We present a case of gastric varices successfully treated with modified plug-assisted retrograde transvenous obliteration. A 45-year-old male patient had isolated fundal caused by alcoholic cirrhosis. Contrast-enhanced computed tomography showed that the were drained mainly via gastro-renal shunt. The obliteration using an IMPEDE vascular plug coil-assisted obliteration-II procedure. There no c...

AIM To review the literature on pulp chamber and root canal obliteration in anterior teeth and to establish a clear protocol for managing teeth with fine, tortuous canal systems. SUMMARY Pulp canal obliteration (PCO) occurs commonly following traumatic injuries to teeth. Approximately 4-24% of traumatized teeth develop varying degrees of pulpal obliteration that is characterized by the appare...

BACKGROUND AND PURPOSE Stereotactic radiosurgery (SRS) is a safe and effective treatment for small arteriovenous malformations (AVMs), the use of this modality for the treatment of large AVMs is still controversial, although it has been used in difficult cases. The aim of this study was to evaluate the treatment outcomes of patients who underwent single-stage SRS for large AVMs and to discuss t...

OBJECTIVES Patients who fail endoscopic drainage procedures for chronic frontal sinusitis often require obliteration of the frontal sinus with abdominal fat. The purpose of this study was to evaluate an endoscopic technique for frontal sinus obliteration. STUDY DESIGN AND SETTING Retrospective case-control. Thirty-five patients underwent frontal sinus obliteration using either an endoscopic (...

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...

OBJECT The appropriate management of unruptured intracranial arteriovenous malformations (AVMs) remains controversial. In the present study, the authors evaluate the radiographic and clinical outcomes of radiosurgery for a large cohort of patients with unruptured AVMs. METHODS From a prospective database of 1204 cases of AVMs involving patients treated with radiosurgery at their institution, ...

BACKGROUND Treatment options for dural arteriovenous fistulas (DAVFs) have expanded with the application of stereotactic radiosurgery (SRS). OBJECTIVE To assess the role of SRS with or without embolization, we reviewed our entire DAVF experience. METHODS Between 1991 and 2006, 40 patients with 44 DAVFs underwent Gamma knife SRS. Twenty-eight patients had upfront SRS before or after emboliza...

OBJECTIVE To investigate the time-dependent obliteration of cerebral arteriovenous malformations (cAVM) after CyberKnife radiosurgery (CKRS) (Accuray, Inc., Sunnyvale, CA) by means of sequential 3-T, 3-dimensional (3D), time-of-flight (TOF) magnetic resonance angiography (MRA), and volumetry of the arteriovenous malformation (AVM) nidus. METHODS In this prospective study, 3D TOF MRA was perfo...

OBJECTIVE Brainstem arteriovenous malformation (AVM) is rare and radiosurgical management is complicated by the sensitivity of the adjacent neurological structures. Complete obliteration of the nidus is not always possible. We describe over 20 years of radiosurgical procedures for brainstem AVMs, focusing on clinical outcomes and radiosurgical techniques. METHODS Between 1992 and 2011, the au...