ABSTRACT
OBJECTIVE: Radiofrequency ablation (RFA) uses the heat generated by a high-frequency alternating electric current, and according to Ohm's and Joule's law, the delivered current is inversely proportional to the circuit impedance. The primary objective of this study was to investigate whether tissue impedance during radiofrequency ablation (RFA) for benign thyroid nodules is related to the degree of volume reduction. METHODS: This observational study included consecutive patients treated with RFA for benign thyroid nodules from February 2020 to August 2023. Technical effectiveness was defined as a volume reduction percentage (VRP) >75% at 6 months after the treatment. Multivariate logistic regression analyses were performed to identify the potential role of clinical factors and changes in tissue impedance on technique effectiveness. RESULTS: Totally 72 patients were included with 73 benign thyroid nodules. Maximal impedance peaks reached <18 times, and mean procedural impedance ≤300 Ω were significantly associated with a volume decrease of >75% at bivariate analysis. These cutoff points were exploratory, as no existing literature suggests these variables are related to the degree of volume reduction. After adjusting for age, volume, and composition, significant associations were found for mean electrical impedance in the multivariate analysis (OR = 4.86 [confidence interval [CI] 1.29-18.26], p = 0.019). The energy adjusted by volume (delivered energy) was not associated with a VRP >75% (p = 0.7746). CONCLUSIONS: This study suggests that a mean procedural impedance = 300 Ω is related to the effectiveness of RFA as measured by VRP. Additional prospective and randomized studies are needed to compare electrical parameters with VRP. LEVEL OF EVIDENCE: 3 Laryngoscope, 2024.
ABSTRACT
Purpose: Diabetes is a public health problem that requires strategies to impact glycemic control and reduce the risk of long-term medical complications. Pharmacological management is a necessary treatment for this disease. Therefore, semaglutide is an essential tool to achieve the treatment targets. The present study aimed to evaluate the semaglutide effects on a cohort with type 2 diabetes mellitus (T2DM) in Colombia. Materials and Methods: The cohort included 49 patients with T2DM that have been treated in a specialized care center. Their glycemic outcomes, weight, renal function, and adverse events were evaluated through a 3-, 6- and 12-month follow-up. Results: Significant differences were observed in the outcome evaluation: reduction of glycated hemoglobin levels (MD -2.74 CI -1.95 to -3.52 in 6 months), fasting plasma glucose levels, body weight (MD -7.11 CI -5.97 to -8.24), and the albumin-to-creatinine ratio. The results were maintained throughout the treatment period. The adverse event rate was 16.3%, predominating gastrointestinal events. Conclusion: This real-world evidence shows the efficacy of semaglutide in achieving treatment goals in patients with T2DM.
Subject(s)
Humans , Male , Middle Aged , Aortic Aneurysm/diagnosis , Aortic Aneurysm/etiology , Syphilis/complications , Syphilis/diagnosisABSTRACT
Introducción: la miocarditis (MCT) se define como un infiltrado inflamatorio del miocardio con degeneración y/o necrosis asociada. Su etiología incluye múltiples gérmenes, tóxicos y enfermedades autoinmunes entre otros. La causa más común es la viral y el diagnóstico es un reto por la variabilidad de manifestaciones, imágenes y rendimiento del laboratorio. Objetivo:describir dos casos de miocarditis que debutaron con fibrilación auricular como manifestación poco usual. Metodología: se registraron dos casos en Cali, Colombia, con diagnóstico de miocarditis por resonancia magnética cardíaca (cRNM) contrastada. Presentación de los casos: el primero corresponde a una mujer de 66 años con antecedentes de diabetes e hipotiroidismo que ingresó por síncope y el segundo a un paciente joven con dolor torácico de 43 años sin antecedentes patológicos. Se documentó fibrilación auricular (FA) y MCT aguda por hallazgos en la cRNM. Se dió manejo médico y los pacientes evolucionaron en forma satisfactoria sin falla cardíaca en el seguimiento. Discusión y conclusiones: los casos ponen en evidencia la heterogeneidad de las manifestaciones clínicas de la MCT aguda y la importancia de sospecharla ante FA de novo. El diagnóstico puede retrasarse en nuestro medio por la falta de acceso a la cRNM, que se ha constituido como una herramienta fundamental para diferenciarla de otras etiologías que también elevan marcadores como la troponina ultrasensible y ponen en riesgo la vida del paciente como la isquemia miocárdica.
Introduction: myocarditis (MCT) is characterized by an inflammatory infiltration into the myocardium associated with degeneration and/or necrosis. Its etiologies include multiple bacteria, toxins, and autoimmune diseases among others. But most commonly it is induced by viruses. Diagnosis is challenging due to its variable presentation, imaging, and laboratory results. Objective: to describe two cases of myocarditis which debuted with atrial fibrillation as an unusual manifestation. Methodology: two cases were registered in Cali, Colombia, with myocarditis diagnosed by contrasted cardiovascular magnetic resonance imaging (cMRI). Cases: the first case corresponds to a 66-year-old female patient with a history of diabetes and hypothyroidism who was admitted for a syncope episode. The second case is a 43-year-old male with chest pain and a negative medical history. Atrial fibrillation (AF) and acute MCT were documented by cMRI. Patients received medical treatment and evolved satisfactorily presenting no cardiac failure at follow-up. Discussion and conclusions: these cases show the heterogeneity of acute MCT clinical manifestations and the importance of suspecting MCT in the presence of de novo AF. Diagnosis may be delayed in our setting due to the lack of access to cMRI, which has become a fundamental tool to distinguish MCT from other life-threatening conditions, such as myocardial ischemia, which also elevate markers such as ultrasensitive troponin
Subject(s)
HumansABSTRACT
Introducción: La prediabetes es un estado intermedio de hiperglicemia, con una alta prevalencia en la población colombiana. Su relación con enfermedad cardiovascular y complicaciones macro y microvasculares se ha establecido, incrementando la evidencia científica en la literatura reciente. Objetivo: Describir las enfermedades cardiovasculares (complicaciones macrovasculares) relacionadas con prediabetes, su diagnóstico, fisiopatología, el enfoque de manejo y el tratamiento avalado para prevenir estas complicaciones. Materiales y métodos: Se realizó una revisión narrativa de la literatura, mediante búsqueda de artículos científicos en Medline entre 2015 y 2021. Resultados: Se seleccionaron 83 artículos. Se describe la relación de prediabetes con enfermedad cardiovascular, mortalidad, diagnóstico y tratamiento conforme a la literatura actualizada. Conclusiones: La importancia de la prediabetes radica en su asociación con complicaciones macrovasculares y su mortalidad, lo que pone en evidencia la importancia de estudiarla, seguirla y tratarla para evitar la progresión a diabetes mellitus, el desarrollo de desenlaces que finalizan en aumento de la morbimortalidad, alteración de la calidad de vida e incremento de los costos en salud.
Introduction: Prediabetes is an intermediate state of hyperglycemia with a high prevalence in the Colombian population. The relationship between prediabetes and cardiovascular disease as well as its association with macro and microvascular complications has been established, with scientific evidence increasing in recent literature. Objective: To describe cardiovascular diseases (macrovascular complications) related to prediabetes, their diagnosis, physiopathology, management approach, and treatment to prevent those complications. Materials and methods: A narrative review of the literature was conducted, searching for scientific articles in Medline during the 2015-2021 period. Results: 83 articles were selected, which described the relationship between prediabetes with cardiovascular disease, mortality, diagnosis, and treatment based on recent reports. Conclusions: The importance of prediabetes lies in its association with macrovascular complications and its mortality. This association highlights the importance of studying, monitoring, and treating this disease to avoid its progression to diabetes mellitus, the development of outcomes that end in increased morbidity and mortality, diminished quality of life, and increased health care costs.
Subject(s)
Humans , Quality of Life , Disease , Prediabetic State , Cardiovascular Diseases , Morbidity , Diabetes Mellitus , DiagnosisABSTRACT
Resumen Introducción: La hipertensión arterial sistémica (HTA) constituye el principal factor de riesgo para morbilidad y mortalidad cardiovascular a nivel global, afecta a todas las edades, sin distinción de género y etnicidad. Su tratamiento continúa constituyendo un reto, dada la persistencia del pobre control, especialmente en países como Colombia. Objetivo: Mostrar la evidencia disponible respecto al tratamiento actualizado de la HTA y la elección certera de los agentes antihipertensivos acorde con la individualidad de cada paciente. Asimismo, consolidar y comparar el efecto hipotensor de cada agente antihipertensivo más usado. Metodología: Se realizó una búsqueda avanzada con los términos DeCS y MeSH: hipertensión, agentes antihipertensivos, hipertensión esencial y terapia combinada, en los motores de búsqueda PubMed, Clinical Key, Lilacs, Scielo. Un total de 109 artículos se seleccionaron para elaborar en la presente revisión de la literatura. Conclusiones: La individualización del manejo de la HTA lleva al reconocimiento de los distintos fenotipos, la presencia de complicaciones, el examen físico, el género y la raza como puntos fundamentales para elegir el agente antihipertensivo más adecuado que permita alcanzar las metas de control y propenda por la reducción y prevención de las complicaciones derivadas de un control no óptimo.
Abstract Introduction: Systemic arterial hypertension (HT) constitutes the main risk factor for cardiovascular morbidity and mortality at a global level, affecting all ages regardless of gender and ethnicity. Its treatment continues to be a challenge, given the persistence of poor control, especially in countries like Colombia. Objective: To show the available evidence regarding the updated treatments of HT and the correct choice of antihypertensive agents according to the individual needs of each patient. Likewise, to consolidate and compare the hypotensive effect of the most used antihypertensive agents. Methodology: An advanced search was carried out with the terms DeCS and MeSH: Hypertension, antihypertensive agents, Essential Hypertension and Combination Therapy through the search engines PubMed, Clinical Key, Lilacs, Scielo. A total of 109 articles were selected to prepare the present literature review. Conclusions: An individualized hypertension treatment plan leads to the recognition of the different phenotypes, the presence of complications, the gender, and race, which are fundamental aspects to consider when choosing the appropriate antihypertensive agents. These findings allow for the achievement of the desired blood pressure target and leads to reduction and prevention of complications derived from suboptimal control.
Subject(s)
Humans , Male , Female , Essential Hypertension , Hypertension , Antihypertensive AgentsABSTRACT
Abstract Introduction: apical hypertrophic cardiomyopathy (HCM) accounts for 15% of patients with HCM in Japan. However, in our country it is a rare diagnosis. In this entity, the apex is almost exclusively affected, most commonly in the left ventricle. It is diagnosed by finding apical thickening greater than 15 mm or a ratio of left ventricular apical to basal wall thickness >1.3-1.5. It is treated symptomatically with beta blockers and automatic defibrillator implantation for primary prevention of sudden death. Case presentation: a 59-year-old patient in whom apical HCM, or Yamaguchi syndrome, was found incidentally. Conclusion: apical HCM is a rare entity, in many cases asymptomatic. Its prompt diagnosis allows early treatment and prevents cardiovascular outcomes, including fatal ones. (Acta Med Colomb 2021; 46. DOI:https://doi.org/10.36104/amc.2021.2082).
ABSTRACT
Resumen Introducción: El virus SARS-CoV-2 y su enfermedad COVID-19, afecta con mayor severidad a personas adultas mayores, sobre todo aquellas con multimorbilidad y fragilidad; esto debido a mecanismos fisiológicos como la inmunosenescencia o un pobre control de la actividad inflamatoria en esta población. Los estudios sobre el diagnóstico y tratamiento en estos pacientes son escasos y muchos de ellos tienen niveles de evidencia bajos. Objetivo: Describir las características clínicas y paraclínicas de una adulta mayor centenaria institucionalizada, frágil, con multimorbilidad quien sobrevive a la infección y desarrolla inmunidad en una unidad geriátrica de agudos. Presentación del caso: Centenaria institucionalizada con multimorbilidad y fragilidad con criterios de severidad de la enfermedad, quien fue manejada tempranamente y recuperada, llegando a desarrollar inmunidad. Conclusiones: El diagnóstico temprano, un manejo precoz y el abordaje geriátrico integral e interdisciplinar son indispensables para un desenlace favorable en pacientes adultos mayores con alto riesgo de progresión de enfermedad con COVID-19.
Abstract Introduction: SARS-CoV-2 virus, and the disease it causes (COVID-19), severely affects older adults (OA), especially those with multimorbidity and frailty. This is due to physiological mechanisms such as immunosenescence or poor control of inflammatory activity in this population. Studies of the diagnoses and treatments in these patients are scarce and many of them have low levels of evidence. Objective: To describe the clinical and paraclinical characteristics of a frail institutionalized centenarian female patient with multimorbidity who survived COVID-19 infection, developed immunity, and was treated in an acute geriatric unit. Case presentation: Institutionalized centenarian patient with multimorbidity and frailty who fulfilled the criteria for severe COVID-19 disease, was managed early, recovered, and eventually developed immunity. Conclusion: early diagnosis, early management and a comprehensive and interdisciplinary geriatric approach are essential for a favorable outcome in OA patients at high risk of COVID-19 disease progression.
Subject(s)
Aged , COVID-19 , Therapeutics , Mortality , SeroconversionABSTRACT
AIMS: Describe the local characteristics, methodology and results of the registry of acromegalic patients in Colombia (RAPACO). METHODS: Multicenter, retrospective study based on the registry of acromegalic patients in Colombia: RAPACO. The data collected included: demographics, diagnosis, approximate time of disease evolution, data on weight, height, body mass index (BMI), neck circumference (NC) abdominal circumference (AC) hip circumference (HC) and waist/hip ratio (WHR); clinical and biochemical data at the time of diagnosis, etiology, immunohistochemistry of the tumor and information related to types of treatment. Descriptive analytics were employed. RESULTS: A total of 201 patients (60% females) with an average age at registration of 49.5 ± 14.6 years and an average time of evolution of the disease of 6.96 ± 4.5 years. Average weight was 75.1 Kg ± 12.98, with an average BMI of 28.11 ± 4.33. The most frequent symptoms mentioned at the time of diagnosis were extremity enlargement and headache. The most frequent comorbidity was arterial hypertension in 50.3% of the cases. 78.6% of cases were caused by macroadenoma. 80.1% received surgical treatment, 77.6% were under medical treatment, of which 95.7% were receiving somatostatin analogues. 26.4% of patients were treated with radiation therapy. Of the patients who received any type of clinical treatment, only 2.5% reported biochemical control at registration. CONCLUSION: It is important to recognize the local epidemiological, clinical, biochemical and treatment characteristics in order to assist in further understanding this pathology to implement local measures to improve both the quality of life as well as the prognosis of the patients diagnosed.
Subject(s)
Acromegaly/therapy , Body Height , Body Mass Index , Quality of Life , Registries/statistics & numerical data , Acromegaly/epidemiology , Acromegaly/pathology , Colombia/epidemiology , Female , Follow-Up Studies , Humans , Male , Middle Aged , Morbidity , Prognosis , Retrospective Studies , Risk FactorsABSTRACT
Resumen Un cuadro de meningitis aséptica, en el contexto de un paciente inmunosuprimido con diagnóstico de infección por Virus de Inmunodeficiencia Humana (VIH), debe llevar a pensar en múltiples diagnósticos diferenciales. Entre estos, se incluye el virus varicela zóster (VVZ) como uno de los principales agentes causales de meningitis a líquido cefalorraquídeo claro. Su reactivación da lugar a múltiples manifestaciones neurológicas potencialmente mortales en las que se consideraba al rash vesicular, o exantema pápulo/vesículo/ costroso como un signo fundamental para su diagnóstico. No obstante, las lesiones cutáneas están ausentes en más de un tercio de los pacientes con compromiso del sistema nervioso central. A continuación, se presenta el caso de un paciente con infección por VIH que presenta cefalea más fiebre, con hallazgos en líquido cefalorraquídeo de pleocitosis neutrofílica y una prueba molecular confirmatoria para virus varicela zóster, en ausencia de rash vesicular previo que guiara hacia este diagnóstico. MÉD.UIS.2021;34(1): 91-9.
Abstract The clinical presentation of aseptic meningitis in the context of an immunosuppressed patient with a diagnosis of Human Immunodeficiency Virus (HIV) infection, should lead us to consider multiple differential diagnoses. Among these, the Varicella Zoster Virus (VZV) has been found as one of the main causative agents of clear cerebrospinal fluid meningitis. Its reactivation gives rise to multiple life-threatening neurological manifestations in which vesicular rash, or papule / vesicular / crusted rash was considered a fundamental sign for its diagnosis. However, skin lesions are absent in more than a third of patients with central nervous system involvement. Herein, we report a case of an HIV-infected patient with headache, fever and neutrophilic pleocytosis with FilmArray that confirms Varicella Zoster virus infection in an immunocompromised patient in the absence of vesicular rash. MÉD.UIS.2021;34(1): 91-9.
Subject(s)
Humans , Male , Adult , Meningitis, Aseptic , AIDS SerodiagnosisABSTRACT
El mecanismo de Frank-Starling es un concepto básico de la fisiología cardíaca y su aprendizaje. Constituye la base fundamental para el entendimiento del funcionamiento del corazón y patologías prevalentes y con alta morbimortalidad como lo es la insuficiencia cardíaca. Por lo cual, su relación con un proceso más interactivo como la erección del pene, podría asegurar un aprendizaje perdurable y práctico. La relación se fundamentó en el reemplazo del eje X de la curva por precarga en el caso del corazón y estimulación en el caso del pene, para así lograr una relación incluso con la disfunción eréctil, que sería el equivalente a la insuficiencia cardíaca. De esa manera, se encontró que a mayor estimulación hay mayor erección y a mayor precarga hay mayor eyección ventricular, teniendo ambas curvas una meseta. Asímismo, farmacológicamente, se encontró relación con el uso de estimulación ß-adrenérgica y de inhibidores selectivos de la fosfodiesterasa tipo 5 como el sildenafil, los cuales desplazan la curva hacia arriba y a la izquierda.
The Frank-Starling mechanism is a basic concept of cardiac physiology and the fundamental basis for understanding the cardiac performance and prevalent disorders at risk of high morbidity and mortality, such as heart failure. Therefore, its relation with an interactive process like penile erection may enable deeper insight into cardiac physiology. The X-axis of Frank-Starling's curve was changed from ventricular end-diastolic volume to stimulation, to achieve a relation that includes erectile dysfunction, which is the equivalent of heart failure. A direct relationship was found between stimulation and erection, as well as end-diastolic volume and ventricular ejection with a plateau in both curves. Likewise, pharmacologically, a relation was identified with the use of ß-adrenergic and selective inhibitor of phosphodiesterase (PDE) type 5 like sildenafil, which shift leftward and upward the Frank-Starling curve