Pneumocephalus and headache following craniotomy during the immediate postoperative period.

Background: Pneumocephalus may be responsible for post-craniotomy headache but is easily overlooked in the clinical situation. In the present study, the relationship between the amount of intracranial air and post-craniotomy headache was investigated.

Methods: A retrospective observational study was performed on 79 patients who underwent minimal invasive craniotomy for unruptured cerebral aneurysms.

Risk factors of emergency reoperations.

Background: Emergency reoperation is considered to be a quality indicator in surgery. We analyzed the risk factors for emergency reoperations.

Methods: Patients who underwent emergency operations from January 1, 2017, to December 31, 2017, at our hospital were reviewed in this retrospective study.

Prevalence of common causes of neuropathic pain in Korea: population-based observational study.

Objective: To investigate the prevalence of complex regional pain syndrome (CRPS), post-herpetic neuralgia (PHN), trigeminal neuralgia (TN), and diabetic neuropathy (DN), common causes of neuropathic pain encountered in pain clinics.

Methods: We investigated the period prevalence rate of CRPS, PHN, TN, and DN using data from a Korean national electronic database from 2009 to 2013.

Results: The prevalence of CRPS decreased slightly throughout the study period, while the prevalence of PHN increased from 2009 to 2013.

The effect of thioctic acid on allodynia in a rat vincristine-induced neuropathy model.

Objective: To investigate the antiallodynic effects of thioctic acid in vincristine-induced neuropathy in rats.

Methods: Neuropathy was induced in Sprague-Dawley rats via vincristine intraperitoneal injection. After 15 days, rats were investigated for the presence of mechanical and cold allodynia, and those with allodynia received intraperitoneal injection with normal saline or 1, 5, or 10 mg/kg thioctic acid.

Giant cell tumor with secondary aneurysmal bone cyst: a unique presentation with an ossified extraosseous soft tissue mass.

The authors describe a case of giant cell tumor (GCT) with secondary aneurysmal bone cyst (ABC) in a 44-year-old man with chronic, intermittent knee pain. A unique feature is the presentation of GCT with an ossified extraosseous soft tissue mass. Radiograph demonstrates a multiloculated lytic lesion in the distal meta-epiphyseal region of the femur with an adjacent extraosseous soft tissue mass.

Comparative Study of Brain Protection Effect between Thiopental and Etomidate Using Bispectral Index during Temporary Arterial Occlusion.

Objective: This study was conducted to compare the effect of etomidate with that of thiopental on brain protection during temporary vessel occlusion, which was measured by burst suppression rate (BSR) with the Bispectral Index (BIS) monitor.

Methods: Temporary parent artery occlusion was performed in forty one patients during cerebral aneurysm surgery. They were randomly assigned to one of two groups.

Thiopental-induced burst suppression measured by the bispectral index is extended during propofol administration compared with sevoflurane.

Background: Thiopental is used to suppress cerebral metabolism during temporary clip ligation of the cerebral arteries. Electroencephalogram (EEG) can measure intraoperative burst suppression as evidence of cerebral metabolic suppression, but EEG is not always available during clip ligation. This study was conducted to compare the effect of propofol-based total intravenous anesthesia (TIVA) with sevoflurane-based inhalational anesthesia on thiopental-induced burst suppression during aneurysm surgery.

Temperature dependence of bis(triisopropylsilylethynyl)-pentacene nanofilm deposited on octadecyltrichlorosilane self assembled monolayer surface as a transistor channel.

Highly pure 6,13-bis(triisopropylsilylethynyl)pentacene (TIPS-PEN) nanofilms were deposited on a hydrophobic OTS-SAM surface at two different substrate temperatures (70 degrees C and 90 degrees C) via the vacuum thermal evaporation (VTE) method. X-ray reflectivity measurements over a wide temperature range (30 degrees C-284 degrees C) revealed that out-of-plane crystallinity of the film (approximately 10 nm) remains intact but in-plane crystallinity starts to become poor from approximately 100 degrees C, and to become much more worse from 260 degrees C. Atomic force microscope images showed that TIPS-PEN films (approximately 55 nm) prepared at the substrate temperature of 90 degrees C or above commonly have a number of huge cracks between enormous crystal domains (up to 3 microm) whereas the films didn't form such morphology below T(s) = 90 degrees C.

Anesthetic experience of a patient with hereditary factor XI deficiency (Hemophilia C) : A case report.

Factor XI deficiency (also called Hemophilia C) rarely occurs among ethnicities other than Ashkenazi Jews. A boy was scheduled for frontoethmoidectomy due to bilateral chronic rhinosinusitis. He was incidentally found to have factor XI deficiency due to prolonged aPTT on preoperative laboratory finding.

The effects of Ginkgo biloba extract EGb 761 on mechanical and cold allodynia in a rat model of neuropathic pain.

Background: Neuropathic pain is chronic pain that is caused by an injury to the peripheral or central nervous system. The symptoms of neuropathic pain are continuing pain, hyperalgesia, and allodynia. Ginkgo biloba extract is an oriental herbal medicine that has various pharmacological actions.