"Home Field Advantage": The Presence of a "Home" Neurosurgical Residency Training Program is Associated With Improved Match Outcomes.

BACKGROUND AND OBJECTIVES: Competition for neurosurgical residency training positions remains fierce. The support provided by applicants' home neurosurgery residency training programs (NRTP) is suspected to play a key role in the National Resident Matching Program (NRMP) process. We sought to evaluate the impact of the presence of an Accreditation Council for Graduate Medical Education-accredited NRTP at medical students' home institutions has on NRMP match outcomes. METHODS: Our cross-sectional observational study examined all US allopathic senior student Electronic Residency Application Service applications to a single NRTP from 2016 to 2022. RESULTS: We analyzed a total of 1650 Electronic Residency Application Service applications to a single NRTP, of which 1432 (86.8%) were from schools with an Accreditation Council for Graduate Medical Education-accredited NRTP (NRTP+) and 218 (13.2%) were from schools without a residency (NRTP-). NRTP+ applicants matched a higher rate on both pooled analysis (80.8% vs 71.6%, P = .002) and paired analysis (P = .02) over the seven-cycle study period. This difference was present before (82.4% vs 73.9%, P = .01) and after (77.2% vs 65.6%, P = .046) the COVID-19 pandemic. Cohorts were overall similar; however, NRTP+ applicants had more publication experiences (19.6 ± 19.0 vs 13.1 ± 10.2, P < .001) and were more likely to complete a research gap year (RGY) (25.8% vs 17.0%, P = .004). Completing a RGY was associated with an increased likelihood of matching for NRTP+ applicants but not for NRTP- applicants: NRTP+: 84.9% vs 78.1% (P = .0056); NRTP-: 70.3% vs 70.9% (P = .94). CONCLUSION: The presence of a NRTP at a medical student's home institution is associated with improved NRMP match outcomes. This held true both before and after the COVID-19 pandemic. Applicants from schools with a NRTP had more publication experiences and were more likely to complete a RGY. Completion of a RGY is associated with an increased likelihood of matching only for students with an affiliated NRTP.

Preresidency research output among US neurological surgery residents.

OBJECTIVE: Research productivity is often used to evaluate candidates for neurosurgery residency. Official annual reports describe the mean total number of research products of successful applicants for each match cycle; however, the average number of indexed publications, the highest-valued research product, is not reported separately from other research products. The primary objectives of this study were to describe the distribution of preresidency indexed publication quantity among successful neurosurgery applicants from 2017 to 2021 and determine whether any change in publication quantity across application cycles existed. Secondary objectives included determining the rate at which the average publication quantity is increasing across application cycles, whether this increase is driven by high-output applicants alone, and if a performance ceiling has been reached. METHODS: US doctor of medicine seniors applying to the senior author's institution between 2017 and 2021 and who successfully matched into any US neurosurgery program were included. Publication quantities were extracted using Scopus. Additional variables were extracted from residency applications. Mean (SD) and median (IQR) publication quantities were used to describe the distribution and compare across years. Applicants were ranked by descending publication count and divided into quartiles. Averages within each quartile were compared with respective quartiles across years. Averages of the top 10% most productive applicants were compared across years to determine if a performance ceiling existed. RESULTS: Overall, 93.2% of matched applicants were captured. The mean and median total numbers of publications for applicants who matched from 2017 to 2021 were 5.6 ± 8.3 and 3.0 (1.0, 7.0), respectively. The mean and median numbers of publications increased from 3.7 ± 5.3 and 2.0 (0.0, 5.0) in 2016-2017 to 8.1 ± 10.0 and 5.0 (2.0, 11.0) in 2020-2021 (p < 0.001). The distribution of publication quantity was right-skewed. Multivariable analysis determined the application year to be independently and positively correlated with publication quantity (ß 1.07 [95% CI 0.71-1.42], p < 0.001). All quartiles observed an increased average number of publications across years (p < 0.001). The mean and median numbers for the top 10% increased from 15.8 ± 8.7 and 13.0 (10.8, 15.5) in 2016-2017, respectively, to 31.3 ± 16.0 and 25.0 (21.0, 35.5) in 2020-2021 (p < 0.001). CONCLUSIONS: Indexed publications account for a small portion of the total research products that successful neurosurgery candidates list on applications. A high number of publications is not necessary for candidates to match, with approximately 50% of all applicants who successfully matched having ≤ 5 publications and 25% having ≤ 2 publications. The average preresidency publication quantity has been increasing yearly among neurosurgery applicants. This increase was present across the applicant pool. Additionally, no performance ceiling was observed.

Trends in utilization of standardized letters of recommendation in the 2021-2022 neurosurgery application process.

OBJECTIVE: Standardized letters of recommendation (SLORs) were introduced during the 2020-2021 neurosurgery residency application cycle, but suffered from poor interrater reliability and grade inflation. Changes were made to the SLOR template and utilization patterns in response to these shortcomings. The authors examined the second year of SLOR utilization. They hypothesized that grade inflation and interrater reliability would be improved from the first iteration. They also hypothesized that increased numbers of letters by single writers would correlate with broader rating distributions. METHODS: This cross-sectional study analyzed all SLORs submitted to a single neurosurgery residency program over the 2021-2022 cycle. Data from 7 competency domains and the overall rating were recorded and stratified by academic category of the letter writer. Interrater reliability was evaluated using Krippendorff's alpha. The frequency of letters written was evaluated using the Kruskal-Wallis H test. RESULTS: Ninety percent of SLORs rated applicants among the top 25%, but there was a significant decrease in the usage of the top 1% and top 2%-5% ratings. Interrater reliability was poor across all competencies. Writers who completed 1 SLOR rated applicants higher and had a narrower range than those who completed multiple SLORs. CONCLUSIONS: Changes in the format and subsequent utilization patterns of SLORs have slightly decreased grade inflation; however, interrater reliability remains poor. The most wide-ranging evaluators submitted the highest number of SLORs, suggesting that future evaluation and usage of SLORs should emphasize letter-writer characteristics and numbers of SLORs written. Overall, SLORs have been well and broadly accepted with subtle improvements in the second year of utilization.

Words matter: using natural language processing to predict neurosurgical residency match outcomes.

OBJECTIVE: Narrative letters of recommendation (NLORs) are considered by neurosurgical program directors to be among the most important parts of the residency application. However, the utility of these NLORs in predicting match outcomes compared to objective measures has not been determined. In this study, the authors compare the performance of machine learning models trained on applicant NLORs and demographic data to predict match outcomes and investigate whether narrative language is predictive of standardized letter of recommendation (SLOR) rankings. METHODS: This study analyzed 1498 NLORs from 391 applications submitted to a single neurosurgery residency program over the 2020-2021 cycle. Applicant demographics and match outcomes were extracted from Electronic Residency Application Service applications and training program websites. Logistic regression models using least absolute shrinkage and selection operator were trained to predict match outcomes using applicant NLOR text and demographics. Another model was trained on NLOR text to predict SLOR rankings. Model performance was estimated using area under the curve (AUC). RESULTS: Both the NLOR and demographics models were able to discriminate similarly between match outcomes (AUCs 0.75 and 0.80; p = 0.13). Words including "outstanding," "seamlessly," and "AOA" (Alpha Omega Alpha) were predictive of match success. This model was able to predict SLORs ranked in the top 5%. Words including "highest," "outstanding," and "best" were predictive of the top 5% SLORs. CONCLUSIONS: NLORs and demographic data similarly discriminate whether applicants will or will not match into a neurosurgical residency program. However, NLORs potentially provide further insight regarding applicant fit. Because words used in NLORs are predictive of both match outcomes and SLOR rankings, continuing to include narrative evaluations may be invaluable to the match process.

Premature ventricular complexes as a first manifestation in left ventricular non-compaction cardiomyopathy: A case report and focused review of the literature.

Left ventricular non-compaction (LVNC) cardiomyopathy is an uncommon unclassified or genetic myocardial disorder. Frequent premature ventricular complexes (PVCs) as unique finding in LVNC cardiomyopathy are rare. We report a case of a 36-year-old woman in whom isolated LVNC was diagnosed due to an incidental finding of PVCs in pre-operative consultation.

Embracing the Diversity of Latinx Communities to Promote Vaccinations.

While vaccine hesitancy is well documented in the literature among the Latinx community, little attention or effort is given to the nuances among the members of individual communities, such as country of origin, immigration status, generational status, primary language, race, age, sex, gender, or rural residence and how these complexities affect vaccine messaging and uptake. We have evidence that this heterogeneity causes differences in access to healthcare, attitudes towards vaccines, and degree of health disparities. In this review we will describe their impact on vaccination rates in the Latinx community, highlighting missed opportunities for public health outreach, and how targeted messaging could improve vaccine uptake.

Surveillance-to-Diagnostic Testing Program for Asymptomatic SARS-CoV-2 Infections on a Large, Urban Campus in Fall 2020.

BACKGROUND: Six months into the COVID-19 pandemic, college campuses faced uncertainty regarding the likely prevalence and spread of disease, necessitating large-scale testing to help guide policy following re-entry. METHODS: A SARS-CoV-2 testing program combining pooled saliva sample surveillance leading to diagnosis and intervention surveyed over 112,000 samples from 18,029 students, staff and faculty, as part of integrative efforts to mitigate transmission at the Georgia Institute of Technology in Fall 2020. RESULTS: Cumulatively, we confirmed 1,508 individuals diagnostically, 62% of these through the surveillance program and the remainder through diagnostic tests of symptomatic individuals administered on or off campus. The total strategy, including intensification of testing given case clusters early in the semester, was associated with reduced transmission following rapid case increases upon entry in Fall semester in August 2020, again in early November 2020, and upon re-entry for Spring semester in January 2021. During the Fall semester daily asymptomatic test positivity initially peaked at 4.1% but fell below 0.5% by mid-semester, averaging 0.84% across the Fall semester, with similar levels of control in Spring 2021. CONCLUSIONS: Owing to broad adoption by the campus community, we estimate that the program protected higher risk staff and faculty while allowing some normalization of education and research activities.

An Examination of Standardized Letters of Recommendation Rating Scales Among Neurosurgical Residency Candidates During the 2020-2021 Application Cycle.

BACKGROUND: Letters of recommendation (LORs) are historically an important, though subjective, component of the neurosurgery residency application process. Standardized LORs (SLORs) were introduced during the 2020 to 2021 application cycle. The intent of SLORs is to allow objective comparison of applicants and to reduce bias. OBJECTIVE: To examine the utility of SLORs during this application cycle. We hypothesized that "grade inflation" and poor inter-rater reliability, as described by other specialties using SLORs, would limit the utility of SLORs in their current form. METHODS: This cross-sectional study analyzed all SLORs submitted to a single neurosurgery residency program over the 2020 to 2021 cycle. Data from 7 competency domains and the overall rating were recorded and stratified by academic category of letter writer. Inter-rater reliability was evaluated using Krippendorff's alpha. RESULTS: One or more SLORs was submitted as part of 298 of 393 applications (76%). Approximately 58.3% of letters written by neurosurgery chairpersons rated a given applicant as being within the top 5% across all competencies. Approximately 44.4% of program director letters similarly rated applicants as amongst the top 5%, while 73.2% and 81.4% of letters by other neurosurgeons and general surgery evaluators, respectively, rated applicants in the top 5%. Inter-rater reliability was poor (<0.33) in all rating categories, including overall (α = 0.18). CONCLUSION: The utility of the first iteration of SLORs in neurosurgery applications is undermined by significant "grade inflation" and poor inter-rater reliability. Improvements are necessary for SLORs if they are to provide meaningful information in future application cycles.

Motivation and Engagement during Visually Guided Behavior.

Animal behavior is motivated by internal drives, such as thirst and hunger, generated in hypothalamic neurons that project widely to many brain areas. We find that water-restricted mice maintain stable, high-level contrast sensitivity and brief reaction time while performing a visual task, but then abruptly stop and become disengaged. Mice consume a significant amount of water when freely provided in their home cage immediately after the task, indicating that disengagement does not reflect cessation of thirst. Neuronal responses of V1 neurons are reduced in the disengaged state, but pupil diameter does not decrease, suggesting that animals' reduced level of arousal does not drive the transition to disengagement. Our findings indicate that satiation level alone does not have an instructive role in visually guided behavior and suggest that animals' behavior is governed by cost-benefit analysis that can override thirst signals.

Portable Ultrasonography to Assess Adult Hepatosteatosis in Rural Ecuador.

CONTEXT: Hepatosteatosis (HS) is prevalent worldwide and can be measured via ultrasonographic (US) hepatic-renal (H/R) echo-intensity ratio. OBJECTIVE: To examine the incidence of HS in rural communities of the Ecuadorian Chimborazo region and to validate portable US as an effective method of disease screening in rural settings. METHODS: Sagittal right liver/kidney B-mode US was performed in individuals from 4 villages using a portable US scanner equipped with a 3.5-MHz curvilinear probe. National Institutes of Health ImageJ software was used to computerize tissue echogenicity in both renal cortex and hepatic parenchyma offline. Regions of interest of 900 pixels were used for measuring pixel intensity of the right renal cortex and hepatic parenchyma when calculating the H/R ratio. The difference in pixel intensity between liver parenchyma and renal cortex was analyzed using an unpaired t test. The intraclass correlation coefficient was used to test intra- and interobserver reliability for computerizing the H/R ratio. RESULTS: Forty patients were enrolled in the study (32 women and 8 men; mean age, 40 years). The mean (SD) H/R ratio of study patients was 3.61 (2.32), moderately higher than normal (normal, H/R <1.5). A significant difference was found in mean (SD) pixel value between hepatic parenchyma and renal cortex (52.82 [15.34] vs 19.93 [10.39]; P<.001). Thirty-four patients (85%) had an H/R ratio greater than 1.5. The intra- and interobserver reliability of computerizing H/R ratio was excellent (r=0.940; P<.01). CONCLUSION: These findings suggest that HS is moderately present in persons in remote communities of Ecuador. The mean H/R ratio was greater than that in the diagnostic criteria for the disease. Portable US imaging may benefit these communities as an efficient method for the HS screening and diagnosis in rural areas.

Timeline of Intestinal Adaptation After Malabsortive Surgery: Effect of Luminal Nutrients, Biliopancreatic Secretion, and Glutamine Supplementation.

BACKGROUND: The aim of this study was to study the process of intestinal adaptation in the three limbs of the small intestine after malabsorptive bariatric surgery: the biliopancreatic limb, the alimentary limb, and the common channel. These limbs are exposed to different stimuli, namely, gastrointestinal transit and nutrients in the alimentary limb, biliopancreatic secretions in the biliopancreatic limb, and a mix of both in the common channel. We also wished to investigate the effect of glutamine supplementation on the adaptation process. METHODS: Three types of surgery were performed using a porcine model: biliopancreatic bypass (BPBP), massive (75%) short bowel resection as the positive control, and a sham operation (transection) as the negative control. We measured the height and width of intestinal villi, histidine decarboxylase (HDC) activity, and amount of HDC messenger RNA (mRNA) (standard diet or a diet supplemented with glutamine). RESULTS: An increase in HDC activity and mRNA expression was observed in the BPBP group. This increase coincided with an increase in the height and width of the intestinal villi. The increase in villus height was observed immediately after surgery and peaked at 2 weeks. Levels remained higher than those observed in sham-operated pigs for a further 4 weeks. CONCLUSIONS: The intestinal adaptation process in animals that underwent BPBP was less intense than in those that underwent massive short bowel resection and more intense than in those that underwent transection only. Supplementation with glutamine did not improve any of the parameters studied, although it did appear to accelerate the adaptive process.

Response reliability observed with voltage-sensitive dye imaging of cortical layer 2/3: the probability of activation hypothesis.

A central assertion in the study of neural processing is that our perception of the environment directly reflects the activity of our sensory neurons. This assertion reinforces the intuition that the strength of a sensory input directly modulates the amount of neural activity observed in response to that sensory feature: an increase in the strength of the input yields a graded increase in the amount of neural activity. However, cortical activity across a range of sensory pathways can be sparse, with individual neurons having remarkably low firing rates, often exhibiting suprathreshold activity on only a fraction of experimental trials. To compensate for this observed apparent unreliability, it is assumed that instead the local population of neurons, although not explicitly measured, does reliably represent the strength of the sensory input. This assumption, however, is largely untested. In this study, using wide-field voltage-sensitive dye (VSD) imaging of the somatosensory cortex in the anesthetized rat, we show that whisker deflection velocity, or stimulus strength, is not encoded by the magnitude of the population response at the level of cortex. Instead, modulation of whisker deflection velocity affects the likelihood of the cortical response, impacting the magnitude, rate of change, and spatial extent of the cortical response. An ideal observer analysis of the cortical response points to a probabilistic code based on repeated sampling across cortical columns and/or time, which we refer to as the probability of activation hypothesis. This hypothesis motivates a range of testable predictions for both future electrophysiological and future behavioral studies.

Revision surgery for one anastomosis gastric bypass with anti-reflux mechanism: a new surgical procedure using only not previously operated intestine / Cirugía de revisión de bypass gástrico de una anastomosis con mecanismo anti-reflujo: un nuevo procedimiento quirúrgico utilizando solo intestino no operado anteriormente

Introduction: Obesity is now an epidemic in industrialized countries with high prevalence (U.S. with 67%, Europa from 40% to 50%). This had led to the development of many bariatric procedures. Nevertheless, the primary surgery could fails due to several conditions. There is no standard re-operative procedure of revision for primary bariatric failure. Re-operate in the place of the primary surgery imply high rate of risks. We have developed a new procedure for revision surgery working only on not previously operated tissue. Methods: We measure the common channel from gastro- jejunal anastomosis until the ileocecal valve. Depending on the measure, we decide the length of intestine to be excluded (biliopancreatic limb and common channel). We interrupt the afferent loop before gastro-jejunostomy and the efferent loop 20 cm below the gastro-jejunostomy. For restoring the gastro-intestinal transit, we anastomose the upper part of the afferent and efferent loop side-to-side and the efferent loop segment to the upper part of the new common channel. Discussion: There is no standard procedure for revision of primary surgery. Even, the gold standard surgery Roux-en-Y gastric bypass is one of the most failed procedure (≤ 35%). We have developed the revision for One Anastomosis Gastric Bypass (BAGUA) working always in healthy tissue not previously used. Conclusions: A few number of patients with tailored BAGUA for morbid obesity will require a surgical rescue procedure due to excess or insufficient weight loss or weight regain. This new procedure has been proven to be easy and safe, avoiding the surgical difficulties of the classical revision through the scar tissue (AU)

Introducción: La obesidad es ahora una epidemia en los países industrializados con una alta prevalencia (Estados Unidos con el 67%, Europa desde el 40% al 50%). Esto ha llevado al desarrollo de muchos de los procedimientos bariátricos. Sin embargo, la cirugía primaria puede fallar debido a diversas condiciones. No existe un procedimiento quirúrgico standard para realizar revisión para la cirugía bariátrica que ha fallado. Re-operar en el lugar de la cirugía primaria implicar una alta tasa de riesgos. Nosotros hemos desarrollado un nuevo procedimiento para la cirugía de revisión trabajando únicamente en el tejido no operado previamente. Métodos: Nosotros medimos el canal común desde de la anastomosis gastro-yeyunal hasta la válvula ileocecal. Dependiendo de la medición, decidimos la longitud del intestino para ser excluido (asa biliopancreática y canal común). Interrumpimos el asa aferente antes gastro-yeyunostomía y el asa eferente a 20 cm por debajo de la gastro- yeyunostomía. Para restaurar el tránsito gastro-intestinal, anastomosamos la parte superior del asa aferente y eferente en forma latero-lateral, y el segmento del asa eferente a la parte superior del nuevo canal común. Discusión: No existe un procedimiento estándar para la revisión de la cirugía primaria. Incluso, la cirugía Gold standard el bypass gástrico Roux-en-Y, es uno de los procedimientos con más fracasos (≤ 35%). Hemos desarrollado la revisión del Bypass Gástrico de Una Anastomosis (BAGUA) trabajando siempre en tejido sano no utilizado previamente. Conclusiones: Un escaso número de pacientes con BAGUA a medida para obesidad mórbida requerirá un procedimiento de rescate quirúrgico debido a exceso de peso o pérdida de peso insuficiente, o la re-ganancia del peso. Este nuevo procedimiento ha demostrado ser fácil y seguro, evitando las dificultades quirúrgicas de la revisión clásica a través del tejido cicatrizado (AU)

Miocardiopatía arritmogénica del ventrículo derecho / Arrytmogenic right ventricular dysplasia

La miocardiopatía arritmogénica del ventrículo derecho es una patología, en la mayoría de los casos de origen genético autosómico dominante caracterizado por el compromiso, tanto morfológico como funcional, del ventrículo derecho en el que se reemplaza el tejido del miocardio normal por tejido fibroadiposo, generando un sustrato arritmogénico. Se debe sospechar en todo paciente joven que presente síncope, taquiarritmia ventricular o paro cardiaco. Su diagnóstico se establece por la sumatoria de criterios que incluyen hallazgos morfológicos, electrocardiográficos y alteraciones funcionales. En la actualidad no hay un tratamiento único establecido; sin embargo, se sigue trabajando en el diagnóstico temprano y el uso de terapias más avanzadas. Se realiza una revisión de la literatura en el contexto de la presentación de un caso clínico diagnosticado en la ciudad de Bucaramanga en un adulto joven de género masculino. MÉD.UIS. 27(3):123-134.

Arrhythmogenic right ventricular dysplasia is a pathology, mostly genetic of dominant autosomic pattern characterized by both morphologic and functional compromise of the right ventricle in which normal myocardial tissue its replaced by fibrous and adipose tissue generating an arrhythmogenic substrate. It must be evaluated in all young patients presenting syncope, ventricular tachyarrhythmia or cardiac arrest. Its diagnosis it's established upon the consideration of morphological criteria, electrocardiographic findings and functional alterations. Currently there is not a definite treatment established; however there is ongoing research in early diagnosis and advanced therapies usage. In this article we provide a literature review in the context of a clinical case diagnosed in a male young adult from the city of Bucaramanga in Colombia. MÉD.UIS. 27(3):123-134.

Revision surgery for one anastomosis gastric bypass with anti-reflux mechanism: a new surgical procedure using only not previously operated intestine.

INTRODUCTION: Obesity is now an epidemic in industrialized countries with high prevalence (U.S. with 67%, Europa from 40% to 50%). This had led to the development of many bariatric procedures. Nevertheless, the primary surgery could fails due to several conditions. There is no standard re-operative procedure of revision for primary bariatric failure. Re-operate in the place of the primary surgery imply high rate of risks. We have developed a new procedure for revision surgery working only on not previously operated tissue. METHODS: We measure the common channel from gastro- jejunal anastomosis until the ileocecal valve. Depending on the measure, we decide the length of intestine to be excluded (biliopancreatic limb and common channel). We interrupt the afferent loop before gastro-jejunostomy and the efferent loop 20 cm below the gastro-jejunostomy. For restoring the gastro-intestinal transit, we anastomose the upper part of the afferent and efferent loop side-to-side and the efferent loop segment to the upper part of the new common channel. DISCUSSION: There is no standard procedure for revision of primary surgery. Even, the gold standard surgery Roux-en-Y gastric bypass is one of the most failed procedure (≤ 35%). We have developed the revision for One Anastomosis Gastric Bypass (BAGUA) working always in healthy tissue not previously used. CONCLUSIONS: A few number of patients with tailored BAGUA for morbid obesity will require a surgical rescue procedure due to excess or insufficient weight loss or weight regain. This new procedure has been proven to be easy and safe, avoiding the surgical difficulties of the classical revision through the scar tissue.

Introducción: La obesidad es ahora una epidemia en los países industrializados con una alta prevalencia (Estados Unidos con el 67%, Europa desde el 40% al 50%). Esto ha llevado al desarrollo de muchos de los procedimientos bariatricos. Sin embargo, la cirugía primaria puede fallar debido a diversas condiciones. No existe un procedimiento quirúrgico standard para realizar revisión para la cirugía bariátrica que ha fallado. Re-operar en el lugar de la cirugía primaria implicar una alta tasa de riesgos. Nosotros hemos desarrollado un nuevo procedimiento para la cirugia de revision trabajando únicamente en el tejido no operado previamente. Métodos: Nosotros medimos el canal común desde de la anastomosis gastro-yeyunal hasta la valvula ileocecal. Dependiendo de la medición, decidimos la longitud del intestino para ser excluido (asa biliopancreatica y canal común). Interrumpimos el asa aferente antes gastro-yeyunostomia y el asa eferente a 20 cm por debajo de la gastro- yeyunostomía. Para restaurar el tránsito gastro-intestinal, anastomosamos la parte superior del asa aferente y eferente en forma latero-lateral, y el segmento del asa eferente a la parte superior del nuevo canal común. Discusión: No existe un procedimiento estandar para la revisión de la cirugía primaria. Incluso, la cirugía Gold standard el bypass gástrico Roux-en-Y, es uno de los procedimientos con más fracasos (≤ 35%). Hemos desarrollado la revisión del Bypass Gástrico de Una Anastomosis (BAGUA) trabajando siempre en tejido sano no utilizado previamente. Conclusiones: Un escaso número de pacientes con BAGUA a medida para obesidad mórbida requerirá un procedimiento de rescate quirúrgico debido a exceso de peso o pérdida de peso insuficiente, o la re-ganancia del peso. Este nuevo procedimiento ha demostrado ser fácil y seguro, evitando las dificultades quirúrgicas de la revisión clásica a través del tejido cicatrizado.

Prevalencia de la enfermedad por reflujo gastroesofágico en pacientes con diabetes mellitus tipo 2 / Prevalence of gastroesophageal reflux disease in patients with type 2 diabetes mellitus

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Metabolic disorders of liver and iron in diabetic and non-diabetic patients BMI < 35 or > 35 before gastric bypass.

INTRODUCTION: The presence of abnormalities in the metabolic pathways of iron and liver functioning can produce insulin resistance or metabolic syndrome. Therefore, it is important to examine those alterations that may lead to the development of diseases. Nutritional status is another important factor that is intimately linked to diabetes and obesity. PATIENTS AND METHODS: We studied 131 patients (78 nondiabetic patients and 53 diabetic), 37 patients BMI ≤35 (3 BMI < 25, 18 BMI 25-29.9, 16 BMI 30-34.9) and 94 patients BMI ≥35 (81 BMI 35-49.9 and 13 BMI ≥50). Subjects underwent to laboratory studies related to liver functioning and iron metabolism. Nutritional status was also determined in our patients. RESULTS: Iron was altered 14% of patients BMI >35 and diabetics reached 3% to 25%. Vitamin B12 was low 4% of non-diabetics BMI > 35, and high in 6% of diabetics BMI < 35. The 6% of diabetics BMI < 35 had hyperbilirubinemia. Transaminases are elevated in patients BMI >35 but exacerbated on diabetics. GGT is raised 41% to 47% in BMI >35. ALP is elevated in 25% of diabetics. Total protein and serum albumin were altered in diabetics causing mild malnutrition. 90% of patients had normal nutrition and 10% mild malnutrition. CONCLUSIONS: The metabolisms Hepatic and iron are closely related to the onset of obesity and diabetes. If there is weight gain, cumulative metabolic risks rise. The presence of diabesity and increased duration of diabetes produce altered metabolism. Nutritional status is altered in obesity but is worse with the addition of diabetes.

Introducción: La presencia de anormalidades en las vías metabólicas del hierro y el funcionamiento del hígado pueden producir resistencia a la insulina o síndrome metabólico. Por lo tanto, es importante examinar esas alteraciones que pueden conducir al desarrollo de enfermedades. El estado nutricional es otro factor importante que está íntimamente ligada a la diabetes y la obesidad. Pacientes y métodos: Se estudiaron 131 pacientes (78 pacientes no diabéticos y 53 diabéticos), 37 pacientes IMC ≤35 (3 IMC < 25, 18 IMC 25-29,9, 16 IMC 30-34,9) y 94 pacientes IMC ≥35 (81 IMC 35-49,9 y 13 de IMC ≥50). Los sujetos fueron sometidos a estudios de laboratorio relacionadas con el funcionamiento del hígado y el metabolismo del hierro. Se determinó también el estado nutricional en nuestros pacientes. Resultados: El hierro estuvo alterado en 14% de los pacientes IMC >35 y los diabéticos alcanzaron 3% a 25%. La vitamina B12 fue baja en 4% de los no diabéticos IMC > 35, y alta en el 6% de los diabéticos IMC < 35. El 6% de los diabéticos IMC < 35 tenía hiperbilirrubinemia. Las transaminasas estuvieron elevadas en pacientes IMC > 35, pero exacerbados en los diabéticos. GGT se eleva del 41% al 47% en BMI > 35. ALP estuvo elevada en el 25% de los diabéticos. Las proteínas séricas totales y la albúmina estuvieron alterados en los diabéticos causando desnutrición leve. 90% de los pacientes tenían una nutrición normal y 10% desnutrición leve. Conclusiones: El metabolismo hepático y del hierro están estrechamente relacionadas con el inicio de la obesidad y la diabetes. Si hay un aumento de peso, los riesgos metabólicos acumulados se elevan. La presencia de la diabesidad y el aumento de la duración de la diabetes empeoran el metabolismo. El estado nutricional se altera en la obesidad, pero es peor con la adición de la diabetes.

Glycemic and lipid metabolic disorders in diabetic and non-diabetic patients bmi < 35 or > 35 before gastric bypass.

INTRODUCTION: Obesity and diabetes are diseases with high prevalence worldwide. There is currently no effective medical treatment for combat the weight gain. It is precursor of diseases such as diabetes or metabolic syndrome. It is necessary to know if weight gain has cumulative effects on the glycemic and lipid metabolism as precursors of complications or comorbidities. PATIENTS AND METHODS: We studied 131 patients (78 nondiabetic and 53 diabetic), 37 BMI ≤35 (3 BMI < 25, 18 BMI 25-29.9, 16 BMI 30-34.9) and 94 BMI ≥35 (81 BMI 35-49.9 and 13 BMI ≥50).We analyzed BMI, gender, diabetes and the time of evolution. Lipid profile, glucose, HbA1c and C-peptide evaluated after 12-hour fasting. RESULTS: Diabetic and diabese patients showed high triglycerides. Non-diabetics have impaired glucose (58% BMI < 35 and 36% BMI > 35). The 20% of non-diabetics BMI < 35 had high C-peptide, and 19% of BMI > 35 had high levels. The 5% of diabetics BMI < 35 had low Cpeptide and 36% of BMI > 35 had high levels. HbA1c was higher in 40% of non-diabetic patients BMI < 35 compared to 13% BMI > 35. CONCLUSIONS: Glucose and triglycerides increase with age and years of development of T2DM. Age of 51 and more, and men are more affected. The weight increase has cumulative effect by altering the metabolism favoring the onset of diabetes and comorbidities. Despite having intensive control treatment of diabetes, it continues its deleterious effects on patients through the years.

Introducción: La obesidad y la diabetes son enfermedades de alta prevalencia a nivel mundial. Actualmente no existe un tratamiento médico eficaz para combatir el aumento de peso. La obesidad es precursora de enfermedades tales como la diabetes o el síndrome metabólico. Es necesario saber si el aumento de peso tiene efectos acumulativos sobre el metabolismo de la glucemia y los lípidos como precursores de complicaciones o comorbilidades. Pacientes y métodos: Se estudiaron 131 pacientes (78 no diabéticos y 53 diabéticos), 37 IMC ≤35 (3 IMC < 25, 18 IMC 25-29,9, 16 IMC 30-34,9) y 94 IMC ≥35 (81 IMC 35- 49,9 y 13 de IMC ≥50). Se analizó el IMC, el género, la diabetes y su tiempo de evolución. El perfil lipídico, glucosa, HbA1c y el péptido C fueron evaluados después de un ayuno de 12 horas. Resultados: Los pacientes diabéticos y diabesos mostraron niveles altos de triglicéridos. Los pacientes no diabéticos tienen alteración de la glucosa (58% IMC 35). El 20% de los no diabéticos IMC 35 tenían niveles altos. El 5% de los diabéticos IMC < 35 tenía bajos niveles de péptido C y 36% de IMC > 35 tenían niveles altos. HbA1c fue mayor en 40% de pacientes no diabéticos IMC < 35 frente al 13% de IMC > 35. Conclusiones: La glucosa y los triglicéridos aumentan con la edad y los años de evolución de la DMT2. La edad de ≥51 años y los hombres son los más afectados. El aumento de peso tiene efecto acumulativo alterando el metabolismo favoreciendo la aparición de la diabetes y sus comorbilidades. A pesar de tener un tratamiento de control intensivo de la diabetes, esta continúa con sus efectos nocivos sobre los pacientes a través de los años.