Robotic Colorectal Surgery.

The role of robotics in colon and rectal surgery has been established as an important and effective tool for the surgeon. Its inherent technologies have provided for increased visualization and ease of dissection in the minimally invasive approach to surgery. The value of the robot is apparent in the more challenging aspects of colon and rectal procedures, including the intracorporeal anastomosis for right colectomies and the low pelvic dissection for benign and malignant diseases.

Perianal pyoderma gangrenosum after excision and fulguration of anal condyloma acuminatum.

Introduction: Pyoderma gangrenosum (PG) is a rare, inflammatory skin pathology frequently associated with systemic inflammatory disease. While rare after surgery, recognition of this disease in the post-surgical setting is important as it can mimic wound infection.

Presentation Of Case: We herein present a dramatic presentation of perianal PG four days after routine excision and fulguration of anal condyloma acuminatum.

Strategies to evaluate synchronous carcinomas of the colon and rectum in patients that present for emergent surgery.

It is not always possible to evaluate patients that present acutely with carcinoma of the colon and rectum for synchronous lesions. Patients that require emergent surgery necessitate urgent and efficient operation. Patients with lower gastrointestinal bleeding, perforation, or obstruction represent a challenging subset of patients with colorectal cancer.

Long-term multicentre randomised controlled study of high frequency chest wall oscillation versus positive expiratory pressure mask in cystic fibrosis.

Background: Positive expiratory pressure (PEP) is the most commonly used method of airway clearance (AC) in Canada for patients with cystic fibrosis (CF) whereas, in some countries, high frequency chest wall oscillation (HFCWO) is the preferred form of AC. There have been no long-term studies comparing the efficacy of HFCWO and PEP in the CF population.

Objectives: To determine the long-term efficacy of HFCWO compared with PEP mask therapy in the treatment of CF as measured by the number of pulmonary exacerbations (PEs).

Pseudomonas syringae type III effector AvrRpt2 alters Arabidopsis thaliana auxin physiology.

The Pseudomonas syringae type III effector AvrRpt2 promotes bacterial virulence on Arabidopsis thaliana plants lacking a functional RPS2 gene (rps2 mutant plants). To investigate the mechanisms underlying the virulence activity of AvrRpt2, we examined the phenotypes of transgenic A. thaliana rps2 seedlings constitutively expressing AvrRpt2.