Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 374
Filtrar
Más filtros

Banco de datos
Tipo del documento
Intervalo de año de publicación
1.
Clin Radiol ; 78(5): e425-e432, 2023 05.
Artículo en Inglés | MEDLINE | ID: mdl-36849278

RESUMEN

AIM: To evaluate the Prostate Imaging Reporting and Data System, version 2.1 (PIRADS V2.1) criteria for seminal vesicle invasion (SVI) and examine whether the timing of last ejaculation influences the detection of SVI. MATERIALS AND METHODS: The study population consisted of 68 patients (34 with SVI, 34 without SVI, matching groups by age and prostate volume) who underwent PIRADS V2.1-compliant multiparametric magnetic resonance imaging (MRI; 34 at 1.5 T, 34 at 3 T). Before the examination, the time of last ejaculation (38/68 ≤ 5 days, 30/68 > 5 days) was collected via a questionnaire. The five PIRADS V2.1 criteria for SVI with subsequent overall assessment were evaluated retrospectively by two independent examiners (examiner 1 with >10 years of experience, examiner 2 with 6 months of experience) in a single-blinded fashion for all patients using a questionnaire and a six-point scale (0 = no, 1 = very likely not, 2 = probably not, 3 = possible, 4 = probable, 5 = certain). RESULTS: E1 achieved high specificity (100%) and positive predictive value (PPV; 100%) in the overall assessment, independent of the time of last ejaculation (sensitivity = 76.5%, negative predictive value [NPV] = 81%). The area under the curve (AUC) value was 0.882; for E2, it was 0.765. At ≤5 days, the AUC values of E1 and E2 differed significantly (0.867 versus 0.681, p=0.016), as did the diffusion restriction criterion (0.833 versus 0.681, p=0.028). E1 showed high AUC values independent of time. E2 had better values for all criteria at >5 days than at ≤5 days. There were no significant differences between the examiners in all observations at >5 days. CONCLUSION: The PIRADS V2.1 criteria are well suited for an experienced examiner to detect SVI independent of time point. An inexperienced examiner will benefit from patients being abstinent >5 days prior to MRI.


Asunto(s)
Próstata , Neoplasias de la Próstata , Masculino , Humanos , Próstata/diagnóstico por imagen , Próstata/patología , Vesículas Seminales/diagnóstico por imagen , Estudios Retrospectivos , Eyaculación , Neoplasias de la Próstata/patología , Invasividad Neoplásica/patología , Imagen por Resonancia Magnética/métodos , Estadificación de Neoplasias
2.
Br J Surg ; 108(11): 1323-1331, 2021 11 11.
Artículo en Inglés | MEDLINE | ID: mdl-34611694

RESUMEN

BACKGROUND: Transarterial chemoembolization (TACE) in patients with hepatocellular cancer (HCC) on the waiting list for liver transplantation may be associated with an increased risk for hepatic artery complications. The present study aims to assess the risk for, primarily, intraoperative technical hepatic artery problems and, secondarily, postoperative hepatic artery complications encountered in patients who received TACE before liver transplantation. METHODS: Available data from HCC liver transplantation recipients across six European centres from January 2007 to December 2018 were analysed in a 1 : 1 propensity score-matched cohort (TACE versus no TACE). Incidences of intraoperative hepatic artery interventions and postoperative hepatic artery complications were compared. RESULTS: Data on postoperative hepatic artery complications were available in all 876 patients (425 patients with TACE and 451 patients without TACE). Fifty-eight (6.6 per cent) patients experienced postoperative hepatic artery complications. In total 253 patients who had undergone TACE could be matched to controls. In the matched cohort TACE was not associated with a composite of hepatic artery complications (OR 1.73, 95 per cent c.i. 0.82 to 3.63, P = 0.149). Data on intraoperative hepatic artery interventions were available in 825 patients (422 patients with TACE and 403 without TACE). Intraoperative hepatic artery interventions were necessary in 69 (8.4 per cent) patients. In the matched cohort TACE was not associated with an increased incidence of intraoperative hepatic artery interventions (OR 0.94, 95 per cent c.i. 0.49 to 1.83, P = 0.870). CONCLUSION: In otherwise matched patients with HCC intended for liver transplantation, TACE treatment before transplantation was not associated with higher risk of technical vascular issues or hepatic artery complications.


Lay Summary Patients with liver cancer may be treated with transarterial chemoembolization (TACE) during the period on the transplant waiting list. With TACE, chemotherapeutic coils are injected directly into the small arteries supplying the tumour, after which these vessels are closed. The aim of this therapy is to decrease the tumour size and slow down tumour growth. However, concerns are raised that manipulation of the main hepatic artery by TACE may cause damage to the artery itself. If this would result in problems during or after liver transplantation when the artery is connected to the artery supplying the donor liver, this may endanger the donor liver graft survival. The present study shows no increased risk in problems to connect the artery during liver transplantation after TACE treatment. Also, arterial complications after liver transplantation did not occur more frequently if patients had received TACE treatment. The authors therefore conclude that TACE treatment before liver transplantation could be considered a safe approach.


Asunto(s)
Carcinoma Hepatocelular/terapia , Quimioembolización Terapéutica/métodos , Neoplasias Hepáticas/terapia , Trasplante de Hígado/efectos adversos , Complicaciones Posoperatorias/etiología , Cuidados Preoperatorios/métodos , Enfermedades Vasculares/etiología , Europa (Continente)/epidemiología , Femenino , Arteria Hepática , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Complicaciones Posoperatorias/epidemiología , Puntaje de Propensión , Factores de Riesgo , Tasa de Supervivencia/tendencias , Enfermedades Vasculares/epidemiología , Listas de Espera
3.
Respir Res ; 22(1): 156, 2021 May 21.
Artículo en Inglés | MEDLINE | ID: mdl-34020646

RESUMEN

BACKGROUND: Although cardiac autonomic modulation has been studied in several respiratory diseases, the evidence is limited on lung transplantation, particularly on its acute and chronic effects. Thus, we aimed to evaluate cardiac autonomic modulation before and after bilateral lung transplantation (BLT) through a prospective study on patients enrolled while awaiting transplant. METHODS: Twenty-two patients on the waiting list for lung transplantation (11 women, age 33 [24-51] years) were enrolled in a prospective study at Ospedale Maggiore Policlinico Hospital in Milan, Italy. To evaluate cardiac autonomic modulation, ten minutes ECG and respiration were recorded at different time points before (T0) and 15 days (T1) and 6 months (T2) after bilateral lung transplantation. As to the analysis of cardiac autonomic modulation, heart rate variability (HRV) was assessed using spectral and symbolic analysis. Entropy-derived measures were used to evaluate complexity of cardiac autonomic modulation. Comparisons of autonomic indices at different time points were performed. RESULTS: BLT reduced HRV total power, HRV complexity and vagal modulation, while it increased sympathetic modulation in the acute phase (T1) compared to baseline (T0). The HRV alterations remained stable after 6 months (T2). CONCLUSION: BLT reduced global variability and complexity of cardiac autonomic modulation in acute phases, and these alterations remain stable after 6 months from surgery. After BLT, a sympathetic predominance and a vagal withdrawal could be a characteristic autonomic pattern in this population.


Asunto(s)
Sistema Nervioso Autónomo/fisiopatología , Frecuencia Cardíaca , Corazón/inervación , Enfermedades Pulmonares/cirugía , Trasplante de Pulmón , Pulmón/cirugía , Respiración , Adulto , Electrocardiografía , Femenino , Humanos , Pulmón/fisiopatología , Enfermedades Pulmonares/diagnóstico , Enfermedades Pulmonares/fisiopatología , Trasplante de Pulmón/efectos adversos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Factores de Tiempo , Resultado del Tratamiento , Adulto Joven
4.
J Biol Regul Homeost Agents ; 35(3): 847-863, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34155874

RESUMEN

Respiratory infections (RI) significantly burden patients, their families, and society. Respiratory infection recurrence (RRI) usually depends on a defect of the immune response, which can be more or less transient and/or selective. In particular, children, older people, heavy smokers, and patients with chronic diseases, characterized by an inadequate immune response, may be at risk of developing RRI. In this context, OM- 85 could represent a valuable option in the management of RRI. OM-85 is a bacterial lysate containing the extracts of some common pathogens, including Branhamella catarrhalis, Klebsiella pneumoniae, Klebsiella ozaenae, Streptococcus pneumoniae, Streptococcus pyogenes, Streptococcus viridans, and Staphylococcus aureus. Methodologically rigorous studies have documented the mechanism of action, efficacy, and safety of OM-85. OM-85 enhances the natural and acquired immune response through multifaceted mechanisms. Substantial evidence has shown that OM-85 can prevent respiratory infections, reduce the number of COPD exacerbations, and shorten the disease duration at home or in hospital. OM-85 can enhance the effectiveness of the 'flu vaccination without affecting the vaccine tolerability. The preventive use of OM-85 can reduce the use of antibiotics, contributing to contrast antibiotic resistance and saving the high cost of chronic respiratory diseases. Further studies should define the ideal candidate to OM-85 treatment.


Asunto(s)
Klebsiella , Infecciones del Sistema Respiratorio , Anciano , Niño , Humanos , Moraxella catarrhalis , Infecciones del Sistema Respiratorio/prevención & control , Streptococcus pneumoniae
5.
J Asthma ; 58(4): 481-487, 2021 04.
Artículo en Inglés | MEDLINE | ID: mdl-31903810

RESUMEN

BACKGROUND: Sleep is a significant dimension of daily life. However, only a few studies have examined the sleep quality of asthmatics in a real-world clinical settings. OBJECTIVE: This study is aimed to estimate the prevalence of sleep impairments among asthmatic patients and examine the relationship between sleep quality, asthma control, rhinitis symptoms, and sociodemographic characteristics. METHODS: The present study adopted the observational cross-sectional research design that has been designed by the Italian Respiratory Society and used valid assessments to measure the study variables. RESULTS: Data from 1150 asthmatic patients (mean age 51.01 years ± 16.03) were subjected to analysis. 58.3% of the patients had impaired sleep quality (Pittsburgh Sleep Quality Index [PSQI] total scores > 5), and their mean PSQI score was 5.68 (SD = 3.4). A significant correlation emerged between sleep quality and asthma control (p = 0.0001) and a significant albeit weak correlation emerged between PSQI total scores and Total 5 Symptoms Score (r = 0.24, p = 0.0001). Sleep quality was significantly associated health-related quality of life [HRQoL]. (r = 0.50, p < 0.001). After exclusion of patients at risk for Obstructive Sleep Apnea Syndrome (OSAS) and Gastro Esophageal Reflux Disease (GERD), the most important determinants of PSQI score were HRQoL, In the entire sample asthma control is the strongest predictor of both sleep quality and HRQoL. CONCLUSIONS: The results of this real-world study highlight the prevalence, impact and predictors of sleep disturbances in asthmatic patients and suggest the need for physicians to detect poor sleep quality.


Asunto(s)
Asma/epidemiología , Calidad de Vida , Trastornos del Inicio y del Mantenimiento del Sueño/epidemiología , Sueño/fisiología , Adulto , Anciano , Estudios Transversales , Femenino , Reflujo Gastroesofágico/epidemiología , Humanos , Masculino , Persona de Mediana Edad , Prevalencia , Rinitis/epidemiología , Apnea Obstructiva del Sueño/epidemiología , Factores Socioeconómicos
6.
Eur J Clin Microbiol Infect Dis ; 39(8): 1513-1525, 2020 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-32242314

RESUMEN

An accurate knowledge of the epidemiology of community-acquired pneumonia (CAP) is key for selecting appropriate antimicrobial treatments. Very few etiological studies assessed the appropriateness of empiric guideline recommendations at a multinational level. This study aims at the following: (i) describing the bacterial etiologic distribution of CAP and (ii) assessing the appropriateness of the empirical treatment recommendations by clinical practice guidelines (CPGs) for CAP in light of the bacterial pathogens diagnosed as causative agents of CAP. Secondary analysis of the GLIMP, a point-prevalence international study which enrolled adults hospitalized with CAP in 2015. The analysis was limited to immunocompetent patients tested for bacterial CAP agents within 24 h of admission. The CAP CPGs evaluated included the following: the 2007 and 2019 American Thoracic Society/Infectious Diseases Society of America (ATS/IDSA), the European Respiratory Society (ERS), and selected country-specific CPGs. Among 2564 patients enrolled, 35.3% had an identifiable pathogen. Streptococcus pneumoniae (8.2%) was the most frequently identified pathogen, followed by Pseudomonas aeruginosa (4.1%) and Klebsiella pneumoniae (3.4%). CPGs appropriately recommend covering more than 90% of all the potential pathogens causing CAP, with the exception of patients enrolled from Germany, Pakistan, and Croatia. The 2019 ATS/IDSA CPGs appropriately recommend covering 93.6% of the cases compared with 90.3% of the ERS CPGs (p < 0.01). S. pneumoniae remains the most common pathogen in patients hospitalized with CAP. Multinational CPG recommendations for patients with CAP seem to appropriately cover the most common pathogens and should be strongly encouraged for the management of CAP patients.


Asunto(s)
Infecciones Comunitarias Adquiridas/epidemiología , Adhesión a Directriz , Neumonía Bacteriana/epidemiología , Guías de Práctica Clínica como Asunto , Pautas de la Práctica en Medicina , Pseudomonas aeruginosa , Streptococcus pneumoniae , Anciano , Anciano de 80 o más Años , Antibacterianos/uso terapéutico , Infecciones Comunitarias Adquiridas/tratamiento farmacológico , Infecciones Comunitarias Adquiridas/microbiología , Femenino , Salud Global , Hospitalización , Humanos , Huésped Inmunocomprometido , Masculino , Persona de Mediana Edad , Neumonía Bacteriana/tratamiento farmacológico , Neumonía Bacteriana/microbiología , Prevalencia
7.
BMC Infect Dis ; 20(1): 635, 2020 Aug 26.
Artículo en Inglés | MEDLINE | ID: mdl-32847524

RESUMEN

BACKGROUND: Data regarding the prevalence of metallo-ß-lactamases (MBLs) among Pseudomonas aeruginosa isolates in cystic fibrosis patients are scarce. Furthermore, there is limited knowledge on the effect of MBL production on patient outcomes. Here we describe a fatal respiratory infection due to P. aeruginosa producing VIM-type MBLs in a lung transplant recipient and the results of the subsequent epidemiological investigation. CASE PRESENTATION: P. aeruginosa isolates collected in the index patient and among patients temporally or spatially linked with the index patient were analyzed in terms of antibiotic susceptibility profile and MBL production. Whole-genome sequencing and phylogenetic reconstruction were also performed for all P. aeruginosa isolates producing VIM-type MBLs. A VIM-producing P. aeruginosa strain was identified in a lung biopsy of a lung transplant recipient with cystic fibrosis. The strain was VIM-1-producer and belonged to the ST308. Despite aggressive treatment, the transplant patient succumbed to the pulmonary infection due to the ST308 strain. A VIM-producing P. aeruginosa strain was also collected from the respiratory samples of a different cystic fibrosis patient attending the same cystic fibrosis center. This isolate harbored the blaVIM-2 gene and belonged to the clone ST175. This patient did not experience an adverse outcome. CONCLUSIONS: This is the first description of a fatal infection due to P. aeruginosa producing VIM-type MBLs in a lung transplant recipient. The circulation of P. aeruginosa isolates harboring MBLs pose a substantial risk to the cystic fibrosis population due to the limited therapeutic options available and their spreading potential.


Asunto(s)
Antibacterianos/uso terapéutico , Trasplante de Pulmón , Infecciones por Pseudomonas/tratamiento farmacológico , Pseudomonas aeruginosa/enzimología , Infecciones del Sistema Respiratorio/tratamiento farmacológico , Receptores de Trasplantes , Adulto , Fibrosis Quística/cirugía , Farmacorresistencia Bacteriana Múltiple/efectos de los fármacos , Resultado Fatal , Femenino , Humanos , Pulmón/microbiología , Pulmón/patología , Pruebas de Sensibilidad Microbiana , Filogenia , Infecciones por Pseudomonas/microbiología , Pseudomonas aeruginosa/aislamiento & purificación , Infecciones del Sistema Respiratorio/microbiología , beta-Lactamasas/genética , beta-Lactamasas/metabolismo
8.
Osteoporos Int ; 30(6): 1255-1263, 2019 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-30798331

RESUMEN

Patients with cystic fibrosis awaiting lung transplantation for end-stage respiratory failure have high prevalence of reduced bone mineral density and fragility fracture. Suboptimal 25-hydroxyvitamin D levels could significantly contribute to the development of cystic fibrosis-related bone disease. INTRODUCTION: The assessment of the prevalence of cystic fibrosis-related bone disease (CFBD) and its associated risk factors in young adults with cystic fibrosis (CF) awaiting lung transplantation for end-stage respiratory failure. METHODS: Clinical characteristics, bone mineral density (BMD), the parameters of calcium metabolism, including vitamin D (25OHVitD) levels, and the presence of fragility fractures were evaluated in 42 CF patients (24 females, age 34.0 ± 8.4 years) consecutively referred as lung transplant candidates. RESULTS: Mean 25OHVitD levels (54.9 ± 26.2 nmol/L) were below the reference range and hypovitaminosis D (25OHVitD < 75 nmol/L) was found in 34 patients (81%) and daily calcium intakes (median 550 mg/day) were lower than recommended. A BMD below the expected range for age (Z-score of - 2.0 or lower) and at least one prevalent fragility fracture were found in 22 patients (52.4%) and 18 patients (45.2%), respectively. The coexistence of low BMD and the presence of fracture was observed in 13 patients (31.0%). In these patients, the prevalence of nephrolithiasis was higher than in the remaining ones (p = 0.046). The presence of kidney stones was associated with a worse bone status and with severe vitamin D deficiency. In the whole sample, femoral BMD Z-scores were directly correlated with albumin-adjusted calcium (p < 0.05) and 25OHVitD levels (p < 0.01). CONCLUSIONS: Despite the improvement of CF care, CFBD is still highly prevalent in young adults awaiting lung transplantation for end-stage CF. Suboptimal 25OHVitD levels could significantly contribute to the development of CFBD. The presence of nephrolithiasis could be an additional warning about the need for a careful evaluation of bone health in CF patients.


Asunto(s)
Fibrosis Quística/complicaciones , Trasplante de Pulmón , Osteoporosis/etiología , Insuficiencia Respiratoria/etiología , Adulto , Densidad Ósea/fisiología , Estudios Transversales , Fibrosis Quística/sangre , Fibrosis Quística/fisiopatología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Nefrolitiasis/etiología , Osteoporosis/sangre , Osteoporosis/fisiopatología , Fracturas Osteoporóticas/sangre , Fracturas Osteoporóticas/etiología , Fracturas Osteoporóticas/fisiopatología , Insuficiencia Respiratoria/sangre , Insuficiencia Respiratoria/fisiopatología , Insuficiencia Respiratoria/cirugía , Vitamina D/análogos & derivados , Vitamina D/sangre , Deficiencia de Vitamina D/sangre , Deficiencia de Vitamina D/etiología , Deficiencia de Vitamina D/fisiopatología , Adulto Joven
9.
Br J Anaesth ; 122(2): 269-276, 2019 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-30686313

RESUMEN

BACKGROUND: Recruitment manoeuvres generate a transient increase in trans-pulmonary pressure that could open collapsed alveoli. Recruitment manoeuvres might generate very high inspiratory airflows. We evaluated whether recruitment manoeuvres could displace respiratory secretions towards the distal airways and impair gas exchange in a porcine model of bacterial pneumonia. METHODS: We conducted a prospective randomised study in 10 mechanically ventilated pigs. Pneumonia was produced by direct intra-bronchial introduction of Pseudomonas aeruginosa. Four recruitment manoeuvres were applied randomly: extended sigh (ES), maximal recruitment strategy (MRS), sudden increase in driving pressure and PEEP (SI-PEEP), and sustained inflation (SI). Mucus transport was assessed by fluoroscopic tracking of radiopaque disks before and during each recruitment manoeuvre. The effects of each RM on gas exchange were assessed 15 min after the intervention. RESULTS: Before recruitment manoeuvres, mucus always cleared towards the glottis. Conversely, mucus was displaced towards the distal airways in 28.6% ES applications and 50% of all other recruitment manoeuvres (P=0.053). Median mucus velocity was 1.26 mm min-1 [0.48-3.89] before each recruitment manoeuvre, but was reversed (P=0.007) during ES [0.10 mm min-1 [-0.04-1.00]], MRS [0.10 mm min-1 [-0.4-0.48]], SI-PEEP [0.02 mm min-1 [-0.14-0.34]], and SI [0.10 mm min-1 [-0.63-0.75]]. When PaO2 failed to improve after recruitment manoeuvre, mucus was displaced towards the distal airways in 68.7% of the cases, compared with 31.2% recruitment manoeuvres associated with improved PaO2 (odds ratio: 4.76 (95% confidence interval: 1.13-19.97). CONCLUSIONS: Recruitment manoeuvres dislodge mucus distally, irrespective of airflow generated by different recruitment manoeuvres. Further investigation in humans is warranted to corroborate these pre clinical findings, as there may be limited benefits associated with lung recruitment in pneumonia.


Asunto(s)
Manejo de la Vía Aérea/métodos , Intubación Intratraqueal/métodos , Moco , Neumonía Bacteriana/complicaciones , Animales , Modelos Animales de Enfermedad , Femenino , Ápice del Flujo Espiratorio , Estudios Prospectivos , Pseudomonas aeruginosa , Intercambio Gaseoso Pulmonar , Respiración Artificial , Mecánica Respiratoria , Sus scrofa , Porcinos
10.
J Dairy Sci ; 102(7): 5871-5882, 2019 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-31030927

RESUMEN

Milk, milk-based products, and milk derivatives represent an important group of food commodities, with high nutritional value and widely consumed by large segment of consumers, including pregnant women, newborns, children, and the elderly. Food authentication is a rapidly growing field because of increasing consumer awareness regarding food quality and safety. This review attempts to critically summarize the status of direct and indirect analysis of the molecular species of triacylglycerols (TAG) used to assess the authenticity of milk. Identification and quantification of TAG molecular species in milk fat can be accurately performed even though analytical approaches focused on fraud evaluation should be developed. Recent analytical breakthroughs and novel techniques are discussed, along with their applications in milk authentication.


Asunto(s)
Análisis de los Alimentos/métodos , Leche/química , Valor Nutritivo , Triglicéridos/análisis , Animales , Calidad de los Alimentos
11.
J Intellect Disabil Res ; 63(8): 1023-1040, 2019 08.
Artículo en Inglés | MEDLINE | ID: mdl-30985057

RESUMEN

BACKGROUND: Students with intellectual disabilities (IDs) have various learning difficulties and are at risk for school failure. Large inter-individual differences are described for reading, but it is unclear how these vary as a function of grade. The aim of this study was to examine various reading fluency, accuracy and comprehension parameters in second-to-eighth-grade Italian children with either borderline intellectual functioning (BIF) or mild ID (MID). METHODS: We examined 106 children with BIF (67 M and 39 F) and 168 children with MID (107 M and 61 F). The children were in the second to eighth grade and were comparable for chronological age (7 to 14 years). They were administered a battery of tests that assessed fluency and accuracy of word, pseudo-word and text reading, as well as text comprehension. Standardised scores allowed us to compare the performance of the two groups with normative values. RESULTS: Children with ID obtained generally low scores compared with normative values. Those with MID had greater difficulty than those with BIF. Furthermore, difficulty was greater for speed than for accuracy measures and for words than for pseudo-words. Difficulty (particularly in the case of reading speed) tended to be pronounced at later grades. Marked individual differences were present independently of MID-BIF subgrouping, as well as stimulus category and reading parameter. CONCLUSIONS: As a group, children with ID showed difficulty in reading acquisition; the effect was greater for children with more severe ID, but large individual differences were observed in children with both BIF and MID. Relatively spared pseudo-word reading skills indicate efficient use of the grapheme-to-phoneme conversion routine. This processing mode may prove more ineffective at higher levels of schooling when even in regular orthographies such as Italian typically developing children rely on lexical activation.


Asunto(s)
Éxito Académico , Discapacidad Intelectual/fisiopatología , Lectura , Adolescente , Niño , Femenino , Humanos , Masculino , Índice de Severidad de la Enfermedad
12.
Anaesthesia ; 73(11): 1372-1381, 2018 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-30298583

RESUMEN

Leakage of colonised oropharyngeal secretions across the tracheal tube cuff may cause iatrogenic pulmonary infection. We studied a novel 'add-on' cuff, which can be inserted over an existing tracheal tube and advanced into the subglottic region. The physical properties of the novel silicone cuff (BronchoGuard, Ciel Medical, USA) were evaluated in comparison with the Hi-Lo® tracheal tube. In a bench study, we identified saline inflation volumes required to transmit pressures between 15 and 30 cmH2 O against artificial tracheas of 18, 20 and 22 mm internal diameter. We computed cuff compliance, and minimal inflation volume to achieve air sealing during mechanical ventilation. Finally, we compared the leakage flow rate of artificial saliva across the novel cuff. On average, the mean (SD) inflation volumes necessary to transmit tracheal pressures of 15, 20, 25 and 30 cmH2 O were 4.1 (2.2), 4.4 (2.3), 4.6 (2.4) and 4.8 (2.4) ml for the novel cuff and 7.7 (2.5), 8.0 (2.6), 8.4 (2.6) and 8.7 (2.7) ml for the Hi-Lo tube, respectively (p < 0.001). The minimal inflation volumes to achieve air sealing were 3.8 (0.9) and 10.5 (2.1) ml (p < 0.001), which resulted in transmitted tracheal pressures of 8.3 (9.8) and 27.6 (34.8) cmH2 O (p < 0.001). Compliance was 0.026 (0.004) and 0.616 (0.324) ml.cmH2 0-1 , respectively (p < 0.001). Although massive leak was found when the novel cuff transmitted pressures ≤ 20 cmH2 O against the trachea, leakage was avoided with pressures ≥ 25 cmH2 O, owing to optimal contact between the cuff and the tracheal wall. In contrast, the standard cuff consistently leaked irrespective of the pressure. We conclude that the novel cuff has advantageous properties that warrant clinical corroboration.


Asunto(s)
Intubación Intratraqueal/instrumentación , Diseño de Equipo , Técnicas In Vitro , Siliconas
13.
Respir Res ; 18(1): 19, 2017 01 18.
Artículo en Inglés | MEDLINE | ID: mdl-28100244

RESUMEN

BACKGROUND: As emphasized by international recommendations and largely confirmed by clinical experience, long-acting bronchodilators play a central role in the maintenance treatment of chronic obstructive pulmonary disease (COPD) due to their proven efficacy in reducing airflow obstruction and improving symptoms. MAIN BODY: There are some important aspects to define with regard to inhalation therapy for COPD, particularly those concerning the selection criteria and the optimal use of long-acting bronchodilators. First of all, it needs to be determined in which patients and clinical situations monotherapy with one bronchodilator, such as a long-acting muscarinic antagonist (LAMA), should be considered adequate, and in which cases the use of combination therapies, such as the "double bronchodilation" with a LAMA and a long-acting ß2-agonist (LABA), should be preferred. Another critical issue concerns the effect of the frequency of daily administration of inhaled agents on the control of symptoms during the 24 h. COPD symptoms are known to exhibit considerable circadian variability with worsening in the early morning, and a significant proportion of patients have disease-related sleep disorders which can adversely affect their quality of life. The worsening of symptoms in the early morning may be due, at least in part, to a reduction in airway caliber caused by an increased "cholinergic tone" at night. As such, the coverage of nighttime and early morning symptoms is a reasonable therapeutic goal, which can be achieved by many patients using LAMAs such as aclidinium bromide twice daily (BID). Therapeutic adherence is known to be a multifactorial phenomenon that is frequently affected by other aspects than dosing frequency, including the technical features and ease of use of the inhalers. To this end, it should be mentioned that certain new-generation inhalers such as Genuair® have been associated in clinical trials with higher patient preference. CONCLUSION: In this work, in addition to presenting an overview of the main evidence on the efficacy of COPD treatment with the LAMA aclidinium bromide BID, we suggest some selection criteria for the monotherapy with one long-acting bronchodilator or the combination therapy with LAMA and LABA in COPD patients, with particular reference to specific clinical scenarios.


Asunto(s)
Agonistas de Receptores Adrenérgicos beta 2/administración & dosificación , Enfermedad Pulmonar Obstructiva Crónica/diagnóstico , Enfermedad Pulmonar Obstructiva Crónica/tratamiento farmacológico , Tropanos/administración & dosificación , Administración por Inhalación , Broncodilatadores/administración & dosificación , Toma de Decisiones Clínicas , Relación Dosis-Respuesta a Droga , Quimioterapia Combinada/métodos , Medicina Basada en la Evidencia , Humanos , Antagonistas Muscarínicos , Resultado del Tratamiento
14.
Pulm Pharmacol Ther ; 44: 24-29, 2017 06.
Artículo en Inglés | MEDLINE | ID: mdl-28302543

RESUMEN

The morbidity and mortality of community-acquired pneumonia (CAP) are still elevated and two aspects seem to contribute to a worse outcome: an uncontrolled inflammatory reaction and an inadequate immune response. Adjuvants, including corticosteroids and intravenous immunoglobulins, have been proposed to counterbalance these effects but their efficacy is only partial. We examined the immunomodulatory activity of Pidotimod (PDT), a synthetic dipeptide molecule in adult patients hospitalized for CAP. Sixteen patients with a diagnosis of CAP and a PSI score III or IV and/or a CURB-65 0-2 were randomized to receive either levofloxacin 500 mg b.i.d. alone or levofloxacin plus PDT (800mg, 2 daily doses). Blood samples were drawn at baseline (T0), before initiation of therapy, as well as 3 (T3), and 5 (T5) days after initiation of therapy. Immunologic and clinical parameters were analyzed at each time point. Supplementation of antibiotic therapy with PDT resulted in an upregulation of antimicrobial and of immunomodulatory proteins as well as in an increased percentage of Toll like receptor (TLR)2- and TLR4, and of CD80- and CD86-expressing immune cells. Notably, Pidotimod supplementation was also associated with a robust reduction of TNFα-producing immune cells. No significant differences were observed in clinical parameters. These results confirm that supplementation of antibiotic therapy with Pidotimod in patients with CAP results in a potentially beneficial modulation of innate immunity.


Asunto(s)
Antibacterianos/uso terapéutico , Infecciones Comunitarias Adquiridas/tratamiento farmacológico , Neumonía/tratamiento farmacológico , Ácido Pirrolidona Carboxílico/análogos & derivados , Tiazolidinas/administración & dosificación , Infecciones Comunitarias Adquiridas/inmunología , Femenino , Hospitalización , Humanos , Inmunidad Innata/efectos de los fármacos , Factores Inmunológicos/administración & dosificación , Factores Inmunológicos/farmacología , Levofloxacino/uso terapéutico , Masculino , Persona de Mediana Edad , Neumonía/inmunología , Estudios Prospectivos , Ácido Pirrolidona Carboxílico/administración & dosificación , Ácido Pirrolidona Carboxílico/farmacología , Tiazolidinas/farmacología , Factores de Tiempo , Resultado del Tratamiento , Factor de Necrosis Tumoral alfa/inmunología
15.
Clin Mol Allergy ; 15: 9, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28400707

RESUMEN

Even if severe asthma (SA) accounts for 5-10% of all cases of the disease, it is currently a crucial unmet need, owing its difficult clinical management and its high social costs. For this reason several networks, focused on SA have been organized in some countries, in order to select these patients, to recognize their clinical features, to evaluate their adherence, to classify their biological/clinical phenotypes, to identify their eligibility to the new biologic therapies and to quantify the costs of the disease. Aim of the present paper is to describe the ongoing Italian Severe Asthma Network (SANI). Up today 49 centres have been selected, widespread on the national territory. Sharing the same diagnostic protocol, data regarding patients with SA will be collected and processed in a web platform. After their recruitment, SA patients will be followed in the long term in order to investigate the natural history of the disease. Besides clinical data, the cost/benefit evaluation of the new biologics will be verified as well as the search of peculiar biomarker(s) of the disease.

16.
Am J Transplant ; 16(4): 1312-8, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-26603283

RESUMEN

We developed a protocol to procure lungs from uncontrolled donors after circulatory determination of death (NCT02061462). Subjects with cardiovascular collapse, treated on scene by a resuscitation team and transferred to the emergency room, are considered potential donors once declared dead. Exclusion criteria include unwitnessed collapse, no-flow period of >15 min and low flow >60 min. After death, lung preservation with recruitment maneuvers, continuous positive airway pressure, and protective mechanical ventilation is applied to the donor. After procurement, ex vivo lung perfusion (EVLP) is performed. From November 2014, 10 subjects were considered potential donors; one of these underwent the full process of procurement, EVLP, and transplantation. The donor was a 46-year-old male who died because of thoracic aortic dissection. Lungs were procured 4 h and 48 min after death, and deemed suitable for transplantation after EVLP. Lungs were then offered to a rapidly deteriorating recipient with cystic fibrosis (lung allocation score [LAS] 46) who consented to the transplant in this experimental setting. Six months after transplantation, the recipient is in good condition (forced expiratory volume in 1 s 85%) with no signs of rejection. This protocol allowed procurement of lungs from an uncontrolled donor after circulatory determination of death following an extended period of warm ischemia.


Asunto(s)
Fibrosis Quística/cirugía , Circulación Extracorporea , Trasplante de Pulmón , Perfusión/métodos , Alveolos Pulmonares , Obtención de Tejidos y Órganos/métodos , Adulto , Anciano , Causas de Muerte , Humanos , Masculino , Persona de Mediana Edad , Pronóstico , Respiración Artificial , Donantes de Tejidos
18.
Eur J Clin Microbiol Infect Dis ; 34(6): 1071-9, 2015 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-25686729

RESUMEN

Rational antimicrobial administration is still considered to be the most effective therapeutic approach in cystic fibrosis (CF), and long-term treatment with azithromycin (Az) is included in the current guidelines for CF patients aged ≥ 6 years. Az has microbiological, immunomodulatory and anti-inflammatory properties that can reduce some of the biological problems that are among the causes of the progressive lung damage associated with CF. Moreover, although it is not active against Pseudomonas aeruginosa (the most important bacterial pathogen responsible for infectious exacerbations), it can be efficiently used in the case of P. aeruginosa infections because sub-inhibitory concentrations can reduce their pathogenic role by interfering with some bacterial activities and increasing their susceptibility to antibiotics. Az also has anti-viral activity that limits the risk of the bacterial pulmonary exacerbations that frequently occur after apparently mild viral infections. The available data seem to indicate that it is effective during its first year of administration, but the impact of longer treatment is debated. Other still undefined aspects of the use of Az include the possible emergence of antibiotic resistance in the other bacterial pathogens that usually colonise CF patients, the real incidence of adverse events and the drug's potential interference with other routine therapies.


Asunto(s)
Antibacterianos/uso terapéutico , Azitromicina/uso terapéutico , Bronconeumonía/tratamiento farmacológico , Fibrosis Quística/complicaciones , Neumonía Bacteriana/tratamiento farmacológico , Humanos
19.
Infection ; 43(6): 729-38, 2015 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-26424683

RESUMEN

PURPOSE: Further examination of clinical outcomes and inflammatory response of bacteremic pneumococcal community-acquired pneumonia (CAP) is of great interest to enhance the care of patients with pneumococcal CAP. METHODS: This is a secondary analysis of the Community Acquired Pneumonia Organization (CAPO) to compare the time to clinical stability (TCS), length of hospital stay (LOS), and in-hospital mortality of hospitalized pneumococcal CAP patients with and without bacteremia. To measure the effect of bacteremia in pneumococcal CAP patients on outcomes, we modeled all-cause in-hospital mortality using a Poisson regression model, and TCS and LOS using Cox proportional hazards models. Adjusted multivariate regression models were also used to predict the probability of occurrence of each of the study outcomes. To investigate the inflammatory response, we measured the plasma levels of pro- and anti-inflammatory cytokines [tumor necrosis factor (TNF)-α, interleukin (IL)-1rα, IL-6, IL-8, IL-10], inflammatory biomarkers [C-reactive protein (CRP), pro-calcitonin (PCT), and B-type natriuretic peptide (BNP)], and peripheral blood neutrophil responses in 10 patients, 4 bacteremic and 6 non-bacteremic pneumococcal CAP, upon admission and every other day during the first 6 days of hospitalization. Functional data were presented as median and standard error of the median (SEM); due to small number of samples no statistical comparisons were performed between groups. RESULTS: From 833 pneumococcal CAP patients, 394 patients (47 %) were bacteremic. Bacteremic pneumococcal CAP were less likely to reach TCS with an adjusted hazard ratio (AHR) of 0.82 (95 % CI 0.69-0.97; p = 0.02) and had higher in-hospital mortality with an AHR of 1.63 (95 % CI 1.06-2.50, p = 0.026). Bacteremic pneumococcal CAP patients had a longer LOS than non-bacteremic pneumococcal CAP (p < 0.003). Higher plasma levels of CRP, PCT, and BNP were found in bacteremic than in non-bacteremic patients. The bacteremic group had consistently higher plasma levels of both pro- and anti-inflammatory cytokines. The blood neutrophil functional responses were similar in both groups of patients. CONCLUSIONS: Bacteremic pneumococcal CAP patients were significantly associated with higher in-hospital mortality, lower TCS, and longer LOS. HIV-infected patients showed a greater mortality which was not statistically significant. Bacteremic pneumococcal CAP patients had higher levels of biomarkers and systemic cytokines.


Asunto(s)
Bacteriemia/diagnóstico , Bacteriemia/patología , Infecciones Comunitarias Adquiridas/patología , Neumonía Neumocócica/complicaciones , Neumonía Neumocócica/patología , Streptococcus pneumoniae/aislamiento & purificación , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Bacteriemia/mortalidad , Proteína C-Reactiva/análisis , Calcitonina/sangre , Infecciones Comunitarias Adquiridas/microbiología , Citocinas/sangre , Femenino , Humanos , Tiempo de Internación , Masculino , Persona de Mediana Edad , Péptido Natriurético Encefálico/sangre , Plasma/química , Estudios Prospectivos , Análisis de Supervivencia , Resultado del Tratamiento , Adulto Joven
20.
Eur Respir J ; 44(2): 304-23, 2014 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-24925919

RESUMEN

The objective of Integrated Care Pathways for Airway Diseases (AIRWAYS-ICPs) is to launch a collaboration to develop multi-sectoral care pathways for chronic respiratory diseases in European countries and regions. AIRWAYS-ICPs has strategic relevance to the European Union Health Strategy and will add value to existing public health knowledge by: 1) proposing a common framework of care pathways for chronic respiratory diseases, which will facilitate comparability and trans-national initiatives; 2) informing cost-effective policy development, strengthening in particular those on smoking and environmental exposure; 3) aiding risk stratification in chronic disease patients, using a common strategy; 4) having a significant impact on the health of citizens in the short term (reduction of morbidity, improvement of education in children and of work in adults) and in the long-term (healthy ageing); 5) proposing a common simulation tool to assist physicians; and 6) ultimately reducing the healthcare burden (emergency visits, avoidable hospitalisations, disability and costs) while improving quality of life. In the longer term, the incidence of disease may be reduced by innovative prevention strategies. AIRWAYSICPs was initiated by Area 5 of the Action Plan B3 of the European Innovation Partnership on Active and Healthy Ageing. All stakeholders are involved (health and social care, patients, and policy makers).


Asunto(s)
Trastornos Respiratorios/terapia , Envejecimiento , Asma/terapia , Toma de Decisiones , Europa (Continente) , Unión Europea , Guías como Asunto , Humanos , Cooperación Internacional , Área sin Atención Médica , Enfermedad Pulmonar Obstructiva Crónica/terapia , Calidad de Vida , Rinitis/terapia , Factores de Riesgo , Organización Mundial de la Salud
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA