomanometry and mucociliary time were significant (P <or= 0.05). Nasal congestion therefore occurs in conjunction with the rise in serum oestrogens that occur at ovulation in the normal menstrual cycle. Pharmacological antagonism of oestrogens may therefore relieve nasal congestion and is currently under further research.

Adult↗

Nasal physiological changes during pregnancy.

Rhinitis in pregnancy has been previously investigated with variable results. This study examines all the variables of the nasal airway simultaneously for the first time. Eighteen women were recruited in the first trimester of pregnancy and followed through to the postpartum period to monitor the changes that occurred. Measurements of the nasal airway included anterior rhinoscopy (AnR), peak inspiratory nasal flow, acoustic rhinometry, anterior rhinomanometry (ARM), and the saccharin test with rhinitis questionnaire scores providing a symptomatic measurement. All the tests showed a trend consistent with decreasing nasal patency when expressed as an average for the group as a whole, although only AnR, ARM, mucociliary clearance time and rhinitis questionnaire scores were statistically significant (P < or = 0.05). This confirms the effect of pregnancy on the nasal mucosa and coincides with the rise in the serum concentration of the female sex hormones with gestational age, returning to normal postpartum. Pharmacological antagonism of oestrogens may therefore relieve nasal congestion and is currently under further research.

Airway Resistance↗

Which solvent for olfactory testing?

The physical properties of any carrier can deteriorate over time and thus alter the results in any olfactory test. The aim of this study was to evaluate clinically potential solvents as a clean odourless carrier for olfactory testing. Sweet almond oil, pure coconut oil, pure peach kernel oil, dipropylene glycol, monopropylene glycol, mineral oil and silicone oil were studied. The experimentation was conducted in two parts. First, an olfactory device was used to conduct air through the solvents on a weekly basis using a cohort of six volunteers to assess the perceived odour of each solvent at weekly intervals. Secondly a cross-reference test was performed using small bottled solutions of phenylethyl-alcohol and 1-butanol in 10-fold dilutions to compare any perceived difference in concentrations over a period of 8 weeks. We concluded that mineral oil is the most suitable carrier for the purpose of olfactory testing, possessing many desirable characteristics of an olfactory solvent, and that silicone oil may provide a suitable alternative for odorants with which it is miscible.

Adult↗

Paediatric retropharyngeal abscess.

Retropharyngeal abscess (RPA) is an uncommon condition with the potential for significant morbidity and mortality if not detected early. The authors present a case report of a 19-month-old child who presented with the common clinical features of a retropharyngeal abscess and in whom the diagnosis was not established by examination and ultrasonography. This led to a delay in appropriate management until a computed tomography (CT) scan was performed under general anaesthesia. The scan demonstrated the diagnosis and surgical drainage was performed under the same anaesthetic. The child subsequently made a complete recovery. The investigation and treatment of RPAs is a matter of some debate and the authors review the recent literature to determine the best management strategy.

Drainage↗