Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where V. T. Chang is active.

Publication


Featured researches published by V. T. Chang.


Cancer | 2000

Validation of the Edmonton Symptom Assessment Scale

V. T. Chang; Shirley S. Hwang; Martin Feuerman

The Edmonton Symptom Assessment Scale (ESAS) is a nine‐item patient‐rated symptom visual analogue scale developed for use in assessing the symptoms of patients receiving palliative care. The purpose of this study was to validate the ESAS in a different population of patients.


Cancer | 2000

The Memorial Symptom Assessment Scale Short Form (MSAS-SF)

V. T. Chang; Shirley S. Hwang; Martin Feuerman; Basil S. Kasimis; Howard T. Thaler

The Memorial Symptom Assessment Scale Short Form (MSAS‐SF), an abbreviated version of the Memorial Symptom Assessment Scale, measures each of 32 symptoms with respect to distress or frequency alone. A physical symptom subscale (PHYS), psychologic symptom subscale (PSYCH), and global distress index (GDI) can be derived from the Short Form. We validated the MSAS‐SF in a population of cancer patients.


Clinical Infectious Diseases | 2000

The Role of Physical Proximity in Nosocomial Diarrhea

V. T. Chang; Kenrad E. Nelson

To examine physical proximity as a risk factor for the nosocomial acquisition of Clostridium difficile-associated diarrhea (CDAD) and of antibiotic-associated diarrhea (AAD), we assessed a retrospective cohort of 2859 patients admitted to a community hospital from 1 March 1987 through 31 August 1987. Of these patients, 68 had nosocomial CDAD and 54 had nosocomial AAD. In multivariate analysis, physical proximity to a patient with CDAD (relative risk [RR], 1.86; 95% confidence interval [CI], 1.06-3.28), exposure to clindamycin (RR, 4.22; 95% CI, 2.11-8.45), and the number of antibiotics taken (RR, 1.49; 95% CI, 1.23-1.81) were significant. For patients with nosocomial AAD, exposure to a roommate with AAD (RR, 3.94; 95% CI, 1. 27-12.24), a stay in an intensive care unit or cardiac care unit (RR, 1.93; 95% CI, 1.05-3.53), and the number of antibiotics taken (RR, 2.01; 95% CI, 1.67-2.40) were significant risk factors. Physical proximity may be an independent risk factor for acquisition of nosocomial CDAD and AAD.


Journal of Rehabilitation Research and Development | 2007

Cognitive impairment and pain management: review of issues and challenges.

Martha D. Buffum; Evelyn Hutt; V. T. Chang; Michael H. Craine; A. Lynn Snow

The assessment and treatment of pain in persons with cognitive impairments pose unique challenges. Disorders affecting cognition include neurodegenerative, vascular, toxic, anoxic, and infectious processes. Persons with memory, language, and speech deficits and consciousness alterations are often unable to communicate clearly about their pain and discomfort. Past research has documented that persons with cognitive impairments, particularly dementia, are less likely to ask for and receive analgesics. This article provides an overview of the assessment, treatment, and management of pain in adults with cognitive impairments. We review types of cognitive impairment; recent work specific to best practices for pain management in patients with dementia, including assessment-tool development and pharmacological treatment; challenges in patients with delirium and in medical intensive care and palliative care settings; and directions for future research.


Cancer | 2013

The symptom burden of cancer: Evidence for a core set of cancer-related and treatment-related symptoms from the Eastern Cooperative Oncology Group Symptom Outcomes and Practice Patterns study

Charles S. Cleeland; Fengmin Zhao; V. T. Chang; Jeff A. Sloan; Ann M. O'Mara; Paul B. Gilman; Matthias Weiss; Tito R. Mendoza; Ju-Whei Lee; Mph Michael J. Fisch Md

A set of common cancer‐related and treatment‐related symptoms has been proposed for quality of care assessment and clinical research. Using data from a large, multicenter, prospective study, the authors assessed the effects of disease site and stage on the percentages of patients rating these proposed symptoms as moderate to severe.


Archives of Physical Medicine and Rehabilitation | 2003

Rehabilitation needs of an inpatient medical oncology unit.

Sheryl B Movsas; V. T. Chang; Richard S. Tunkel; Vipul V. Shah; Lynn S Ryan; Scott R. Millis

OBJECTIVE To identify prospectively functional impairments and rehabilitation needs in an acute care medical oncology unit. DESIGN Prospective cohort study. SETTING Inpatient medical oncology unit at a Veterans Affairs hospital. PARTICIPANTS Fifty-five patients admitted over a 6-month period. INTERVENTIONS Not applicable. MAIN OUTCOME MEASURES FIM instrument, functionally based physical examination, Rehabilitation Needs Assessment, and Recreational Needs Assessment. RESULTS On admission, the mean FIM total score was 105 out of 126, the FIM motor score was 72 out of 91, and the FIM cognitive score was 34 out of 35. The functionally based physical examination did not generally correlate with scores obtained on the FIM. Forty-eight (87%) patients had rehabilitation needs on admission. Forty-six (84%) patients had rehabilitation needs on discharge. Rehabilitation Needs Assessment on admission showed deconditioning in 42 (76%) patients; mobility impairment in 32 (58%) patients; a significant decrease in range of motion in 23 (42%) patients; deficits in activities of daily living in 12 (22%) patients; a need for recreational therapy in 7 (13%) patients; potential for benefit from patient education in 30 (55%) patients; and a need for modalities, edema control, or wound care in fever than 5% of patients. The most commonly requested recreational activity was reading. CONCLUSIONS Patients admitted to inpatient medical oncology units have many unmet, remediable rehabilitation needs that may not be recognized by nonrehabilitation physicians and other clinical staff. These findings suggest that assessment of medical oncology patients may be enhanced by consultation with rehabilitation medicine specialists.


Journal of Pain and Symptom Management | 2008

New insights in symptom assessment: the Chinese Versions of the Memorial Symptom Assessment Scale Short Form (MSAS-SF) and the Condensed MSAS (CMSAS).

Wendy Wing Tak Lam; Chi Ching Law; Yiu Tung Fu; Kam Hung Wong; V. T. Chang; Richard Fielding

There are very few symptom assessment instruments in Chinese. We present the validity and reliability of the Memorial Symptom Assessment Scale Short Form (MSAS-SF) and the Condensed Form MSAS (CMSAS) in Chinese cancer patients. The Chinese version of the 32-item MSAS-SF, a self-report measure for assessing symptom distress and frequency in cancer patients, was administered to 256 Chinese patients with colorectal cancer at a clinical oncology outpatient unit. Highly prevalent symptoms included worrying (59%), dry mouth (54%), lack of energy (54%), feeling sad (48%), feeling irritable (48%), and pain (41%). Both the MSAS-SF and CMSAS demonstrated good validity and reliability. For the MSAS-SF subscales, Cronbach alphas ranged from 0.84 to 0.91, and for CMSAS subscales, from 0.79 to 0.87. Moderate-to-high correlations of MSAS-SF and CMSAS subscales with appropriate European Organization for Research and Treatment of Cancer (EORTC) QLQ-C30 subscales (0.42-0.71, Ps<0.001) indicated acceptable convergent validity. Low correlations with the Rosenberg Self-Esteem and Optimism Scale (0.22, P<0.001) indicated divergent validity. MSAS subscales varied as expected with other Chinese scales--the Chinese Health Questionnaire (CHQ) and the Life Orientation Scale. Construct validity of both MSAS versions was demonstrated by effective differentiation between clinically distinct patient groups (Karnofsky scores <80% vs. > or =80% [P<0.001]; no active treatment vs. active treatment [P<0.002-0.034]; CHQ-12 scores < or =4 vs. CHQ-12 scores >4 [P<0.001]). The Number of Symptoms subscale correlated appropriately with the EORTC QLQ-C30 function (-0.46 to -0.60, P<0.001) and symptom scales (0.31-0.64, P<0.001). The average time to complete the MSAS-SF was six minutes. The Chinese versions of the MSAS-SF and CMSAS are valid and practical measures. Further validation is needed for Chinese patients with other cancer types and with other symptom instruments.


Journal of the National Cancer Institute | 2016

Maintenance Therapy With Immunomodulatory Drugs in Multiple Myeloma: A Meta-Analysis and Systematic Review

Yucai Wang; Fang Yang; Yan Shen; Wenwen Zhang; Jacqueline Wang; V. T. Chang; Borje S. Andersson; Muzaffar H. Qazilbash; Richard E. Champlin; James R. Berenson; Xiaoxiang Guan; Michael L. Wang

BACKGROUND Immunomodulatory drugs (IMiDs) and proteasome inhibitors have dramatically changed management of multiple myeloma (MM). While MM remains incurable, consolidation and maintenance therapy aimed at improving duration of response can potentially improve survival outcomes. A majority of randomized controlled trials (RCTs) have demonstrated benefit of IMiD-based maintenance therapy in delaying disease progression; however, whether this therapy can lead to improved survival remains controversial. METHODS PubMed and abstract databases of major hematology and/or oncology meetings were searched for RCTs that studied maintenance therapy with IMiDs in MM. A meta-analysis was conducted to systematically evaluate the impact of IMiD-based maintenance therapy on survival outcomes and serious adverse events associated with the therapy. All statistical tests were two-sided. RESULTS Eighteen phase 3 RCTs enrolling 7730 patients were included. IMiD-based maintenance therapy statistically significantly prolonged progression-free survival (PFS; hazard ratio (HR) = 0.62, 95% confidence interval (CI) = 0.57 to 0.67, P < .001) but failed to improve overall survival (OS; HR = 0.93, 95% CI = 0.85 to 1.01, P = .082). Stratified analyses demonstrated that both thalidomide and lenalidomide provided PFS but not OS benefit in transplantation as well as nontransplantation settings. IMiD-based maintenance therapy in MM led to a higher risk of grade 3-4 thromboembolism (risk ratio = 2.52, 95% CI = 1.41 to 4.52, P = .002). Thalidomide maintenance therapy increased the risk of peripheral neuropathy; lenalidomide maintenance therapy increased the risks of myelosuppression and second primary hematological malignancies. CONCLUSIONS Thalidomide- or lenalidomide-based maintenance therapy improves PFS but not OS in MM and increases risks of grade 3-4 adverse events, including thromboembolism, peripheral neuropathy, neutropenia, and infection.


Cell Cycle | 2004

Genistein induces G2 arrest in malignant B cells by decreasing IL-10 secretion.

Amal Mansour; Brian A. McCarthy; Stephan Schwander; V. T. Chang; Sergei V. Kotenko; Sreekrishna Donepudi; Janet Lee; Elizabeth Raveche

Chronic B cell malignancies are often chemoresistant and the development of new therapeutic modalities is a high priority. Many B cell malignancies have autocrine production of IL-10, which regulates B cell growth and differentiation. Here we demonstrated that the soy isoflavone genistein, a tyrosine kinase inhibitor, rapidly decreased IL-10 secretion followed by upregulation of IFN-gamma and inhibition of cell proliferation with predominantly G2 arrest. The antiproliferative effects of genistein could be reversed by the addition of exogenous IL-10. Genistein downregulated cdc25C and cdk1 as well as anti-apoptotic proteins survivin and Ian-5. After genistein withdrawal, the G2M arrested cells re-entered the cell cycle and underwent apoptosis, which was significantly augmented by fludarabine. We conclude that genistein can sensitize malignant B cells to the action of other chemotherapeutic agents by modulating the cytokine profile and controlling cell cycle progression.


Journal of Rehabilitation Research and Development | 2007

Pain and palliative medicine.

V. T. Chang; Brooke Sorger; Kenneth E. Rosenfeld; Karl A. Lorenz; Amos Bailey; Trinh Bui; Lawrence Weinberger; Marcos Montagnini

Severe pain is highly prevalent, with rates of 40% to 70% in patients with advanced cancer, liver disease, heart failure, human immunodeficiency virus, and renal failure. Wide variations in pain assessment and reporting methods and the measurement of multiple symptoms should be addressed in future studies. Regarding psychological approaches, determining whether hypnotherapy or other individual psychotherapeutic interventions reduce pain and/or psychological distress in a palliative care population is difficult. Interest is increasing in the concept of demoralization syndromes and the role of posttraumatic stress disorder in modulating responses to pain at the end of life. We review evidence from multiple studies that the use of rehabilitative therapy improves functional status and pain control among patients with advanced cancer, and we raise the possibility that rehabilitation therapy will be helpful in patients with other advanced diseases. We summarize ongoing clinical trials of electronic order sets, clinical care pathways, and care management pathways to improve pain management in palliative care. Wagners Chronic Illness Model provides a way of analyzing how healthcare systems can be changed to provide adequate and continuing pain management in palliative care. Much work remains to ensure that pain is recognized, treated, and monitored effectively.

Collaboration


Dive into the V. T. Chang's collaboration.

Top Co-Authors

Avatar
Top Co-Authors

Avatar

S. Srinivas

University of Medicine and Dentistry of New Jersey

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Jan H. Einhorn

National Institutes of Health

View shared research outputs
Top Co-Authors

Avatar

Charles S. Cleeland

University of Texas MD Anderson Cancer Center

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Michael J. Fisch

University of Texas MD Anderson Cancer Center

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Researchain Logo
Decentralizing Knowledge