We aimed to propose a simple and effective preservation method in lungs procured for transplantation from uncontrolled donation after circulatory death (uDCD) associated with excellent long-term results. Outcome measures for lung recipients were survival and primary graft dysfunction (PGD) grade 3. Survival was estimated using the Kaplan-Meier method.
View Article and Find Full Text PDFJ Heart Lung Transplant
February 2014
Background: An intensive lung donor-management protocol based on a strict protocol would increase the lung procurement rate. The aim of this study was to determine the effect of such a protocol on the rate of lung grafts available for transplant.
Methods: A lung-management protocol for donors after brain death (DBD) was implemented in 2009.
Solid organ transplantation can be followed by Aspergillus infection, implying high mortality rates. The highest infection rates are registered among lung transplant recipients. We present a recent case of an Aspergillus endocarditis in a young lung transplant recipient.
View Article and Find Full Text PDFBackground: Posttransplant infection after lung transplantation is a common feature due to the immunodeficiency induced by the immunosuppressive load.
Aim: To assess B-cell subsets in lung transplant recipients suffering at least one episode of infection within the first year posttransplantation.
Methods: Twenty-eight lung transplant recipients were enrolled in the study.
The Spanish Lung Transplant Registry (SLTR) began its activities in 2006 with the participation of all the lung transplantation (LT) groups with active programs in Spain. This report presents for the first time an overall description and results of the patients who received lung transplants in Spain from 2006 to 2010. LT activity has grown progressively, and in this time period 951 adults and 31 children underwent lung transplantation.
View Article and Find Full Text PDFObjectives: To assess the incidence and risk factors for nosocomial infection after video-assisted thoracic surgery (VATS).
Methods: Prospective cohort study of all consecutive patients who underwent VATS surgery during 20 months. Patients were visited on a daily basis and followed up until they were discharged from the hospital.
In the perspective of a biomonitoring application for assessing genotoxicity of freshwater ecosystems, the Comet assay has recently been developed on spermatozoa in the amphipod Gammarus fossarum, in order to propose a sensitive and reliable genotoxicity biomarker in an ecologically relevant freshwater species. The appropriate use of a genotoxicity biomarker requires good knowledge of its basal level and its natural variability related to intrinsic biotic and environmental abiotic factors. We propose a procedure for which the lowest biomarker variability related to methodological and intrinsic biotic factors is obtained and a reference value of biomarker basal response taking into account its spatio-temporal changes has been defined.
View Article and Find Full Text PDFThe present guidelines have been prepared with the consensus of at least one representative of each of the hospitals with lung transplantation programs in Spain. In addition, prior to their publication, these guidelines have been reviewed by a group of prominent reviewers who are recognized for their professional experience in the field of lung transplantation. Within the following pages, the reader will find the selection criteria for lung transplantation candidates, when and how to remit a patient to a transplantation center and, lastly, when to add the patient to the waiting list.
View Article and Find Full Text PDFThe aim of this study was to propose a tool for freshwater environmental genotoxicity assessment using Gammarus fossarum, a high ecologically relevant species. In a first part, gammarids were caged upstream and downstream wastewater treatment plant effluent output. The sensitivity of genotoxic responses of haemocytes, oocytes and spermatozoa was compared using the Comet assay.
View Article and Find Full Text PDFObjective: We analyzed short, medium and long-term mortality in transplant recipients who received lungs from donors aged 55 years or more.
Patients And Methods: All patients who underwent lung transplantation from donors aged 55 years or more were included. The association between the different study variables and early death and death at 1 year and 5 years was studied.
Potamopyrgus antipodarum is a promising test organism often used in ecotoxicology testing, both in laboratory and in field exposure experiments. It has been recommended for use in the development of an OECD reproduction test. However, exposure temperature is important to take into account when assessing reproduction and related biomarkers, because it can act as a confounding factor inducing variability in physiological values.
View Article and Find Full Text PDFThe Lot River is known to be contaminated by metals, mainly cadmium and zinc, due to a former Zn ore treatment plant in the watershed of the Riou-Mort, a tributary of the Lot River. Many studies have been performed to characterize contamination, but few have assessed its consequences on the biological responses of organisms along the gradient. We exposed adult and juvenile New Zealand freshwater mudsnails Potamopyrgus antipodarum at several sites along the gradient of metal contamination for 28 days.
View Article and Find Full Text PDFMollusk species have been shown to be sensitive to various endocrine disrupting compounds (EDC) at environmentally relevant concentrations. Waste water treatment plant (WWTP) effluents are a major source of potential or known EDC in the aquatic environment. The aim of this study was to develop an in situ exposure method using the New Zealand mudsnail Potamopyrgus antipodarum (Molluska, Hydrobiidea) to assess the impact of water quality on the life traits of this species, by focusing on its reproduction.
View Article and Find Full Text PDFThe freshwater prosobranch Potamopyrgus antipodarum (Molluska, Hydrobiidea, Smith 1889) has been proposed as a suitable species to assess the impact of endocrine disrupting compounds (EDC) in aquatic ecosystems. Steroid hormone biosynthesis pathway is potentially an important target for EDC, and vertebrate-like sex steroids seem to play a functional role in the control of mollusk reproduction. To assess the response and the sensitivity of P.
View Article and Find Full Text PDFThe appropriate use of an enzyme activity as a biomarker requires good knowledge of its basal level and its natural variability related to intrinsic biotic and environmental abiotic factors. In view of using whole-body acetylcholinesterase (AChE) activity in Gammarus fossarum as a reliable biomarker of exposure to anti-cholinesterase agents in aquatic ecosystems, (i) the effects of the main biotic (sex, reproductive status, and weight) and abiotic (water temperature) factors on the basal activity level of this enzyme were measured in the laboratory and (ii) the spatio-temporal variability of basal enzyme activity was followed in wild populations over a 1-year period. The results show no direct effect of sex.
View Article and Find Full Text PDFFluoxetine is a widely used antidepressant, frequently found in aquatic ecosystems. We investigated its effects on two freshwater prosobranch gastropods: Valvata piscinalis (European valve snail) and Potamopyrgus antipodarum (New Zealand mudsnail), which have different reproductive modes. The fecundity of V.
View Article and Find Full Text PDFChemosphere
September 2008
Fluoxetine is a serotonin re-uptake inhibitor, generally used as an antidepressant. It is suspected to provoke substantial effects in the aquatic environment. This study reports the effects of fluoxetine on the life cycle of four invertebrate species, Daphnia magna, Hyalella azteca and the snail Potamopyrgus antipodarum exposed to fluoxetine spiked-water and the midge Chironomus riparius exposed to fluoxetine-spiked sediments.
View Article and Find Full Text PDFSediments usually contain mixtures of trace metals introduced via natural geochemical processes and anthropogenic activities. Kinetics and effects of these metals are strongly dependent both on the composition of the mixture and on the physico-chemical characteristics of the sediment. Relating effects to metal concentration may consequently be advised.
View Article and Find Full Text PDFThe aim of this study was to investigate the effects of cadmium on physiological and behavioural responses in Gammarus pulex. In a first experiment, cadmium LC50s for different times were evaluated in 264 h experiment under continuous mode of exposure (LC50(96 h)=82.1 microgL(-1), LC50(120 h)=37.
View Article and Find Full Text PDFThis paper presents original toxicity test designs and mathematical models that may be used to assess the deleterious effects of toxicants on Valvata piscinalis (Mollusca, Gastropoda). Results obtained for zinc, used as a reference toxicant, are presented. The feeding behavior, juvenile survival, growth, age at puberty, onset of reproduction, number of breedings during the life cycle, and fecundity were significantly altered when the snails were exposed to zinc-spiked sediments.
View Article and Find Full Text PDFThis paper provides original collection, acclimatizing, rearing and toxicity test methods for the freshwater worm Branchiura sowerbyi, an alternative species to Tubifex tubifex for ecotoxicity evaluation of sediments. Influence of the substrate, type of food, and feeding level on individual performances was assessed in short-term tests, in order to set up optimal culture and test conditions. Low-size particles and high organic matter content favoured the growth and reproduction of B.
View Article and Find Full Text PDFEcotoxicol Environ Saf
February 2006
A 4-day embryo-larval zebrafish test, from blastula stage to hatching included, was developed. The observations of embryo developmental were made at different development stages, for which morphological, physiological, and behavioral endpoints were selected and quantified for unexposed and exposed embryos. The sensitivity and the ability of these endpoints to inform about mode of action (MoA) were established in testing three model toxicants with well-known toxic effects (propranolol, malathion, cadmium).
View Article and Find Full Text PDFEnviron Toxicol Chem
January 2006
Translating effects from individual to population level is a crucial issue in ecological risk assessment of bed sediments. We first propose a modeling package to tackle this question for the species Chironomus riparius with biology- and ecology-based models to deduce effects on chironomid production per generation or per year. However, this approach requires the performance of many toxicity tests.
View Article and Find Full Text PDFStudy Objectives: To assess the incidence and risk factors for nosocomial infection after lung surgery.
Design: Prospective cohort study.
Setting: Service of thoracic surgery of an acute-care teaching hospital in Santander, Spain.
This paper aimed at proposing rearing and testing protocols for Valvata piscinalis, a new potential species for sediment toxicity testing. Such tests were developed since this species reliably represents the bio/ecological characteristics of other gastropods. It may thus be representative of their sensitivity to chemicals.
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