ABSTRACT
The inverted papilloma is a unilateral sinonasal benign tumor which is characterized by aggressive local invasion, high recurrence rate, and transformation into malignancy. The etiology of inverted papilloma is still unknown. Possible causes include allergy, chronic sinusitis, occupational exposure to dusts and aerosols, tobacco, and viral infections. Treatment is complete surgical excision and close postoperative follow-up is necessary. Here we report a case of inverted papilloma arising from the hard palate with malignant transformation in a 41-year-old female. Clinical and histological features and treatment are discussed with the review of literature.
ABSTRACT
OBJECTIVE: Relapse after intraoral vertical ramus osteotomy (IVRO) is a subject of debate. The impact of the temporalis muscle on relapse has led to modifications, including liberating the temporalis muscle from the coronoid process or removing the coronoid process itself. The objective of this study was to evaluate the effect of coronoidotomy in preventing relapse after IVRO. STUDY DESIGN: Fifty-six patients with mandibular prognathism, selected for IRVO, were studied within a 21-month period. These patients were randomly divided into 2 groups. The patients were matched regarding cephalometric norms. The case group underwent the IVRO plus coronoidotomy, whereas the control group underwent the simple IVRO. Relapse ratio within the first year was compared between groups. Significant relapse was defined as relapse >30% of the primary setback. RESULTS: Twenty-seven patients in the study group and 29 patients in the control group were followed. The mean relapse ratio 1 year after surgery in B, menton, and pogonion points were greater in control subjects. The mean relapse ratio for ANB and SNB angle 1 year after surgery compared with the primary setback ratio was more in control subjects. CONCLUSION: This study suggests that IVRO along with coronoidotomy was slightly better than IVRO without coronoidotomy for treatment of mandibular prognathism.
Subject(s)
Mandible/surgery , Orthognathic Surgical Procedures/methods , Prognathism/surgery , Temporal Muscle/physiology , Adolescent , Adult , Cephalometry , Chi-Square Distribution , Female , Humans , Male , Mandible/abnormalities , Osteotomy/methods , Secondary Prevention , Single-Blind Method , Statistics, Nonparametric , Young AdultABSTRACT
PURPOSE: The purpose of this study was to compare the efficacy of ondansetron and metoclopramide, administered for the prophylaxis of vomiting in patients undergoing oral and maxillofacial surgery under general anesthesia. METHODS: One hundred patients undergoing mandibular osteotomy surgery were studied. Patients were allocated randomly to receive 1 of 2 treatment regimens: 0.15 mg/kg ondansetron or 0.5 mg/kg metoclopramide intravenously 30 minutes before extubation. All were adults and were treated by one surgeon and all operations were the same and lasted 2.5 to 3.0 hours. The patients were assessed at 3 time periods: 0 to 3 hours, 3 to 12 hours, and 12 to 24 hours postoperatively for emesis. RESULT: The data from this study showed that during the first 24-hour postoperative period, patients receiving ondansetron following general anesthesia had an 11% (11 patients) incidence of emesis compared with 28% (22 patients) in the group that received metoclopramide. CONCLUSION: In this study, ondansetron (0.1 mg/kg) was twice as effective in preventing postoperative vomiting compared with metoclopramide.
Subject(s)
Antiemetics/therapeutic use , Mandible/surgery , Metoclopramide/therapeutic use , Ondansetron/therapeutic use , Premedication , Adult , Anesthesia, Inhalation , Antiemetics/administration & dosage , Follow-Up Studies , Humans , Injections, Intravenous , Intubation, Intratracheal , Metoclopramide/administration & dosage , Ondansetron/administration & dosage , Osteotomy , Postoperative Nausea and Vomiting/prevention & control , Respiration, Artificial , Time Factors , Treatment OutcomeABSTRACT
AIM: Relapse is an important issue of concern following operations for mandibular setback. Decreasing the immobilization (IMF) period may play a role in this regard. Usual IMF period ranges from 1 to 2 months. We aimed to assess relapse following a 1-week IMF period. MATERIALS AND METHODS: This study aimed to assess 40 purely prognathic patients who had undergone Vertical Ramus osteotomy for mandibular setback. After the release of IMF, guiding elastics were used to direct the mandible to maximal intercuspation for 3 weeks. Relapse was measured from cephalometric radiographs preoperatively and 1 year postoperatively. RESULTS: The mean skeletal horizontal relapse after 1 year in 40 treated patients was 0.6 mm. CONCLUSION: The mean skeletal horizontal relapse after 1 year was similar to figures reported for this operation with longer fixation.
