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1.
Transfus Med ; 28(5): 386-391, 2018 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-29781549

RESUMEN

BACKGROUND: In patients undergoing open surgery for a ruptured abdominal aortic aneurysm (rAAA), survivors demonstrate a high platelet count, and proactive administration of platelets (and fresh frozen plasma) appears to influence mortality. OBJECTIVES: This trial investigated the effect of platelets administered before transport to surgery. METHODS: In a prospective study design, patients were randomised to receive platelets (intervention; n = 61) or no platelets (control; n = 61) before transport to vascular surgery from 11 local hospitals. The study was terminated when one of the vascular surgical centres implemented endovascular repair for rAAA patients. RESULTS: Thirty days after surgery, mortality was 36% for patients with intervention vs 31% for controls (P = 0·32). Post-operative thrombotic events (14 vs 15; P = 0·69), renal failure (11 vs 10; P = 0·15) and pulmonary insufficiency (34 vs 39; P = 0·15) were similar in the two groups of patients. No adverse reactions to platelet administration were observed. In addition, length of stay in the intensive care unit was unaffected by intervention. CONCLUSIONS: For patients planned for open repair of a rAAA, we observed no significant effect of early administration of platelets with regard to post-operative complications and stay in the ICU or in hospital and also no significant effect on mortality.


Asunto(s)
Aneurisma de la Aorta Abdominal , Rotura de la Aorta , Transfusión de Plaquetas , Procedimientos Quirúrgicos Vasculares , Anciano , Aneurisma de la Aorta Abdominal/mortalidad , Aneurisma de la Aorta Abdominal/terapia , Rotura de la Aorta/mortalidad , Rotura de la Aorta/terapia , Femenino , Estudios de Seguimiento , Humanos , Masculino , Complicaciones Posoperatorias , Estudios Prospectivos , Procedimientos Quirúrgicos Vasculares/mortalidad
2.
Transbound Emerg Dis ; 64(5): 1519-1529, 2017 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-27393719

RESUMEN

The main objective of this study was to characterize spatial patterns of white-tailed deer (Odocoileus virginianus) movement related to bovine tuberculosis (bTB) transmission risk to cattle in north-western Minnesota. Twenty-one adult deer (16 females and 5 males) were captured during winter (January-March) 2011 in areas adjacent to where an outbreak (2005-2009) of bTB occurred in deer and cattle. Deer were fitted with GPS collars programmed to collect deer location information every 90 min over a 15-month period. The exact locations of cattle, cattle feeding areas, and stored forage that were available to collared deer were assessed seasonally. In total, 47% (n = 9) of collared deer survived to the end of the study. Causes of mortality included wolves (n = 6), hunters (n = 1) and unknown (n = 2); additionally, 2 deer were censored due to collar malfunctions. Our results indicated that 5 deer (25%) had home ranges that included 6 cattle farms (20%). Most (77%) of the deer visits occurred in areas where cattle were present, with most visits (60%) from 00:00 to 06:00. March to May revealed the most farm visitations by deer (37%). This study provided baseline information regarding cattle-deer interactions critical to transmission of bTB in this region and suggested that risk mitigation practices should be implemented to separate wildlife and domestic livestock when feasible.


Asunto(s)
Ciervos , Reservorios de Enfermedades/veterinaria , Granjas , Mycobacterium bovis , Tuberculosis Bovina/transmisión , Animales , Animales Salvajes , Bovinos , Brotes de Enfermedades/veterinaria , Ambiente , Femenino , Masculino , Minnesota/epidemiología , Estaciones del Año , Tuberculosis Bovina/epidemiología
3.
J Am Mosq Control Assoc ; 32(2): 83-90, 2016 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-27280346

RESUMEN

An adult mosquito survey was conducted at 12 sites using carbon dioxide traps in northern Minnesota throughout the summer of 2012. Specimens were counted, identified to species, sorted into pools, and tested for eastern equine encephalitis (EEEV) and West Nile virus (WNV). Our findings extend the known range of Culiseta melanura, Anopheles barberi, and An. quadrimaculatus and document the presence and abundance of 27 other mosquito taxa in the region. None of the pools tested positive for EEEV or WNV.


Asunto(s)
Culicidae/fisiología , Culicidae/virología , Virus de la Encefalitis Equina del Este/aislamiento & purificación , Insectos Vectores/fisiología , Insectos Vectores/virología , Virus del Nilo Occidental/aislamiento & purificación , Distribución Animal , Animales , Biodiversidad , Femenino , Minnesota , Densidad de Población , Estaciones del Año
4.
Vet Parasitol ; 202(3-4): 270-5, 2014 May 28.
Artículo en Inglés | MEDLINE | ID: mdl-24582734

RESUMEN

The prevalence of Toxoplasma gondii in white tailed deer (WTD) in the USA is high but little is known of the epidemiology of toxoplasmosis in this host. In the present study, we compared T. gondii seroprevalence from 749 WTD collected in 2012 and 2013 from a Metropolitan Park in Ohio and 487 WTD deer shot in Minnesota during 2008, 2009, and 2010. Serum samples were tested for antibodies to T. gondii by the modified agglutination test (cut-off titer, 25). Additionally myocardial samples from 123 seropositive WTD from Ohio were digested in pepsin and the digests were bioassayed for the isolation of T. gondii. Furthermore, to estimate transplacental rate of transmission, brains from 155 fetuses (included twins) from 148 deer from Minnesota were bioassayed in mice for the isolation of viable T. gondii. Seroprevalence of T. gondii varied with the year of collection, geography, and the age of deer. Of the Ohio deer sampled in 2012 and 2013 seroprevalences for the two years were similar (73.4% and 75.7%, respectively); remarkably 150 (66.1%) of 227 deer of <1 year of age were seropositive. Of the Minnesota deer, seroprevalence was lowest for the year 2008 (14.8%, 26/175) versus 2009 (27.7%, 59/213), and 2010 (25.2%, 25/99), thought to be related to environmental temperatures. Viable T. gondii was isolated in mice from the myocardium of four WTD from Ohio, and brain of one WTD fetus from Minnesota. Tachyzoites from infected mouse tissues were further propagated in cell culture. The DNA isolated from culture-derived tachyzoites of these five T. gondii isolates was characterized using 11 PCR-RFLP markers (SAG1, 5'- and 3'-SAG2, alt.SAG2, SAG3, BTUB, GRA6, c22-8, c29-2, L358, PK1 and Apico). Four genotypes were found, including ToxoDB genotype no. 1 (Type II), no. 2 (Type III), no. 3 (Type II variant) and no. 146. Results indicate fluctuating seroprevalence, probably related to weather and warrant further epidemiological studies.


Asunto(s)
ADN Protozoario/genética , Ciervos/parasitología , Toxoplasma/genética , Toxoplasmosis Animal/epidemiología , Animales , Anticuerpos Antiprotozoarios/sangre , Femenino , Genotipo , Masculino , Ratones , Minnesota/epidemiología , Ohio/epidemiología , Estudios Seroepidemiológicos , Toxoplasma/aislamiento & purificación , Toxoplasmosis Animal/transmisión
5.
Vet Parasitol ; 201(1-2): 150-3, 2014 Mar 17.
Artículo en Inglés | MEDLINE | ID: mdl-24522164

RESUMEN

Neospora caninum is a common cause of abortion in cattle worldwide. Canids, including the dog and the dingo (Canis familiaris), the coyote (Canis latrans), and the gray wolf (Canis lupus) are its definitive hosts that can excrete environmentally resistant oocysts in the environment, but also can act as intermediate hosts, harboring tissue stages of the parasite. In an attempt to isolate viable N. caninum from tissues of naturally infected wolves, brain and heart tissue from 109 wolves from Minnesota were bioassayed in mice. Viable N. caninum (NcWolfMn1, NcWolfMn2) was isolated from the brains of two wolves by bioassays in interferon gamma gene knockout mice. DNA obtained from culture-derived N. caninum tachyzoites of the two isolates were analyzed by N. caninum-specific Nc5 polymerase chain reaction and confirmed diagnosis. This is the first report of isolation of N. caninum from tissues of any wild canid host.


Asunto(s)
Animales Salvajes/parasitología , Coccidiosis/parasitología , Neospora/genética , Neospora/aislamiento & purificación , Lobos/parasitología , Animales , Encéfalo/parasitología , Corazón/parasitología , Masculino , Ratones , Minnesota , Datos de Secuencia Molecular
6.
Diabetes Obes Metab ; 15 Suppl 3: 39-50, 2013 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-24003920

RESUMEN

Proinflammatory processes have been investigated extensively in the development of type 2 diabetes, but our knowledge on anti-inflammatory proteins is rather limited. This article summarizes studies that investigated associations between circulating levels of anti-inflammatory cytokines and incident type 2 diabetes preferably in prospective epidemiological studies. Adiponectin is the only known anti-inflammatory protein whose circulating levels are decreased before type 2 diabetes. In contrast, concentrations of interleukin-1 receptor antagonist (IL-1RA), transforming growth factor-ß1 (TGF-ß1) and growth differentiation factor-15 (GDF-15) are increased and indicate the presence of a compensatory, but eventually futile, counter-regulation of proinflammatory stimuli. Importantly, a proof-of-principle study using recombinant IL-1RA to improve metabolic control in patients with type 2 diabetes demonstrated that a more pronounced upregulation of this protein than that found in the natural course of diabetes development may have clinical relevance. Other interesting candidates like omentin (which shows similar associations with metabolic parameters as adiponectin), interleukin-10 (IL-10) and secreted frizzled-related protein-5 (Sfrp5) are currently less well studied with sometimes conflicting results regarding their association with type 2 diabetes. Thus, further research is required to better understand the causal role of proinflammatory cytokines, hypoadiponectinaemia and the upregulation of anti-inflammatory proteins before the onset of type 2 diabetes.


Asunto(s)
Antiinflamatorios , Citocinas/fisiología , Diabetes Mellitus Tipo 2/etiología , Animales , Antiinflamatorios/metabolismo , Diabetes Mellitus Tipo 2/epidemiología , Diabetes Mellitus Tipo 2/metabolismo , Humanos , Incidencia , Factores de Riesgo
7.
Vet Parasitol ; 197(3-4): 685-90, 2013 Nov 08.
Artículo en Inglés | MEDLINE | ID: mdl-23786787

RESUMEN

Little is known of the genetic diversity of Toxoplasma gondii circulating in wildlife. In the present study feral gray wolves (Canis lupus) from Minnesota were examined for T. gondii infection. Antibodies to T. gondii were detected in 130 (52.4%) of 248 wolves tested by the modified agglutination test (cut-off titer of 25). Tissues (hearts, brains or both) of 109 wolves were bioassayed in mice for protozoal isolation. Viable T. gondii was isolated from 25 and the isolates were further propagated in cell culture. T. gondii DNA from these isolates was characterized using 10 PCR-RFLP markers (SAG1, SAG2, SAG3, BTUB, GRA6, c22-8, c29-2, L358, PK1 and Apico). Four genotypes were detected. Twenty-one isolates were Type 12 (ToxoDB PCR-RFLP genotype #5), 2 were Type II clonal (ToxoDB #1), 1 was Type II variant (ToxoDB #3), and 1 was a new genotype designated as ToxoDB genotype #219.


Asunto(s)
Genotipo , Polimorfismo de Longitud del Fragmento de Restricción , Toxoplasma/genética , Toxoplasmosis Animal/parasitología , Lobos , Animales , Bioensayo , Femenino , Interferón gamma/genética , Masculino , Ratones , Ratones Noqueados , Minnesota/epidemiología , Toxoplasmosis Animal/epidemiología
8.
Vet Parasitol ; 196(3-4): 519-22, 2013 Sep 23.
Artículo en Inglés | MEDLINE | ID: mdl-23566408

RESUMEN

Neosporosis is an important cause of bovine abortion worldwide. Many aspects of transmission of Neospora caninum in nature are unknown. The white-tailed deer (Odocoileus virginianus) is considered one of the most important wildlife reservoirs of N. caninum in the USA. During the hunting seasons of 2008, 2009, and 2010, brains of 155 white-tailed deer fetuses were bioassayed in mice for protozoal isolation. Viable N. caninum (NcWTDMn1, NcWTDMn2) was isolated from the brains of two fetuses by bioassays in mice, and subsequent propagation in cell culture. Dams of these two infected fetuses had antibodies to N. caninum by Neospora agglutination test at 1:100 serum dilution. DNA obtained from culture-derived N. caninum tachyzoites of the two isolates with Nc5 PCR confirmed diagnosis. Results prove congenital transmission of N. caninum in the white tailed deer for the first time.


Asunto(s)
Coccidiosis/veterinaria , Ciervos , Transmisión Vertical de Enfermedad Infecciosa/veterinaria , Neospora , Animales , Anticuerpos Antiprotozoarios , Bioensayo , Coccidiosis/parasitología , Femenino , Feto/parasitología , Inmunohistoquímica/veterinaria , Ratones , Embarazo , Complicaciones Parasitarias del Embarazo/parasitología , Complicaciones Parasitarias del Embarazo/veterinaria
9.
Geburtshilfe Frauenheilkd ; 72(1): 49-55, 2012 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-25253904

RESUMEN

Aim: "Late motherhood" is associated with greater perinatal risks but the term lacks precise definition. We present an approach to determine what "late motherhood" associated with "high risk" is, based on parity and preterm birth rate. Materials and Methods: Using data from the German Perinatal Survey of 1998-2000 we analysed preterm birth rates in women with zero, one, or two previous live births. We compared groups of "late" mothers (with high preterm birth rates) with "control" groups of younger women (with relatively low preterm birth rates). Data of 208 342 women were analysed. For women with zero (one; two) previous live births, the "control" group included women aged 22-26 (27-31; 29-33) years. Women in the "late motherhood" group were aged > 33 (> 35; > 38) years. Results: The "late motherhood" groups defined in this way were also at higher risk of adverse perinatal events other than preterm birth. For women with zero (one; two) previous live births, normal cephalic presentation occurred in 89 % (92.7 %; 93.3 %) in the "control" group, but only in 84.5 % (90 %; 90.4 %) in the "late motherhood" group. The mode of delivery was spontaneous or at most requiring manual help in 71.3 % (83.4 %; 85.8 %) in the "control" group, but only in 51.4 % (72.2 %; 76.4 %) in the "late motherhood" group. Five-minute APGAR scores were likewise worse for neonates of "late" mothers and the proportion with a birth weight ≤ 2499 g was greater. Conclusion: "Late motherhood" that is associated with greater perinatal risks can be defined based on parity and preterm birth rate.

10.
Eur J Vasc Endovasc Surg ; 41(5): 668-73, 2011 May.
Artículo en Inglés | MEDLINE | ID: mdl-21376643

RESUMEN

OBJECTIVE: To compare 1-year potencies' of heparin-bonded PTFE [(Hb-PTFE) (Propaten(®))] grafts with those of ordinary polytetraflouroethylene (PTFE) grafts in a blinded, randomised, clinically controlled, multi-centre study. MATERIALS AND METHODS: Eleven Scandinavian centres enrolled 569 patients with chronic functional or critical lower limb ischaemia who were scheduled to undergo femoro-femoral bypass or femoro-poplitaeal bypass. The patients were randomised 1:1 stratified by centre. Patency was assessed by duplex ultrasound scanning. A total of 546 patients (96%) completed the study with adequate follow-up. RESULTS: Perioperative bleeding was, on average, 370 ml with PTFE grafts and 399 ml with Heparin-bonded PTFE grafts (p = 0.32). Overall, primary patency after 1 year was 86.4% for Hb-PTFE grafts and 79.9% for PTFE grafts (OR = 0.627, 95% CI: 0.398; 0.989, p = 0.043). Secondary patency was 88% in Hb-PTFE grafts and 81% in PTFE grafts (OR = 0.569 (0.353; 0.917, p = 0.020)). Subgroup analyses revealed that significant reduction in risk (50%) was observed when Hb-PTFE was used for femoro-poplitaeal bypass (OR = 0.515 (0.281; 0.944, p = 0.030)), and a significant reduction in risk (50%) was observed with Hb-PTFE in cases with critical ischaemia (OR = 0.490 (0.249; 0.962, p = 0.036)). CONCLUSION: The Hb-PTFE graft significantly reduced the overall risk of primary graft failure by 37%. Risk reduction was 50% in femoro-poplitaeal bypass cases and in cases with critical ischaemia.


Asunto(s)
Stents Liberadores de Fármacos , Arteria Femoral/cirugía , Heparina/farmacología , Enfermedad Arterial Periférica/cirugía , Politetrafluoroetileno , Arteria Poplítea/cirugía , Grado de Desobstrucción Vascular/fisiología , Anciano , Anastomosis Quirúrgica/instrumentación , Anticoagulantes/farmacología , Prótesis Vascular , Femenino , Estudios de Seguimiento , Humanos , Masculino , Enfermedad Arterial Periférica/diagnóstico , Enfermedad Arterial Periférica/fisiopatología , Diseño de Prótesis , Estudios Retrospectivos , Países Escandinavos y Nórdicos , Resultado del Tratamiento , Ultrasonografía Doppler Dúplex
11.
Z Geburtshilfe Neonatol ; 214(4): 161-6, 2010 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-20806151

RESUMEN

AIM: A description of preterm birth rates - specified according to maternal age - after the exclusion of anamnestic risk factors. MATERIAL AND METHODS: Data for this study were taken from the German Perinatal Survey of 1998-2000. We analysed data from 492,576 singleton pregnancies and determined preterm birth rates according to maternal age after a stepwise exclusion of anamnestic risk factors. RESULTS: There was a U-shaped dependence of preterm birth rates on maternal age. The lowest preterm birth rate (without excluding women with anamnestic risk factors) was 5.6% at a maternal age of 29 years. The prevalence of some anamnestic risk factors for preterm birth, such as previous stillbirths, spontaneous and induced abortions, and ectopic pregnancies, increased with maternal age. Excluding women with anamnestic risk factors lowered the preterm birth rates substantially. The lowest preterm birth rates were found in women with one previous live birth, without any anamnestic risk factors, and with a body mass index (BMI) of 25.00-29.99. With these restrictions, we found preterm birth rates of under 2% for women aged 24-31 years. CONCLUSIONS: The magnitude and age-dependence of the preterm birth rate can to some extent be explained with the age-dependent prevalence of anamnestic risk factors for preterm birth. Excluding women with anamnestic risk factors from our study population lowered the preterm birth rates substantially.


Asunto(s)
Encuestas Epidemiológicas , Atención Perinatal/estadística & datos numéricos , Nacimiento Prematuro/epidemiología , Adolescente , Adulto , Distribución por Edad , Femenino , Alemania/epidemiología , Humanos , Masculino , Edad Materna , Persona de Mediana Edad , Embarazo , Factores de Riesgo , Adulto Joven
12.
Br J Anaesth ; 104(4): 401-6, 2010 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-20207747

RESUMEN

In experimental trials, ketamine has been shown to reduce hyperalgesia, prevent opioid tolerance, and lower morphine consumption. Clinical trials have found contradictory results. We performed a review of randomized, double-blinded clinical trials of ketamine added to opioid in i.v. patient-controlled analgesia (PCA) for postoperative pain in order to clarify this controversy. Our primary aim was to compare the effectiveness and safety of postoperative administered ketamine in addition to opioid for i.v. PCA compared with i.v. PCA with opioid alone. Studies were identified from the Cochrane Library 2003, MEDLINE (1966-2009), and EMBASE (1980-2009) and by hand-searching reference lists from review articles and trials. Eleven studies were identified with a total of 887 patients. Quality and validity assessment was performed on all trials included using the Oxford Quality Scale with an average quality score of 4.5. Pain was assessed using visual analogue scales or verbal rating scales. Six studies showed significant improved postoperative analgesia with the addition of ketamine to opioids. Five studies showed no significant clinical improvement. For thoracic surgery, the addition of ketamine to opioid for i.v. PCA was superior to i.v. PCA opioid alone. The combination allows a significant reduction in pain score, cumulative morphine consumption, and postoperative desaturation. The benefit of adding ketamine to morphine in i.v. PCA for orthopaedic or abdominal surgery remains unclear. Owing to huge heterogeneity of studies and small sample sizes, larger double-blinded randomized studies showing greater degree of homogeneity are required to confirm these findings.


Asunto(s)
Analgesia Controlada por el Paciente/métodos , Analgésicos/administración & dosificación , Ketamina/administración & dosificación , Morfina/administración & dosificación , Dolor Postoperatorio/prevención & control , Enfermedad Aguda , Método Doble Ciego , Combinación de Medicamentos , Humanos , Infusiones Intravenosas , Dimensión del Dolor/métodos , Ensayos Clínicos Controlados Aleatorios como Asunto
13.
Vet Parasitol ; 161(3-4): 330-4, 2009 May 12.
Artículo en Inglés | MEDLINE | ID: mdl-19285809

RESUMEN

The white-tailed deer (Odocoileus virginianus) is considered one of the most important wildlife reservoirs of Neospora caninum and Toxoplasma gondii in the US. Sera from white-tailed deer from Minnesota and Iowa were tested for antibodies to N. caninum by four serologic tests including the indirect fluorescent antibody (IFA) test (cut-off 1:25), Neospora caninum agglutination test (cut-off 1:25), an enzyme-linked immunoabsorbent assay, and Western blot (WB). Sera were also tested for antibodies to T. gondii using the modified agglutination test (cut-off 1:25). Of 62 adult deer from Minnesota antibodies to T. gondii were found in 20 (32.2%), N. caninum in 44 (71%), with dual infections in 18 deer. Of 170 (73 fawns, 9 yearlings, 88 adults) deer from Iowa, T. gondii antibodies were present in 91 (53.5%) with 37.0, 55.6 and 67.0% seropositivity in fawns, yearlings, and adults, respectively. Antibodies to N. caninum were found in 150 of 170 (88.2%) by any of the 3 tests (99 by Western blots, 135 by ELISA, 106 by IFA, and 118 by NAT). Dual infections with T. gondii and N. caninum were detected in 47 deer. Very high (84.9%) seropositivity of N. caninum in fawns suggests high rate of congenital transmission of the parasite. Seropositivity in each test at different titers is discussed.


Asunto(s)
Coccidiosis/veterinaria , Ciervos , Neospora/inmunología , Toxoplasma/inmunología , Toxoplasmosis Animal/inmunología , Animales , Coccidiosis/epidemiología , Coccidiosis/inmunología , Coccidiosis/parasitología , Femenino , Iowa/epidemiología , Minnesota/epidemiología , Estudios Seroepidemiológicos , Pruebas Serológicas/veterinaria , Toxoplasmosis Animal/epidemiología
14.
Ann Vasc Surg ; 23(4): 469-77, 2009.
Artículo en Inglés | MEDLINE | ID: mdl-19136232

RESUMEN

We evaluated early mortality (<30 days) rates, cost analyses, and preoperative variables that may be predictive of 30-day mortality in elderly patients compared to younger patients after emergency open repair of ruptured abdominal aortic aneurysm (RAAA). The survey is a retrospective analysis based on prospectively registered data. The protocol was an "all-comers" policy. Seventy-two patients, who were operated on for RAAA in our department from January 1, 2005, to December 30, 2005, are included in this study. The follow-up time of survivors was 1 year. We defined 75-year-old patients as elderly because of the increased incidence of surgical risk factors and hospital mortality in this subset of patients (cut-off age). Demographic, clinical, and operative factors were analyzed together with 30-day mortality. Univariate analysis was performed with the chi-squared test. Multivariate analyses were also performed with the variables that were found to be significant in the univariate analysis. Health economy and cost analysis for the two groups were estimated. Out of 72 open repairs of RAAA, 44 patients (61%) were under 75 years of age and 28 (39%) were 75 years or older. The average age of the patients was 71 years (confidence interval [CI] 69.2-73.7, range 53-87). Twenty-five patients (35%, CI 27.6-51.2) died within 30 days in the postoperative period. The 30-day mortality for the 28 elderly patients who underwent open operative repair was 16 (57%, CI 48%-72%) compared to 9 (20%, CI 12%-33%) of 44 younger patients (p < 0.001). An age of 75 years or older and a serum creatinine >or=0.150 mmol/L in elderly patients with RAAA (p < 0.01) were identified to be significant risk factors for operative mortality. We did not encounter significant differences in the distribution of other risk factors in the group of elderly patients compared to the younger group. Between the survivors of the two groups, there were no significant differences in the total length of stay (LOS) and the LOS in the intensive care unit. Advanced age (>or=75) and the combination of this advanced age and serum creatinine of >or=0.150 mmol/L were the only significant (p < 0.05) preoperative risk factors in our single-center study. However, we believe that treatment for RAAA can be justified in elderly patients. In our experience, surgical open repair has been life-saving in 33% of patients aged 75 years and older, at a relatively low price for each life, estimated at euro 40,409.


Asunto(s)
Aneurisma de la Aorta Abdominal/cirugía , Rotura de la Aorta/cirugía , Servicios de Salud para Ancianos , Evaluación de Procesos y Resultados en Atención de Salud , Procedimientos Quirúrgicos Vasculares/mortalidad , Distribución por Edad , Factores de Edad , Anciano , Anciano de 80 o más Años , Aneurisma de la Aorta Abdominal/economía , Aneurisma de la Aorta Abdominal/mortalidad , Rotura de la Aorta/economía , Rotura de la Aorta/mortalidad , Biomarcadores/sangre , Análisis Costo-Beneficio , Creatinina/sangre , Dinamarca/epidemiología , Femenino , Encuestas de Atención de la Salud , Servicios de Salud para Ancianos/economía , Mortalidad Hospitalaria , Humanos , Tiempo de Internación , Modelos Logísticos , Masculino , Persona de Mediana Edad , Oportunidad Relativa , Evaluación de Procesos y Resultados en Atención de Salud/economía , Selección de Paciente , Sistema de Registros , Estudios Retrospectivos , Medición de Riesgo , Factores de Riesgo , Análisis de Supervivencia , Factores de Tiempo , Resultado del Tratamiento , Procedimientos Quirúrgicos Vasculares/efectos adversos , Procedimientos Quirúrgicos Vasculares/economía
15.
Int J Parasitol ; 38(8-9): 1057-63, 2008 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-18187136

RESUMEN

Clinical toxoplasmosis is most severe in congenitally-infected hosts. In humans, transmission of Toxoplasma gondii from the mother to the foetus is considered to be most efficient during the last trimester of pregnancy but clinical congenital toxoplasmosis is more severe if transmission occurs during the first trimester. However, there are no data on the rate of congenital transmission of T. gondii with respect to gestational age in any host during natural infection. In the present study, attempts were made to isolate T. gondii by bioassay in mice inoculated with tissues from foetuses of 88 naturally-exposed white-tailed deer from Iowa and Minnesota. Viable T. gondii was isolated from foetuses of six of 61 deer in early pregnancy (45-85 days of gestation) from Iowa and foetuses of nine of 27 deer from Minnesota in mid-gestation (130-150 days) of a gestational period of 7 months. The 15 T. gondii isolates obtained from foetal deer were PCR-restriction fragment length polymorphism genotyped using polymorphisms at 10 nuclear markers including SAG1, SAG2, SAG3, BTUB, GRA6, c22-8, c29-2, L358, PK1 and an apicoplast marker, Apico. Five genotypes were revealed, including the clonal Type II and III lineages, and three non-clonal genotypes. DNA sequencing analysis of representative isolates at loci SAG2, c22-8, L358 and PK1 revealed that the three non-clonal genotypes are closely related to the clonal Type I, II and III lineages. It is very likely that these non-clonal genotypes were derived from genetic crosses among the three clonal Type I, II and III lineages. The most common genotype was Type II, commonly found in humans in North America and Europe, suggesting the possible link of transmission from game animals to humans.


Asunto(s)
Ciervos/parasitología , Feto/parasitología , Transmisión Vertical de Enfermedad Infecciosa/veterinaria , Toxoplasma/genética , Toxoplasmosis Animal/genética , Toxoplasmosis Animal/transmisión , Toxoplasmosis Congénita/genética , Animales , Anticuerpos Antiprotozoarios/aislamiento & purificación , Femenino , Genotipo , Edad Gestacional , Humanos , Productos de la Carne/parasitología , Ratones , Polimorfismo de Longitud del Fragmento de Restricción , Embarazo , Toxoplasma/inmunología , Toxoplasma/aislamiento & purificación , Toxoplasmosis Animal/embriología , Toxoplasmosis Congénita/embriología , Toxoplasmosis Congénita/parasitología
16.
Br J Anaesth ; 93(3): 333-8, 2004 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-15247116

RESUMEN

BACKGROUND: Episodic hypoxaemia, cardiac arrhythmias, and myocardial ischaemia may be related after major abdominal surgery. METHODS: We studied 52 patients on the second and third nights after major abdominal operations, using continuous pulse oximetry and Holter ECG. We recorded the amount of time spent with oxygen saturation values less than 90, 85, and 80% during the night, and noted episodes of hypoxaemia, tachycardia, bradycardia, and ST-segment changes. RESULTS: In 87 study nights there were 2403 (individual range 1-229) episodes of hypoxaemia, 3509 (individual range 1-234) episodes of tachycardia, and 265 (individual range 1-73) episodes of ST segment deviation. Of the 52 patients, 50 had episodes of hypoxaemia and tachycardia, and 19 patients had one or more episodes of ST segment deviation. For 38% of the episodes of ST deviation, there was an episode of hypoxaemia at the same time and in 16% there was an episode of tachycardia. ST deviation was only noted in 4% of the episodes of hypoxaemia and in 1% of the episodes of tachycardia. CONCLUSION: Episodes of hypoxaemia and tachycardia frequently occur together after surgery but are rarely associated with ST deviation. Hypoxaemia or tachycardia is often present at the same time as ST deviation occurs.


Asunto(s)
Abdomen/cirugía , Hipoxia/complicaciones , Isquemia Miocárdica/complicaciones , Complicaciones Posoperatorias , Adulto , Anciano , Anciano de 80 o más Años , Ritmo Circadiano , Electrocardiografía Ambulatoria/métodos , Femenino , Humanos , Hipoxia/sangre , Masculino , Persona de Mediana Edad , Isquemia Miocárdica/sangre , Oximetría/métodos , Oxígeno/sangre , Presión Parcial , Complicaciones Posoperatorias/sangre , Estadísticas no Paramétricas , Taquicardia/sangre , Taquicardia/complicaciones
17.
J Clin Oncol ; 22(12): 2273-83, 2004 Jun 15.
Artículo en Inglés | MEDLINE | ID: mdl-15111618

RESUMEN

PURPOSE: Investigation of high-dose chemotherapy (HD-CT) followed by autologous hematopoietic stem-cell support compared with standard-dose chemotherapy (SD-CT) as adjuvant treatment in patients with primary breast cancer and 10 or more positive axillary lymph nodes. PATIENTS AND METHODS: Between November 1993 and September 2000, 307 patients were randomized to receive (following four cycles of epirubicin 90 mg/m(2) and cyclophosphamide 600 mg/m(2), intravenously every 21 days) either HD-CT of cyclophosphamide 1500 mg/m(2), thiotepa 150 mg/m(2), and mitoxantrone 10 mg/m(2), intravenously for 4 consecutive days followed by stem-cell support; or SD-CT in three cycles of cyclophosphamide 500 mg/m(2), methotrexate 40 mg/m(2), and fluorouracil 600 mg/m(2) intravenously on days 1 and 8, every 28 days. The primary end point was event-free survival. RESULTS: After a median follow-up of 3.8 years, 144 events with respect to event-free survival have been observed (HD-CT: 63 events; SD-CT: 81 events). The first event of failure (HD-CT v SD-CT) was an isolated locoregional recurrence (nine v 11), a distant failure (52 v 68), and death without recurrence (two v two). The estimated relative risk of HD-CT versus SD-CT was 0.75 (95% CI, 0.54 to 1.06; P =.095). Overall survival showed no difference (HD-CT: 40 deaths; SD-CT: 49 deaths). CONCLUSION: There was a trend in favor of HD-CT with respect to event-free survival, but without statistical significance. Further follow-up and a meta-analysis of all randomized studies will reveal the effect of HD-CT as compared with SD-CT as adjuvant treatment in high-risk primary breast cancer.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Neoplasias de la Mama/terapia , Quimioterapia Adyuvante , Trasplante de Células Madre Hematopoyéticas , Adulto , Quimioterapia Adyuvante/efectos adversos , Terapia Combinada , Supervivencia sin Enfermedad , Femenino , Humanos , Metástasis Linfática , Persona de Mediana Edad , Pronóstico , Análisis de Supervivencia , Trasplante Autólogo
18.
Diabetes Care ; 24(2): 228-33, 2001 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-11213870

RESUMEN

OBJECTIVE: Consumption of soy protein has recently been shown to improve the blood lipid levels in nondiabetic subjects. The purpose of this study was to evaluate if a dietary supplement of soy protein, isoflavones, and cotyledon fiber (Abalon) affects cardiovascular risk markers, blood glucose, and insulin levels in type 2 diabetic subjects. RESEARCH DESIGN AND METHODS: Twenty type 2 diabetic subjects participated in a crossover trial. They were randomized to double-blind supplementation for 6 weeks with Abalon (soy protein [50 g/day] with high levels of isoflavones [minimum 165 mg/day] and cotyledon fiber [20 g/day]) or placebo (casein [50 g/day] and cellulose [20 g/day]), separated by a 3-week wash-out period. RESULTS: The results are expressed as means +/- SD. The percentage mean treatment difference between Abalon and placebo demonstrated significantly lower mean values after Abalon for LDL cholesterol (10 +/- 15%, P < 0.05), LDL/UHDL ratio (12 +/- 18%, P < 0.05), apolipoprotein (apo) B100 (30 +/- 38%, P < 0.01), triglycerides (22 +/- 10%, P < 0.05), and homocysteine (14 +/- 21%, P < 0.01), whereas the total cholesterol value tended to be less significant but still lower (8 +/- 15%, P < 0.08). No change occurred in HDL cholesterol, apo B100/apo A1 ratio, plasminogen activator inhibitor 1, factor VIIc, von Willebrand factor, fibrinogen, lipoprotein(a), glucose, HbA1c, or 24-h blood pressure. CONCLUSIONS: These results indicate beneficial effects of dietary supplementation with Abalon on cardiovascular risk markers in type 2 diabetic subjects. This improvement is seen even in individuals with near-normal lipid values.


Asunto(s)
Enfermedades Cardiovasculares/sangre , Diabetes Mellitus Tipo 2/dietoterapia , Proteínas en la Dieta/administración & dosificación , Lípidos/sangre , Proteínas de Soja , Anciano , Apolipoproteína B-100 , Apolipoproteínas B/sangre , Glucemia/análisis , HDL-Colesterol/sangre , LDL-Colesterol/sangre , Estudios Cruzados , Diabetes Mellitus Tipo 2/sangre , Suplementos Dietéticos , Método Doble Ciego , Ayuno , Femenino , Homocisteína/sangre , Humanos , Insulina/sangre , Masculino , Persona de Mediana Edad , Placebos , Factores de Riesgo , Triglicéridos/sangre
20.
Eur J Surg ; 165(6): 522-7, 1999 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-10433133

RESUMEN

OBJECTIVE: To find out whether the biological marker, carbohydrate deficient transferrin (CDT), was helpful in the detection of alcoholic patients in a surgical unit. DESIGN: Prospective open study. SETTING: Teaching hospital, Denmark. SUBJECTS: 286 men and 248 women admitted to the department of surgical gastroenterology between March and July 1996. MAIN OUTCOME MEASURES: Specific interview about drinking and correlation with CDT concentration. RESULTS: 31 men (13%) and 10 women (3%) were alcoholic and at special risk of operation. The correlation between intake and CDT:transferrin ratio was 0.63 for men and 0.53 for women. The correlation between consumption and CDT was better, being 0.77 and 0.58, respectively. Younger women had the lowest correlation (0.33). Sensitivity of CDT for men and women was 100% and 80%, respectively; the specificity was 97% and 96%; the positive predictive value 82% and 44%; and the negative predictive value 97% and 99%. CONCLUSION: CDT is a valid marker of harmful alcohol intake among surgical patients, except among younger women.


Asunto(s)
Alcoholismo/diagnóstico , Procedimientos Quirúrgicos Operativos , Transferrina/análogos & derivados , Alcoholismo/sangre , Alcoholismo/epidemiología , Biomarcadores/sangre , Procedimientos Quirúrgicos del Sistema Digestivo , Femenino , Humanos , Masculino , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Estudios Prospectivos , Medición de Riesgo , Sensibilidad y Especificidad , Procedimientos Quirúrgicos Operativos/efectos adversos , Transferrina/análisis
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