FACTORS ASSOCIATED WITH EXTREME MATERNAL MORBIDITY IN A COHORT OF PREGNANT WOMEN IN A CALI EAPB 2019-2020 / FACTORES ASOCIADOS A LA MORBILIDAD MATERNA EXTREMA EN UNA COHORTE DE GESTANTES DE UNA EAPB CALI 2019-2020

Introduction: Extreme maternal morbidity (EMM) is an event of interest in public health that has an important impact when evaluating health services, since timely and quality care in a woman with a severe obstetric complication can prevent a fatal outcome. In an EAPB in the city of Cali during the 2019-2020 period, a need was evidenced to determine the behavior of the factors mostly associated with extreme maternal morbidity, this being a relevant study to support decision-making. Methodology: it is a type of observational analytical retrospective cohort study, we worked with a census of pregnant women registered in the insurer's nominal follow-up matrix, which is fed from various sources such as the single database of affiliates, SIVIGILA, RIPS among others, a characterization of the sociodemographic, clinical and health care factors was carried out by means of absolute and relative frequencies, later they were crossed in contingency tables to determine association by means of the chi square test and a regression model was carried out. binomial log to establish the factors that best explain EMM. Results: most of the pregnant women were between 18 and 35 years old, from the subsidized regime, from the urban area, with informal work, educational level of basic secondary, with a stable partner (married or in a free union), non-ethnic, (No perceived as indigenous, ROM or Afro-Colombian, were in their second or third pregnancy period, covered by IVE counseling and the psychoprophylactic course and began their prenatal care in the first trimester, and an incidence of 3,2% of EMM was estimated. Conclusions: the risk of EMM was higher in pregnant women without IVE advice, psychoprophylactic course, ultrasound, nutrition consultation, gynecology, iron sulfate, calcium or folic acid; also in adolescents, in those over 36 years of age, from rural areas, without a stable partner, ethnic, vulnerable population, primiparous, with a history of abortion, with weight/height alterations, with high obstetric risk, with Dx of HIV or gestational syphilis and with late start of prenatal care.

Introducción: La morbilidad materna extrema es un evento de interés en salud pública que tiene un impacto importante al evaluar los servicios de salud ya que una atención oportuna y de calidad en una mujer con una complicación obstétrica severa puede prevenir un desenlace fatal. En una EAPB en la ciudad de Cali durante el periodo 2019-2020 se evidencio una necesidad referente a determinar cuál es el comportamiento de los factores mayormente asociados a la morbilidad materna extrema, siendo este un estudio relevante para apoyar la toma de decisiones. Metodología: es un tipo de estudio observacional analítico de cohorte retrospectiva, se trabajó con un censo de las gestantes registradas en la matriz de seguimiento nominal de la aseguradora, que se alimenta de diversas fuentes como la base de datos única de afiliados, SIVIGILA, RIPS entre otras, se realizó una caracterización de los factores sociodemográficos, clínicos y de atención en salud  por medio de frecuencias absolutas y relativas, posteriormente se cruzaron en tablas de contingencias para determinar asociación por medio de la prueba chi cuadrado y se realizó un modelo de regresión log binomial para establecer los factores que mejor explican la Morbilidad Materna Extrema (MME). Resultados: en su mayoría las gestantes tenían entre 18 y 35 años, del régimen subsidiado, de la zona urbana, con trabajo informal, nivel educativo de básica secundaria, con pareja estable (casadas o en unión libre), no étnica, (No se perciben como indígena, ROM o afrocolombiana, cursaban su segundo o tercer periodo de gestación, con cobertura de asesoría de IVE y del curso psicoprofiláctico y iniciaron su control prenatal en el primer trimestre y se estimó una incidencia de 3,2% de MME. Conclusiones:  el riesgo de MME fue superior gestantes sin asesoría de IVE, curso psicoprofiláctico, ecografía, consulta de nutrición, ginecología, sulfato ferros, calcio o ácido fólico; además en adolescentes, en mayores de 36 años, de la zona rural, sin pareja estable, con pertenencia étnica, de población vulnerable, primigestantes, con antecedente de aborto, con alteraciones peso/talla, con alto riesgo obstétrico, con Dx de VIH o sífilis gestacional y con inicio tardío del control prenatal.

Rare ocular disorder of the optic disc resulting from a defect on the development of the neuroectoderm: morning glory disc anomaly / Trastorno ocular infrecuente del disco óptico resultante de un defecto en el desarrollo del neuroectodermo: anomalía de de morning glory

Introducción: Se describen los signos clínicos de la anomalía de Morning Glory en una paciente femenina. Aunque esta anomalía es de baja prevalencia, la reportamos por la importancia del diagnóstico temprano debido a la asociación con alteraciones vasculares del sistema nervioso central que eventualmente son tratables. Objetivo: describir esta anomalía del disco óptico en una paciente atendida en el Hospital de San José, Bogotá. Métodos: búsqueda en la literatura de las manifestaciones clínicas, incidencia y patologías asociadas. Presentación del caso: mujer que consulta por pobre agudeza visual del ojo derecho cuya fundoscopia reveló una excavación cónica con disco óptico displásico y tejido glial alrededor de la pupila en 360 grados, pigmento retinocoroideo y aumento de los vasos retinianos que emergen del disco en distribución radial.

Introduction: We describe the clinical findings of morning glory optic disc anomaly, in a female patient. Despite the low prevalence of this optic disc malformation and although it has no specific treatment, we report this case, for timely diagnosis is important for associated vascular and central nervous system abnormalities may eventually be treated. Objective: to report this case of morning glory optic disc anomaly in a patient seen at Hospital de San José, Bogotá. Study design: case report. Methods: A search in the literature on the incidence, ophthalmological manifestations, clinical presentation and concomitant pathologies of morning glory optic disc anomaly, was conducted. Case report: female patient that consulted for decreased visual acuity in the right eye. Right eye fundus examination revealed a funnel-shaped excavation, dysplastic optic disc and glial tissue covering the peripapillary region circumferentially (360°), chorioretinal pigmentary changes, and increased number of retinal vessels emerging from the optical disc in a radial pattern.

Índice biespectral y tasa de supresión tras parada cardiaca: ¿son útiles para individualizar planes de escalada terapéutica? / Bispectral index and suppression ratio after cardiac arrest: are they useful as bedside tools for rational treatment escalation plans?

Introducción y objetivos: La disfunción miocárdica contribuye a la mortalidad precoz (24-72 horas) de los supervivientes de parada cardiaca (PC). Actualmente, la decisión de implantar un dispositivo de soporte circulatorio en este contexto se toma con información limitada acerca del potencial de recuperación neurológica (PRN) del paciente, lo que en muchas ocasiones termina en infratratamiento. Por tanto, requerimos de herramientas accesibles y fiables que añadan información sobre el PRN y ayuden a establecer planes individualizados de escalada terapéutica. Métodos: Se recogieron valores de índice biespectral (BIS) y tasa de supresión (TS) en supervivientes de una PC sometidos a control de la temperatura corporal. La función neurológica se evaluó con la escala Cerebral Performance Category (CPC). Resultados: Se incluyeron 340 pacientes. En la primera evaluación neurológica completa, 211 (62,1%) alcanzaron buen pronóstico (CPC 1-2). Los valores de BIS fueron significativamente mayores y los de TS menores, en pacientes con CPC 1-2. Un BIS promedio> 26 en las primeras 12 horas predijo buena evolución neurológica (sensibilidad 89,5%; especificidad 75,8%; AUC=0,869), mientras que una TS promedio> 24 en las primeras 12 horas predijo mala evolución o CPC 3-5 (sensibilidad 91,5%; especificidad 81,8%; AUC=0,906). Los valores horarios de BIS/TS mostraron buena capacidad predictiva (AUC> 0,85) desde la 2.a hora para TS y 4.a para BIS. Conclusiones: El BIS/TS permiten estimar el PRN tras una PC. Este hallazgo puede contribuir a crear conciencia con respecto a evitar la limitación de escalada terapéutica en pacientes potencialmente recuperables.(AU)

Introduction and objectives: Myocardial dysfunction contributes to early mortality (24-72 hours) among survivors of a cardiac arrest (CA). The benefits of mechanical support in refractory shock should be balanced against the patient's potential for neurological recovery. To date, these early treatment decisions have been taken based on limited information leading mainly to undertreatment. Therefore, there is a need for early, reliable, accessible, and simple tools that offer information on the possibilities of neurological improvement. Methods: We collected data from bispectral index (BIS) and suppression ratio (SR) monitoring of adult comatose survivors of CA managed with targeted temperature management (TTM). Neurological status was assessed according to the Cerebral Performance Category (CPC) scale. Results: We included 340 patients. At the first full neurological evaluation, 211 patients (62.1%) achieved good outcome or CPC 1-2. Mean BIS values were significantly higher and median SR lower in patients with CPC 1-2. An average BIS> 26 during first 12hours of TTM predicted good outcome with 89.5% sensitivity and 75.8% specificity (AUC of 0.869), while average SR values> 24 during the first 12hours of TTM predicted poor outcome (CPC 3-5) with 91.5% sensitivity and 81.8% specificity (AUC, 0.906). Hourly BIS and SR values exhibited good predictive performance (AUC> 0.85), as soon as hour 2 for SR and hour 4 for BIS. Conclusions: BIS/SR are associated with patients’ potential for neurological recovery after CA. This finding could help to create awareness of the possibility of a better outcome in patients who might otherwise be wrongly considered as nonviable and to establish personalized treatment escalation plans.(AU)

Bispectral index and suppression ratio after cardiac arrest: are they useful as bedside tools for rational treatment escalation plans?

INTRODUCTION AND OBJECTIVES: Myocardial dysfunction contributes to early mortality (24-72 hours) among survivors of a cardiac arrest (CA). The benefits of mechanical support in refractory shock should be balanced against the patient's potential for neurological recovery. To date, these early treatment decisions have been taken based on limited information leading mainly to undertreatment. Therefore, there is a need for early, reliable, accessible, and simple tools that offer information on the possibilities of neurological improvement. METHODS: We collected data from bispectral index (BIS) and suppression ratio (SR) monitoring of adult comatose survivors of CA managed with targeted temperature management (TTM). Neurological status was assessed according to the Cerebral Performance Category (CPC) scale. RESULTS: We included 340 patients. At the first full neurological evaluation, 211 patients (62.1%) achieved good outcome or CPC 1-2. Mean BIS values were significantly higher and median SR lower in patients with CPC 1-2. An average BIS> 26 during first 12 hours of TTM predicted good outcome with 89.5% sensitivity and 75.8% specificity (AUC of 0.869), while average SR values> 24 during the first 12 hours of TTM predicted poor outcome (CPC 3-5) with 91.5% sensitivity and 81.8% specificity (AUC, 0.906). Hourly BIS and SR values exhibited good predictive performance (AUC> 0.85), as soon as hour 2 for SR and hour 4 for BIS. CONCLUSIONS: BIS/SR are associated with patients' potential for neurological recovery after CA. This finding could help to create awareness of the possibility of a better outcome in patients who might otherwise be wrongly considered as nonviable and to establish personalized treatment escalation plans.

Krüppel-like factor 6 (KLF6) requires its amino terminal domain to promote villous trophoblast cell fusion.

INTRODUCTION: Villous cytotrophoblast (vCTB) cells fuse to generate and maintain the syncytiotrophoblast layer required for placental development and function. Krüppel-like factor 6 (KLF6) is a ubiquitous transcription factor with an N-terminal acidic transactivation domain and a C-terminal zinc finger DNA-binding domain. KLF6 is highly expressed in placenta, and it is required for proper placental development. We have demonstrated that KLF6 is necessary for cell fusion in human primary vCTBs, and in the BeWo cell line. MATERIALS AND METHODS: Full length KLF6 or a mutant lacking its N-terminal domain were expressed in BeWo cells or in primary vCTB cells isolated from human term placentas. Cell fusion, gene and protein expression, and cell proliferation were analyzed. Moreover, Raman spectroscopy and atomic force microscopy (AFM) were used to identify biochemical, topography, and elasticity cellular modifications. RESULTS: The increase in KLF6, but not the expression of its deleted mutant, is sufficient to trigger cell fusion and to raise the expression of ß-hCG, syncytin-1, the chaperone protein 78 regulated by glucose (GRP78), the ATP Binding Cassette Subfamily G Member 2 (ABCG2), and Galectin-1 (Gal-1), all molecules involved in vCTB differentiation. Raman and AFM analysis revealed that KLF6 reduces NADH level and increases cell Young's modulus. KLF6-induced differentiation correlates with p21 upregulation and decreased cell proliferation. Remarkable, p21 silencing reduces cell fusion triggered by KLF6 and the KLF6 mutant impairs syncytialization and decreases syncytin-1 and ß-hCG expression. DISCUSSION: KLF6 induces syncytialization through a mechanism that involves its regulatory transcriptional domain in a p21-dependent manner.

Extracorporeal CO2 removal and renal replacement therapy in acute severe respiratory failure in COVID-19 pneumonia: Case report.

The COVID-19 pandemic significates an enormous number of patients with pneumonia that get complicated with severe acute respiratory distress syndrome (ARDS), some of them with refractory hypercapnia and hypoxemia that need mechanical ventilation (MV). Those patients who are not candidate to extracorporeal membrane oxygenation (ECMO), the extracorporeal removal of CO2 (ECCO2 R) can allow ultra protective MV to limit the transpulmonary pressures and avoid ventilatory induced lung injury (VILI). We report a first case of prolonged ECCO2 R support in 38 year male with severe COVID-19 pneumonia refractory to conventional support. He was admitted tachypneic and oxygen saturation 71% without supplementary oxygen. The patient's clinical condition worsens with severe respiratory failure, increasing the oxygen requirement and initiating MV in the prone position. After 21 days of protective MV, PaCO2 rise to 96.8 mmHg, making it necessary to connect to an ECCO2 R system coupled continuous veno-venous hemodialysis (CVVHD). However, due to the lack of availability of equipment in the context of the pandemic, a pediatric gas exchange membrane adapted to CVVHD allowed to maintain the removal of CO2 until completing 27 days, being finally disconnected from the system without complications and with a satisfactory evolution.

Inbreeding in a dioecious plant has sex- and population origin-specific effects on its interactions with pollinators.

We study the effects of inbreeding in a dioecious plant on its interaction with pollinating insects and test whether the magnitude of such effects is shaped by plant individual sex and the evolutionary histories of plant populations. We recorded spatial, scent, colour, and rewarding flower traits as well as pollinator visitation rates in experimentally inbred and outbred, male and female Silene latifolia plants from European and North American populations differing in their evolutionary histories. We found that inbreeding specifically impairs spatial flower traits and floral scent. Our results support that sex-specific selection and gene expression may have partially magnified these inbreeding costs for females, and that divergent evolutionary histories altered the genetic architecture underlying inbreeding effects across population origins. Moreover, the results indicate that inbreeding effects on floral scent may have a huge potential to disrupt interactions among plants and nocturnal moth pollinators, which are mediated by elaborate chemical communication.

Destroying habitats can reduce the size of local populations of many plants and animals. For plants, a smaller population means a greater chance of inbreeding, where individual plants that are closely related to each other mate and produce offspring. Inbreeding often results in offspring that are weaker than their parents which can reduce the plant's chance of survival. Many plants rely on animals to help them to breed. For example, bees carry pollen ­ containing the male sex cell ­ to other flowers which then fertilize the plant to produce seeds. Flowers use a wide range of attributes to attract animals such as their colour, scent and providing them with food. However, inbreeding may alter these characteristics which could make it harder for inbred plants to reproduce, meaning that populations would end up shrinking even faster. To test this theory, Schrieber et al. studied flowers from white campions which use moths to breed. Inbred plants had smaller and fewer flowers, and had a different smell. In particular, they produced less of a chemical scent that is known to attract moths at night. Schrieber et al. then tracked moths visiting a mixed population of inbred and control plants. Fewer moths visited the inbred flowers, particularly the ones that were female. This shows that inbreeding may accelerate population loss and extinction by making flowers less attractive to animals. This work highlights the impact habitat destruction has on plants and shows how species can decline rapidly as populations shrink. This could help to support conservation efforts and inform ecology models to better understand our effect on the environment.

Butterflies visit more frequently, but bees are better pollinators: the importance of mouthpart dimensions in effective pollen removal and deposition.

Pollination studies often use visitation frequency of potential pollinators as an indicator of their importance, but this is only one component and may not reflect actual pollen transfer rates. In this study, we determine the most effective pollinator group of Angadenia berteroi, a tropical perennial subshrub with large yellow flowers that set few fruits. We determined visitation frequency and pollen transfer effectiveness of the four most common groups of visitors (long- and short-tongued bees, and skipper and non-skipper butterflies). Using potted plants, we exposed flowers to single visits from different types of pollinators to measure fruit set. We demonstrate that A. berteroi is most effectively pollinated by long-tongued bees, though many other species visit the flowers; the most frequent visitor group is not the most important pollinator, because they neither carry nor deposit much pollen, as the width of their proboscis is small compared with long-tongued bees. In this system, the width of the proboscis of the pollinators correlates with pollen transfer efficiency. Our results demonstrate the importance of pollen removal, pollen deposition, and fruit set, in determining the most effective pollinators, rather than visitor frequency. The distinctive morphology of these flowers, with a large bell and a narrow, short tube, suggests that other flowers of this shape may similarly benefit more from visitors with mouthparts shorter than previously considered optimal.

Medicina tradicional y natural y la teoría de las complejidades / Natural and traditional medicine and the theory of complexities i: en

En el presente artículo se aborda el ejercicio de la medicina tradicional y natural, mediante un análisis desde la teoría de las complejidades, con una interpretación de la organización y existencia de los seres vivos, a partir de regularidades no aplicadas en la medicina alopática y la medicina bioenergética al atender al hombre y su entorno sociocultural, lo cual propicia una práctica médica más sistémica, eficiente y ética. Además, se pretende perfeccionar la medicina bioenergética complementada por el enfoque sistémico complejo y su aplicación en diferentes escenarios. La citada teoría fortalece la visión científica de la medicina tradicional y natural desde los puntos de vista teórico y práctico.

In this work, the use of the traditional and natural medicine is investigated, by means of an analysis from the theory of complexities, with an interpretation of the organization and the existence of the alive beings, from regularities not applied in the alopathic and bioenergetic medicine, when assisting man and his social and cultural environment, which favors a more systemic, efficient and ethical medical practice. Besides, it is intended to improve the bioenergetic medicine, supplemented by the complex systemic approach and its application in different scenarios. The mentioned theory strengthens the scientific vision of the traditional and natural medicine from the theoretical and practical points of view.

Medicina tradicional y natural y la teoría de las complejidades / Natural and traditional medicine and the theory of complexities

En el presente artículo se aborda el ejercicio de la medicina tradicional y natural, mediante un análisis desde la teoría de las complejidades, con una interpretación de la organización y existencia de los seres vivos, a partir de regularidades no aplicadas en la medicina alopática y la medicina bioenergética al atender al hombre y su entorno sociocultural, lo cual propicia una práctica médica más sistémica, eficiente y ética. Además, se pretende perfeccionar la medicina bioenergética complementada por el enfoque sistémico complejo y su aplicación en diferentes escenarios. La citada teoría fortalece la visión científica de la medicina tradicional y natural desde los puntos de vista teórico y práctico(AU)

In this work, the use of the traditional and natural medicine is investigated, by means of an analysis from the theory of complexities, with an interpretation of the organization and the existence of the alive beings, from regularities not applied in the alopathic and bioenergetic medicine, when assisting man and his social and cultural environment, which favors a more systemic, efficient and ethical medical practice. Besides, it is intended to improve the bioenergetic medicine, supplemented by the complex systemic approach and its application in different scenarios. The mentioned theory strengthens the scientific vision of the traditional and natural medicine from the theoretical and practical points of view(AU)

A pillared metal-organic framework incorporated with 1,2,3-triazole moieties exhibiting remarkable enhancement of CO2 uptake.

The replacement of the pillar ligand, 4,4'-bipyridine, in the prototypal pillared MOF, MOF-508, with the custom-designed ligand, 4,4'-(2H-1,2,3-triazole-2,4-diyl)dipyridine, affords a porous metal-triazolate framework, MTAF-3, which demonstrates remarkable enhancement of CO(2) uptake capacity by a factor of ~3 compared to the parent MOF-508.

Porous double-walled metal triazolate framework based upon a bifunctional ligand and a pentanuclear zinc cluster exhibiting selective CO2 uptake.

The self-assembly of a custom-designed bifunctional ligand featuring both 1,2,3-triazolate and carboxylate donor groups with a pentanuclear zinc cluster generated in situ affords a double-walled metal triazolate framework (MTAF) material, MTAF-1 (Zn(5)(µ(3)-O)(2)(C(9)N(3)H(5)O(2))(5)(H(+))(4)(H(2)O)(17)(C(3)H(7)NO)(10)), which exhibits a surface area of 2300 m(2)/g and demonstrates interesting selective CO(2) uptake performances.

Los sistemas vivos y las ciencias de las complejidades: relación entre soma y red biológica / The alive systems and the complexities sciences: relationship between soma and biological net

La primera ciencia de la complejidad que se acercó a la vida como fenómeno universal fue la termodinámica clásica, pero no lograba explicar completamente los fenómenos asociados a la vida misma, debido al carácter lineal de su estructura matemática, que imposibilitaba describir los sistemas alejados del equilibrio termodinámico (esto último considerado la primera gran característica de los organismos vivos como sistemas); lo más que tal ciencia podía esclarecer eran aquellos procesos delimitados por flujos débiles cercanos al equilibrio, en los cuales el sistema termodinámico alcanzaba un estado estacionario con una generación de entropía mínima (medida del desorden de un sistema), que mantenía a este muy próximo al equilibrio

Los sistemas vivos y las ciencias de las complejidades: relación entre soma y red biológica / The alive systems and the complexities sciences: relationship between soma and biological net

La primera ciencia de la complejidad que se acercó a la vida como fenómeno universal fue la termodinámica clásica, pero no lograba explicar completamente los fenómenos asociados a la vida misma, debido al carácter lineal de su estructura matemática, que imposibilitaba describir los sistemas alejados del equilibrio termodinámico (esto último considerado la primera gran característica de los organismos vivos como sistemas); lo más que tal ciencia podía esclarecer eran aquellos procesos delimitados por flujos débiles cercanos al equilibrio, en los cuales el sistema termodinámico alcanzaba un estado estacionario con una generación de entropía mínima (medida del desorden de un sistema), que mantenía a este muy próximo al equilibrio(AU)

[Isolation of environmental mycobacteria from soils of Córdoba city Argentina]. / Aislamiento de micobacterias medioambientales en suelos de la ciudad de Córdoba.

The interest for the research on enviromental mycobacteria has risen over the last decades, in part, due to a significant incidence rate rise. Reports from all over the world address the soil as the major source for human contamination. In Argentina two documents report the prevalence of atypical mycobacteriosis at Córdoba (1997), and the isolation of enviromental mycobacteria from soils of the Province of La Pampa (1999) respectively. The aim of our study was to confirm the presence of enviromental mycobacteria in soil of the city of Córdoba. The map of the city was divided in 9 regions according to avenues and major streets distribution. A total of 120 soil samples were recollected with spatula from a 10 x 10 cm square up to 1 cm deep. Samples were kept at 4 degrees C no more than 7 days. Soil samples were homogenized with destilled water in a 1:1 proportion, and decontaminated according to Petroff's method. The cultures were made in Lowestein-Jehnsen media and incubated at 37 degrees C controlling development every 7 days for 2 months. An acid-fast-bacilli smear was made from colonies obtained. Twenty three cultures (19%) were discarded due to contamination. Twenty cultures (17%) developed acid fast bacilli (AFB). Colonies obtained were sent to the Mycobacteria Service of the Instituto Nacional de Enfermedades Infecciosas Dr. Carlos G. Malbrán, in the city of Buenos Aires, for identification. A single isolation was identified as Mycobacterium triviale. A positive correlation was observed between the frequency of positive AFB isolation and the number of samples taken from park areas. The presence of enviromental mycobacteria in soils of Córdoba was confirmed. Results suggest higher odds of isolation in parklands and soils where animals live. Extensive works are needed to asset the features that allow and contribute the proliferation of mycobacteria in soils.

Aislamiento de micobacterias medioambientales en suelos de la ciudad de Córdoba. / [Isolation of environmental mycobacteria from soils of Córdoba city Argentina]

The interest for the research on enviromental mycobacteria has risen over the last decades, in part, due to a significant incidence rate rise. Reports from all over the world address the soil as the major source for human contamination. In Argentina two documents report the prevalence of atypical mycobacteriosis at Córdoba (1997), and the isolation of enviromental mycobacteria from soils of the Province of La Pampa (1999) respectively. The aim of our study was to confirm the presence of enviromental mycobacteria in soil of the city of Córdoba. The map of the city was divided in 9 regions according to avenues and major streets distribution. A total of 120 soil samples were recollected with spatula from a 10 x 10 cm square up to 1 cm deep. Samples were kept at 4 degrees C no more than 7 days. Soil samples were homogenized with destilled water in a 1:1 proportion, and decontaminated according to Petroffs method. The cultures were made in Lowestein-Jehnsen media and incubated at 37 degrees C controlling development every 7 days for 2 months. An acid-fast-bacilli smear was made from colonies obtained. Twenty three cultures (19

) were discarded due to contamination. Twenty cultures (17

) developed acid fast bacilli (AFB). Colonies obtained were sent to the Mycobacteria Service of the Instituto Nacional de Enfermedades Infecciosas Dr. Carlos G. Malbrán, in the city of Buenos Aires, for identification. A single isolation was identified as Mycobacterium triviale. A positive correlation was observed between the frequency of positive AFB isolation and the number of samples taken from park areas. The presence of enviromental mycobacteria in soils of Córdoba was confirmed. Results suggest higher odds of isolation in parklands and soils where animals live. Extensive works are needed to asset the features that allow and contribute the proliferation of mycobacteria in soils.