A radiologic and anatomic study of the superior semicircular canal.

OBJECTIVES: The present study sought to determine whether there is a correlation between the prevalence of superior semicircular canal (SSC) dehiscence (SSCD) on temporal CT and population age. The secondary objective was to identify anatomic factors for SSCD by studying SSC diameter and its protrusion into the middle cranial fossa. The aim was to determine the acquired or congenital origin of SSCD (Minor's syndrome). MATERIAL AND METHOD: A single-center retrospective radiological and anatomic study included 180 CT scans of 354 petrous parts of the temporal bone taken between January and December 2011 in a university hospital center. Bone thickness above the SSC was measured and classified in 4 grades: grade 1, >2.5mm; grade 2, <2.5mm: grade 3, predehiscent; grade 4, dehiscent. SSC diameter was also measured, as was the height of SSC protrusion into the middle cranial fossa. RESULTS: SSCD was found in 0.8% of cases and predehiscence in 12%. Patients with dehiscence were older; patients with grade 3 or 4 were significantly older than those free of dehiscence (P<0.05). There was no significant difference in SSC diameter according to grade. In grade 1, protrusion was greater than in other subjects, with a significant correlation between age and reduced protrusion (P<0.05). CONCLUSION: The study demonstrated a correlation between aging and SSCD prevalence. Reduced SSC roof height with age suggests that SSCD may be an acquired phenomenon, related in some way to aging of the base of the skull.

Value of intra-operative neuromonitoring of the recurrent laryngeal nerve in total thyroidectomy for benign goitre.

OBJECTIVE: This study aimed to evaluate the impact of intra-operative neuromonitoring of the recurrent laryngeal nerve during total thyroidectomy for benign goitre. METHODS: A single-centre retrospective study using historical controls was conducted for a 10-year period, comprising a series of 767 patients treated by total thyroidectomy for benign goitre. Of these, 306 had intra-operative neuromonitoring of the recurrent laryngeal nerve and 461 did not. Post-operative laryngeal mobility was assessed in all patients by direct laryngoscopy before hospital discharge and at post-operative follow-up visits. RESULTS: In all, 6 out of 461 patients (1.30 per cent) in the control group and 6 out of 306 patients (1.96 per cent) in the intra-operative neuromonitoring group developed permanent recurrent laryngeal nerve palsy. No statistically significant difference was observed between the two patient groups. CONCLUSION: Intra-operative neuromonitoring does not appear to affect the post-operative recurrent laryngeal nerve palsy rate or to reliably predict post-operative recurrent laryngeal nerve palsy. However, it can accurately predict good nerve function after thyroidectomy.

Epidemiology, prognosis and treatment of simultaneous squamous cell carcinomas of the oral cavity and hypopharynx.

OBJECTIVE: The study was designed to assess the prevalence, management and survival of patients with simultaneous squamous cell carcinomas of the oral cavity and hypopharynx (OC/HP). MATERIAL AND METHODS: A multicenter, retrospective study (2 university hospitals) was conducted between 2003 and 2007 on a series of 96 patients with simultaneous squamous cell cancers of the OC/HP. RESULTS: A total of 88 men and 8 women were included in the study: 81 patients presented double sites, 14 presented triple sites and one presented quadruple sites. The tumour sites most frequently observed were: hypopharynx in 61% of cases (involving the pyriform sinus in 42% of cases) and the oropharynx in 59% of cases (involving the palatine tonsil in 30% of cases). Upper aerodigestive tract endoscopy under general anaesthesia revealed a simultaneous lesion not suspected on clinical examination in 45% of patients: the site discovered on endoscopy was hypopharyngeal in 2 out of 3 cases; the tumour was classified T1 or T2 in 95.5% of cases. Patients treated simultaneously for all sites had a better prognosis than patients in whom each tumour was treated separately. The 5-year specific survival was 34% and the 5-year overall survival was 28%. CONCLUSION: The prevalence of simultaneous squamous cell carcinomas of the oral cavity and hypopharynx ranges between 1 to 7.4% in the literature and was 4.6% in the present series. A common treatment strategy for each of the patient's tumours appears to be superior to the current theoretical approach that consists of considering each tumour separately.

Impact of the mode of hospitalisation on the postoperative complication rate after dissection tonsillectomy in children.

OBJECTIVES: To compare postoperative complication rates after dissection tonsillectomy in patients operated by outpatient surgery and patients operated by inpatient surgery. POPULATION AND METHODS: A prospective, single-centre, observational study was conducted over a period of 1 year. Dissection tonsillectomy was performed in 103 patients (mean age: 4 years) between September 2011 and September 2012. The following parameters were studied: bleeding or inflammatory complication rate, readmissions, unscheduled visits, factors contraindicating outpatient surgery, reasons for failure of outpatient surgery and influence of Postoperative Nausea and Vomiting scores. RESULTS: Two patient groups were composed: 54 patients were managed by outpatient surgery (Group O) and 49 patients were managed by inpatient surgery (Group I). The two main factors contraindicating outpatient surgery were age less than 3 years (40%) and preoperative suspicion of sleep apnoea-hypopnoea syndrome (26%). Seven patients of Group O had to stay in hospital (outpatient failure rate of 13%). Postoperative complications were observed in 13% of patients of Group O versus 12.2% of patients of Group I with no statistically significant difference between the two groups. One patient in each group had to be readmitted; no statistically significant difference was observed between the two groups (P=0.41). PONV scores were very high (2) in all cases. CONCLUSION: Outpatient tonsillectomy in well-selected patients is not associated with a higher postoperative complication rate than inpatient tonsillectomy. With systematic appropriate prophylaxis, Postoperative Nausea and Vomiting scores had no influence on the postoperative course.

Morbidity of central compartment dissection for differentiated thyroid carcinoma of the follicular epithelium.

OBJECTIVES: To study the morbidity of central compartment dissection in differentiated thyroid carcinoma of the follicular epithelium. MATERIAL AND METHOD: A retrospective study of 83 patients (61 patients operated by total thyroidectomy and 22 patients operated by total thyroidectomy and central dissection) was performed. Postoperative serum calcium and laryngeal mobility were studied and statistically compared (Chi(2) test, Fisher's exact test). RESULTS: No significant difference was observed between the two groups in terms of the incidence of recurrent laryngeal nerve paralysis or permanent hypoparathyroidism. In contrast, transient hypoparathyroidism was more frequent among patients undergoing thyroidectomy associated with central dissection (P=0.02). CONCLUSION: Central compartment dissection associated with total thyroidectomy does not increase the risk of recurrent laryngeal nerve paralysis or permanent hypoparathyroidism, but is responsible for an increased rate of transient hypoparathyroidism.

[Diffuse cervical cellulitis and descending mediastinitis]. / Cellulites cervicales diffuses et cellulites cervico- médiastinales.

PURPOSE OF THE STUDY: The principal objective is to evaluate the circumstances of diagnosis and the treatment of cervical cellulitis and descending mediastinitis. MATERIAL AND METHOD: It is about a retrospective study concerning ten patients, hospitalized between January 2000 and July 2011 in the University Hospital of Amiens for cervical cellulitis and descending mediastinitis, included according to Estrera's criterion. RESULTS: The starting point was oropharyngeal (tonsillitis) in 70% of the cases. The three main germs were Streptococcus spp, Streptococcus milleri and Prevotella spp. The diffusion of the infection was done mainly by retropharyngeal way. 70% presented a mediastinitis associated to cellulitis. All the patients were operated by cervical approach, two profited from an associated thoracic way. Only four patients did not have any complication of their cellulitis. One patient died. CONCLUSION: The early diagnosis of this pathology proves to be of primary importance. The treatment must be "aggressive". The drainage of mediastinitis proves to be sufficient by trans-cervical way in the event of the involvement of the higher part of the mediastinum (mediastinitis Endo type I) whereas a thoracotomy appears essential in the event of involvement beyond the carina (mediastinitis Endo type II).

[Cervical lymph node tuberculosis: diagnosis and treatment]. / Tuberculose lymphonodale cervicale: prise en charge diagnostique et thérapeutique.

OBJECTIVES: The purpose of this study was to evaluate the advantages of surgery for diagnosis and treatment of cervical lymph node tuberculosis. MATERIAL AND METHODS: This was a retrospective study from 1st January 1998 to 31st December 2007 including 30 patients with cervical lymph node tuberculosis. The population included 60% autochthones with a mean age of 47.1 years and a female predominance (73.33%). RESULTS: The lymph nodes were most often supraclavicular, unilateral, firm, and a mean 3 cm at its largest span. Lymph nodes were excised for diagnosis in 22 patients, which demonstrated specific granulomatous and giant cell lesions with caseous necrosis in 21 patients out of 22. Five abscessed adenopathies required surgical drainage, and three cases required repeated lymph node cleaning after well-conducted medical treatment. CONCLUSION: Surgery retains an important place in the diagnosis and treatment of cervical lymph node tuberculosis.

[Postoperative complications in total thyroidectomy for Graves disease: comparison with multinodular benign goiter surgery]. / Complications postopératoires dans la thyroïdectomie totale pour maladie de Basedow: comparaison avec la chirurgie des goitres non basedowiens.

OBJECTIVES: To study and compare postoperative complications of total thyroidectomy for Graves disease and multinodular benign goiters. MATERIAL AND METHODS: A retrospective study on 176 patients (37 with Graves disease and 139 with multinodular benign goiters) over a period of 41 months was conducted. Postoperative calcemia and laryngeal palsy as well as hemorrhagic and infectious complications were studied and statistically compared using the Kruskal-Wallis test. RESULTS: There was no statistical difference concerning the occurrence of postoperative laryngeal palsy, hypoparathyroidism or hemorrhagic complications between these two groups of patients. Only a more frequent immediate postoperative hypocalcemia (day 1) in the Graves disease group was found. CONCLUSION: Total thyroidectomy in the surgical management of Graves disease, after a cautious medical preoperative preparation, appears to be a safe technique. Total thyroidectomy must be performed instead of subtotal thyroidectomy in order to avoid recurrences.

Thyroid tubercle of Zuckerkandl: anatomical and surgical experience from 79 thyroidectomies.

OBJECTIVE: To highlight a poorly known anatomical variation of the lateral lobe of the thyroid gland, which can be useful in identifying the recurrent laryngeal nerve during thyroid surgery. MATERIALS AND METHODS: We performed a three-year prospective study of 79 thyroid surgery patients. Great attention was paid to anatomical variations of the thyroid gland (i.e. the presence or absence of a distinct tubercle of Zuckerkandl), the recurrent laryngeal nerve and the location of the parathyroid glands. RESULTS: A total of 71 right lobectomies and 74 left lobectomies were performed. Five tubercles of Zuckerkandl were identified (7.04 per cent of cases) and were useful in detecting the recurrent laryngeal nerve (but only on the right side). CONCLUSION: The tubercle of Zuckerkandl is a poorly known and variable anatomical feature of the thyroid gland which may not, in fact, be so rare. It arises for embryological reasons, and it can be a reliable anatomical landmark for identifying the recurrent laryngeal nerve during thyroid surgery. It should be included in the Nomina Anatomica as the 'processus posterior glandulae thyroideae' described by Zuckerkandl.

Parapharyngeal abscess: diagnosis and treatment.

To study the circumstances of diagnosis, predisposing factors, bacteriology and therapeutic management of parapharyngeal abscesses. This retrospective study over a period of 7 years concerned 16 patients hospitalized in an ENT and Head and Neck surgery department for parapharyngeal abscess. All patients were treated by intravenous antibiotics and steroids for 5-7 days. The length of hospital stay was 6-15 days. Parapharyngeal abscesses associated with peritonsillar and retropharyngeal abscess were all initially aspirated transorally for evacuation and bacteriologic examination. Five patients underwent surgical drainage (two via cervical incision, three by immediate tonsillectomy techniques and one by intra-oral drainage). Two patients presented jugular vein thrombosis. No life-threatening complication was observed. Patients were considered to be cured when cervical CT scan performed on D21-45 was normal. Parapharyngeal abscess is the second most common deep neck abscess after peritonsillar abscess. The diagnosis is both clinical and radiologic. CT scan is the best imaging examination for diagnosis and follow-up of parapharyngeal abscess. Non-complicated parapharyngeal abscesses require first-line medical management (intravenous antibiotics (amoxicillin and clavulanic acid) combined with steroids) and follow-up CT scan.