The British journal of surgery
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Randomized Controlled Trial
Effect of passive polarizing three-dimensional displays on surgical performance for experienced laparoscopic surgeons.
Although the potential benefits of stereoscopic laparoscopy have been recognized for years, the technology has not been adopted because of poor operator tolerance. Passive polarizing projection systems, which have revolutionized three-dimensional (3D) cinema, are now being trialled in surgery. This study was designed to see whether this technology resulted in significant performance benefits for skilled laparoscopists. ⋯ Passive polarizing 3D displays improved both the performance of experienced surgeons in a simulated setting and surgeon perception of the operative field. Although it has been argued that the experience of skilled laparoscopic surgeons compensates fully for the loss of stereopsis, this study indicates that this is not the case. Surgical relevance The potential benefits of stereoscopic laparoscopy have been known for years, but the technology has not been adopted because of poor operator tolerance. The first laparoscopic operation was carried out using a prototype passive polarizing laparoscopic system in 2010. This is new three-dimensional (3D) technology offers a real option for 3D laparoscopic surgery where previous systems have failed. This study is the first to have been carried out using this technology. It is essential that new technologies are adopted only when there is robust evidence to support their use. Currently, there are concerns about the use of robotic technologies and whether advantages exist for patient care. If there are advantages, 3D must be playing a significant role. If so, perhaps the technology under investigation here offers potential to a greater spectrum of surgeons, as well as being a more affordable option.
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Comparative Study
Effect of hospital volume on quality of care and outcome after rectal cancer surgery.
Research on the relationship between hospital volume and quality of care in the treatment of rectal cancer is limited. ⋯ Some volume effects were observed, but their effect size was limited.
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Five-year survival after hepatic resection for colorectal cancer (CRC) liver metastases is good, but data on patient-reported outcomes are lacking. This study describes the long-term impact of liver surgery for CRC metastases on patient-reported outcomes. ⋯ Long-term survivors of metastatic colorectal cancer who have undergone liver surgery have excellent global quality of life, high levels of function and few symptoms.
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Review Meta Analysis Comparative Study
Meta-analysis of peak wall stress in ruptured, symptomatic and intact abdominal aortic aneurysms.
Abdominal aortic aneurysm (AAA) is an important cause of sudden death; however, there are currently incomplete means to predict the risk of AAA rupture. AAA peak wall stress (PWS) can be estimated using finite element analysis (FEA) methods from computed tomography (CT) scans. The question is whether AAA PWS can predict AAA rupture. The aim of this systematic review was to compare PWS in patients with ruptured and intact AAA. ⋯ This study suggests that PWS is greater in symptomatic or ruptured AAA than in asymptomatic intact AAA.