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1.
Lett Appl Microbiol ; 76(3)2023 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-36906280

RESUMEN

Efficacy of cleaning methods against SARS-CoV-2 suspended in either 5% soil load (SARS-soil) or simulated saliva (SARS-SS) was evaluated immediately (hydrated virus, T0) or 2 hours post-contamination (dried virus, T2). Hard water dampened wiping (DW) of surfaces, resulted in 1.77-3.91 log reduction (T0) or 0.93-2.41 log reduction (T2). Incorporating surface pre-wetting by spraying with a detergent solution (D + DW) or hard water (W + DW) just prior to dampened wiping did not unilaterally increase efficacy against infectious SARS-CoV-2, however, the effect was nuanced with respect to surface, viral matrix, and time. Cleaning efficacy on porous surfaces (seat fabric, SF) was low. W + DW on stainless steel (SS) was as effective as D + DW for all conditions except SARS-soil at T2 on SS. DW was the only method that consistently resulted in > 3-log reduction of hydrated (T0) SARS-CoV-2 on SS and ABS plastic. These results suggest that wiping with a hard water dampened wipe can reduce infectious virus on hard non-porous surfaces. Pre-wetting surfaces with surfactants did not significantly increase efficacy for the conditions tested. Surface material, presence or absence of pre-wetting, and time post-contamination affect efficacy of cleaning methods.


Asunto(s)
COVID-19 , Virus , Humanos , SARS-CoV-2 , Desinfección/métodos , Detergentes/farmacología , Tacto , COVID-19/prevención & control , Agua
2.
Rozhl Chir ; 100(10): 490-496, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-35021840

RESUMEN

INTRODUCTION: Peritoneal carcinomatosis (PK) of colorectal origin is a malignant tumour of the peritoneum caused by spreading of colorectal carcinoma (KRK) over the peritoneal surface of the abdominal cavity and its organs. PK occurs as a synchronous tumour in 1520% of patients, and as metachronous disease in 2550% of patients. METHODS: A group of 66 patients operated on for PK was retrospectively evaluated; 18 patients were excluded due to insufficient data. We evaluated 48 patients in total (22 men and 26 women) with mean age of 58 and 53 years, respectively; 12 patients (25%) were aged over 65 years. The patients were operated on between 2000 and 2019 using the Sugarbaker´s method of maximal cytoreduction (CRS) + HIPEC (Hyperthermic Intraoperative Peritoneal Chemotherapy). We evaluated the length, median survival, the incidence of complications and lethality in relation to the Peritoneal Carcinoma Index (PCI) and the Completeness of Cytoreduction (CC) score. The patients were divided into two subgroups according to the PCI score (012 and >12, respectively) and the CC score (CC 01 and CC 23, respectively). RESULTS: The mean survival was 26.3 months in the group with PCI up to 12 and 21.4 months in patients with PCI above 12 (p=0.02). In the group with CC 01 the mean survival was 27.1 months, while in the patients with the CC 23 it reached 12.6 months (p=0.06). The morbidity rate requiring an intervention was 18.7% and the lethality rate was 6.25% in the entire group. The median survival of the entire group was 22 months (1334 months). CONCLUSION: Literary references and our results are comparable, confirming the high efficiency of this method both in our country and worldwide. The use of CRS and HIPEC, associated with acceptable mortality and morbidity in selected patients with PK of colorectal origin, results in a significant extension of overall survival (OS).


Asunto(s)
Neoplasias Colorrectales , Neoplasias Peritoneales , Anciano , Protocolos de Quimioterapia Combinada Antineoplásica , Neoplasias Colorrectales/terapia , Terapia Combinada , Procedimientos Quirúrgicos de Citorreducción , Femenino , Hospitales , Humanos , Masculino , Neoplasias Peritoneales/terapia , Peritoneo , Pronóstico , Estudios Retrospectivos , Tasa de Supervivencia
3.
Rozhl Chir ; 99(4): 159-166, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32545978

RESUMEN

INTRODUCTION: Pseudomyxoma peritonei (PMP) is a rare malignant disease with various grades of malignancy, producing mucinous and gelatinous masses. The origin of PMP is usually connected with the rupture of appendiceal mucinous tumours, other mucinous tumours of the gastrointestinal tract or of the ovary. The staging of this disease is determined by the PCI score (peritoneal cancer index), and the efficiency of surgical procedure by the CC score. Clinical presentation is very variable and depends on the stage of the disease. Many patients are asymptomatic with a minimal clinical finding, presented only with abdominal discomfort. A typical finding of the “jelly belly“ syndrome expands with progression of the disease. The diagnosis consists in preoperative determination of the tumour characteristics and PCI based on imaging methods, especially CT imaging. METHODS: The Sugarbaker technique of complete tumour removal or the so-called cytoreductive surgery (CRS) was used, including hyperthermic intraperitoneal chemotherapy (HIPEC) or alternatively early postoperative intraperitoneal chemotherapy (EPIC). We performed retrospective evalu-ation of 73 patients with pseudomyxoma peritonei undergoing surgery, 39 males and 34 females, mean age 50.6 and 56.4 years, respectively. Surgical revision was performed in 18 patients, 14 males and 4 females. The mean age of this group was 48.8 for the males and 47 for the females. The surgical procedures were performed between 1999 and 2018. Survival rates, median survival, complications based on Clavien-Dindo classification, lethality rates, and PCI and CC scores were assessed in the patient group. RESULTS: 96 surgeries were performed in 73 patients with pseudomyxoma peritonei at our surgical department between 19992018. The surgery had to be repeated in 18 patients (24.6%). High grade (HG) pseudomyxoma was diagnosed in 29 patients (39.7%), and low grade (LG) pseudomyxoma in 44 patients (60.3%). Overall morbidity was 27.3%, and the mortality rate was 5.4%. The mean overall survival (OS) was 139.5 months in the LG pseudomyxoma group and 71.5 months in the HG pseudomyxoma group. Median survival was 86 months in the entire group and 72 in the HG pseudomyxoma group; the median was not reached in the LG pseudomyxoma group. CONCLUSIONS: Results in the literature and our results are comparable, confirming the high efficiency of this method both in the world and in the Czech republic. The results indicate a highly statistically significant improvement of the OS with acceptable mortality and morbidity. These results confirm this method as a gold standard therapy for selected patients.


Asunto(s)
Intervención Coronaria Percutánea , Neoplasias Peritoneales/cirugía , Seudomixoma Peritoneal , Terapia Combinada , República Checa , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos
4.
Unfallchirurg ; 123(5): 342-347, 2020 May.
Artículo en Alemán | MEDLINE | ID: mdl-32322921

RESUMEN

The routine use of patient reported outcome measurements (PROMs) can support the orientation of healthcare systems towards the value and usefulness for patients. The collation of patient reported experience measurements (PREMs) is suitable for bringing transparency to the patient orientation of healthcare processes and the experience gained. Both PREM and PROM will become an integral component of the assessment of medical quality in Germany when the guidelines for data-supported quality assurance across institutions (DeQS-RL) come into force. By means of newly developed patient surveys per medical service area, they will be used as additional sources for the legally binding quality assurance. Although this gives more weight to the evaluation of the quality of treatment by patients, special features must be taken into account in the development and implementation for orthopedics and trauma surgery in order to avoid misinterpretation of the results and subsequent misguidance in the healthcare system.


Asunto(s)
Procedimientos Ortopédicos , Ortopedia , Heridas y Lesiones/cirugía , Alemania , Humanos , Medición de Resultados Informados por el Paciente , Garantía de la Calidad de Atención de Salud , Encuestas y Cuestionarios
5.
Obes Res Clin Pract ; 13(5): 435-439, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31551167

RESUMEN

Media exposes children to weight biased messaging by presenting overweight characters negatively. Although bias against human figures and human characters has been examined, children's bias against non-human animated characters is unstudied. Children's (N=60; 4-6 years old) weight bias against human and non-human characters was measured. Children saw characters of different weights (thin, overweight), genders (girl, boy), and stimuli type (human-line drawing, human-photo, non-human cartoon), and rated them using positive and negative characteristics. ANOVAs and t-tests examined weight bias based on mean ratings of each character. Overweight figures were rated more negatively than non-overweight figures overall, regardless of gender or type of stimulus. Further, mean ratings of the non-human cartoon were significantly less positive than ratings of both the line drawings and photographs of human figures. However, there was no interaction of stimulus type and weight status, suggesting that bias is expressed equally against human and non-human overweight figures. Results indicated that children's negative weight bias extends to non-human cartoon figures. Implications for children's media are discussed.


Asunto(s)
Sesgo , Peso Corporal , Dibujos Animados como Asunto , Cuerpo Humano , Niño , Preescolar , Medios de Comunicación , Femenino , Humanos , Masculino , Sobrepeso
6.
Int J STD AIDS ; 27(13): 1180-1186, 2016 11.
Artículo en Inglés | MEDLINE | ID: mdl-26446138

RESUMEN

There is a lack of research on health care providers' use of and perspectives on expedited partner therapy in a state where expedited partner therapy is not prohibited or explicitly allowed. The aim of our study was to understand if and how health care providers use expedited partner therapy, if specific demographic factors and knowledge contribute to increased use of expedited partner therapy, and to describe barriers and facilitators to the use of expedited partner therapy in Pittsburgh, Pennsylvania. A convenience sample of 112 health care providers from diverse disciplines who treat young women at risk for chlamydia completed an online survey. About 11% of health care providers used expedited partner therapy consistently. Those who self-reported that they were knowledgeable about expedited partner therapy were more likely to use expedited partner therapy (73% vs. 49%, p = .009) as were those who said no or were unsure about their institution's guidelines for expedited partner therapy (35% vs. 22%, p = 0.01) (62% vs. 57%, p = 0.01). The most commonly reported facilitator of expedited partner therapy was having clear legal guidelines (86%). This study finds that in a setting where expedited partner therapy is not expressly permitted, health care providers still use the practice but also experience barriers that limit uptake. Legislation expressly endorsing expedited partner therapy in the state and in medical institutions is needed to increase expedited partner therapy use.


Asunto(s)
Infecciones por Chlamydia/prevención & control , Chlamydia trachomatis/aislamiento & purificación , Trazado de Contacto , Conocimientos, Actitudes y Práctica en Salud , Personal de Salud/psicología , Parejas Sexuales , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Philadelphia/epidemiología
7.
Rozhl Chir ; 93(4): 223-5, 2014 Apr.
Artículo en Checo | MEDLINE | ID: mdl-24881480

RESUMEN

The most common and serious complications of haemorrhoids include perianal thrombosis and incarcerated prolapsed internal haemorrhoids with subsequent thrombosis. They are characterised by severe pain in the perianal region possibly with bleeding. In a short history of the perianal thrombosis, acute surgical incision or excision is indicated, which can result in rapid relief of the painful symptoms. In incarcerated prolapsed internal haemorrhoids, emergency haemorrhoidectomy may also be indicated. Segmental haemorrhoidectomy in the most affected quadrants followed by further elective surgery for haemorrhoids in the next stage is preferred.


Asunto(s)
Hemorreoidectomía , Hemorroides/complicaciones , Hemorroides/cirugía , Procedimientos Quirúrgicos Electivos , Urgencias Médicas , Humanos , Prolapso Rectal/etiología , Prolapso Rectal/cirugía , Trombosis/etiología , Trombosis/cirugía
8.
Rozhl Chir ; 93(4): 226-31, 2014 Apr.
Artículo en Checo | MEDLINE | ID: mdl-24881481

RESUMEN

Periproctal inflammations related to the anus are characterized by the rapid spread of the infection to the surrounding tissue, which is determined by the anatomical characteristics and infectious agents. Inflammation, which starts as a phlegmon, quickly forms boundaries and an abscess develops in most cases. Up to 80-90% of anorectal abscesses develop according to the crypto-glandular theory on the basis of infection of the anal glands, spilling into the Morgagni crypts in the anal canal. Up to two-thirds of such abscesses are associated with the emergence of anorectal fistulas. Anorectal abscesses can be divided into marginal and subcutaneous perianal abscesses, submucosal, intersphincteric, ischiorectal and supralevator abscesses. Their diagnosis is based on thorough physical examination, sometimes also with the help of imaging methods such as computed tomography, magnetic resonance imaging and endoanal ultrasound. What is decisive for the successful treatment of anorectal abscessess is their early and adequate surgical drainage. Adjuvant antibiotic therapy is necessary only when the overall signs of sepsis are present and for patients with a comorbidity such as diabetes, valvular heart disease, or immunodeficiency.


Asunto(s)
Absceso/diagnóstico , Absceso/cirugía , Enfermedades del Ano/diagnóstico , Enfermedades del Ano/cirugía , Absceso/clasificación , Canal Anal/cirugía , Antibacterianos , Enfermedades del Ano/clasificación , Drenaje , Humanos , Fístula Rectal/clasificación , Fístula Rectal/diagnóstico , Fístula Rectal/cirugía , Tomografía Computarizada por Rayos X
9.
Rozhl Chir ; 93(4): 232-5, 2014 Apr.
Artículo en Checo | MEDLINE | ID: mdl-24881482

RESUMEN

Anal and rectal traumas are relatively rare (with the exception of iatrogenic damage) due to the anatomical position of the anorectum. The anal canal is injured more frequently due to its relatively superficial position, but injuries involving the extraperitoneal rectum, although more rare, tend to be much more severe and may affect the surrounding organs. Intraperitoneal rectal injury is associated with bleeding or perforation and may lead to peritonitis and diffuse contamination of the abdominal cavity. The decisive factor is the early detection of the injury and early initiation of treatment. The first step in surgical treatment of severe anorectal injury is the control of massive bleeding and volume resuscitation. The aim of the surgery is to preserve life, control infections and to preserve the patients anal continence and evacuation function. Key words: anorectal trauma - aetiology - surgical treatment.


Asunto(s)
Canal Anal/lesiones , Canal Anal/cirugía , Recto/lesiones , Recto/cirugía , Diagnóstico Precoz , Intervención Médica Temprana , Femenino , Hemoperitoneo/etiología , Hemoperitoneo/cirugía , Hemorragia , Humanos , Masculino , Peritonitis/etiología , Peritonitis/cirugía , Pronóstico
10.
Pathologe ; 34 Suppl 2: 201-9, 2013 Nov.
Artículo en Alemán | MEDLINE | ID: mdl-24196613

RESUMEN

BACKGROUND: Besides essential thrombocythemia (ET), polycythemia vera (PV) and primary myelofibrosis (PMF) the myeloproliferative neoplasms (MPN) defined by the World Health Organization (WHO) comprise the entity of unclassifiable MPNs (MPN, U). The exact differential diagnosis of the specific MPN entities can be challenging particularly at early stages of the diseases. So far, pathologists have had to rely only on histomorphological evaluation of bone marrow biopsies in combination with laboratory data because helpful ancillary tests are not yet available. Even molecular tests, such as JAK2 mutation analysis are not helpful particularly in the differential diagnosis of ET and PMF because both entities are associated with the V617F mutation in 50 % of the cases. Recently overexpression of the transcription factor NF-E2 in MPN was described. MATERIALS AND METHODS: A collective of samples consisting of 163 bone marrow biopsies including 139 MPN cases was stained immunohistochemically for NF-E2 and analyzed regarding the subcellular localization of NF-E2 in erythroid progenitor cells. The results were compared between the MPN entities as well as the controls and statistical analyses were conducted. RESULTS AND DISCUSSION: This study showed that NF-E2 immunohistochemistry and analysis of the proportion of nuclear positive erythroblasts of all erythroid precursor cells can help to distinguish between ET and PMF even in early stages of the diseases. An MPN, U case showing a proportion of more than 20 % nuclear positive erythroblasts can be classified as a PMF with 92 % accuracy.


Asunto(s)
Distinciones y Premios , Médula Ósea/patología , Subunidad p45 del Factor de Transcripción NF-E2/análisis , Subunidad p45 del Factor de Transcripción NF-E2/genética , Mielofibrosis Primaria/genética , Mielofibrosis Primaria/patología , Trombocitemia Esencial/genética , Trombocitemia Esencial/patología , Alelos , Biopsia , Análisis Mutacional de ADN , Diagnóstico Diferencial , Células Precursoras Eritroides/patología , Eritropoyesis/genética , Regulación Neoplásica de la Expresión Génica/genética , Humanos , Recuento de Leucocitos , Megacariocitos/patología , Recuento de Plaquetas , Policitemia Vera/genética , Policitemia Vera/patología , Valores de Referencia , Trombocitosis/genética , Trombocitosis/patología
11.
Resuscitation ; 84(1): 60-5, 2013 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-22743354

RESUMEN

AIMS: Gut dysfunction is suspected to play a major role in the pathophysiology of post-resuscitation disease through an increase in intestinal permeability and endotoxin release. However this dysfunction often remains occult and is poorly investigated. The aim of this pilot study was to explore intestinal failure biomarkers in post-cardiac arrest patients and to correlate them with endotoxemia. METHODS: Following resuscitation after cardiac arrest, 21 patients were prospectively studied. Urinary intestinal fatty acid-binding protein (IFABP), which marks intestinal permeability, plasma citrulline, which reflects the functional enterocyte mass, and whole blood endotoxin were measured at admission, days 1-3 and 6. We explored the kinetics of release and the relationship between IFABP, citrulline and endotoxin values. RESULTS: IFABP was extremely high at admission and normalized at D3 (6668 pg/mL vs 39 pg/mL, p=0.01). Lowest median of citrulline (N=20-40 µmol/L) was attained at D2 (11 µmol/L at D2 vs 24 µmol/L at admission, p=0.01) and tended to normalize at D6 (21 µmol/L). During ICU stay, 86% of patients presented a detectable endotoxemia. Highest endotoxin level was positively correlated with highest IFABP level (R(2)=0.31, p=0.01) and was inversely correlated with lowest plasma citrulline levels (R(2)=0.55, p<0.001). Endotoxin levels increased between admission and D2 in patients with post-resuscitation shock, whereas it decreases in patients with no shock (median +0.33 EU vs -0.19 EU, p=0.03). Highest endotoxin level was positively correlated with D3 SOFA score (R(2)=0.45, p=0.004). CONCLUSION: Biomarkers of intestinal injury are altered after cardiac arrest and are associated with endotoxemia. This could worsen post-resuscitation shock and organ failure.


Asunto(s)
Biomarcadores/metabolismo , Intestinos/fisiopatología , Paro Cardíaco Extrahospitalario/metabolismo , Paro Cardíaco Extrahospitalario/terapia , Reanimación Cardiopulmonar , Cromatografía Líquida de Alta Presión , Citrulina/sangre , Endotoxemia/sangre , Endotoxemia/fisiopatología , Endotoxinas/sangre , Ensayo de Inmunoadsorción Enzimática , Proteínas de Unión a Ácidos Grasos/orina , Femenino , Humanos , Mucosa Intestinal/metabolismo , Luminiscencia , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Estadísticas no Paramétricas
12.
Med Phys ; 39(7): 4167-74, 2012 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-22830750

RESUMEN

PURPOSE: To correlate the Cole relaxation frequencies obtained from measurements of the electrical properties of breast tissue to the presence or absence of cancer. METHODS: Four-lead impedance measurements were obtained on ex vivo specimens extracted during surgery from 187 volunteer patients. Data were acquired with a commercial Solartron impedance bridge employing 4-lead Ag-AgCl or blackened platinum (BPt) electrodes at frequencies logarithmically spaced from 1 Hz to 3.2 × 10(7) Hz utilizing 6-10 frequencies per decade. The Cole frequencies obtained from these measurements were correlated with the tissue health status (cancer or noncancer) obtained from histological analysis of the specimens. RESULTS: Analysis of the impedance measurements showed that the Cole relaxation frequencies correlated to the presence or absence of cancer in the examined tissue with a sensitivity up to 100% (95% CI, 99%-100%) and a specificity up to 85% (95% CI, 79%-91%) based on the ROC curve of the data with the Cole frequency as the classifier. CONCLUSIONS: The results show that the Cole frequency alone is a viable classifier for malignant breast anomalies. Results of the current work are consistent with recent bioimpedance measurements on single cell and cell suspension breast cell lines.


Asunto(s)
Algoritmos , Neoplasias de la Mama/diagnóstico , Neoplasias de la Mama/fisiopatología , Diagnóstico por Computador/métodos , Pletismografía de Impedancia/métodos , Femenino , Humanos , Técnicas In Vitro , Reproducibilidad de los Resultados , Sensibilidad y Especificidad
13.
Eye (Lond) ; 25(12): 1535-45, 2011 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-22094300

RESUMEN

PURPOSE: To analyze Humphrey visual field (HVF) findings in hydroxychloroquine (HCQ) retinal toxicity. METHODS: HVF tests were interpreted retrospectively in this observational case series of 15 patients with HCQ toxicity. Patients seen at Lahey Clinic were identified by diagnosis coding search. Patients with age-related macular degeneration or glaucoma with visual field loss were excluded. HVFs done before the diagnosis were analyzed to see if earlier diagnosis could have been possible. RESULTS: A total of 66 HVFs were reviewed and categorized. Some abnormalities were subtle. Paracentral defects were seen on 10-2 tests whereas 24-2 tests, due to their compressed scale, showed central changes. The abnormalities were often more obvious on pattern deviation rather than the gray scale. Of those patients with prior HVFs available for review, 50% showed HVF abnormalities typical of HCQ toxicity present several months or years before diagnosis. HVF changes preceded fundus changes in nine patients. CONCLUSION: HVF abnormalities indicating HCQ toxicity vary depending on the specific HVF test performed. Clinicians need to be aware of the subtle nature of HVF changes in early toxicity.


Asunto(s)
Antimaláricos/efectos adversos , Hidroxicloroquina/efectos adversos , Enfermedades de la Retina/inducido químicamente , Enfermedades de la Retina/fisiopatología , Campos Visuales/efectos de los fármacos , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Enfermedades de la Retina/diagnóstico , Estudios Retrospectivos , Pruebas del Campo Visual/métodos , Campos Visuales/fisiología
14.
Rozhl Chir ; 90(7): 402-7, 2011 Jul.
Artículo en Checo | MEDLINE | ID: mdl-22026092

RESUMEN

INTRODUCTION: Surgical site infections (SSI) are currently one of the most frequent postoperative complications. Emergent surgery is generally subject to a higher risk of SSI. Antibiotic prophylaxis is one of many measures that should be taken to prevent postoperative infection. However, due to possible adverse effects it must be applied only in indicated cases. Many guidelines have been published abroad, but still missing in Czech Republic. Standard use of prophylaxis can be currently followed due to compliance with SCIP (Surgical Care Improvement Project) measurements and reflects the quality of surgical care. OBJECTIVES: The aim of our study was to evaluate the current clinical praxis of prophylactic antibiotic administration in Czech Republic in emergent surgery for diagnosis: acute appendicitis, small bowel obstruction and perforated gastroduodenal ulcer and evaluate the SCIP criteria adherence. METHOD: The survey was sent to 149 surgical departments. The questionnaire included 7 questions and feedback was considered to be anonymous. The compliance with 3 main SCIP measurements (INF-1, INF-2, INF-3) was evaluated by the patients with acute appendicitis as a indication for emergent surgery. RESULTS: Overall, 85 (57%) completed questionnaires were received back. According to a survey results, antibiotic prophylaxis is always administered in 15% of patients operated for acute appendicitis, 27% operated for small bowel obstruction and 47% of patients with gastroduodenal perforation. No prophylaxis is given in 11 (13%) hospitals for either of the mentioned diagnoses. Antibiotics are mostly (46%) administered at induction of general anesthesia and extended to 24 hours. The SCIP measurements adherence was as follows: INF-1--4.7%; INF-2--86%; INF-3--81% of evaluated departments. All of 3 (all-or-none) criteria were fulfilled only at 3 (3.5%) surgical departments. CONCLUSION: The clinical praxis of antibiotic prophylaxis in urgent surgical procedures in Czech Republic is highly variable and mostly ignores the current international guidelines (SCIP). There is a need of local specific guideline concerning antibiotic prophylaxis guaranteed by scientific company.


Asunto(s)
Profilaxis Antibiótica/estadística & datos numéricos , Infección de la Herida Quirúrgica/prevención & control , República Checa , Recolección de Datos , Adhesión a Directriz , Humanos
15.
Cardiovasc J Afr ; 22(5): 234-40, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-21922121

RESUMEN

AIM: The aim of the CEntralised Pan-South African survey on tHE Under-treatment of hypercholeSterolaemia (CEPHEUS SA) was to evaluate the current use and efficacy of lipidlowering drugs (LLDs), and to identify possible patient and physician characteristics associated with failure, if any, to achieve low-density lipoprotein cholesterol (LDL-C) targets. METHODS: The survey was conducted in 69 study centres in South Africa and recruited consecutive consenting patients who had been prescribed LLDs for at least three months. One visit was scheduled for data collection, including fasting plasma lipid and glucose levels. Physicians and patients completed questionnaires regarding their knowledge, awareness and perceptions of hypercholesterolaemia and the treatment thereof. RESULTS: Of the 3 001 patients recruited, 2 996 were included in the final analyses. The mean age was 59.4 years, and 47.5% were female. Only 60.5 and 52.3% of patients on LLDs for at least three months achieved the LDL-C target recommended by the NCEP ATP III/2004 updated NCEP ATP III and the Fourth JETF/South African guidelines, respectively. Being male, older than 40 years, falling into the lower-risk categories, compliance with the medication regimen, and patient knowledge that the LDL-C goal had been reached, were associated with the highest probability of attaining LDL-C goals. CONCLUSION: The results of this survey highlight the sub-optimal lipid control achieved in many South African patients taking lipid-lowering therapy.


Asunto(s)
Anticolesterolemiantes/uso terapéutico , Conocimientos, Actitudes y Práctica en Salud , Hipercolesterolemia/tratamiento farmacológico , Pautas de la Práctica en Medicina , Anciano , Actitud del Personal de Salud , Concienciación , Biomarcadores/sangre , LDL-Colesterol/sangre , Utilización de Medicamentos , Femenino , Adhesión a Directriz , Encuestas de Atención de la Salud , Humanos , Hipercolesterolemia/sangre , Hipercolesterolemia/epidemiología , Modelos Logísticos , Masculino , Cumplimiento de la Medicación , Persona de Mediana Edad , Oportunidad Relativa , Educación del Paciente como Asunto , Percepción , Guías de Práctica Clínica como Asunto , Pautas de la Práctica en Medicina/estadística & datos numéricos , Sudáfrica/epidemiología , Encuestas y Cuestionarios , Factores de Tiempo , Resultado del Tratamiento
16.
Acta Physiol (Oxf) ; 202(4): 671-81, 2011 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-21554558

RESUMEN

AIM: The predictions of scaling of skeletal muscle shortening velocity made by A.V. Hill 60-years ago have proven to be remarkably accurate at the cellular level. The current investigation looks to extend the study of scaling of contractile speed to the level of the molecular motor protein myosin at both physiological and unphysiological low temperatures. METHODS: A single muscle cell in vitro motility assay to test myosin function, i.e. myosin extracted from short single muscle fibre segments, was used in four species representing a 5 500-fold difference in body mass (rat, man, horse and rhinoceros) at temperatures ranging from 15 to 35 °C. RESULTS: The in vitro motility speed increased as the temperature of the assay increased, but a more profound effect was observed on the slower isoforms, narrowing the relative differences between fast and slow myosin heavy chain (MyHC) isoforms at physiological temperature in all species. The in vitro motility speed varied according to MyHC isoform within each species: I < IIa < IIx < IIb, but the expected scaling relationship within orthologous myosin isoforms was not observed at any temperature. CONCLUSION: The scaling effect of body size and limb length on shortening velocity at the muscle fibre level, i.e. the decreasing shortening velocity associated with increasing body weight and limb length, was not confirmed at the motor protein level when including mammals of very large size. Thus, other factors than myosin structure and function appear to cause this scaling effect and thin filament isoform expression or myofilament lattice spacing are forwarded as alternative underlying factors.


Asunto(s)
Tamaño Corporal/fisiología , Contracción Muscular/fisiología , Músculo Esquelético/fisiología , Miosinas del Músculo Esquelético/fisiología , Animales , Humanos , Masculino , Fibras Musculares Esqueléticas/fisiología , Perisodáctilos , Isoformas de Proteínas , Ratas , Valores de Referencia , Especificidad de la Especie , Factores de Tiempo
18.
Cardiovasc J Afr ; 20(6): 357-9, 2009.
Artículo en Inglés | MEDLINE | ID: mdl-20024478

RESUMEN

We present a case in which a 39-year-old man was assaulted in 2002 and sustained penetrating chest trauma. He was treated conservatively, and presented six years later with exertional dyspnoea and a continuous murmur. Echocardiography detected an aorta-right ventricular fistula and an important aortic regurgitation. The aorta-right ventricular fistula was repaired and the aortic valve was replaced with a mechanical prosthesis. Traumatic aorto-right ventricular fistulas and aortic regurgitation are often masked by the primary injury and may take months or years to become clinically evident.


Asunto(s)
Aorta/patología , Insuficiencia de la Válvula Aórtica/etiología , Ventrículos Cardíacos/patología , Traumatismos Torácicos/complicaciones , Fístula Vascular/etiología , Heridas Penetrantes/complicaciones , Adulto , Válvula Aórtica/patología , Válvula Aórtica/cirugía , Insuficiencia de la Válvula Aórtica/diagnóstico , Insuficiencia de la Válvula Aórtica/cirugía , Implantación de Prótesis de Válvulas Cardíacas , Humanos , Masculino , Traumatismos Torácicos/cirugía , Fístula Vascular/cirugía , Heridas Penetrantes/cirugía
19.
J Clin Microbiol ; 47(12): 3933-6, 2009 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-19828738

RESUMEN

Rapid laboratory methods provide optimal support for active surveillance efforts to screen for methicillin-resistant Staphylococcus aureus (MRSA). Most laboratories struggle to determine the optimal use of resources, considering options to balance cost, speed, and diagnostic accuracy. To assess the performance of common methods, the first comparison of MRSASelect agar (MS) and CHROMagar MRSA (CA), with and without broth enrichment followed by a 24-h subculture to MS, was performed. Results were compared to those of the Xpert MRSA assay. For direct culture methods, the agreement between MS and CA was 98.8%. At 18 h, direct MS identified 93% of all positive samples from direct culture and 84% of those identified by the Xpert MRSA. For Trypticase soy broth-enriched MS culture, incubated overnight and then subcultured for an additional 24 h, the agreement with Xpert MRSA was 96%. The agreement between direct MS and Xpert MRSA was 100% when semiquantitative culture revealed a bacterial density of 2+ or greater; however, discrepancies between culture and Xpert MRSA arose for MRSA bacterial densities of 1+ or less, indicating low density as a common cause of false-negative culture results. Since 1+ or less was established as the most common MRSA carrier state, broth enrichment or PCR may be critical for the identification of all MRSA carriers who may be reservoirs for transmission. In this active-surveillance convenience sample, the use of broth enrichment followed by subculture to MS offered a low-cost but sensitive method for MRSA screening, with performance similar to that of Xpert MRSA PCR.


Asunto(s)
Agar , Compuestos Cromogénicos/metabolismo , Medios de Cultivo , Staphylococcus aureus Resistente a Meticilina , Cavidad Nasal/microbiología , Reacción en Cadena de la Polimerasa/métodos , Vigilancia de la Población/métodos , Infecciones Estafilocócicas/diagnóstico , Arizona/epidemiología , Técnicas de Tipificación Bacteriana , Técnicas Bacteriológicas , Humanos , Staphylococcus aureus Resistente a Meticilina/efectos de los fármacos , Staphylococcus aureus Resistente a Meticilina/genética , Staphylococcus aureus Resistente a Meticilina/crecimiento & desarrollo , Staphylococcus aureus Resistente a Meticilina/aislamiento & purificación , Prevalencia , Reproducibilidad de los Resultados , Sensibilidad y Especificidad , Infecciones Estafilocócicas/microbiología
20.
Eur J Neurol ; 16(5): 612-8, 2009 May.
Artículo en Inglés | MEDLINE | ID: mdl-19220447

RESUMEN

BACKGROUND AND PURPOSE: Stroke risk factor knowledge and individual risk perception are low in the general public. Our study aimed at identifying the educational effects of a multimedia campaign on stroke knowledge and risk perception in several subgroups at increased risk of stroke. METHODS: Telephone surveys were administered in a random sample of 500 members of the general public, before and immediately after an intense 3 months educational campaign using various mass and print media. RESULTS: A total of 32.7% of respondents considered themselves as being at risk of stroke before, and 41.9% (P < 0.01) after the intervention. Evaluation of stroke risk increased with number of appreciated individual stroke risk factors. Knowledge of different stroke risks varied considerably and proved to be especially high in obese individuals (98.7%) and smokers (97.9%) and particularly low in patients with coronary heart disease (80.6%). CONCLUSIONS: Our data indicate that educational programs and the introduction of stroke risk factors can increase stroke risk perception in the public. Even though some risk groups (smokers, obese) reveal a ceiling effect, future campaigns should focus on high risk populations remarkably underrating their risk, like those with coronary heart disease or the elderly.


Asunto(s)
Conocimientos, Actitudes y Práctica en Salud , Multimedia , Educación del Paciente como Asunto , Accidente Cerebrovascular/prevención & control , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Factores de Riesgo
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