Evaluation of variation in the phosphoinositide-3-kinase catalytic subunit alpha oncogene and breast cancer risk.

BACKGROUND: Somatic mutations in phosphoinositide-3-kinase catalytic subunit alpha (PIK3CA) are frequent in breast tumours and have been associated with oestrogen receptor (ER) expression, human epidermal growth factor receptor-2 overexpression, lymph node metastasis and poor survival. The goal of this study was to evaluate the association between inherited variation in this oncogene and risk of breast cancer. METHODS: A single-nucleotide polymorphism from the PIK3CA locus that was associated with breast cancer in a study of Caucasian breast cancer cases and controls from the Mayo Clinic (MCBCS) was genotyped in 5436 cases and 5280 controls from the Cancer Genetic Markers of Susceptibility (CGEMS) study and in 30 949 cases and 29 788 controls from the Breast Cancer Association Consortium (BCAC). RESULTS: Rs1607237 was significantly associated with a decreased risk of breast cancer in MCBCS, CGEMS and all studies of white Europeans combined (odds ratio (OR)=0.97, 95% confidence interval (CI) 0.95-0.99, P=4.6 × 10(-3)), but did not reach significance in the BCAC replication study alone (OR=0.98, 95% CI 0.96-1.01, P=0.139). CONCLUSION: Common germline variation in PIK3CA does not have a strong influence on the risk of breast cancer.

[Compliance with the surgical safety checklist and surgical events detected by the Global Trigger Tool]. / Cumplimiento del listado de verificación quirúrgica y los eventos quirúrgicos detectados mediante la herramienta del Global Trigger Tool.

INTRODUCTION: The implementing of the WHO Surgical Safety Checklist (SSC) has helped to improve patient safety. The aim of this study was to assess the level of compliance of the SSC, and incorporating the non-compliances as «triggers¼ in the Global Trigger Tool (GTT). SETTING: Acute Geriatric Hospital (200 beds). Retrospective study, study period: 2011-2014. The SSC formulary and the methodology of the GTT were used for the analysis of electronic medical records and the compliance with the SSC. The NCCP MERP categories were used to assess the severity of the harm. RESULTS: Out of all the electronic medical records (EMR), a total of 227 (23.6%) discharged patients (1.7% of interventions in the four year study period) were analysed. All (100%) of the EMR included the SSC, with 94.4% of the items being completed, and 28.2% of SSC had all items completed in the 3 phases of the process. Surgical adverse events decreased from 16.3% in 2011 to 9.4% in 2014 (P=.2838, not significant), and compliance with all items of SSC was increased from 18.6% to 39.1% (P=.0246, significant). CONCLUSIONS: The GTT systematises and evaluates, at low cost, the triggers and incidents/ AEs found in the EMR in order to assess the compliance with the SSC and consider non-compliance of SSC as «triggers¼ for further analysis. This strategy has never been referred to in the GTT or in the SCC formulary.

[Mesenteric fibromatosis]. / Fibromatosis mesentérica.

We report a patient with mesenteric fibromatosis, a rare entity in our environment resulting in rectal stenosis which required resection and a Hartman operation. The features of this disease are reviewed.

[Biliary ascaridiasis]. / Ascaridiasis biliar.

A case of biliary ascaridiasis is presented in which biliary obstruction and pancreatitis were diagnosed. Recovery followed surgical removal of the worms. The literature is reviewed.