Association between ABO blood groups and preeclampsia.

Objective: To determine the association between the ABO blood group and preeclampsia.

Methods: This is a case-control study that included patients with ( = 253) and without ( = 457) preeclampsia/eclampsia in Northeastern Mexico. Data were obtained from electronic medical records.

Genomic analysis of virulence factors and antimicrobial resistance of group B Streptococcus isolated from pregnant women in northeastern Mexico.

Introduction: Group B Streptococcus (GBS) causes infections in women during pregnancy and puerperium and invasive infections in newborns. The genes lmb, cylE, scpB, and hvgA are involved with increased virulence of GBS, and hypervirulent clones have been identified in different regions. In addition, increasing resistance of GBS to macrolides and lincosamides has been reported, so knowing the patterns of antibiotic resistance may be necessary to prevent and treat GBS infections.

Factors Associated with Urethral and Bladder Neck Stricture After Transurethral Resection of the Prostate.

Urethral and bladder neck stricture (U/BNS) is a complication that occurs in up to 9% of patients following transurethral resection of the prostate (TURP). The most relevant risk factors reported are prolonged surgical duration and prostatic volume. The purpose of this study is to analyze risk factors associated with the development of U/BNS following TURP.

INTER- AND INTRA-OBSERVER AGREEMENT IN THE MILCH AND WEISS SYSTEMS.

Objective: The aim of this study is to estimate the inter- and intra-observer agreement of the Weiss and Milch classification systems in radiological studies of fractures of the lateral humeral condyle in pediatric patients.

Methods: An agreement study was performed with non-probability sampling of consecutive cases with a sample size of a hundred radiological studies, which were evaluated by three experienced orthopedic surgeons and three resident physicians; following a thorough comparison of both inter- and intra-observer agreements over a six-week period based on the Fleiss' kappa, which was used to determine the inter- and intra-observer agreement rates of both classifications.

Results: The overall reliability of the entire group of evaluators for the Milch classification in the inter-observer evaluation was κ = 0.

Síndrome metabólico y otros factores asociados a gonartrosis.

Objective: To evaluate whether an association exists between gonarthrosis and metabolic syndrome X (MS) as well as other potential risk factors.

Method: Comparative cross-sectional study of 310 patients evaluated by pathology of knee grouped in patients with gonarthrosis and without it. Sociodemographic, anthropometric and laboratory data was obtained.

[Diagnostic accuracy of malignancy risk index II in post-menopausal women with adnexal tumours].

Background: The purpose of the diagnostic evaluation of adnexal tumours is to exclude the possibility of malignancy. The malignancy risk index II identifies patients at high risk for ovarian cancer. The cut-off value is greater than 200.

[Epidemiologic profile of very low birth weight infants treated with red blood cell transfusions].

Introduction: during the neonatal period seventy to ninety percent of very low birth weight (VLBW) infants (birth weight < 1500 g), are transfused with red blood cells (RBC) at least once; that represents infectious, biochemical, immunologic and oxidative risks. The objective of this paper is to describe the epidemiological profile of the VLBW infants that are transfused with RBC.

Methodology: a retrospective review of 61 VLBW newborns admitted to the Neonatology Unit of a tertiary care hospital in Monterrey, México was conducted.