Terje Osnes

• Mevik, Kjersti; Tysvær, Gunnbjørg; Solli, Torill & Osnes, Terje (2024). Delayed cervical emphysema after thyroidectomy: A case report and a literature overview. Journal of Surgical Case Reports (JSCR). 2024(7). doi: 10.1093/jscr/rjae435. Full text in Research Archive Show summary

  Thyroidectomy is a surgery performed due to both benign and malign diseases in the thyroid. The overall complication rate is low, where most of them will appear within the first 24 hours after surgery. However, severe complications can occur as late as 14 days postsurgery. A woman in her late 30’s underwent total thyroidectomy due to Graves' disease. There were no complications until she presented with swelling on her neck 10 days after surgery. She was diagnosed with cervical emphysema and treated with a controlled negative pressure drain until there was no more air leakage. We assumed that the emphysema was due to an occult injury of the trachea. Urgent evaluation and hospitalization are needed if the patient presents with swelling in the neck after thyroidectomy. Surgeons should be aware of this delayed complication, so they are able to inform and manage their patients accordingly.

• Dheyauldeen, Sinan Ahmed Dheyauldeen; Heimdal, Ketil Riddervold; Osnes, Terje; Akre, Harriet & Olsson, Lars H. (2024). Choanal atresia: A review of surgical outcomes in a tertiary medical center. World Journal of Otorhinolaryngology - Head and Neck Surgery (WJOHNS). ISSN 2095-8811. doi: 10.1002/wjo2.196. Full text in Research Archive Show summary

  Introduction Choanal atresia (CA) is a congenital narrowing or obliteration of the posterior nasal aperture. The condition is rare with an incidence of approximately 1 in 5000 to 9000 live births. Objective The aim of this work was to assess the results of treating this condition at the Otolaryngology Department in Oslo University Hospital-Rikshospitalet. Methods Retrospective review of patients treated at Oslo University Hospital-Rikshospitalet between 2005 and 2015 were performed. The review consisted of surgical techniques and outcomes, types of atresia, uses of stent and mitomycin C, age at operation, laterality of atresia, and associated anomalies. Results Thirty-one patients with CA were referred to Oslo University Hospital-Rikshospitalet during the mentioned observation period. Nine (29%) of the cases had bilateral CA and 22 (71%) had unilateral CA. Ten patients (32%) had bony atresia, 12 (39%) had membranous and eight (26%) had mixed type of atresia. Twenty-one patients (68%) needed revision surgery because of complete or partial restenosis after primary surgery. Stents were applied in 16 cases (52%) of patients and Mitomycin C was only used in the primary surgery of three patients. In the bilateral group, eight of the nine patients were operated on within the first 9 days of life. Sixteen patients (45%) had associated anomalies. Conclusions According to the observations in our sample, the restenosis problem is expected more and may need more revisions in bilateral CA than the unilateral type. The presence of other anomalies is associated with higher incidence of restenosis. Stenting is not essential in preventing restenosis. Key point Risk factors of restenosis in choanal atresia.

• Huynh, Thuy-Tien Maria; Aass, Hans Christian Dalsbotten; Falk, Ragnhild Sørum; Astrup, Guro Lindviksmoen; Helland, Åslaug & Bjøro, Trine [Show all 14 contributors for this article] (2022). Associations between patient-reported late effects and systemic cytokines in long-term survivors of head and neck cancer treated with radiotherapy. Journal of cancer survivorship. ISSN 1932-2259. doi: 10.1007/s11764-022-01273-1. Full text in Research Archive Show summary

  Purpose Head and neck cancer (HNC) treatment may lead to late effects and impaired health-related quality of life of survivors. Knowledge on long-term late effects after radiotherapy (RT) and potential underlying biological mechanisms is lacking. We assessed the prevalence of xerostomia, dysphagia, and chronic fatigue (CF) in HNC survivors ≥ 5 years post-RT, and examined associations between pro-inflammatory cytokines and late effects. Methods In a cross-sectional study, 263 HNC survivors treated between 2007 and 2013 were enrolled. They completed validated questionnaires assessing xerostomia and dysphagia (the EORTC QLQ-H&N35), and CF (the Fatigue Questionnaire), and underwent blood sampling and clinical examination. Pro-inflammatory cytokines were analyzed in 262 survivors and 100 healthy age- and gender-matched controls. Results Median time since treatment was 8.5 years. The proportions of survivors reporting xerostomia, dysphagia, and CF were 58%, 31%, and 33%, respectively, with a preponderance of females. We found no significant associations between IL-6, IL-8, IP-10, TARC, TNF, or ENA-78 and the three late effects. The odds of having elevated levels of IL-6 and IP-10 were significantly higher in the survivors compared to the controls. Conclusions More than one-third of long-term HNC survivors experienced xerostomia, dysphagia, and CF. Persistent inflammation, with elevated systemic cytokines, was not associated with these late effects, although HNC survivors had higher levels of some cytokines than the controls. Implications for Cancer Survivors This study provides new knowledge on late effects that can serve as grounds for informing patients with HNC about risk of late effects more than 5 years after RT.

• Skalleberg, Jakob Rasmussen; Myhrum, M.; Småstuen, M.C.; Osnes, Terje; Fosså, Sophie Dorothea & Bunne, M. (2021). Speech perception 30 years after cisplatin-based chemotherapy in adults: limited clinical relevance of long-term ototoxicity? Acta Oncologica. ISSN 0284-186X. 60(4), p. 426–433. doi: 10.1080/0284186X.2021.1887514. Full text in Research Archive
• Lorntzsen, Bianca M.R.; Brøndbo, Kjell & Osnes, Terje Andreas (2020). From the clavicle to the windpipe: Tracheal window resections reconstructed with calcifying periosteum in thyroid cancer. Laryngoscope Investigative Otolaryngology (LIO). 5, p. 961–968. doi: 10.1002/lio2.463. Full text in Research Archive Show summary

  Objectives We aimed to evaluate the outcomes of tracheal window resection and reconstruction using a vascularized periosteal flap (intended for calcification) harvested from the medial clavicle. This is one of several surgical techniques for tracheal resection and reconstruction used for patients with thyroid carcinoma invading the trachea. Importantly, in partial tracheal resection postoperative dynamic airway collapse must be prevented. Reconstruction of the tracheal defect with a vascularized periosteal flap is one method of achieving a stable airway. Methods Twelve patients with locally advanced thyroid carcinoma who underwent tracheal resection and reconstruction at Oslo University Hospital from 2004 to 2017 were studied retrospectively. The primary outcome was a stable airway not requiring airway stenting. The secondary outcomes were the time to decannulation, morbidity, and survival. Results Eleven of 12 patients did not require airway stenting postoperatively after a median of 111 days. Seven patients developed postoperative complications. The median observation time was 74.8 months (range 10.5‐153.5) for all patients. The median disease‐free survival was 40 months (range 0‐147). By February 1, 2020, seven patients were alive, of whom five showed no evidence of disease. Conclusions Tracheal reconstruction with a vascularized periosteal flap yielded good results in terms of establishing a stable airway. This procedure is a viable reconstructive option that allows for decannulation by preventing airway collapse, thereby potentially mitigating the need for end‐to‐end (ETE) anastomosis or sleeve resections. For selected patients, this procedure may prevent local fatal complications from thyroid cancer invading the trachea. Level of evidence Level 4.

• König, Marton; Osnes, Terje; Bruland, Øyvind; Hall, Kirsten Sundby; Bratland, Åse & Meling, Torstein Ragnar (2020). The role of adjuvant treatment in craniofacial malignancy: A critical review. Frontiers in Oncology. 10. doi: 10.3389/fonc.2020.01402. Full text in Research Archive Show summary

  Background: Tumors originating from the craniofacial region usually present in a locally advanced stage with frequent involvement of adjacent sites and have a strong tendency for local recurrence in the absence of adjuvant therapy, even when the original surgical resection was presumed to be radical. In the past decades, several advances in the radiological diagnosis and treatment of craniofacial malignancies have been introduced. There are, however, no randomized trials that define the optimal multimodal treatment of these tumors because of their rarity as well as heterogeneity in both histology and site of origin. The aim of this study was to conduct a critical review of the role of adjuvant therapy in the treatment of craniofacial malignancy. Method: We conducted a critical review of the past and contemporary literature available, focusing on adjuvant oncological treatments of the most common craniofacial malignancies. Results: Preoperative radiotherapy can have a documented role in the treatment of olfactory neuroblastoma and soft tissue sarcoma, while preoperative chemotherapy can be advocated in the treatment of sinonasal undifferentiated carcinoma, neuroendocrine carcinoma, olfactory neuroblastoma, and craniofacial sarcoma (both soft-tissue and high-grade osteosarcoma). Postoperative radiotherapy has a well-established role in the treatment of most craniofacial malignancies. The role of postoperative chemotherapy is unclear in most histologies, but is commonly used during the treatment of well-selected cases of paranasal sinus carcinoma, olfactory neuroblastoma, mucosal melanoma, soft tissue sarcoma and high-grade craniofacial osteosarcoma. Discussion: Alongside developments in surgery, there have also been improvements in diagnostics, radiotherapy, and chemotherapy. Implementation of novel radiation techniques allows delivery of higher radiation doses while minimizing irradiation-related morbidity. Better understanding of tumor biology allows the construction of more complex treatment strategies, incorporating adjuvant chemotherapy either pre- or postoperatively. In the era of personalized targeted therapy, rapid strides are being made to identify specific tumor-targets for use of novel biologic agents, with the potential to change current management paradigms.

• Rana, Mohammad Usman; Østhus, Arild Andre; Heimdal, Ketil Riddervold; Jebsen, Peter Wilhelm; Rootwelt-Revheim, Mona-Elisabeth & Osnes, Terje (2020). Head and neck paragangliomas in Norway, importance of genetics, updated diagnostic workup and treatment. Acta Oto-Laryngologica. ISSN 0001-6489. p. 1–7. doi: 10.1080/00016489.2020.1845397. Full text in Research Archive Show summary

  Background Head and neck paragangliomas (HNPG) are rare and predominantly benign tumours, originating from the neuroendocrine paraganglionic system. A considerable proportion of HNPGs are hereditary, depending on the population. Aims/objectives The purpose of this study was to estimate the rate of hereditary HNPGs in a Scandinavian (Norwegian) population, report long-term experience with HNPGs and offer all patients diagnosed an updated follow-up, with emphasis on identifying hereditary HNPGs through genetic screening and multifocality by 18 F-2-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT). Material and methods Our study was a partly retrospective and partly prospective cohort study. It included patients with HNPG diagnosed at Oslo University Hospital (OUH), Rikshospitalet between 1990 and 2017. The patients underwent genetic testing, 18F-FDG PET/CT and measurement of catecholamines and meta-nephrines in the plasma. All resection specimens and biopsies were subjected to histopathological review. The genetic testing protocol consisted of testing for mutations in the following genes; SDHD, SDHB, SDHC, VHL and RET. Results Sixty-three patients were included in the study with a median age of 49 years (range 12 − 80). Cranial nerve dysfunction was present upon diagnosis in 13%, and 14% had multifocal paraganglioma (PG) disease. Fifty-six patients (89% of all the patients) underwent genetic testing, and 29% of these had a PG related mutation. Seven of the eight patients (88%) with multifocal PGs who underwent genetic testing had a mutation. In two of the patients, the 18F-FDG PET/CT revealed unknown and subclinical multifocality. Conclusions and significance This is the first study with systematic genetic workup and PET/CT imaging in Scandinavia of HNPG patients. The mutation rate was within the lower range reported in the literature with respect to HNPGs. Combining genetic testing and PET/CT imaging in the diagnostic workup of HNPGs is valuable.

• Skalleberg, Jakob Rasmussen; Småstuen, Milada Cvancarova; Oldenburg, Jan; Osnes, Terje; Fosså, Sophie Dorothea & Bunne, Bodil Iris Marie (2020). The relationship between cisplatin-related and age-related hearing loss during an extended follow-up. The Laryngoscope. ISSN 0023-852X. 130(9), p. E515–E521. doi: 10.1002/lary.28543. Full text in Research Archive
• Hui, David; Johansen, Edvard; Akre, Harriet; Osnes, Terje & Dheyauldeen, Sinan (2020). Øre-nese-hals-leger og sars-CoV-2-viruset. Tidsskrift for Den norske legeforening (Tidsskriftet). ISSN 0029-2001. 140(10). doi: 10.4045/tidsskr.20.0423. Full text in Research Archive
• Lorntzsen, Bianca M.R.; Jacobsen, Anne-birgitte; Kotanska-Grøholt, Krystyna; Sigstad, Eva & Osnes, Terje Andreas (2020). Survival and Surgical Complications in Anaplastic Thyroid Cancer Patients After Completed Multimodal Treatment. Anticancer Research. ISSN 0250-7005. 40(12), p. 6979–6985. doi: 10.21873/anticanres.14722. Full text in Research Archive Show summary

  Background/Aim: This study aimed to examine survival and surgical complications in patients with anaplastic thyroid cancer (ATC) after multimodal treatment. Patients and Methods: Since 2002, the recommended treatment strategy for ATC at our centre has been hyperfractionated accelerated radiotherapy (HART) with high doses to the neck (64 Gy), combined with weekly doxorubicin, and surgery after 4-8 weeks, if feasible. Results: Between 2002 and 2014, 14 patients completed HART and thyroid surgery. Eight patients had preoperative HART, and six postoperative HART. Median survival was 20 months (range=4-110 months) in all patients, 51 months (range=4-110 months) and 18.5 months (range=9-56 months) in the preoperative and postoperative HART groups, respectively. Six patients survived for more than two years, and four patients survived for more than five years. Seven patients had postoperative complications. Conclusion: In this series of selected patients, an improved survival after aggressive, multimodal treatment was observed. Preoperative HART may promote survival although complications may be more frequent.

• König, Marton; Osnes, Terje; Bratland, Åse; Jebsen, Peter Wilhelm & Meling, Torstein Ragnar (2019). Treatment of sinonasal adenocarcinoma: A population-based prospective cohort study. Journal of Neurological Surgery. Part B: Skull Base: an interdisciplinary approach. ISSN 2193-6331. 61(8), p. 627–637. doi: 10.1055/s-0039-1694050. Full text in Research Archive Show summary

  Objectives Sinonasal adenocarcinoma (AC) is a potentially curable disease despite being an aggressive malignancy. Long-term survival can be achieved with early diagnosis and adequate multidisciplinary treatment. Our goal was to evaluate outcomes for patients with AC treated at our institution. Design In a population-based consecutive prospective cohort, we conducted an analysis of all patients treated for surface epithelial AC between 1995 and 2018. Results Twenty patients were included, and follow-up was 100%. The mean follow-up time was 89 months for the entire cohort (112 months for patients with no evidence of disease). Intestinal-type AC was found in 65%, whereas nonintestinal-type AC was found in 35% of all cases; 75% had stage T3/4 disease. Tumor grade was intermediate/high in 65%. Eighteen patients underwent treatment with curative intent (craniofacial resection [CFR] in 61%, transfacial approach in 39%, adjuvant radiotherapy in 89%), achieving negative margins in 56% of cases. Overall survival (OS) rates were 90, 68, and 54% after 2, 5, and 10 years of follow-up, respectively, and the corresponding disease-specific survival (DSS) rates were 90, 73, and 58%. Age over 60 years, tumor with a maxillary origin, and microscopic bone invasion were negative prognostic factors. Radical CFR was correlated with better OS and DSS. Conclusion The high probability of achieving radicality with CFR, the low complication rate, the acceptable toxicity of modern irradiation modalities, and the promising survival rates indicate that this strategy might be considered a safe and an effective option for treating patients with very advanced sinonasal AC.

• Steineger, Johan Edvard; Geirdal, Amy Østertun; Osnes, Terje; Heimdal, Ketil Riddervold & Dheyauldeen, Sinan (2019). Intranasal bevacizumab injections improve quality of life in HHT patients. The Laryngoscope. ISSN 0023-852X. p. 1–5. doi: 10.1002/lary.28179. Full text in Research Archive
• König, Marton; Osnes, Terje; Bratland, Åse & Meling, Torstein Ragnar (2019). Squamous Cell Carcinoma of the Paranasal Sinuses: A Single Center Experience. Journal of Neurological Surgery. Part B: Skull Base: an interdisciplinary approach. ISSN 2193-6331. 81(6), p. 664–672. doi: 10.1055/s-0039-1694967. Full text in Research Archive Show summary

  Objective Squamous cell carcinoma (SCC) of the paranasal sinuses is usually diagnosed at an advanced stage, making curative therapy difficult. The goal of this study was to evaluate the management and outcomes of patients with SCC treated at our institution. Methods In a population-based consecutive prospective cohort, we conducted an analysis of all patients treated for SCC between 1988 and 2017. Results A total of 72 patients were included, follow-up was 100%. Mean follow-up was 57 months for the entire cohort, and 108 months for patients with no evidence of disease. Eighty-two percent of all patients had high-stage (T4) disease. Fifty-seven patients underwent treatment with curative intent; consisting of surgery with or without oncologic treatment in 34, and of oncologic treatment only in 23 cases. Fifteen patients received palliative treatment. The rates of overall survival for the entire cohort were 55% at 2, 41% at 5, and 32% at 10 years, and corresponding disease-specific survival (DSS) rates were 55, 45, and 34%, respectively. DSS rates after surgical treatment with curative intent were 81% at 2, 65% at 5, and 54% at 10 years. Retromaxillary involvement and nonradical surgery were negative prognostic factors. Best survival was achieved with the combination of radical surgery and adjuvant oncologic treatment. Conclusion Surgical resection with a curative intent yielded 65% at 5-year DSS even in this cohort of patients with high-stage SCC and is still considered as the treatment of choice, preferably in combination with adjuvant radiation therapy and chemotherapy.

• König, Marton; Osnes, Terje; Jebsen, Peter Wilhelm & Meling, Torstein Ragnar (2018). Craniofacial resection of malignant tumors of the anterior skull base: a case series and a systematic review. Acta Neurochirurgica. ISSN 0001-6268. 160(12), p. 2339–2348. doi: 10.1007/s00701-018-3716-4. Full text in Research Archive Show summary

  Background: Craniofacial resection (CFR) is still considered as the gold standard for managing sinonasal malignancies of the anterior skull base (ASB), while endoscopic approaches are gaining credibility. The goal of this study was to evaluate outcomes of patients who underwent CFR at our institution and to compare our results to international literature. Method: Retrospective analysis of all patients undergoing CFR between 1995 and 2017, and systematic literature review according to the PRISMA statement. Results: 41 patients with sinonasal malignancy (81% with stage T4) of the ASB were included. There was no operative mortality. Complications were observed in 9 cases. We obtained 100% follow-up with mean observation 100 months. Disease-specific survival rates were 90%, 74% and 62% and recurrence-free survival was 85% at two, 72% at five and ten years follow-up, respectively. CFR as primary treatment, en bloc resection, and resection with negative margins correlated to better survival. Recursive partition analysis identified the latter as the most important prognostic factor, regardless surgical technique. The relative risk of non-radicality was significantly higher after piecemeal resection compared to en bloc resection. Compared to 15 original articles, totaling 2603 patients, eligible for review, the present study has the longest follow-up time, the second highest 5-year OS and the third highest 5-year DSS, despite having a higher proportion of patients with high-stage disease. Conclusion: CFR in true en bloc fashion can still be considered as the treatment of choice in cases of advanced-stage sinonasal malignancies invading the ASB.

• Steineger, Johan Edvard; Osnes, Terje; Heimdal, Ketil Riddervold & Dheyauldeen, Sinan (2018). Long-term experience with intranasal bevacizumab therapy. The Laryngoscope. ISSN 0023-852X. 128(10), p. 2237–2244. doi: 10.1002/lary.27147. Full text in Research Archive
• Steineger, Johan Edvard; Ueland, Thor; Aukrust, Pål; Michelsen, Annika; Osnes, Terje & Heimdal, Ketil Riddervold [Show all 7 contributors for this article] (2018). Pentraxin 3 level is elevated in hereditary hemorrhagic telangiectasia and reflects the severity of disease-associated epistaxis. The Laryngoscope. ISSN 0023-852X. 129(1), p. E44–E49. doi: 10.1002/lary.27548. Full text in Research Archive
• König, Marton; Osnes, Terje; Jebsen, Peter Wilhelm; Evensen, Jan Folkvard & Meling, Torstein Ragnar (2017). Olfactory neuroblastoma: a single-center experience. Neurosurgical review. ISSN 0344-5607. 41, p. 323–331. doi: 10.1007/s10143-017-0859-3. Full text in Research Archive
• Skalleberg, Jakob Rasmussen; Popova, Olesya; Fosså, Sophie Dorothea; Småstuen, Milada C; Osnes, Terje & Gundersen, Per Ole Mobråten [Show all 7 contributors for this article] (2017). Long-term ototoxicity in women after cisplatin treatment for ovarian germ cell cancer. Gynecologic Oncology. ISSN 0090-8258. 145(1), p. 148–153. doi: 10.1016/j.ygyno.2017.02.006. Full text in Research Archive
• Jacobsen, Anne-Birgitte; Kotanska-Grøholt, Krystyna; Lorntzsen, Bianca M.R.; Osnes, Terje; Falk, Ragnhild Sørum & Sigstad, Eva (2017). Anaplastic thyroid cancer and hyperfractionated accelerated radiotherapy (HART) with and without surgery. European Archives of Oto-Rhino-Laryngology. ISSN 0937-4477. 274(12), p. 4203–4209. doi: 10.1007/s00405-017-4764-8. Full text in Research Archive
• König, Marton Skog Steinberger; Osnes, Terje; Lobmaier, Ingvild Victoria Koren; Bjerkehagen, Bodil; Bruland, Øyvind & Hall, Kirsten Sundby [Show all 7 contributors for this article] (2016). Multimodal treatment of craniofacial osteosarcoma with high-grade histology. A single-center experience over 35 years. Neurosurgical review. ISSN 0344-5607. p. 1–12. doi: 10.1007/s10143-016-0802-z. Full text in Research Archive Show summary

  High-grade craniofacial osteosarcoma (CFOS) is an aggressive malignancy with a poor prognosis. Our goals were to evaluate treatment outcomes in those treated at a single referral institution over 35 years and to compare our results to the available literature. A retrospective analysis of all 42 patients treated between 1980 and 2015 at Oslo University Hospital, Norway, identified in a prospectively collected database, was conducted. Mean follow-up was 79.6 months. Overall survival at 2 and 5 years was 70.5 and 44.7%, respectively. The corresponding disease-specific survival rates were 73.0 and 49.8%. Treatment was surgery only in eight cases. Additional therapy was administered in 34 patients: chemotherapy in nine, radiotherapy in seven, and a combination of these in 18 cases. Stratified analysis by resection margins demonstrated significantly better survival at 2 and 5 years after radical surgical treatment. Neoadjuvant chemotherapy and subsequent adequate surgery resulted in better survival than surgery alone. Half of the patients either had a primary or familial cancer predisposition. This is the largest single-center study conducted on high-grade CFOS to date. Our experience indicates that neoadjuvant chemotherapy with complete surgical resection significantly improved survival, compared to surgery alone.

• Dale, Einar; Moan, Jon Magne; Osnes, Terje & Bogsrud, Trond (2016). Cervical lymph node metastases of squamous cell carcinoma of unknown origin: the diagnostic value of FDG PET/CT and clinical outcome. European Archives of Oto-Rhino-Laryngology. ISSN 0937-4477. 274(2), p. 1015–1019. doi: 10.1007/s00405-016-4318-5. Full text in Research Archive
• König, Marton Steinberger; Osnes, Terje & Meling, Torstein (2014). Treatment of esthesioneuroblastomas. Neuro-chirurgie. ISSN 0028-3770. 60(4), p. 151–157. doi: 10.1016/j.neuchi.2014.03.007. Full text in Research Archive
• Dollner, Ralph; Taraldsrud, Eli; Iversen, Kristin; Osnes, Terje; Kristensen, B. & Kramer, Matthias F. (2013). Non-allergic, mastocytosis-associated rhinitis. Clinical and Experimental Allergy. ISSN 0954-7894. 43(4), p. 406–412. doi: 10.1111/cea.12053. Full text in Research Archive
• Strøm-Roum, Henrik; Rødvik, Arne K; Osnes, Terje; Fagerland, Morten & Wie, Ona Bø (2012). Sound localising ability in children with bilateral sequential cochlear implants. International Journal of Pediatric Otorhinolaryngology. ISSN 0165-5876. 76(9), p. 1245–1248. doi: 10.1016/j.ijporl.2012.05.013. Full text in Research Archive
• Dheyauldeen, Sinan Ahmed Dheyauldeen; Geirdal, Amy Østertun; Osnes, Terje; Vartdal, Liv Sofie & Dollner, Ralph (2012). Bevacizumab in hereditary hemorrhagic telangiectasia-associated epistaxis: Effectiveness of an injection protocol based on the vascular anatomy of the nose. The Laryngoscope. ISSN 0023-852X. 122(6), p. 1210–1214. doi: 10.1002/lary.23303. Full text in Research Archive
• Wie, Ona Bø; Falkenberg, Eva-Signe; Tvete, Ole; Bunne, Marie & Osnes, Terje (2011). Cochleaimplantat til døve barn - hørsel- og talespråkutvikling. Spesialpedagogikk. ISSN 0332-8457. 76(5), p. 39–49. Full text in Research Archive Show summary

  Bruk av cochleaimplantat har gitt førspråklig døve barn økt mulighet til å høre og til å tilegne seg talespråk. I artikkelen presenteres resultater fra tre studier utført i tidsrommet 200-2010. Barnas hørsel, deres taleoppfattelse, talespråkutvikling og habiliteringssituasjon er undersøkt. En stor del (50%) av variasjonen i taleoppfattelse kunne forklares med variasjon i alder ved implantering, intelligens, daglig bruk, valg av opplæringssituasjon, språk og språkkommunikasjonsform. Blant barna som fikk tosidig simultan implantasjon fra 5 til 18 måneder, hadde henholdsvis 81% og 57% oppnådd aldersakdekvate reseptive og ekspressive talespråkferdigheter 12-48 måneder etter implantasjon. Andelen barn med aldersadekvate talespråkferdigheter økte med alder og implantatbrukstid.

• König, Marton; Due-Tønnessen, Bernt Johan; Osnes, Terje; Haugstvedt, Jan-Ragnar & Meling, Torstein (2010). Median facial cleft with a frontoethmoidal encephalocele treated with craniofacial bipartition and free radial forearm flap: a case report. Skull base surgery. ISSN 1052-1453. 20(2), p. 119–123. doi: 10.1055/s-0029-1238216. Full text in Research Archive
• König, Marton Skog Steinberger; Due-Tønnessen, Bernt Johan; Osnes, Terje; Haugstvedt, Jan-Ragnar & Meling, Torstein (2010). Median facial cleft with a frontoethmoidal encephalocele treated with craniofacial bipartition and free radial forearm flap. Journal of Neurological Surgery. Part B: Skull Base: an interdisciplinary approach. ISSN 2193-6331. 2(20), p. 119–123. doi: 10.1055/s-0029-1238216. Full text in Research Archive
• König, Marton; Mork, Jon; Hall, Kirsten Sundby; Osnes, Terje & Meling, Torstein (2010). Multimodal Treatment of Osteogenic Sarcoma of the Jaw. Skull base surgery. ISSN 1052-1453. 20(3), p. 207–212. doi: 10.1055/s-0029-1246221. Full text in Research Archive
• Osnes, Terje Andreas & Rollheim, Jan (2002). Effect of UPPP with respect to site of pharyngeal obstruction in sleep apnoea: follow-up at 18 months by overnight recording of airway pressure and flow. Clinical Otolaryngology. ISSN 1749-4478. 27, p. 38–43. Full text in Research Archive
• Sandstad, Olav.; Osnes, Terje Andreas; Urdal, Petter; Skar, V. & Osnes, Magne (2000). Brown pigment stones in the common bile duct: reduced bilirubinate diconjugate in bile. Scandinavian Journal of Gastroenterology. ISSN 0036-5521. 35(2), p. 198–203. Full text in Research Archive
• Sandstad, Olav.; Osnes, Terje Andreas; Skar, V.; Urdal, Petter & Osnes, Magne (2000). Structure and Composition of Common Bile Duct Stones in Relation to Duodenal Diverticula, Gastric Resection, Cholecystectomy and Infection. Digestion. ISSN 0012-2823. 61, p. 181–188. Full text in Research Archive
• Rollheim, Jan; Dingsør, B. & Osnes, Terje Andreas (2000). The distribution of hypopnoeic events in relation to apnoeic events in patients with sleep-induced upper airway narrowing. Clinical Otolaryngology. ISSN 1749-4478. 25, p. 361–362. Full text in Research Archive
• Rollheim, Jan; Miljeteig, Harald & Osnes, Terje Andreas (1999). Body mass index less than 28 kg/m2 is a predictor of subjective improvement after laser-assisted uvulopalatoplasty for snoring. The Laryngoscope. ISSN 0023-852X. 109(3), p. 411–414. Full text in Research Archive
• Rollheim, Jan; Osnes, Terje Andreas & Miljeteig, Harald (1999). The sites of obstruction in OSA, identified by continuous measurements of airway pressure and flow during sleep: mbulatory versus in hospital recordings. Clinical Otolaryngology. ISSN 1749-4478. 24, p. 502–506. Full text in Research Archive
• Osnes, Terje Andreas; Sandstad, Olav.; Skar, V. & Osnes, Magne (1997). beta,Glucuronidase in common duct bile, methodological aspects, variation of pH optima and relation to gallstones. Scandinavian Journal of Clinical and Laboratory Investigation. ISSN 0036-5513. 57 (4), p. 307–315. Full text in Research Archive
• Osnes, Terje Andreas; Sandstad, Olav.; Skar, V. & Osnes, Magne (1997). Lipopolysaccharides and Beta-Glucuronidase Activity in Choledochal Bile in Relation to Choledocholithiasis. Digestion. ISSN 0012-2823. 58 (5), p. 437–443. Full text in Research Archive

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• König, Marton; Osnes, Terje; Jebsen, Peter Wilhelm; Bratland, Åse & Meling, Torstein Ragnar (2018). Squamous cell carcinoma of the paranasal sinuses: a single center experience. Full text in Research Archive
• König, Marton; Osnes, Terje; Jebsen, Peter Wilhelm & Meling, Torstein Ragnar (2018). Craniofacial resection of malignant tumors of the anterior skull base. Full text in Research Archive
• König, Marton; Osnes, Terje; Jebsen, Peter Wilhelm; Evensen, Jan Folkvard & Meling, Torstein Ragnar (2018). Olfactory neuroblastoma: a single-center experience. Full text in Research Archive
• Meling, Torstein Ragnar; König, Marton; Jebsen, Peter Wilhelm; Evensen, Jan Folkvard & Osnes, Terje (2017). Olfactory neuroblastoma: a single-center experience. Full text in Research Archive
• König, Marton Skog Steinberger; Osnes, Terje; Lobmaier, Ingvild Victoria Koren; Bjerkehagen, Bodil; Bruland, Øyvind & Hall, Kirsten Sundby [Show all 7 contributors for this article] (2016). Craniofacial Osteosarcoma: A Single-Institution Experience. Full text in Research Archive
• König, Marton Skog Steinberger; Osnes, Terje; Lobmaier, Ingvild Victoria Koren; Bjerkehagen, Bodil; Bruland, Øyvind & Hall, Kirsten Sundby [Show all 7 contributors for this article] (2016). Treatment of Craniofacial Osteosarcoma: a Multidisciplinary Approach. Full text in Research Archive
• König, Marton; Osnes, Terje & Meling, Torstein R. (2012). Treatment of Esthesioneuroblastomas: a Single Institution Experience. Full text in Research Archive
• Strøm-Roum, Henrik; Rødvik, Arne K; Osnes, Terje & Wie, Ona Bø (2011). Optimal sound level- a comparison between children with CI and normal hearing children. Full text in Research Archive
• König, Marton; Mork, Jon; Hall, Kirsten Sundby; Osnes, Terje & Meling, Torstein R. (2009). Treatment of Osteogenic Sarcoma of the Jaw: a Case Report. Full text in Research Archive
• Meling, Torstein Ragnar; Kragerud, Beate & Osnes, Terje (2007). Craniofacial resection of sinonasal anterior skull base tumours. Full text in Research Archive
• Meling, T.R; Osnes, Terje Andreas & Kragerud, Beate (2007). Craniofacial Resection of Sinonasal Anterior Skull Base Tumors. Skull base. ISSN 1531-5010. 17, p. 107–107. Full text in Research Archive
• Osnes, Terje Andreas (2007). Everyday clinical use of US in oncological H&N Surgery. Full text in Research Archive
• Osnes, Terje Andreas (2007). Head and Neck multidicipilinary team. Full text in Research Archive
• Osnes, Terje Andreas (2007). Diagnostikk og behandling av lokalt invasiv cancer thyroidea. Full text in Research Archive
• Smørdal, Ole; Moen, Anne; Refseth, Yngve; Kristiansen, Tove; Mortensen, Berit Marie & Osnes, Terje Andreas (2004). Participatory design and infrastructures for coordination and communication in interdisciplinary mobile health teams. Full text in Research Archive
• Moen, Anne; Smørdal, Ole; Kristiansen, Tove; Refseth, Yngve; Mortensen, Berit Marie & Osnes, Terje Andreas (2004). Information Sharing in Interdisciplinary Mobile Health Teams. Full text in Research Archive
• Osnes, Terje Andreas; Aaløkken, Trond Mogens & Siem, Geir (2001). Atlantoaksial subluksasjon. Full text in Research Archive
• Rollheim, Jan; Osnes, Terje Andreas & Miljeteig, Harald (1999). Forholdet mellom obstruktiv søvn apnea og body mass index. Full text in Research Archive
• Rollheim, Jan; Miljeteig, Harald & Osnes, Terje Andreas (1999). Body mass index under 28 kg/m2 predikerer subjektiv bedring etter laser assistert uvulopalatoplastikk for snorking. Full text in Research Archive
• Osnes, Terje Andreas (1998). A study of common duct gallstone disease, with special reference to brown pigment calculi. Methodological aspects and studies of endoscopically obtained bile and calculi. Oslo universitetssykehus HF. Full text in Research Archive

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