Accuracy of CT Colonography for Detection of Polypoid and Nonpolypoid Neoplasia by Gastroenterologists and Radiologists: A Nationwide Multicenter Study in Japan.

Objectives: The objective of this study was to assess prospectively the diagnostic accuracy of computer-assisted computed tomographic colonography (CTC) in the detection of polypoid (pedunculated or sessile) and nonpolypoid neoplasms and compare the accuracy between gastroenterologists and radiologists.

Methods: This nationwide multicenter prospective controlled trial recruited 1,257 participants with average or high risk of colorectal cancer at 14 Japanese institutions. Participants had CTC and colonoscopy on the same day.

Effect of head position on the success rate of blind intubation using intubating supraglottic airway devices.

Background: To evaluate the effect of head position on the performance of intubating supraglottic airway devices, we compared the success rate of blind intubation in the head-elevated and the pillowless head positions with the LMA Fastrach and the air-Q, and the change of glottic visualization through the air-Q.

Methods: We assigned 193 patients to two groups according to the device used and subgrouped by head position used for intubation: Fastrach/pillowless, Fastrach/head-elevated, air-Q/pillowless, and air-Q/head-elevated. Blind intubation through the Fastrach or the air-Q was attempted up to twice after induction of general anesthesia.

[Airway Management Using McGrath MAC in a Pediatric Patient with a Laryngeal Saccular Cyst].

An 18-month-old female infant was scheduled for resection of a laryngeal saccular cyst inducing narrow airway. Since the cyst protruded from the left side of the epiglottis and the vocal cord was compressed to the right side, a difficult airway was anticipated. In addition, there was a risk of tracheal occlusion by rupture of the cyst Awake intubation was considered to be dangerous.

Effects of gas composition on the delivered tidal volume of the Avance Carestation.

Back Ground: Measurements with various flowmeters are affected by changes in gas mixture density. The Avance Carestation incorporates ventilator feedback controlled by a built-in flowmeter with a variable orifice sensor. We hypothesised that changes in the composition of delivered gas may cause changes in the delivered tidal volume by affecting the flow measurement unless appropriate corrections are made.

Comparison of intubation performance between the King Vision and Macintosh laryngoscopes in novice personnel: a randomized, crossover manikin study.

Purpose: The King Vision laryngoscope is a newly developed video laryngoscope. We conducted a simulation study to evaluate the efficacy of the King Vision in novice personnel.

Methods: Thirty-one registered nurses with no previous experience with tracheal intubation were enrolled.

[Usefulness of epidural anesthesia for percutaneous endoscopic lumbar discectomy (PELD)].

Background And Methods: To study feasibility of epidural anesthesia for percutaneous endoscopic lumbar discectomy (PELD), we made a retrospective comparison of three anesthetic groups (28 cases with epidural anesthesia, 19 cases with local anesthesia, and 28 cases with general anesthesia) undergoing PELD.

Results: Three groups matched each other in age, the surgical site, and the duration of surgery; however, the frequency of male patients was significantly greater in the local anesthesia (LA) group. In the epidural anesthesia (EA) group, there was no patient who required a change of the anesthetic technique or analgesics administration during surgery.

A Case of Benign Schwannoma of the Transverse Colon with Granulation Tissue.

Schwannomas occurring in the gastrointestinal tract are rare, and among them, schwannomas of the large intestine are extremely rare. In this paper, we report a case of a macroscopically atypical schwannoma of the transverse colon. The case is a female aged 67.

A new staging system for colorectal carcinoma with liver metastasis.

Purpose: The prognosis of colorectal carcinoma (CRC) with liver metastasis varies from case to case. A standardized classification system for evaluation of the prognosis and the treatment is needed. Therefore, we developed a new staging system for CRC with liver metastasis (HM-stage) based on the survival data.

Apoptotic lymphocytes induced by surgical trauma in dogs.

Purpose: An investigation was made of the population and function of lymphocytes in canine peripheral blood, in animals with or without laparotomy under inhalation anesthesia.

Methods: Fourteen healthy beagles were allocated to two experimental groups: laparotomy (group A) and without laparotomy (group B). Induction of anesthesia in both groups was carried out with an intravenous injection of thiopentone, and was maintained by isoflurane inhalation.

Effect of using self-etching primer for bonding orthodontic brackets.

Questions over the use of self-etching primers with composite resin adhesives in the bonding of orthodontic brackets remain unsolved. In addition, there are no previous reports on the efficacy of self-etching primers with resin-modified glass ionomer cements for bonding orthodontic brackets in orthodontic dentistry. The purpose of this study was to determine the shear bond strengths of orthodontic brackets bonded with one of four protocols: (1) a composite resin adhesive used with 40% phosphoric acid, (2) the same composite resin used with Megabond self-etching primer, (3) a resin-modified glass ionomer cement adhesive used with 10% polyacrylic acid enamel conditioner, and (4) the same resin-modified glass ionomer cement used with Megabond self-etching primer.