Dead space volumes in cats and dogs with small body mass ventilated with a fixed tidal volume.

Objective: To compare the portion of tidal volume (V) ventilating dead space volumes in nonbrachycephalic cats and dogs with small body mass receiving volume-controlled ventilation (VCV) with a fixed V.

Study Design: Prospective, experimental study.

Animals: A group of eight healthy adult cats and dogs [ideal body weight (IBW): 3.

Anatomy of the brain of capybara (Hydrochoerus hydrochaeris) using magnetic resonance imaging.

Capybara is considered the largest living rodent and is widespread distributed in the South America and in the Brazilian territory. The purpose of this study was to provide the anatomical description of the brain in the capybara (Hydrochoerus hydrochaeris) using magnetic resonance imaging (MRI). Brains of ten normal capybaras were imaged and sectioned in the anatomical studies.

Exploring the use of preprints in dentistry.

Objective: This study aims to assess the use, impact, and dissemination of preprints in dentistry.

Methods: This is a meta-research study with a cross-sectional design. We included preprints published in dentistry, regardless of the year of publication.

EVALUATION OF A LARYNGEAL MASK AIRWAY AS AN ALTERNATIVE TO OROTRACHEAL INTUBATION FOR MAINTAINING AIRWAY PATENCY DURING INHALANT ANESTHESIA UNDER SPONTANEOUS VENTILATION IN CAPYBARAS ().

Orotracheal intubation carries greater difficulty in rodents than in most domestic species. The human laryngeal mask airway (LMA) was compared with an endotracheal tube (ET) for maintaining airway patency in anesthetized capybaras (). Six capybaras (24-52 kg) were remotely darted with intramuscular ketamine, midazolam, and acepromazine on two occasions (≥7-day intervals).

Comparison of the diagnostic accuracy of dynamic and static preload indexes to predict fluid responsiveness in mechanically ventilated, isoflurane anesthetized dogs.

Objective: To compare the diagnostic accuracy of pulse pressure variation (PPV), stroke volume variation from pulse contour analysis (SVV), plethysmographic variability index (PVI), central venous pressure (CVP) and global end-diastolic volume index measured by transpulmonary thermodilution (GEDVI) to predict fluid responsiveness (FR) in dogs.

Study Design: Prospective study.

Animals: A group of 40 bitches (13.

Effects of 6% tetrastarch or lactated Ringer's solution on blood coagulation in hemorrhaged dogs.

Background: Tetrastarch solution (TS) can impair coagulation but the clinical relevance of this impairment is unclear in veterinary medicine.

Objective: Compare the effects of volume replacement (VR) with lactated Ringer's solution (LRS) or 6% TS on coagulation in hemorrhaged dogs.

Animals: Six healthy English Pointer dogs (19.