keyword
MENU ▼
Read by QxMD icon Read
search

CRT P, CRT D

keyword
https://www.readbyqxmd.com/read/28104669/sex-specific-outcomes-with-addition-of-defibrillation-to-resynchronisation-therapy-in-patients-with-heart-failure
#1
Sérgio Barra, Rui Providência, Rudolf Duehmke, Serge Boveda, Eloi Marijon, Christian Reitan, Rasmus Borgquist, Didier Klug, Pascal Defaye, Nicolas Sadoul, Jean-Claude Deharo, Iannish Sadien, Kiran Patel, Khang-Li Looi, David Begley, Anthony W Chow, Jean-Yves Le Heuzey, Sharad Agarwal
OBJECTIVE: Among primary prevention patients with heart failure receiving cardiac resynchronisation therapy (CRT), the impact of additional implantable cardioverter defibrillator (ICD) treatment on outcomes and its interaction with sex remains uncertain. We aim to assess whether the addition of the ICD functionality to CRT devices offers a more pronounced survival benefit in men compared with women, as previous research has suggested. METHODS: Observational multicentre cohort study of 5307 consecutive patients with ischaemic or non-ischaemic dilated cardiomyopathy and no history of sustained ventricular arrhythmias having CRT implantation with (cardiac resynchronisation therapy defibrillator (CRT-D), n=4037) or without (cardiac resynchronisation therapy pacemaker (CRT-P), n=1270) defibrillator functionality...
January 19, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28094171/the-relationship-of-cognitive-improvement-after-cognitive-remediation-with-social-functioning-in-patients-with-schizophrenia-and-severe-cognitive-deficits
#2
J P Lindenmayer, Samantha Fregenti, Guoxin Kang, Veronica Ozog, Isidora Ljuri, Anzalee Khan, A Goldring, Susan R McGurk
BACKGROUND: This study aims to examine the effects of change in neurocognition on functional outcomes and to examine predictors of change in social functions following a 12-week course of cognitive remediation in patients with schizophrenia and schizoaffective disorder with severe cognitive impairments. METHOD: Level of social functioning was assessed using a performance based measure of functional capacity (PSP) in patients prior to and after the completion of 12-week cognitive remediation treatment (CRT)...
January 13, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28068240/does-unintentional-splenic-radiation-predict-outcomes-after-pancreatic-cancer-radiation-therapy
#3
Awalpreet S Chadha, Guan Liu, Hsiang-Chun Chen, Prajnan Das, Bruce D Minsky, Usama Mahmood, Marc E Delclos, Yelin Suh, Gabriel O Sawakuchi, Sam Beddar, Matthew H Katz, Jason B Fleming, Milind M Javle, Gauri R Varadhachary, Robert A Wolff, Christopher H Crane, Xuemei Wang, Howard Thames, Sunil Krishnan
PURPOSE: To determine whether severity of lymphopenia is dependent on radiation dose and fractional volume of spleen irradiated unintentionally during definitive chemoradiation (CRT) in patients with locally advanced pancreatic cancer (LAPC). METHODS: 177 patients with LAPC received induction chemotherapy (mainly gemcitabine-based regimens) followed by CRT (median 50.4 Gy with concurrent capecitabine) from January 2006 to December 2012. Absolute lymphocyte count (ALC) was recorded at baseline, before CRT, and 2 to 10 weeks after CRT...
February 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28065904/increasing-sex-differences-in-the-use-of-cardiac-resynchronization-therapy-with-or-without-implantable-cardioverter-defibrillator
#4
Neal A Chatterjee, Rasmus Borgquist, Yuchiao Chang, Jennifer Lewey, Vicki A Jackson, Jagmeet P Singh, Joshua P Metlay, Charlotta Lindvall
AIMS: Previous studies have identified sex disparities in the use of cardiac resynchronization therapy (CRT) and implantable cardioverter defibrillators (ICD), although the basis of underutilization in women remains poorly understood. The aim of this study was to assess sex differences in patterns of CRT use with our without ICD. METHODS AND RESULTS: In this cross-sectional study using the National Inpatient Sample database we identified 311 009 patients undergoing CRT implantation in the United States between 2006 and 2012...
January 8, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28048091/su-f-r-50-radiation-induced-changes-in-ct-number-histogram-during-chemoradiation-therapy-for-pancreatic-cancer
#5
X Chen, D Schott, Y Song, D Li, W Hall, B Erickson, X Li
PURPOSE: In an effort of early assessment of treatment response, we investigate radiation induced changes in CT number histogram of GTV during the delivery of chemoradiation therapy (CRT) for pancreatic cancer. METHODS: Diagnostic-quality CT data acquired daily during routine CT-guided CRT using a CT-on-rails for 20 pancreatic head cancer patients were analyzed. All patients were treated with a radiation dose of 50.4 in 28 fractions. On each daily CT set, the contours of the pancreatic head and the spinal cord were delineated...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047739/su-d-207b-07-development-of-a-ct-radiomics-based-early-response-prediction-model-during-delivery-of-chemoradiation-therapy-for-pancreatic-cancer
#6
S Klawikowski, J Christian, D Schott, M Zhang, X Li
PURPOSE: Pilot study developing a CT-texture based model for early assessment of treatment response during the delivery of chemoradiation therapy (CRT) for pancreatic cancer. METHODS: Daily CT data acquired for 24 pancreatic head cancer patients using CT-on-rails, during the routine CT-guided CRT delivery with a radiation dose of 50.4 Gy in 28 fractions, were analyzed. The pancreas head was contoured on each daily CT. Texture analysis was performed within the pancreas head contour using a research tool (IBEX)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047611/su-f-r-48-early-prediction-of-pathological-response-of-locally-advanced-rectal-cancer-using-perfusion-ct-a-prospective-clinical-study
#7
K Nie, L Shi, N Yue, S Jabbour, S Kim, T Mao, L Qian, X Hu, X Sun, T Niu
PURPOSE: To prospectively evaluate the tumor vascularity assessed by perfusion CT for prediction of chemo-radiation treatment (CRT) response in locally advanced rectal cancer (LARC). METHODS: Eighteen consecutive patients (61.9±8.8 years, from March-June 2015) diagnosed with LARC who underwent 6-8 weeks CRT followed by surgery were included. The pre-treatment perfusion CT was acquired after a 5s delay of contrast agent injection for 45s with 1s interval. A total of 7-cm craniocaudal range covered the tumor region with 3-mm slice thickness...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046990/su-d-202-03-statistical-segmentation-on-quantitative-ct-for-assessing-spatial-tumor-response-during-radiation-therapy-delivery
#8
D Schott, T Schmidt, X Chen, S Klawikowski, G Noid, E Dalah, X Li
PURPOSE: Develop a method to segment regions of interest (ROIs) in tumor with statistically similar Hounsfield unit (HU) values and/or HU changes during chemoradiation therapy (CRT) delivery, to assess spatial tumor treatment response based on daily CTs during CRT delivery. METHODS: Generate a three region map of ROIs with differential HUs, by sampling neighboring voxels around a selected voxel and comparing to the mean of the entire ROI using a t-test. The cumulative distribution function, P, is calculated from the t-test...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046776/su-f-j-207-non-small-cell-lung-cancer-patient-survival-prediction-with-quantitative-tumor-textures-analysis-in-baseline-ct
#9
Y Wu, J Zou, P Murillo, J Nosher, J Amorosa, M Bramwit, N Yue, S Jabbour, D Foran
PURPOSE: Chemo-radiation therapy (CRT) is widely used in treating patients with locally advanced non-small cell lung cancer (NSCLC). Determination of the likelihood of patient response to treatment and optimization of treatment regime is of clinical significance. Up to date, no imaging biomarker has reliably correlated to NSCLC patient survival rate. This pilot study is to extract CT texture information from tumor regions for patient survival prediction. METHODS: Thirteen patients with stage II-III NSCLC were treated using CRT with a median dose of 6210 cGy...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046283/su-f-r-04-radiomics-for-survival-prediction-in-glioblastoma-gbm
#10
H Zhang, J Molitoris, S Tan, I Giacomelli, D Scartoni, C Gzell, N Bhooshan, W Choi, W Lu, M Mehta, W D'Souza
PURPOSE: To develop a quantitative radiomics approach for survival prediction of glioblastoma (GBM) patients treated with chemoradiotherapy (CRT). METHODS: 28 GBM patients who received CRT at our institution were retrospectively studied. 255 radiomic features were extracted from 3 gadolinium-enhanced T1 weighted MRIs for 2 regions of interest (ROIs) (the surgical cavity and its surrounding enhancement rim). The 3 MRIs were at pre-treatment, 1-month and 3-month post-CRT...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28045413/vitamin-d-levels-predict-the-response-to-cardiac-resynchronization-therapy-in-patients-with-systolic-heart-failure
#11
Hamza Sunman, Adem Özkan, Hikmet Yorgun, Uğur Canpolat, Naresh Maharjan, Serkan Asil, Ergün Barış Kaya, Tülin Bayrak, Lale Tokgözoğlu, Asuman Özkara, Kudret Aytemir, Ali Oto
OBJECTIVE: The aim of this study was to examine the relationship between vitamin D levels in patients with heart failure (HF) and response to cardiac resynchronization therapy (CRT). METHODS: We studied 57 patients (mean age: 60.47±13.09 years) with New York Heart Association Class II or III heart failure, QRS duration ?120 milliseconds, and ejection fraction <35% (mean: 27.1±4.4%) who underwent CRT. All patients were taking optimal medical treatment for HF...
December 2016: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28034064/impact-of-intensity-modulated-radiation-therapy-technique-for-locally-advanced-non-small-cell-lung-cancer-a-secondary-analysis-of-the-nrg-oncology-rtog-0617-randomized-clinical-trial
#12
Stephen G Chun, Chen Hu, Hak Choy, Ritsuko U Komaki, Robert D Timmerman, Steven E Schild, Jeffrey A Bogart, Michael C Dobelbower, Walter Bosch, James M Galvin, Vivek S Kavadi, Samir Narayan, Puneeth Iyengar, Clifford G Robinson, Raymond B Wynn, Adam Raben, Mark E Augspurger, Robert M MacRae, Rebecca Paulus, Jeffrey D Bradley
Purpose Although intensity-modulated radiation therapy (IMRT) is increasingly used to treat locally advanced non-small-cell lung cancer (NSCLC), IMRT and three-dimensional conformal external beam radiation therapy (3D-CRT) have not been compared prospectively. This study compares 3D-CRT and IMRT outcomes for locally advanced NSCLC in a large prospective clinical trial. Patients and Methods A secondary analysis was performed to compare IMRT with 3D-CRT in NRG Oncology clinical trial RTOG 0617, in which patients received concurrent chemotherapy of carboplatin and paclitaxel with or without cetuximab, and 60- versus 74-Gy radiation doses...
January 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28031276/patients-upgraded-to-cardiac-resynchronization-therapy-due-to-pacing-induced-cardiomyopathy-are-at-low-risk-of-life-threatening-ventricular-arrhythmias-a-long-term-cause-of-death-analysis
#13
Sergio Barra, Rudolf Duehmke, Rui Providencia, Eloi Marijon, Serge Boveda, Munmohan Virdee, Patrick Heck, Simon Fynn, David Begley, Andrew Grace, Sharad Agarwal
AIMS: Upgrade to cardiac resynchronization therapy (CRT) should be offered to patients who have developed pacing-induced cardiomyopathy with conventional right ventricular pacing. The extent to which these patients would also benefit from defibrillator back-up at the time of CRT upgrade is, however, unknown. METHODS AND RESULTS: Retrospective observational cohort study of 199 patients with pacing-induced cardiomyopathy and no history of sustained ventricular arrhythmia, including 104 upgraded to CRT-Pacemaker (CRT-P) and 95 upgraded to CRT-Defibrillator (CRT-D)...
December 28, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28011837/non-invasive-model-based-measures-of-ventricular-electrical-dyssynchrony-for-predicting-crt-outcomes
#14
Christopher T Villongco, David E Krummen, Jeffrey H Omens, Andrew D McCulloch
AIMS: Left ventricular activation delay due to left bundle branch block (LBBB) is an important determinant of the severity of dyssynchronous heart failure (DHF). We investigated whether patient-specific computational models constructed from non-invasive measurements can provide measures of baseline dyssynchrony and its reduction after CRT that may explain the degree of long-term reverse ventricular remodelling. METHODS AND RESULTS: LV end-systolic volume reduction (ΔESVLV) measured by 2D trans-thoracic echocardiography in eight patients following 6 months of CRT was significantly (P < 0...
December 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28011796/cardiac-resynchronization-therapy-in-patients-with-end-stage-hypertrophic-cardiomyopathy
#15
Ammar M Killu, Jae-Yoon Park, Jaskanwal D Sara, David O Hodge, Bernard J Gersh, Rick A Nishimura, Samuel J Asirvatham, Christopher J McLeod
AIMS: A dilated/end-stage phase of hypertrophic cardiomyopathy (HCM) is rare but well-recognized. The role for cardiac resynchronization therapy (CRT) in this subset of patients remains unexplored. We aimed to clarify the impact of bi-ventricular pacing CRT in dilated/end-stage HCM. METHODS AND RESULTS: The Mayo Clinic HCM database was interrogated to identify patients with ejection fraction (EF) <50% and CRT. Control subjects were identified in 1:1 manner...
December 23, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28011795/cardiac-resynchronization-therapy-crt-device-replacement-considerations-upgrade-or-downgrade-a-complex-decision-in-the-current-clinical-setting
#16
REVIEW
Eleni S Nakou, Emmanuel N Simantirakis, Eleftherios M Kallergis, Konstantinos S Nakos, Panos E Vardas
There are limited data about the management of patients presenting for elective generator replacements in the setting of previously implanted cardiac resynchronization therapy (CRT) devices that are nearing end-of-life. The individual patient's clinical status and concomitant morbidities may evolve so that considerations may include not only replacement of the pulse generator, but also potentially changing the type of device [e.g. downgrading CRT-defibrillator (CRT-D) to CRT-pacemaker (CRT-P) or ICD or upgrading of CRT-P to CRT-D]...
December 23, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28004138/investigation-of-volumetric-apparent-diffusion-coefficient-histogram-analysis-for-assessing-complete-response-and-clinical-outcomes-following-pre-operative-chemoradiation-treatment-for-rectal-carcinoma
#17
Vijay Chidambaram, James D Brierley, Bernard Cummings, Rajesh Bhayana, Ravi J Menezes, Erin D Kennedy, Richard Kirsch, Kartik S Jhaveri
PURPOSE: To investigate the relationship of pre-treatment volumetric apparent diffusion coefficient (ADC) histogram parameters with post-operative histopathologic treatment response and clinical outcomes following pre-operative chemoradiation treatment (CRT) in rectal cancer. MATERIALS AND METHODS: In a Health Insurance Portability and Accountability Act compliant retrospective study, 78 rectal cancer patients treated with pre-operative CRT and rectal MRI were included...
December 21, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/28003221/regional-longitudinal-deformation-improves-prediction-of-ventricular-tachyarrhythmias-in-patients-with-heart-failure-with-reduced-ejection-fraction-a-madit-crt-substudy-multicenter-automatic-defibrillator-implantation-trial-cardiac-resynchronization-therapy
#18
Tor Biering-Sørensen, Dorit Knappe, Anne-Catherine Pouleur, Brian Claggett, Paul J Wang, Arthur J Moss, Scott D Solomon, Valentina Kutyifa
BACKGROUND: Left ventricular dysfunction is a known predictor of ventricular arrhythmias. We hypothesized that measures of regional longitudinal deformation by speckle-tracking echocardiography predict ventricular tachyarrhythmias and provide incremental prognostic information over clinical and conventional echocardiographic characteristics. METHODS AND RESULTS: We studied 1064 patients enrolled in the MADIT-CRT trial (Multicenter Automatic Defibrillator Implantation Trial-Cardiac Resynchronization Therapy) with speckle-tracking data available...
January 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27997526/organ-preservation-with-local-excision-or-active-surveillance-following-chemoradiotherapy-for-rectal-cancer
#19
B Creavin, E Ryan, S T Martin, A Hanly, P R O'Connell, K Sheahan, D C Winter
BACKGROUND: Organ preservation has been proposed as an alternative to radical surgery for rectal cancer to reduce morbidity and mortality, and to improve functional outcome. METHODS: Locally advanced non-metastatic rectal cancers were identified from a prospective database. Patients staged ⩾T3 or any stage N+ were referred for neoadjuvant chemoradiotherapy (CRT) (50-54 Gy and 5-fluorouracil), and were reassessed 6-8 weeks post treatment. An active surveillance programme ('watch and wait') was offered to patients who were found to have a complete endoluminal response...
January 17, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/27981667/assessment-of-pathological-complete-response-to-preoperative-chemoradiotherapy-by-means-of-multiple-mathematical-models-of-diffusion-weighted-mri-in-locally-advanced-rectal-cancer-a-prospective-single-center-study
#20
Hai-Bin Zhu, Xiao-Yan Zhang, Xiao-Hong Zhou, Xiao-Ting Li, Yu-Liang Liu, Shuai Wang, Ying-Shi Sun
PURPOSE: To assess stretched-exponential, mono-exponential and intravoxel incoherent motion (IVIM) models of diffusion-weighted MRI(DWI) in predicting pathological complete response (pCR) to neoadjuvant chemoradiotherapy (CRT) in rectal cancer patients. MATERIALS AND METHODS: This prospective study recruited 98 consecutive patients with locally advanced rectal cancer who underwent 3 Tesla MR examination before, during and after CRT. The apparent diffusion coefficient (ADC), IVIM-derived parameters (D, f, and D*), and stretched-exponential model-derived parameters (DDC and α) were measured...
December 16, 2016: Journal of Magnetic Resonance Imaging: JMRI
keyword
keyword
65783
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"