Connecting Clinical Capacity and Intervention Sustainability in Resource-Variable Pediatric Oncology Centers in Latin America.

Clinical capacity for sustainability, or the clinical resources needed to sustain an evidence-based practice, represent proximal determinants that contribute to intervention sustainment. We examine the relationship between clinical capacity for sustainability and sustainment of PEWS, an evidence-based intervention to improve outcomes for pediatric oncology patients in resource-variable hospitals. We conducted a cross-sectional survey among Latin American pediatric oncology centers participating in Proyecto Escala de Valoración de Alerta Temprana (EVAT), an improvement collaborative to implement Pediatric Early Warning Systems (PEWS). Hospitals were eligible if they had completed PEWS implementation. Clinicians were eligible to participate if they were involved in PEWS implementation or used PEWS in clinical work. The Spanish language survey consisted of 56 close and open-ended questions about the respondent, hospital, participants' assessment of clinical capacity to sustain PEWS using the clinical sustainability assessment tool (CSAT), and perceptions about PEWS and its use as an intervention. Results were analyzed using a multi-level modeling approach to examine the relationship between individual, hospital, intervention, and clinical capacity determinants to PEWS sustainment. A total of 797 responses from 37 centers in 13 countries were included in the analysis. Eighty-seven percent of participants reported PEWS sustainment. After controlling for individual, hospital, and intervention factors, clinical capacity was significantly associated with PEWS sustainment (OR 3.27, p < .01). Marginal effects from the final model indicate that an increasing capacity score has a positive influence (11% for every additional CSAT point) of predicting PEWS sustainment. PEWS is a sustainable intervention and clinical capacity to sustain PEWS contributes meaningfully to PEWS sustainment.

Displasia septo-óptica (síndrome de De Morsier) con hipopituitarismo y sus múltiples complicaciones: reporte de un caso y revisión de literatura

Presentamos el caso de una paciente con displasia septo-óptica (SOD), también conocida como síndrome de De Morsier, un desorden congénito raro. Se caracteriza por una combinación de alteraciones: hipoplasia del nervio óptico, disfunción hipofisaria y anormalidades de la línea media. Presentamos el caso de una paciente de 37 años con síndrome de De Morsier que consulta por infertilidad. Asocia hipopituitarismo, con déficit de hormona de crecimiento e hipogonadismo hipogonadotrófico, diagnosticada a los 11 años, en contexto de hipocrecimiento e impuberismo. También presenta complicaciones asociadas a estos déficits, como infertilidad, síndrome metabólico y compromiso óseo. Un diagnóstico y tratamiento temprano puede prevenir la morbimortalidad asociada a este síndrome, pero no así la infertilidad. Sin embargo, es posible lograr el embarazo mediante inducción de la ovulación.

The study presents the case of a patient with septo-optic dysplasia (SOD), also known as de Morsier syndrome, which is a rare congenital disorder. It is characterized by a combination of abnormalities, including optic nerve hypoplasia, pituitary dysfunction, and midline abnormalities. We present the case of a 37-year-old female patient with De Morsier syndrome, who seeks medical attention due to infertility. She presents with hypopituitarism, characterized by growth hormone deficiency and hypogonadotropic hypogonadism, diagnosed at the age of 11 in the context of short stature and delayed puberty. The patient also exhibits complications associated with these deficits, such as infertility, metabolic syndrome, and skeletal compromise. Early diagnosis and treatment can prevent morbidity and mortality associated with this syndrome, but unfortunately, infertility remains unaffected. Nevertheless, achieving pregnancy is possible through ovulation induction.

A síndrome de De Morsier, é uma doença congênita rara, caracterizada por uma combinação de alterações: hipoplasia do nervo óptico, disfunção hipofisária e anomalias da linha média. Apresentamos o caso de uma paciente de 37 anos com displasia septo-óptica (SOD), também conhecida como síndrome de De Morsier que consultou por infertilidade. Associado à SOD detectou-se hipopituitarismo, com deficiência de hormônio do crescimento e hipogonadismo hipogonadotrófico diagnosticado aos 11 anos de idade em um contexto de hipocrescimento e impuberdade. Foram observadas também complicações associadas a esses déficits como infertilidade, síndrome metabólica e envolvimento ósseo. O diagnóstico e tratamento precoces podem prevenir a morbimortalidade associada a esta síndrome, mas não a infertilidade. No entanto, a gravidez é possível através da indução da ovulação.

Analysis of the Frequency and Correlated Factors of Midpalatal Suture Maturation Stages in Young Adults, Based on Cone Beam Computed Tomography Imaging.

BACKGROUND: The choice of whether to perform a palatal disjunction in constricted maxilla has traditionally been decided based on the age of the patients, although there are gradually increasing references to the fact that this is not a determining factor. The main goal of this study was to evaluate the frequency of the different stages of midpalatal suture maturation in a sample of young adults between 15 and 30 years of age. Other objectives also included analyzing the possible correlation the maturation stages could maintain with sex and age groups. METHODS: 142 Cone Beam Computed Tomography (CBCT) scans of young adults were performed. The images were divided into four age groups based on age ranges of 15-18, 19-22, 23-26, and 27-30 years. Each group consisted of 26, 41, 39, and 36 patients, respectively, which were classified using Angelieri's method. In addition, sex and age groups were considered as variables, and the possible correlation of the prevalence of each one, according to age and sex, was studied. RESULTS: the sample was classified into 4.9% stage B; 52.1% stage C; 27.5% stage D; and 15.5% stage E. In addition, no statistically significant correlation between sex and the maturation stages was found, but more advanced stages did appear to be related to the chronological age of the subjects. CONCLUSIONS: The frequency of maturational stages where the suture is shown to be consolidated did not appear to be as high as expected; therefore, the idea of rejecting transverse plane treatment in a conventional manner in an out-of-growth patient should be discarded.

Model for regional collaboration: Successful strategy to implement a pediatric early warning system in 36 pediatric oncology centers in Latin America.

BACKGROUND: Pediatric early warning systems (PEWS) aid in the early identification of deterioration in hospitalized children with cancer; however, they are under-used in resource-limited settings. The authors use the knowledge-to-action framework to describe the implementation strategy for Proyecto Escala de Valoracion de Alerta Temprana (EVAT), a multicenter quality-improvement collaborative, to scale-up PEWS in pediatric oncology centers in Latin America. METHODS: Proyecto EVAT mentored participating centers through an adaptable implementation strategy to: (1) monitor clinical deterioration in children with cancer, (2) contextually adapt PEWS, (3) assess barriers to using PEWS, (4) pilot and implement PEWS, (5) monitor the use of PEWS, (6) evaluate outcomes, and (7) sustain PEWS. The implementation outcomes assessed included the quality of PEWS use, the time required for implementation, and global program impact. RESULTS: From April 2017 to October 2021, 36 diverse Proyecto EVAT hospitals from 13 countries in Latin America collectively managing more than 4100 annual new pediatric cancer diagnoses successfully implemented PEWS. The time to complete all program phases varied among centers, averaging 7 months (range, 3-13 months) from PEWS pilot to implementation completion. All centers ultimately implemented PEWS and maintained high-quality PEWS use for up to 18 months after implementation. Across the 36 centers, more than 11,100 clinicians were trained in PEWS, and more than 41,000 pediatric hospital admissions had PEWS used in their care. CONCLUSIONS: Evidence-based interventions like PEWS can be successfully scaled-up regionally basis using a systematic approach that includes a collaborative network, an adaptable implementation strategy, and regional mentorship. Lessons learned can guide future programs to promote the widespread adoption of effective interventions and reduce global disparities in childhood cancer outcomes. LAY SUMMARY: Pediatric early warning systems (PEWS) are clinical tools used to identify deterioration in hospitalized children with cancer; however, implementation challenges limit their use in resource-limited settings. Proyecto EVAT is a multicenter quality-improvement collaborative to implement PEWS in 36 pediatric oncology centers in Latin America. This is the first multicenter, multinational study reporting a successful implementation strategy (Proyecto EVAT) to regionally scale-up PEWS. The lessons learned from Proyecto EVAT can inform future programs to promote the adoption of clinical interventions to globally improve childhood cancer outcomes.

Skeletal, Dentoalveolar and Dental Changes after "Mini-Screw Assisted Rapid Palatal Expansion" Evaluated with Cone Beam Computed Tomography.

The purpose of this study was to evaluate skeletal, dentoalveolar and dental changes after Mini-screw Assisted Rapid Palatal Expansion (MARPE) using tooth bone-borne expanders in adolescent patients after analyzing different craniofacial references by Cone beam computed tomography (CBCT) and digital model analysis. This prospective, non-controlled intervention study was conducted on fifteen subjects (mean age 17 ± 4 years) with transversal maxillary deficiency. Pre (T1) and post-expansion (T2) CBCTs and casts were taken to evaluate changes at the premolars and first molar areas. To compare means between two times, paired samples t- or Wilcoxon test were used following criteria. Significant skeletal changes were found after treatment for Nasal width and Maxillary width with means of 2.1 (1.1) mm and 2.5 (1.6) mm (p < 0.00005). Midpalatal suture showed a tendency of parallel suture opening in the axial and coronal view. For dentoalveolar changes, a significant but small buccal bone thickness (BBT) reduction was observed in all teeth with a mean reduction of 0.3 mm for the right and left sides, especially for the distobuccal root of the first molar on the left side (DBBTL1M) [IC95%: (−0.6; −0.2); p = 0.001] with 0.4 (0.4) mm. However, a significant augmentation was observed for the palatal bone thickness (PBT) on the left side. The buccal alveolar crest (BACL) and dental inclination (DI) showed no significant changes after treatment in all the evaluated teeth. MARPE using tooth bone-borne appliances can achieve successful skeletal transverse maxillary expansion in adolescent patients, observing small dentoalveolar changes as buccal bone thickness (BBT) reduction, which was not clinically detectable. Most maxillary expansions derived from skeletal expansion, keeping the alveolar bone almost intact with minor buccal dental tipping.

Knowledge of First Aid Measures in Dental Trauma: A Survey of Teachers in the Province of Seville, Spain.

The high incidence of childhood dental trauma requires childcare professionals to have basic notions of dental first aid. The aim of this study is to assess the level of knowledge and aptitude (defined as the ability to operate competently in a given activity) of early childhood, primary, and/or secondary education teachers from Seville (Spain) referred to first aid measures in dental trauma. A descriptive study was conducted. The study sample consisted of 442 teachers (334 women and 108 men) coinciding proportionately with the study target population in terms of gender distribution, type of center, and teaching level. A specifically designed questionnaire was used. Most of the participants (88.5%, n = 391) exhibited poor knowledge and aptitude, 11.5% (n = 51) showed a medium level of knowledge and aptitude, and none were categorized as having a high knowledge and aptitude. As a conclusion, teachers in the province of Seville (Spain) showed marked deficiencies in their level of knowledge and aptitude referred to the adoption of first aid measures in dental trauma among their pupils.

Carcinoma adrenal virilizante en una adolescente: reporte de caso / Virilizing adrenal carcinoma in an adolescent: case report

Los tumores suprarrenales virilizante son infrecuentes y representan 5-6% de los tumores de esas glándulas1. Pueden secretar diferentes andrógenos como dehidroepiandrosterona sulfato (DHEAS), androstenediona y testosterona. Las características clínicas dependen de la edad de presentación; en niños pueden determinar pubertad precoz y en mujeres en edad fértil ocasionar hirsutismo, amenorrea o ciclos oligomenorreicos y diversos grados de virilización2. Los carcinomas adrenocorticales son tumores raros y la incidencia es aproximadamente uno a dos por millón de habitantes/año3,4. Los exámenes de imagen como la tomografía o la resonancia confirman el origen suprarrenal, valoran la presencia de metástasis y definen la conducta terapéutica5. La presentación inicial en pacientes pediátricos mayoritariamente es con virilización6 y aproximadamente el 50% de los pacientes adultos con carcinoma adrenal tienen un estadio de la enfermedad relativamente avanzado7. El tratamiento de elección es la cirugía y sigue siendo la mejor esperanza para la supervivencia a largo plazo8. El pronóstico habitual para el carcinoma adrenocortical es generalmente malo con una supervivencia global a 5 años de 20 a 25%5 en adultos, pero en niños y adolescentes la supervivencia puede llegar al 100%9. Se presenta el caso de una paciente con fenotipo totalmente masculino con diagnóstico de carcinoma adrenal virilizante que comienza en la infancia y se diagnostica en la adolescencia.

Virilizing adrenal tumors are uncommon and represent 5-6% on tumors of these glands1. They can secrete different androgens such as dehydroepiandrosterone sulfate (DHEAS), androstenedione, and testosterone. Clinical features depend on the age of presentation; in children they can determine precocious puberty and in women of childbearing age cause hirsutism, amenorrhea or oligomenorrheic cycles and various degrees of virilization2. Diagnosis consists of clinical evidence of hyperandrogenism, accompanied by an increase in androgens in the blood, especially DHEAS, whose origin is mainly adrenal. Adrenocortical carcinomas are rare and the incidence is approximately one to two per million inhabitants/year3,4. Imaging tests such as tomography or resonance confirm the adrenal origin, assess the presence of metastases and define the therapeutic approach5. In initial presentation in most pediatric patients is with virilization6 and approximately 50% adult's patients with adrenal carcinoma have a relatively advanced stage of the disease7. The treatment of choice is surgery and is the best hope for long-term survival. The usual prognosis for adrenocortical carcinoma is generally poor with a 5-year overall survival of 20 to 25%5 in adults, but in children and adolescent's survival can reach 100%9. We present the case of a patient with a totally male phenotype diagnosed with virilizing adrenal carcinoma that begins in childhood and is diagnosed in adolescence.

Incidencia de hipocalcemia e hipoparatiroidismo en cirugías de cuello / Hypocalcaemia and hypoparathyroidism' incidence in neck surgeries

INTRODUCCIÓN: el hipoparatiroidismo es la alteración causada por hipofunción de las glándulas paratiroides y la causa más común es la posquirúrgica. OBJETIVO: conocer la incidencia de hipocalcemia dentro de las 72 horas del postoperatorio y de hipoparatiroidismo permanente de tiroidectomías en nueve años. SUJETOS Y MÉTODO: estudio observacional, descriptivo y retrospectivo de pacientes con tiroidectomías entre enero de 2011 y diciembre de 2019 en el Hospital de Clínicas. Se dividió la muestra por grupos etarios, se consideró hipocalcemia a valores ≤8,5 mg/dl e hipoparatiroidismo permanente cuando persistían por lo menos un año luego de cirugía. RESULTADOS: fueron 202 pacientes, 182 mujeres y 20 hombres, media de edad ± ES para mujeres 47.3±1.2 años y para hombres 55.1±3.4. El 61,5% presentó hipocalcemia en las primeras 72 horas del postoperatorio: 60,2% de mujeres y 71,4% de hombres (p=0.42). El 79% fueron hipocalcemias asintomáticas, 7,5% tuvo síntomas y 13,5% sin datos. El signo de Trousseau fue negativo 68% y positivo en 9%. Respecto a la patología hubo 107 resultados benignos, 94 malignos. CONCLUSIONES: el 90% fueron mujeres, 6 de cada 10 presentaron hipocalcemia en las primeras 72hs, en la gran mayoría fueron asintomáticas y tuvieron signo de Trousseau negativo. No hubo correlación entre hipocalcemia con edad, sexo, duración o tiempo de la cirugía, ni resultado de patología. La incidencia de hipoparatiroidismo transitorio fue 75,7% y permanente 7,3%. Cuando no hubo hipoparatiroidismo transitorio tampoco hubo hipoparatiroidismo permanente.

INTRODUCTION: hypoparathyroidism is the alteration caused by hypofunction of the parathyroid glands and the most common cause is post-surgery. OBJECTIVE: to know the incidence of hypocalcaemia within 72 hours of the postoperative period and of permanent hypoparathyroidism of thyroidectomies in nine years. SUBJECTS AND METHOD: observational, descriptive and retrospective study of patients with thyroidectomies between January 2011 and December 2019 at Clinical's Hospital. The sample was divided by age groups, hypocalcemia was considered at values ≤8.5 mg/dl and permanent hypoparathyroidism when they persisted for at least one year after surgery. RESULTS: there were 202 patients, 182 women and 20 men, mean age ± SE for women 47.3±1.2 years and for men 55.1±3.4. 61.5% presented hypocalcaemia in the first 72 hours after surgery: 60.2% of women and 71.4% of men (p=0.42). 79% were asymptomatic hypocalcemia, 7.5% had symptoms and 13.5% without data. Trousseau's sign was negative in 68% and positive in 9%. Regarding the pathology, there were 107 benign results, 94 malignant. CONCLUSIONS: 90% were women, 6 out of 10 presented hypocalcemia in the first 72 hours, the vast majority were asymptomatic and had a negative Trousseau sign. There was no correlation between hypocalcaemia with age, sex, duration or time of surgery, or pathology result. The incidence of transient hypoparathyroidism was 75.7% and permanent 7.3%. When there was no transient hypoparathyroidism, there was also no permanent hypoparathyroidism.

Efficacy and predictability of maxillary and mandibular expansion with the Invisalign® system.

BACKGROUND: The purpose of this study is to evaluate the efficacy and predictability of upper and lower orthodontic expansion with the Invisalign® system. MATERIAL AND METHODS: From a sample of 167 patients; 64 upper and 51 lower arches were randomly selected from patients who had been treated with plastic orthodontics (Invisalign® aligners, SmartTrack® material). Digital models were extracted at the beginning (ModT1) and at the end of treatment (ModT2) as well as the final ClinCheck® (CkT2). The canine, premolar and molar width was measured at the gingival and cuspid level of both arches, as well as the inclination of the upper first molar. Likewise, both arches were divided regarding the planned expansion at the level of the first molar into mild, moderate and severe. RESULTS: The efficacy of expansion in the upper and lower arches showed a statistically significant difference (p<0.00005). During the measurements of predictability, around 98-100% was achieved at the coronal level and between 85-90% at the gingival level. Analyzing predictability regarding to the magnitude of expansion, superior and inferior moderate expansion, both gingival and cuspid, presented higher values. CONCLUSIONS: The Invisalign® system aligners (SmartTrack® material), proved to be a positive alternative for expansion movement offering high degree of predictability, both in the upper and lower arches. As a result, the most predictable level of expansion was moderate, having being the lower arch more foreseeable at the gingival level than the upper arch. Key words:Predictability, Efficacy, Expansion, Aligner, Invisalign®.

Displasia fibrosa poliostótica - síndrome de McCune-Albright: reporte de un caso / Polyostotic fibrous dysplasia - McCune-Albright syndrome: a case report / Displasia fibrosa poliostótica - síndrome de McCune-Albright: relato de um caso

Resumen: Introducción: la displasia fibrosa poliostótica es una patología de muy baja prevalencia, por lo que su diagnóstico pasa desapercibido en la mayoría de los casos. Cuando se asocia a endocrinopatías o a lesiones cutáneas hiperpigmentadas corresponde al síndrome de McCune-Albright. Caso clínico: escolar de 8 años, sexo femenino, que presentó una fractura patológica de fémur izquierdo traumática, en la cual se diagnosticó una displasia fibrosa poliostótica. Por presentarse acompañada de pubertad precoz periférica configura el denominado síndrome de McCune-Albright. El control y tratamiento fue multidisciplinario. El equipo de traumatología realizó osteosíntesis con placa y tornillos de la lesión ósea con evolución a la consolidación en plazos habituales (tres meses). A los seis meses de seguimiento la niña se encuentra sin dolor y sin repercusiones funcionales para la vida diaria. Del punto de vista endocrinológico se realizó tratamiento de su pubertad precoz con inhibidores de la aromatasa con el fin de mejorar su talla final y evitar repercusiones psicológicas y emocionales. En este estudio se analizan características de esta patología y su pronóstico vital y funcional.

Summary: Introduction: polyostotic fibrous dysplasia is a low prevalence disease, and for this reason, it often goes undetected. When associated to endocrinopathies and/or hyperpigmented skin lesions we speak about McCune Albright syndrome. Clinical case: eight-year old school girl who presented pathological fracture of the left femur, which was diagnosed as polyostotic fibrous dysplasia. As it was accompanied by peripheral precocious puberty it constituted an indicative clinical picture of the so-called McCune Albright. Control and treatment were multidisciplinary. The traumatology team performed osteosynthesis with plaques and nails to fix the bone lesion, and evolution consolidated in a regular time frame (3 months). Upon six months follow-up, the girl has no pain and presents no functional repercussion in daily life. From the endocrinological perspective, the girl received precocious puberty treatment with aromatase inhibitors with the purpose of improving her final size and avoid psychological and emotional implications. The study presents the characteristics of this condition, as well as its vital and functional prognosis.

Resumo: Introdução: a displasia fibrosa poliostótica é uma doença de prevalência muito baixa, por isso seu diagnóstico passa despercebido na maioria dos casos. Quando associada a endocrinopatias e / ou lesões cutâneas hiperpigmentadas, corresponde à síndrome de McCune Albright. Caso clínico: estudante do sexo feminino, 8 anos, com quadro de fratura patológica traumática do fêmur esquerdo, com diagnóstico de displasia fibrosa poliostótica. Por estar acompanhada de puberdade precoce periférica, configura a chamada síndrome de McCune Albright. O controle e o tratamento foram multidisciplinares. A equipe de trauma realizou osteossíntese de placa e parafuso da lesão óssea com progressão à consolidação nos prazos usuais (3 meses). Aos 6 meses de seguimento, a paciente não apresenta dor e tampouco repercussões funcionais no dia a dia. Do ponto de vista endocrinológico, sua puberdade precoce foi tratada com inibidores da aromatase para melhorar sua altura final e evitar repercussões psicológicas e emocionais. Este estudo analisa as características desta patologia, seu prognóstico vital e funcional.

Lung ultrasound in the follow-up of primary ciliary dyskinesia.

Primary ciliary dyskinesia (PCD) is an airways ciliary defect, making them unable to beat normally. Hence, there is an increase in the incidence of respiratory recurrent infections leading to multiple atelectasis from different lung lobes during the first months of life repeat chest X-ray (CXR) controls with increase of radiation exposure in this younger population. We report the lung ultrasound follow-up of two newborn diagnosed with PCD. The illness in these cases was suspected during the first days of life due to worsening of respiratory distress on previous healthy newborns. Both patients cases show the ability of bedside lung ultrasound (LUS) to confirm clinical suspicion of atelectasis or pneumonia. Using LUS for the diagnosis and follow-up may help in avoiding routine CXR, thus reducing the huge amount of ionizing radiation in these patients.

Vitamina D, magnesio y parámetros seleccionados de laboratorio en hombres uruguayos / Vitamin D, magnesium, and selected laboratory parameters in Uruguayan men / Vitamina D, magnésio e parâmetros selecionados de laboratório em homens uruguaios

Resumen: Introducción: los niveles de vitamina D (VD) plasmática se han investigado sobre todo en mujeres, no obstante también son relevantes en hombres, y no sólo en relación al estado de salud ósea. Un estudio previo realizado hace dos décadas en una pequeña muestra de hombres y mujeres uruguayos reveló serias deficiencias de VD. Por otra parte, el magnesio posee importantes efectos no solo relacionados a los niveles de VD, también afecta el hueso directa e indirectamente. Objetivos: analizar posibles interrelaciones entre valores de VD plasmática, testosterona plasmática, densitometría ósea, y otros parámetros en una población de jóvenes varones uruguayos. Métodos: durante julio-agosto de 2015, cien hombres uruguayos afiliados al sistema prepago de salud fueron invitados a participar en nuestra Unidad de Metabolismo Fosfocálcico, para ser estudiados con técnicas de antropometría, laboratorio y densitométricas. Los datos colectados fueron analizados estadísticamente. Resultados: los hombres estudiados mostraron bajos niveles de VD plasmática (96% insuficientes-deficientes), que no mostraron correlaciones significativas con ninguno de los parámetros estudiados. El magnesio plasmático se correlacionó significativa e inversamente con los z-scores densitométricos, lo que fue más intenso en hombres con sobrepeso y con VD ≥15 ng/ml. Conclusiones: a pesar de lo pequeño de la muestra, los resultados confirman la presencia de bajos niveles de VD en hombres aparentemente saludables. Los hallazgos dan razones para pensar en posibles recomendaciones para mejorar el espectro preventivo enfocado en osteoporosis y cáncer colorrectal.

Summary: Background: serum vitamin D (VD) levels have been mainly studied in women, but they are relevant also among men, not only regarding bone health status. A previous small-size study performed two decades ago in Uruguayan women and men revealed serious deficiencies of VD. On the other hand, magnesium has important effects not only related to vitamin D levels but directly and indirectly affect bone. Purpose: to analyze possible interrelationships among values of serum VD, magnesium, testosterone, bone densitometry and other parameters in young Uruguayan male population. Methods: during July-August 2015, one hundred Uruguayan men affiliated to the prepaid healthcare system, invited to participate by our Unit of Bone Metabolism, were studied with anthropometry, laboratory and, densitometry techniques. Collected data were statistically analyzed. Results: the studied men showed low serum VD levels (96% insufficient-deficient), which did not show significant correlations with any of the studied parameters. Serum magnesium was significantly and inversely correlated with densitometric z-scores, even stronger among men with overweight and with VD≥15 ng/ml. Conclusions: despite the sample size, results confirm the presence of low serum VD levels in apparently healthy men. Findings give reasons to think about possible recommendations to improve the preventive scope regarding osteoporosis and colorectal cancer.

Resumo: Introdução: os níveis plasmáticos de vitamina D (DV) têm sido investigados principalmente em mulheres, porém também são relevantes em homens, e não apenas em relação à saúde óssea. Um estudo anterior realizado há duas décadas em uma pequena amostra de homens e mulheres uruguaios revelou graves deficiências de VD. Por outro lado, o magnésio tem efeitos importantes não apenas relacionados aos níveis de VD, mas também afeta o osso direta e indiretamente. Objetivos: analisar as possíveis relações entre os valores plasmáticos de VD, testosterona plasmática, densitometria óssea e outros parâmetros em uma população de jovens uruguaios. Métodos: durante o período de julho a agosto de 2015, cem uruguaios filiados ao sistema de saúde pré-pago foram convidados a participar de nossa Unidade de Metabolismo Fosfocálcico, para serem estudados com técnicas antropométricas, laboratoriais e densitométricas. Os dados coletados foram analisados estatisticamente. Resultados: os homens estudados apresentaram baixos níveis de VD plasmático (96% insuficiente-deficiente), que não apresentou correlações significativas com nenhum dos parâmetros estudados. O magnésio plasmático foi significativa e inversamente correlacionado com os escores z densitométricos, que foi mais intenso em homens com sobrepeso e VR ≥15 ng / ml. Conclusões: porém, na pequena amostra, os resultados confirmam a presença de baixos níveis de VD em homens aparentemente saudáveis. Estes achados propõem pensar sobre possíveis recomendações para melhorar o espectro preventivo com foco na osteoporose e no câncer colorretal.

Caracterización de pacientes con microcarcinoma papilar de tiroides en el Hospital de Clínicas (UDELAR) en los últimos 10 años / Characterization of patients with papillary thyroid microcarcinoma at the Clinicas University Hospital (UDELAR) in the last 10 years / Caracterização de pacientes com microcarcinoma papilar de tireoide no Hospital de Clínicas (UDELAR) nos últimos 10 anos

Resumen: Introducción: el microcarcinoma papilar tiroideo (MCPT) es un tumor <1 cm, indolente y con diagnóstico incidental o asintomático. Su incidencia aumentó últimamente por mayor detección ecográfica de nódulos no palpables, pero la mortalidad se mantiene estable, con elevada sobrevida a largo plazo. Objetivo: caracterizar los pacientes con MCPT en la clínica de Endocrinología y Metabolismo del Hospital de Clínicas en la década 2008-2018. Materiales y métodos: estudio observacional, transversal, retrospectivo y analítico. Se revisaron historias de archivo y policlínica de pacientes que concurrieron a nuestro servicio desde junio/2008 a junio/2018. Se recabó el número de pacientes atendidos en el hospital en 1978-2008 para estimar incidencia y casuística anual. Las asociaciones entre variables y de tendencias se analizaron estadísticamente. Resultados: de 193 pacientes con carcinoma diferenciado de tiroides, 42 (22%) tuvieron MCPT. La incidencia hospitalaria de MCPT tendió a aumentar en los últimos 40 años (media = 4,2 casos/año); 88% fueron mujeres. El 69% de los diagnósticos fue por punción aspiración de aguja fina (PAAF) de un nódulo tiroideo, siendo 57% unifocales y 43% multifocales. Hubo asociación significativa entre multifocalidad e invasión capsular. Un 84% no tuvo metástasis ganglionares. En 55% de los casos se realizó radioyodo (RY) postcirugía. Conclusiones: aumentó la incidencia de MCPT, mayormente en mujeres. El diagnóstico prequirúrgico se hizo fundamentalmente por PAAF de nódulos tiroideos. La invasión capsular se asoció a multifocalidad. Un 16% tuvo metástasis ganglionares al diagnóstico. En la mayoría se realizó tiroidectomía total y 55% RY.

Abstract: Introduction: papillary thyroid microcarcima (PTMC) is a tumour <1 cm in size, indolent and with incidental or asymptomatic diagnostic. Recently, the incidence of PTMC increased as a result of higher ultrasound detection of nonpalpable nodes, although mortality rates remain stable, with high survival in the long-term. Objective: to characterize patients with PTMC at the Endocrinology and Metabolism Department of the Clinicas University Hospital in the 2008-2018 decade. Method: observational, transversal, retrospective and analytical study. Medical records filed and policlinic records of patients who were seen in our service since June, 2008 and June, 2018 were reviewed. The number of patients assisted in the hospital between 1978 and 2008 was found, to estimate incidence and annual casuistic. Statistical analysis of variables and tendencies was performed. Results: 42 (22%) out of 139 patients with poorly differentiated thyroid carcinoma (PDTC) had papillary thyroid microcarcinoma. In the last 40 years, hospital incidence of PTMC has increased (average = 4,2 cases/year), 88% of which were female patients. 69% of diagnostics were done by thyroid fine-needle aspirate cytology (FNAC); 57% were single focal and 43% multifocal. There was a significant association between multifocality and capsule invasion. 84% of cases did not evidence lymph node metastases. In 55% of cases postoperative radioactive iodine therapy was applied. Conclusions: the incidence of PTMC increased, mainly in women. Diagnosis prior to surgery was mainly done by thyroid FNAC. Capsular invasion was associated to multifocality. 16% evidence lymph node metastases upon diagnosis. Complete thyroidectomy was done in most cases, followed by radioactive iodine therapy un 55% of cases.

Resumo: Introdução: o microcarcinoma papilar de tireoide (MCPT) é um tumor <1 cm, indolente e com diagnóstico incidental ou assintomático. Sua incidência aumentou recentemente devido à maior detecção ultrassonográfica de nódulos não palpáveis, mas a mortalidade permanece estável, com alta sobrevida em longo prazo. Objetivo: caracterizar os pacientes com MCPT no ambulatório de Endocrinologia e Metabolismo do Hospital de Clínicas na década de 2008-2018. Materiais e métodos: estudo observacional, transversal, retrospectivo e analítico. Os prontuários de pacientes, históricos e atuais de pacientes foram atendidos no período junho 2008 - junho 2018 foram revisados. O número de pacientes tratados no hospital em 1978-2008 foi coletado para estimar a incidência e a casuística anual. As associações entre variáveis, e tendências foram analisadas estatisticamente. Resultados: de 193 pacientes com carcinoma diferenciado de tireoide, 42 (22%) tinham MCPT. A incidência hospitalar de MCPT mostrou uma tendência crescente nos últimos 40 anos (média = 4,2 casos/ano); 88% eram mulheres. 69% dos diagnósticos foram realizados por punção aspirativa por agulha fina (PAAF) de nódulo tireoidiano, sendo 57% unifocal e 43% multifocal. Houve uma associação significativa entre multifocalidade e invasão capsular. 84% não apresentavam metástases em linfonodos. O radioiodo pós-operatório (RY) foi realizado em 55% dos casos. Conclusões: a incidência de MCPT aumentou, principalmente em mulheres. O diagnóstico pré-cirúrgico foi feito principalmente pela PAAF de nódulos tireoidianos. A invasão capsular foi associada à multifocalidade. 16% tinham metástases linfonodais no momento do diagnóstico. Realizou-se tireoidectomia total na maioria dos pacientes e 55% foi submetida a RY.

Regresión de tumor pardo en adenoma paratiroideo / Brown tumor regression in parathyroid adenoma

No disponible

Effect of prednisolone therapy on serum levels of 1,2-O-dilauryl-rac-glycero glutaric acid-(6'-methylresorufin) ester lipase in dogs.

BACKGROUND: Activity of 1,2-O-dilauryl-rac-glycero glutaric acid-(6'-methylresorufin) ester (DGGR) lipase in serum shows good agreement with pancreatic lipase (cPL) in dogs. Although prednisolone therapy does not seem to affect serum cPL concentration, its influence on DGGR lipase is unclear. OBJECTIVES: The aim of the study was to evaluate the effect of prednisolone therapy on DGGR lipase serum activity in dogs. ANIMALS: Thirty-four dogs were used, of which 17 dogs received prednisolone (study group) and 17 healthy dogs did not receive treatment. METHODS: A prospective cohort study measured DGGR lipase activity in both groups at 3 time points: T0, T1, and T2, corresponding to days 0, 7-10, and 21-30, respectively. Dogs from study group presented a medical reason that justified the use of prednisolone for at least 3 weeks. Initial prednisolone dose was .5-2.0 mg/kg/day PO with a reduction at T1 to a final dose that was maintained until T2. DGGR lipase activity >160 U/L was defined as clinically relevant. RESULTS: In the study group, DGGR lipase activity increased significantly from T0 to T1 (P = .02) and decreased significantly from T1 to T2 (P = .02). Median DGGR activity at each time point (T0, T1, and T2) was 24.74 (14.45-31.48), 36.82 (23.8-80.16), and 29.52 (15.91-48.48) U/L, respectively. In the control group, no significant changes were observed over time (P = .93). The DGGR lipase activity and prednisolone doses were not correlated for both T0-T1 (rs = .371, P = .14) and T1-T2 (rs = 0.390, P = .12). CONCLUSION AND CLINICAL IMPORTANCE: DGGR lipase activity was affected by prednisolone administered orally in dogs. However, this variation was not clinically important as values remained below the relevant upper limit.