All outcome measures were applicable and acceptable to the patient group. Overall QoL and voice appears similar despite treatment arm, apart from the emotional subscale of the VoiSS. A randomized controlled trial is required to further assess this question.

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Between May 1997 and May 2001 all patients presenting with a unilateral vocal fold palsy at Gartnavel General hospital were entered into a prospective observational study. The sex, age, side of palsy and aetiology were documented. The aim of the study was to assess the current aetiology of vocal fold palsy in a large teaching hospital in the West of Scotland, and to compare this with the established aetiology in other parts of the world. Seventy-seven patients were studied. Eighty-three per cent were found to have a left and 17 per cent a right vocal fold palsy. The male to female ratio was 2:1, with an age range of 23-85, mean 61. Forty-three per cent of all vocal fold palsies were secondary to an underlying bronchogenic carcinoma and a further nine per cent due to other malignancies. This contrasted with figures quoted in other studies, that gave lung cancer causes of vocal fold palsies ranging from four to 22 per cent. Surgical trauma accounted for 24 per cent and in 11 per cent no cause was found. In conclusion, in our hospital population there is a high rate of vocal fold palsy secondary to bronchogenic carcinoma. This is likely to be associated with the high levels of smoking found in Scotland. Lung cancer rates in Scotland are 1.6 times greater for men, and two times greater for women than the world standard. Malignancies overall cause over 50 per cent of our vocal fold palsies. Vigilance is required in any patient presenting with a vocal fold palsy to ensure a malignancy is not overlooked.

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In a double-blind study forty-two children scheduled for elective adenotonsillectomy were randomized to receive peritonsillar infiltration, following induction of anaesthesia, with either 0.25% plain bupivacaine or 0.9% saline, 0.5 mllkg to a maximum of 10 ml. The children were assessed on awakening, and then ID minutes, I hour, 4 hours and 24 hours later. On each occasion the observer gave the child a pain score from 1 (no pain) to 5 (severe pain). The scores on awakening and after 10 minutes were significantly lower in the bupivacaine group (P< 0.05, Mann-Whitney U test). Thereafter there was no difference between the groups. The authors conclude that peritonsillar infiltration with bupivacaine is only moderately useful as analgesia for children having tonsillectomy.

ConclusionsA posterior fossa lesion is the cause of vocal cord palsy in 1-2% of cases. Despite low potential pickup rates, thorough imaging strategies such as those that currently exist for vestibular schwannoma screening avoid important missed diagnoses. We suggest updated imaging guidelines for investigating unilateral vocal cord palsy. A CT scan to include the posterior fossa may be adequate but MRI should be performed if clinical examination suggests skull base pathology or where clinical doubt remains. Further discussion is required between ENT clinicians and radiology colleagues to develop a UK national consensus for investigating vocal cord palsy. Keypoints• Unilateral vocal cord palsy is a common diagnosis in otolaryngology, with significant related morbidity. • A posterior fossa lesion is the cause of unilateral vocal cord palsy in 1-2% of cases. • Thorough clinical examination in conjunction with robust imaging strategies avoids missed diagnoses and consequent patient morbidity. • Imaging protocols vary widely, and no consensus currently exists. • The case that stimulated us to audit a case series and carry out a UK survey of current practice is presented. The results suggest that a more formal panel be set up to suggest an appropriate side-based protocol for the investigation of vocal cord palsy. Conflicts of interestNone.

Unilateral vocal cord palsy can result in a weak breathy voice and an inability to communicate effectively. This study was designed to assess prospectively the efficacy of polymethylsiloxane elastomer (Bioplastique) medialization injection therapy in patients with vocal cord palsy and terminal disease with particular regard to quality of life issues. Patients with unilateral vocal cord palsy secondary to malignant disease were offered Bioplastique injection. A digital voice recording was taken preoperatively and at 1 month, 3 months and 6 months postoperatively. Maximum phonation time (MPT) was recorded at the same intervals, and patients completed two questionnaires: the voice handicap index (VHI) and SF 36 general health questionnaire. Sixteen patients were entered into the study. There was a significant improvement in voice score, MPT, VHI and in three subgroups of the SF 36 at 1 month postoperatively, and the improvement was maintained in the small number who survived to 3 and 6 months. Bioplastique injection for unilateral vocal cord palsy produces a significant improvement in quality of life in addition to measured voice quality in patients with terminal disease. It should be recommended in patients even when the life expectancy is short.

Injury to the vagus nerve or one of its branches during carotid endarterectomy (CEA) can result in vocal fold paralysis (VFP). This study assessed prospectively 73 patients undergoing CEA. A total of 76 procedures were performed in these patients over a one-year period. All patients underwent preoperative and post-operative assessment of vocal fold mobility by indirect laryngoscopy and/or flexible nasendoscopy. All patients had normal vocal fold mobility pre-operatively. Eight patients (10 per cent) complained of hoarseness after surgery and in three patients (four per cent) examination confirmed an ipsilateral VFP. This persists in all three patients at six-month follow-up. Vocal fold assessment is important in patients undergoing CEA, particularly when performing second side surgery. We recommend that patients should be informed of the risk of VFP following CEA when obtaining consent.