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Dive into the research topics where Oswald Varin is active.

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Featured researches published by Oswald Varin.


Archives of Surgery | 2009

Total vs partial fundoplication in the treatment of gastroesophageal reflux disease: a meta-analysis.

Oswald Varin; Berit Velstra; Stijn De Sutter; Wim Ceelen

OBJECTIVE To perform a meta-analysis of randomized trials comparing partial fundoplication (PF) with total (Nissen) fundoplication (TF) for gastroesophageal reflux disease in terms of morbidity, efficacy, and long-term symptomatology. DATA SOURCES A structured Medline search for published studies. STUDY SELECTION The available literature from 1975 until June 2007 was searched using the Medical Subject Headings of the National Library of Medicine term fundoplication and the free-text terms fundoplication, surgery, and reflux. Data were analyzed using Review Manager software (Cochrane Collaboration, Oxford, England). DATA EXTRACTION Eleven trials were identified comparing TF with PF in 991 patients. DATA SYNTHESIS Total fundoplication resulted in a significantly higher incidence of postoperative dysphagia (odds ratio [OR], 1.82-3.93; P < .001), bloating (OR, 1.07-2.56; P = .02), and flatulence (OR, 1.66-3.96; P < .001). No significant differences were noted in the incidence of esophagitis (OR, 0.72-2.7; P = .33), heartburn (OR, 0.48-1.52; P = .58), or persisting acid reflux (OR, 0.77-1.79; P = .45). The reoperation rate was significantly higher after TF compared with PF (OR, 1.13-3.95; P = .02). No significant differences were present in the proportion of patients experiencing a good or excellent long-term outcome (OR, 0.54-1.38; P = .53) or in the proportion of patients with a Visick I or II score (OR, 0.62-1.59; P = .99). CONCLUSIONS Partial fundoplication is a safe and effective alternative to TF, resulting in significantly fewer reoperations and a better functional outcome. The poor quality of the included trials warrants caution in the interpretation of the results of this meta-analysis.


International Journal of Radiation Oncology Biology Physics | 2012

Anastomotic complications after Ivor Lewis esophagectomy in patients treated with neoadjuvant chemoradiation are related to radiation dose to the gastric fundus.

Caroline Vande Walle; Wim Ceelen; Tom Boterberg; Dirk Van de Putte; Yves Van Nieuwenhove; Oswald Varin; Piet Pattyn

PURPOSE Neoadjuvant chemoradiation (CRT) is increasingly used in locally advanced esophageal cancer. Some studies have suggested that CRT results in increased surgical morbidity. We assessed the influence of CRT on anastomotic complications in a cohort of patients who underwent CRT followed by Ivor Lewis esophagectomy. PATIENTS AND METHODS Clinical and pathologic data were collected from all patients treated with neoadjuvant CRT (36 Gy combined with 5-fluorouracil and cisplatin) followed by Ivor Lewis esophagectomy. On the radiotherapy (RT) planning computed tomography scans, normal tissue volumes were drawn encompassing the proximal esophageal region and the gastric fundus. Within these volumes, dose-volume histograms were analyzed to generate the total dose to 50% of the volume (D(50)). We studied the ability of the D(50) to predict anastomotic complications (leakage, ischemia, or stenosis). Dose limits were derived using receiver operating characteristics analysis. RESULTS Fifty-four patients were available for analysis. RT resulted in either T or N downstaging in 51% of patients; complete pathologic response was achieved in 11%. In-hospital mortality was 5.4%, and major morbidity occurred in 36% of patients. Anastomotic complications (AC) developed in 7 patients (13%). No significant influence of the D(50) on the proximal esophagus was noted on the anastomotic complication rate. The median D(50) on the gastric fundus, however, was 33 Gy in patients with AC and 18 Gy in patients without AC (p = 0.024). Using receiver operating characteristics analysis, the D(50) limit on the gastric fundus was defined as 29 Gy. CONCLUSIONS In patients undergoing neoadjuvant CRT followed by Ivor Lewis esophagectomy, the incidence of AC is related to the RT dose on the gastric fundus but not to the dose received by the proximal esophagus. When planning preoperative RT, efforts should be made to limit the median dose on the gastric fundus to 29 Gy with a V(30) below 40%.


Acta Chirurgica Belgica | 2018

Long-term survival after multimodality therapy including surgery for metastatic esophageal cancer

Elke Van Daele; Vincenzo Scuderi; Eva Pape; Dirk Van de Putte; Oswald Varin; Yves Van Nieuwenhove; Wim Ceelen; Roberto Troisi; Piet Pattyn

Abstract Background and objectives: Esophageal cancer (EC) remains an aggressive disease with a poor survival. Management of metastatic EC is limited to palliative chemotherapy (CT). Scientific contributions regarding the role of surgery are scarce and controversial. We analysed outcome of surgically treated metastatic EC patients. Methods: We retrospectively identified surgically treated metastatic EC patients from our esophagectomy database. The aim of this study was to evaluate surgical complications, pathological response, oncological outcome and mean survival of these aggressively treated stage IV cancer patients. Results: Twelve stage IV patients with disease presentation limited to outfield lymph node (LN) and/or liver metastasis were treated with an aggressive multimodality treatment including surgery. Mean age was 58 years (75% male, 75% Adenocarcinomas). Median postoperative hospital stay was 15 d. Radiological anastomotic leakage occurred in one patient. In hospital, mortality was nil. Complete resection was achieved in all but one. Metastatic recurrence occurred in 64% of R0 resected patients. At date of censoring, after a median follow-up of 22 months, 50% of the surgical resected patients are still alive and 33% are free of disease recurrence. Kaplan–Meier curves show a possibility to long-term survival after aggressive multimodality therapy including surgery. Conclusions: In selected metastatic EC patients, multimodality treatment including surgery has an acceptable surgical outcome with a potentially long-term survival.


Acta Chirurgica Belgica | 2007

Cystic lesions in the liver: benign or malignant?

Oswald Varin; Dse Varin; Frederik Berrevoet

Abstract A 65-year old patient is presented with an ultrasound showing multiple cysts in liver and both kidneys. Computed tomography scan (CT-scan) showed a cyst in the right liver lobe with a largest diameter of 12 cm, suspicious for cystadenocarcinoma. Further staging showed no extrahepatic metastasis. Considering possible malignancy, aspiration of the cyst was not an option because of the risk for ent-metastasis. Resection of the tumour was considered as the best treatment. Peroperatively the cyst was localized with ultrasound, after which an extended right hepatectomy was performed. No peroperative complications occurred. Histological diagnosis was a cyst, originating in dilated von Meyenburg complexes. No signs of a biliary cystadenoma or malignant deformation were observed. A CT-scan 1 year postoperatively showed some other small cysts in the left liver lobe, the patient was free of any complaints. The differential diagnosis in cases of asymptomatic liver cysts will be discussed.


Archive | 2015

Total vs Partial Fundoplication in the Treatment of Gastroesophageal Reflux Disease

Oswald Varin; Berit Velstra; Stijn De Sutter; Wim Ceelen


Medicine | 2018

Assessment of graft perfusion and oxygenation for improved outcome in esophageal cancer surgery: Protocol for a single-center prospective observational study

Elke Van Daele; Yves Van Nieuwenhove; Wim Ceelen; Christiaan Vanhove; Bart P. Braeckman; Anne Hoorens; Jurgen Van Limmen; Oswald Varin; Dirk Van de Putte; Wouter Willaert; Piet Pattyn


Ejso | 2018

Radiologic and pathologic response to neoadjuvant chemotherapy predicts survival in patients undergoing the liver-first approach for synchronous colorectal liver metastases

Giammauro Berardi; Marc De Man; Stéphanie Laurent; Peter Smeets; Federico Tomassini; Riccardo Ariotti; Anne Hoorens; Jo Van Dorpe; Oswald Varin; Karen Geboes; Roberto Troisi


British Journal of Surgery | 2010

Prognostic significance of N stage, nodal harvest, and lymph node ratio in locally advanced esophageal cancer patients treated with neoadjuvant chemoradiation

Wim Ceelen; Clea Staelens; Leander Maes; Oswald Varin; Tom Boterberg; Yves Van Nieuwenhove; Dirk Van de Putte; Piet Pattyn


British Journal of Surgery | 2010

Influence of the radiation field on anastomotic complications after chemoradiation followed by surgery in esophageal carcinoma

Caroline Vande Walle; Wim Ceelen; Tom Boterberg; Karen Geboes; Stéphanie Laurent; Dirk Van de Putte; Yves Van Nieuwenhove; Oswald Varin; Piet Pattyn


Acta Gastro-enterologica Belgica | 2010

Anastomotic complications following Ivor Lewis esophagectomy in patients treated with neoadjuvant chemoradiation are related to radiation dose to the gastric fundus

Wim Ceelen; Caroline Vande Walle; Tom Boterberg; Karen Geboes; Stéphanie Laurent; Dirk Van de Putte; Yves Van Nieuwenhove; Oswald Varin; Piet Pattyn

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Wim Ceelen

Ghent University Hospital

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Piet Pattyn

Ghent University Hospital

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Tom Boterberg

Ghent University Hospital

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Karen Geboes

Ghent University Hospital

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Roberto Troisi

Ghent University Hospital

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