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1.
Pain Manag Nurs ; 23(6): 800-810, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-36153218

RESUMO

BACKGROUND: Acupuncture and acupressure are not being systematically used in the management of postoperative nausea and vomiting and pain, despite being included in the guidelines. AIM: To examine the beliefs, attitudes, and knowledge of Australian nurses/midwives and doctors toward the perioperative use of AA for the management of postoperative nausea and vomiting and pain; to explore the barriers and enablers influencing acupuncture and acupressure integration into hospital setting. METHODS: A mixed-mode approach was undertaken for data collection. An online approach was used to recruit respondents from Australian College of Perioperative Nurses. Three hospitals from three different Australian states were selected via convenience sampling. RESULTS: A total of 421 usable surveys were included in data analysis. The respondents comprised 14.3% doctors and 72.9% nurses/midwives. Overall, 69.4% were female, 85% were trained in Australia with 35% and 51.4% having knowledge or personal exposure to AA in general respectively. Over 60% of the respondents agreed AA should be routinely integrated into perioperative care, and over 80% would recommend AA to their patients if it was provided at their hospital, and, 75% would be willing to receive further education. The three main reported barriers included: perceived lack of scientific evidence (80.9%), unavailability of credentialed provider (77.2%) and lack of reimbursement (60.4%). CONCLUSIONS: Positive attitudes are reported by Australian doctors and nurses toward AA. This is despite of low levels of knowledge or personal exposure to AA. Further studies are required to explore the implementation of barriers and address respondent calls for further education.


Assuntos
Acupressão , Terapia por Acupuntura , Enfermeiras e Enfermeiros , Humanos , Feminino , Masculino , Náusea e Vômito Pós-Operatórios , Austrália , Atitude do Pessoal de Saúde , Inquéritos e Questionários , Assistência Perioperatória , Dor
2.
Thromb J ; 20(1): 17, 2022 Apr 11.
Artigo em Inglês | MEDLINE | ID: mdl-35410340

RESUMO

BACKGROUND: Tranexamic acid (TXA) is an antifibrinolytic agent frequently used in elective surgery to reduce blood loss. We recently found it also acts as a potent immune-modulator in patients undergoing cardiac surgery. METHODS: Patients undergoing lower limb surgery were enrolled into the "Tranexamic Acid in Lower Limb Arthroplasty" (TALLAS) pilot study. The cellular immune response was characterised longitudinally pre- and post-operatively using full blood examination (FBE) and comprehensive immune cell phenotyping by flowcytometry. Red blood cells and platelets were determined in the FBE and levels of T cell cytokines and the plasmin-antiplasmin complex determined using ELISA. RESULTS: TXA administration increased the proportion of circulating CD141+ conventional dendritic cells (cDC) on post-operative day (POD) 3. It also reduced the expression of CD83 and TNFR2 on classical monocytes and levels of circulating IL-10 at the end of surgery (EOS) time point, whilst increasing the expression of CCR4 on natural killer (NK) cells at EOS, and reducing TNFR2 on POD-3 on NK cells. Red blood cells and platelets were decreased to a lower extent at POD-1 in the TXA group, representing reduced blood loss. CONCLUSION: In this investigation we have extended our examination on the immunomodulatory effects of TXA in surgery by also characterising the end of surgery time point and including B cells and neutrophils in our immune analysis, elucidating new immunophenotypic changes in phagocytes as well as NK cells. This study enhances our understanding of TXA-mediated effects on the haemostatic and immune response in surgery, validating changes in important functional immune cell subsets in orthopaedic patients.

3.
J Gen Intern Med ; 37(Suppl 1): 80-82, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35349020

RESUMO

In 2017, ten veteran patients with the shared experience of living with chronic pain united to form a Veteran Engagement Panel (VEP) to support the Patient-Centered Outcomes Research Institute® (PCORI®)funded Veterans Pain Care Organizational Improvement Comparative Effectiveness (VOICE) Study. The study, conducted at ten Veterans Affairs (VA) sites, compares two team-based approaches to improve pain management and reduce potential harms of opioid therapy. The panel shares ten best practices for sustaining a successful engagement partnership.


Assuntos
Dor Crônica , Veteranos , Dor Crônica/terapia , Humanos , Manejo da Dor , Avaliação de Resultados da Assistência ao Paciente , Estados Unidos , United States Department of Veterans Affairs
4.
Molecules ; 26(10)2021 May 19.
Artigo em Inglês | MEDLINE | ID: mdl-34069343

RESUMO

Soy protein isolate (SPI) powders often have poor water solubility, particularly at pH values close to neutral, which is an attribute that is an issue for its incorporation into complex nutritional systems. Therefore, the objective of this study was to improve SPI solubility while maintaining low viscosity. Thus, the intention was to examine the solubility and rheological properties of a commercial SPI powder at pH values of 2.0, 6.9, and 9.0, and determine if heat treatment at acidic or alkaline conditions might positively influence protein solubility, once re-adjusted back to pH 6.9. Adjusting the pH of SPI dispersions from pH 6.9 to 2.0 or 9.0 led to an increase in protein solubility with a concomitant increase in viscosity at 20 °C. Meanwhile, heat treatment at 90 °C significantly improved the solubility at all pH values and resulted in a decrease in viscosity in samples heated at pH 9.0. All SPI dispersions measured under low-amplitude rheological conditions showed elastic-like behaviour (i.e., G' > G″), indicating a weak "gel-like" structure at frequencies less than 10 Hz. In summary, the physical properties of SPI can be manipulated through heat treatment under acidic or alkaline conditions when the protein subunits are dissociated, before re-adjusting to pH 6.9.


Assuntos
Reologia , Proteínas de Soja/química , Concentração de Íons de Hidrogênio , Solubilidade , Viscosidade
5.
Infect Control Hosp Epidemiol ; 41(6): 645-652, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-32183916

RESUMO

OBJECTIVE: Antimicrobial use in the surgical setting is common and frequently inappropriate. Understanding the behavioral context of antimicrobial use is a critical step to developing stewardship programs. DESIGN: In this study, we employed qualitative methodologies to describe the phenomenon of antimicrobial use in 2 surgical units: orthopedic surgery and cardiothoracic surgery. SETTING: This study was conducted at a public, quaternary, university-affiliated hospital. PARTICIPANTS: Healthcare professionals from the 2 surgical unit teams participated in the study. METHODS: We used focused ethnographic and face-to-face semi-structured interviews to observe antimicrobial decision-making behaviors across the patient's journey from the preadmission clinic to the operating room to the postoperative ward. RESULTS: We identified 4 key themes influencing decision making in the surgical setting. Compartmentalized communication (theme 1) was observed with demarcated roles and defined pathways for communication (theme 2). Antimicrobial decisions in the operating room were driven by the most senior members of the team. These decisions, however, were delegated to more junior members of staff in the ward and clinic environment (theme 3). Throughout the patient's journey, communication with the patient about antimicrobial use was limited (theme 4). CONCLUSIONS: Approaches to decision making in surgery are highly structured. Although this structure appears to facilitate smooth flow of responsibility, more junior members of the staff may be disempowered. In addition, opportunities for shared decision making with patients were limited. Antimicrobial stewardship programs need to recognize the hierarchal structure as well as opportunities to engage the patient in shared decision making.


Assuntos
Anti-Infecciosos , Tomada de Decisões , Assistência Perioperatória , Gestão de Antimicrobianos , Austrália , Hospitais Públicos , Hospitais Universitários , Humanos , Procedimentos Ortopédicos , Pesquisa Qualitativa , Procedimentos Cirúrgicos Torácicos
6.
Perfusion ; 35(2): 96-103, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31238794

RESUMO

BACKGROUND/OBJECTIVE: Reduction of brain temperature remains the most common method of neuroprotection against ischemic injury employed during cardiac surgery. However, cooling delivered via the cardiopulmonary bypass circuit is brief and cooling the body core along with the brain has been associated with a variety of unwanted effects. This study investigated the feasibility and safety of a novel selective brain cooling approach to induce rapid, brain-targeted hypothermia independent of the cardiopulmonary bypass circuit. METHODS: This first-in-human feasibility study enrolled five adults undergoing aortic valve replacement with cardiopulmonary bypass support. During surgery, the NeuroSave system circulated chilled saline within the pharynx and upper esophagus. Brain and body core temperature were continuously monitored. Adverse effects, cardiopulmonary function, and device function were noted. RESULTS: Patient 1 received cooling fluid for an insignificant period, and Patients 2-5 successfully underwent the cooling procedure using the NeuroSave system for 56-89 minutes. Cooling fluid was 12°C for Patients 1-3, 6°C for Patient 4, and 2°C for Patient 5. There were no NeuroSave-related adverse events and no alterations in cardiopulmonary function during NeuroSave use. Brain temperature decreased by 3°C within 15 minutes and remained at least 3.5°C colder than the body core. During a brief episode of hypotension in one patient, the brain cooled an additional 4°C in 2 minutes, briefly reaching 27.4°C. CONCLUSION: The NeuroSave system can induce rapid brain-targeted hypothermia and simultaneously maintain a favorable body-brain temperature gradient, even during hypotension. Further studies are required to evaluate the function of the system during longer periods of use.


Assuntos
Lesões Encefálicas/terapia , Encéfalo/fisiopatologia , Hipotermia Induzida/métodos , Idoso , Idoso de 80 Anos ou mais , Estudos de Viabilidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos
8.
J Am Coll Cardiol ; 70(14): 1785-1822, 2017 Oct 03.
Artigo em Inglês | MEDLINE | ID: mdl-28886926

RESUMO

In 2016, the American College of Cardiology published the first expert consensus decision pathway (ECDP) on the role of non-statin therapies for low-density lipoprotein (LDL)-cholesterol lowering in the management of atherosclerotic cardiovascular disease (ASCVD) risk. Since the publication of that document, additional evidence and perspectives have emerged from randomized clinical trials and other sources, particularly considering the longer-term efficacy and safety of proprotein convertase subtilisin/kexin 9 (PCSK9) inhibitors in secondary prevention of ASCVD. Most notably, the FOURIER (Further Cardiovascular Outcomes Research with PCSK9 Inhibition in Subjects with Elevated Risk) trial and SPIRE-1 and -2 (Studies of PCSK9 Inhibition and the Reduction of Vascular Events), assessing evolocumab and bococizumab, respectively, have published final results of cardiovascular outcomes trials in patients with clinical ASCVD and in a smaller number of high-risk primary prevention patients. In addition, further evidence on the types of patients most likely to benefit from the use of ezetimibe in addition to statin therapy after acute coronary syndrome has been published. Based on results from these important analyses, the ECDP writing committee judged that it would be desirable to provide a focused update to help guide clinicians more clearly on decision making regarding the use of ezetimibe and PCSK9 inhibitors in patients with clinical ASCVD with or without comorbidities. In the following summary table, changes from the 2016 ECDP to the 2017 ECDP Focused Update are highlighted, and a brief rationale is provided. The content of the full document has been changed accordingly, with more extensive and detailed guidance regarding decision making provided both in the text and in the updated algorithms. Revised recommendations are provided for patients with clinical ASCVD with or without comorbidities on statin therapy for secondary prevention. The ECDP writing committee judged that these new data did not warrant changes to the decision pathways and algorithms regarding the use of ezetimibe or PCSK9 inhibitors in primary prevention patients with LDL-C <190 mg/dL with or without diabetes mellitus or patients without ASCVD and LDL-C ≥190 mg/dL not due to secondary causes. Based on feedback and further deliberation, the ECDP writing committee down-graded recommendations regarding bile acid sequestrant use, recommending bile acid sequestrants only as optional secondary agents for consideration in patients intolerant to ezetimibe. For clarification, the writing committee has also included new information on diagnostic categories of heterozygous and homozygous familial hypercholesterolemia, based on clinical criteria with and without genetic testing. Other changes to the original document were kept to a minimum to provide consistent guidance to clinicians, unless there was a compelling reason or new evidence, in which case justification is provided.


Assuntos
Anticolesterolemiantes/farmacologia , Cardiologia/métodos , Doença da Artéria Coronariana/prevenção & controle , Ezetimiba/farmacologia , Hipercolesterolemia/tratamento farmacológico , Conduta do Tratamento Medicamentoso/organização & administração , Quimioprevenção/métodos , LDL-Colesterol/análise , Consenso , Inibidores Enzimáticos/farmacologia , Humanos , Hipercolesterolemia/diagnóstico , Sequestrantes/farmacologia , Estados Unidos
9.
Am J Cardiol ; 120(2): 262-266, 2017 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-28545627

RESUMO

Chronic kidney disease (CKD) is associated with worse survival in patients with heart disease including those with implantable devices. Cardiac resynchronization therapy (CRT) can potentially improve renal function. To assess the relation between the change in renal function and survival with CRT, 238 patients undergoing initial CRT with defibrillator implantation between 2002 and 2011 were followed. The primary end point was all-cause mortality. The estimated glomerular filtration rate (eGFR), before implantation and 6 ± 3 months after CRT was calculated. Patients were grouped at baseline into mild (stage I/II) or advanced (stage III/IV) CKD. Patients with end-stage renal disease were excluded. The mean follow-up time was 4.3 years. Multivariate analysis of baseline clinical characteristics showed that only renal function predicted the change in eGFR over the first 6 months of CRT. In the subgroup with mild CKD, eGFR decreased (78.5 ± 17.3 to 67.8 ± 26.8 p <0.001), whereas eGFR did not change in the subgroup with advanced CKD (45.6 ± 11.1 to 46.8 ± 17.0, p = 0.46). Patients with advanced CKD had higher mortality than those with mild CKD (p <0.002). In both subgroups, an increase in eGFR was associated with improved survival (hazard ratio = 0.79, p <0.001). In conclusion, baseline renal function and the subsequent change in eGFR are associated with long-term survival with CRT.


Assuntos
Terapia de Ressincronização Cardíaca/métodos , Taxa de Filtração Glomerular/fisiologia , Insuficiência Cardíaca/terapia , Rim/fisiopatologia , Insuficiência Renal Crônica/fisiopatologia , Idoso , Causas de Morte/tendências , Feminino , Seguimentos , Insuficiência Cardíaca/complicações , Insuficiência Cardíaca/mortalidade , Humanos , Incidência , Testes de Função Renal , Masculino , Pessoa de Meia-Idade , Prognóstico , Insuficiência Renal Crônica/complicações , Insuficiência Renal Crônica/epidemiologia , Estudos Retrospectivos , Fatores de Risco , South Carolina/epidemiologia , Fatores de Tempo
10.
mSystems ; 1(3)2016.
Artigo em Inglês | MEDLINE | ID: mdl-27822529

RESUMO

A DNA sequencing-based strategy was applied to study the microbiology of Continental-type cheeses with a pink discoloration defect. The basis for this phenomenon has remained elusive, despite decades of research. The bacterial composition of cheese containing the defect was compared to that of control cheese using 16S rRNA gene and shotgun metagenomic sequencing as well as quantitative PCR (qPCR). Throughout, it was apparent that Thermus, a carotenoid-producing genus, was present at higher levels in defect-associated cheeses than in control cheeses. Prompted by this finding and data confirming the pink discoloration to be associated with the presence of a carotenoid, a culture-based approach was employed, and Thermus thermophilus was successfully cultured from defect-containing cheeses. The link between Thermus and the pinking phenomenon was then established through the cheese defect equivalent of Koch's postulates when the defect was recreated by the reintroduction of a T. thermophilus isolate to a test cheese during the manufacturing process. IMPORTANCE Pink discoloration in cheese is a defect affecting many cheeses throughout the world, leading to significant financial loss for the dairy industry. Despite decades of research, the cause of this defect has remained elusive. The advent of high-throughput, next-generation sequencing has revolutionized the field of food microbiology and, with respect to this study, provided a means of testing a possible microbial basis for this defect. In this study, a combined 16S rRNA, whole-genome sequencing, and quantitative PCR approach was taken. This resulted in the identification of Thermus, a carotenoid-producing thermophile, in defect-associated cheeses and the recreation of the problem in cheeses to which Thermus was added. This finding has the potential to lead to new strategies to eliminate this defect, and our method represents an approach that can be employed to investigate the role of microbes in other food defects of unknown origin.

11.
Pacing Clin Electrophysiol ; 39(8): 863-9, 2016 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-27197959

RESUMO

BACKGROUND: Cardiac resynchronization therapy (CRT) improves functional status, reduces heart failure hospitalizations, and decreases mortality. Several comorbidities including renal function affect outcomes with CRT. However, moderate to severe chronic kidney disease (CKD) was an exclusion criterion in the large randomized control trials. OBJECTIVE: To evaluate the association of renal function on survival following CRT implantation. METHODS: This was a retrospective analysis of 432 consecutive patients implanted with an implantable cardioverter defibrillator with CRT (CRT-D). The primary end point was defined as death by any cause, and it was determined using hospital records and the U.S. Social Security Death Index. A Kaplan-Meier analysis was performed separating renal dysfunction into renal stage based on glomerular filtration rate. Multivariate analysis was performed to assess the clinical predictors of mortality. RESULTS: Patients were followed for up to 12 years with a mean follow-up time of 4.3 ± 3.2 years. A total of 164 patients (39.3%) died over the course of the study. Patients with normal and mild renal diseases (Stages 1 and 2) had improved survival compared with those with moderate-, severe-, or end-stage (Stages 3-5) renal disease. This effect remained statistically significant after multivariate analysis. The estimated 5-year mortality was 36.3% for stage 1, 33.4% for stage 2, 40.6% for stage 3, and 62.1% for stage 4/5 kidney disease (P = 0.004 by log-rank test). CONCLUSION: CKD is a strong and an independent predictor of long-term mortality among patients undergoing CRT-D implantation.


Assuntos
Terapia de Ressincronização Cardíaca/mortalidade , Desfibriladores Implantáveis/estatística & dados numéricos , Insuficiência Cardíaca/mortalidade , Insuficiência Cardíaca/prevenção & controle , Insuficiência Renal Crônica/mortalidade , Idoso , Causalidade , Estudos de Coortes , Comorbidade , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco , Taxa de Sobrevida , Resultado do Tratamento , Estados Unidos/epidemiologia
13.
BMC Med Educ ; 14: 84, 2014 Apr 22.
Artigo em Inglês | MEDLINE | ID: mdl-24755276

RESUMO

BACKGROUND: In 2011, the Accreditation Council of Graduate Medical Education implemented updated guidelines for medical resident duty hours, further limiting continuous work hours for first-year residents. We sought to investigate the impact of these restrictions on graduate medical education among internal medicine residents. METHODS: We conducted eight focus groups with internal medicine residents at the University of Alabama at Birmingham in 06/2012-07/2012. Discussion questions included, "How do you feel the 2011 ACGME work hour restrictions have impacted your graduate medical education?" Transcripts of the focus groups were reviewed and themes identified using a deductive/inductive approach. Participants completed a survey to collect demographic information and future practice plans. RESULTS: Thirty-four residents participated in our focus groups. Five themes emerged: decreased teaching, decreased experiential learning, shift-work mentality, tension between residency classes, and benefits and opportunities. Residents reported that since implementation of the guidelines, teaching was often deferred to complete patient-care tasks. Residents voiced concern that PGY-1 s were not receiving adequate clinical experience and that procedural and clinical reasoning skills are being negatively impacted. PGY-1 s reported being well-rested and having increased time for independent study. CONCLUSIONS: Residents noted a decline in teaching and are concerned with the decrease in "hands-on" clinical education that is inevitably impacted by fewer hours in the hospital, though some benefits were also reported. Future studies are needed to further elucidate the impact of decreased resident work hours on graduate medical education.


Assuntos
Atitude do Pessoal de Saúde , Educação de Pós-Graduação em Medicina/normas , Medicina Interna/educação , Internato e Residência/normas , Acreditação/normas , Alabama , Educação de Pós-Graduação em Medicina/organização & administração , Feminino , Grupos Focais , Humanos , Medicina Interna/normas , Internato e Residência/organização & administração , Masculino , Admissão e Escalonamento de Pessoal/normas , Pesquisa Qualitativa , Estados Unidos
14.
Pain Med ; 15(5): 791-806, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24517173

RESUMO

OBJECTIVE: To develop a framework for integrating pharmacogenetics with clinical pharmacokinetics for personalized oxycodone dosing based on a patient's CYP2D6 phenotype. DESIGN: Randomized, crossover, double-blind, placebo-controlled. Subjects were genotyped as CYP2D6 ultra-rapid metabolizer, extensive metabolizer, or poor metabolizer phenotypes. Five subjects from each phenotype were randomly selected for inclusion in our study. SETTING: Studies were performed in silico. SUBJECTS: The subjects were male, age 26 years, height 181.2 cm, and weight 76.3 kg. They were healthy without comorbidities, and their medical examinations were normal. METHODS: The trajectories of phenotype-specific plasma oxycodone concentration-time profiles were analyzed using weighted nonlinear least-squares regression with WinSAAM software. A global two-stage population-based model data analysis procedure was used to analyze the studies. Clinical pharmacokinetics were calculated using the R package cpk, eliminating the need to perform hand-calculations. RESULTS: Our study shows how clinicians can reduce risk and increase effectiveness for oxycodone dosing by (1) determining the patient's likely metabolic response through testing a patient's CYP2D6 phenotype, and (2) calculating clinical pharmacokinetics specific to the patient's CYP2D6 phenotype to design a personalized oxycodone dosing regimen. CONCLUSIONS: Personalized oxycodone dosing is a new tool for a clinician treating chronic pain patients requiring oxycodone. By expressing a patient's CYP2D6 phenotype pharmacokinetically, a clinician (at least theoretically) can improve the safety and efficacy of oxycodone and decrease the risk for iatrogenically induced overdose or death. Pharmacokinomics provides a general framework for the integration of pharmacogenetics with clinical pharmacokinetics into clinical practice for gene-based prescribing.


Assuntos
Analgésicos Opioides/farmacocinética , Dor Crônica/tratamento farmacológico , Modelos Biológicos , Oxicodona/farmacocinética , Farmacogenética/métodos , Medicina de Precisão/métodos , Adulto , Algoritmos , Analgésicos Opioides/administração & dosagem , Analgésicos Opioides/efeitos adversos , Dor Crônica/genética , Estudos Cross-Over , Citocromo P-450 CYP2D6/genética , Método Duplo-Cego , Genótipo , Humanos , Masculino , Dinâmica não Linear , Oxicodona/administração & dosagem , Oxicodona/efeitos adversos , Dor Pós-Operatória/tratamento farmacológico , Dor Pós-Operatória/genética , Fenótipo , Risco
15.
Med Hypotheses ; 82(3): 390-4, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24495562

RESUMO

We propose a hypothesis for predicting addictive potential of oral drugs, in general, and oxycodone's addictive potential, in particular. We hypothesize that a patient's CYP2D6 phenotype determines oxycodone's addictive potential, in part, via genotype-specific regulation of its clearance; although, other possible modulators of oxycodone's addiction potential exist. For example, brain CYPs related to phenotype could be involved. To pilot test our hypothesis, we used a mathematical model which postulates that oxycodone's addictive potential is given by: LAP=E/(ka/ke), where LAP represents addictive potential, E represents euphoric potency, ka is the absorption rate constant of drug from the gastrointestinal tract, and ke is the systemic elimination rate constant of drug by all processes responsible for its removal from plasma. Using CYP2D6 phenotype-specific oxycodone pharmacokinetic parameter values derived from published data, our hypothesis predicted that the canonical order of oxycodone's addictive potential was UM>EM>IM>PM, with corresponding LAP values of 0.24, 0.21, 0.17, and 0.15 respectively. Our hypothesis about oxycodone's addictive potential may provide a unifying approach useful for both personalized medicine dosing and predicting addictive potential of oral drugs in humans, since it is based on both oxycodone's pharmacogenetics and pharmacokinetics.


Assuntos
Citocromo P-450 CYP2D6/genética , Predisposição Genética para Doença , Transtornos Relacionados ao Uso de Opioides/prevenção & controle , Oxicodona/efeitos adversos , Humanos , Transtornos Relacionados ao Uso de Opioides/genética , Fenótipo
16.
Int J Clin Exp Med ; 7(12): 5629-35, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25664082

RESUMO

OBJECTIVE: Global aortic pulse wave velocity (PWVg) is a simple, accurate, and noninvasive method to determine large artery stiffness. The goal of our study was to investigate the relationship between PWVg, LV mass, and diastolic function in postmenopausal women. PATIENTS AND METHOD: We screened 321 consecutive women with echocardiographic examination to determine PWVg. LV diastolic dysfunction (LVDD) and LV hypertrophy (LVH) were diagnosed according to ASE (American Society Echocardiography) Guidelines. RESULTS: The mean age of the 321 women studied was 59.9 years of age with 20 percent of the women menstruate and 80 percent post-menopausal. Amongst the post-menopausal women, 168 patients had LVDD (66.7%), 127 had mild diastolic dysfunction, 40 had moderate diastolic dysfunction, and 1had severe diastolic dysfunction. In these post-menopausal patients with diastolic dysfunction, 89.3% had an increased PWVg while 10.7% had a normal PWVg which was highly statistically significant (p < 0.001). The patients with a normal PWVg all had mild diastolic dysfunction. Increased left atrial volume indexed for body surface area was present in only 19 women, 12 of whom had LVDD and 14 increased PWVg, but statistical analysis was not performed due to the low number of women affected. There was no statistically significant difference in age between postmenopausal women with and without increased PWVg. CONCLUSION: In our population of postmenopausal women, we observed a strong relationship between LVDD and LVH with PWVg. Our study supports the usefulness of assessment of aortic stiffness as a marker of cardiovascular disease.

17.
Eur Cardiol ; 9(2): 100-103, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30310494

RESUMO

Cardiac resynchronisation therapy (CRT) is well accepted therapy for the treatment of symptomatic systolic heart failure in defined patient subgroups. Large clinical trials over the past 20 years have shown that patients with a left ventricular (LV) systolic dysfunction and interventricular conduction delay benefit from this therapy. Recent advances in this field include the expansion indications for CRT to patients with mild heart failure and to those with a mildly depressed ejection fraction that require frequent right ventricular pacing. In addition, although CRT guidelines have included indications in atrial fibrillation, it is now clear that this is most effective when pacing is utilised nearly 100 % of the time, often requiring atrioventricular (AV) junction ablation. Strategies for optimising LV lead placement based on identifying late mechanical contraction or electrical delay are promising for maximising CRT response. Finally, the role of routine AV delay optimisation is no longer recommended based on the results of multicentre trials.

18.
J Pain Palliat Care Pharmacother ; 27(3): 244-54, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23879213

RESUMO

We conducted a prospective, randomized, cross-sectional study to develop and validate a new model to predict oxycodone in urine that can be used to help evaluate whether patients are complying with their oxycodone dosing regimens. We studied 20 patients: eight black women, two white women, six black men, and four white men; ages 48 ± 10 years (mean ± SD); weight 97 ± 32 kg. Pain levels before treatment averaged 9.5 ± 0.9 out of 10. We prescribed oral oxycodone for each patient, tailoring the dosing regimen using clinical pharmacokinetics and measured the oxycodone concentration in each patient's urine 10 to 14 days after starting the dosing regimen. For each patient, we predicted oxycodone in their urine using our model, checked the actual concentration, and compared predicted with actual concentrations. For 18 of 20 patients (90%), actual results fell within ±10% of our model's prediction. One patient was 35% below the prediction; the other was 51% above. Our model accurately predicts oxycodone in urine (±10% for 90% of the patients). The model appears clinically useful for evaluating the results of a quantitative urine test, since it objectively discriminates between (1) a "normal" patient complying with their oxycodone dosing regimen, and (2) a patient who may require genetic testing to distinguish between unusual metabolism or abuse.


Assuntos
Analgésicos Opioides/administração & dosagem , Dor Crônica/tratamento farmacológico , Adesão à Medicação , Modelos Biológicos , Oxicodona/administração & dosagem , Administração Oral , Adulto , Negro ou Afro-Americano , Idoso , Analgésicos Opioides/uso terapêutico , Analgésicos Opioides/urina , Estudos Transversais , Relação Dose-Resposta a Droga , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Oxicodona/uso terapêutico , Oxicodona/urina , Medição da Dor , Estudos Prospectivos , População Branca
19.
ANZ J Surg ; 83(4): 222-9, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-23116065

RESUMO

Data from the Australian Better Safer Transfusion programme show that about one-third of patients undergoing hip or knee arthroplasty receive perioperative blood transfusions, placing them at increased risk for adverse clinical outcomes. Other concerns associated with allogeneic blood transfusion include the quality of stored red cell concentrates, the cost of provision of blood and the predicted local demographics, which mean that fewer donors will need to support a greater number of recipients. In view of the multiple challenges associated with allogeneic blood transfusion and its provision, we developed practical management recommendations for perioperative bleeding in joint replacement surgery, based on available evidence and expert consensus opinion, that aim to promote a new, responsible approach to transfusion management. Key recommendations are as follows. Patients' medical health, including haemoglobin and iron levels, needs to be evaluated and optimized preoperatively. Anticoagulant and antiplatelet therapy should be stopped if possible, unless indicated for secondary cardiovascular prevention or coronary stent patency, in which case careful consideration is required. If substantial blood loss is anticipated, intraoperative management with antifibrinolytic agents is recommended for bleeding prophylaxis. Normothermia should be maintained. Pharmacological and non-pharmacological measures are recommended for post-operative thromboprophylaxis. A blood management programme should be instituted for haemodynamically stable patients.


Assuntos
Artroplastia de Substituição , Perda Sanguínea Cirúrgica/prevenção & controle , Transfusão de Sangue , Análise Química do Sangue , Regulação da Temperatura Corporal , Drenagem , Fármacos Hematológicos/administração & dosagem , Humanos , Hipertensão/prevenção & controle , Posicionamento do Paciente , Trombose/prevenção & controle , Torniquetes
20.
Echocardiography ; 29(9): 1128-31, 2012 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-22931539

RESUMO

Percutaneous closure of secundum atrial defects has become an accepted treatment in part because it is minimally invasive and relatively low risk. Despite recent advances in implantation technique and device improvements, complications occur. Here, we report a case of device embolization during percutaneous repair of an atrial septal defect (ASD) with multiple fenestrations. We highlight the value of using live/real time three-dimensional transesophageal echocardiography to help plan the percutaneous procedure and detect complications.


Assuntos
Ecocardiografia Tridimensional/métodos , Ecocardiografia Transesofagiana/métodos , Embolização Terapêutica/instrumentação , Comunicação Interatrial/diagnóstico por imagem , Comunicação Interatrial/cirurgia , Artéria Ilíaca/cirurgia , Cirurgia Assistida por Computador/métodos , Humanos , Masculino , Dispositivo para Oclusão Septal , Resultado do Tratamento
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