Revista Medica del Hospital General de Mexico最新文献

{"title":"Hypertrophic pyloric stenosis in a preterm infant: a case report","authors":"L.P. Islas-Domínguez ,&nbsp;J.R. Jiménez-Jiménez ,&nbsp;J. Cruz-Díaz ,&nbsp;K. Castellanos Reyes","doi":"10.1016/j.hgmx.2017.02.002","DOIUrl":"10.1016/j.hgmx.2017.02.002","url":null,"abstract":"<div><p>We report the case of a preterm infant of 35 weeks gestation, who presents vomiting towards the end of the first week of life. Suspected diagnosis of hypertrophic pyloric stenosis by exclusion. The ultrasound confirms the diagnosis. Pyloromyotomy is performed with excellent evolution. We describe this case due to time of onset of the disease associated to a preterm infant.</p></div>","PeriodicalId":31559,"journal":{"name":"Revista Medica del Hospital General de Mexico","volume":"81 4","pages":"Pages 217-220"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.hgmx.2017.02.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42320163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pattern of differential expression of costimulatory molecules in myeloma cell line MM1.R","authors":"A. De la Cruz-Rosas ,&nbsp;A. Martínez-Tovar ,&nbsp;C. Ramos-Peñafiel ,&nbsp;J. Collazo-Jaloma ,&nbsp;I. Olarte-Carrillo","doi":"10.1016/j.hgmx.2016.08.005","DOIUrl":"10.1016/j.hgmx.2016.08.005","url":null,"abstract":"<div><p>T cells constantly recognise and eliminate circulating tumour cells. They require two signals in order to be activated: antigen presentation via TCR, and costimulatory interaction with different surface molecules of the B7 family, which may either enhance or attenuate immune response. In several cancers these molecules are deregulated, thereby promoting immune escape and the settlement or migration of cancer cells. In multiple myeloma, the expression of B7 co-inhibitory molecules and their relationship to disease progression have been identified. The MM1.R cell line is a useful cellular model for studying the progression of this disease, and therefore an analysis of the pattern of expression in this cell line helps to cast light on the immune status of this disease. Using a real-time PCR (quantitative RT-PCR) assay, we found that the main molecules expressed were those with an inhibitory function (B7-H1, B7-H3 and B7-H4), which suggests a high level of immune inhibition by these cells.</p></div>","PeriodicalId":31559,"journal":{"name":"Revista Medica del Hospital General de Mexico","volume":"81 4","pages":"Pages 197-202"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.hgmx.2016.08.005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"54295454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Proper electrocardiography-guided placement of a central venous catheter","authors":"Y.L. Argoti-Velasco ,&nbsp;O. Carrillo-Torres ,&nbsp;R.A. Sandoval-Mendoza ,&nbsp;W.G. Paez-Amaya ,&nbsp;X.Y. CAhuantzi-Caballero","doi":"10.1016/j.hgmx.2016.09.007","DOIUrl":"10.1016/j.hgmx.2016.09.007","url":null,"abstract":"<div><p>The placement of central venous catheters (CVC) has become a common procedure. The position of the CVC tip may vary according to the intended use. Ideally it should be placed in the extra-pericardial vena cava due to the potential risk of vascular disruption, cardiac perforation, and/or thrombosis.</p><p>A simple, economical, little-used method with a high rate of accuracy for positioning the CVC tip is based on electrocardiographic changes in the P wave that occur as it advances towards the vena cava.</p><p>This article explains the procedure for correctly placing the catheter using the technique described.</p></div>","PeriodicalId":31559,"journal":{"name":"Revista Medica del Hospital General de Mexico","volume":"81 4","pages":"Pages 262-267"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.hgmx.2016.09.007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"54295639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advantages of ketamine as a perioperative analgesic","authors":"D.M. Rascón-Martínez ,&nbsp;O. Carrillo-Torres ,&nbsp;R.G. Ramos-Nataren ,&nbsp;L. Rendón-Jaramillo","doi":"10.1016/j.hgmx.2016.10.007","DOIUrl":"10.1016/j.hgmx.2016.10.007","url":null,"abstract":"<div><p>The pharmacological effects of ketamine are being discovered constantly, and new mechanisms involving epi-genetics could account for some of its clinical responses. Nowadays, it is regarded as a pharmacological tool in translational research and has the potential to revolutionise the therapy of complex patient conditions such as pain and depression.</p><p>Medical interest in exploring the drug's properties has grown, as is demonstrated by the increased investigation over the last five years, according to research sites such as Pubmed. These publications draw attention to the multifaceted roles of ketamine as an anaesthetic, analgesic (in multiple contexts, chronic, acute, refractory and breakthrough pain), antihyperalgesic, neuromodulator, bronchodilator and/or antidepressant. It is therefore important to review the pharmacological characteristics and their implications in current treatments.</p></div>","PeriodicalId":31559,"journal":{"name":"Revista Medica del Hospital General de Mexico","volume":"81 4","pages":"Pages 253-261"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.hgmx.2016.10.007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"54296109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Semantic emotional processing (N400) in violent individuals from a community sample","authors":"K.X. Díaz-Galván ,&nbsp;F. Ostrosky-Shejet ,&nbsp;C. Romero-Rebollar ,&nbsp;M.L. Pérez-López ,&nbsp;O. Ortega-Noriega","doi":"10.1016/j.hgmx.2017.10.001","DOIUrl":"10.1016/j.hgmx.2017.10.001","url":null,"abstract":"<div><h3>Background</h3><p>Several studies have suggested different brain abnormalities and cognitive impairment in violent individuals, all of them associated with brain areas like the prefrontal and temporal cortex and limbic regions involving executive functions, decision making, language and emotional regulation. However, most studies have focused on EEG quantitative analysis or other components like the P300; additionally, the majority have been performed on forensic samples.</p></div><div><h3>Objective</h3><p>To explore semantic/emotional processing using an N400 paradigm in a general population sample.</p></div><div><h3>Material and methods</h3><p>60 adult males were recruited and divided into two groups: control group (healthy men from the general population; <em>n</em> <!-->=<!--> <!-->30), violent group (violent men from the general population; <em>n</em> <!-->=<!--> <!-->30). All subjects were assessed with an aggression questionnaire (RPQ; Raine et al.<span>¹⁷</span>) to be classified into one of the groups. Repeated-measures [Group (violent, control)<!--> <!-->×<!--> <!-->condition (congruent, incongruent)] ANOVA was used. Separate analyses were performed on the peak amplitude of the N400 difference wave and the original peaks from the incongruent and congruent conditions.</p></div><div><h3>Results</h3><p>We found no significant differences in behavioral responses. However we found that the control group elicited different activity for each condition (congruent and incongruent); the violent group did not. We found significant differences in the N400 difference wave in medial and lateral lines between the groups. There were differences in the congruent condition in all the lines between groups; there were no differences in the incongruent wave between groups. In the brain mapping we observed that the control group elicited negative activity during the incongruent condition and positive activity during the congruent; meanwhile the violent group elicited similar activity in both conditions.</p></div><div><h3>Conclusions</h3><p>Semantic emotional processing is impaired in violent individuals, suggesting deficient processing in the integration of language elements in an emotional context. The biological risk of violence in these individuals is disputed.</p></div>","PeriodicalId":31559,"journal":{"name":"Revista Medica del Hospital General de Mexico","volume":"81 3","pages":"Pages 107-114"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.hgmx.2017.10.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41261168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bilateral, metachronic ovarian Sertoli–Leydig cell tumour in an 11-year-old patient: A case report","authors":"C. Gómez-Peñaloza ,&nbsp;A. Cañavera-Constantino ,&nbsp;G. Aristi-Urista","doi":"10.1016/j.hgmx.2017.03.008","DOIUrl":"10.1016/j.hgmx.2017.03.008","url":null,"abstract":"<div><p>Sertoli–Leydig cell tumours (SLCT) are rare tumours, accounting for less than 0.5% among the ovarian tumours, and occur most frequently in the second and third decades. The majority of them are unilateral and diagnosed at stage I. We report the case of an 11-year-old girl with an abdominal mass and virilisation; left salpingo-oophorectomy was performed and an ovarian SLCT of intermediate differentiation was diagnosed. Twenty nine months later, a new abdominal mass was discovered; a salpingo-oophorectomy was performed and a second SLCT, poorly differentiated, was diagnosed. These tumours represent a rare entity in adolescents and girls, and the bilateral and metachronic presentation makes it exceptional. Despite its low incidence, a high rate of suspicion should be given in the diagnosis of these tumours in very young patients with or without signs of virilisation, and strict surveillance should be maintained in the search for a new related tumour.</p></div>","PeriodicalId":31559,"journal":{"name":"Revista Medica del Hospital General de Mexico","volume":"81 3","pages":"Pages 139-145"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.hgmx.2017.03.008","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43636229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The costs of patenting in Mexico","authors":"L.R. Vega-González ,&nbsp;I.J. Hernández-Jardines","doi":"10.1016/j.hgmx.2017.05.004","DOIUrl":"10.1016/j.hgmx.2017.05.004","url":null,"abstract":"<div><p>Many researchers and scholars do not know that the total costs to obtain a patent are considerable and that the implementation of a logistics system and specific management to carry out the process successfully is required. The aim of this paper is to show, through empirical evidence, that patenting costs are considerable. The methodology is the analysis of selected and representative cases of the total costs over the project routes, incurred by an R&amp;D Center of the National Autonomous University of Mexico (UNAM), during the processes performed to obtain patents for some academic inventions. The findings are that the costs that were incurred to obtain two national patents were quite significant, but much more in the case of patent applications abroad, either by direct application or through the Patent Cooperation Treaty (PCT).</p><p>We also found that the process time takes an average of three to six years, depending on the type of patent application. Finally, the costs shown could be considered as <em>reference costs</em> for budget preparation. Nevertheless, the process does not guarantee obtaining patent titles in all cases.</p></div>","PeriodicalId":31559,"journal":{"name":"Revista Medica del Hospital General de Mexico","volume":"81 3","pages":"Pages 165-176"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.hgmx.2017.05.004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47440112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Clinical and differential diagnosis: Dengue, chikungunya and Zika","authors":"S.L. Beltrán-Silva,&nbsp;S.S. Chacón-Hernández,&nbsp;E. Moreno-Palacios,&nbsp;J.Á. Pereyra-Molina","doi":"10.1016/j.hgmx.2016.09.011","DOIUrl":"10.1016/j.hgmx.2016.09.011","url":null,"abstract":"<div><p>Vector-borne diseases account for more than 17% of all infectious diseases. In the Americas, dengue, chikungunya and Zika constitute a potential epidemiological risk due to the recent increase in cases, complications, and severity. The co-circulation of the three diseases is a matter of public health interest due to the fact that they are transmitted by the same vector as well as the increase in the number of cases of microcephaly related to Zika virus, post-chikungunya chronic joint disease, and severe dengue. Therefore, it is important for clinicians to be familiar with the various clinical presentations and laboratory methods to make the differential diagnosis, start appropriate treatment, and prevent the associated complications.</p></div>","PeriodicalId":31559,"journal":{"name":"Revista Medica del Hospital General de Mexico","volume":"81 3","pages":"Pages 146-153"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.hgmx.2016.09.011","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"54295762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Frantz's tumour. Unusual presentation in two adolescents","authors":"Z. Botello-Hernández ,&nbsp;R.A. Fuentes-Reyes ,&nbsp;M. Hernández-González ,&nbsp;C. Mosqueira-Mondragón ,&nbsp;E. Pérez-Torres ,&nbsp;O. Chapa-Azuela","doi":"10.1016/j.hgmx.2017.06.003","DOIUrl":"10.1016/j.hgmx.2017.06.003","url":null,"abstract":"<div><h3>Introduction</h3><p>Solid pseudopapillary neoplasm of the pancreas is a rare form of cancer with low malignant potential, accounting for 0.17–2.7% of all pancreatic tumours.</p></div><div><h3>Case report 1</h3><p>A 17-year-old female patient who presented with symptoms six months after a Caesarean section. She was referred to our institution for a 10<!--> <!-->cm<!--> <!-->×<!--> <!-->10<!--> <!-->cm tumour in the upper right quadrant. Abdominal computed tomography showed a mixed mass at the head of the pancreas compatible with Frantz's tumour. Underwent surgery, in which the classic Whipple procedure was performed.</p></div><div><h3>Case report 2</h3><p>A 17-year-old female patient with a history of blunt abdominal trauma days before admission. Abdominal computed tomography showed a 10.6<!--> <!-->cm<!--> <!-->×<!--> <!-->10<!--> <!-->cm heterogeneous and septate tumour at the head of the pancreas; preoperative diagnosis of solid pseudopapillary neoplasm. Underwent surgery, in which the pylorus-preserving Whipple procedure was performed.</p></div><div><h3>Conclusion</h3><p>Solid pseudopapillary neoplasm of the pancreas is a rare tumour of unknown origin and with good prognosis after surgical resection.</p></div>","PeriodicalId":31559,"journal":{"name":"Revista Medica del Hospital General de Mexico","volume":"81 3","pages":"Pages 122-126"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.hgmx.2017.06.003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42932172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Allergic bronchopulmonary aspergillosis in teenager with bronchial asthma","authors":"C.I. Urquiza-Ramírez,&nbsp;G.A. Eliosa-Alvarado,&nbsp;S. González-Flores,&nbsp;J.C. Fernández de Córdova-Aguirre,&nbsp;A.A. Velasco-Medina,&nbsp;G. Velázquez-Sámano","doi":"10.1016/j.hgmx.2017.05.001","DOIUrl":"10.1016/j.hgmx.2017.05.001","url":null,"abstract":"<div><p>Allergic bronchopulmonary aspergillosis (ABPA) is a pulmonary disorder caused by hypersensitivity mechanisms against antigens released by Aspergillus species, colonizing the airways.</p><p>We present the case of a 16-year-old male with a history of asthma and allergic rhinoconjunctivitis with a history of 15 months of cough with purulent sputum, intermittent fever and dyspnea. Thoracic tomography showed bronchiectasis accompanied by mucus impaction. He was treated with different antibiotics and steroid regimens, without a favorable clinical response. The presence of eosinophilia in the peripheral blood, immunoglobulin E Total, skin tests for Aspergillus positive guided the diagnosis of ABPA. Treatment with prednisone plus itraconazole was started, with remission of symptoms.</p><p>ABPA should be suspected in patients with asthma with poor response to treatment and alteration in radiologic studies. Treatment includes systemic steroids and avoiding exposure to Aspergillus.</p></div>","PeriodicalId":31559,"journal":{"name":"Revista Medica del Hospital General de Mexico","volume":"81 3","pages":"Pages 134-138"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.hgmx.2017.05.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44556161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}