57 results match your criteria: "Autonomous University of Santo Domingo[Affiliation]"

Methodology for integrated analysis of vector- and spectroscopic bioimpedance methods.

J Electr Bioimpedance

January 2024

Departamento de Física, Facultad de Ciencias Naturales y Exactas, Universidad de Oriente. Santiago de Cuba, Cuba.

Electrical bioimpedance is based on the opposition exerted by body tissues to the passage of an electrical current. This characteristic allows the assessment of the individual's body composition, nutritional status, and hydration status. Electrical bioimpedance can be used to estimate body composition, health-related markers, general health status, diagnosis and prognostic of diseases, evaluation of treatment progress, and others.

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  • Metastatic brain tumors commonly cause vasogenic edema, which can impact patient prognosis, but there is limited research on its diagnostic significance.
  • This study analyzed MRI data from 60 patients to investigate the correlation between the edema/tumor index (ETI) and tumor histopathology based on the 2021 WHO classification.
  • Results showed that although malignant tumors had larger edema volumes, the ETI didn't significantly correlate with histopathological grades, and ROC analysis indicated ETI wasn't a reliable predictor for malignancy.
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Wallenberg syndrome, also known as lateral medullary syndrome, is a rare condition affecting the vertebrobasilar circulation, causing symptoms such as vertigo, nystagmus, dysarthria, and hemifacial weakness. Typically linked to ischemic strokes, it can also arise from vertebrobasilar aneurysms. In rare cases, subclavian steal syndrome (SSS), involving retrograde flow in the vertebral artery due to subclavian stenosis, complicates the picture, as observed in this case of a 66-year-old woman with both conditions and a vertebrobasilar aneurysm.

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Bioimpedance formalism: A new approach for accessing the health status of cell and tissues.

Bioelectrochemistry

December 2024

Departamento de Física, Facultad de Ciencias Naturales y Exactas, Universidad de Oriente, CP 90500, Santiago de Cuba, Cuba. Electronic address:

This manuscript describes a novel methodology for studying relaxation dynamics in tissues and cells using characteristic frequency of bioimpedance spectroscopy measurements. The Bioimpedance Formalism allows for the simultaneous study of bioelectrical parameters in the frequency and time domains, providing insight into possible relaxation processes occurring in the tissue or cell of interest. Results from the Cole-Cole analysis showed no multiple relaxation processes associated with heterogeneity, with a visible age group separation in males compared with females.

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Introduction: Meritocracy, a concept revered as the cornerstone of fairness and equal opportunity, is critically examined in the context of neurosurgery. This article challenges the notion that success in this demanding field is solely determined by individual abilities and effort. It reveals that factors such as background, gender, and socioeconomic status significantly influence one's career trajectory.

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Introduction: Lumbar foraminal stenosis (LFS) occurs primarily due to degenerative changes in older adults, affecting the spinal foramina and leading to nerve compression. Characterized by pain, numbness, and muscle weakness, LFS arises from structural changes in discs, joints, and ligaments, further complicated by factors like inflammation and spondylolisthesis. Diagnosis combines patient history, physical examination, and imaging, while management ranges from conservative treatment to surgical intervention, underscoring the need for a tailored approach.

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  • Spinal surgery for conditions like myelopathy and radiculopathy demands both knowledge and precision, and advancements in 3D-printed cervical models are transforming surgical training by providing practical experience.
  • A study involving 20 neurosurgery residents demonstrated that these models effectively enhanced skills in tumor removal surgeries, receiving high satisfaction ratings for realism and training effectiveness.
  • The findings emphasize the importance of ongoing lab training for residents and highlight that these low-cost models are beneficial for all hospitals, improving surgical readiness regardless of resources.
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Objective: The search for other indicators to assess the weight and nutritional status of individuals is important as it may provide more accurate information and assist in personalized medicine. This work is aimed to develop a machine learning predictions of weigh status derived from bioimpedance measurements and other physical parameters of healthy younger volunteers from Southern Cuba Region.

Methods: A pilot random study at the Pediatrics Hospital was conducted.

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Objective: The search for other indicators to assess the weight status of individuals is important as it may provide more accurate information and assist in personalized medicine.This work is aimed to develop a machine learning predictions of weigh status derived from bioimpedance measurements and other physical parameters of healthy infant juvenile cohort from the Southern Cuba Region, Santiago de Cuba.

Methods: The volunteers were selected between 2002 and 2008, ranging in age between 2 and 18 years old.

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  • The study investigates how the ferrule effect and different types of dental posts affect stress distribution in three styles of maxillary central incisors: Fat, Medium, and Slim.
  • Nine models were created to simulate each tooth type with different post materials (metallic and fiber) and ferrule heights (none, 1 mm, and 2 mm).
  • Results showed that Slim incisors had the highest stress levels, especially when using metallic posts, highlighting the need for tailored dental treatments based on individual tooth morphology.
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Background: Neurosurgery is one of the most complex and challenging areas of medicine, and it requires an ongoing commitment to education and expertise. Preparing young neurosurgeons with comprehensive education that can allow them to achieve high professional standards is a pivotal aspect of our profession.

Methods: This paper aims to analyze the current scenario in neurosurgical training identifying innovative methods that can guarantee the highest level of proficiency in our specialty.

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Introduction: Neurosurgery is evolving with new techniques and technologies, relies heavily on high-quality education and training. Social networks like Twitter, Facebook, Instagram and LinkedIn have become integral to this training. These platforms enable sharing of surgical experiences, fostering global knowledge-sharing and collaboration among neurosurgeons.

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Lipotranferences in post neurosurgical esthetic defects.

Surg Neurol Int

December 2023

Laboratory of Microsurgical Neuroanatomy, Second Chair of Gross Anatomy, School of Medicine, University of Buenos Aires, San Fernando, Argentina.

Background: There are numerous procedures in which, beyond adequate manipulation of the temporalis muscle and cranial closure, patients may present bone and muscle defects due to atrophy and consequent facial asymmetry, causing psychological discomfort and functional deterioration. The objective of our work is to combine the knowledge of plastic surgery and apply it to cranial reconstructions with fat transfers in post-neurosurgical patients, analyzing its results.

Methods: During the year 2022, 45 fat transfer procedures were performed for the correction of craniofacial defects, of which 29 were female and 16 were male.

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  • * When there is instability or nerve compression, surgical options like anterior decompression and stabilization are necessary, particularly if a vertebral artery aneurysm is involved.
  • * A case study is provided where a patient with a vertebral pseudoaneurysm after myeloma treatment had successful management through an endonasal approach and spinal fusion, resulting in good recovery without major neurological issues.
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The present cases were used to investigate the reliability of the intraoperative decibel meter as an objective method of clipping efficiency in cerebral aneurysm surgery and to assess the impact of this method on the surgical procedure itself. Different methodologies have been developed and applied to directly or indirectly evaluate the placement of a clip, for example, intraoperative digital subtraction angiography (DSA), intraoperative micro-Doppler ultrasonography, and, more recently, indocyanine green (ICG). We included two patients with a previously non-treated unruptured brain aneurysm.

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Background: Neurocysticercosis (NCC) is the most common infestation of the central nervous system, caused by the larval stage of the pig tapeworm . It is prevalent in regions with poor sanitation and underdevelopment, such as Latin America.

Case Description: We present four cases in which they harbored an intraventricular/intraparenchymal, frontal convexity, cerebellomedullary, and intraparenchymal NCC cyst of medium size, respectively.

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Schwannomas are benign nerve sheath tumors that arise from Schwann cells, which are responsible for producing the myelin sheath that surrounds nerves. They are typically slow-growing and can occur in various locations in the body, including the lumbar region of the spine. We present a case of giant invasive intradural extramedullary schwannoma managed with posterior lumbar interbody fusion (PLIF) and laminectomy with excellent results.

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  • Dyspareunia is a condition that causes painful intercourse and can greatly affect a woman's psychological health and overall quality of life, especially for those with a history of sexual abuse.
  • This qualitative study involved 15 women in the Dominican Republic, exploring their experiences with dyspareunia using in-depth interviews and phenomenological analysis.
  • The findings revealed three key themes: the connection between past sexual abuse and dyspareunia, the fear of societal revictimization, and the sexual repercussions of this condition, highlighting the need for better understanding and innovative preventive strategies in addressing these issues.
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  • Gastrointestinal nematode infections significantly impact small ruminant production, worsened by growing resistance to traditional dewormers.
  • A study focused on the essential oil from Lippia dominguensis, particularly its effects on the eggs and adult forms of the resistant nematode Haemonchus contortus, showing promising results in lab tests.
  • Key components of the oil were identified, and results indicated strong anthelmintic activity with minimal toxicity, supporting the need for further testing in live animals.
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The increasing detection of (PCV3, family ) in clinically ill pigs worldwide has raised concerns on the implications of the virus on porcine health and the pork industry. Although pork production constitutes an important component of the livestock economy and is a major source of animal protein in the Caribbean Islands, there are no reports on PCV3 in pigs from the region so far. In the present study, PCV3 was detected in 21% (21/100) of diarrheic pigs (sampled at three farms) from the Caribbean nation of the Dominican Republic (DR).

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Inadequate sleep has been linked to a variety of impairments in bodily functions, including endocrine, metabolic, higher cortical function, and neurological disorders. For this reason, the aim of this study was to analyze the link between occupational pesticide exposure and sleep health among farmers in Almeria. A cross-sectional study was conducted among a population living on the coast of Almeria (southeastern Spain), where about 33,321 hectares of land are used for intensive agriculture in plastic greenhouses.

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Background: The sciatic nerve (SN) is the widest nerve of the human body that exits the pelvis through the greater sciatic foramen, usually below the piriformis muscle (PM), and descends between the greater trochanter of the femur and ischial tuberosity of the pelvis to the knee. The aim of this paper is to examine and identify the SN variations in relation to the PM, its prevalence, pattern, and course.

Methods: A prospective-descriptive cross-sectional study was carried out to determine the frequency of anatomical variations in the exit of the SN in relation with the PM in 20 anatomical bodies (corpses) of both genders, in equal numbers.

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Since the first report on isolation of porcine adenovirus serotype 5 (PAdV-5, species Porcine mastadenovirus C (PAdV-C)) from pigs with respiratory illness in Japan in 1987, PAdV-5 have been detected in a few fecal samples from healthy pigs and in some environmental samples. To date, only a single PAdV-5 strain (isolate HNF-70 from 1987) has been analyzed for the complete genome. We report here high detection rates of PAdV-5 (25.

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We report here high rates (47.5%, 48/101) of detection of porcine circovirus 2 (PCV2) in diarrheic pigs from three pig farms in the Dominican Republic. Seventeen of the PCV2 positive samples, representing the three pig farms, different age groups and sampling periods (2020-2021), were amplified for the complete PCV2 genome.

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