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The need to improve access to health services for the transgender community has become evident, especially concerning cardiovascular risk, which is higher compared to the general population. Surgical procedures and hormone therapies are common in this population to affirm gender identity, but they pose challenges as they are associated with disruptions in lipid metabolism, body fat concentration, and insulin resistance. Additionally, there is an increased risk of adverse cardiovascular events such as venous thromboembolism, stroke, and myocardial infarction. The influence of sex hormones on the electrophysiological properties of the heart has been studied, highlighting gender differences that may predispose the transgender population to cardiac arrhythmias. Exogenous hormone therapy, for both transgender women and men, can affect the QT interval and increase the risk of arrhythmias, including atrial fibrillation. Although the incidence of arrhythmias in the transgender population is not entirely clear, evidence suggests the need for careful cardiovascular monitoring and consideration of risk factors before initiating hormone therapies. [ABSTRACT FROM AUTHOR]

Copyright of Enfermería en Cardiologia is the property of Asociacion Espanola de Enfermeria en Cardiologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Background and objective. Brachial plexus injuries are devastating lesions for the patient and their environment, with great functional loss. They require multidisciplinary management, complete clinical evaluation and complementary neurophysiological studies, imaging studies or both. In recent decades, the use of intraoperative neuromonitoring has been proposed as a useful tool for brachial plexus surgery, and helps to individualize decision-making in primary reconstruction of brachial plexus injuries. We describe the experience using different modalities of intraoperative neuromonitoring in patients with brachial plexus injuries in Hospital Universitario San José y Hospital Universitario San José Infantil de Bogotá, Colombia. Methods. Retrospective case series, conducted using electronic medical data from Hand Surgery and Microsurgery services, videos and preoperative images taken by the surgeon, and findings described in the report of intraoperative neurophysiological monitoring, of patients with brachial plexus injuries operated in the study period. Results. Fourteen patients underwent brachial plexus reconstruction using intraoperative neuromonitoring during the study period: 11 male (78%) and 3 female (22%); 9 (65%) right upper extremity injuries and 5 (35%) left. Age ranged from 19 to 62 years old (average of 33 years). Main etiology was motorcyclist accident. Direct electrical stimulation and stimulated electromyography were used in all patients. Somatosensory evoked potentials were measured in 9 (64%) patients, and transcranial motor evoked potentials were measured in 8 (57%) patients. Conclusions. In brachial plexus injuries, intraoperative electrophysiological studies allow better classification of nerve injuries and provide an optimal individualized surgical management, without increasing operative time. [ABSTRACT FROM AUTHOR]

Copyright of Enfermería en Cardiologia is the property of Asociacion Espanola de Enfermeria en Cardiologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Suicide is a global health problem, with suicidal behavior being one of the predictors of suicide mortality; however, its assessment is still complex. Although the amount of literature that has addressed different perspectives of suicidal behavior is abundant, it is necessary to deepen new methods that allow a rapid and objective assessment of it, providing clinicians and patients with an evaluation system that allows changes in emotional state to be recorded dynamically. The aim of this manuscript was to provide an overview of morphological patterns of auditory evoked potential P300 latency late in the assessment of suicidal behavior. [ABSTRACT FROM AUTHOR]

Objective: To describe the epidemiological and clinical characteristics of Guillain Barré Syndrome in patients treated at the Hospital Nacional Almanzor Aguinaga Asenjo 2012 - 2018. Material and methods: Descriptive, retrospective study. We reviewed 103 medical records of patients diagnosed with Guillain-Barré Syndrome at the Hospital Nacional Almanzor Aguinaga Asenjo 2012 - 2018. A data collection form for each patient was used as an instrument, using as a base the Epidemiological Clinical Investigation Surveillance form the Guillain Barré Syndrome of Social Security EsSalud. Results: The majority were male (63.5%), the age group between 40 and 60 years predominated (45.6%). The majority of the cases studied came from Lambayeque (43.7%) and Cajamarca (40.8%). The characteristic motor symptom of Guillain-Barré Syndrome is muscle weakness (80.8%). The clinical variant was not determined in 60%. The majority of patients presented improvement or was cured (81%) Conclusions: The clinical epidemiological characteristics of Guillain Barré syndrome, present in a higher frequency the male sex and the predominant motor symptom: muscular weakness, in addition there was a notable increase in the incidence of cases per year, from 2016. [ABSTRACT FROM AUTHOR]

Copyright of Enfermería en Cardiologia is the property of Asociacion Espanola de Enfermeria en Cardiologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Panamerican Journal of Neuropsychology / Cuadernos de Neuropsicología is the property of Cuadernos de Neuropsicologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Background and Objective. Brachial plexus injuries are one of the most devastating lesions for the patient. The presurgical low specificity and positive predicted value in the electrophysiology studies are the main indication to perform an intraoperative nerve recording. Despite the great progress obtained, the surgical treatment results in patients with brachial plexus lesions are fare from an ideal scenario. Nevertheless, the surgical management obtains better results than nonsurgical treatment. The aim of this study is to analyze the postoperative results of patients with brachial plexus surgery with and without transoperative electrophysiological monitoring. Methods. From 2007 to 2014 medical files and preoperative and postoperative videos of our patients with brachial plexus injury were evaluated, those patients underwent neurolysis, nerve grafts and/or nerve transfer. Patients with muscle transfer or arthrodesis were excluded. Two groups were formed, depending on the performance or absence of intraoperative nerve recording. Their pre and post-surgery videos were reviewed and rated according to a scale based on the Narakas and Raimondi valuation. Results. Twenty five patients were obtained. All postoperative assessments showed a statistically significant improvement (p <0.05) regardless either of the presence or the absence of intraoperative nerve recording. During the postoperative evaluation of the group with intraoperative monitoring, shoulder external rotation and movement of the middle fingers obtained statistically significant improvement (p <0.05), in comparison to the group without nerve recording. In the postoperative evaluation, 53.3% of patients presented with intraoperative nerve recording arose in 1 or more of the ranges of the rating scale; whereas in patients without it only 20% had increased. None of the patients gave a lower score while postoperative assessment. Conclusions. Even though the surgical treatment did not reestablish the complete patient movement, it reached better postsurgical outcomes. Draws attention to intraoperative nerve monitoring studies provide better clinical outcomes in the postoperative period in patients with brachial plexus injury. [ABSTRACT FROM AUTHOR]

In this review we raised the need of the students in general and in particular those of bioengineering and medicine to obtain basic information on the electrophysiology of excitable tissue. It is important to establish some historical concepts of how it evolved and the theoretical framework of electricity and electronics we handle today was structured. This information serves as a basis for understanding the technological development of electronics that is used particularly for the design and construction of biomedical devices. We discuss general concepts equivalent to the cell membrane excitable tissue and establish functional behavior of voltage and current in a biological system circuit. [ABSTRACT FROM AUTHOR]

Jules-Antoine Regnauld (1822-1895), French physician and pharmacist, who carried researches about mydriatic alkaloids (such as atropine), electrochemical phenomena, electromotive force, amalgams, properties of mixing in saline solutions, physiology, electrophysiology, fluorescence in live tissues, medical chemistry, anesthesia, and vision phenomena. [ABSTRACT FROM AUTHOR]

We narrate the main stages of the long journey that led to the structuring of modern electrovectorcardiography based on the fundamentals established by Willem Einthoven (1860- 1927), who held the physiology chair of the Leyden University (The Netherlands), and presented his string electrocardiograph in 1901. The Mexican electrovectorcardiography became strong thanks to the endeavor of Dr. Demetrio Sodi Pallares, a disciple of F.N. Wilson of Ann Arbor. Dr. Sodi Pallares founded the Mexican School of Electrovectorcardiography, which was a cornerstone in the field and was widely recognized internationally for several decades. This fact is due to the rational and not empirical approach to the electrical exploration of the heart, thanks to the application of the inductive---deductive Galilean procedure. It was then possible to obtain these results, through the study of myocardial depolarization and repolarization processes, under normal conditions and with bundle branch block, performed by Dr. Gustavo A. Medrano and collaborators, in the 1950 decade. The electrovectorcardiographic manifestations of the non complicated myocardial infarct were the object of studies, as well as those of the infarction complicated with rhythm and conduction disorders. Likewise, proximal and distal or peripheral blocks were studied. The current disciples of that School are now studying of cardiac arrhythmias with promising results. [ABSTRACT FROM AUTHOR]

Copyright of Revista de Salud Pública is the property of Universidad Nacional de Colombia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The present document reviews various aspects of the current status of cardiac resynchronization therapy: mechanisms of action, current indications and implantation technique. [ABSTRACT FROM AUTHOR]

The interventional treatment of arrhythmias with catheter ablation have become the first line therapy for a significant number of tachyarrithmias, offering curative treatment in the majority of them. Ventricular arrhythmias form a group of great interest for the interventional electrophysiologist, because in contrast to the traditional thought, today we can identify some sub-groups of monomorphic sustained ventricular tachycardia (MSVT) with very good percentages of cure, whereas others like those with ischemic etiology ablation is still a palliative procedure. In this paper we will review the different types of MSVT, its etiology and therapeutic options from the interventionist point of view. [ABSTRACT FROM AUTHOR]

In spite of the guidelines and consensus on its indications and application, electroconvulsive therapy (ECT) continues to be one of the therapeutic procedures with less knowledge on its mechanism of action. It is interesting to evaluate the way in which the factors that modulate the convulsant activity can be modified by this therapy and its relation with the therapeutic effect. The aim of the present article is to review, in the context of neurobiological theories, the bibliography regarding the electrophysiological mechanisms of action of ECT, mainly the anticonvulsant hypothesis. Having better knowledge about these mechanisms can achieve an improvement in the clinical practice and provide a starting point to search for alternative treatments based on the same physical bases. After doing a study of all the papers and reference books, those works which, according to their methodology and design, provide relevant scientific information with regard to the principal topic of this review and that have been published between 1993 and 2007 were selected. In order to provide better consistency to the text, a series of articles prior to 1993 that were considered important within the setting studied have been included, since they establish the theoretical bases of ECT and have been frequently mentioned after their sublication. The scientific evidence obtained is systematized into three sections: basic concepts, neurophysiological hypotheses and electrophysiological findings. [ABSTRACT FROM AUTHOR]

The present report describes the program of radiofrequency catheter ablation (RFCA) for atrial fibrillation (AF) in patients referred to the AF Clinic of the National Heart Institute. If the patient had specific inclusion criteria for RFCA of AF, and electrophysiological study is performed. A trans-septal approach and special mapping catheters are used to detect abnormal electrical activity (AEA). Pulmonary vein isolation is performed at the ostium/antrum of those veins with AEA if the patient had paroxysmal AF. Global pulmonary vein isolation with some additional lines guided by electroanatomical mapping is performed in the case of chronic AF. Postoperative follow-up includes consultation, ECG and Holter monitoring at 1, 3, 6 and 12-month. RFCA is a useful and relatively safe procedure for the treatment of AF and the only one with curative potential. [ABSTRACT FROM AUTHOR]

In this study we demonstrated the feasibility to get brain electrical recordings from one unanesthetized and unrestrained marine crab under such conditions that conserve intact its vascular, neural and neuroendocrine systems. We found that spontaneous activity is dominated by spikes and largely influenciated by the motor excited level of the animal. Likewise, we get clear evidences that the brain is able to detect structured visual signals, moving objects and tactile stimuli. Finally, we outline the possibility to use this preparation as experimental model to evaluate the effect of neuroactive agents. [ABSTRACT FROM AUTHOR]

The article presents a medical case involving a 74-year-old patient with recurrent syncope. It notes that an electrophysiological study was carried out, which showed an HV interval of 94 ms. It adds that it was decided to implant Micra transcatheter pacemaker. Follow-ups were reportedly carried out in the nurse's office of devices, observed during the first year.