Predictive value of isoform -2 proprostate-specific antigen and its derived indexes for prostate cancer patients with PSA 4-20 ng/mL / 现代泌尿外科杂志

【Objective】 To evaluate the predictive value of isoform [-2] proprostate-specific antigen, p2 PSA (p2PSA) and its derived indexes for prostate cancer in a Chinese cohort with PSA 4-20 ng/mL. 【Methods】 A total of 139 males scheduled for biopsy were enrolled in the prospective study from Nov.2021 to Jun.2022. The total PSA (tPSA), free PSA (fPSA), fPSA/tPSA (f/t) and p2PSA were collected, and the percentage of p2PSA(%p2PSA) and prostate health index(PHI) were calculated. The predictive value of p2PSA and its derived indexes were compared with traditional indexes with receiver operating characteristic (ROC) curve and Logistic analysis. 【Results】 Prostate cancer was found in 54 cases (38.8%). There were significant statistical differences in tPSA(10.68 vs.8.14, P=0.021), f/t(0.13 vs.0.16, P=0.006), p2PSA(30.25 vs.19.81, P<0.001), %p2PSA(21.52 vs.13.15, P<0.001) and PHI(64.3vs.38.2, P<0.001) between prostate cancer patients and non-prostate cancer patients. The area under the ROC curve (AUC) of tPSA, fPSA, %fPSA, p2PSA, %p2PSA and PHI were 0.63, 0.51, 0.63, 0.71, 0.73, and 0.80, respectively. The inclusion of %p2PSA and PHI significantly increased the prediction efficiency of the basic prediction model (AUCbase+PHI=0.81, AUCbase+%p2PSA=0.78, AUCbase=0.67). With 35 as the recommended cut-off value of PHI, the incidence of meaningless puncture was reduced by 25.8%(36/139). 【Conclusion】 The application of p2PSA and its derived indexes have good predictive value for patients with PSA 4-20 ng/mL. The combined detection of %p2PSA and PHI can significantly increase the detection efficiency of prostate cancer and reduce the incidence of meaningless prostate puncture by 25.8%.

Evaluation of Efficacy of DAB for Phi Bodies in Acute Leukemia

Diagnosing the type and sub-type of Leukemia is very important as the therapy, prognosis and survival rate changes with each type and sub-type. In the present study French American British (FAB) morphological classification is used and 60 % cases of Leukemia were evaluated by studying the detailed clinical features, morphology on peripheral blood smear and bone marrow aspiration. Out of the 60 cases we found that 40 cases were of acute Leukemia and 20 cases of chronic Leukemia. Out of which 24 were of acute Myeloid Leukemia, 16 of acute Lymphoid Leukemia. There were 15 cases of CML and 5 cases of CLL. Phi bodies appear to be characteristics of immature Myeloid cells in Leukemia and are seen with a higher frequency than Auer rods in acute Myeloid Leukemia

El parto pretérmino desde los registros del nacido vivo en Colombia, período 2008 - 2017 / Preterm birth from live-born registry in the period between 2008 - 2017 in Colombia

Resumen. Introducción: El parto pretérmino es uno de los principales problemas de la salud infantil. Es la principal causa de mortalidad infantil en los países en vía de desarrollo. Los últimos 20 años ha venido en aumento en el mundo por diferentes causas. Conocer su tendencia y características poblacionales es un elemento útil para su atención. Objetivo: Describir las características poblacionales asociados al parto pretérmino en Colombia desde los datos del Registro del Nacido Vivo en la década 2008 - 2017. Métodos: Estudio descriptivo ecológico a partir de fuentes segundarias: microdatos de Estadísticas Vitales del DANE; información almacenada en el programa Excel de Microsoft Office®. Análisis de las variables tiempo/lugar/persona en el programa estadístico SPSS™ mediante estadística descriptiva, análisis de asociación utilizando el estadístico Ji-cuadrado y el coeficiente de correlación Phi para la asociación estadística entre variables. Resultados. Fueron analizados 6.705.385 registros de nacidos vivos, 1.277.839 correspondientes a parto hasta las 37 semanas de gestación. Prevalencia del 19% de todos los años. Departamentos con mayor tasa de prematuros: Atlántico, Bogotá, Antioquía y Santander. No se encontró una asociación fuerte con los datos del registro del nacido vivo. Conclusiones: Existe déficit de información acerca del parto pretérmino en aspectos de datos completos y accesibles a los investigadores. La información no es homogénea ni sigue parámetros específicos. El registro de nacido vivo, sin embargo, es un excelente instrumento de recolección de datos poblacionales y base de aproximación al evento.

Abstract Background: Preterm birth is one of the main problems in infant health and it is the leading cause of infant mortality in developing countries. During the last 20 years this particularity has been increasing in the world for different reasons. Knowing its trend and population characteristics is a useful element for its attention. Objectives: To describe the population characteristics associated with preterm birth in Colombia from the data of the Live Birth Registry in the decade 2008 - 2017. Methods: Descriptive ecological study using secondary sources such us Vital Statistics microdata from DANE; information stored in the Microsoft Office® Excel program. Also, the analysis of the time/place/person variables in the SPSS ™ statistical program through descriptive statistics, and association analysis using the Chi-square statistic and the Phi correlation coefficient for the statistical association between variables was implemented. Results: 6,705,385 records from live-born registry were analyzed. 1,277,839 corresponded to preterm birth up to 37 weeks of gestation with 19% of prevalence all years. The departments with the highest rate of premature infants were Atlántico, Bogotá, Antioquia, and Santander. No strong association was found with live birth registry data. Conclusions: There is lack of complete and accessible information to researchers related to preterm birth. The data is not homogeneous and does not follow specific parameters. However, the live-born registry is an excellent instrument for collecting population data and a useful basis for approaching this event.

Diagnostic performance of prostate health index (PHI) in predicting prostate cancer on prostate biopsy

@# Prostate health index (PHI) has been shown to have better diagnostic accuracy in predicting prostate cancer (PCa) in men with total prostate-specific antigen (PSA) levels between 4-10ng/ml. However, little is known of its value in men with elevated PSA beyond this range. This study aimed to evaluate the diagnostic performance of PHI in Malaysian men with elevated PSA values ≤ 20ng/ml. Materials and Methods: From March 2015 to August 2016, all men consecutively undergoing transrectal ultrasound (TRUS)-guided prostate biopsy with total PSA values ≤ 20ng/ ml were recruited. Blood samples were taken immediately before undergoing prostate biopsy. The performance of total PSA, %fPSA, %p2PSA and PHI in determining the presence of PCa on prostate biopsy were compared. Results: PCa was diagnosed in 25 of 84 patients (29.7%). %p2PSA and PHI values were significantly higher (p<0.05) in patients with PCa than those without PCa. The areas under the receiver operating characteristic curves for total PSA, %fPSA, %p2PSA and PHI were 0.558, 0.560, 0.734 and 0.746, respectively. At 90% sensitivity, the specificity of PHI (42.4%) was five times better than total PSA (8.5%) and two times better than %fPSA (20.3%). By utilising PHI cut-off >22.52, 27 of 84 (32.1%) patients could have avoided undergoing biopsy. Conclusion: Findings of our study support the potential clinical effectiveness of PHI in predicting PCa in a wider concentration range of total PSA up to 20ng/ml.

Taxonomic notes on social wasps of the groups of Mischocyttarus wagneri (Buysson 1908) and M. barbatus Richards 1945 (Hymenoptera, Vespidae, Polistinae)

ABSTRACT Taxonomic revisionary notes and identification keys are presented for two species-groups of wasps of the genus Mischocyttarus, subgenus Phi. Material of the M. wagneri and M. barbatus groups, including types, was examined in several collections, resulting in description of one new species for the first mentioned group (M. camanducaia sp. nov.), and several new synonymies for both groups as follows (senior synonym in bold): [Mischocyttarus mourei Zikán 1949 = Mischocyttarus laneiZikán 1949 = Mischocyttarus plaumanniZikán 1949]; [Mischocyttarus declaratusZikán 1935 = Mischocyttarus confirmatusZikán 1935 = Mischocyttarus brackmanniZikán 1949 = Mischocyttarus alternatusZikán 1949 = Mischocyttarus cabaunaZikán 1949]; [Mischocyttarus barbatus Richards 1945 = Mischocyttarus ecuadorensisZikán 1949 = Mischocyttarus pedunculariusZikán 1949]. In addition, several cases are demonstrated of changing in group content, with species being moved into and out of groups as required. Both groups are distributed on the highlands of Central and South America, with the M. wagneri group being endemic to southeastern areas of the continent.

Una escala corta de bienestar: el Índice de Felicidad de Pemberton aplicado a población adulta de Buenos Aires / A short scale of well-being: the Pemberton Happiness Index applied to adult population or Buenos Aires

La escala Pemberton Hapinness Index (PHI) fue desarrollada por Hervás y Vázquez (2013) como un índice simple e integrador que puede usarse para monitorear los cambios en el bienestar. Se administró el PHI a una muestra de 1198 sujetos residentes en la zona metropolitana de Buenos Aires (edades: 18-60, M=27.82, DE=12.01, 43.2% hombres). En la aplicación al contexto argentino, se propone utilizar únicamente la dimensión recordada del bienestar sin considerar el ítem relativo a emocionalidad negativa. De esta forma se obtiene un alfa de Cronbach =.88 (10 ítems). Se verifican niveles altos de bienestar, sobre todo en lo referido al bienestar psicológico y los subdominios de satisfacción con la vida y afectos positivos. Sin embargo, respecto al bienestar social, los participantes reportan niveles medios. Se discuten los resultados considerando los antecedentes locales sobre la temática

The Pemberton Happiness Index (PHI) scale was developed by Hervás and Vázquez (2013) as a simple and integrative index that can be used to monitor changes in wellbeing. PHI was administered to a sample of 1198 subjects living in the metropolitan area of Buenos Aires (ages: 18-60, M = 27.82, SD = 12.01, 43.2% men). In the application to the Argentine context, it is proposed to specifically use the remembered dimension of well-being without considering the item related to negative emotionality. In this way, a Cronbach's alpha = .88 (10 items) is obtained. We verify high levels of well-being, especially in relation to psychological well-being and subdomains of life satisfaction and positive affections. However, regarding social well-being, participants report mid-levels. Results are discussed taking into account local background

Avaliação da sobrevivência de indicadores bacterianos e vírus durante higienização de lodo de esgoto por secagem térmica em estufa agrícola / Survival evaluation of bacterial indicators and viruses during thermal drying of sewage sludge in a greenhouse

RESUMO O presente trabalho objetivou avaliar o processo de secagem térmica de lodos de esgoto em estufa agrícola com vistas à inativação bacteriana e de vírus, além do comportamento de colifagos somáticos como indicadores desses organismos. Cada volume de lodo de esgoto excedente descartado de reator upflow anaerobic sludge blanket (UASB) foi desaguado em leito de secagem por 14 dias e direcionado para secagem em estufa agrícola correspondeu a um lote (L) de lodo. Entre fevereiro e novembro de 2015, foram tratados 9 lotes (L1 a L9) por, em média, 13 semanas. O pH se manteve estável na maioria deles (entre 5,0-6,0). Após, aproximadamente, 60 dias de tratamento, todos os lotes apresentavam umidade abaixo de 10%, exceto L3 e L4 (10-25%). O tempo necessário para atingir 90% de sólidos totais (ST) variou entre 40-50 (L1 e L7), 60 (L5 e L6) e 85-100 (L2, L3 e L4) dias. Os lotes levaram, em média, 50-60 dias para alcançarem níveis de E. coli iguais ou menores a 1x103 número mais provável (NMP)/g de ST. A detecção de colifagos somáticos foi baixa e eventual. O ensaio de inoculação mostrou decaimento rápido de vírus (Poliovírus 1 Sabin), mas colifago somático Phi X174 mostrou-se mais persistente nas três temperaturas avaliadas (estufa agrícola, controladas em laboratório - 30 e 60°C). O tratamento térmico de lodo de esgoto em estufa agrícola se apresentou como simples e eficiente na obtenção de produto granulado, seco e com níveis de redução da contaminação bacteriana atendendo ao parâmetro estabelecido como seguro para uso agrícola conforme a legislação brasileira.

ABSTRACT The aim of the study was to evaluate the thermic drying of sewage sludge in agricultural greenhouse, in order to inactivate bacterial and virus, and to evaluate the behavior of somatic coliphages as indicator of these organisms. Each volume of excess sewage sludge discarded from UASB reactor, drained in a drying bed for 14 days and directed to thermic drying treatment in greenhouse corresponded to a batch (B) of sludge. Between February and November 2015, nine batches (L1 to L9) were treated for an average of 13 weeks. Most batches kept the pH between 5.0-6.0. After about 60 days of treatment, all batches showed humidity below 10%, except B3 and B4 (10-25%). The time required to reach 90% of total solids ranged between 40-50 (B1 to B7), 60 (B5, B6) and 85-100 (B2, B3 and B4) days. On average, levels of E. coli reduced to <1x103 NMP/g TS after 50-60 days of treatment. The detection of somatic coliphages was low and eventual. Tests of inoculation showed rapid decay of virus (Sabin 1 strain poliovirus), but somatic coliphage Phi X174 was more persistent in the three temperatures evaluated (greenhouse, laboratory controlled 30 and 60°C). The thermic drying treatment of sewage sludge in agricultural greenhouse was presented as simple and efficient in obtaining granulated and dried product, and in reducing bacterial contamination levels given the parameter set as safe for agricultural use under the Brazilian law.

Application progress of gastric mucosa pH monitoring technique after congenital heart disease operation / 中华实用儿科临床杂志

Congenital heart disease(CHD)as the most common type of congenital anatomical deformity,the main treatment is surgical correction undergoing cardiopulmonary bypass.Some children will appear low cardiac output syndrome after the operation,it makes the body blood flow redistribution.The heart and brain are the organs which are ensured the blood perfusion at first.The gastrointestinal tract can not be fully perfused because of that,which makes gastrointestinal tract ischemia and hypoxia,acid metabolites accumulation.Gastric intramucosal pH (pHi)can reflect the gastric mucosal hypoxia status sensitively,warn the low cardiac output syndrome.At present,the pHi determines method includes the salt water tensiometer law and the continual gaseous state tensiometer law. Now,the gastric intramucosal pHi monitoring technology in the application of congenital heart disease was reviewed.

PHOTOSYSTEM II FLUORESCENCE AND GROWTH IN CABBAGE PLANTS (Brassica oleracea var. capitata) GROWN UNDER WATERLOGGING STRESS / FLUORESCENCIA DEL FOTOSISTEMA II Y CRECIMIENTO EN PLANTAS DE REPOLLO (Brassica oleracea var. capitata) EXPUESTAS A ESTRÉS POR ENCHARCAMIENTO

Waterlogging stress is a limiting factor in the production of crops grown in localities with high rainfall frequency. Waterlogging causes a decrease in the availability of O2 in roots, which substantially affects the anatomy, morphology and metabolism of plants. Oxygen deficiency inhibits mitochondrial respiration, oxidation, and oxygenation processes, causing severe affection of plant metabolism. A test in greenhouse conditions was carried out in Tunja, Colombia, in order to evaluate the effect of waterlogging on the growth of cabbage plants (Brassica oleracea var. capitata). Some plants were waterlogged for 25 days and their physiological response was compared with plants maintained at field capacity. As consequence of waterlogging, leaf area, total dry weight, chlorophyll content, leaf area ratio, absolute growth rate and relative growth rate were reduced. In addition, necrotic plants exhibited a high percentage of necrosis in the leaves. As for the variables related to chlorophyll fluorescence, there was a decrease of 17,9, 50,0 and 36,0% in the Fv/Fm values, ΦPSII and qP, respectively. All of these results indicate low tolerance of cabbage plants to waterlogging.

El estrés por encharcamiento es un factor limitante en la producción de algunos cultivos que se desarrollan en localidades, con alta frecuencia de lluvias. El encharcamiento causa disminución en la disponibilidad de O2 en las raíces, lo cual, afecta sustancialmente la anatomía, la morfología y el metabolismo de las plantas. El déficit de oxígeno inhibe la respiración mitocondrial, la oxidación y los procesos de oxigenación, con lo cual, el metabolismo de la planta resulta severamente afectado. Se desarrolló en Tunja, Colombia, un ensayo en condiciones de invernadero, con el propósito de evaluar el efecto del encharcamiento sobre el crecimiento de plantas de repollo (Brassica oleracea var. capitata). Algunas plantas fueron encharcadas durante 25 días y su respuesta fisiológica se comparó con la de plantas mantenidas a capacidad de campo. Como consecuencia del encharcamiento, se redujo el área foliar, el peso seco total, el contenido de clorofila y los valores de la relación de área foliar, de la tasa absoluta de crecimiento y de la tasa relativa de crecimiento. Adicionalmente, solo en las plantas expuestas al encharcamiento, se presentó necrosis en las hojas, en un alto porcentaje. En cuanto a las variables relacionadas con la fluorescencia de la clorofila, se registró una disminución de 17,9; 50,0 y 36,0%, en los valores de Fv/Fm, ΦPSII and qP, respectivamente. El conjunto de estos resultados indica baja tolerancia de las plantas de repollo al encharcamiento.

Comparison of Methods for Automatic De-identification of Clinical Texts / 医学信息学杂志

The paper introduces the common methods for automatic de-identification of clinical texts,including the method based on rules,machine learning method,comprehensive method,etc.,states the challenges for clinical texts practicability,system universality and scalability of clinical texts de-identification research,analyzes the further research direction,and provides reference for researchers of this field.

Study on the construction of training evaluation system of critical care nurses in Chongqing / 中华医学教育探索杂志

Objective To Establish an evaluation index system of critical care nurses training in Chongqing. Methods A panel of experts was formed with 20 experts from related fields. By the use of Del-phi method, we designed a questionnaire survey and took two rounds of expert consultation and revision, screening the intensive care nurse training evaluation index. SPSS 17.0 statistical software was used to assess the experts involved in the study and to determine the weight of indicators at all levels. Results In the course of the investigation, the experts participating in the initiative was very high, and the authority coeffi-cient (Cr) was 0.896. The training evaluation system of critical care nurses in Chongqing was initially iden-tified, including 3 first-level indicators, 7 second-level indicators 7, 21 third-level indicators. Conclusion The preliminary construction of critical care nurse training evaluation system in Chongqing can promote the ICU specialist nurse training effect and guarantee the training quality, and at the same time it provides some reference for the training and evaluation of the health administrative department.

Improved assembly procedure of viral RNA genomes amplified with Phi29 polymerase from new generation sequencing data

BACKGROUND: New sequencing technologies have opened the way to the discovery and the characterization of pathogenic viruses in clinical samples. However, the use of these new methods can require an amplification of viral RNA prior to the sequencing. Among all the available methods, the procedure based on the use of Phi29 polymerase produces a huge amount of amplified DNA. However, its major disadvantage is to generate a large number of chimeric sequences which can affect the assembly step. The pre-process method proposed in this study strongly limits the negative impact of chimeric reads in order to obtain the full-length of viral genomes. FINDINGS: Three different assembly softwares (ABySS, Ray and SPAdes) were tested for their ability to correctly assemble the full-length of viral genomes. Although in all cases, our pre-processed method improved genome assembly, only its combination with the use of SPAdes allowed us to obtain the full-length of the viral genomes tested in one contig. CONCLUSIONS: The proposed pipeline is able to overcome drawbacks due to the generation of chimeric reads during the amplification of viral RNA which considerably improves the assembling of full-length viral genomes.

An In Vivo Clinical Study of Facial Measurements For Anterior Teeth Selction.

The esthetic aspect of complete denture construction is increasingly occupying an important role in prosthodontics. Denture patients desire a brand of denture esthetics closely paralleling the ideal esthetic values of the third decade of life. Many pre-extraction records will guide selection of appropriate tooth mold for each individual. These include diagnostic casts, photographs, roentgenograms, extracted teeth etc. When no pre-extraction records are available; it is difficult to select an appropriate tooth mold that can reestablish the naturalness of the individual patient. In such a scenario, various facial measurements and proportions aid in the selection of appropriate artificial tooth dimensions. The “Golden proportion”, one of the building blocks of beauty, is one such guideline that can be applied to the profession of dentistry with assured success. The aim of present study is to find out which of the facial measurements are in golden ratio with anterior teeth and that can be used for artificial teeth selection

Características fisiológicas e anatômicas de plantas de sibipiruna submetidas à hipoxia / Physiological and anatomical characteristics of Sibipiruna plants under hipoxia

Plantas em seu ambiente natural estão sujeitas a condições adversas, passando por períodos de estresse breves ou duradouros. Algumas espécies desenvolvem mecanismos que as fazem suportar as condições adversas, permitindo sua sobrevivência. O objetivo deste estudo foi avaliar as respostas fisiológicas e anatômicas no desenvolvimento inicial de plantas de sibipiruna submetidas à hipoxia. Plantas com três a quatro folhas completamente expandidas foram submetidas a três tratamentos: plantas sem alagamento, alagadas nas raízes e totalmente alagadas. Foram realizadas avaliações dos teores de amido, açúcares solúveis totais e redutores em folhas e raízes coletadas a cada cinco dias, durante 30 dias. Características anatômicas foram avaliadas 15 dias após o início de cada tratamento. A maior redução nos teores de amido nas folhas e raízes foi observada nas plantas totalmente alagadas. Para açúcares solúveis totais e redutores, foi observado comportamento semelhante ao obtido em amido; porém, as plantas alagadas nas raízes apresentaram, em alguns períodos de avaliação, teores, principalmente nas raízes, superiores aos observados nas plantas sem alagamento. Essas plantas também apresentaram maior densidade estomática em relação aos demais tratamentos. Para a espessura do córtex e do cilindro vascular das raízes, foi observada uma redução para os tratamentos alagados, cujas plantas totalmente alagadas apresentaram uma maior barreira apoplástica imposta pelo espessamento em fi caracterizada pela formação de septos nas células próximas à endoderme.

Plants in their natural environment are subject to adverse conditions, and the stress periods can be short or long. Some species develop mechanisms that make them bear the adverse conditions, allowing their survival. The aim of this study was to evaluate the anatomic and physiological responses in the initial development of Sibipiruna plants submitted to hypoxia. Plants with three to four leaves fully expanded were subjected to three treatments: plants without flooding, flooded on roots and totally flooded. Evaluations were carried out in the starch, total soluble sugars and reducing sugars levels in the leaves and roots collected every five days, for 30 days. Anatomical characteristics were evaluated 15 days after the beginning of each treatment. The largest reduction in starch level in leaves and in roots was observed in plants completely flooded. For total soluble sugars and reducing sugars were observed behavior similar to that achieved in starch However, the plants which had flooded roots, in some periods of assessment, had levels, mainly in the roots, higher than the plants without flooding. These plants also showed higher stomatal density than the other treatments. For the thickness of the cortex and the cylinder vascular roots, a reduction was observed for the flooded treatment, which completely flooded plants had a higher apoplastic barrier imposed by thickening in phi, which is characterized by the formation of septa in cells near the endodermis.

A Clinical Study on Gastric Intramucosal PCO_2 and pH During Weaning from mechanical Ventilation / 医学研究杂志

Objective To observe the gastric intramucosal pH( pHi) and gastric intramucosal carbon dioxide tension (PgCO2) in patients, using an automated recirculating air tonometer during weaning from mechanical ventilation ,and to study the value of intramucosal PCO2 and pH measurements to predict weaning outcome from mechanical ventilation.Methods The study population included thirty -two adult critically patients who were mechanically ventilated because of acult respiratory failure and were considered ready to be weaned. Thirty-two patients were randomly assigned to synchronized intermittent mandatory ventilation combined with positive end-expiratory pressure and pressure support ventilation (SIMV+PEEP+PSV) group and continuous positive airway pressure with pressure support ventilation (CPAP+PSV)group,sixteen patients in each group . Respiratory and hemodynamic variables were measured during the weaning process. Simulaneously, the gastric intramucosal PCO2 and pH were measured. At the same time, an arterial blood sample was drawn for blood gas analysis.Results Eighteen patients were successfully weaned from mechanical ventilation and fourteen failed. The gastric intramucosal pH was initially 7.35?0.13 and decreased to 7.238?0.18 during the weaning process in patients who failed (P

Effects of Ulinstatin on Oxygenation and Gastric Intramucosal pH in Dogs with Sepsis / 医学研究杂志

Objective To investigate the effect of Ulinstatin(UTI) on oxygenation and gastric intramucosal pH in dogs with sepsis. Methods Sepsis was induced by intravenous infusion of lipopolysaccharide of E.coli.055:B5 to dogs,and the twenty dogs were divided into control group and ulinastatin group.Ulinastatin was administered in the ulinastatin group.The oxygen delivery(DO2),oxygen consumption(VO2), oxygen extraction(O2ER), plasma lactate levels and gastric intramucosal pH(pHi) were monitored. Results In early sepsis dogs,DO2,VO2,O2ER and plasma lactate levels increased significantly. Gastric intramucosal pH(pHi) decreased significantly. After the treatment with ulinastatin,DO2,VO2,O2ER and plasma lactate levels decreasd(P

The Effect of Blood Transfusion on the Tissue Perfusion and Lung Injury during Cardiopulmonary Bypass / 대한구급학회지

BACKGROUND: The blood components of priming solution for cardiopulmonary bypass (CPB) may have opposite roles for tissue perfusion, which are the activation of inflammatory reaction and the improvement of oxygen carrying capacity. This study is aimed to investigate the effect of blood transfusion of priming solution on inflammatory response and tissue perfusion. METHODS: Twenty mongrel dogs randomly allocated and received hypothermic CPB with blood- containing (H group, n=10), or non-hemic (NH group, n=10) priming solution. Gastric intramucosal CO2 concentration (PrCO2), intramucosal pH (pHi), interleukin-8 (IL-8), blood gas and hemodynamic parameters were measured at 1) before CPB, 2) 1 hour during CPB, 3) the end of CPB, 4) 2 hours after CPB, 5) 4 hours after CPB. The ratio of wet to dried lung weight was measured. Statistical verification was performed using repeated measures ANOVA and unpaired t-test. RESULTS: PrCO2 increased and pHi decreased during the study without significant difference between the groups. IL-8 increased in both groups and IL-8 of H group increased higher than that of NH group during the study. The difference between PaCO2 and end-tidal CO2 of NH group was higher than that of H group at 4 hours after CPB. The ratio of wet to dried lung weight was not significantly different between the groups. CONCLUSIONS: We conclude that the allogenic blood in priming solution aggravates the CPB- induced inflammatory reaction, however, the CPB-induced impairment of gastric mucosal perfusion and the pulmonary edema are not significantly affected, compared to non-hemic solution.

The Effect of Leukocyte Depletion from the Cardiopulmonary Bypass Priming Solution / 대한마취과학회지

BACKGROUND: Cardiopulmonary bypass provokes a vigorous inflammatory response and gut mucosal ischemia, which have important implications on the morbidity of cardiac surgery. The purpose of this study was to investigate the effect of a leukocyte-depleted priming solution on inflammatory response and tissue perfusion during cardiopulmonary bypass (CPB). METHODS: Twenty mongrel dogs received hypothermic (28degress C) partial CPB for 2 hours with blood-containing (C group, n = 10), or leukocyte-filtered (LD group, n = 10) priming solution. Gastric intramucosal PCO2 (PrCO2), pHi (pHi), IL-8, blood gas analysis and hemodynamic parameters were measured; 1) before CPB, 2) 1 hour into CPB, 2) 2 hours into CPB, 3) 2 hours after CPB, and 4) 4 hours after CPB. The ratio of wet to dry weight of lungs was measured. Statistical verification was performed using repeated measures ANOVA and unpaired t-test. RESULTS: All baseline data were comparable in the groups. Gastric intramucosal PCO2 increased and pHi decreased during the experiment ithout significant difference between the groups. IL-8 increased in both groups, however, it was lower in the LD group. The difference between PaCO2 and end-tidal CO2 increased during CPB in both groups, and was lower in the LD group. The ratio of wet to dry lung weight was significantly lower in the LD group. CONCLUSIONS: We conclude that the leukocyte depletion from the priming solution attenuates the inflammatory reaction and pulmonary edema induced by hypothermic CPB. The impairment of splanchnic perfusion during CPB may not be related to leukocyte in priming solution.

Effect of hyperoxic liquid on gastric intramucosal pH after myocardial ischemic reperfusion injury in rabbits / 西安交通大学学报(医学版)

Objective To investigate the changes in gastric intramucosal pH(pHi) and the effect of hyperoxic liquid on intramucosal pH(pHi) after myocardial ischemia-reperfusion injury in rabbits.Methods Twenty healthy male adult rabbits,weighing 2.3-3.0 kg,were randomly divided into two groups: control group(n=10) and hyperoxic liquid group(n=10).Hyperoxic liquid group received the routine infusion of hyperoxic liquidle of 10 mL/kg for seven days,while control group received the routine treatment infusion of saline instead of hyperoxic liquid of 10 mL/kg.Seven days later,the myocardial ischemic reperfusion model(I/R) was established,and ECG and homodynamic indexes were monitored simultaneously.Hemodynamic indexes and pHi were measured before myocardial ischemia,30 min after myocardial ischemia as well as 1 h and 2 h after reperfusion.Results Hyperoxic liquid could lower ST segment and improve hemodynamic indexes.pHi decreased significantly after myocardial ischemia-reperfusion injury in both groups.Compared with that in control group,pHi was significantly higher at 1 h and 2 h after reperfusion in hyperoxic liquid group(P

Changes of gastric mucosal blood flow and pH value during severe intraperitoneal infection in rats / 第三军医大学学报

Objective To investigate the changes of gastric mucosal blood flow and intramucosal pH value (pHi) during severe intraperitoneal infection in rats and the related significance. Methods The intraperitoneal infection rat model was established by cecal ligation and puncture (CLP). Laser Doppler blood flow meter on micro circulation and the vitreous electrode were used to examine the gastric mucosal blood flow and the gastric mucosal pH value, respectively. Results The gastric mucosal blood flow (GMBF) in the infected group was significantly lower than that in the control group ( P