11 results on '"Abbate K"'
Search Results
2. Risk Factors and Racial and Ethnic Disparities in Patients With Breast Cancer-Related Lymphedema.
- Author
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Montagna G, Zhang J, Sevilimedu V, Charyn J, Abbate K, Gomez EA, Mehrara B, Morrow M, and Barrio AV
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- Adult, Axilla pathology, Cohort Studies, Ethnicity, Female, Humans, Lymph Node Excision adverse effects, Prospective Studies, Risk Factors, Sentinel Lymph Node Biopsy, Breast Neoplasms pathology, Lymphedema epidemiology, Lymphedema etiology
- Abstract
Importance: Risk factors for breast cancer-related lymphedema (BCRL) after axillary lymph node dissection (ALND) are poorly understood., Objective: To evaluate rates of and risk factors associated with BCRL in a prospective cohort of women treated with ALND., Design, Setting, and Participants: This prospective BCRL screening study performed at a tertiary cancer center enrolled women with breast cancer 18 years and older undergoing breast surgery and unilateral ALND in the primary setting or after sentinel lymph node biopsy., Exposures: Risk of BCRL during the first 2 years after ALND and radiotherapy., Main Outcomes and Measures: Patients were prospectively evaluated with arm volume (perometer) measurements, and BCRL was defined as a relative volume change of 10% or greater from baseline. Cumulative incidence of BCRL was assessed using competing risk analysis. Risk factors for BCRL were assessed on univariate and multivariable analyses., Results: From November 2016 to March 2020, 304 patients were enrolled; 276 had at least 1 longitudinal measurement. Median (IQR) age was 48 (40-57) years; median (IQR) body mass index, calculated as weight in kilograms divided by height in meters squared, was 26.4 (22.5-31.2). Of the 276 patients included in the analysis, 29 (11%) self-identified as Asian, 55 (20%) as Black, 16 (6%) as Hispanic, 166 (60%) as White, and 10 (3%) as unknown race and ethnicity; 70% received neoadjuvant chemotherapy (NAC); 93% received nodal irradiation. The 24-month BCRL rate was 23.8% (95% CI, 17.9%-29.8%), with significant variation by race and ethnicity (24-month rate: 37.2% [Black], 27.7% [Hispanic], 22.5% [Asian], and 19.8% [White]; P = .004). The BCRL rates were also higher among patients receiving NAC vs up-front surgery (24-month rate: 29.3% vs 11.1%; P = .01). On multivariable analysis, Black race and Hispanic ethnicity (compared with White race) (odds ratio [OR], 3.88; 95% CI, 2.14-7.08 and OR, 3.01; 95% CI, 1.10-7.62, respectively; P < .001 for each), receipt of NAC (compared with up-front surgery) (OR, 2.10; 95% CI, 1.16-3.95; P = .01), older age (OR, 1.04; 95% CI, 1.02-1.07 per 1-year increase; P = .001), and a longer follow-up interval (OR, 1.57; 95% CI, 1.30-1.90 per 6-month increase; P < .001) were independently associated with an increased risk of BCRL, while ERBB2-positive subtype was associated with a decreased risk of BCRL (compared with hormone receptor positive/ERBB2 negative): OR, 0.50; 95% CI, 0.23-0.99; P = .04)., Conclusion and Relevance: In this cohort study, Black race, Hispanic ethnicity, NAC receipt, older age, and longer follow-up were independently associated with risk of BCRL. Studies are warranted to evaluate the biologic mechanisms behind racial and ethnic disparities in BCRL development and alternatives to NAC to avoid ALND in tumor subtypes unlikely to achieve nodal pathologic complete response.
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- 2022
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3. Longitudinal Prospective Evaluation of Quality of Life After Axillary Lymph Node Dissection.
- Author
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Zhang JQ, Montagna G, Sevilimedu V, Abbate K, Charyn J, Mehrara B, Morrow M, and Barrio AV
- Abstract
Background: Patients often fear axillary lymph node dissection (ALND) because of its associated complications; however, its effect on quality of life (QOL) is not well described. We aimed to evaluate the effect of ALND on QOL over time and to identify predictors of worse QOL., Patients and Methods: Breast cancer patients undergoing ALND were enrolled in a prospective lymphedema screening study. Arm volumes were measured and QOL questionnaires completed at baseline, postoperatively, and at 6-month intervals. The upper limb lymphedema-27 questionnaire was used to assess the effect of upper extremity symptoms on QOL in three domains (physical, psychological, and social). Predictors of QOL were identified by univariate and multivariable regression analyses., Results: From November 2016 through March 2020, 304 ALND patients were enrolled; 242 patients with at least two measurements and 6 months of follow-up were included. Median age was 48 years, and median follow-up was 1.2 years. The 18-month lymphedema rate was 18%. Overall, QOL scores in all three domains decreased postoperatively and improved over time. On multivariable analysis, after adjusting for baseline scores, symptoms necessitating lymphedema therapy referral (p = 0.006) were associated with worse physical QOL. Younger age (p = 0.005) and lymphedema therapy referral (p = 0.006) were associated with worse psychological QOL. Arm volume was not correlated with QOL., Conclusions: QOL scores initially decreased after ALND but improved by 6 months post-surgery. Decreases in QOL were independent of arm volume. Patients with worse QOL more often sought lymphedema therapy, although the effect of therapy on QOL remains unknown., (© 2022. Society of Surgical Oncology.)
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- 2022
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4. Supervised machine learning model to predict oncotype DX risk category in patients over age 50.
- Author
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Pawloski KR, Gonen M, Wen HY, Tadros AB, Thompson D, Abbate K, Morrow M, and El-Tamer M
- Subjects
- Aged, Biomarkers, Tumor genetics, Female, Gene Expression Profiling, Humans, Middle Aged, Neoplasm Recurrence, Local genetics, Predictive Value of Tests, Prognosis, Receptor, ErbB-2 genetics, Supervised Machine Learning, Breast Neoplasms diagnosis, Breast Neoplasms genetics
- Abstract
Purpose: Routine use of the oncotype DX recurrence score (RS) in patients with early-stage, estrogen receptor-positive, HER2-negative (ER+/HER2-) breast cancer is limited internationally by cost and availability. We created a supervised machine learning model using clinicopathologic variables to predict RS risk category in patients aged over 50 years., Methods: From January 2012 to December 2018, we identified patients aged over 50 years with T1-2, ER+/HER2-, node-negative tumors. Clinicopathologic data and RS results were randomly split into training and validation cohorts. A random forest model with 500 trees was developed on the training cohort, using age, pathologic tumor size, histology, progesterone receptor (PR) expression, lymphovascular invasion (LVI), and grade as predictors. We predicted risk category (low: RS ≤ 25, high: RS > 25) using the validation cohort., Results: Of the 3880 tumors identified, 1293 tumors comprised the validation cohort in patients of median (IQR) age 62 years (56-68) with median (IQR) tumor size 1.2 cm (0.8-1.7). Most tumors were invasive ductal (80.3%) of low-intermediate grade (80.5%) without LVI (80.9%). PR expression was ≤ 20% in 27.3% of tumors. Specificity for identifying RS ≤ 25 was 96.3% (95% CI 95.0-97.4) and the negative predictive value was 92.9% (95% CI 91.2-94.4). Sensitivity and positive predictive value for predicting RS > 25 was lower (48.3 and 65.1%, respectively)., Conclusion: Our model was highly specific for identifying eligible patients aged over 50 years for whom chemotherapy can be omitted. Following external validation, it may be used to triage patients for RS testing, if predicted to be high risk, in resource-limited settings., (© 2021. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
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- 2022
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5. A Phase Ib Study of Sotrastaurin, a PKC Inhibitor, and Alpelisib, a PI3Kα Inhibitor, in Patients with Metastatic Uveal Melanoma.
- Author
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Shoushtari AN, Khan S, Komatsubara K, Feun L, Acquavella N, Singh-Kandah S, Negri T, Nesson A, Abbate K, Cremers S, Musi E, Ambrosini G, Lee S, Schwartz GK, and Carvajal RD
- Abstract
Uveal melanoma (UM) is a rare subset of melanoma characterized by the presence of early initiating GNAQ/11 mutations, with downstream activation of the PKC, MAPK, and PI3Kα pathways. Activity has been observed with the PKC inhibitors sotrastaurin (AEB071) and darovasertib (IDE196) in patients with UM. Inhibition of the PI3K pathway enhances PKC inhibition in in vivo models. We therefore conducted a phase Ib study of sotrastaurin in combination with the PI3Kα inhibitor alpelisib to identify a tolerable regimen that may enhance the activity of PKC inhibition alone. Patients with metastatic uveal melanoma (n = 24) or GNAQ/11 mutant cutaneous melanoma (n = 1) were enrolled on escalating dose levels of sotrastaurin (100-400 mg BID) and alpelisib (200-350 mg QD). The primary objective was to identify the maximum tolerated dose (MTD) of these agents when administered in combination. Treatment-related adverse events (AE) occurred in 86% (any grade) and 29% (Grade 3). No Grade 4-5-related AEs occurred. Dose Level 4 (sotrastaurin 200 mg BID and alpelisib 350 mg QD) was identified as the maximum tolerated dose. Pharmacokinetic analysis demonstrated increasing concentration levels with increasing doses of sotrastaurin and alpelisib, without evidence of interaction between agents. Pharmacodynamic assessment of pMARCKS and pAKT protein expression with drug exposure suggested modest target inhibition that did not correlate with clinical response. No objective responses were observed, and median progression-free survival was 8 weeks (range, 3-51 weeks). Although a tolerable dose of sotrastaurin and alpelisib was identified with pharmacodynamic evidence of target inhibition and without evidence of a corresponding immunosuppressive effect, limited clinical activity was observed.
- Published
- 2021
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6. Concordance Between 21-Gene Recurrence Scores in Multifocal or Multicentric Breast Carcinomas Differs by Age and Histologic Subtype.
- Author
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Pawloski KR, Wen HY, Tadros AB, Abbate K, Morrow M, and El-Tamer M
- Subjects
- Biomarkers, Tumor genetics, Female, Humans, Middle Aged, Neoplasm Staging, Prognosis, Receptor, ErbB-2 genetics, Breast Neoplasms genetics, Breast Neoplasms pathology, Neoplasm Recurrence, Local genetics, Neoplasm Recurrence, Local pathology
- Abstract
Background: Among patients with multifocal or multicentric (MF/MC) breast cancer (BC) of similar morphology, concordance in Oncotype DX recurrence scores (RS) between tumors has been reported to be 87%. The effect of age and variation in histologic subtypes on RS concordance according to TAILORx criteria is unknown., Methods: We identified patients with MF/MC, estrogen receptor-positive, HER2-negative, node-negative BC with two or more RS results treated at our institution from 2009 to 2018. Patients were analyzed by age group (≤ 50 and > 50 years). Low- and high-risk cut-offs were RS ≤ 25 and > 25 for age > 50 years, and RS ≤ 20 and > 20 for age ≤ 50 years. RS concordance was defined as no change in management based on RS variation between lesions., Results: Overall, 120 patients with MF/MC BC were identified-82 (68.3%) aged > 50 years and 38 (31.7%) aged ≤ 50 years. Patients aged ≤ 50 years had higher mean RS for both multifocal (20 vs. 14; p = 0.006) and multicentric (17 vs. 13; p = 0.003) tumors and more frequently had high-risk tumors (p < 0.0001). Among patients aged > 50 years, 95.1% had RS concordance between tumors (same subtype, 98.2%; variable subtype, 88.9%; p = 0.1). Among patients aged ≤ 50 years, RS concordance was 81.6%., Conclusions: Among patients with MF/MC BC, RS concordance was high, particularly in those aged > 50 years with tumors of the same histologic subtype. RS testing of one focus may be sufficiently prognostic and predictive in patients aged > 50 years, regardless of subtype concordance. Testing of individual foci should be considered in patients aged ≤ 50 years due to a higher likelihood of RS discordance.
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- 2021
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7. Ipilimumab plus nivolumab for patients with metastatic uveal melanoma: a multicenter, retrospective study.
- Author
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Najjar YG, Navrazhina K, Ding F, Bhatia R, Tsai K, Abbate K, Durden B, Eroglu Z, Bhatia S, Park S, Chowdhary A, Chandra S, Kennedy J, Puzanov I, Ernstoff M, Vachhani P, Drabick J, Singh A, Xu T, Yang J, Carvajal R, Manson D, Kirkwood JM, Cohen J, Sullivan R, Johnson D, Funchain P, and Shoushtari A
- Subjects
- Adolescent, Adult, Aged, Aged, 80 and over, Antineoplastic Combined Chemotherapy Protocols adverse effects, Diarrhea chemically induced, Diarrhea epidemiology, Diarrhea immunology, Fatigue chemically induced, Fatigue epidemiology, Fatigue immunology, Female, Follow-Up Studies, Humans, Immune Checkpoint Inhibitors adverse effects, Ipilimumab adverse effects, Kaplan-Meier Estimate, Male, Melanoma blood, Melanoma mortality, Melanoma pathology, Middle Aged, Nivolumab adverse effects, Progression-Free Survival, Pruritus chemically induced, Pruritus epidemiology, Pruritus immunology, Retrospective Studies, Transaminases blood, Uveal Neoplasms blood, Uveal Neoplasms mortality, Uveal Neoplasms pathology, Young Adult, Antineoplastic Combined Chemotherapy Protocols administration & dosage, Immune Checkpoint Inhibitors administration & dosage, Ipilimumab administration & dosage, Melanoma drug therapy, Nivolumab administration & dosage, Uveal Neoplasms drug therapy
- Abstract
Background: Uveal melanoma (UM) is the most common intraocular malignancy in adults. In contrast to cutaneous melanoma (CM), there is no standard therapy, and the efficacy and safety of dual checkpoint blockade with nivolumab and ipilimumab is not well defined., Methods: We conducted a retrospective analysis of patients with metastatic UM (mUM) who received treatment with ipilimumab plus nivolumab across 14 academic medical centers. Toxicity was graded using National Cancer Institute Common Terminology Criteria for Adverse Events V.5.0. Progression-free survival (PFS) and overall survival (OS) were calculated using Kaplan-Meier methodology., Results: 89 eligible patients were identified. 45% had received prior therapy, which included liver directed therapy (29%), immunotherapy (21%), targeted therapy (10%) and radiation (16%). Patients received a median 3 cycles of ipilimumab plus nivolumab. The median follow-up time was 9.2 months. Overall response rate was 11.6%. One patient achieved complete response (1%), 9 patients had partial response (10%), 21 patients had stable disease (24%) and 55 patients had progressive disease (62%). Median OS from treatment initiation was 15 months and median PFS was 2.7 months. Overall, 82 (92%) of patients discontinued treatment, 34 due to toxicity and 27 due to progressive disease. Common immune-related adverse events were colitis/diarrhea (32%), fatigue (23%), rash (21%) and transaminitis (21%)., Conclusions: Dual checkpoint inhibition yielded higher response rates than previous reports of single-agent immunotherapy in patients with mUM, but the efficacy is lower than in metastatic CM. The median OS of 15 months suggests that the rate of clinical benefit may be larger than the modest response rate., Competing Interests: Competing interests: YGN: Research funding: Merck, Pfizer, BMS. Advisory Board: Array. KKS: Institutional funding: Oncosec, Regeneron. ZE: Research support: Novartis. Advisory board: Array, Regeneron. SC: Advisory Board and (non branded) Speaker’s Bureau for BMS. RC: Consulting: Array, BMS, Castle Biosciences, Compugen, Immunocore, I-Mab, InxMed, Merck, Roche/Genentech, Pierre Fabre, PureTech Health, Sanofi Genzyme, Sorrento Therapeutics. Clinical/Scientific Advisory Boards: Aura Biosciences, Chimeron, Rgenix. Research Funding to Columbia University: Amgen, Array, Astellis, AstraZeneca, Bayer, Bellicum, BMS, Corvus, Eli Lilly, Immunocore, Incyte, Macrogenics, Merck, Mirati, Novartis, Pfizer, Plexxikon, Roche/Genentech. JMK: Grants and personal fees from Bristol‐Myers Squibb and Immunocore; personal fees from Novartis, Iovance, and Elsevier; grants from Checkmate and Merck; Consulting or advisory role for Bristol‐Myers Squibb, Novartis, Array BioPharma, Merck, Roche, Amgen, and Immunocore. RS: Consulting/Advisory Boards: Amgen, Array, BMS, Merck, Novartis, Genentech, Compugen, Replimmune. Research support: Merck, Amgen. DJ: Advisory boards for Array Biopharma, Bristol-Myers Squibb, Incyte, Merck, Novartis, and Genoptix. Research support from Bristol-Myers Squibb and Incyte. AS: Advisory Board: Bristol-Myers Squibb, Immunocore, Castle Biosciences Institutional Research Support: Bristol-Myers Squibb, Immunocore, XcoveryTravel: Parker Institute for Cancer Immunotherapy., (© Author(s) (or their employer(s)) 2020. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
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- 2020
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8. Reducing Readmissions for Heart Failure.
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Usinowicz E, Ronquillo K, Matossian B, Picewicz B, Bartsch E, Haddad C, Abbate K, and O'Connor T
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- Aged, Aged, 80 and over, Female, Heart Failure epidemiology, Humans, Male, United States epidemiology, Critical Care Nursing methods, Critical Care Nursing standards, Heart Failure nursing, Patient Readmission standards, Patient Readmission statistics & numerical data, Practice Guidelines as Topic
- Published
- 2020
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9. Development and evaluation of the See Me Smoke-Free multi-behavioral mHealth app for women smokers.
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Gordon JS, Armin J, D Hingle M, Giacobbi P Jr, Cunningham JK, Johnson T, Abbate K, Howe CL, and Roe DJ
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- Adult, Body Weight, Craving, Feasibility Studies, Female, Follow-Up Studies, Health Behavior, Humans, Patient Dropouts, Patient Satisfaction, Pilot Projects, Self Report, Substance Withdrawal Syndrome, Diet, Exercise, Mobile Applications, Smoking therapy, Smoking Cessation methods, Telemedicine methods
- Abstract
Women face particular challenges when quitting smoking, especially those with weight concerns. A multi-behavioral smoking cessation intervention addressing these concerns and incorporating guided imagery may assist women to engage in healthy lifestyle behaviors. An mHealth app can easily disseminate such an intervention. The goals of this pilot study were to develop and test the feasibility and potential of the See Me Smoke-Free
™ mHealth app to address smoking, diet, and physical activity among women smokers. We used pragmatic, direct-to-consumer methods to develop and test program content, functionality, and the user interface and conduct a pre-/post-test, 90-day pilot study. We enrolled 151 participants. Attrition was 52%, leaving 73 participants. At 90 days, 47% of participants reported 7-day abstinence and significant increases in physical activity and fruit consumption. Recruitment methods worked well, but similar to other mHealth studies, we experienced high attrition. This study suggests that a guided imagery mHealth app has the potential to address multiple behaviors. Future research should consider different methods to improve retention and assess efficacy.- Published
- 2017
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10. Use of genetic tests among neurologists and psychiatrists: knowledge, attitudes, behaviors, and needs for training.
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Salm M, Abbate K, Appelbaum P, Ottman R, Chung W, Marder K, Leu CS, Alcalay R, Goldman J, Curtis AM, Leech C, Taber KJ, and Klitzman R
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- Animals, Cats, Female, Humans, Male, Workforce, Genetic Testing statistics & numerical data, Health Knowledge, Attitudes, Practice, Inservice Training organization & administration, Neurology education, Psychiatry education
- Abstract
This study explores neurologists' and psychiatrists' knowledge, attitudes, and practices concerning genetic tests. Psychiatrists (n = 5,316) and neurologists (n = 2,167) on the American Medical Association master list who had agreed to receive surveys were sent an email link to a survey about their attitudes and practices regarding genetic testing; 372 psychiatrists and 163 neurologists responded. A higher proportion of neurologists (74%) than psychiatrists (14%) who responded to the survey had ordered genetic testing in the past 6 months. Overall, most respondents thought that genetic tests should be performed more frequently, but almost half believed genetic tests could harm patients psychologically and considered legal protections inadequate. Almost half of neurologists (49%) and over 75% of psychiatrists did not have a genetics professional to whom to refer patients; those who had ordered genetic tests were more likely than those who did not do so to have access to a genetic counselor. Of respondents, 10% had received patient requests not to document genetic information and 15% had received inquiries about direct-to-consumer genetic testing. Neurologists reported themselves to be relatively more experienced and knowledgeable about genetics than psychiatrists. These data, the first to examine several important issues concerning knowledge, attitudes and behaviors of neurologists and psychiatrists regarding genetic tests, have important implications for future practice, research, and education.
- Published
- 2014
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11. Conceptual model for heart failure disease management.
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Andrikopoulou E, Abbate K, and Whellan DJ
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- Humans, Disease Management, Heart Failure therapy, Models, Theoretical, Self Care methods, Telemedicine methods
- Abstract
The objective of this review is to propose a conceptual model for heart failure (HF) disease management (HFDM) and to define the components of an efficient HFDM plan in reference to this model. Articles that evaluated 1 or more of the following aspects of HFDM were reviewed: (1) outpatient clinic follow-up; (2) self-care interventions to enhance patient skills; and (3) remote evaluation of worsening HF either using structured telephone support (STS) or by monitoring device data (telemonitoring). The success of programs in reducing readmissions and mortality were mixed. Outpatient follow-up programs generally resulted in improved outcomes, including decreased readmissions. Based on 1 meta-analysis, specialty clinics improved outcomes and nonspecialty clinics did not. Results from self-care programs were inconsistent and might have been affected by patient cognitive status and educational level, and intervention intensity. Telemonitoring, despite initially promising meta-analyses demonstrating a decrease in the number and duration of HF-related readmissions and all-cause mortality rates at follow-up, has not been shown in randomized trials to consistently reduce readmissions or mortality. However, evidence from device monitoring trials in particular might have been influenced by technology and design issues that might be rectified in future trials. Results from the literature suggest that the ideal HFDM plan would include outpatient follow-up at an HF specialty clinic and continuous education to improve patient self-care. The end result of this plan would lead to better understanding on the part of the patient and improved patient ability to recognize and respond to signs of decompensation., (Copyright © 2014 Canadian Cardiovascular Society. Published by Elsevier Inc. All rights reserved.)
- Published
- 2014
- Full Text
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