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Prenatal diagnosis of X-linked hydrocephalus in a family with a novel mutation in L1CAM gene. J OBSTET GYNAECOL 2015; 36:403-5. [PMID: 26471711 DOI: 10.3109/01443615.2015.1086982] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Population pharmacokinetics of benznidazole in adult patients with Chagas disease. Antimicrob Agents Chemother 2015; 59:3342-9. [PMID: 25824212 PMCID: PMC4432184 DOI: 10.1128/aac.05018-14] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Accepted: 03/18/2015] [Indexed: 11/20/2022] Open
Abstract
The aim of the present study was to build a population pharmacokinetic (popPK) model to characterize benznidazole (BNZ) pharmacokinetics in adults with chronic Chagas disease. This study was a prospective, open-label, single-center clinical trial approved by the local ethics committee. Patients received BNZ at 2.5 mg/kg of body weight/12 h (Abarax, Elea Laboratory, Argentina) for 60 days. Plasma BNZ samples were taken several times during the study and analyzed by high-performance liquid chromatography with UV-visible detection (HPLC-UV). The popPK analysis was done with NONMEMv.7.3. Demographic and biological data were tested as covariates. Intraindividual, interoccasion, and residual variabilities were modeled. Internal and external validations were completed to assess the robustness of the model. Later on, simulations were performed to generate BNZ concentration-time course profiles for different dosage regimens. A total of 358 plasma BNZ concentrations from 39 patients were included in the analysis. A one-compartment PK model characterized by clearance (CL/F) and the apparent volume of distribution (V/F), with first-order absorption (Ka) and elimination, adequately described the data (CL/F, 1.73 liters/h; V/F, 89.6 liters; and Ka, 1.15 h(-1)). No covariates were found to be significant for CL/F and V/F. Internal and external validations of the final model showed adequate results. Data from simulations revealed that a dose of 2.5 mg/kg/12 h might lead to overexposure in most patients. A lower dose (2.5 mg/kg/24 h) was able to achieve trough BNZ plasma concentrations within the accepted therapeutic range of 3 to 6 mg/liter. In summary, we developed a population PK model for BNZ in adults with chronic Chagas disease. Dosing simulations showed that a BNZ dose of 2.5 mg/kg/24 h will adequately keep BNZ trough plasma concentrations within the recommended target range for the majority of patients. (This study has been registered at EudraCT under number 2011-002900-34 and at ClinicalTrials.gov under number NCT01755403.).
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Modelling the Economic Impact of Desvenlafaxine Versus Venlafaxine as a Second Line Therapy of Major Depressive Disorder Patients in Spain. Eur Psychiatry 2015. [DOI: 10.1016/s0924-9338(15)31247-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Cost-consequences Analysis of Desvenlafaxine Versus Usual Care in the Treatment of Major Depressive Disorder After Failure of First-line Treatment with a Selective-serotonin-reuptake-inhibitor (SSRI) in Spain. Eur Psychiatry 2015. [DOI: 10.1016/s0924-9338(15)31246-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Cases of chikungunya virus infection in travellers returning to Spain from Haiti or Dominican Republic, April-June 2014. Euro Surveill 2014; 19:20853. [DOI: 10.2807/1560-7917.es2014.19.28.20853] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Ten cases of chikungunya were diagnosed in Spanish travellers returning from Haiti (n=2), the Dominican Republic (n=7) or from both countries (n=1) between April and June 2014. These cases remind clinicians to consider chikungunya in European travellers presenting with febrile illness and arthralgia, who are returning from the Caribbean region and Central America, particularly from Haiti and the Dominican Republic. The presence of Aedes albopictus together with viraemic patients could potentially lead to autochthonous transmission of chikungunya virus in southern Europe.
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Aetiology of traveller's diarrhoea: evaluation of a multiplex PCR tool to detect different enteropathogens. Clin Microbiol Infect 2014; 20:O753-9. [PMID: 24621195 DOI: 10.1111/1469-0691.12621] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Revised: 03/07/2014] [Accepted: 03/10/2014] [Indexed: 12/13/2022]
Abstract
Traveller's diarrhoea (TD) is the most common illness reported in international travellers. TD is caused by a wide range of pathogens, including bacteria, viruses and parasites. Multiplex PCR assays can be especially useful for studying the aetiology of TD. The first objective of this study was to evaluate the utility of the commercially available multiplex PCR (xTAG(®) Gastrointestinal Pathogen Panel (GPP)) for the diagnosis of TD. A total of 185 stool specimens obtained from 174 patients were processed using the GPP assay. This test detected 86 pathogens in 67 stool samples (67/185, 36.2%). Sixteen pathogens out of 86 were also detected by routine testing. The remaining pathogens (n = 70) required further confirmation by alternative techniques. Finally, 60 out of 70 pathogens were confirmed. The second objective of this study was to analyse the aetiology of TD based on the results obtained by the GPP test and routine methods. The primary pathogens causing TD were Shigella (24.2%) followed by enterotoxigenic Escherichia coli (ETEC) (23.2%), enteroaggregative E. coli (14.7%) and Giardia (13.7%). Significant regional differences were observed for ETEC with 19.4% of TD cases acquired in Africa, 11.3% in Asia and none in South Central (SC) America (p 0.01), Giardia was found in 1.5% of cases among those who had travelled to Africa, 14.1% of those who had travelled to Asia and 3% of those who had travelled to SC America (p 0.01). In conclusion, the GPP test improved the detection of enteropathogens and allowed better assessment of the aetiology of TD.
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A family cluster of giardiasis with variable treatment responses: refractory giardiasis in a family after a trip to India. Clin Microbiol Infect 2014; 20:O135-8. [DOI: 10.1111/1469-0691.12327] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Revised: 06/27/2013] [Accepted: 07/03/2013] [Indexed: 11/26/2022]
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Antimicrobial resistance in Shigella spp. causing traveller's diarrhoea (1995-2010): a retrospective analysis. Travel Med Infect Dis 2013; 11:315-9. [PMID: 23886737 DOI: 10.1016/j.tmaid.2013.06.010] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2013] [Revised: 06/26/2013] [Accepted: 06/27/2013] [Indexed: 11/16/2022]
Abstract
BACKGROUND Shigellosis is a global human health problem causing an important morbidity among travellers returning from tropical areas. This study was aimed to describe the evolution of antimicrobial resistance profile in Shigella spp. isolated between the years 1995-2010 in patients with traveller's diarrhoea (TD) returning from tropical areas. METHODS The levels of antimicrobial resistance were tested in a total of 191 Shigella spp. isolated during the period from 1995 to 2010. RESULTS A decrease of cases of diarrhoea caused by Shigella has been observed in recent years. A wide spectrum of antibiotic resistance was observed among Shigella spp. These isolates showed high levels of resistance to tetracycline (84%), co-trimoxazole (75.5%), and ampicillin (45.5%). The resistance was low to ciprofloxacin (2.1%), azithromycin (3.9%) and furazolidone (8.4%). According to the period, in the case of ampicillin, amoxicillin plus clavulanic acid, chloramphenicol, values of resistance were significantly decreasing from 1995-2000 to 2001-2010, (62.5% vs. 28.4%, 19.8% vs. 6.6%, 23.4 vs. 10.4%, respectively). Meanwhile in nalidixic acid and tetracycline the evolution of resistance has increased over time. CONCLUSIONS A decrease in the isolation number of Shigella spp. causing TD has been observed. Differential trends in the evolution of the levels of resistance to the tested antibacterial agents have been observed.
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Abstract
OBJECTIVES To estimate dementia prevalence in Spain. MATERIALS AND METHODS Nine probabilistic and geographically defined samples participated. A screening design based on the MMSE was implemented. Positively screened individuals underwent clinical evaluation. The total number of cases in Spain was estimated. Prevalence was confronted to that of other European countries. RESULTS Five hundred and forty-six persons aged ≥75 participated, 49 had dementia (35 with Alzheimer's disease [AD], 10 with vascular dementia [VD], 4 other; 25 first diagnosed in the study). Age- and sex-adjusted prevalence and estimated nationwide cases were 7.5% (95% CI 5.4-9.7), 5.6 (95% CI 3.7-7.5) and 1.4 (95% CI 0.5-2.3), and 290,000 (95% CI 208,000-372,000), 214,000 (95% CI 141,000-288,000) and 54,000 (95% CI 20,000-88,000) for dementia, AD and VD, respectively. CONCLUSIONS Dementia prevalence in Spain is comparable to other European populations, while a high number of undiagnosed cases live in the community. The potential impact of Mediterranean diet, hypertension control and decreasing vascular risk factors is discussed.
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Abstract
A cluster of 56 patients returning from Gambia with falciparum malaria has been noted in several countries of the European Union since September this year. TropNetEurop, the European Network on Imported Infectious Disease Surveillance, collected and reported the cases. Lack of awareness and, consequently, of prophylactic measures against malaria were apparent in the majority of patients.
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Incidence of respiratory viruses among travelers with a febrile syndrome returning from tropical and subtropical areas. J Med Virol 2008; 80:711-5. [PMID: 18297697 PMCID: PMC7166809 DOI: 10.1002/jmv.21086] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Fifty million people are estimated to travel from industrial countries to the tropics annually. In spite of exhaustive studies and widely different diagnosis among returned patients, some cases of febrile illnesses remain without an etiological diagnosis, suggesting that these cases could be due to viral respiratory tract infections. From August 2005 to October 2006, 118 febrile patients without a specific diagnosis in their first visit at the Center for International Health of the Hospital Clínic of Barcelona were included. In all of them, in order to study respiratory viruses, a nasopharyngeal swab was collected. Clinical and radiological features and epidemiological data, as well as other samples for microbiologic studies, were also collected during consultation. Based on the physician's judgment at the time of consultation, patients were classified into four groups: respiratory symptoms (62%), febrile syndrome with nonspecific symptoms (24%), digestive symptoms (10%), and patients presenting both respiratory and digestive symptoms (4%). A pathogen microorganism was detected in 61 patients (52%). Respiratory viruses were detected in 44 out of 118 (37%) travelers included in the study, representing 56% of the patients with respiratory symptoms. The most frequently viruses detected were influenza virus (38%), rhinovirus (23%), adenovirus (9%), and respiratory syncytial virus (9%). Respiratory viruses have been shown to play an important role in imported fever. In light of the fact that international tourism is an increasing phenomenon, new strategies to prevent the spread of respiratory viruses should be considered, specially for influenza when a vaccine is available. J. Med. Virol. 80:711–715, 2008. © 2008 Wiley‐Liss, Inc.
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Quinolone resistance among Shigella spp. isolated from travellers returning from India. Clin Microbiol Infect 2008; 14:279-81. [DOI: 10.1111/j.1469-0691.2007.01903.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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[Prevalence of vascular risk factors among Spanish populations aged 70 years and over, as reported in door-to-door studies on neurological diseases]. Neurologia 2007; 22:138-46. [PMID: 17364251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2023] Open
Abstract
INTRODUCTION The aim of this study was to re-analyze door-to-door studies on neurological diseases among the elderly, in which vascular risk factors (VRF) were studied, describing methodological characteristics and prevalence of VRF. METHODS The surveys were identified in two phases. They were aimed at ascertaining prevalence of stroke, dementias or Parkinsonisms and, at the time of individual screening, had collected data on at least three of the following VRF: arterial hypertension (AHT), smoking habit, diabetes mellitus and hypercholesterolemia. A questionnaire was drawn up to collect the data reported in each study, and a database was constructed. VRF prevalences were quantified and analyzed using logistic regression. RESULTS The total of the re-analyzed population was 12,510 persons aged 70 years and over, residents in seven geographic areas during the period 1994-2002. Information available on VRF was essentially self-reported. The prevalence of self-reported AHT was 25.7 % in men and 44.2 % in women, and that of measured AHT was 61 % and 71.9 %, respectively. Populations with arterial pressure obtained by direct measurement registered 138 higher risks (OR: 1.74; 95 % CI: 1.51-2.01, and OR: 1.48; 95% CI: 1.33-1.64). Reported prevalence of diabetes, hypercholesterolemia and smoking habit were 14.3 %, 23.3% and 8.5 %, respectively. CONCLUSIONS There was a high prevalence of VRF among the Spanish elderly population. However, its relationship with dementia, Parkinsonisms and cerebrovascular disease could not be studied due to the poor quality of the VRF data. The differences between measured and self-reported arterial pressure suggest the existence of undetected AHT and wide scope for prevention.
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P1510 Traveller diarrhoea. Aetiological study in a tropical medicine unit. Int J Antimicrob Agents 2007. [PMCID: PMC7135132 DOI: 10.1016/s0924-8579(07)71349-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Use of a short fragment of the C-terminal E gene for detection and characterization of two new lineages of dengue virus 1 in India. J Clin Microbiol 2006; 44:1519-29. [PMID: 16597885 PMCID: PMC1448656 DOI: 10.1128/jcm.44.4.1519-1529.2006] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Here we propose the use of a 216-nucleotide fragment located in the carboxyl terminus of the E gene (E-COOH) and a pairwise-based comparison method for genotyping of dengue virus 1 (DENV-1) strains. We have applied this method to the detection and characterization of DENV-1 in serum samples from travelers returning from the tropics. The results obtained with the typing system correlate with the results obtained by comparison of the sequences of the entire E gene of the strains. The approach demonstrates utility in plotting the distribution and circulation of different genotypes of DENV-1 and also suggests the presence of two new clades of Indian strains. The integration of the method with an online database and a typing characterization tool enhances its strength. Additionally, the analysis of the complete E gene of DENV-1 strains suggested the occurrence of a nondescribed recombination event in the China GD23-95 strain. We propose the use of this methodology as a tool for real-time epidemiological surveillance of dengue virus infections and their pathogenesis.
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A generalized kinetic model for the partial oxidation of n-butane to maleic anhydride under aerobic and anaerobic conditions. Chem Eng Sci 2006. [DOI: 10.1016/j.ces.2006.05.023] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Abstract
The aim of the study presented here was to assess the incidence of histoplasma infection in a cohort of 342 individuals in Spain who had traveled to Latin America for the first time. The histoplasmin skin test was positive in 20% of the travelers, and Central America posed a higher risk for infection than South America (p=0.013). Sleeping outdoors (p=0.031) and the duration of travel (p=0.016) were also identified as significant risk factors. Serological testing demonstrated poor overall sensitivity for detecting infection in the travelers, but for the symptomatic acute cases the results were improved. Histoplasmosis must be considered in patients presenting with fever (odds ratio=3.51 [1.52-8.12]) or cough (odds ratio=4.24 [1.32-13.58]) after visiting Latin America. The results of this study have public health implications and indicate the risks of acquiring histoplasmosis should be included in pre-travel counseling.
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Analysis of the mechanisms of resistance to several antimicrobial agents in Shigella spp. causing travellers' diarrhoea. Clin Microbiol Infect 2006; 11:1044-7. [PMID: 16307563 DOI: 10.1111/j.1469-0691.2005.01277.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Eighty isolates of Shigella spp. (37 Shigella flexneri and 43 Shigella sonnei) from patients with travellers' diarrhoea were studied. Susceptibility tests revealed high levels of resistance, especially to ampicillin (65%), tetracycline (78%) and trimethoprim (75%), and particularly among the S. flexneri isolates. Dihydrofolate reductase 1 genes (dfrA1) were prevalent among the trimethoprim-resistant isolates, while oxa genes predominated among the ampicillin-resistant isolates. Chloramphenicol resistance was associated with production of chloramphenicol acetyltransferase, while nalidixic acid-resistant isolates had a single mutation in the gyrA gene. The results indicate a continuing need for resistance surveillance and rational use of antimicrobial agents.
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Genetic diversity of Shigella species from different intercontinental sources. INFECTION GENETICS AND EVOLUTION 2005; 5:349-53. [PMID: 16168941 DOI: 10.1016/j.meegid.2004.11.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2004] [Revised: 11/18/2004] [Accepted: 11/24/2004] [Indexed: 11/17/2022]
Abstract
One hundred and twenty three strains of Shigella spp. (mostly Shigella sonnei and Shigella flexneri) were isolated between 1995 and 2000 from patients suffering from traveller's diarrhoea. Seventy nine of them have been typed by digestion of their chromosomal DNA with Xba I and pulsed field gel electrophoresis. Results show a high degree of heterogeneity in both S. sonnei and S. flexneri isolates. This is the first time that the molecular typing of such a high number of geographically unrelated isolates of Shigella sp. is carried out, showing a high level of genomic re-arrangement.
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Neurocysticercosis and population movements: analysis of 23 imported cases in Spain. Eur J Clin Microbiol Infect Dis 2003; 22:382-4. [PMID: 12783280 DOI: 10.1007/s10096-003-0936-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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[Myastenia gravis unmasked by botulinum toxin]. Neurologia 2003; 18:234-5. [PMID: 12721872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023] Open
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[Venlafaxine titration dosage in depressive in-patients. A series of cases]. ACTAS ESPANOLAS DE PSIQUIATRIA 2003; 31:31-4. [PMID: 12590370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
This series of patients was gathered to assess the use of last and slow titration dosage of venlafaxine in in-patients with major depression and to evaluate the action onset. An observational open study was performed in 3 centers in 18 in-patients. Nine patients were included in fast titration dosage group (FT) and 9 in slow titration dosage group (ST). As results, it was found that the FT group showed faster improvement than the ST group in HAM-D score. This improvement was sustained to the final visit, with a lower score in the FT group (6.75) than the ST group (10.67). MADRS scores up to the 15th visit were similar; however, the score was lower in the ST group on the 20th visit. Improvement was sustained to the final visit, the FT group score being lower (6.50) than the ST group score (14). CGI - i mprovement and CGI-seve rity scores we re similar to the above mentioned results. The most common events in both groups were considered mild. The data of these patients show faster response to antidepressant therapy with faster titration dosage, with maintenance of the molecule's tolerability profile.
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Abstract
Nine hundred and ten schizophrenic inpatients suffering from acute psychotic episodes were included in a naturalistic study. Patients were prescribed treatment with olanzapine (OLZ) or with typical antipsychotic (TYP) drugs. Patients receiving another atypical antipsychotic were excluded. Of the whole sample, 483 (53.4%) were treated with olanzapine and 421 (46.6%) with typical antipsychotics. Three specific subpopulations of greater severity were defined: patients with prominent psychotic symptoms, agitated patients, and patients initially treated with intramuscular (i.m.) medication because of their acute clinical condition. Severity of illness was assessed using the Clinical Global Impression (CGI) scale for severity, the Brief Psychiatric Rating Scale (BPRS) and the Nursing Observational Scale for Inpatient Evaluation. Baseline differences were adjusted per data analysis. The mean change from baseline to endpoint of overall symptomatology (total BPRS score) was significantly greater in the olanzapine group compared to the typical antipsychotic-treated group, both in the sample of patients with prominent positive symptoms (P < 0.001) and in the sample of agitated patients (P =0.015). Significant differences were also found in BPRS positive scores, BPRS negative scores and CGI scores in these two populations. Patients who had received previous i.m. drugs showed no statistically significant differences in symptomatic improvement between both treatments groups, except for a more favourable response of BPRS negative subscores in the olanzapine group (P =0.015). The results suggest that olanzapine may be considered as a first line treatment for severely psychotic inpatients with schizophrenia.
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Comparative, clinico-epidemiologic study of Schistosoma mansoni infections in travellers and immigrants in Spain. Eur J Clin Microbiol Infect Dis 2002; 21:219-23. [PMID: 11957026 DOI: 10.1007/s10096-001-0683-z] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The study presented here aimed to contrast the marked clinical differences in the presentation of Schistosoma mansoni-induced infection between immigrants and travellers entering Spain from endemic regions, and to elucidate the therapeutic implications of these infections. A total of 200 African immigrants and 80 travellers with schistosomiasis were included in the study. Among the immigrants, 25 patients were diagnosed with Schistosoma mansoni infection; 15 presented with nonspecific symptoms, and 10 were asymptomatic. Hepatosplenomegaly was observed in nine. Among the travellers, 14 were diagnosed with Schistosoma mansoni infection; four were asymptomatic, four had Katayama syndrome, four had diarrhoea, and two had prostatitis. All of the patients were treated with praziquantel. Patients diagnosed with Katayama syndrome received praziquantel and dexamethasone for 3 days, with the praziquantel treatment being repeated at 3-4 weeks. The significant differences observed in the clinical presentation of Schistosoma mansoni-induced infection, indicate that a well-differentiated therapeutic strategy is required when this infection is diagnosed in a non-immune (traveller) or a semi-immune (immigrant) patient.
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In vitro activity of rifaximin against bacterial enteropathogens causing diarrhoea in children under 5 years of age in Ifakara, Tanzania. J Antimicrob Chemother 2001; 47:904-5. [PMID: 11389133 DOI: 10.1093/jac/47.6.904] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Abstract
BACKGROUND To know the sexual behavior of Spanish international travelers and its association with geographical destinations and sexually transmitted disease acquisition. PATIENTS AND METHOD 1,008 consecutive patients who attended a tropical out-patient clinic during 26 months were surveyed by means of a previously designed clinical questionnaire that included specific questions regarding sexual practices during the trip. RESULTS 19% of travelers had sexual intercourse; 53.6% of them having employed a condom. There were no differences regarding gender or destination. 3.4% of travelers who had unprotected sexual intercourse acquired HIV. CONCLUSIONS A high proportion of travelers have unprotected, risk sexual contacts. A low but alarm
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[Cyclosporiasis: a clinical and epidemiological study in travellers with imported Cyclospora cayetanensis infection]. Med Clin (Barc) 2001; 116:461-4. [PMID: 11333706 DOI: 10.1016/s0025-7753(01)71870-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
BACKGROUND To assess the clinical and epidemiological characteristics of the enteritis produced by Cyclospora cayetanensis. PATIENTS AND METHOD A microbiological, epidemiological and clinical protocol in travelers to tropical and temperate areas affected by travelers diarrhea (TD). RESULTS C. cayetanenesis was isolated from 55 patients. 96% of them suffered TD. Persistent diarrhea (> 2 weeks) was present in 69% and weight loss > or = 3 kg in 38%. In 36% of cases, TD began after returning from the trip. Although C. cayetanensis has a cosmopolitan distribution, it was mostly isolated from travellers to Latin America, the Indian subcontinent and South East Asia. In only five cases a potential risk factor was detected: strawberries (3), buffalo's milk (1) and marinated fish "ceviche" (1). CONCLUSIONS C. cayetanensis is an emerging enteropathogen, isolated in 2-4% of Spanish travellers suffering from TD, and should be considered in the diferential diagnosis of this clinical entity.
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Abstract
BACKGROUND Neurocysticercosis is the CNS involvement caused by Taenia solium larvae and the most frequent cerebral parasitation. It has a cosmopolitan distribution but endemic in the low income countries. The paper analizes the geographic origin, clinical characteristics of patients and the diagnostic and therapeutic modalities. PATIENTS AND METHOD Retrospective revision of clinical files in patients with the diagnosis of neurocysticercosis between the period January 1990 to March 2000. RESULTS Ten patients were included of which only one was of Spanish nationality. The others were immigrants or travellers to Central/South America (7), Africa (1) and South East Asia (1). Nine patients presented with convulsive crisis, generalized in 7 and 3 cases suffered headaches. The diagnosis was obtained through biopsy technique (3 cases) and the rest through CT scan or MR and serology. ELISA specific serology was positive in 60% of cases. Eight patients were treated with praziquantel or albendazol solely with good clinical evolution. CONCLUSIONS Neurocysticercosis is prevalent among the immigrant population and in our case imported mostly from Latin America. Diagnosis is reached through imaging and serological techniques. Treatment with praziquantel or albendazol improves the clinical picture and controls the convulsive crisis.
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Abstract
BACKGROUND Awareness about the clinical presentation and the clinical and terapeutical management of acute schistosomiasis in the non immune traveller. PATIENTS AND METHOD Febrile patients with epidemiological history of swimming in endemic areas. Prospective protocol 1984-1999. RESULTS 21% of patients with a diagnosis of schistosomiasis developed the Katayamna syndrome. Nine patients had also a clinical picture of swimmer's itch dermatitis. Diagnosis was suspected on the basis of epidemiology, fever and eosinophilia. Diagnostic confirmation was established through serology in 10 cases and parasitology in 11. In 2 cases both methods were positive. CONCLUSIONS Fever and eosinophilia after being exposed to infested waters should rise alarm on the syndrome. Availability of serological tests with an earlier positivization and badly needed at present. In Spain two trips, to Mali (Dogon country) and Uganda, are responsible for 75% of the infections. The subject should be introduced routinely in our travellers clinics.
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[Incidence of extrapyramidal symptoms during treatment with olanzapine, haloperidol and risperidone: results of an observational study]. ACTAS ESPANOLAS DE PSIQUIATRIA 2001; 29:25-32. [PMID: 11333516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
OBJECTIVES To analyze the incidence of extrapyramidal symptoms (EPS) and the concomitant use of anticholinergic drugs in outpatients diagnosed of schizophrenia treated with olanzapine (OLZ) in comparison with haloperidol (HAL) and risperidone (RIS) under routine clinical practice conditions. MATERIAL AND METHODS The analysis was carried out on the basis of the information obtained in the EFESO study, an observational, prospective study carried out in outpatients diagnosed of schizophrenia and treated with olanzapine compared to other antipsychotic agents used in the clinical practice. The incidence of EPS in the OLZ treated group compared to the haloperidol and risperidone treatment groups in which over 100 patients were included is analyzed in the present work. The study duration was 6 months and the data were collected by 293 psychiatrists from mental health care areas. RESULTS The percentage of patients who presented at least one adverse event (AE) (p 3/4 0.001) was less in the OLZ groups (47.8%) compared to those of the HAL (79.8%) and RIS (57.2%) subgroups. A lower percentage of patients treated with OLZ (36.9%) presented EPS in comparison to the RIS (49.6%) and HAL (76%) subgroups (p 3/4 0.001). A lower rate of patients from the OLZ group (10.2%) received anticholinergic treatments compared to the RIS (19.9%) and HAL (44%) subgroups (p< 0.001 in both cases). CONCLUSIONS OLZ-treated patients presented a lower incidence of EPS and required less anticholinergic treatment than the HAL and RIS treated patients. These results, obtained in naturalistic conditions, coincide with the conclusions reached in randomized clinical trials carried out prior to the marketing of OLZ.
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Carcinoma primario de apéndice diagnosticado como cáncer de ovario avanzado. CLINICA E INVESTIGACION EN GINECOLOGIA Y OBSTETRICIA 2001. [DOI: 10.1016/s0210-573x(01)77109-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Enteroaggregative escherichia coli virulence factors in traveler's diarrhea strains. J Infect Dis 2000; 182:1780-3. [PMID: 11069254 DOI: 10.1086/317617] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2000] [Revised: 08/15/2000] [Indexed: 11/03/2022] Open
Abstract
Enteroaggregative Escherichia coli (EAEC) is associated with diarrhea in Spanish travelers to developing countries. In this study, the polymerase chain reaction was used to test EAEC isolates for genes encoding putative virulence factors, including EAEC adhesins, the plasmid-encoded toxin (Pet), a heat-stable enterotoxin (EAST), and Shigella enterotoxins 1 and 2 (ShET1 and ShET2). Findings included a low prevalence of genes for Pet (4.3%), ShET2 (4.3%), and the adherence factor AAF/II (8.7%). The overlapping genes encoding the ShET1 and the Pic mucinase were present in most EAEC strains tested (56.5%); however, some strains that carried this locus did not produce both proteins, as determined by Western immunoblot. Surprisingly, ShET1 and ShET2 genes were also found in other E. coli pathotypes, as was the EAST toxin locus. These findings underscore the heterogeneity of EAEC strains and suggest that the ShET1 may be an important virulence factor in traveler's diarrhea.
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Abstract
A matched case-control study was conducted in the Maternal and Child Health Clinic (MCH) in Ifakara, Tanzania, during the rainy season in order to elucidate the risk factors for and etiology of diarrheal diseases in children under 5 years of age. Cases (103) and controls (206) were matched for sex and age group. Precoded questionnaires with demographic details, clinical history, and physical signs were completed. Stools samples were collected for bacterial, parasitological, and viral studies. A high number of siblings (odds ratio [OR], 0.86; P = 0.027), the number of siblings surviving (OR, 0.82; P = 0.007), the birth order (OR, 0.85; P = 0.018) and the distance from the house to the water source (OR, 0.33; P = 0.011) were associated with the risk of diarrhea. There were high rates of enteropathogen isolates in stool samples from children without diarrhea (52.23%). Shigella species were the only enteropathogen statistically related with diarrhea (OR, 2.90; P < 0.029). Enterotoxigenic, enteropathogenic, and enteroaggregative strains of Escherichia coli were not related with diarrhea, and neither were Giardia lamblia or Salmonella species.
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[Diagnostic usefulness of the intradermal test with histoplamin in non-endemic areas of histoplasmosis]. Rev Iberoam Micol 2000; 17:97-101. [PMID: 15762801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023] Open
Abstract
The histoplasmosis in Spain is an imported disease presenting in most of case diagnostic difficulties. In this paper, the intradermal skin test with Histoplasma capsulatum antigen as diagnostic method in immunocompetent patients with clinical and radiological signs compatible with histoplasmosis after being visited Central and South American endemic counties, in which this mycosis is endemic. Nine Spanish patients coming from different countries of Latin America with fever and acute respiratory symptoms compatible with histoplasmosis were studied. Other nine accompanying subjects and five controls were also evaluated. Patients underwent mycological cultures and and serological tests for H. capsulatum. Intradermal test with 1% histoplasmine were done in all patients. Serology and skin tests tests were also performed in accompanying people. Intradermal were done in healthy controls. Skin test with histoplasmine were positive in seven of the nine patients. Six of these showed precipitating antibodies against the same antigen. H. capsulatum was only isolated from bone marrow biopsy samples in one patient. The seven patients were given itraconazole by oral route and all symptoms improved after 2 and 4 weeks. In five accompanying subjects the skin test were also positive so that a subclinical histoplasmosis was diagnosed. In the remaining patients and healthy accompanying subjects histoplasmosis infection was excluded. In non endemic geographical areas of histoplasmosis intradermal skin test with histoplasmin when used in immunocompetent individuals is an easy and reliable method for the diagnosis of this mycosis as well as for epidemiological studies.
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Abstract
Histoplasma capsulatum is a dimorphic fungus endemic in the American continent but not in Europe, where cases are usually imported. Its favorite habitat is in warm humid soils. Guano from birds and bats enhance the sporulation of the mycelial phase.1 Man acquires H. capsulatum through inhalation of spores. Most people infected by this fungi remain asymptomatic, but around 10-50% can start an illness ranging from acute pulmonary histoplasmosis to chronic histoplasmosis. In both, there is close clinical resemblance to pulmonary tuberculosis. Immunodepressed patients undergo a more severe form of the disease, usually presenting in the acute disseminated form. We present seven immunocompetent patients with histoplasmosis acquired after traveling to several American countries.
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[Assessment of 2 serologic tests (indirect immunofluorescence and ELISA) for the detection of antimalaria antibodies]. Med Clin (Barc) 1999; 113:754. [PMID: 10680129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
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[Diagnostic value of intradermoreaction with histoplasmin in non-endemic areas of histoplasmosis]. Med Clin (Barc) 1999; 113:37-8. [PMID: 10422078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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[Bibliographic searching. Introduction and theoretical basis]. Aten Primaria 1999; 23:306-9. [PMID: 10341464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023] Open
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[Dengue: a re-emerging disease. A clinical and epidemiological study in 57 Spanish travelers]. Med Clin (Barc) 1998; 111:583-6. [PMID: 9859093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Dengue infection is nowadays considered a re-emergent disease. It has a worldwide tropical and subtropical distribution. The dengue virus in a member of the flavivirus family composed by 4 different serotypes. The virus is transmitted by mosquitos of the Aedes genus. With the increment of travels to the endemic areas, dengue is now observed frequently in our country. We analyzed 57 patients, 30 with imported dengue (ID) and 27 with dengue fever suffered during the trip (DDT). This series is compared with other published ones and a review of the subject is presented. Patients with ID followed a protocol as a febril syndrome returning from the tropics. Dengue was diagnosed through a compatible clinico-epidemiological history, the absence of other ferbil illness and positivity of specific serology. All patients had travelled to endemic areas (Central America 28 cases, Indian subcontinent 15, South-East Asia 10, South America 2, West Africa one, and Pacific one). The following were the most important clinical characteristics: fever and asthenia (100%), headache (98%), mialgia (84%), arthralgia (72%), morbilliform rash (61%) and retroocular pain (65%). For ID cases, the most helpful analitical results were: leucopenia (70%), reactive lymphocytes in peripheral blood smear (70%), thrombocytopenia (70%), and increased hepatic enzymes ALAT (53%), ASAT (63%) and LDH (100% in the 7 patients tested for this enzyme). Dengue must be included in differential diagnosis of fever in patients coming back to travels to tropical areas.
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Enteroaggregative Escherichia coli strains as a cause of traveler's diarrhea: a case-control study. J Infect Dis 1998; 177:1409-12. [PMID: 9593036 DOI: 10.1086/517826] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
To elucidate the importance of enteroaggregative Escherichia coli (EAggEC) strains as a cause of traveler's diarrhea in Spanish travelers, a prospective case-control 1:1 study was done in a university hospital clinic for travelers. EAggEC strains were isolated from 23 of 165 case-patients and from 4 of 165 controls (P = .0003). In 16 patients, this was the only isolate recovered. Six of the EAggEC-positive isolates from the case-patients and 2 from the controls were positive for the enteroaggregative stable toxin type 1 gene. Other enteropathogens were also isolated. Shigella and enterotoxigenic E. coli strains showed significant differences between cases and controls (P = .0023 and P < .0001, respectively). Geographic distribution of the EAggEC strains was homogeneous, and the clinical symptom, secretory diarrhea, did not differ statistically with that for the enterotoxigenic E. coli strains. EAggEC strains are a cause of secretory diarrhea in Spaniards traveling to developing countries.
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[Assessment of an interventional study on iodine deficiency in Burkina Faso, 1990-1993. Direction de la Santé de la Famille (Burkina Faso)]. Aten Primaria 1998; 21:462-5. [PMID: 9656585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
OBJECTIVES To find how the urinary parameters of iodine excretion evolved in a community with deficiencies, after administering iodine orally and IM in two provinces in Burkina Faso; to recommend a national strategy to tackle iodine deficits. Design. A longitudinal survey before and after the iodine was given (12 months). Descriptive analysis of the data. SETTING Provinces of Namentenga and Passoré in Burkina Faso. PARTICIPANTS The general population of the two provinces who satisfied age-sex criteria: males from 0 to 25, females from 0-45. Randomised two-stage sampling. 423 people in all took part (210 in Namentenga and 213 in Passoré). INTERVENTIONS The administration of 1 ml of iodised oil (Lipiodol) orally in Namentenga and IM in Passoré. MEASUREMENTS AND MAIN RESULTS The urinary parameters of micrograms of iodine per gr. of Creatinine, and micrograms of iodine per dl of urine, were used. Figures for normalisation of the urinary parameters 12 months after iodisation was significantly higher in Passoré province, where iodine was administered IM. CONCLUSIONS The intramuscular pathway has more longlasting effects, but the characteristics of Burkina Faso's health system and the feasibility of a medium or long-term intervention make it advisable that iodine supplements be administered orally.
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Atrazine interaction with tropical humic substances by Enzyme Linked Immunosorbent Assay. ACTA ACUST UNITED AC 1998. [DOI: 10.1051/analusis:1998122] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Abstract
Traveler's diarrhea is the most common health problem of international travelers. Although enterotoxigenic Escherichia coli seems to be the most frequent cause of traveler's diarrhea, many other microorganisms, such as Campylobacter jejuni, may cause this infectious disease. Campylobacter jejuni is recognized as a leading cause of enteritis in humans both in developing and in developed countries. However, a few reports on the incidence and antimicrobial resistance of Campylobacter spp. as a cause of traveler's diarrhea have been published. The limited data on the treatment of C. jejuni infections suggest that ciprofloxacin may shorten the duration of symptoms. However, treatment failure associated with the emergence of quinolone-resistant strains of C. jejuni has been documented. The purpose of this study was to determine the prevalence of C. jejuni associated with traveler's diarrhea and to analyze the geographic distribution as well as the clinical features and susceptibility to antibiotics.
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Prevalence of diarrheagenic Escherichia coli strains detected by PCR in patients with travelers' diarrhea. Clin Microbiol Infect 1998; 4:682-688. [PMID: 11864275 DOI: 10.1111/j.1469-0691.1998.tb00652.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE: To determine the prevalence of the different categories of diarrheagenic Escherichia coli, enterotoxigenic E. coli (ETEC), enteroinvasive E. coli (EIEC), verotoxin-producing E. coli (VTEC), enteroaggregative E. coli (EAggEC), diffusely adherent E. coli (DAEC), and enteropathogenic E. coli (EPEC), associated with travelers' diarrhea. METHODS: Stool specimens from 350 patients with travelers' diarrhea were collected between 1994 and 1996. The virulence factors of the diarrheagenic E. coli isolated were detected by PCR technique, in subcultures of single colonies of all morphotypes of E. coli observed in culture on MacConkey agar. RESULTS: ETEC (15.7%), EAggEC (13.4%) and DAEC (9.14%) are significantly more prevalent than EIEC (3.4%), EPEC (2.86%) and VTEC (0.86%) (p<0.05; z-test). The prevalence of ETEC and EAggEC was similar in all geographic areas visited. CONCLUSIONS: PCR is a rapid and specific technique to use in the identification of the different categories of diarrheagenic E. coli and greatly increases the yield of potential enteropathogens from cases of travelers' diarrhea. Not only ETEC but also EAggEC and DAEC strains play a major role in the etiology of travelers' diarrhea, whereas EIEC, EPEC, and VTEC strains play a minor role, leading to the question of whether it is necessary to search routinely for these three types of E. coli in diagnostic laboratories.
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Schistosomiasis of the male genital tract: transrectal sonographic findings. J Urol 1997; 158:1491-3. [PMID: 9302149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
PURPOSE Schistosomal infection of the prostate and seminal vesicles is seldom found in clinical practice and rarely mentioned in the radiological literature. However, the presence of schistosoma eggs has been reported in 50% of postmortem studies of the prostate and seminal vesicles performed in endemic areas. MATERIALS AND METHODS We report the results of transrectal studies of the prostate and seminal vesicles performed in 9 white travelers (age less than 35 years) who complained of hemospermia. Diagnosis was confirmed by positive identification of parasites in the urine and semen. RESULTS Prostatic calcification was observed in 7 cases, hyperechogenic foci in 2, increase in prostate size in 2, calcifications in the seminal vesicles in 1 and dilatation of the seminal vesicles and ejaculatory ducts in 1. After treatment, prostate size and hyperechogenic foci were reduced. In some cases, calcified lesions diminished during followup. CONCLUSIONS Prostatic and seminal calcifications should alert physicians to the possibility of schistosoma infection when they are found in young patients who have been in endemic areas. Parasitological study of semen as well as urine confirms and increases the number of diagnoses.
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Isolation of verotoxin-producing Escherichia coli O-rough:K1:H7 from two patients with traveler's diarrhea. J Clin Microbiol 1997; 35:2279-82. [PMID: 9276402 PMCID: PMC229954 DOI: 10.1128/jcm.35.9.2279-2282.1997] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Two Escherichia coli O-rough:K1:H7 strains producing verotoxin 1 that were isolated from stool samples of two travelers with diarrhea who consulted our clinic after trips to the Indian Subcontinent and Central America were characterized. Both strains were sorbitol negative, the same phenotype presented by E. coli O157:H7, but in contrast they were beta-glucuronidase positive. Low-frequency restriction analysis of chromosomal DNA and pulsed-field gel electrophoresis and repetitive extragenic palindrome-PCR showed that both strains were epidemiologically related. The illness was self-limited in both cases but involved long-duration, watery diarrhea (10 to 50 days) accompanied by abdominal cramps and flatulence. This serotype should be taken into account as a possible cause of traveler's diarrhea.
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[Severe Plasmodium falciparum malaria. Description of 5 cases]. Rev Clin Esp 1997; 197:631-4. [PMID: 9411568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
In the last few years a considerable number of imported malaria has been reported in Spain, probably due the increased tourism to areas with endemic malaria, particularly with P. falciparum. This is the species more frequently associated with severe complications and the only one capable of causing cerebral malaria. In this report we review five cases of malaria which required intensive care because of their severity. None of the patients had received chemoprophylaxis. In all cases the admission criterion to the intensive care unit was the organic failure of one or more systems (renal failure and disseminated intravascular coagulation [DIC] mainly) or the presence of changes in the central nervous system. Parasitemia at admission was higher than 5% in all patients. One patient died on account of cerebral malaria. Only one patient had severe complications not directly associated with malaria. In patients who already have severity criteria, a negative parasitemia test during the clinical course does not necessarily implies a clinical improvement nor does it exclude the emergence of complications. On the other hand, a low parasitemic degree is never a contraindication for admission to the intensive care unit when severity criteria are present.
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