Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 69
Filtrar
1.
Circulation ; 149(11): 825-838, 2024 03 12.
Artigo em Inglês | MEDLINE | ID: mdl-38059368

RESUMO

BACKGROUND: Sodium-glucose cotransporter 2 inhibitors reduce the risk of worsening heart failure (HF) and cardiovascular death in patients with HF irrespective of left ventricular ejection fraction. It is important to determine whether therapies for HF improve symptoms and functional capacity. METHODS: The DETERMINE (Dapagliflozin Effect on Exercise Capacity Using a 6-Minute Walk Test in Patients With Heart Failure) double-blind, placebo-controlled, multicenter trials assessed the efficacy of the sodium-glucose cotransporter 2 inhibitor dapagliflozin on the Total Symptom Score (TSS) and Physical Limitation Scale (PLS) of the Kansas City Cardiomyopathy Questionnaire (KCCQ) and 6-minute walk distance (6MWD) in 313 patients with HF with reduced ejection fraction (DETERMINE-Reduced) and in 504 patients with HF with preserved ejection fraction (DETERMINE-Preserved) with New York Heart Association class II or III symptoms and elevated natriuretic peptide levels. The primary outcomes were changes in the KCCQ-TSS, KCCQ-PLS, and 6MWD after 16 weeks of treatment. RESULTS: Among the 313 randomized patients with HF with reduced ejection fraction, the median placebo-corrected difference in KCCQ-TSS from baseline at 16 weeks was 4.2 (95% CI, 1.0, 8.2; P=0.022) in favor of dapagliflozin. The median placebo-corrected difference in KCCQ-PLS was 4.2 (95% CI, 0.0, 8.3; P=0.058). The median placebo-corrected difference in 6MWD from baseline at 16 weeks was 3.2 meters (95% CI, -6.5, 13.0; P=0.69). In the 504 patients with HF with preserved ejection fraction, the median placebo-corrected 16-week difference in KCCQ-TSS and KCCQ-PLS was 3.2 (95% CI, 0.4, 6.0; P=0.079) and 3.1 (-0.1, 5.4; P=0.23), respectively. The median 16-week difference in 6MWD was 1.6 meters (95% CI, -5.9, 9.0; P=0.67). In an exploratory post hoc analysis of both trials combined (DETERMINE-Pooled), the median placebo-corrected difference from baseline at 16 weeks was 3.7 (1.5, 5.9; P=0.005) for KCCQ-TSS, 4.0 (0.3, 4.9; P=0.036) for KCCQ-PLS, and 2.5 meters (-3.5, 8.4; P=0.50) for 6MWD. CONCLUSIONS: Dapagliflozin improved the KCCQ-TSS in patients with HF with reduced ejection fraction but did not improve KCCQ-PLS or 6MWD. Dapagliflozin did not improve these outcomes in patients with HF with preserved ejection fraction. In a post hoc analysis including all patients across the full spectrum of ejection fraction, there was a beneficial effect of dapagliflozin on KCCQ-TSS and KCCQ-PLS but not 6MWD. REGISTRATION: URL: https://www.clinicaltrials.gov; Unique identifiers: NCT03877237 and NCT03877224.


Assuntos
Compostos Benzidrílicos , Glucosídeos , Insuficiência Cardíaca , Disfunção Ventricular Esquerda , Humanos , Volume Sistólico , Função Ventricular Esquerda , Qualidade de Vida , Ensaios Clínicos Controlados Aleatórios como Assunto , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/tratamento farmacológico , Insuficiência Cardíaca/complicações , Disfunção Ventricular Esquerda/complicações , Glucose , Sódio
2.
N Engl J Med ; 387(12): 1089-1098, 2022 09 22.
Artigo em Inglês | MEDLINE | ID: mdl-36027570

RESUMO

BACKGROUND: Sodium-glucose cotransporter 2 (SGLT2) inhibitors reduce the risk of hospitalization for heart failure and cardiovascular death among patients with chronic heart failure and a left ventricular ejection fraction of 40% or less. Whether SGLT2 inhibitors are effective in patients with a higher left ventricular ejection fraction remains less certain. METHODS: We randomly assigned 6263 patients with heart failure and a left ventricular ejection fraction of more than 40% to receive dapagliflozin (at a dose of 10 mg once daily) or matching placebo, in addition to usual therapy. The primary outcome was a composite of worsening heart failure (which was defined as either an unplanned hospitalization for heart failure or an urgent visit for heart failure) or cardiovascular death, as assessed in a time-to-event analysis. RESULTS: Over a median of 2.3 years, the primary outcome occurred in 512 of 3131 patients (16.4%) in the dapagliflozin group and in 610 of 3132 patients (19.5%) in the placebo group (hazard ratio, 0.82; 95% confidence interval [CI], 0.73 to 0.92; P<0.001). Worsening heart failure occurred in 368 patients (11.8%) in the dapagliflozin group and in 455 patients (14.5%) in the placebo group (hazard ratio, 0.79; 95% CI, 0.69 to 0.91); cardiovascular death occurred in 231 patients (7.4%) and 261 patients (8.3%), respectively (hazard ratio, 0.88; 95% CI, 0.74 to 1.05). Total events and symptom burden were lower in the dapagliflozin group than in the placebo group. Results were similar among patients with a left ventricular ejection fraction of 60% or more and those with a left ventricular ejection fraction of less than 60%, and results were similar in prespecified subgroups, including patients with or without diabetes. The incidence of adverse events was similar in the two groups. CONCLUSIONS: Dapagliflozin reduced the combined risk of worsening heart failure or cardiovascular death among patients with heart failure and a mildly reduced or preserved ejection fraction. (Funded by AstraZeneca; DELIVER ClinicalTrials.gov number, NCT03619213.).


Assuntos
Insuficiência Cardíaca , Inibidores do Transportador 2 de Sódio-Glicose , Volume Sistólico , Função Ventricular Esquerda , Compostos Benzidrílicos/efeitos adversos , Compostos Benzidrílicos/uso terapêutico , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/tratamento farmacológico , Glucosídeos/efeitos adversos , Glucosídeos/uso terapêutico , Insuficiência Cardíaca/complicações , Insuficiência Cardíaca/tratamento farmacológico , Insuficiência Cardíaca/mortalidade , Insuficiência Cardíaca/fisiopatologia , Humanos , Inibidores do Transportador 2 de Sódio-Glicose/efeitos adversos , Inibidores do Transportador 2 de Sódio-Glicose/farmacologia , Inibidores do Transportador 2 de Sódio-Glicose/uso terapêutico , Volume Sistólico/efeitos dos fármacos , Função Ventricular Esquerda/efeitos dos fármacos
3.
J Card Fail ; 30(3): 436-448, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38104937

RESUMO

BACKGROUND: Sleep apnea is more common in patients with heart failure (HF) than in the general population, but little is known about its association with clinical outcomes in various HF phenotypes or how it might modify the effect of HF therapy. OBJECTIVES: To examine the prevalence of sleep apnea, its association with outcomes and the effects of dapagliflozin in patients with HF with and without sleep apnea in a pooled analysis of 2 trials comparing dapagliflozin to placebo in HFrEF (DAPA-HF trial) and HFmrEF/HFpEF (DELIVER trial). METHODS: A history of sleep apnea was investigator-reported. The primary outcome was a composite of worsening HF or cardiovascular death. RESULTS: The prevalence of sleep apnea was 5.7% and 7.8% in patients with HFrEF and HFmrEF/HFpEF, respectively. The primary outcome occurred at a rate of 16.0 in participants with sleep apnea compared to 10.6 per 100 person-years in those without (adjusted HR 1.29 [95%CI, 1.10-1.52]). Compared with placebo, dapagliflozin reduced the risk of the primary endpoint to the same extent in patients with (HR 0.78 [95% CI, 0.59-1.03]) and without sleep apnea (HR 0.79 [0.72-0.87]) [Pinteraction = 0.93]. The beneficial effects of dapagliflozin on other clinical outcomes and symptom burden, physical function, and quality of life were consistent in participants with and without sleep apnea. CONCLUSIONS: In DAPA-HF and DELIVER, the true prevalence of sleep apnea was likely underestimated. An investigator-reported history of sleep apnea was associated with higher rates of worsening HF events. The benefits of dapagliflozin on clinical outcomes were consistent in patients with and without sleep apnea. CLINICAL TRIAL REGISTRATION: Unique identifiers: NCT01920711 CONDENSED ABSTRACT: In a pooled analysis of the DAPA-HF and DELIVER trials of more than 11,000 patients with heart failure (HF) across the range of ejection fractions, an investigator-reported history of sleep apnea was associated with higher rates of worsening HF events but not mortality. The beneficial effects of dapagliflozin on clinical outcomes were consistent in patients with and without sleep apnea. These findings provide further evidence for dapagliflozin as a new treatment option for patients with heart failure across the range of ejection fractions.


Assuntos
Compostos Benzidrílicos , Insuficiência Cardíaca , Humanos , Glucosídeos/uso terapêutico , Insuficiência Cardíaca/tratamento farmacológico , Insuficiência Cardíaca/epidemiologia , Qualidade de Vida , Volume Sistólico , Função Ventricular Esquerda , Ensaios Clínicos Controlados Aleatórios como Assunto
4.
Eur Heart J ; 44(24): 2170-2183, 2023 06 25.
Artigo em Inglês | MEDLINE | ID: mdl-37220172

RESUMO

AIMS: Because an increased risk of amputation with canagliflozin was reported in the CANVAS trials, there has been a concern about the safety of sodium-glucose cotransporter 2 inhibitors in patients with peripheral artery disease (PAD) who are at higher risk of amputation. METHODS AND RESULTS: A patient-level pooled analysis of the DAPA-HF and DELIVER trials, which evaluated the efficacy and safety of dapagliflozin in patients with heart failure (HF) with reduced, mildly reduced/preserved ejection fraction, respectively, was conducted. In both trials, the primary outcome was the composite of worsening HF or cardiovascular death, and amputation was a prespecified safety outcome. Peripheral artery disease history was available for 11 005 of the total 11 007 patients. Peripheral artery disease was reported in 809 of the 11 005 patients (7.4%). Median follow-up was 22 months (interquartile range 17-30). The rate of the primary outcome (per 100 person-years) was higher in PAD patients than that in non-PAD patients: 15.1 [95% confidence interval (CI) 13.1-17.3) vs. 10.6 (10.2-11.1]; adjusted hazard ratio 1.23 (95% CI 1.06-1.43). The benefit of dapagliflozin on the primary outcome was consistent in patients with [hazard ratio 0.71 (95% CI 0.54-0.94)] and without PAD [0.80 (95% CI 0.73-0.88)] (Pinteraction = 0.39). Amputations, while more frequent in PAD patients, were not more common with dapagliflozin, compared with placebo, irrespective of PAD status (PAD, placebo 4.2% vs. dapagliflozin 3.7%; no PAD, placebo 0.4% vs. dapagliflozin 0.4%) (Pinteraction = 1.00). Infection rather than ischaemia was the main trigger for amputation, even in patients with PAD. CONCLUSION: The risk of worsening HF or cardiovascular death was higher in patients with PAD, as was the risk of amputation. The benefits of dapagliflozin were consistent in patients with and without PAD, and dapagliflozin did not increase the risk of amputation.


Assuntos
Diabetes Mellitus Tipo 2 , Insuficiência Cardíaca , Doença Arterial Periférica , Inibidores do Transportador 2 de Sódio-Glicose , Humanos , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/tratamento farmacológico , Insuficiência Cardíaca/tratamento farmacológico , Insuficiência Cardíaca/induzido quimicamente , Doença Arterial Periférica/tratamento farmacológico , Inibidores do Transportador 2 de Sódio-Glicose/efeitos adversos , Volume Sistólico
5.
Circulation ; 146(16): 1210-1224, 2022 10 18.
Artigo em Inglês | MEDLINE | ID: mdl-36029465

RESUMO

BACKGROUND: Frailty is increasing in prevalence. Because patients with frailty are often perceived to have a less favorable risk/benefit profile, they may be less likely to receive new pharmacologic treatments. We investigated the efficacy and tolerability of dapagliflozin according to frailty status in patients with heart failure with mildly reduced or preserved ejection fraction randomized in DELIVER (Dapagliflozin Evaluation to Improve the Lives of Patients With Preserved Ejection Fraction Heart Failure). METHODS: Frailty was measured using the Rockwood cumulative deficit approach. The primary end point was time to a first worsening heart failure event or cardiovascular death. RESULTS: Of the 6263 patients randomized, a frailty index (FI) was calculable in 6258. In total, 2354 (37.6%) patients had class 1 frailty (FI ≤0.210; ie, not frail), 2413 (38.6%) had class 2 frailty (FI 0.211-0.310; ie, more frail), and 1491 (23.8%) had class 3 frailty (FI ≥0.311; ie, most frail). Greater frailty was associated with a higher rate of the primary end point (per 100 person-years): FI class 1, 6.3 (95% CI 5.7-7.1); class 2, 8.3 (7.5-9.1); and class 3, 13.4 (12.1-14.7; P<0.001). The effect of dapagliflozin (as a hazard ratio) on the primary end point from FI class 1 to 3 was 0.85 (95% CI, 0.68-1.06), 0.89 (0.74-1.08), and 0.74 (0.61-0.91), respectively (Pinteraction=0.40). Although patients with a greater degree of frailty had worse Kansas City Cardiomyopathy Questionnaire scores at baseline, their improvement with dapagliflozin was greater than it was in patients with less frailty: placebo-corrected improvement in Kansas City Cardiomyopathy Questionnaire Overall Summary Score at 4 months in FI class 1 was 0.3 (95% CI, -0.9 to 1.4); in class 2, 1.5 (0.3-2.7); and in class 3, 3.4 (1.7-5.1; Pinteraction=0.021). Adverse reactions and treatment discontinuation, although more frequent in patients with a greater degree of frailty, were not more common with dapagliflozin than with placebo irrespective of frailty class. CONCLUSIONS: In DELIVER, frailty was common and associated with worse outcomes. The benefit of dapagliflozin was consistent across the range of frailty studied. The improvement in health-related quality of life with dapagliflozin occurred early and was greater in patients with a higher level of frailty. REGISTRATION: URL: https://www. CLINICALTRIALS: gov; Unique identifier: NCT03619213.


Assuntos
Compostos Benzidrílicos , Fragilidade , Glucosídeos , Insuficiência Cardíaca , Humanos , Compostos Benzidrílicos/efeitos adversos , Fragilidade/epidemiologia , Glucosídeos/efeitos adversos , Insuficiência Cardíaca/tratamento farmacológico , Qualidade de Vida , Volume Sistólico
6.
Eur Heart J ; 43(41): 4406-4417, 2022 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-36029309

RESUMO

AIMS: Obesity is common and associated with unique phenotypic features in heart failure with preserved ejection fraction (HFpEF). Therefore, understanding the efficacy and safety of new therapies in HFpEF patients with obesity is important. The effects of dapagliflozin were examined according to body mass index (BMI) among patients in the Dapagliflozin Evaluation to Improve the LIVEs of Patients With PReserved Ejection Fraction Heart Failure trial. METHODS AND RESULTS: Body mass index was analysed by World Health Organization (WHO) categories and as a continuous variable using restricted cubic splines. Body mass index ranged from 15.2 to 50 kg/m2 with a mean value of 29.8 (standard deviation ± 6.1) kg/m2. The proportions, by WHO category, were: normal weight 1343 (21.5%); overweight 2073 (33.1%); Class I obesity 1574 (25.2%); Class II obesity 798 (12.8%); and Class III obesity 415 (6.6%). Compared with placebo, dapagliflozin reduced the risk of the primary outcome to a similar extent across these categories: hazard ratio (95% confidence interval): 0.89 (0.69-1.15), 0.87 (0.70-1.08), 0.74 (0.58-0.93), 0.78 (0.57-1.08), and 0.72 (0.47-1.08), respectively (P-interaction = 0.82). The placebo-corrected change in Kansas City Cardiomyopathy Questionnaire total symptom score with dapagliflozin at 8 months was: 0.9 (-1.1, 2.8), 2.5 (0.8, 4.1), 1.9 (-0.1, 3.8), 2.7 (-0.5, 5.8), and 8.6 (4.0, 13.2) points, respectively (P-interaction = 0.03). The placebo-corrected change in weight at 12 months was: -0.88 (-1.28, -0.47), -0.65 (-1.04, -0.26), -1.42 (-1.89, -0.94), -1.17 (-1.94, -0.40), and -2.50 (-4.4, -0.64) kg (P-interaction = 0.002). CONCLUSIONS: Obesity is common in patients with HFpEF and is associated with higher rates of heart failure hospitalization and worse health status. Treatment with dapagliflozin improves cardiovascular outcomes across the spectrum of BMI, leads to greater symptom improvement in patients with obesity, compared with those without, and has the additional benefit of causing modest weight loss.


Assuntos
Insuficiência Cardíaca , Humanos , Insuficiência Cardíaca/tratamento farmacológico , Insuficiência Cardíaca/complicações , Índice de Massa Corporal , Volume Sistólico , Obesidade/complicações
7.
BJU Int ; 127(3): 361-368, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-32916021

RESUMO

OBJECTIVES: To evaluate how surgeon heterogeneity - the variation in outcomes between individual surgeons - influences functional and oncological outcomes after robot-assisted laparoscopic prostatectomy (RALP) and retropubic radical prostatectomy (RRP), and to assess whether surgeon heterogeneity affects the comparison between RALP and RRP. PATIENTS AND METHODS: Laparoscopic Prostatectomy Robot Open (LAPPRO) is a prospective, controlled, non-randomized trial performed at 14 Swedish centres with 68 operating surgeons. A total of 4003 men with localized prostate cancer were enrolled between 2008 and 2011. The endpoints were urinary incontinence, erectile dysfunction (ED) and recurrence at 24 months after surgery. Logistic regression models were built to evaluate surgeon heterogeneity and, secondarily, surgeon-specific factors were added to the models to investigate their influence on heterogeneity and the comparison between RALP and RRP. RESULTS: Among surgeons who performed at least 20 surgeries during the study period (n=25), we observed statistically significant heterogeneity for incontinence (P = 0.001), ED (P < 0.001) and rate of recurrent disease (P < 0.001). The significant heterogeneity remained when analysing only experienced surgeons with a stated experience of at least 250 radical prostatectomies (n=12). Among all participating surgeons (n=68), differences in surgeon volume explained 42% of the observed heterogeneity for incontinence (P = 0.003), 11% for ED (P = 0.03) and 19% for recurrence (P = 0.01). Taking surgeon volume into account when comparing RALP and RRP had a significant impact on the results. The effect was greatest for functional outcomes, and the additional adjustments for the surgeons' previous experience changed whether the difference between techniques was statistically significant or not. The surgeons' annual volume had the greatest effect on the recurrence rate. CONCLUSIONS: There was a large degree of heterogeneity among surgeons regarding both functional and oncological outcomes and this had a significant impact on the results when comparing RALP and RRP. Some of the observed heterogeneity was explained by differences in surgeon volume. Efforts to decrease heterogeneity are warranted and variation among surgeons must be accounted for when conducting comparative analyses between surgical techniques.


Assuntos
Recidiva Local de Neoplasia , Prostatectomia/métodos , Prostatectomia/estatística & dados numéricos , Neoplasias da Próstata/cirurgia , Cirurgiões/estatística & dados numéricos , Idoso , Competência Clínica/estatística & dados numéricos , Disfunção Erétil/etiologia , Humanos , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/patologia , Estudos Prospectivos , Prostatectomia/efeitos adversos , Neoplasias da Próstata/patologia , Procedimentos Cirúrgicos Robóticos , Suécia , Resultado do Tratamento , Incontinência Urinária/etiologia
8.
Diabetes Obes Metab ; 23(7): 1505-1517, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-33625777

RESUMO

AIM: To explore the early effects of dapagliflozin on myocardial function and metabolism in patients with type 2 diabetes without heart failure. MATERIALS AND METHODS: Patients with type 2 diabetes on metformin treatment were randomized to double-blind, 6-week placebo or dapagliflozin 10 mg daily treatment. Investigations included cardiac function and structure with myocardial resonance imaging; cardiac oxygen consumption, perfusion and efficiency with [11 C]-acetate positron emission tomography (PET); and cardiac and hepatic fatty acid uptake with [18 F]-6-thia-heptadecanoic acid PET, analysed by ANCOVA as least square means with 95% confidence intervals. RESULTS: Evaluable patients (placebo: n = 24, dapagliflozin: n = 25; 53% males) had a mean age of 64.4 years, a body mass index of 30.2 kg/m2 and an HbA1c of 6.7%. Body weight and HbA1c were significantly decreased by dapagliflozin versus placebo. Dapagliflozin had no effect on myocardial efficiency, but external left ventricular (LV) work (-0.095 [-0.145, -0.043] J/g/min) and LV oxygen consumption were significantly reduced (-0.30 [-0.49, -0.12] J/g/min) by dapagliflozin, although the changes were not statistically significant versus changes in the placebo group. Change in left atrial maximal volume with dapagliflozin versus placebo was -3.19 (-6.32, -0.07) mL/m2 (p = .056). Peak global radial strain decreased with dapagliflozin versus placebo (-3.92% [-7.57%, -0.28%]; p = .035), while peak global longitudinal and circumferential strains were unchanged. Hepatic fatty acid uptake was increased by dapagliflozin versus placebo (0.024 [0.004, 0.044] µmol/g/min; p = .018), while cardiac uptake was unchanged. CONCLUSIONS: This exploratory study indicates reduced heart work but limited effects on myocardial function, efficiency and cardiac fatty acid uptake, while hepatic fatty acid uptake increased, after 6 weeks of treatment with dapagliflozin.


Assuntos
Diabetes Mellitus Tipo 2 , Inibidores do Transportador 2 de Sódio-Glicose , Simportadores , Compostos Benzidrílicos/uso terapêutico , Glicemia , Diabetes Mellitus Tipo 2/tratamento farmacológico , Método Duplo-Cego , Feminino , Glucose , Glucosídeos , Hemoglobinas Glicadas/metabolismo , Humanos , Hipoglicemiantes/uso terapêutico , Masculino , Pessoa de Meia-Idade , Sódio , Inibidores do Transportador 2 de Sódio-Glicose/uso terapêutico , Resultado do Tratamento
9.
Psychooncology ; 27(2): 668-675, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-29024232

RESUMO

OBJECTIVE: Studies indicate that social constraints (barriers to emotional expression) may be a risk factor for psychological morbidity. We aimed to investigate the association between prostate cancer-related social constraints and psychological well-being following prostate cancer surgery. METHODS: In a group of 3478 partnered patients, participating in the Laparoscopic Prostatectomy Robot Open trial, a prospective multicenter comparative study of robot-assisted laparoscopic and retropubic radical prostatectomy for prostate cancer, we used log-binomial regression analysis to investigate the links between prostate cancer-related social constraints at 3 months after surgery and psychological well-being at 12 and 24 months. RESULTS: A total of 1086 and 1093 men reported low well-being at 12 and 24 months, respectively. Prostate cancer-related social constraints by partner predicted low psychological well-being at 12 months (adjusted RR: 1.4; 95% CI, 1.1-1.9) and by others (adjusted RR: 1.9; 95% CI, 1.1-3.5). Intrusive thoughts mediated the association. CONCLUSIONS: Negative responses from the social environment, especially from partner to talking about the prostate cancer experience affected patients' psychological well-being 2 years after radical prostatectomy. Results emphasize the importance of helping patients mobilize psychosocial resources within their social network, especially among those with a lack of quality psychosocial support.


Assuntos
Sobreviventes de Câncer/psicologia , Prostatectomia/psicologia , Neoplasias da Próstata/psicologia , Qualidade de Vida/psicologia , Procedimentos Cirúrgicos Robóticos/psicologia , Idoso , Seguimentos , Humanos , Laparoscopia/métodos , Masculino , Pessoa de Meia-Idade , Satisfação Pessoal , Estudos Prospectivos , Prostatectomia/métodos , Neoplasias da Próstata/cirurgia , Procedimentos Cirúrgicos Robóticos/estatística & dados numéricos
10.
Acta Oncol ; 57(8): 1025-1030, 2018 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-29447028

RESUMO

BACKGROUND AND PURPOSE: Traditionally, elastase has been used to study exocrine activity of the pancreas in patients with chronic pancreatitis and cystic fibrosis, and calprotectin as a marker for gut-wall inflammation in patients with inflammatory bowel disease. The aim of the study was to find out whether elastase and calprotectin could be used as inflammatory markers for radiation-induced gut wall injury of the distal bowel. MATERIAL AND METHODS: Adult male mice were exposed to two, three, or four fractions of 6 Gy or 8 Gy irradiation to the sigmoid and rectum of the large bowel, using a linear accelerator. Fecal samples were collected from mice at 1, 3, and 6 weeks post-irradiation. The fecal levels of elastase and calprotectin were analyzed using ELISA. RESULTS: Three and 6 weeks after irradiation, we found a dose-effect relationship between dose of ionizing radiation and the fecal level of elastase; that is significantly higher levels of elastase were observed in mice that had received a high irradiation dose. We also found that irradiated mice hosted in the same cage had a comparable level (either high or low) of elastase. No significant differences were observed from the calprotectin data. CONCLUSIONS: We found a clear association between the dose of ionizing radiation to the distal colon and the level of elastase in the fecal samples.


Assuntos
Biomarcadores/análise , Doenças Inflamatórias Intestinais/etiologia , Elastase Pancreática/análise , Radioterapia/efeitos adversos , Animais , Modelos Animais de Doenças , Fracionamento da Dose de Radiação , Fezes , Doenças Inflamatórias Intestinais/patologia , Complexo Antígeno L1 Leucocitário/análise , Masculino , Camundongos Endogâmicos C57BL
11.
Acta Oncol ; 57(10): 1352-1358, 2018 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-29733238

RESUMO

PURPOSE: To find out what organs and doses are most relevant for 'radiation-induced urgency syndrome' in order to derive the corresponding dose-response relationships as an aid for avoiding the syndrome in the future. MATERIAL AND METHODS: From a larger group of gynecological cancer survivors followed-up 2-14 years, we identified 98 whom had undergone external beam radiation therapy but not brachytherapy and not having a stoma. Of those survivors, 24 developed urgency syndrome. Based on the loading factor from a factor analysis, and symptom frequency, 15 symptoms were weighted together to a score interpreted as the intensity of radiation-induced urgency symptom. On reactivated dose plans, we contoured the small intestine, sigmoid colon and the rectum (separate from the anal-sphincter region) and we exported the dose-volume histograms for each survivor. Dose-response relationships from respective risk organ and urgency syndrome were estimated by fitting the data to the Probit, RS, LKB and gEUD models. RESULTS: The rectum and sigmoid colon have steep dose-response relationships for urgency syndrome for Probit, RS and LKB. The dose-response parameters for the rectum were D50: 51.3, 51.4, and 51.3 Gy, γ50 = 1.19 for all models, s was 7.0e-09 for RS and n was 9.9 × 107 for LKB. For Sigmoid colon, D50 were 51.6, 51.6, and 51.5 Gy, γ50 were 1.20, 1.25, and 1.27, s was 2.8 for RS and n was 0.079 for LKB. CONCLUSIONS: Primarily the dose to sigmoid colon as well as the rectum is related to urgency syndrome among gynecological cancer survivors. Separate delineation of the rectum and sigmoid colon in order to incorporate the dose-response results may aid in reduction of the incidence of the urgency syndrome.


Assuntos
Colo Sigmoide/efeitos da radiação , Neoplasias dos Genitais Femininos/radioterapia , Lesões por Radiação/etiologia , Reto/efeitos da radiação , Idoso , Relação Dose-Resposta à Radiação , Feminino , Humanos , Intestino Delgado/efeitos da radiação , Pessoa de Meia-Idade , Órgãos em Risco , Dosagem Radioterapêutica
12.
Support Care Cancer ; 26(5): 1665-1673, 2018 May.
Artigo em Inglês | MEDLINE | ID: mdl-29224177

RESUMO

BACKGROUND: Prostate-cancer diagnosis increases the risk for psychiatric morbidity and suicide. Thoughts about one's own death could indicate need for psychiatric care among men with localized prostate cancer. We studied the prevalence and predictors of thoughts about own death among men with prostate cancer. METHODS: Of the 3930 men in the prospective, multi-centre LAPPRO-trial, having radical prostatectomy, 3154 (80%) answered two study-specific questionnaires, before and three months after surgery. Multivariable prognostic models were built with stepwise regression and Bayesian Model Averaging. RESULTS: After surgery 46% had thoughts about their own death. Extra-prostatic tumor-growth [Adjusted Odds-Ratio 2.06, 95% Confidence Interval 1.66-2.56], university education [OR 1.66, CI 1.35-2.05], uncertainty [OR 2.20, CI 1.73-2.82], low control [OR 2.21, CI 1.68-2.91], loneliness [OR 1.75, CI 1.30-2.35], being a burden [OR 1.59, CI 1.23-2.07], and crying [OR 1.55, CI 1.23-1.96] before surgery predicted thoughts about one's own death after surgery. CONCLUSIONS: We identified predictors for thoughts about one's own death after prostate cancer diagnosis and surgery. These factors may facilitate the identification of psychiatric morbidity and those who might benefit from psychosocial support already during primary treatment.


Assuntos
Neoplasias da Próstata/psicologia , Adulto , Idoso , Morte , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Prospectivos , Neoplasias da Próstata/diagnóstico , Inquéritos e Questionários
13.
Psychooncology ; 26(11): 1749-1757, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-28027422

RESUMO

OBJECTIVE: Negative intrusive thoughts about one's prostate cancer have been associated with depressive mood and impaired quality of life among prostate cancer patients. However, little is known about possible predictors for negative intrusive thoughts among this group. We aimed to identify health- and care-related predictors for such thoughts among a population of men newly diagnosed with prostate cancer and undergoing radical prostatectomy. METHODS: In the LAPPRO-trial, 3154 men (80%) answered study-specific questionnaires at admission and 3 months after surgery. Questions concerned socio-demographics, health, uncertainty, preparedness for symptoms, and the outcome-negative intrusive thoughts. Associations between variables were analyzed by log-binominal and multivariable approach. RESULTS: The strongest predictor of negative intrusive thoughts at admission to surgery was uncertainty of cure, followed by binge drinking, poor physical health, antidepressant medication, not being prepared for urinary symptoms, age under 55, and physical pain. Reporting it not probable to obtain urinary symptoms after surgery lowered the odds. Negative intrusive thoughts before surgery were the strongest predictor for such thoughts 3 months later followed by uncertainty of cure, physical pain, younger age, living alone, and poor self-reported physical health. CONCLUSIONS: Our findings showed an association of preoperative uncertainty of cure as well as low preparedness for well-known surgery-induced symptoms with higher occurrence of negative intrusive thoughts about prostate cancer. Future studies should examine if interventions designed to have healthcare professionals inform patients about their upcoming prostatectomy reduce patients' negative intrusive thoughts and thereby, improve their psychological well-being.


Assuntos
Afeto , Neoplasias da Próstata/diagnóstico , Qualidade de Vida/psicologia , Adulto , Idoso , Humanos , Masculino , Pessoa de Meia-Idade , Dor/psicologia , Estudos Prospectivos , Prostatectomia , Neoplasias da Próstata/psicologia , Neoplasias da Próstata/cirurgia , Inquéritos e Questionários , Incerteza
14.
Psychooncology ; 26(5): 679-685, 2017 05.
Artigo em Inglês | MEDLINE | ID: mdl-27362448

RESUMO

OBJECTIVE: Informing the child about his/her diagnosis and treatment plan is essential; research has shown that it is related to the patient's quality of life and adherence to medication. METHODS: For 7 months during 2008 (February to September), 2 study-specific questionnaires were constructed and administered to 304 parents of children diagnosed with cancer at the Children's Cancer Hospital Egypt. RESULTS: Among the 313 eligible parents of children diagnosed with cancer, 304 (97%) answered the first questionnaire and 281 (92%) answered the second questionnaire. We found that nearly three-quarters (72%) of the parents had their child's cancer diagnosis communicated by the physician. Among the 72%, the rate of the children present with the parent or parents during the disease disclosure conversation was 39% (n = 85/219). The majority of the children were in the age group 5-18 years (55%). CONCLUSIONS: Our findings indicate that cancer disclosure at the Children's Cancer Hospital is to a certain degree common; yet even when disclosure does take place, it is mainly in the absence of the child. Moreover, the information provided during the conversation may not be fully comprehended by the parent or the child because of the physician's misleading use of terms when disclosing the disease. Therefore, better practice should be developed for disease disclosure, and proper communication should be established between the patients and the provider; patient autonomy should also have an influence in the clinical practice.


Assuntos
Comunicação , Neoplasias/psicologia , Pais/psicologia , Relações Profissional-Família , Revelação da Verdade , Adolescente , Institutos de Câncer , Criança , Egito , Feminino , Hospitais Pediátricos , Humanos , Masculino , Neoplasias/diagnóstico , Relações Pais-Filho , Qualidade de Vida , Inquéritos e Questionários
15.
Acta Oncol ; 56(5): 682-691, 2017 May.
Artigo em Inglês | MEDLINE | ID: mdl-28366105

RESUMO

BACKGROUND: It is unknown whether smoking; age at time of radiotherapy or time since radiotherapy influence the intensity of late radiation-induced bowel syndromes. MATERIAL AND METHODS: We have previously identified 28 symptoms decreasing bowel health among 623 gynecological-cancer survivors (three to twelve years after radiotherapy) and 344 matched population-based controls. The 28 symptoms were grouped into five separate late bowel syndromes through factor analysis. Here, we related possible predictors of bowel health to syndrome intensity, by combining factor analysis weights and symptom frequency on a person-incidence scale. RESULTS: A strong (p < .001) association between smoking and radiation-induced urgency syndrome was found with a syndrome intensity (normalized factor score) of 0.4 (never smoker), 1.2 (former smoker) and 2.5 (current smoker). Excessive gas discharge was also related to smoking (p = .001). Younger age at treatment resulted in a higher intensity, except for the leakage syndrome. For the urgency syndrome, intensity decreased with time since treatment. CONCLUSIONS: Smoking aggravates the radiation-induced urgency syndrome and excessive gas discharge syndrome. Smoking cessation may promote bowel health among gynecological-cancer survivors. Furthermore, by understanding the mechanism for the decline in urgency-syndrome intensity over time, we may identify new strategies for prevention and alleviation.


Assuntos
Sobreviventes de Câncer , Neoplasias dos Genitais Femininos/radioterapia , Intestinos/efeitos da radiação , Síndrome do Intestino Irritável/etiologia , Lesões por Radiação/etiologia , Radioterapia/efeitos adversos , Fumar Tabaco/efeitos adversos , Adolescente , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Estudos de Casos e Controles , Feminino , Seguimentos , Humanos , Intestinos/patologia , Masculino , Pessoa de Meia-Idade , Prognóstico , Adulto Jovem
16.
Acta Oncol ; 56(7): 984-990, 2017 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-28303734

RESUMO

BACKGROUND: We were interested in examining if there was a link between self-assessed emotional shock by prostate cancer diagnosis and psychological well-being at 3, 12, and 24 months after surgery. MATERIAL AND METHODS: Information was derived from patients participating in the LAPAroscopic Prostatectomy Robot Open (LAPPRO) trial, Sweden. We analyzed the association between self-assessed emotional shock upon diagnosis and psychological well-being by calculating odds ratios (ORs). RESULTS: A total of 2426 patients (75%) reported self-assessed emotional shock by the prostate cancer diagnosis. Median age of study participants was 63. There was an association between emotional shock and low psychological well-being after surgery: adjusted OR 1.7: (95% confidence interval [CI]), 1.4-2.1 at 3 months; adjusted OR 1.3: CI, 1.1-1.7 at 12 months, and adjusted OR 1.4: CI, 1.1-1.8 at 24 months. Among self-assessed emotionally shocked patients, low self-esteem, anxiety, and having no one to confide in were factors more strongly related with low psychological well-being over time. CONCLUSION: Experiencing self-assessed emotional shock by prostate cancer diagnosis may be associated with low psychological well-being for up to two years after surgery. Future research may address this high rate of self-assessed emotional shock after diagnosis with the aim to intervene to avoid this negative experience to become drawn out.


Assuntos
Ansiedade/psicologia , Emoções/fisiologia , Neoplasias da Próstata/diagnóstico , Neoplasias da Próstata/psicologia , Qualidade de Vida , Ansiedade/epidemiologia , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Prognóstico , Prostatectomia , Neoplasias da Próstata/cirurgia , Autoavaliação (Psicologia) , Inquéritos e Questionários , Suécia/epidemiologia
17.
Acta Oncol ; 55(11): 1285-1293, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-27173757

RESUMO

BACKGROUND: To analyze the relationship between mean radiation dose to the bowels and the anal-sphincter and occurrence of 'defecation into clothing without forewarning', a specific and serious fecal incontinence symptom after gynecological radiotherapy. Additional potential risk factors associated with the symptom are explored. MATERIAL AND METHODS: Data were collected for 519 eligible gynecological cancer survivors, treated with pelvic radiotherapy, with a median follow-up of 5.8 years, using a study-specific questionnaire and medical records. Correlations between defecation into clothing without forewarning and mean dose to organs at risk; the anal-sphincter region, the rectum, the sigmoid and the small intestines were investigated, also taking other risk factors into account. RESULTS: Twelve percent reported having had the symptom at least once in the preceding six months. Mean doses >50 Gy to the anal-sphincter region, the rectum, the sigmoid and the small intestines were related to the occurrence of the symptom. Significantly associated risk factors were deliveries with high birth weight, heart failure and lactose and/or gluten intolerance. After adjusting for these factors, mean doses >50 Gy to the anal-sphincter region, the sigmoid and the small intestines remained related to the occurrence of the symptom. CONCLUSION: Mean doses to the bowels and anal-sphincter region are related to the risk of defecation into clothing without forewarning in long-term gynecological cancer survivors treated with pelvic radiotherapy. Further radiobiological modeling may distinguish which organ(s) contribute most to development of the symptom.


Assuntos
Incontinência Fecal/etiologia , Neoplasias dos Genitais Femininos/radioterapia , Dosagem Radioterapêutica , Radioterapia/efeitos adversos , Adulto , Idoso , Canal Anal/efeitos da radiação , Braquiterapia/efeitos adversos , Colo Sigmoide/efeitos dos fármacos , Feminino , Neoplasias dos Genitais Femininos/complicações , Humanos , Pessoa de Meia-Idade , Análise Multivariada , Órgãos em Risco , Reto/efeitos dos fármacos , Fatores de Risco , Inquéritos e Questionários , Sobreviventes
18.
J Urol ; 193(1): 117-25, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25158271

RESUMO

PURPOSE: Lymph node dissection in patients with prostate cancer may increase complications. An association of lymph node dissection with thromboembolic events was suggested. We compared the incidence and investigated predictors of deep venous thrombosis and pulmonary embolism among other complications in patients who did or did not undergo lymph node dissection during open and robot-assisted laparoscopic radical prostatectomy. MATERIALS AND METHODS: Included in study were 3,544 patients between 2008 and 2011. The cohort was derived from LAPPRO, a multicenter, prospective, controlled trial. Data on adverse events were extracted from patient completed questionnaires. Our primary study outcome was the prevalence of deep venous thrombosis and/or pulmonary embolism. Secondary outcomes were other types of 90-day adverse events and causes of hospital readmission. RESULTS: Lymph node dissection was performed in 547 patients (15.4%). It was associated with eightfold and sixfold greater risk of deep venous thrombosis and pulmonary embolism events compared to that in patients without lymph node dissection (RR 7.80, 95% CI 3.51-17.32 and 6.29, 95% CI 2.11-18.73, respectively). Factors predictive of thromboembolic events included a history of thrombosis, pT4 stage and Gleason score 8 or greater. Open radical prostatectomy and lymph node dissection carried a higher risk of deep venous thrombosis and/or pulmonary embolism than robot-assisted laparoscopic radical prostatectomy (RR 12.67, 95% CI 5.05-31.77 vs 7.52, 95% CI 2.84-19.88). In patients without lymph node dissection open radical prostatectomy increased the thromboembolic risk 3.8-fold (95% CI 1.42-9.99) compared to robot-assisted laparoscopic radical prostatectomy. Lymph node dissection induced more wound, respiratory, cardiovascular and neuromusculoskeletal events. It also caused more readmissions than no lymph node dissection (14.6% vs 6.3%). CONCLUSIONS: Among other adverse events we found that lymph node dissection during radical prostatectomy increased the incidence of deep venous thrombosis and pulmonary embolism. Open surgery increased the risks more than robot-assisted surgery. This was most prominent in patients who were not treated with lymph node dissection.


Assuntos
Prostatectomia/efeitos adversos , Tromboembolia/etiologia , Adulto , Idoso , Humanos , Excisão de Linfonodo , Masculino , Pessoa de Meia-Idade , Prostatectomia/métodos , Procedimentos Cirúrgicos Robóticos/efeitos adversos
19.
Acta Oncol ; 54(5): 772-9, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25761090

RESUMO

PURPOSE: The purpose of this study was to examine whether or not vaginal elasticity or lack of lubrication is associated with deep or superficial dyspareunia. We investigated gynecological cancer survivors treated with radiation therapy. METHODS: In a population-based study with 616 women answering a questionnaire (participation rate 78%) and who were treated with radiotherapy for gynecological cancer, we analyzed information from 243 women (39%) who reported that they had had intercourse during the previous six months. Analyses included log-binomial regression (relative risks) and multiple imputations by chained equations in combination with Bayesian Model Averaging, yielding a posterior probability value. Age range of this cancer recurrent-free group of women was 29-80. RESULTS: Dyspareunia affected 164 of 243 of the women (67%). One hundred thirty-four women (55%) reported superficial pain, 97 women (40%) reported deep pain, and 87 women (36%) reported both types of dyspareunia. The relative risk (RR) of deep dyspareunia was 1.87 (CI 1.41-2.49) with impaired vaginal elasticity compared to normal vaginal elasticity. Age and lower abdominal swelling were separate risk factors for deep dyspareunia. However, effects remain after adjusting for these factors. CONCLUSION: The relative risk of deep dyspareunia was almost twice as high with impaired vaginal elasticity compared to normal vaginal elasticity. If we wish to treat or even prevent deep dyspareunia in women with gynecological cancer, we may use our knowledge of the pathophysiology of deep dyspareunia and increasingly provide dilators together with instructions on how to use them for stretching exercises in order to retain vaginal elasticity. Results highlight the need for studies with more precise questions distinguishing superficial from deep dyspareunia so that in the future we may be able to primarily try to avoid reduced vaginal elasticity and secondarily reduce the symptoms.


Assuntos
Dispareunia/epidemiologia , Elasticidade/efeitos da radiação , Neoplasias dos Genitais Femininos/radioterapia , Lesões por Radiação/complicações , Sobreviventes , Vagina/efeitos da radiação , Adulto , Idoso , Teorema de Bayes , Coito , Dispareunia/etiologia , Elasticidade/fisiologia , Feminino , Humanos , Pessoa de Meia-Idade , Lesões por Radiação/epidemiologia , Lesões por Radiação/fisiopatologia , Análise de Regressão , Risco , Inquéritos e Questionários , Fatores de Tempo , Vagina/metabolismo , Vagina/fisiopatologia
20.
Acta Oncol ; 53(3): 378-84, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24125102

RESUMO

PURPOSE: To study if partnership modifies the effect of gastrointestinal symptoms on quality of life after radiation therapy for prostate cancer. MATERIAL AND METHODS: Using a study-specific questionnaire we conducted a cross-sectional follow-up of the occurrence gastrointestinal symptoms and quality of life after radiation therapy for prostate cancer. We obtained information from 874 prostate cancer survivors treated with radiation therapy at the Sahlgrenska University Hospital, Sweden between 1994 and 2006. In this paper we describe how partnership status affects the association between gastrointestinal symptoms and quality of life. RESULTS: We found that unpartnered men with gastrointestinal symptoms reported a lower quality of life than unpartnered men without such symptoms. Unpartnered men with symptoms had an excess risk of low quality of life compared with unpartnered men without symptoms for those experiencing altered composition of stools, prevalence ratio 3.8 (95% CI 1.1-13.1), leakage, 3.6 (1.3-10.1), sensory bowel symptoms, 4.5 (1.6-12.8), and for urgency, 4.2 (1.2-15.1). We also found that unpartnered men with symptoms had an excess risk of low quality of life compared with partnered men with symptoms for those experiencing altered composition of stools, prevalence ratio 2.9 (95% CI 1.4-5.8), leakage 2.8 (1.2-6.4), sensory bowel symptoms 3.4 (1.5-7.4), urgency 2.6 (1.2-5.8), and for any gastrointestinal symptom 2.5 (1.3-4.9). CONCLUSION: Unpartnered men may represent a group that is specifically vulnerable to the distressful effects of gastrointestinal symptoms after radiation therapy for prostate cancer.


Assuntos
Gastroenteropatias/etiologia , Gastroenteropatias/psicologia , Neoplasias da Próstata/psicologia , Neoplasias da Próstata/radioterapia , Qualidade de Vida , Radioterapia/efeitos adversos , Idoso , Idoso de 80 Anos ou mais , Estudos Transversais , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Pessoa Solteira , Inquéritos e Questionários , Sobreviventes , Suécia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA