40 research outputs found

    Muscle invasive bladder cancer treated by transurethral resection, followed by external beam radiation and interstitial iridium-192

    Get PDF
    Purpose: To evaluate the results of transurethral resection (TUR), external beam radiotherapy (EBRT), and interstitial radiation (IRT) with iridium-192, using the afterloading technique in patients with muscle invasive bladder cancer. Methods and Materials: From May 1989 until September 1995. 66 patients with primary, solitary muscle invasive bladder cancer were treated with TUR, EBRT, and IRT, aiming at bladder preservation. According to the protocol, in three patients low-dose EBRT was applied, whereas 63 patients received high-dose EBRT. Immediately prior to IRT, 42 patients underwent a lymphnode dissection, and in 16 cases a partial cystectomy was performed. For IRT, two to five catheters were used and IRT was started within 24 h after surgery. The majority of patients received 30 Gy of IRT, with a mean dose rate of .58 Gy/h. In three patients, additional EBRT was applied following IRT. Follow-up consisted of regular cystoscopies, mostly done during joint clinics of urologist and radiation oncologist, with urine cytology routinely performed. The median follow-up period was 26 months. The Kaplan-Meier method was used for the determination of survival rates. Results: In seven patients, a bladder relapse developed. The probability of remaining bladder relapse free at 5 years was 88%. The bladder was preserved in 98% of the surviving patients. Metastases developed in 16 patients, and the probability of remaining metastasis free at 5 years was 66%. The cumulative 5-year overall and bladder and distant relapse free survival were 48% and 69%, respectively. Acute toxicity was not serious in the majority of cases; surgical correction of a persisting vesicocutaneous fistula was necessary in two patients, whereas a wound toilet had to be performed in another patient. Serious late toxicity (bladder, RTOG Grade 31 was experienced by only one patient. Conclusions: Interstitial radiation preceded by TUR and EBRT, in a selected group of patients with muscle invasive bladder cancer, yields an excellent bladder tumor control rate with a high probability of bladder preservation. Survival was mainly dependent on the development of distant metastases. Serious acute and late toxicity was rare

    Prevalence and Prognostic Impact of Pathogenic Variants in Patients With Dilated Cardiomyopathy Referred for Ventricular Tachycardia Ablation

    Get PDF
    OBJECTIVES This study aimed to assess the frequency of (likely) pathogenic variants (LP/Pv) among dilated cardiomyopathy (DCM) ventricular tachycardia (VT) patients referred for CA and their impact on procedural outcome and long-term prognosis. BACKGROUND The prevalence of genetic variants associated with monomorphic VT among DCM is unknown. METHODS Ninety-eight consecutive patients (age 56 +/- 15 years; 84% men, left ventricular ejection fraction [LVEF] 39 12%) referred for DCM-VT ablation were included. Patients underwent electroanatomical mapping and testing of >= 55 cardiomyopathy-related genes. Mapping data were analyzed for low-voltage areas and abnormal potentials. LP/Pv-positive (LP/Pv+) patients were compared with LP/Pv-negative (LP/Pv-) patients and followed for VT recurrence and mortality. RESULTS In 37 (38%) patients, LP/Pv were identified, most frequently LMNA (n = 11 of 37, [30%]), 17N (n = 6 of 37, [16%]), PLN (n = 6 of 37, [16%]), SCN5A (n = 3 of 37, [8%]), RBM20 (n = 2 of 37, [5%]) and DSP (n = 2 of 37, [5%]). LP/Pv+ carriers had tower LVEF (35 + 13% vs. LP/Pv-: 42 11%; p 0.005) and were less often men (n 27 [73%] vs. n 55 [90%] p 0.03). After a median follow-up of 2.4 years (interquartile range: 0.9 to 4.4 years), 63 (64%) patients had VT recurrence (LP/Pv+: 30 of 37 [81%] vs. LP/Pv-: 33 of 61 [54%]; p = 0.007). Twenty-eight patients (29%) died (LP/Pv +: 19 of 37 [51%] vs. LP/Pv-: 9 of 61 [15%]; p <0.001). The cumulative 2-year VT-free survival was 41% in the total cohort (LP/Pv+: 16% vs. LP/Pv-: 54%; p 0.001). The presence of LP/Pv (hazard ratio: 1.9; 95% confidence interval: 1.1 to 3.4; p = 0.02) and unipolar low-voltage area size/cm(2) increase (hazard ratio: 2.5; 95% confidence interval: 1.6 to 4.0; p <0.001) were associated with a decreased 2-year VT-free survival. CONCLUSIONS In patients with DCM-VT, a genetic cause is frequently identified. LP/Pv+ patients have a tower LVEF and more extensive VT substrates, which, in combination with disease progression, may contribute to the poor prognosis. Genetic testing in patients with DCM-VT should therefore be recommended. (C) 2020 by the American College of Cardiology Foundation

    MASked-unconTrolled hypERtension management based on office BP or on ambulatory blood pressure measurement (MASTER) Study: a randomised controlled trial protocol.

    Get PDF
    Masked uncontrolled hypertension (MUCH) carries an increased risk of cardiovascular (CV) complications and can be identified through combined use of office (O) and ambulatory (A) blood pressure (BP) monitoring (M) in treated patients. However, it is still debated whether the information carried by ABPM should be considered for MUCH management. Aim of the MASked-unconTrolled hypERtension management based on OBP or on ambulatory blood pressure measurement (MASTER) Study is to assess the impact on outcome of MUCH management based on OBPM or ABPM

    The role of identity in cross-organizational engineering projects: the case of Dutch military engineers in Mazar e Sjarif Afghanistan

    No full text
    There is a rise in the use of global and cross-organizational teams in engineering projects, consequently issues such as team coherence and commitment have gained growing attention in engineering literature and practice (Davies & Hobday, 2005). Creating effective cooperation in project teams which consist of individuals from various countries, organizations and with various expertises is difficult. Apparently, merely placing people together does not create an effective team (Salas, Burke & Cannon-Bowers, 2000; Ruiz Ulloa & Adams, 2004) as both organizations and the individuals working in these organizations have their own subset of goals, norms, jargon, modus of operandi and culture. Research in social and organizational psychology and management shows that identification with the own team or organization can strongly influence the cooperation processes between teams, through in-group versus out-group feelings (De Drue & van Vianen, 2001; Williams, 2001; Chatman et al., 1998). However, there is still little insight in how organization identity changes within international and cross-organizational military engineering teams. For the purpose of gaining more insight in this issue, we undertook a longitudinal exploratory case study of individuals who were part of a cross-organizational military engineering projects which was deployed to Mazar-e Sjarif (MeS) in Afghanistan. The case study showed a change in the strength of various identities of these individuals during the project. Additionally a workshop was organized to explore possible factors which affect changes in identity strength. After analyzing the results of this workshop six variables were indicated, these are: having negative feelings, knowledge of one another, working towards the same goal, duration of a mission, being ‘stuck’ in the same situation and whether or not one feels a personal connection with the people in the group
    corecore