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1.
Vet Surg ; 49(4): 648-658, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-32133662

RESUMO

OBJECTIVE: To report the performance of thoroughbred racehorses after surgical repair of a medial condylar fracture of the third metacarpal/metatarsal bone. STUDY DESIGN: Retrospective cohort study. SAMPLE POPULATION: Forty-three horses surgically treated for medial condylar fractures, 30 with previous racing experience, 13 without previous racing experience (nonexperienced). METHODS: Medical records (2009-2017) were reviewed for signalment, radiographic fracture characteristics, repair technique, and postoperative morbidity and mortality. Each experienced horse was matched with two horses randomly selected from its most recent race to serve as healthy controls. Racing performance parameters (race rating, competitive level, speed rating, performance index) and career racing statistics were compared with multiple regression models between injured experienced horses and controls. The career racing statistics for nonexperienced horses were evaluated. Reasons for nonreturn to racing were obtained. RESULTS: The median duration of follow-up was 6 years (minimum 2, maximum 10). Twenty-one of 43 (49%) horses raced again as well as 18 of 30 (60%) experienced horses and three of 13 (23%) nonexperienced horses. Experienced horses were five times more likely than nonexperienced horses to return to racing (95% confidence interval = 0.07-0.58, P = .003). Higher preoperative racing performance parameters were associated with return to racing. Racing performance parameters were lower after the date of fracture in injured horses compared with controls. CONCLUSION: Experienced horses were more likely to return to racing after medial condylar fracture repair, although their performance was generally lower than that of comparably uninjured horses. CLINICAL SIGNIFICANCE: Owners should be aware that horses with medial condylar fractures likely will race at a lower level than their uninjured peers.


Assuntos
Fraturas Ósseas/veterinária , Cavalos/fisiologia , Ossos Metacarpais/cirurgia , Ossos do Metatarso/cirurgia , Esforço Físico , Animais , Estudos de Coortes , Feminino , Fraturas Ósseas/cirurgia , Cavalos/cirurgia , Masculino , Ossos Metacarpais/lesões , Ossos do Metatarso/lesões , Estudos Retrospectivos , Esportes
3.
J Antimicrob Chemother ; 73(7): 1880-1887, 2018 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-29659858

RESUMO

Objectives: To report the linezolid activity, resistance mechanisms and epidemiological typing of selected isolates observed during the 2016 Zyvox® Annual Appraisal of Potency and Spectrum (ZAAPS) programme. Methods: A total of 8325 organisms were consecutively collected from 76 centres in 42 countries (excluding the USA). Broth microdilution susceptibility testing was performed and isolates displaying linezolid MICs of ≥4 mg/L were molecularly characterized. Results: Linezolid inhibited 99.8% of all Gram-positive pathogens at the respective susceptible breakpoints and showed a modal MIC of 1 mg/L, except for CoNS, for which the modal MIC result was 0.5 mg/L. Among isolates displaying linezolid MICs of ≥4 mg/L, one Staphylococcus aureus (linezolid MIC of 4 mg/L) harboured cfr and belonged to ST72, while four CoNS (MICs of 16-32 mg/L; ST2) showed drug target alterations. Two Enterococcus faecium (ST117) from a single site in Rome were linezolid non-susceptible (MICs of 8 mg/L) and had G2576T mutations. Eight linezolid-non-susceptible Enterococcus faecalis (MICs of 4 mg/L; 4 sites in 4 countries; ST256, ST480, ST766 and ST775) carried optrA and isolates carrying optrA from the same medical centre were genetically related. One Streptococcus gallolyticus (MIC of 4 mg/L) and one Streptococcus mitis (MIC of 16 mg/L) carried optrA and G2576T mutations, respectively. Conclusions: These results document the continued long-term in vitro potency of linezolid. Alterations in the 23S rRNA and/or L3/L4 proteins remain the main oxazolidinone resistance mechanisms in E. faecium and CoNS, whereas optrA emerged as the sole mechanism in E. faecalis. Surveillance and infection control will be important strategies to detect optrA and prevent it from disseminating.


Assuntos
Antibacterianos/farmacologia , Farmacorresistência Bacteriana Múltipla , Bactérias Gram-Positivas/efeitos dos fármacos , Infecções por Bactérias Gram-Positivas/microbiologia , Linezolida/farmacologia , Enterococcus faecium/efeitos dos fármacos , Enterococcus faecium/genética , Saúde Global , Bactérias Gram-Positivas/genética , Hospitalização , Humanos , Internacionalidade , Testes de Sensibilidade Microbiana , Mutação/efeitos dos fármacos , RNA Ribossômico 23S/genética , Staphylococcus aureus/efeitos dos fármacos , Staphylococcus aureus/genética
4.
Artigo em Inglês | MEDLINE | ID: mdl-28483950

RESUMO

This report describes linezolid susceptibility testing results for 6,741 Gram-positive pathogens from 60 U.S. sites collected during 2015 for the LEADER Program. In addition, the report summarizes linezolid in vitro activity, resistance mechanisms, and molecular typing obtained for 2011 to 2015. During 2015, linezolid showed potent activity in testing against Staphylococcus aureus, inhibiting >99.9% of 3,031 isolates at ≤2 µg/ml. Similarly, linezolid showed coverage against 99.2% of coagulase-negative staphylococci, 99.7% of enterococci, and 100.0% of Streptococcus pneumoniae, virdans group, and beta-hemolytic streptococcus isolates tested. The overall linezolid resistance rate remained a modest <1% from 2011 to 2015. Staphylococci, especially Staphylococcus epidermidis, showed a range of linezolid resistance mechanisms. Increased annual trends for the presence of cfr among Staphylococcus aureus isolates were not observed, but 64.3% (9/14) of the isolates with decreased susceptibility (MIC, ≥4 µg/ml) to linezolid carried this transferrable gene (2011 to 2015). The cfr gene was detected in 21.9% (7/32) of linezolid-resistant staphylococci other than S. aureus from 2011 to 2015. The optrA gene was noted in half (2/4) of the population of linezolid-nonsusceptible Enterococcus faecalis isolates from 2011 to 2015, while linezolid-nonsusceptible Enterococcus faecium isolates showed alterations predominantly (16/16) in the 23S rRNA gene (G2576T). This report confirms a long record of linezolid activity against Gram-positive isolates in the United States since regulatory approval in 2000 and reports the oxazolidinones evolving resistance mechanisms.


Assuntos
Cocos Gram-Positivos/efeitos dos fármacos , Linezolida/farmacologia , Antibacterianos/farmacologia , Farmacorresistência Bacteriana/genética , Enterococcus faecalis/efeitos dos fármacos , Testes de Sensibilidade Microbiana , Staphylococcus/efeitos dos fármacos , Streptococcus/efeitos dos fármacos , Estados Unidos
5.
J Antimicrob Chemother ; 72(11): 3093-3099, 2017 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-28961701

RESUMO

OBJECTIVES: To report the linezolid in vitro activity obtained during the 2015 ZAAPS Program. METHODS: In total, 7587 organisms causing documented infections were consecutively collected in 65 centres in 32 ex-USA countries. Broth microdilution susceptibility testing was performed. Isolates displaying linezolid MIC results of ≥ 4 mg/L were molecularly characterized. RESULTS: Linezolid inhibited >99.9% of Staphylococcus aureus at ≤ 2 mg/L, with MIC50 results of 1 mg/L, regardless of methicillin resistance. A similar linezolid MIC50 result (0.5 mg/L) was observed for CoNS, with the vast majority of isolates (99.7%) also inhibited at ≤ 2 mg/L. Three CoNS (linezolid MIC, 16-64 mg/L) from Italy were found to contain alterations in the 23S rRNA and/or L3/L4 ribosomal proteins. One isolate also harboured cfr. Linezolid exhibited consistent modal MIC and MIC50 results (1 mg/L) for enterococci regardless of species or vancomycin resistance. One Enterococcus faecalis (linezolid MIC, 8 mg/L) from Galway, Ireland, carried optrA. One Enterococcus faecium (linezolid MIC, 16 mg/L) from Italy contained a G2576T mutation in the 23S rRNA. All Streptococcus pneumoniae, viridans group streptococci and ß-haemolytic streptococci were inhibited by linezolid at ≤ 2, ≤ 2 and ≤ 1 mg/L, respectively, with equivalent MIC90 results (1 mg/L for all groups). CONCLUSIONS: These results document the continued long-term and stable in vitro potency of linezolid and a limited number of isolates with decreased susceptibility to linezolid (MIC, ≥4 mg/L). The latter isolates showed primarily mutations in the 23S rRNA gene and/or L3/L4 proteins, with plasmid-mediated resistance (cfr and optrA) also present, albeit at a low prevalence.


Assuntos
Antibacterianos/farmacologia , Monitoramento Epidemiológico , Bactérias Gram-Positivas/efeitos dos fármacos , Bactérias Gram-Positivas/isolamento & purificação , Linezolida/farmacologia , Ásia/epidemiologia , Canadá/epidemiologia , Farmacorresistência Bacteriana/genética , Enterococcus faecalis/efeitos dos fármacos , Enterococcus faecalis/genética , Enterococcus faecalis/isolamento & purificação , Europa (Continente)/epidemiologia , Bactérias Gram-Positivas/genética , Infecções por Bactérias Gram-Positivas/tratamento farmacológico , Infecções por Bactérias Gram-Positivas/epidemiologia , Hospitais , Humanos , Internacionalidade , Colaboração Intersetorial , Testes de Sensibilidade Microbiana , Plasmídeos , RNA Ribossômico 23S/genética , América do Sul/epidemiologia , Staphylococcus aureus/efeitos dos fármacos , Staphylococcus aureus/genética , Staphylococcus aureus/isolamento & purificação , Streptococcus pneumoniae/efeitos dos fármacos , Streptococcus pneumoniae/genética , Streptococcus pneumoniae/isolamento & purificação
6.
Mycoses ; 60(10): 663-667, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-28597967

RESUMO

Concerns with echinocandin use for infections caused by Candida parapsilosis complex species have driven the need for data to support echinocandin clinical efficacy in such patients. Data from six prospective studies were pooled to assess efficacy and safety of anidulafungin in patients with candidaemia caused by C. parapsilosis. Patient-level data were pooled from patients with microbiologically confirmed candidaemia due to C. parapsilosis treated with anidulafungin. Patients received a 200 mg intravenous (IV) loading dose of anidulafungin (day 1) and 100 mg daily thereafter. IV treatment could be switched to oral azole therapy after ≥5 or ≥10 days. Primary endpoint was global response at end of IV therapy (EOIVT). Seventy patients had candidaemia caused by C. parapsilosis. Global response was 77.1% (95% CI: 67.3, 87.0) at EOIVT and 70.0% (95% CI: 59.3, 80.7) at end of treatment. Three of 55 isolates (with MICs available) were resistant to anidulafungin (MIC ≥8 mg/L). All-cause mortality was 5.7% (n=4/70) by day 14 and 14.3% (n=10/70) by day 28. IV anidulafungin was effective for the treatment of C. parapsilosis candidaemia in this population, consistent with efficacy previously demonstrated for other Candida species. (ClinicalTrials.gov identifiers: NCT00496197, NCT00548262, NCT00537329, NCT00689338, NCT00806351, NCT00805740).


Assuntos
Antifúngicos/uso terapêutico , Candida parapsilosis/efeitos dos fármacos , Candidemia/tratamento farmacológico , Equinocandinas/uso terapêutico , Administração Intravenosa , Adulto , Anidulafungina , Antifúngicos/administração & dosagem , Antifúngicos/efeitos adversos , Azóis/farmacologia , Azóis/uso terapêutico , Candidemia/microbiologia , Candidíase Invasiva/tratamento farmacológico , Ensaios Clínicos como Assunto , Equinocandinas/administração & dosagem , Equinocandinas/efeitos adversos , Feminino , Fluconazol/farmacologia , Fluconazol/uso terapêutico , Humanos , Masculino , Testes de Sensibilidade Microbiana , Pessoa de Meia-Idade , Estudos Prospectivos , Resultado do Tratamento
7.
Antimicrob Agents Chemother ; 60(4): 2273-80, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26833165

RESUMO

Thelinezolidexperience andaccuratedetermination ofresistance (LEADER) surveillance program has monitored linezolid activity, spectrum, and resistance since 2004. In 2014, a total of 6,865 Gram-positive pathogens from 60 medical centers from 36 states were submitted. The organism groups evaluated wereStaphylococcus aureus(3,106), coagulase-negative staphylococci (CoNS; 797), enterococci (855),Streptococcus pneumoniae(874), viridans group streptococci (359), and beta-hemolytic streptococci (874). Susceptibility testing was performed by reference broth microdilution at the monitoring laboratory. Linezolid-resistant isolates were confirmed by repeat testing. PCR and sequencing were performed to detect mutations in 23S rRNA, L3, L4, and L22 proteins and acquired genes (cfrandoptrA). The MIC50/90forStaphylococcus aureuswas 1/1 µg/ml, with 47.2% of isolates being methicillin-resistantStaphylococcus aureus Linezolid was active against allStreptococcus pneumoniaestrains and beta-hemolytic streptococci with a MIC50/90of 1/1 µg/ml and against viridans group streptococci with a MIC50/90of 0.5/1 µg/ml. Among the linezolid-nonsusceptible MRSA strains, one strain harboredcfronly (MIC, 4 µg/ml), one harbored G2576T (MIC, 8 µg/ml), and one containedcfrand G2576T with L3 changes (MIC, ≥8 µg/ml). Among CoNS, 0.75% (six isolates) of all strains demonstrated linezolid MIC results of ≥4 µg/ml. Five of these were identified asStaphylococcus epidermidis, four of which containedcfrin addition to the presence of mutations in the ribosomal proteins L3 and L4, alone or in combination with 23S rRNA (G2576T) mutations. Six enterococci (0.7%) were linezolid nonsusceptible (≥4 µg/ml; five with G2576T mutations, including one with an additionalcfrgene, and one strain withoptrAonly). Linezolid demonstrated excellent activity and a sustained susceptibility rate of 99.78% overall.


Assuntos
Antibacterianos/uso terapêutico , Proteínas de Bactérias/genética , Enterococcus/efeitos dos fármacos , Linezolida/uso terapêutico , Vigilância em Saúde Pública , Staphylococcus aureus/efeitos dos fármacos , Streptococcus pneumoniae/efeitos dos fármacos , Proteínas de Bactérias/metabolismo , Farmacorresistência Bacteriana/genética , Enterococcus/genética , Enterococcus/crescimento & desenvolvimento , Enterococcus/metabolismo , Expressão Gênica , Humanos , Testes de Sensibilidade Microbiana , Mutação , RNA Ribossômico 23S/genética , RNA Ribossômico 23S/metabolismo , Proteínas Ribossômicas/genética , Proteínas Ribossômicas/metabolismo , Infecções Estafilocócicas/tratamento farmacológico , Infecções Estafilocócicas/epidemiologia , Infecções Estafilocócicas/microbiologia , Staphylococcus aureus/genética , Staphylococcus aureus/crescimento & desenvolvimento , Staphylococcus aureus/metabolismo , Infecções Estreptocócicas/tratamento farmacológico , Infecções Estreptocócicas/epidemiologia , Infecções Estreptocócicas/microbiologia , Streptococcus pneumoniae/genética , Streptococcus pneumoniae/crescimento & desenvolvimento , Streptococcus pneumoniae/metabolismo , Estados Unidos/epidemiologia
8.
J Antimicrob Chemother ; 71(7): 1860-5, 2016 07.
Artigo em Inglês | MEDLINE | ID: mdl-27013481

RESUMO

OBJECTIVES: The objective of this study was to report the linezolid in vitro activity observed during the Zyvox(®) Annual Appraisal of Potency and Spectrum (ZAAPS) programme for 2014. METHODS: In total, 7541 organisms causing documented infections were consecutively collected in 66 centres in 33 countries, excluding the USA. Susceptibility testing was performed by broth microdilution. Isolates displaying linezolid MIC results of ≥4 mg/L were molecularly characterized. RESULTS: Linezolid inhibited all Staphylococcus aureus at ≤2 mg/L, with MIC50 results of 1 mg/L, regardless of methicillin resistance. A similar linezolid MIC50 result (i.e. 0.5 mg/L) was observed against CoNS, with the vast majority of isolates (99.4%) also inhibited at ≤2 mg/L. Six CoNS that exhibited elevated linezolid MIC values were found to contain alterations in the 23S rRNA and/or L3 ribosomal protein. Linezolid exhibited consistent modal MIC and MIC50 results (1 mg/L) against enterococci, regardless of species or vancomycin resistance. Three Enterococcus faecalis from Galway and Dublin (Ireland) and Kelantan (Malaysia) showed MIC results of 4 to 8 mg/L and carried optrA. All Streptococcus pneumoniae, viridans-group streptococci and ß-haemolytic streptococci were inhibited by linezolid at ≤2, ≤2 and ≤1 mg/L, respectively, with equivalent MIC90 results (1 mg/L for all groups). CONCLUSIONS: These results document the continued long-term and stable in vitro potency of linezolid and reveal a limited number of isolates with decreased susceptibility to linezolid (i.e. MIC ≥4 mg/L). The latter isolates primarily showed mutations in the 23S rRNA gene and/or L3 protein, but cfr was not detected. Moreover, this study shows that isolates carrying the newly described ABC transporter optrA are not restricted to China.


Assuntos
Antibacterianos/farmacologia , Farmacorresistência Bacteriana , Monitoramento Epidemiológico , Bactérias Gram-Positivas/efeitos dos fármacos , Linezolida/farmacologia , Saúde Global , Humanos , Testes de Sensibilidade Microbiana , Mutação , Proteína Ribossômica L3 , Proteínas Ribossômicas/genética
9.
Antimicrob Agents Chemother ; 59(4): 2454-7, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25645839

RESUMO

Linezolid showed MIC50s and MIC90s of 1 µg/ml (for both) against Staphylococcus aureus. Two S. aureus strains exhibited higher MICs (4 to 8 µg/ml) caused by cfr and/or target site mutations, including the first detection of cfr in Poland. Linezolid (MIC50 and MIC90, 0.5 and 1 µg/ml) had potent MICs against coagulase-negative staphylococci (CoNS). Four CoNS had MICs of 16 to 128 µg/ml due to alterations in 23S rRNA and/or L3/L4. Linezolid inhibited all enterococci and streptococci at ≤2 µg/ml, except for one Enterococcus faecium strain (MIC, 8 µg/ml; G2576T [Escherichia coli numbering] mutation).


Assuntos
Antibacterianos/farmacologia , Linezolida/farmacologia , Infecções Bacterianas/microbiologia , Enterococcus faecium/efeitos dos fármacos , Escherichia coli/efeitos dos fármacos , Humanos , Testes de Sensibilidade Microbiana , Vigilância de Produtos Comercializados , Staphylococcus aureus/efeitos dos fármacos
10.
Am J Geriatr Psychiatry ; 23(11): 1172-8, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26245880

RESUMO

OBJECTIVES: The purpose of this study was to identify the barriers to seeking mental health treatment experienced by rural older adults. We also examined if barriers differed by age and worry severity. METHODS: Participants were 478 rural older adults responding to a flyer for a psychotherapy intervention study. Interested participants were screened by telephone, and barriers to mental health treatment were assessed. Participants completed a demographic questionnaire and the Penn State Worry Questionnaire-Abbreviated. RESULTS: The most commonly reported barrier to treatment was the personal belief that "I should not need help." Other commonly reported barriers included practical barriers (cost, not knowing where to go, distance), mistrust of mental health providers, not thinking treatment would help, stigma, and not wanting to talk with a stranger about private matters. Multivariable analyses indicated that worry severity and younger age were associated with reporting more barriers. CONCLUSIONS: Multiple barriers interfere with older adults seeking treatment for anxiety and depression. Older age is associated with fewer barriers, suggesting that the oldest old may have found strategies for overcoming these barriers. Young-old adults may benefit from interventions addressing personal beliefs about mental health and alternative methods of service delivery.


Assuntos
Serviços de Saúde Mental/estatística & dados numéricos , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , População Rural/estatística & dados numéricos , Fatores Etários , Idoso , Ansiedade/epidemiologia , Ansiedade/psicologia , Atitude Frente a Saúde , Feminino , Humanos , Masculino , Aceitação pelo Paciente de Cuidados de Saúde/psicologia , Inquéritos e Questionários
11.
Antimicrob Agents Chemother ; 58(2): 1243-7, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24323470

RESUMO

This study summarizes the linezolid susceptibility testing results for 7,429 Gram-positive pathogens from 60 U.S. sites collected during the 2012 sampling year for the LEADER Program. Linezolid showed potent activity when tested against 2,980 Staphylococcus aureus isolates, inhibiting all but 3 at ≤2 µg/ml. Similarly, linezolid showed coverage against 99.5% of enterococci, as well as for all streptococci tested. These results confirm a long record of linezolid activity against U.S. Gram-positive isolates since regulatory approval in 2000.


Assuntos
Acetamidas/farmacologia , Antibacterianos/farmacologia , Farmacorresistência Bacteriana/genética , Enterococcus/efeitos dos fármacos , Oxazolidinonas/farmacologia , Staphylococcus aureus/efeitos dos fármacos , Streptococcus/efeitos dos fármacos , Enterococcus/genética , Enterococcus/isolamento & purificação , Monitoramento Epidemiológico , Infecções por Bactérias Gram-Positivas/tratamento farmacológico , Infecções por Bactérias Gram-Positivas/microbiologia , Humanos , Linezolida , Testes de Sensibilidade Microbiana , Staphylococcus aureus/genética , Staphylococcus aureus/isolamento & purificação , Streptococcus/genética , Streptococcus/isolamento & purificação , Estados Unidos
12.
J Antimicrob Chemother ; 69(6): 1582-8, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24468866

RESUMO

OBJECTIVES: To summarize the activity and spectrum of linezolid and comparators tested against 7972 Gram-positive clinical isolates as part of the Zyvox(®) Annual Appraisal of Potency and Spectrum (ZAAPS) Program for 2012. Moreover, to provide molecular characterization for associated resistance mechanisms and epidemiological typing. METHODS: A total of 7972 isolates were collected from 73 medical centres (33 countries) on five continents. Isolates were tested for susceptibility by broth microdilution following the CLSI M07-A9 document. MIC interpretations were based on CLSI and EUCAST criteria. RESULTS: Linezolid showed MIC50 and MIC90 results of 1 and 2 mg/L, respectively, when tested against Staphylococcus aureus. These isolates were inhibited by linezolid at ≤2 mg/L, except for four S. aureus exhibiting higher MIC values (4-8 mg/L), which had cfr and/or target site mutations, including a first detection of cfr in an isolate from Brazil. Coagulase-negative staphylococci (CoNS) were susceptible to linezolid (MIC50/90, 0.5/1 mg/L), with only eight isolates exhibiting high MIC results (16-32 mg/L). These CoNS had cfr and/or single or multiple target site alterations in 23S rRNA and/or ribosomal proteins (L3, L4). The same species of linezolid-resistant CoNS collected from the same hospital were clonally related to those observed in previously surveyed years. Linezolid exhibited stable modal MIC and MIC50 results when tested against enterococci, regardless of the species or vancomycin resistance phenotype; in addition, linezolid inhibited all streptococci at ≤2 mg/L. CONCLUSIONS: This surveillance report documents stable linezolid activity and susceptibility rates against a large and longitudinal collection of clinical isolates worldwide.


Assuntos
Acetamidas/farmacologia , Anti-Infecciosos/farmacologia , Cocos Gram-Positivos/efeitos dos fármacos , Testes de Sensibilidade Microbiana , Oxazolidinonas/farmacologia , Saúde Global , Infecções por Bactérias Gram-Positivas/microbiologia , Cocos Gram-Positivos/isolamento & purificação , Humanos , Linezolida , Vigilância da População
13.
J Antimicrob Chemother ; 69(10): 2835-40, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-24920652

RESUMO

BACKGROUND: Community-acquired respiratory tract infections (CARTI) are commonly caused by Streptococcus pneumoniae (SPN) and empirically treated with azithromycin. This study assessed clinical cure rates in azithromycin-treated subjects with CARTI caused by azithromycin-susceptible (Azi-S) or azithromycin-resistant (Azi-R) SPN. METHODS: 1127 subjects with CARTI (402 acute otitis media, 309 community-acquired pneumonia, 255 acute bacterial exacerbations of chronic bronchitis and 161 acute bacterial sinusitis) in 13 Phase 3 clinical trials (1993-2007) had a confirmed pathogen, received azithromycin and were assessed for clinical cure/failure. 34.4% of subjects (388/1127) had a positive culture for SPN; 33.4% (376/1127) had Azi-S or Azi-R SPN. RESULTS: 28.9% (112/388) of subjects with SPN had Azi-R SPN: 35.7% (40/112) were low-level Azi-R SPN (LLAR; MIC 2-8 mg/L), while 64.3% (72/112) were high-level Azi-R SPN (HLAR; MIC ≥16 mg/L). Among Azi-S and Azi-R SPN CARTI subjects, clinical cure rates were: 86.2% (324/376) overall; 89.4% (236/264) for subjects with Azi-S SPN; 78.6% (88/112) for subjects with Azi-R SPN (P = 0.003, versus Azi-S); 77.5% (31/40) for subjects with LLAR SPN (P < 0.001); and 79.2% (57/72) for subjects with HLAR SPN (P = 0.122). CONCLUSIONS: Clinical cure rates in CARTI subjects treated with azithromycin were higher for Azi-S SPN (89.4%) versus Azi-R SPN (78.6%; P = 0.003). However, cure rates were not different for subjects infected with LLAR-SPN versus HLAR-SPN. At the observed prevalence of Azi-R SPN of 28.9%, an additional 3.1 clinical failures would be predicted, as a consequence of azithromycin resistance (LLAR and HLAR), per 100 subjects treated empirically with azithromycin.


Assuntos
Antibacterianos/uso terapêutico , Azitromicina/uso terapêutico , Infecções Comunitárias Adquiridas/tratamento farmacológico , Infecções Comunitárias Adquiridas/microbiologia , Infecções Respiratórias/tratamento farmacológico , Infecções Respiratórias/microbiologia , Streptococcus pneumoniae , Adolescente , Adulto , Antibacterianos/farmacologia , Azitromicina/farmacologia , Criança , Ensaios Clínicos Fase III como Assunto , Farmacorresistência Bacteriana , Humanos , Testes de Sensibilidade Microbiana , Fenótipo , Streptococcus pneumoniae/efeitos dos fármacos , Resultado do Tratamento , Adulto Jovem
14.
J Urol ; 192(1): 144-9, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24533998

RESUMO

PURPOSE: We determined the effect of an intensive lifestyle intervention on the prevalence, incidence and resolution of bothersome nocturia, increased daytime urinary voiding and urinary incontinence in overweight/obese men with type 2 diabetes after 1 year in the Look AHEAD trial. MATERIALS AND METHODS: A subset of male Look AHEAD participants was selected for this secondary data analysis. Overall 1,910 men with an average (mean ± SD) age of 59.9 ± 6.7 years and body mass index of 35.2 ± 5.5 kg/m(2) were randomized to an intensive lifestyle intervention or diabetes support and education group. All participants self-reported information regarding incontinence, nocturia and daytime urinary voiding at entry and 1 year. RESULTS: After 1 year the intensive lifestyle intervention group lost significantly more weight than the diabetes support and education group (9.4% ± 7.0% vs 0.7% ± 4.5%, respectively; p <0.001). The odds of prevalent urinary incontinence at 1 year were reduced by 38% in the intensive lifestyle intervention group compared to the diabetes support and education group. The prevalence of urinary incontinence decreased from 11.3% to 9.0% in the intensive lifestyle intervention group and increased from 9.7% to 11.6% in the diabetes support and education group. The intensive lifestyle intervention group also had increased odds of urinary incontinence resolving (OR 1.93, 95% CI 1.04-3.59, p = 0.04 and 56.0% vs 40.7%, p = 0.03) and trend toward reduced odds of new onset, incident urinary incontinence (OR 0.66, 95% CI 0.42-1.02, p = 0.06) compared with the diabetes support and education arm. In contrast, no differences between intensive lifestyle intervention and diabetes support and education were seen at 1 year for frequency of nocturia or frequency of daytime voiding. CONCLUSIONS: Intensive lifestyle intervention should be considered for the treatment of urinary incontinence in overweight/obese men with type 2 diabetes.


Assuntos
Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/terapia , Estilo de Vida , Obesidade/complicações , Obesidade/terapia , Sobrepeso/complicações , Sobrepeso/terapia , Incontinência Urinária/etiologia , Incontinência Urinária/prevenção & controle , Humanos , Masculino , Pessoa de Meia-Idade , Método Simples-Cego
15.
J Geriatr Psychiatry Neurol ; 27(2): 94-102, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24584465

RESUMO

Elevated depressive symptoms (DS) are associated with incident mild cognitive impairment and probable dementia in postmenopausal women. We examined the association of elevated DS with domain-specific cognitive changes and the moderating role of cardiovascular risk factor severity and cardiovascular disease (CVD). A total of 2221 elderly women who participated in the Women's Health Initiative Study of Cognitive Aging were separated into those with (N = 204) and without (N = 2017) elevated DS. The DS and multidomain cognitive outcomes were measured annually for an average follow-up of 5.04 years. Women with elevated DS showed baseline multidomain cognitive deficits but longitudinal declines in global cognition only. Persistent DS was related to greater global cognition, verbal knowledge and fluency, and memory declines. Significant DS-CVD interactions were observed cross-sectionally (but not longitudinally) for figural memory and fine motor speed. Future studies should investigate the role of nonvascular mechanisms linking DS and cognitive decline.


Assuntos
Doenças Cardiovasculares/epidemiologia , Cognição/fisiologia , Envelhecimento Cognitivo/fisiologia , Envelhecimento Cognitivo/psicologia , Disfunção Cognitiva/diagnóstico , Disfunção Cognitiva/epidemiologia , Demência/epidemiologia , Depressão/diagnóstico , Idoso , Idoso de 80 Anos ou mais , Envelhecimento/psicologia , Transtornos Cognitivos/diagnóstico , Estudos Transversais , Demência/diagnóstico , Feminino , Humanos , Infarto do Miocárdio/epidemiologia , Pós-Menopausa , Fatores de Risco , Índice de Gravidade de Doença , Doenças Vasculares/epidemiologia , Saúde da Mulher
16.
J Urol ; 187(3): 939-44, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22264468

RESUMO

PURPOSE: We determined the effect of weight loss on the prevalence, incidence and resolution of weekly or more frequent urinary incontinence in overweight/obese women with type 2 diabetes after 1 year of intervention in the Look AHEAD (Action for Health in Diabetes) trial. MATERIALS AND METHODS: Women in this substudy (2,739, mean ± SD age 57.9 ± 6.8 years, body mass index 36.5 ± 6.1 kg/m(2)) were randomized into an intensive lifestyle weight loss intervention or a diabetes support and education control condition. RESULTS: At baseline 27% of participants reported urinary incontinence on a validated questionnaire (no significant difference by intensive lifestyle intervention vs diabetes support and education). After 1 year of intervention the intensive lifestyle intervention group in this substudy lost 7.7 ± 7.0 vs 0.7 ± 5.0 kg in the diabetes support and education group. At 1 year fewer women in the intensive lifestyle intervention group reported urinary incontinence (25.3% vs 28.6% in the diabetes support and education group, p = 0.05). Among participants without urinary incontinence at baseline 10.5% of intensive lifestyle intervention and 14.0% of diabetes support and education participants experienced urinary incontinence after 1 year (p = 0.02). There were no significant group differences in the resolution of urinary incontinence (p >0.17). Each kg of weight lost was associated with a 3% reduction in the odds of urinary incontinence developing (p = 0.01), and weight losses of 5% to 10% reduced these odds by 47% (p = 0.002). CONCLUSIONS: Moderate weight loss reduced the incidence but did not improve the resolution rates of urinary incontinence at 1 year among overweight/obese women with type 2 diabetes. Weight loss interventions should be considered for the prevention of urinary incontinence in overweight/obese women with diabetes.


Assuntos
Distribuição de Qui-Quadrado , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/prevenção & controle , Obesidade/complicações , Obesidade/prevenção & controle , Incontinência Urinária/etiologia , Incontinência Urinária/prevenção & controle , Redução de Peso , Análise de Variância , Diabetes Mellitus Tipo 2/epidemiologia , Feminino , Humanos , Incidência , Estilo de Vida , Modelos Logísticos , Pessoa de Meia-Idade , Obesidade/epidemiologia , Prevalência , Resultado do Tratamento , Estados Unidos/epidemiologia , Incontinência Urinária/epidemiologia
17.
Int Psychogeriatr ; 24(8): 1252-64, 2012 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-22301077

RESUMO

BACKGROUND: Antidepressants are commonly prescribed medications in the elderly, but their relationship with incident mild cognitive impairment (MCI) and probable dementia is unknown. METHODS: The study cohort included 6,998 cognitively healthy, postmenopausal women, aged 65-79 years, who were enrolled in a hormone therapy clinical trial and had baseline depressive symptoms and antidepressant use history assessments at enrollment, and at least one postbaseline cognitive measurement. Participants were followed annually and the follow-up averaged 7.5 years for MCI and probable dementia outcomes. A central adjudication committee classified the presence of MCI and probable dementia based on extensive neuropsychiatric examination. RESULTS: Three hundred and eighty-three (5%) women were on antidepressants at baseline. Antidepressant use was associated with a 70% increased risk of MCI, after controlling for potential covariates including the degree of depressive symptom severity. Selective serotonin reuptake inhibitors (SSRIs) and tricyclic antidepressants (TCAs) were both associated with MCI (SSRIs: hazard ratios (HR), 1.78 [95% CI, 1.01-3.13]; TCAs: HR, 1.78 [95% CI, 0.99-3.21]). Depressed users (HR, 2.44 [95% CI, 1.24-4.80]), non-depressed users (HR, 1.79 [95% CI, 1.13-2.85]), and depressed non-users (HR, 1.62 [95% CI, 1.13-2.32]) had increased risk of incident MCI. Similarly, all three groups had increased risk of either MCI or dementia, relative to the control cohort. CONCLUSIONS: Antidepressant use and different levels of depression severity were associated with subsequent cognitive impairment in a large cohort of postmenopausal women. Future research should examine the role of antidepressants in the depression-dementia relationship and determine if antidepressants can prevent incident MCI and dementia in individuals with late-life depression subtypes with different levels of severity.


Assuntos
Antidepressivos/uso terapêutico , Climatério/psicologia , Disfunção Cognitiva/induzido quimicamente , Disfunção Cognitiva/epidemiologia , Demência/induzido quimicamente , Demência/epidemiologia , Transtorno Depressivo/tratamento farmacológico , Transtorno Depressivo/epidemiologia , Terapia de Reposição de Estrogênios , Idoso , Disfunção Cognitiva/diagnóstico , Estudos de Coortes , Comorbidade , Estudos Transversais , Demência/diagnóstico , Transtorno Depressivo/diagnóstico , Feminino , Seguimentos , Inquéritos Epidemiológicos , Humanos , Incidência , Modelos de Riscos Proporcionais , Estudos Prospectivos , Fatores de Risco , Estados Unidos
18.
Am J Geriatr Psychiatry ; 18(2): 177-86, 2010 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-20104074

RESUMO

OBJECTIVE: To estimate the frequency of depressive symptoms and selected psychiatric disorders in the Women's Health Initiative Memory Study (WHIMS) cohort and related them to cognitive syndromes. DESIGN: WHIMS was a randomized, double-blinded, placebo-controlled prevention clinical trial examining whether opposed and unopposed hormone therapy reduced the risk of dementia in healthy postmenopausal women. Participants scoring below a designated cutpoint on a cognitive screener received a comprehensive neuropsychiatric workup and adjudicated outcome of no cognitive impairment, mild cognitive impairment, or probable dementia. PARTICIPANTS: Seven thousand four hundred seventy-nine WHIMS participants between age 65 and 79 years and free of dementia at the time of enrollment in WHIMS. Five hundred twenty-one unique participants contributed complete data required for these analyses. MEASURES: Depressive symptoms were measured with the 15-item Geriatric Depression Scale and the presence of selected psychiatric disorders (major depression, generalized anxiety, and panic and alcohol abuse) was made using the PRIME-MD. RESULTS: The 18% of women had at least one psychiatric disorder with depression being the most common (16%) followed by general anxiety or panic (6%) and alcohol abuse (1%). Depression and the presence of a psychiatric disorder were associated with impaired cognitive status. Participants having a psychiatric disorder were more than twice as likely to be diagnosed with cognitive impairment as those with no psychiatric disorder (odds ratio = 2.06, 95% confidence interval = 1.17-3.60). Older age, white race, and diabetes were also associated with cognitive impairment. CONCLUSION: The frequency of a psychiatric disorder is associated with poorer cognitive functioning among older women enrolled in WHIMS. That approximately one in five women had a probable psychiatric disorder, most typically depression, highlights the need for greater detection and treatment efforts in this population.


Assuntos
Transtornos Cognitivos/epidemiologia , Transtornos Mentais/epidemiologia , Pós-Menopausa/psicologia , Idoso , Transtornos Cognitivos/complicações , Estudos de Coortes , Feminino , Humanos , Transtornos Mentais/complicações , Prevalência , Ensaios Clínicos Controlados Aleatórios como Assunto , Fatores de Risco , Saúde da Mulher
19.
Am J Geriatr Psychiatry ; 18(12): 1141-5, 2010 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-20808099

RESUMO

BACKGROUND: The Geriatric Psychiatry Outreach (GO) Program began in 2005 and provides in-home psychiatric evaluation and treatment for older adults who have difficulty getting to an office-based setting. METHOD: An initial assessment was conducted on the first 100 patients seen by the program and follow-up treatment was provided as clinically indicated. RESULTS: The mean age of patients seen was 79.7 (SD: 8.2), 74% were women, and the most common psychiatric diagnoses were depression (50%) and dementia (45%), with a mean of 1.4 (SD: 0.6) psychiatric diagnoses per patient. The patients had a mean of 4.8 (SD: 2.9) medical diagnoses and were on a mean of 6.8 (SD: 4.0) prescription and 2.2 (SD: 1.2) nonprescription medications. Patients received a mean of 4.2 (SD: 4.2) in-person visits and a mean of 30.2 (SD: 36.5) additional contacts related to their care, such as phone calls, e-mails, and faxes. CONCLUSIONS: Providing psychiatric services at home for older adults with mental illness is a much needed but rarely available service. Such patients typically have a complex combination of medical and psychiatric diagnoses and benefit from contacts in addition to the face-to-face visits.


Assuntos
Serviços de Saúde para Idosos/estatística & dados numéricos , Serviços de Assistência Domiciliar/estatística & dados numéricos , Serviços de Saúde Mental/estatística & dados numéricos , Idoso , Idoso de 80 Anos ou mais , Uso de Medicamentos/estatística & dados numéricos , Feminino , Humanos , Masculino , Transtornos Mentais/diagnóstico , Transtornos Mentais/tratamento farmacológico , Pessoa de Meia-Idade , Avaliação de Processos e Resultados em Cuidados de Saúde/métodos
20.
Am Heart J ; 157(2): 278-84, 2009 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-19185634

RESUMO

BACKGROUND: Although high blood pressure is associated with significant morbidity and mortality, the proportion reaching the goal blood pressures as outlined in the Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, Treatment of High Blood Pressure (JNC 7) is low. We conducted a randomized trial in primary care practices of a multifactorial intervention targeted to improve providers' adherence to hypertension guidelines. METHOD: A total of 61 primary care practices in North Carolina were randomized to receive either a multifactorial intervention (guideline dissemination via a continuing medical education session, academic detailing sessions, audit and feedback on preintervention rates of adherence, and automated blood pressure machines) or an attention control of similar magnitude but targeted at a different guideline. Outcomes were determined through review of patient charts conducted by an independent masked quality assurance organization. RESULTS: We found no difference between the 2 groups in any of the adherence measures including no difference in the percentage of patients at goal (intervention 49.2%, control 50.6%), with undiagnosed hypertension (18.1% vs 13.6%), average systolic (126 vs 125.1 mm Hg), or diastolic blood pressure (73.1 vs 73.4 mm Hg). Similarly, there was no difference in provider adherence to treatment recommendations (use of thiazide-type diuretic as first-line therapy: 32% vs 29.5%; use of 2-drug therapy in stage 2 hypertension: 11.3% vs 10.4%). CONCLUSION: An intensive, multifactorial intervention did not improve adherence to national hypertension guidelines among community-based primary care. Efforts should be focused on other types of interventions to improve rates of control of hypertension.


Assuntos
Fidelidade a Diretrizes , Hipertensão/tratamento farmacológico , Atenção Primária à Saúde/normas , Educação Médica , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , North Carolina
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