Publications by authors named "Dale Collins"

This study utilizes a controlled experimental design to investigate the influence of a virtual reality experience on empathy, compassion, moral reasoning, and moral foundations. With continued debate and mixed results from previous studies attempting to show relationships between virtual reality and empathy, this study takes advantage of the technology for its ability to provide a consistent, repeatable experience, broadening the scope of analysis beyond empathy. A systematic literature review identified the most widely used and validated moral psychology assessments for the constructs, and these assessments were administered before and after the virtual reality experience.

View Article and Find Full Text PDF

Background: Breast-conserving therapy (BCT) has emerged as the preferred treatment for most women with early stage breast cancer. However, there is concern for underuse in the elderly, with previously documented low rates of BCT and large variations in practice patterns. The authors' purpose was to examine patterns and correlates of BCT for breast cancer in the elderly US population.

View Article and Find Full Text PDF

Purpose: Healthy, viable mastectomy skin is a critical factor in the outcome of immediate breast reconstruction. Unfortunately, mastectomy skin viability can be problematic and intraoperative assessment is unreliable. For this reason, we have modified our approach to immediate transverse rectus abdominus myocutaneous flap (TRAM) reconstruction.

View Article and Find Full Text PDF

Background: : The purpose of this study was to evaluate the impact of postmastectomy breast reconstruction on the timing of chemotherapy.

Methods: : The authors included stage I-III breast cancer patients from 8 National Comprehensive Cancer Network institutions for whom guidelines recommended chemotherapy. Surgery type was categorized as breast-conserving surgery (BCS), mastectomy alone, mastectomy with immediate reconstruction (M + IR), or mastectomy with delayed reconstruction (M + DR).

View Article and Find Full Text PDF

Background: The authors evaluated the use of national databases to track surgical complications among abdominoplasty and breast augmentation patients.

Methods: Their study population included all patients with abdominoplasty or breast augmentation in the Tracking Operations and Outcomes for Plastic Surgeons (TOPS) and CosmetAssure databases from 2003 to 2007. They evaluated the incidence of hematoma, infection, and/or deep venous thrombosis/pulmonary embolism.

View Article and Find Full Text PDF

Purpose: The purpose of this study was to measure the degree to which informed women chose mastectomy, and to reveal their reasons for this choice.

Patients And Methods: This was a prospective cohort study of patients radiographically and pathologically eligible for either mastectomy or breast-conserving surgery (BCS; n = 125). Participants completed questionnaires at three time points: baseline, after viewing a decision aid, and after a surgical consultation.

View Article and Find Full Text PDF

As pressure on resources increases, decision makers in health care are increasingly seeking high-quality, scientific evidence to support clinical and health policy choices. Ultimately, legislators will look to develop performance measures based on evidence, rather than on consensus or commonality of practice. As plastic surgeons, we can take an increased role in producing impartial evidence on the efficacy of our surgical interventions.

View Article and Find Full Text PDF

The decision to undergo many discretionary medical treatments should be based on informed patient choice. Shared decision making is an effective strategy for achieving this goal. The Centers for Medicare and Medicaid Services (CMS) should extend its pay-for-performance (P4P) agenda to assure that all Americans have access to a certified shared decision-making process.

View Article and Find Full Text PDF

Background: Receiving a new diagnosis of breast cancer is a distressing experience that may precipitate an episode of major depressive disorder. Efficient screening methods for detecting depression in the oncology setting are needed. This study evaluated the receiver operating characteristics (ROC) of the single-item Distress Thermometer (DT) for detecting depression in women newly diagnosed with Stage I-III breast cancer.

View Article and Find Full Text PDF

The following is a summary report from a special symposium titled, "Translating Research into Practice: Setting a Research Agenda for Clinical Decision Tools in Cancer Prevention, Early Detection, and Treatment," that was held on 23 October 2005 in San Francisco at the Annual Meeting of the Society for Medical Decision Making (SMDM). The symposium was designed to answer the question: "What are the top 2 research priorities in the field of patients' cancer-related decision aids?" After introductory remarks by Dr. Barry, each of four panelists-Drs.

View Article and Find Full Text PDF

Background: Patient-reported outcomes in cosmetic and reconstructive breast surgery are increasingly important for clinical research endeavors. Traditional surgical outcomes, centered on morbidity and mortality, remain important but are no longer sufficient on their own. Quality of life has become a crucial research topic augmenting traditional concerns focused on complications and survival.

View Article and Find Full Text PDF

Hypothesis: Transverse rectus abdominus musculocutaneous (TRAM) flap breast reconstruction provides excellent cosmetic results. Pedicle flap viability is greatly enhanced by prereconstruction inferior epigastric vessel ligation, which encourages collateral arterial flow (delayed TRAM). We report our initial experience with laparoscopic inferior epigastric vessel ligation.

View Article and Find Full Text PDF

Background: Emotional distress and psychiatric syndromes are prevalent in the breast cancer population at large. However, to date there is a paucity of literature specifically concerning presurgical breast cancer patients.

Methods: The authors assessed 236 newly diagnosed patients at the time of their presurgical consultation at the Comprehensive Breast Cancer Program of Dartmouth-Hitchcock Medical Center in Lebanon, NH.

View Article and Find Full Text PDF

Background: Analysis of complication data derived from the Breast Reduction Assessment: Value and Outcomes (BRAVO) study, a 9-month prospective, multicenter trial, is presented.

Methods: Data derived from 179 patients were analyzed, including bivariate associations between complications and single predictor variables (Fisher's exact test or chi-square testing) or continuous variables (two-sample t test) and, finally, logistic regression.

Results: The overall complication rate was 43 percent (77 patients).

View Article and Find Full Text PDF

The aim of this investigation was to evaluate if chronic leptin administration corrects high fat diet-induced skeletal muscle insulin resistance, in part, by enhancing rates of glucose disposal and if the improvements are accounted for by alterations in components of the insulin-signaling cascade. Sprague-Dawley rats consumed normal (CON) or high fat diets for three months. After the dietary lead in, the high fat diet group was further subdivided into high fat (HF) and high fat, leptin treated (HF-LEP) animals.

View Article and Find Full Text PDF

The authors evaluated rectus abdominis muscle function after deep inferior epigastric perforator (DIEP) flap elevation. Fifteen consecutive patients who were operated on for breast reconstruction with a free DIEP flap were included in the study. A turn-amplitude electromyographic analysis was used.

View Article and Find Full Text PDF

Our laboratory recently reported that chronic resistance training (RT) improved insulin-stimulated glucose transport in normal rodent skeletal muscle, owing, in part, to increased GLUT-4 protein concentration (Yaspelkis BB III, Singh MK, Trevino B, Krisan AD, and Collins DE. Acta Physiol Scand 175: 315-323, 2002). However, it remained to be determined whether these improvements resulted from alterations in the insulin signaling cascade as well.

View Article and Find Full Text PDF

The aim of this investigation was to evaluate if leptin treatment enhances insulin-stimulated glucose transport in normal (experimental group [EXP]-1) and insulin-resistant skeletal muscle (EXP-2) by altering components of the insulin-signaling cascade and/or glucose transport pathway. In EXP-1, Sprague Dawley rats were assigned to control-chow fed (CON-CF) or leptin treated-chow fed (LEP-CF) groups. Animals were implanted with miniosmotic pumps, which delivered 0.

View Article and Find Full Text PDF

Amyloid precursor protein (APP) cleaving enzyme (BACE) is the enzyme responsible for beta-site cleavage of APP, leading to the formation of the amyloid-beta peptide that is thought to be pathogenic in Alzheimer's disease (AD). Hence, BACE is an attractive pharmacological target, and numerous research groups have begun searching for potent and selective inhibitors of this enzyme as a potential mechanism for therapeutic intervention in AD. The mature enzyme is composed of a globular catalytic domain that is N-linked glycosylated in mammalian cells, a single transmembrane helix that anchors the enzyme to an intracellular membrane, and a short C-terminal domain that extends outside the phospholipid bilayer of the membrane.

View Article and Find Full Text PDF

The goal of the study was to assess whether endothelin-1 levels are increased in tissue and plasma in free flaps. To assess this hypothesis, blood samples were taken from the general circulation before and after reperfusion and from the flap after reperfusion in 20 patients undergoing breast reconstruction with free transverse rectus abdominis musculocutaneous or deep inferior epigastric perforator flaps. Tissue samples were also taken from the flap before and after the period of ischemia.

View Article and Find Full Text PDF

The authors evaluated existing and new criteria for defining the medical necessity for breast reduction surgery. Two cohorts of women (those requesting breast reduction surgery [N = 266] and a group of controls [N = 184]) completed a questionnaire including breast-specific symptom severity, the Short Form 36, the EuroQol, the McGill Pain Questionnaire, and the Multidimensional Body Self Relations Questionnaire. To evaluate prediction validity, the most widely accepted decision criteria and a new definition of medical necessity were applied to the data set to determine whether women meeting the definition had more favorable outcomes than those who did not as measured by validated self-report instruments.

View Article and Find Full Text PDF