BACKGROUND The effect on cell viability of smoke produced during high-frequency electro-surgery has not been previously reported. The aim of this study was to produce smoke in vitro, in a closed environment similar to that encountered in minimal access surgery, and to test its cytotoxic effects on cultured cells. METHODS Pig liver was cut repeatedly with an electro-surgical hook knife, and th...

submucosal dissection (ESD) is a minimally invasive treatment and enables en bloc resection of large le-sions. However, ESD is a technically demanding and time-consuming procedure. 1 Here, we report a " two-sword fencing " technique with an injection needle and an ESD knife. A 74-year-old man presented with a laterally spreading tumor (LST), 7 cm in diameter, on the right wall of the rectum, an...

BACKGROUND The initial aim was to determine the rate of pathologic tissue damage when dissecting the rat sciatic nerve with either bipolar forceps or low-temperature tripolar plasma knife. The second aim was to determine the safety and effectiveness of the plasma knife during parotid surgery. METHODS A prospective, randomized, single-blind study was performed on 40 rat sciatic nerves dissecte...

OBJECTIVE To report the first case of using the insulation-tipped diathermic knife 2 (IT knife-2) for the treatment of postintubation tracheal stenosis. CLINICAL PRESENTATION AND INTERVENTION A 71-year-old female patient with a history of endotracheal intubation 3 years earlier presented with throat discomfort, gross wheezing and dyspnea. Chest imaging and bronchoscopy demonstrated a strand-l...

AIM Giant arteriovenous malformations (i.e., those greater than 6 cm maximum diameter or volume > 33 cc) are difficult to treat and often carry higher treatment morbidity and mortality rates. In our study, we reviewed the angiographic results and clinical outcomes for 11 patients with giant arteriovenous malformations who were treated between 1994 and 2012. MATERIAL AND METHODS The patients s...

Tympanojugular paragangliomas are benign and slow growing lesions of the lateral skull base. Due to their localization and vascularity, they represent a surgical challenge. Treatment modalities include preoperative embolization of feeding vessels and tumour itself, surgical removal and irradiation. In our group, 16 patients with large tympanojugular paragangliomas have been operated in the peri...

Treatment options for trigeminal neuralgia (TN) must be customized for the individual patient, and physicians must be aware of the medical, surgical, and radiation treatment modalities to prescribe optimal treatment courses for specific patients. The following case illustrates the potential for gamma knife radiosurgery (GKRS) to be repeated multiple times for the purpose of achieving facial pai...

<p class="abstract">Tonsillectomy the “bread and butter” surgery of Otorhinolaryngologist has graduated from Gullitone to state art plasma knife technique, vis a patient surgeon comfort. The excruciating post recovery pain is due breach in oro-phayngeal mucosa thereby irritation terminal arborizations glossopharyngeal vagal innervations. Moreover, surgical trauma induced inflammation spas...

purpose: to study early treatment outcomes and complications of gamma knife radiosurgery (gkrs) in patients with functional and nonfunctional adenomas. methods: one hundred patients with a pituitary adenoma who were treated between 2011 and 2014 at iran gamma knife center were studied. the patients were followed up at least 2 years. radiosurgery was performed using the leksell gamma unit. the m...

Endoscopic submucosal dissection tech− niques using an insulated−tip knife (IT knife) were introduced several years ago to allow en−bloc resection of early gastric cancers, since histological evaluations are essential in order to assess the risk of lymph−node metastasis [1, 2]. However, the technique requires special skills and involves a prolonged procedural time. We have therefore developed a...