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Leonard Secher posted an update a month ago
BACKGROUND The objective of this study was to evaluate the safety and efficacy of transcatheter closure of ventricular septal defects (VSD) using the LifeTech™ multifunctional occluder device (MF-Konar). METHODS Clinical features and demographic characteristics and follow-up findings were evaluated retrospectively from three centers. RESULTS MF-Konar was used in 98 patients. The median age and weight of the patients were 3.8 years (range 5.4 months-50 years) and 15.3 kg (range 5.5-80 kg), respectively. The mean fluoroscopy time was 13.7 ± 8.2 min (range 3.4-42.6 min). Procedural success was obtained for 96 out of 98 patients (98%). In 54 out of 98 patients, closure was performed via the antegrade route. Major complications occurred in four patients (embolization in two, complete heart block in one, and device dislocation needing surgical treatment in one). All of the complications were treated successfully, and there was no mortality. Mild residual flow in eight patients (8%), new onset tricuspid valve insufficiency in one (moderate), and new onset aortic valve insufficiency in one (mild) were observed during a mean follow-up duration of 224 ± 149 (10-515) days. Minor rhythm disturbances were observed in eight patients. CONCLUSIONS Transcatheter closure of VSDs in selected patients using the LifeTech MF-Konar device seems effective. Its advantages are softer design, use of both an antegrade and retrograde approach, and an advanced smaller delivery system. Increasing the number of usage and the experience will provide more accurate data and low complication rates. BACKGROUND Cardiac sarcoidosis (CS) is a challenging diagnosis. Patients may progress to end-stage congestive heart failure and require cardiac transplantation without ever having been diagnosed. Characteristics and outcomes of patients with granulomas in the explanted hearts are unknown. METHODS All French heart transplantation centers were contacted to participate in the study. Each center searched through local databases for the cases of non-caseating granuloma in the explanted hearts between 2000 and 2017. Data before and after transplantation were recorded from medical charts. Survival of CS and all- cause heart transplantation patients were compared. RESULTS Fifteen patients (10 men, 5 women) received a diagnosis of CS based on pathologic data of the explanted heart and were recruited for the study. All patients were diagnosed as non-ischemic dilated or hypertrophic cardiomyopathy and presented congestive heart failure. Eight patients (53%) had ventricular rhythm disturbances, and 3 (20%) a complete heart block. Ten out of 13 patients (77%) had extracardiac radiological signs compatible with sarcoidosis on chest computed tomography (CT) scans. One patient died 3 months after transplantation from infectious complications. The 14 remaining patients were still alive at the end of the study (median follow-up of 28.8 months). One patient had a second heart transplantation 5 years later because of chronic allograft vasculopathy. One patient presented a relapse of CS confirmed by myocardial biopsies 9 years after transplantation, requiring an escalation of immunosuppressive therapy. CONCLUSION CS may be undiagnosed before heart transplantation. In 77% of cases, sarcoidosis could have been detected before transplantation with non-invasive imaging techniques. V.BACKGROUND Hypertrophic cardiomyopathy is a heterogeneous disease in which an implantable cardioverter defibrillator (ICD) effectively prevents sudden cardiac death in at-risk individuals. Nevertheless, the cost-effectiveness of ICDs in this specific patient group has not been evaluated. METHODS A Markov cohort model was constructed to simulate the course of identified adult persons with hypertrophic cardiomyopathy with and without an ICD over the course of 12 years based on Swedish disease-specific unit costs. The age distribution was based on empirical data from the nationwide cohort of HCM patients with ICDs (mean age at the time of implant was 51.8 years). The outcomes were costs per saved life and cost per gained quality adjusted life year (QALY). RESULTS Of 1000 simulated patients, 402 lives were saved after 12 years with an ICD at a cost of 646,000 Swedish krona (SEK), which corresponds to 57,118 Euro per saved life from the health care sector viewpoint. The cost per gained QALY (the incremental cost effectiveness ratio (ICER)) was 171,000 SEK (15,119 Euro). From a societal viewpoint, including effects on productivity losses, the use of an ICD was absolutely dominant (both cheaper and better, and thus an ICER is of no interest). Both the one-way sensitivity analyses and the probabilistic sensitivity analyses supported the findings in the base option. CONCLUSION For identified patients with hypertrophic cardiomyopathy deemed at high risk of sudden cardiac death, the use of an ICD is extremely cost effective, both in terms of the cost for saved lives and gained QALY. PURPOSE To compare the dosimetric characteristics of helical tomotherapy (HT), volumetric-modulated arc therapy (VMAT), intensity-modulated radiotherapy (IMRT), and tangential field-in-field technique (FIF) for the treatment of synchronous bilateral breast cancer (SBBC). METHODS AND MATERIALS Ten patients with early-stage unilateral breast cancer were selected for simulating the patients with SBBC in this retrospective analysis. Treatment plans with HT, VMAT, IMRT, and FIF were generated for each patient with a total dose of 50.4 Gy in 28 fractions to the target. Plan quality, namely conformity index (CI), homogeneity index (HI), dose-volume statistics of organs at risk (OARs), and beam-on time (BOT), were evaluated. RESULTS HT plans showed a lower mean heart dose (3.53 ± 0.31Gy) compared with the other plans (VMAT = 5.6 ± 1.36 Gy, IMRT = 3.80 ± 0.76 Gy, and FIF = 4.84 ± 2.13 Gy). Moreover, HT plans showed a significantly lower mean lung dose (p less then 0.01) compared with the other plans mean right lung doses were 6.81 ± 0.67, 10.32 ± 1.04, 9.07 ± 1.21, and 10.03 ± 1.22 Gy and mean left lung doses were 6.33 ± 0.87, 8.82 ± 0.91, 7.84 ± 1.07, and 8.64 ± 0.99 Gy for HT, VMAT, IMRT, and FIF plans, respectively. The mean dose to the left anterior descending artery was significantly lower in HT plans (p less then 0.01) than in the other plans HT = 19.41 ± 0.51 Gy, VMAT = 25.77 ± 7.23 Gy, IMRT = 27.87 ± 6.48 Gy, and FIF = 30.95 ± 10.17 Gy. FIF plans showed a worse CI and HI compared with the other plans. VMAT plans showed shorter BOT (average, 3.9 ± 0.2 minutes) than did HT (average, 11.0 ± 3.0 minutes), IMRT (average, 6.1 ± 0.5 minutes), and FIF (average, 4.6 ± 0.7 minutes) plans. CONCLUSIONS In a dosimetric comparison for SBBC, HT provided the most favorable dose sparing of OARs. Rapamycin However, HT with longer BOT may increase patient discomfort and treatment uncertainty. VMAT enabled shorter BOT with acceptable doses to OARs and had a better CI than did FIF and IMRT.