Factors associated with severe maternal outcome in patients admitted to an intensive care unit in northeastern Brazil with postpartum hemorrhage: a retrospective cohort study.

Background: Postpartum hemorrhage (PPH) is the leading cause of maternal death worldwide, particularly in low- and middle-income countries; however, the majority of these deaths could be avoided with adequate obstetric care. Analyzing severe maternal outcomes (SMO) has been a major approach for evaluating the quality of the obstetric care provided, since the morbid events that lead to maternal death generally occur in sequence. The objective of this study was to analyze the clinical profile, management, maternal outcomes and factors associated with SMO in women who developed PPH and were admitted to an obstetric intensive care unit (ICU) in northeastern Brazil.

Pathology in Practice.

In collaboration with the American College of Veterinary Pathologists.

Practising with an obstetric box and a dummy improves students' confidence in performing obstetric procedures involving large animals.

Background: Usually, the teaching process of eutocia and dystocia on large animals is supported by the use of photographs, videos, animations and texts with descriptions of the births and the difficulties of delivery, being not enough to provide an effective experiential learning process in veterinary obstetrics. This study aimed to evaluate the learning and the student's perception of the impact of using an obstetric box and an articulated dummy as a teaching resource in a dynamic game methodology on learning obstetric diagnoses and procedures.

Methods: Veterinary students attended a theoretical class about foetal disposition and obstetrics manoeuvres and later attended a practical class about the same topic using an obstetric box and an articulated foal dummy.

Septic shock patients admitted to the intensive care unit with higher SOFA score tend to have higher incidence of abdominal compartment syndrome - a preliminary analysis.

Background: Intra-abdominal hypertension (IAH) is relatively frequent in critical patients. According to the most recent consensus of the World Society of Abdominal Compartment Society (WSACS), there are no predictive factors for IAH diagnosis. Risk factors are the only motivators to date for early IAH diagnosis.

Diagnostic delay in a patient with reactional lepromatous leprosy treated as testicular tuberculosis.

Leprosy is a chronic neglected and stigmatizing disease. Due to involvement of the peripheral nerves, it can result in physical disabilities, deformities, and emotional damage if not diagnosed and treated promptly. This is the case of a young patient with testicular pain and swelling and no improvement after a specific therapeutic scheme for tuberculosis.

Medication administration safety assessment tool: Construction and validation.

Objective: To build and validate the Patient Safety Assessment in Medication Administration (ASPAM - Avaliação da Segurança do Paciente na Administração de Medicamentos) tool.

Method: Methodological study in which the construction, Content Validation Index (CVI), construct validation (factorial analysis) and reliability were performed in terms of homogeneity (Cronbach's Alpha).

Results: The ASPAM reached CVI of 0.

Instruments for the care of pressure injury in pediatrics and hebiatrics: an integrative review of the literature.

Objective: to identify existing instruments in the scientific literature about the care of pressure injuries in pediatric and hebiatric patients.

Method: an integrative review that selected 32 articles from the PubMed/Medline, LILACS, Scopus and CINAHL databases using the descriptors pressure ulcer, decubitus ulcer, pediatrics, adolescent and protocols and their equivalent terms in Portuguese and Spanish. Inclusion criteria: research articles in full, in Portuguese, English or Spanish without any temporal cut-off.

Non-linear 3D finite element analysis of full-arch implant-supported fixed dentures.

Despite the necessity for faster clinical protocols for immediate loading of implant-supported dentures, there is a lack of biomechanical studies to confirm the rigid splinting effectiveness. We compared the stress in mandibular full-arch implant-supported fixed dentures under immediate loading through three-dimensional finite element analysis. Edentulous human mandible models were restored with a 4-implant fixed denture.

The influence of bone quality on the biomechanical behavior of full-arch implant-supported fixed prostheses.

We evaluated the influence of bone tissue type on stress distribution in full-arch implant-supported fixed prostheses using a three-dimensional finite element analysis. Stresses in cortical and trabecular bones were also investigated. Edentulous mandible models with four implants inserted into the interforaminal region were constructed from different bone types: type 1 - compact bone; type 2 - compact bone surrounding dense trabecular bone; type 3 - a thin layer of compact bone surrounding trabecular bone; and type 4 - low-quality trabecular bone.

Influence of abutment-to-fixture design on reliability and failure mode of all-ceramic crown systems.

Objective: Evaluate the effect of implant connection designs on reliability and failure modes of screw-retained all-ceramic crowns.

Methods: Central incisor ceramic crowns in zirconia abutments were screwed and torqued down to external hexagon (EH), internal hexagon (IH) and Morse taper (MT) implant systems. Single-load-to-fracture (SLF) test (n=4 per group) determined three step-stress fatigue profiles with specimens assigned in the ratio of 3:2:1.

The role of superstructure material on the stress distribution in mandibular full-arch implant-supported fixed dentures. A CT-based 3D-FEA.

This study evaluated the stress distribution in mandibular full-arch implant-supported fixed dentures with different veneering and metallic infrastructure materials, using three-dimensional finite element analysis. Ten models were obtained from an edentulous human mandible with a complete denture fixed by four implants. Acrylic resin (RES) and porcelain (POR) teeth were associated with infrastructures of titanium (Ti), gold (Au), silver-palladium (AgPd), chrome-cobalt (CoCr) and nickel-chrome (NiCr).

Color degradation of acrylic resin denture teeth as a function of liquid diet: ultraviolet-visible reflection analysis.

The effect of different beverages on acrylic resin denture teeth color degradation is evaluated. Ten acrylic resin denture teeth brands were evaluated: Art Plus (AP), Biolux (BX), Biotone IPN (BI), Magister (MG), Mondial 6 (MD), Premium 6 (PR), SR Vivodent PE (SR), Trilux (TR), Trubyte Biotone (TB), and Vipi Dent Plus (VP). Teeth were immersed in staining solutions (coffee, cola, and orange juice) or artificial saliva (control) (n=6) for 1, 7, 15, or 30 days.

Torque stability of different abutment screws submitted to mechanical cycling.

Purpose: To evaluate the torque stability of different UCLA retention screws of single implant-supported crowns submitted to mechanical cycling.

Materials And Methods: Crowns fabricated from nickel-chromium-molybdenum alloy were attached to external-hexagon implants and grouped by the different retention screws used (n = 10): Ti, titanium screws (BRUNIHT, Biomet 3i); Au, gold-palladium screws with 24-carat gold coating (Gold-Tite, Biomet 3i); TiC, titanium alloy (Ti-6Al-4V) screw with diamondlike carbon coating (Neotorque, Neodent); and TiN, Ti-6Al-4V screw with aluminum-titanium-nitride coating (Ti-Tite, Conexão). Three initial removal torque (RT) values were obtained for each screw after torque insertion using an analog torque gauge.

Effect of bleaching agents and soft drink on titanium surface topography.

The effects of carbamide peroxide, hydrogen peroxide and cola soft drink on the topographic modifications of commercially-pure titanium (CP-Ti) and Ti-6Al-4V were investigated. Ti discs were divided into 18 groups (n = 4) based on the solution treatment and Ti type. Specimens were immersed in 3 mL of each solution for 4 h per day (for the remaining 20 h, discs were left dry or immersed in artificial saliva) for 15 days.

Evaluation of torque maintenance of abutment and cylinder screws with Morse taper implants.

The screw loosening of implant-supported prostheses is a common mechanical failure and is related to several factors as insertion torque and preload. The aim of this study was to evaluate the torque maintenance of retention screws of tapered abutments and cylinders of Morse taper implants submitted to retightening and detorque measurements. Two groups were obtained (n = 12): group I-tapered abutment connected to the implant with titanium retention screw and group II-cylinder with metallic base connected to tapered abutment with titanium retention screw.