Perfusion Instability During Hyperthermic Intraperitoneal Chemotherapy: The Utility of a Problem-solving Flowchart.

Background/aim: During hyperthermic intra-peritoneal chemotherapy (HIPEC), perfusion instability (PI) is defined as the inability to maintain a proper perfusion flow without impairment of the target temperature. The management and resolution of this adverse event is underreported and poorly investigated. The study aimed to evaluate the incidence of PI during closed cytoreductive surgery (CRS)-HIPEC and how a problem-solving approach might limit the effects of this adverse event.

Nutritional Prehabilitation in Patients Undergoing Cystectomy: A Systematic Review.

Background/aim: Nutrition is a key element of the prehabilitation process prior to surgery. The aim of this study was to identify the clinical pathways of nutritional prehabilitation before cystectomy.

Methods: A systematic literature review was conducted in PubMed, the Cochrane Library, CINAHL, Scopus and the Web of Science databases.

Geometric morphometric variability in the supraorbital and orbital region of Middle Pleistocene hominins: Implications for the taxonomy and evolution of later Homo.

This study assessed variation in the supraorbital and orbital region of the Middle Pleistocene hominins (MPHs), sometimes called Homo heidelbergensis s.l., to test whether it matched the expectations of intraspecific variation.

The evolution of mammalian brain size.

Relative brain size has long been considered a reflection of cognitive capacities and has played a fundamental role in developing core theories in the life sciences. Yet, the notion that relative brain size validly represents selection on brain size relies on the untested assumptions that brain-body allometry is restrained to a stable scaling relationship across species and that any deviation from this slope is due to selection on brain size. Using the largest fossil and extant dataset yet assembled, we find that shifts in allometric slope underpin major transitions in mammalian evolution and are often primarily characterized by marked changes in body size.

Taxonomic variation in the supraorbital region of catarrhine primates.

Objectives: This study aimed to test the taxonomic utility of the catarrhine supraorbital region using 3D geometric morphometrics, with the aim of establishing its potential use in elucidating the position of more debated hominin groups.

Materials And Methods: 230 3D coordinates were used to record the supraorbital morphology of two datasets: one containing 460 non-hominin catarrhine primates from species and subspecies of Gorilla, Pan, Papio, and Macaca; and the other containing 55 Pleistocene hominins from Homo, Australopithecus, and Paranthropus. Principal component analyses in tangent, form, and allometry-free shape space were used to assess differentiation of taxa, with biological distinctiveness of taxa being established using step-wise discriminant analysis with subsampling.