Time filter

Source Type

Patent
University Los Andes, Hospital Universitario San Ignacio and Hospices Civils De Lyon | Date: 2016-11-14

A computer-based method is herein disclosed, allowing to differentiate automatically between two tissues of interest: an extrinsic and an intrinsic tissue, from a plurality of images, obtaining a quantitative assessment of each of said tissues without requiring the intervention of an expert. Said method involves the definition of a differentiation region in images obtained from a medical imaging acquisition device using a parametric contour, after which differentiation and quantification are carried out based on the photometric characteristics of the different tissues observed in images, evaluating the local neighborhood of each voxel belonging to the differentiation region previously defined in the plurality of images. The disclosed method increases to a great extent precision in differentiation and quantification of tissues, while the shown percentage error is considered tolerable for diagnostic purposes.


Patent
University Los Andes, Hospital Universitario San Ignacio, Hospices Civils De Lyon, Mendoza Leon, Uriza Carrasco, Douek and Hernandez | Date: 2017-03-22

A computer-based method is herein disclosed, allowing to differentiate automatically between two tissues of interest: an extrinsic and an intrinsic tissue, from a plurality of images, obtaining a quantitative assessment of each of said tissues without requiring the intervention of an expert. Said method involves the definition of a differentiation region in images obtained from a medical imaging acquisition device using a parametric contour, after which differentiation and quantification are carried out based on the photometric characteristics of the different tissues observed in images, evaluating the local neighborhood of each voxel belonging to the differentiation region previously defined in the plurality of images. The disclosed method increases to a great extent precision in differentiation and quantification of tissues, while the shown percentage error is considered tolerable for diagnostic purposes.


Laverde-Sabogal C.E.,Hospital Universitario San Ignacio | Garnica-Rosas L.M.,Pontifical Xavierian University | Correa-Gonzalez N.,Pontifical Xavierian University
Revista Colombiana de Anestesiologia | Year: 2016

Objectives: To present a clinical case and to conduct a non-systematic review of the literature on peripartum cardiomyopathy, and to describe its incidence, aetiology and pathophysiology. Material and methods: With the authorization of the Ethics Committee of our institution, we present the case of a patient of mestizo ethnic origin who developed asthenia, adynamia, lower limb asymmetrical pain and functional class deterioration during the post-partum period, and her management in the Intensive Care Unit and final outcome. The search of the literature was conducted in PubMed, Scielo and Bireme. Results: Peripartum cardiomyopathy is associated with significant morbidity and mortality. The clinical course varies between progressive improvement, heart failure, transplant or death. Some national reports were found. Conclusions: Peripartum cardiomyopathy affects a young and healthy population during a period of time ranging between the end of pregnancy and five months postpartum. The aetiology and pathogenesis are unknown, but several hypotheses have been proposed: viral myocarditis, autoimmune and/or abnormal haemodynamic response to the pregnancy, genetic susceptibility, malnutrition, and apoptosis. The prognosis of recovery of LVEF depends on early detection within seven days of the onset of symptoms, an initial LVEF greater than 30%, and a LVDD smaller than 60 mm. Mortality is associated with parity greater than four, older age and black ethnic background (6.4 times higher than in Caucasians). © 2015 Sociedad Colombiana de Anestesiología y Reanimación.


Gomez-Aldana A.J.,Pontifical Xavierian University | Gomez-Aldana A.J.,Hospital Universitario San Ignacio
Revista Facultad de Medicina | Year: 2013

The peritoneal tuberculosis is one of the differential diagnosis of ascites, but its documentation is provided by the presence of necrotizing granulomas as mycobacterial growth in samples taken from the peritoneum. This article presents the case of a patient with abdominal pain and ascites with the documentation of nodular lesions in the peritoneal cavity, with markedly elevated levels of "Carbohidrate Antigen o Cancer Antigen" CA 125, without changes in other organs. The peritoneum biopsies reports necrotizing granulomas and growth of mycobacteria in culture, then she received anti TB treatment with adequate response reducing the ascites' amount and earning weight.


Ricaurte L.,National University of Colombia | Vargas J.,National University of Colombia | Lozano E.,National University of Colombia | Lozano E.,Universitario San Ignacio | Diaz L.,Hospital Universitario San Ignacio
Transplantation Proceedings | Year: 2013

Introduction: Chronic kidney disease (CKD) has diverse causes and the outcomes can change with renal transplantation, which has the potential to increase quality of life and improve survival. Because transplant recipients usually have comorbid conditions, presurgical assessment, optimization of health status, monitoring, and intraoperative anesthetic management are essential. Objective: The objective of this study was to evaluate available medical literature concerning presurgical anesthetic assessment and intraoperative and postoperative anesthetic management of patients undergoing renal transplantation. Review Criteria: A bibliographic search was made in MEDLINE, OVID, and LILIACS without language or design limits. Available evidence from February 1991 to February 2011 was taken. Articles about anesthesia in renal transplantation were included. Information quality was assessed according to design type with "Critical Appraisal Skills Program" (CASP-UK) tools. Epidemiological data in Colombia were obtained from the Social Protection Ministry and FOSYGA (Solidarity and Guarantee Fund) web pages. Results: Regarding prognosis, CKD mortality increases with dialysis and with its duration, whereas transplantation reduces it and enhances survival. Recipient mortality, functionality, and graft lifespan are influenced by donor type (immediate diuresis with living donors, P <.05), hydration (60-90 mL/kg), early diuresis (13% mortality rate at 1 year if delayed and reduction of graft lifetime 20%-40%). When comparing diuresis, clearance creatinine, kidney perfusion, and function, there were no significant differences between general and regional anesthesia. Nevertheless, postoperative analgesia was better with epidural anesthesia. Conclusion: Examination of the patient and optimization of the overall health status contributes to graft optimal function and patient survival. Regional anesthesia has better control over postoperative pain, but it has no effect on the prognosis, The intraoperative maintenance of appropriate hydration enhances flux and renal perfusion, which allows early functionality of the graft. This, together with a living donor are considered good prognosis factors, moreover they reduce recipient mortality and improve graft lifetime. © 2013 Elsevier Inc. All rights reserved.


Cortes J.A.,National University of Colombia | Reyes P.,National University of Colombia | Gomez C.,Hospital Universitario San Ignacio | Buitrago G.,National University of Colombia | Leal A.L.,National University of Colombia
Revista Iberoamericana de Micologia | Year: 2011

Background: Fungal infections have increased in critical care patients, causing high morbidity and mortality. Aims: Describe the frequency and responsible fungal species involved in bloodstream fungal infection from 2001 to 2007 in tertiary care level hospitals belonging to a surveillance network in Colombian cities. Methods: Data were collected from a microbiology surveillance network based on 27 hospital laboratories in five Colombian cities. Data were entered into a Whonet® version 5.4 database. Fungemia data were analyzed according to location (Intensive care unit -ICU- vs. non-ICU services). Frequency over time was also described. Results: Fungal infections corresponded to 4.1% of all bloodstream infections. Candidemia represented 3.7% and 5.2% of all isolates in non-ICU and ICU services, respectively. Over 99% of the isolates were yeasts, and Candida albicans was the most frequently isolated organism in and out of the ICU, showing a decreasing trend in the last few years. In the adult ICU and non-ICU services, the second organism most frequently isolated was C. tropicalis, while C. parapsilopsis was the most frequent in the pediatric and neonatal ICU, also showing an overall decreasing trend. Cryptococcus neoformans was the fourth mycotic organism most frequently identified. Conclusions: In Colombia, epidemiology of fungal infections seems to be changing. C. albicans is the principal agent causing bloodstream fungal infection, but an increase of non-albicans species has been observed as well as high frequency of C. neoformans. © 2011.


Gomez-Venegas A.A.,Hospital Universitario San Ignacio | Vargas-Rubio R.D.,Hospital Universitario San Ignacio
Revista Espanola de Enfermedades Digestivas | Year: 2016

Background: Mycosis fungoides (MF) is a type of T-cell lymphoma with cutaneous involvement. It is a rare disease, of low incidence and usually affects middle-aged men. In most cases only the skin is involved although in advanced stages may present with extra cutaneous involvement including the gastrointestinal tract. Case report: We report the first case of MF with compromise of duodenal papilla, emphasizing the diagnostic approach and a brief review of the subject. Discussion: This case report proves the value of the endoscopic studies in patients with lymphoproliferative disorders, because of the impact in the diagnosis and prognosis. Also, this case report is relevant because there is no scientific evidence, as far as we know, of similar cases reported. © 2016. SEPD y © ARÁN EDICIONES, S.L.


Pertuz W.,National University of Colombia | Castaneda D.A.,National University of Colombia | Rincon O.,National University of Colombia | Lozano E.,National University of Colombia | Lozano E.,Hospital Universitario San Ignacio
Transplantation Proceedings | Year: 2014

Introduction: Currently in the medical literature there is controversy about the role and effects of renal transplantation (RTx) on the sexual functioning of patients with terminal chronic renal disease (TCRD). There is no clear evidence of the real impact of RTx on sexual functioning in these patients. This article makes a brief summary of the literature, describing the most important clinical concepts, evaluates results, and compares the impact of renal transplantation on sexual function before and after the procedure. Material and Methods: Medline and the Embase database were consulted; Medical Subject Headings used were "Kidney Failure, Chronic," "Kidney Transplantation," "Sexual Dysfunction," "Pleasure," "Sexual Behavior," and "Quality of Life." Search was limited to articles within the last 15 years. Results: Sexual dysfunction affects almost 87% of male and 60% to 80% of female patients; 40% to 78% of male patients with RTx report a sense of improvement on global sexual function, 25% to 30% of female patients of reproductive age with RTx report improvement in sexual performance and decreasing of menstrual cycle alterations. Fewer than 10% of patients receiving an RTx reported a decrease of sexual satisfaction. Discussion. Despite controversy, reviewed results show significant improvement of sexual functioning after receiving an RTx. Those who report no improvement of sexual functioning may have conditions attributable to implicit characteristics of TCRD (age, neuroendocrine/metabolic problems) and/or RTx (immunosuppressive therapy). RTx improves sexual functioning by improving sexual desire and overall sexual satisfaction. Conclusion: Identified determinants associated with improvement of sexual functioning are decreased prolactin serum level, age younger than 45 years, and onset of dialysis less than 6 months. © 2014 by Elsevier Inc. All rights reserved.


Patent
Hospital Universitario San Ignacio | Date: 2015-05-07

The present invention belongs to the field of medicine and relates to a method for the treatment of the obstruction of the airway, specially moderated obstructive sleep apnea/hypopnea syndrome (OSAHS) in adult patients, by using a soft cervical collar. The method of the invention achieves a significant reduction of the apnea/hypopnea index (AHI) in adult patients diagnosed with obstructive sleep apnea of moderate level.


Patent
Hospital Universitario San Ignacio | Date: 2014-12-26

The present utility model belongs to the field of medicine and consists of an item that facilitates interaction/communication between physicians and patients during the time different medical treatments that patients should undergo are performed and include stages within medical facilities and stages in the place of residence. Said item consists of a folder or logbook that allows storing in an ordered fashion all elements that emerge during the time in which a patient should undergo a particular medical treatment and should be handled in a controlled manner to avoid communication errors between physicians and patients, and therefore for encouraging the development and successful completion of such medical treatment.

Loading Hospital Universitario San Ignacio collaborators
Loading Hospital Universitario San Ignacio collaborators