Albert Gatot

Effects of Sodium Hypochlorite on Soft Tissues after Its Inadvertent Injection beyond the Root Apex

The effects of an inadvertent injection of sodium hypochlorite into the cheek during irrigation of the right maxillary central incisor root canal are reported. The patient suffered from severe pain, edema, and necrosis of subcutaneous tissues and mucosa. Surgical intervention was necessary to contain the destructive process which extended from the upper lip to the right eye. The histopathological examination demonstrated the high cytotoxicity of sodium hypochlorite on vital tissue.

Early outcome and complications of the extended subcranial approach to the anterior skull base

Objectives: To present the technique of the extended subcranial approach to the anterior skull base and to review the results in 55 patients who underwent the procedure. Study Design: Retrospective review of the records of 55 patients who underwent the extended subcranial approach to the anterior skull base between 1994 and 1998 for the treatment of various neoplasms originating in the nasal cavity, nasopharynx, paranasal sinuses, orbit, or meninges, as well as for the repair of complex craniofacial trauma and/or cerebrospinal fluid (CSF) leak. Preoperative patient evaluation and the surgical technique are also reviewed. Methods: Patient records were retrospectively reviewed and tabulated for age, sex, and indications for procedure, with special focus on early outcome and complications. Results: Twenty‐six patients underwent oncologic resections, 22 patients had reduction of complex fronto‐naso‐orbital and skull base fractures, and seven patients had repair of CSF leak. Significant complications in the oncologic group consisted of one hematoma requiring needle aspiration and two cases of temporary nontension pneumocephalus. In the fracture group, one patient died because of extensive intracerebral damage and multiorgan failure, and one patient had nontension pneumocephalus coupled with CSF leakage and one patient had temporary nontensisn pneumocephalus. The most common late complication in all three groups was anosmia. Conclusions: Based on their review, the authors conclude that the extended subcranial approach to the anterior skull base is a safe, versatile, and effective procedure for the surgical treatment of various pathological conditions involving the anterior skull base.

Growth potential of peripheral giant cell granuloma

PURPOSE The purpose of this study was to investigate the association of selected demographic, systemic health, and oral health characteristics of patients with large (> 2 cm) peripheral giant cell granuloma and to assess its growth potential and the possible underlying causes. METHODS A series of 79 cases including 15 subjects with lesions 2 to 5 cm in the largest diameter is presented. Age, sex, site, size, systemic health, oral hygiene, and report of oral dryness of subjects with large lesions were compared with those of subjects with small lesions (< 2 cm). RESULTS No differences were found in mean age between the small lesion group (mean age = 31 +/- 6 years) and the large lesion group (mean age 53 +/- 24.2 years). Female predilection (male/female ratio 1:1.5, 1:2.75.) was more significant in patients with large lesions. No statistically significant differences were found in systemic health score (mean American Society of Anesthesiology score 1.39, 1.53). Oral hygiene score (percent calculus 78% +/- 3.1%, 95% +/- 2.7%, percent gingival bleeding 58% +/- 3.6%, 73% +/- 5.4%, percent deep pocket 30% +/- 2.8%, 42% +/- 3.1) was better among the patients with small lesions. The percentage of patients with a report of oral dryness was significantly higher (3.1%, 27%) among patients with large lesions. CONCLUSIONS Findings from this study suggest that patients with large (> 2 cm) peripheral giant cell granuloma lesions are more likely to be women with lower oral hygiene scores and xerostomia. Further studies are required to measure the relative risk of these factors.

Early treatment of orbital floor fractures with catheter balloon in children

Fifteen pediatric patients with orbital floor fractures were successfully treated early, following injury by a transantrally introduced catheter-balloon technique. The latter stabilizes and supports the torn, but still vascularized periosteum at the edges of the fracture and also serves as a guide for its further proliferation and new bone formation. Apart from a transient anesthesia in the dermatome of the infraorbital nerve in certain patients no complication or sequela was noted in this series. Accordingly early repair with the use of catheter-balloon appears to be a viable alternative in the repair of orbital floor fracture in children.

Peripheral osteoma of the mandibular ascending ramus

than this increases the chances of a fracture of the mandible or amputation of the incisor roots. Any muscle attachments noted on the proximal segment after completion of the osteotomy can be released, and this will facilitate advancement of the bony segment. Sequencing of the steps of this procedure is important in preventing intraoperative fracture of the mandible. The genioglossal advancement and rigid plate fixation should be completed before the hyoid suspension. The bilateral tension of the suspension sutures on the proximal segment with a nonsplinted osteotomy could fracture an already weakened symphysis. Lastly, the patient must be kept on a strict soft, nonchewing diet for at least 4 weeks after surgery. The trapezoid osteotomy is a useful procedure for patients needing genioglossus advancement for the MANDIBULAR OSTEOMA

Osteoblastic osteitis of the maxillary sinus

Osteoblastic osteitis is a rare kind of bone infection typified by a proliferative reaction of the periosteum and by exuberant bone formation. In the maxillary sinus, it occurs as a consequence of chronic or recurrent sinusitis. It usually manifests with a vague facial discomfort, followed by complications in the deep facial spaces or fossae. The diagnosis is a radiological one. Eradication of this bone infection necessitates removal of the precipitating condition as well as the long‐term administration of appropriate antibiotics. In the case of a deep facial fossae abscess, drainage is mandatory.

Recurrent suppurative thyroiditis due to fourth branchial pouch sinus

Acute suppurative thyroiditis is a rare disease in childhood. The etiology of this condition is not always obvious. The description of a pharyngeal pouch fistula extending from the pyriform sinus to the thyroid gland or perithyroid area, high-lighted the etiopathogenesis of some of the thyroiditis cases. Presented here are the clinical, radiological and pathological aspects of an internal pharyngeal fistula manifesting with recurrent suppurative thyroiditis, until it was completely removed. The clinical features of caudal branchial pouch remnants and their role in the development of acute suppurative thyroiditis is reviewed.

Identification and typing of human papillomavirus (HPV) in squamous cell carcinoma of the oral cavity and oropharynx.

Recent epidemiological research has raised the possibility of a connection between viral infection by the human papilloma virus (HPV) and the existence of squamous cell carcinoma of the oral cavity and oroharynx (SCCa). Some 60 subtypes have been identified to date, and specific subtypes are associated with lesions or infections at specific tissue sites. Twenty-three patients with SCCa of the oral cavity were studied for the presence of HPV in their tumours. HPV DNA (all type 16) was isolated from four specimens (17.3 per cent) using the Polymerase Chain Reaction (PCR) method. The four patients were all over age 50, and had advanced tumours (two T3 and two T4) that originated in the oropharynx. Our data supports other reports in the literature, demonstrating the presence of HPV DNA type 16 within cells from oropharyngeal SCCa. We conclude that the PCR method is a useful and reliable method for the detection of HPV DNA within tumour cells.

The combined subcranial and midfacial degloving technique for tumor resection: Report of three cases*

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The use of standardized orbital ultrasound in the diagnosis of sinus induced infections of the orbit in children: a preliminary report.

Infections of the orbit in children usually present as a complication of sinusitis and may result in blindness or even death. Orbital cellulitis (OC) and subperiosteal abscess (SPA) represent different pathologies within the spectrum of orbital infections. The differentiation between OC and SPA is important, since it implies two different therapeutic modalities. While SPA is usually treated by incision and drainage and parenteral antibiotics, OC may be treated with antibiotics alone. Contrast enhanced CT scan is commonly used in the diagnosis of orbital infections, but does not always prove accurate in differentiating between these two conditions. MRI is superior to CT in the resolution of soft tissue pathology and may be more precise in such situations, but is less available imaging tool outside North America and Europe. There have been a few reports in the early 1980s on the use of standardized orbital ultrasound (SOU) in these two conditions. We have used SOU in seven children with sinus induced orbital infections--four with SPA and three with OC. We reviewed our experience in these patients and compared the imaging characteristics of OC and SPA on SOU with those of conventional imaging modalities, used in orbital infections. In four of the cases, CT scan was inconclusive, while SUO was diagnostic. In this preliminary report, we conclude that SOU may be useful in the diagnosis of orbital infections.