An automatic beam alignment system based on relative reference points for Thomson scattering diagnosis system.

An automatic beam alignment system based on relative reference points is developed for the Thomson scattering system on Keda Torus eXperiment. Two critical apertures around the vacuum vessel are designed to shield stray light, and a probe beam is required to go through the centers of these two apertures, which are the reference points for alignment. Since these two apertures are coated with light absorbing materials, three fibers with glowing tips are employed to indicate the centers of two apertures.

Laparoscopic vs open extended right hemicolectomy for colon cancer.

Aim: To evaluate the feasibility, safety, and oncologic outcomes of laparoscopic extended right hemicolectomy (LERH) for colon cancer.

Methods: Since its establishment in 2009, the Southern Chinese Laparoscopic Colorectal Surgical Study (SCLCSS) group has been dedicated to promoting patients' quality of life through minimally invasive surgery. The multicenter database was launched by combining existing datasets from members of the SCLCSS group.

Decision making for pancreatic resection in patients with intraductal papillary mucinous neoplasms.

Aim: To identify a practical approach for preoperative decision-making in patients with intraductal papillary mucinous neoplasms (IPMNs) of the pancreas.

Methods: Between March 1999 and November 2006, the clinical characteristics, pathological data and computed tomography/magnetic resonance imaging (CT/MRI) of 54 IPMNs cases were retrieved and analyzed. The relationships between the above data and decision-making for pancreatic resection were analyzed using SPSS 13.

Computed tomography manifestations of common inferior vena cava dysplasia and its clinical significance.

This study aimed to review and analyse the computed tomography (CT) imaging results of frequently encountered developmental anomalies of the inferior vena cava (IVC). The underlying clinical significance was evaluated with reference to the relevant literature. CT images of patients who received abdominal or thoracic scanning between July 2009 and September 2011 were reviewed.

[Laparoscopic anterior resection with doubling-stapling technique anastomosis for rectal cancer].

Double-stapling technique (DST) has brought a revolutionary change for rectal cancer surgery. It has overcome the shortcomings of manual intestinal anastomosis operational difficulties caused by the narrow space of pelvic surgery, shortened the operation time, improved anal sphincter preservation rate, and reduced the risk of anastomotic leakage. The author gives a comprehensive and detail description of laparoscopic DST based on his ten years experience of laparoscopic colorectal resection for colorectal cancer.

Predictive value of serum carbohydrate antigen 19-9 in malignant intraductal papillary mucinous neoplasms.

Background: The goal of the present study was to evaluate the predictive value of serum carbohydrate antigen 19-9 (CA 19-9) in the diagnosis of malignant intraductal papillary mucinous neoplasms of pancreas (IPMNs).

Methods: Eighty-six patients with pathological diagnosis of IPMNs in Zhongshan Hospital between March 1999 and November 2008 were retrospectively reviewed. Data reflecting clinical characteristics, tumor marker level, and prognosis were collected.

[Electroacupuncture at Zhongji (CV 3) for treatment of benign hyperplasia of prostate: a multi-central randomized controlled study].

Objective: To assess the role of Zhongji (CV 3) in treatment of benign hyperplasia of prostate.

Methods: Multi-central, randomized, controlled, single bland clinical method was adopted, and 276 cases were divided into an electroacupuncture (EA) group and a medication group, 138 cases in each group. The EA group were treated with EA at Zhongji (CV 3) and the medication group with oral administration of Qianliekang tablets.

[Comparative study of colostomy in the laparoscopic-assisted abdominoperineal resection].

Objective: To compare two different procedures of colostomy in the laparoscopic- assisted abdominoperineal resection(LAPR), and to reduce the related complications of colostomy.

Methods: Sixty- three cases with anorectal cancer undergone LAPR from June 2001 to December 2005 were registered and followed up. Circular stapler anastomosis with sigmoid colon and abdominal skin were applied on 61 cases of the colostomy, and 2 cases were hand sutured.

[Total mesorectal excision versus conventional radical surgery for rectal cancer: a meta analysis].

Objective: To compare treatment outcomes of total mesorectal excision (TME) with those of conventional radical surgery (CRS) for rectal cancer.

Methods: Literature reviews were performed with key words, such as rectal cancer, total mesorectal excision, TME on all studies reported on TME versus CRS for rectal cancer between January 1986 to May 2006. According to the same screening criteria, 17 clinical studies were included in our systematic reviews.