ZTZung Vu Tran

Zung Vu Tran

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Previous Organizations / Institutes

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Zung Vu Tran has a total of 206 co-authors. Here are the top co-authors by number of shared publications:


Latest Publications

  • Prevalence and Predictors of Distress in Posttreatment Adult Leukemia and Lymphoma Survivors

    by Whitney C. Jones, Carly Parry, Sharon Devine, Deborah S. Main, Sonia Okuyama, Zung Vu Tran

    This paper examines predictors of cancer-specific distress among posttreatment adult leukemia and lymphoma survivors (LLS). Using a survey mailed to LLS in the Colorado Central Cancer Registry (N = 477), the authors developed a multivariable risk profile for distress. Thirty one percent of LLS reported indicators of distress. Significantly higher distress was associated with younger age (p < 0.001) in bivariate analyses. The risk profile included fear of recurrence, financial burden, and younger age. Distress did not attenuate based on time since treatment completion and may persist up to 4 years posttreatment, suggesting a need for intervention, particularly among high-risk LLS.


  • Psychosocial telephone interventions for patients with cancer and survivors: a systematic review

    by Sonia Okuyama, Whitney Jones, Christine Ricklefs, Zung Vu Tran

    Objective: Over one third of patients with cancer experience elevated psychosocial distress. As screening for distress becomes more common, the number of patients referred for psychosocial care will increase. Psychosocial telephone interventions are recommended as a convenient and exportable alternative to in‐person interventions addressing psychosocial distress. This study reviews the efficacy of randomized controlled trials (RCTs) of psychosocial telephone interventions for patients with cancer.Methods: We conducted a systematic review of peer‐reviewed RCTs evaluating telephone interventions in adult patients with cancer across the survivorship continuum.Results: Through a database search, 480 articles were identified. After manual review, 13 were included, with 7 additional studies identified by back citation, totaling 20 studies. Participants were largely Caucasian, highly educated, with mean age ranging from 49 to 75 years. Most participants were patients with breast cancer (n = 13 studies). Sample sizes were generally small, with most patients recruited from large medical centers. Only one screened for psychosocial need. Interventions varied greatly in length and intensity. Eight studies reported significant effects post‐intervention in the hypothesized direction on at least one psychosocial outcome measure. Of these eight studies, four included more than one follow‐up assessment; of these, only one reported significant effects at last follow‐up. No clear commonalities were found among studies reporting significant effects.Conclusions: Methodological concerns and lack of consistency in adherence to CONSORT reporting guidelines were identified. This body of research would benefit from well‐designed, theory‐based RCTs adequately powered to provide more definitive evidence for intervention efficacy. This will probably require multi‐institutional collaborations, guided by intervention and research methodology best practices. Copyright © 2014 John Wiley & Sons, Ltd.


  • Open Access

    Early Effect of Tidal Volume on Lung Injury Biomarkers in Surgical Patients with Healthy Lungs

    by Ana Fernandez-Bustamante, Jelena Klawitter, John E. Repine, Amanda Agazio, Allison J. Janocha, Chirag Shah, Marc Moss, Ivor S. Douglas, Zung Vu Tran, Serpil C. Erzurum, et al.

    Background: The early biological impact of short-term mechanical ventilation on healthy lungs is unknown. The authors aimed to characterize the immediate tidal volume (VT)-related changes on lung injury biomarkers in patients with healthy lungs and low risk of pulmonary complications. Methods: Twenty-eight healthy patients for knee replacement surgery were prospectively randomized to volume-controlled ventilation with VT 6 (VT6) or 10 (VT10) ml/kg predicted body weight. General anesthesia and other ventilatory parameters (positive end-expiratory pressure, 5 cm H2O, Fio 2, 0.5, respiratory rate titrated for normocapnia) were managed similarly in the two groups. Exhaled breath condensate and blood samples were collected for nitrite, nitrate, tumor necrosis factor-α, interleukins-1β, -6, -8, -10, -11, neutrophil elastase, and Clara Cell protein 16 measurements, at the onset of ventilation and 60 min later. Results: No significant differences in biomarkers were detected between the VT groups at any time. The coefficient of variation of exhaled breath condensate nitrite and nitrate decreased in the VT6 but increased in the VT10 group after 60-min ventilation. Sixty-minute ventilation significantly increased plasma neutrophil elastase levels in the VT6 (35.2 ± 30.4 vs. 56.4 ± 51.7 ng/ml, P = 0.008) and Clara Cell protein 16 levels in the VT10 group (16.4 ± 8.8 vs. 18.7 ± 9.5 ng/ml, P = 0.015). Exhaled breath condensate nitrite correlated with plateau pressure (r = 0.27, P = 0.042) and plasma neutrophil elastase (r = 0.44, P = 0.001). Plasma Clara Cell protein 16 correlated with compliance (r = 0.34, P = 0.014). Conclusions: No tidal volume-related changes were observed in the selected lung injury biomarkers of patients with healthy lungs after 60-min ventilation. Plasma neutrophil elastase and plasma Clara Cell protein 16 might indicate atelectrauma and lung distention, respectively.


  • Tryptophan Supplementation and Postoperative Delirium—A Randomized Controlled Trial

    by Thomas N. Robinson, Christina L. Dunn, Jill C. Adams, Carrie L. Hawkins, Zung V. Tran, Christopher D. Raeburn, Marc Moss

    Objectives: To determine whether the postoperative administration of tryptophan would be beneficial for elderly adults undergoing surgery who are at risk of developing postoperative delirium. Design: Randomized, double‐blind, placebo‐controlled trial. Setting: Denver Veterans Affairs Medical Center. Participants: Individuals aged 60 and older undergoing major elective operations requiring a postoperative intensive care unit ( ICU ) admission (n = 325). Intervention: L‐tryptophan, 1 g orally three times a day or placebo was started after surgery and continued for up to 3 days postoperatively. Measurements: Delirium and its motor subtypes were measured using the Confusion Assessment Method–Intensive Care Unit (CAM‐ICU) and the Richmond Agitation and Sedation Scale. The primary outcome for between‐group comparison was the incidence of excitatory (mixed and hyperactive) postoperative delirium. The secondary outcomes for comparison were the incidence and duration of overall postoperative delirium. Results: The overall incidence of postoperative delirium was 39% (95% confidence interval = 34–44%) (n = 116). Seventeen percent of participants in the tryptophan group and 9% in the placebo group had excitatory delirium ( P = .18), and the duration of excitatory delirium was 3.3 ± 1.7 days for tryptophan and 3.1 ± 1.9 days for placebo ( P = .74). Forty percent of participants in the tryptophan group and 37% in the placebo group had overall delirium ( P = .60), and the duration of overall delirium was 2.9 ± 1.8 days for tryptophan and 2.4 ± 1.6 days for placebo ( P = .17). Conclusion: Postoperative tryptophan supplementation in older adults undergoing major elective operations requiring postoperative ICU admission did not reduce the incidence or duration of postoperative excitatory delirium or overall delirium.


  • Open Access

    Predictors of early faculty attrition at one Academic Medical Center

    by Brenda A Bucklin, Morgan Valley, Cheryl Welch, Zung Vu Tran, Steven R Lowenstein

    Faculty turnover threatens the research, teaching and clinical missions of medical schools. We measured early attrition among newly-hired medical school faculty and identified personal and institutional factors associated with early attrition.


  • Open Access

    Early propranolol treatment induces lung heme-oxygenase-1, attenuates metabolic dysfunction, and improves survival following experimental sepsis

    by Joel Wilson, David Higgins, Haley Hutting, Natalie Serkova, Christine Baird, Ludmila Khailova, Kelly Queensland, Zung Vu Tran, Lindsay Weitzel, Paul E Wischmeyer

    Introduction: Pharmacological agents that block beta-adrenergic receptors have been associated with improved outcome in burn injury. It has been hypothesized that injuries leading to a hypermetabolic state, such as septic shock, may also benefit from beta-blockade; however, outcome data in experimental models have been contradictory. Thus, we investigated the effect of beta-blockade with propranolol on survival, hemodynamics, lung heat shock protein (HSP) expression, metabolism and inflammatory markers in a rat cecal ligation and puncture (CLP) model of sepsis. Methods: Sprague-Dawley rats receiving either repeated doses (30 minutes pre-CLP and every 8 hours for 24 hours postoperatively) of propranolol or control (normal saline), underwent CLP and were monitored for survival. Additionally, lung and blood samples were collected at 6 and 24 hours for analysis. Animals also underwent monitoring to evaluate global hemodynamics. Results: Seven days following CLP, propranolol improved survival versus control (P < 0.01). Heart rates in the propranolol-treated rats were approximately 23% lower than control rats (P < 0.05) over the first 24 hours, but the mean arterial blood pressure was not different between groups. Metabolic analysis of lung tissue demonstrated an increase in lung ATP/ADP ratio and NAD+ content and a decreased ratio of polyunsaturated fatty acids to monounsaturated fatty acids (PUFA/MUFA). Cytokine analysis of the inflammatory cytokine tumor necrosis factor alpha (TNF-alpha) demonstrated decreased expression of TNF-alpha in both lung and plasma at 24 hours post CLP induced sepsis. Finally, propranolol led to a significant increase in lung hemeoxygenase-1 expression, a key cellular protective heat shock protein (HSP) in the lung. Other lung HSP expression was unchanged. Conclusions: These results suggest that propranolol treatment may decrease mortality during sepsis potentially via a combination of improving metabolism, suppressing aspects of the inflammatory response and enhancing tissue protection.


  • Bridging the transition from cancer patient to survivor: Pilot study results of the Cancer Survivor Telephone Education and Personal Support (C-STEPS) program

    by Kathleen Garrett, Sonia Okuyama, Whitney Jones, Denise Barnes, Zung Tran, Lynn Spencer, Karl Lewis, Paul Maroni, Margaret Chesney, Al Marcus


  • Responding to a significant recruitment challenge within three nationwide psychoeducational trials for cancer patients

    by Annette L. Stanton, Marion E. Morra, Michael A. Diefenbach, Suzanne M. Miller, Rosemarie Slevin Perocchia, Peter C. Raich, Linda Fleisher, Kuang-Yi Wen, Zung Vu Tran, Nihal E. Mohamed, et al.

    Purpose When faced with a significant recruitment challenge for three nationwide psychoeducational trials targeting prostate and breast cancer patients, the Cancer Information Service Research Consortium initiated outreach efforts to increase accrual. Recruitment is reported by major outreach strategy to inform the use of similar campaigns, either as primary recruitment efforts or to supplement “in-reach” recruitment within oncology settings. Methods During a 33-month period, recruitment was tracked from the National Cancer Institute’s Cancer Information Service (CIS), the American Cancer Society (ACS), Dr. Susan Love Research Foundation’s Love/Avon Army of Women (AOW), Internet advertising, press releases, radio/television interviews, recruitment materials in community venues, and outreach to churches and cancer support organizations. Results Across projects, the majority (89 %) of recruited participants (N = 2,134) was obtained from the CIS (n = 901, 19 months of recruitment), AOW (n = 869, 18 months), and ACS (n = 123, 12 months). Other efforts showed minimal gain in recruitment. Conclusions Cancer information programs (e.g., CIS and ACS) and registries of individuals willing to participate in cancer-related research (e.g., AOW) can represent exceptional resources for outreach recruitment of cancer patients, especially when the eligibility criteria are highly restrictive. However, these resources do not yield samples representative of the larger population of adults diagnosed with cancer, and conclusions from such trials must be tempered accordingly. Implications for cancer survivors Inadequate recruitment to randomized controlled trials limits the creation of useful interventions for cancer survivors. By enrolling in cancer registries and taking part in research, cancer survivors can contribute to the development of effective resources for the survivor population.


  • Cancer Patient and Survivor Research From the Cancer Information Service Research Consortium: A Preview of Three Large Randomized Trials and Initial Lessons Learned

    by Alfred C. Marcus, Michael A. Diefenbach, Annette L. Stanton, Suzanne M. Miller, Linda Fleisher, Peter C. Raich, Marion E. Morra, Rosemarie Slevin Perocchia, Zung Vu Tran, Mary Anne Bright

    The authors describe 3 large randomized trials from the Cancer Information Service Research Consortium. Three web-based multimedia programs are being tested to help newly diagnosed prostate (Project 1) and breast cancer patients (Project 2) make informed treatment decisions and breast cancer patients prepare for life after treatment (Project 3). Project 3 also tests a telephone callback intervention delivered by a cancer information specialist. All participants receive standard print material specific to each project. Preliminary results from the 2-month follow-up interviews are reported for the initial wave of enrolled participants, most of whom were recruited from the Cancer Information Service (1-800-4-CANCER) telephone information program (Project 1: n =208; Project 2: n =340; Project 3: n =792). Self-reported use of the multimedia program was 51%, 52%, and 67% for Projects 1, 2, and 3, respectively. Self-reported use of the print materials (read all, most, or some) was 90%, 85%, and 83% for Projects 1, 2, and 3, respectively. The callback intervention was completed by 92% of Project 3 participants. Among those using the Cancer Information Service Research Consortium interventions, perceived usefulness and benefit was high, and more than 90% reported that they would recommend them to other cancer patients. The authors present 5 initial lessons learned that may help inform future cancer communications research.


    • 1 January 2013
      • Vol. 23  (2) , 223-9

    The Living Well by Faith Health and wellness program for African Americans: an exemplar of community-based participatory research.

    by Gaye Woods, Arnold H Levinson, Grant Jones, Ralph L Kennedy, Lucille C Johnson, Zung Vu Tran, Tondeleyo Gonzalez, Alfred C Marcus

    Using community-based participatory research (CBPR) as a guiding framework, a faith-based diet, nutrition and physical activity intervention for African Americans was implemented and evaluated as a small-scale randomized trial. Five churches were recruited (intervention=3, control=2), resulting in an enrolled sample of 106 adults (intervention=74, control=32). The control group received a minimal intervention consisting of one educational workshop. The Living Well By Faith intervention group received a more intensive 8-week program. Classes were held twice a week and included educational workshops and exercise sessions. Both interventions were delivered at participating churches. Assessments for program evaluation occurred at baseline and 2-month follow-up. These included weight, blood pressure, percent body fat, and physical fitness using the step test. The sample was predominantly African American, female and well educated. At baseline, no significant differences between intervention and control groups were found for any of the primary endpoints. At 2-months follow up, the intervention group, compared to the control group, showed significant decreases in weight (P<.02), BMI (P<.05), and % body fat (P<.03), with a significant increase in physical fitness (P<.02). Systolic blood pressure also showed group differences in the predicted direction (P=.10). This study provides an exemplar of CBPR. The results obtained are sufficiently promising to support more research involving similar interventions of longer duration and with longer-term follow-up for evaluation.