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1
artículo
Publicado 2024
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Machine learning is widely used in the medical field and is increasing more and more because of the amount of data stored. The results obtained by the predictive models serve as support for good decision-making for medical personnel. The objective was to identify which methods, variables, and models are used for the prediction of arterial hypertension using machine learning. The systematic review was carried out in the PubMed, ScienceDirect, Redalyc and Scopus search engines, studies referring to the prediction of early diagnosis of arterial hypertension in people. For the selection process, Prisma was used, applying different exclusion criteria. 10,916 articles were found, 15 being included for the review. Several authors apply more than one model to compare the results in their research. The model most mentioned, used and with the best result was Random Forest, obtaining a Specificity ...
2
artículo
Publicado 2022
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Introduction: The Peruvian health system usually has deciencies, This is how, since 2008, we have worked on the model of Public-Private Partnerships in Health (PPP), which seeks the best performance of the health system before being applied in the rest of similar hospital centers of the Peruvian health system. Objective: To compare the hospital management of a PPP model and a traditional model in two Essalud level II-2 hospitals. Methods: Mixed, non-experimental, and cross-sectional research carried out in two establishments, Hospital Alberto Barton Thompson (HABT) as PPP model and Hospital Luis Negreiros Vega (HLNV) as the traditional model, during the hospital management period from 2016 to 2018, six public officials and 150 external users. Hospital management was evaluated through hospital efficiency, nancial management, and user satisfaction. Results: In-hospital efficiency, the...
3
tesis de grado
Publicado 2024
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The purpose of this study is to demonstrate how Lean tools can be used to decrease waiting time for outpatients in a geriatric hospital. The study also evaluates the critical success factors of Lean implementation in the outpatient process. To achieve this, a three-phase service model was proposed, including problem analysis, implementation, and verification. The proposed solution includes the use of Standard Work, Kanban Board, and Poka-Yoke methodologies under the Lean Healthcare approach. The current and improved scenarios were simulated using the Arena software. The study's results showed that the implemented model improved patient satisfaction from 67.50% to 86.17%. This was due to a reduction in waiting time by 47%, total stay time by 44%, and an improvement in the registration process by 13%. This research shows how Lean Healthcare significantly reduces geriatric patient waiting t...
4
artículo
Publicado 2016
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El objetivo de la presente investigación es describir y analizar los trastornos de la actividad psíquica personal de pacientes posoperados de aneurisma cerebral prefrontal y explicar el compromiso de su actividad funcional mediante el modelo teórico informacional (Ortiz, 1998). La muestra estuvo conformada por pacientes diagnosticados por un médico especialista, a los cuales les fue extirpado un aneurisma con la particularidad de ser gigante, y que requirió la ablación de un segmento de esta área y otras técnicas neuroquirúrgicas de esta estructura del neocórtex, tan importante para el procesamiento afectivo-emotivo, cognitivoproductivo y conativo-volitivo de la información psíquica consciente del individuo. El muestreo fue no probabilístico, intencional, y se recogieron los datos durante el periodo de enero del 2009 a mayo del 2010. El diseño fue descriptivo, observacional...
5
artículo
Publicado 2021
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When making decisions, not all possible factors are always taken into account, due to the temporal limitation, either due to biased information, or even more so, the understanding of said information, or because the goals sought are adjusted to specific purposes, within a cloistered framework that may not be properly considered by the function that governs the system and determines how results are weighted, as well as by the context in which decisions take place. The choice of the correct function depends, to a great extent, on the social norms, and also on the possible sanctions that these can be given when talking about its results, so that the maximization of the beneficial results for the purpose of the function is in it struggles with minimizing those harmful to the evaluator. But in medicine, the code of ethics requires that the well-being of the patient be maximized. The ethical d...
6
artículo
Publicado 2000
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OBJECTIVE: Experimental models (EM) design to acquire brain neuroendoscopy (BNE) skill to be applied on patients. MATERIAL AND METHODS: Study performed in three phases. For the first two -design and training- we used bovine and human coipses randomly assigned to groups A and B according to physiological sodium chloride solution (SCS) volume needed to produce satisfactory hydrocephalus to perform BNE. During phase three, BNE was performed in 5 patients with brain pathology confirmed by CAT or NMR. RESULTS: SCS volume needed for satisfactory BNE in the bovine EM was usually 70 mL (p< 0,01). In human EM, artifitial hydrocephalus was obtained with 150 mL of SCS (p< 0,0 l). BNE was used as a diagnostic and therapeutic tool. Post BNE complications consisted in hallucinations, fever and memory impairment, that responded well to symptomatic therapy. CONCLUSIONS: EMs designed for this study...
7
tesis doctoral
Publicado 2014
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Descargue el texto completo en el repositorio institucional de la University of South Florida: https://scholarcommons.usf.edu/etd/5106
8
tesis de maestría
Una de las vías de activación de los folículos primordiales es la vía PI3K. Una vez activadas, llegaran a formar unos óvulos maduros que formarán embriones después de ser fertilizados. Se realizó el siguiente experimento usando ovarios de ratones de 3 días de edad: 1) las piezas de tejido ovárico fueron pretratadas por 24 horas con o sin activador PI3K 500μg/ml) más el inhibidor PTEN 1μM para activar los folículos primordiales; 2) las piezas fueron cultivadas en presencia de ácido ascórbico 100μg/ml y activina A 50ng/ml hasta por un período de 24 días. Los folículos secundarios aislados de estos cultivos fueron puestos en cultivo por 13 días más para obtener ovocitos maduros. Como resultado de estos cultivos, se incrementó en un 200% la obtención de folículos secundarios; no obstante, solo se obtuvo un 50% de ovocitos maduros comparados con el control. El sistema...
9
artículo
Publicado 2017
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El objetivo de la investigación es describir y analizar los trastornos del Sistema de Memoria de pacientes diagnosticados con depresión y/o ansiedad, haciendo un estudio comparativo con un grupo control de personas sin disfunción en esta esfera afectivo-emotiva; y explicar el compromiso de su actividad funcional mediante el modelo teórico informacional (Ortiz, 1994,1995,1997, 1997b, 1998, 1999, 2002). La muestra estuvo conformada por todos los pacientes diagnósticados por el Neuropsicólogo Clínico , los cuales han sido derivados para evaluación y tratamiento, al Servicio de Neuropsicología del Hospital Edgardo Rebagliati ,y el grupo control estuvo configurado por sujetos que no presenten dicha alteración, y que sean homogéneos en los datos demográficos con la muestra clínica . Se utilizó el Test de Recuerdo Selectivo de Herman Busckhe y Paula Altman, adaptado y validado en ...
10
artículo
Publicado 2020
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Introduction: The population is susceptible to COVID-19 and knowing the most predominant characteristics and comorbidities of those affected is essential to diminish its effects. Objective: This study analyzed the biological, social and clinical risk factors for mortality in hospitalized patients with COVID-19 in the district of Trujillo, Peru. Methods: A descriptive type of study was made, with a quantitative approach and a correlational, retrospective, cross-sectional design. Data was obtained from the Ministry of Health’s database, with a sample of 64 patients from March to May 2020. Results: 85,71% of the total deceased are male, the most predominant occupation is Retired with an 28,57% incidence, and an average age of 64,67 years. When it came to symptoms of deceased patients, respiratory distress represents the highest percentage of incidence with 90,48%, then fever with 80,95%, ...
11
tesis de maestría
Publicado 2017
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Universidad Nacional Agraria La Molina. Escuela de Posgrado. Maestría en Estadística Aplicada
12
artículo
Publicado 2023
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Background: Transradial amputation, which involves the loss of the upper limb below the elbow, is a reality that deeply affects people's lives. Objective: The research demonstrated the objective of modeling and simulating the movement of the fingers of a prosthesis for adult patients with transradial amputation, to increase their quality of life by allowing them to carry out specific daily activities more easily. Methodology: The morphological analysis and CAD design of the hand was carried out using as a model the hand of a volunteer adult patient with right transradial amputation. Likewise, the CAD design of the 2 DOF thumb was detailed using the SolidWorks Professional engineering software. Then kinematic modeling of the fingers of the hand was carried out using the Denavit – Hartenberg algorithm and the movements of the fingers were simulated using the Matlab engineering software. ...
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14
artículo
Publicado 2025
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In outpatient consultations, physicians utilize tools to optimize time and enhance their clinical interviewing skills, as these interactions can be complex (e.g., new problems, chronic conditions, mental health issues). New problems can be addressed using the TOPIC model (Tasks Oriented to Outpatient Care Processes), which sets standardized tasks and processes to identify needs in this type of visit. This article describes this tool.
15
artículo
Publicado 2014
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Introduction: The spermatogram is used as a test of seminal quality. Recently, the sperm fragmentation test has demonstrated importance as sperm DNA integrity would affect clinical results in assisted reproduction treatments. Objectives: To determine spermatogram variables that would independently predict sperm DNA fragmentation index (SFI). Design: Retrospective, comparative study. Settings: Grupo PRANOR, Reprogenetics Latinoamerica, Clinica Concebir, Lima, Peru. Biologic material: Sperm. Methods: Individual variables and two models were compared: the first model considered percentage of sperm viability and patient’s age; the second model included percentage of motile sperms and age. Logistic regression analysis was done. Main outcome measures: Sperm viability, age. Results: Multivariate analysis showed that both models were significantly superior to individuals variables (p<0.01). Th...
16
artículo
Publicado 2014
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Introduction: The spermatogram is used as a test of seminal quality. Recently, the sperm fragmentation test has demonstrated importance as sperm DNA integrity would affect clinical results in assisted reproduction treatments. Objectives: To determine spermatogram variables that would independently predict sperm DNA fragmentation index (SFI). Design: Retrospective, comparative study. Settings: Grupo PRANOR, Reprogenetics Latinoamerica, Clinica Concebir, Lima, Peru. Biologic material: Sperm. Methods: Individual variables and two models were compared: the first model considered percentage of sperm viability and patient’s age; the second model included percentage of motile sperms and age. Logistic regression analysis was done. Main outcome measures: Sperm viability, age. Results: Multivariate analysis showed that both models were significantly superior to individuals variables (p<0.01)....
17
artículo
Publicado 2022
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Background: It is essential to identify the epidemiological and clinical characteristics of patients infected with COVID-19 associated with disease progression leading to ICU admission. The objective was to systematically review the models or scores for predicting admission to the intensive care unit (ICU) available to date for patients with COVID-19. Methods: The study is a systematic review. PubMed, Scopus, Web of Science, Ovid-Medline, and Embase were searched until July 13, 2022. We included studies that have developed and validated a model or scoring system to predict ICU admission in patients with COVID-19. The primary outcome was ICU admission. Risk of bias assessment was performed using the PROBAST tool which is based on four domains: participants, predictors, outcome and analysis. Results: Two studies were included for data extraction and critical appraisal. Predictive models of...
18
artículo
Publicado 2018
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El propósito fue determinar el efecto del modelo pedagógico para prevenir úlceras por presión en pacientes hospitalarios con estudiantes de enfermería de la Universidad Nacional Hermilio Valdizán Huánuco, 2014. Para ello se usó el diseño cuasiexperimental, con un grupo de 46 estudiantes, mediante muestreo no probabilístico, empleando criterios de inclusión y exclusión. El modelo pedagógico fue organizado en cuatro sesiones educativas, una vez por semana, para medir competencias cognitiva, procedimental y actitudinal, aplicando cuestionario, guía de observación y escala tipo Likert adaptado. En el pretest 60% obtuvo nota regular y mala; en el postest 65% alcanzó resultado bien y muy bien. En lo procedimental en pretest el 70% realizó medidas incorrectas en prevención de UPP; en el postest 90% aplicó correctamente. En el pretest el 85% mostró conducta desfavorable; en p...
19
tesis de grado
Publicado 2017
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The present thesis work entitled “WEB INFORMATION SYSTEM FOR TO IMPROVE OF PROCESSES OF ATTENTION OF THE PATIENTS OF THE CENTER OF HEALTH JEQUETEPEQUE", it was developed in order to show that you can improve administrative management, through the development and implementation of a system under Web technology, allowing remote access to information; getting queries and reports. (Patient Records, Medical Records, Patient Consultations and treated Patient Reports, Medical Records per patient). Decreasing time information management. Specifically we used PHP code (hypertext Preprocessor) with MySQL as database manager for its development was used Rational Unified Process (RUP) for Web applications and UML modeling language with extensions for Web applications (WAE). For the development of this work has been used interviews, surveys and observations, as data collection techniques, asking op...
20
tesis de grado
Publicado 2014
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Objetivo: Demostrar la efectividad de un modelo de intervención educativa para familiares de pacientes oncológicos sometidos a quimioterapia en Hospital Daniel Alcides Carrión. Material y Método: El estudio es tipo cuantitativo, nivel aplicativo y método cuasiexperimental. La muestra fue seleccionada mediante el muestro no probabilístico y por conveniencia: 30 familiares. La investigación se desarrolló en 3 momentos: Momento 1: Captación- Realización del Pretest - Capacitación. Momento 2: 1° Visita Domiciliaria- 1° Evaluación del post test -Refuerzo de la capacitación. Momento 3: 2° visita domiciliaria –2° Evaluación del postest- Refuerzo de la capacitación. Resultados: Del 100%(30) familiares encuestados, antes de participar del modelo de intervención educativa, el 28% (8) conocen el manejo de los cuidados de pacientes oncológicos; en la 1ra Visita Domiciliaria el...
