[Effect of previous exposure to COVID-19, occurrence of spikes, and type of vaccine on the humoral immune response of institutionalized older adults].

This study evaluated the explanatory factors of humoral immune response in older adults admitted to long-term care institutions in Buenos Aires, Argentina, up to 180 days after vaccination. An open-label, prospective, multicenter cohort study was conducted with volunteers who received two doses of the Sputnik V, Sinopharm, or AZD1222 vaccines. Plasma samples were analyzed at 0 and 21 days after the first dose, 21 days after the second dose, and 120 and 180 days after the first dose.

Snijders Blok-Campeau Syndrome: Description of 20 Additional Individuals with Variants in and Literature Review.

Snijders Blok-Campeau syndrome (SNIBCPS, OMIM# 618205) is an extremely infrequent disease with only approximately 60 cases reported so far. SNIBCPS belongs to the group of neurodevelopmental disorders (NDDs). Clinical features of patients with SNIBCPS include global developmental delay, intellectual disability, speech and language difficulties and behavioral disorders like autism spectrum disorder.

Self-handicapping strategies in educational context: construction and validation of the Brazilian Self-Handicapping Strategies Scale (EEAPREJ).

Self-handicapping strategies refer to the set of choices and attitudes adopted to minimize blame for failure and increase the value of success in achievement situations. This paper aims to describe the stages of construction and the psychometric analysis of a scale to measure the self-handicapping strategies of university students. In study 1, the major steps for the construction of the scales and initial results are reported.

Prospective cohort study in the early stage of the COVID-19 pandemic, General Pueyrredón, Argentina (INECOVID): infection dynamics and risk factors.

Objective: To establish the magnitude and risk factors for SARS-CoV-2 infection in the General Pueyrredón, Buenos Aires, Argentina: the INECOVID study.

Methods: Prospective cohort designed with participants from the District general population. The follow-up period was from June 22nd to December 18th, 2020, with a minimum appointment interval of 21 days.

Influence of the Compaction Method in the Volumetric Design of Cold Recycled Mixtures with Emulsion.

Compaction of cold asphalt mixtures is a subject that has not been thoroughly studied, and, for this reason, requires new efforts from researchers to have a better understanding. Unlike hot mixtures, cold mixtures and mainly recycled mixtures require specific considerations for compaction. There is a lack of consensus about the methodology to select the optimum premix water and emulsion contents.

Laparoscopic near-total splenectomy: a single-center experience of a standardized procedure.

Near-total splenectomy (NTS) represents an innovative and effective surgery technique for spleen disease, reducing the risk of severe infections and thromboembolic events after total splenectomy. The authors reported a laparoscopic near-total splenectomy (LNTS) surgical experience following the optimal results of the open approach, describing a standardized and effective minimally invasive technique with the purpose of preserving a minimal residual spleen. From November 2006 to September 2016, 15 patients with splenic and hematologic disease underwent LNTS, according to a laparoscopic procedure developed by the authors.

Male cytogenetic evaluation prior to assisted reproduction procedures performed in Mar del Plata, Argentina.

Objective: This paper aimed to estimate the frequency of occurrence and the types of chromosomal abnormalities found in 141 infertile men with abnormal semen parameters.

Methods: the frequency and type of chromosomal abnormalities were determined with male mitotic karyotype analysis from peripheral blood through chromosome banding techniques before assisted reproduction procedures.

Results: In this series of 141 infertile men, 19 (13%) had chromosomal anomalies and 35 (25%) had polymorphic variants.

Iatrogenic colonic perforation: repair using laparoscopic technique.

Background: Iatrogenic colonic perforation is a rare complication of colonoscopies. Nowadays, there are still no specific guidelines for the optimal management of these complications (open surgery with colonic resection and anastomosis or colonic diversion, primary repair, endoscopic clips, nonoperative management, and laparoscopic approach).

Methods: A retrospective analysis of 9 patients operated on for iatrogenic colonic perforations (February 2002 to August 2009) is reported.

Laparoscopic approach to gastric remnant-stump: our initial successful experience on 3 cases.

Introduction: Laparoscopic treatment of gastric adenocarcinoma is still a debated issue. In this paper, we retrospectively reviewed 3 cases of laparoscopic treatment of gastric remnant-stump adenocarcinoma. We analyzed the feasibility, the postoperative outcome, and the short-term results.

Laparoscopic treatment of unicentric Castleman's disease with abdominal localization.

We report a case of unicentric Castleman's disease (angiofollicular lymph node hyperplasia) with abdominal localization, that was treated laparoscopically. The patient, a 23-year-old male, was referred to our unit for subtle symptoms of recurrent palpitations and vague abdominal pain. His physician had prescribed an abdominal echtomograph, which showed a mass located at the lower and anterior lower splenic pole.