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Dive into the research topics where Annette Walder is active.

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Featured researches published by Annette Walder.


The American Journal of Gastroenterology | 2009

Using a multifaceted approach to improve the follow-up of positive fecal occult blood test results.

Hardeep Singh; Himabindu Kadiyala; Gayathri Bhagwath; Anila Shethia; Hashem B. El-Serag; Annette Walder; Maria E. Velez; Laura A. Petersen

OBJECTIVES:Inadequate follow-up of abnormal fecal occult blood test (FOBT) results occurs in several types of practice settings. Our institution implemented multifaceted quality improvement (QI) activities in 2004–2005 to improve follow-up of FOBT-positive results. Activities addressed precolonoscopy referral processes and system-level factors such as electronic communication, provider education, and feedback. We evaluated their effects on timeliness and appropriateness of positive-FOBT follow-up and identified factors that affect colonoscopy performance.METHODS:Retrospective electronic medical record review was used to determine outcomes before and after QI activities in a multispecialty ambulatory clinic of a tertiary care Veterans Affairs facility and its affiliated satellite clinics. From 1869 FOBT-positive cases, 800 were randomly selected from time periods before and after QI activities. Two reviewers used a pretested standardized data collection form to determine whether colonoscopy was appropriate or indicated based on predetermined criteria and if so, the timeliness of colonoscopy referral and performance before and after QI activities.RESULTS:In cases where a colonoscopy was indicated, the proportion of patients who received a timely colonoscopy referral and performance were significantly higher post-implementation (60.5% vs. 31.7%, P<0.0001 and 11.4% vs. 3.4%, P=0.0005). A significant decrease also resulted in median times to referral and performance (6 vs. 19 days, P<0.0001 and 96.5 vs. 190 days, P<0.0001) and in the proportion of positive-FOBT test results that had received no follow-up by the time of chart review (24.3% vs. 35.9%, P=0.0045). Significant predictors of absence of the performance of an indicated colonoscopy included performance of a non-colonoscopy procedure such as barium enema or flexible sigmoidoscopy (OR=16.9; 95% CI, 1.9–145.1), patient non-adherence (OR=33.9; 95% CI, 17.3–66.6), not providing an appropriate provisional diagnosis on the consultation (OR=17.9; 95% CI, 11.3–28.1), and gastroenterology service not rescheduling colonoscopies after an initial cancellation (OR=11.0; 95% CI, 5.1–23.7).CONCLUSIONS:Multifaceted QI activities improved rates of timely colonoscopy referral and performance in an electronic medical record system. However, colonoscopy was not indicated in over one third of patients with positive FOBTs, raising concerns about current screening practices and the appropriate denominator used for performance measurement standards related to colon cancer screening.


Journal of Neuropsychiatry and Clinical Neurosciences | 2010

Consequences of aggressive behavior in patients with dementia

Mark E. Kunik; A. Lynn Snow; Jessica A. Davila; Thomas McNeese; Avila B. Steele; Valli Balasubramanyam; Rachelle S. Doody; Paul E. Schulz; Jagadeesh S. Kalavar; Annette Walder; Robert O. Morgan

This study examined aggression as a predictor of nursing-home placement, injuries, use of restraints, and use of health services in community-dwelling patients with newly diagnosed dementia. Participants were identified from 2001-2004 Veterans Administration databases; all had a new diagnosis of dementia and no aggression. Patients and caregivers were evaluated for aggression, using the Cohen-Mansfield Agitation Inventory-aggression subscale, and other outcomes for 2 years, with outcome rates compared between patients who did or did not develop aggression and between pre- and postaggressive periods. Of 215 patients, 88 became aggressive, associated with significantly increased use of psychotropic medication (p< or =0.04), injuries (p< or =0.0001), and nursing-home placement (p< or =0.004).


Journal of Geriatric Oncology | 2013

The effect of age and comorbidity on patient-centered health outcomes in patients receiving adjuvant chemotherapy for colon cancer

Jesus Hermosillo-Rodriguez; Daniel A. Anaya; Yvonne H. Sada; Annette Walder; Amber B. Amspoker; David H. Berger; Aanand D. Naik

OBJECTIVES While the impact of age, comorbidity and receipt of adjuvant chemotherapy on survival are known, less is known about their effect on patient-centered outcomes including living situation and unplanned health care services. The current study describes the impact of age and comorbidity on patient-centered outcomes in patients with colon cancer. MATERIALS AND METHODS Patients with resected stage III colon cancer and high risk stage II colon cancer were identified from a colorectal cancer center database. Using data collected from chart abstraction, we describe unplanned health care utilization and trajectories of living situation (use of home health, skilled nursing facility, etc.) among high-risk stage II and III colon cancer patients with regard to age categories and receipt of adjuvant chemotherapy. RESULTS Among 126 eligible patients, 66% received adjuvant chemotherapy and 34% did not. Older patients receiving chemotherapy were more likely to be living independently (81%) compared to those older patients who did not receive chemotherapy (63%). Older patients receiving chemotherapy were less likely to be started on an oxaliplatin-containing regimen compared to younger patients (54% vs. 81%, p=0.02). On multivariate analysis, both diabetes mellitus (OR 3.70 [95% CI 1.3-10.2]) and chronic obstructive pulmonary disease (OR 4.26 [95% CI 1.1-16.0]) were significantly associated with unplanned health care service use. CONCLUSION Medical oncologists appear to factor clinical and sociodemographic variables when making recommendations for adjuvant chemotherapy. Older patients deemed eligible for chemotherapy did not experience significant changes in living situation. Among patients with colon cancer receiving adjuvant chemotherapy, diabetes mellitus and COPD are associated with emergency visits and hospital admissions.


Journal of Traumatic Stress | 2016

Mental Health of Transgender Veterans of the Iraq and Afghanistan Conflicts Who Experienced Military Sexual Trauma.

Jan A. Lindsay; Colt Keo-Meier; Sonora Hudson; Annette Walder; Lindsey Ann Martin; Michael R. Kauth

Little is known about military sexual trauma (MST) in transgender veterans. To address this gap, we examined archival data regarding transgender veterans from the Iraq and Afghanistan conflicts. There were 332 transgender veterans treated at the Veterans Health Administration between 2000 and 2013 (78 men, 254 women; mean age 33.86 years), with most being non-Hispanic White. Transgender status and mental health conditions were identified using the International Classification of Diseases, 9th Revision (ICD-9; World Health Organization, 1980) codes and chart review. Men and women were analyzed separately, using contingency tables and χ2 testing for categorical variables and t tests for continuous variables. Likelihood of having a mental health condition and MST were examined using logistic regression. Among the 15% of participants who experienced MST, MST was associated with the likelihood of posttraumatic stress disorder, adjusted OR = 6.09, 95% confidence interval (CI) [1.22, 30.44] and personality disorder, OR = 3.86, 95% CI [1.05, 14.22] for men and with depressive, OR = 3.33, 95% CI [1.12, 9.93], bipolar, OR = 2.87, 95% CI [1.12, 7.44], posttraumatic stress, OR = 2.42, [1.11, 5.24], and personality disorder, OR = 4.61, 95% CI [2.02, 10.52] for women. Implications include that medical forms should include gender identity and biological gender and that MST treatment should be culturally competent.


Health Expectations | 2016

Valued life abilities among veteran cancer survivors.

Michele J. Karel; Elizabeth A. Mulligan; Annette Walder; Lindsey Ann Martin; Jennifer Moye; Aanand D. Naik

When patients have multiple chronic illnesses, it is not feasible to provide disease‐based care when treatments for one condition adversely affect another. Instead, health‐care delivery requires a broader person‐centred treatment plan based on collaborative, patient‐oriented values and goals.


Journal of Geriatric Psychiatry and Neurology | 2011

Irritability and Social Isolation in Dementia Patients With and Without Depression

Denis Shub; David M. Bass; Robert O. Morgan; Katherine S. Judge; A. Lynn Snow; Nancy Wilson; Annette Walder; Brian Murry; Mark E. Kunik

This study examined the prevalence of irritability and social isolation in veterans with dementia, with and without depression. Participants were diagnosed with dementia and enrolled in a dementia care-coordination and support-service intervention. Participants were interviewed and underwent assessment with the 10-item Center for Epidemiologic Studies Depression scale, a Patient Strain Measure and the Short Blessed Test. In all, of 294 participants completing interviews, 77 (26.2%) were depressed and 107 (36.4%) endorsed irritability; mean social isolation score was 1.59 ± 1.96. Irritability was significantly more likely to be present in depressed versus nondepressed participants (P < .0001), but this relationship was moderated by dementia severity. The mean social isolation score was also significantly more elevated in depressed rather than nondepressed patients (2.82 ± 1.96 vs 1.15 ± 1.76, respectively). Conclusions: Depressed persons with dementia are significantly more likely to experience irritability and social isolation than those who are not depressed.


Journal of The International Neuropsychological Society | 2016

Chronic Effects of Blast-Related TBI on Subcortical Functional Connectivity in Veterans.

Mary R. Newsome; Andrew R. Mayer; Xiaodi Lin; Maya Troyanskaya; George R. Jackson; Randall S. Scheibel; Annette Walder; Ajithraj Sathiyaraj; Elisabeth A. Wilde; Shalini V. Mukhi; Brian A. Taylor; Harvey S. Levin

OBJECTIVES Blast explosions are the most frequent mechanism of traumatic brain injury (TBI) in recent wars, but little is known about their long-term effects. METHODS Functional connectivity (FC) was measured in 17 veterans an average of 5.46 years after their most serious blast related TBI, and in 15 demographically similar veterans without TBI or blast exposure. Subcortical FC was measured in bilateral caudate, putamen, and globus pallidus. The default mode and fronto-parietal networks were also investigated. RESULTS In subcortical regions, between-groups t tests revealed altered FC from the right putamen and right globus pallidus. However, following analysis of covariance (ANCOVA) with age, depression (Center for Epidemiologic Studies Depression Scale), and posttraumatic stress disorder symptom (PTSD Checklist - Civilian version) measures, significant findings remained only for the right globus pallidus with anticorrelation in bilateral temporal occipital fusiform cortex, occipital fusiform gyrus, lingual gyrus, and cerebellum, as well as the right occipital pole. No group differences were found for the default mode network. Although reduced FC was found in the fronto-parietal network in the TBI group, between-group differences were nonsignificant after the ANCOVA. CONCLUSIONS FC of the globus pallidus is altered years after exposure to blast related TBI. Future studies are necessary to explore the trajectory of changes in FC in subcortical regions after blast TBI, the effects of isolated versus repetitive blast-related TBI, and the relation to long-term outcomes in veterans. (JINS, 2016, 22, 631-642).


The American Journal of Gastroenterology | 2016

Risk and Predictors of Variceal Bleeding in Cirrhosis Patients Receiving Primary Prophylaxis With Non-Selective Beta-Blockers.

Richa Shukla; Jennifer R. Kramer; Yumei Cao; Jun Ying; Aylin Tansel; Annette Walder; Shailesh Advani; Hashem B. El-Serag; Fasiha Kanwal

OBJECTIVES:Prior studies have demonstrated the efficacy of non-selective beta-blockers (NSBB) in preventing first variceal bleeding in patients with cirrhosis. However, little is known about the overall effectiveness of NSBB in routine clinical care.METHODS:We conducted a retrospective cohort study of cirrhotic patients without prior bleeding who initiated a NSBB (propranolol, nadolol) at any Veterans Administration facility between 2008 and 2013. The primary outcome was variceal bleeding within 12 months. We conducted Cox-proportional hazards analyses to identify demographic, clinical, and NSBB-related (type of NSBB, mean dose, dose change, and heart rate response) factors associated with variceal bleeding.RESULTS:Of 5,775 patients, 678 (11.7%) developed variceal bleeding. Mean daily dose of NSBB was <40 mg in 58.8%, 18.1% had either upward or downward titration in NSBB dose, and 9.8% had hemodynamic response. Patients who were younger, with ascites, greater medical comorbidity, and higher MELD (Model for end-stage liver disease) scores had a higher risk of variceal bleeding. Patients on a higher daily dose (>60 vs. <40 mg, adjusted hazard ratio (HR) 0.64; 95% confidence interval (CI): 0.51–0.81), who had either upward or downward dose titration (adjusted HR 0.69; 95% CI: 0.52–0.90 and 0.64; 95% CI 0.45–0.90, respectively), and those who achieved hemodynamic response (adjusted HR 0.75; 95% CI=0.57–1.0) had lower risk.CONCLUSIONS:Approximately 12% of patients bled while being on NSBB for primary prophylaxis. A higher NSBB dose and dose titration were protective; yet most patients did not have the NSBB dose titrated to the recommended levels. Our data highlight the need for careful monitoring of cirrhotic patients on NSBB.


International Journal of Geriatric Psychiatry | 2009

Post‐traumatic stress disorder and prediction of aggression in persons with dementia

Valdesha Ball; Sonora Hudson; Jessica A. Davila; Robert O. Morgan; Annette Walder; David P. Graham; Andrea L. Snow; Mark E. Kunik

This prospective cohort study evaluated the potential of increased aggression in patients with dementia who had a preexisting diagnosis of post‐traumatic stress disorder (PTSD) compared with those without a diagnosis of PTSD.


American Journal of Alzheimers Disease and Other Dementias | 2015

Characteristics of Depressed Caregivers of Veterans with Dementia

Carla Bejjani; A. Lynn Snow; Katherine S. Judge; David M. Bass; Robert O. Morgan; Nancy Wilson; Annette Walder; Wendy J. Looman; Catherinie McCarthy; Mark E. Kunik

This study examined the characteristics of caregivers and persons with dementia (PWD) to determine their association with caregiver depression. Participants included 508 PWD (veterans) and 486 caregivers from Boston, Houston, Providence, Beaumont (Texas), and Oklahoma City, identified from diagnoses from medical records and recruited from February 2007 to July 2009, for a larger study evaluating Partners in Dementia Care, a care-coordination intervention. Characteristics evaluated for PWD included activities of daily living, instrumental activities of daily living, cognitive impairment, and disruptive behavior. Caregiver characteristics evaluated included caregiver unmet needs, support-service use, and number of informal helpers. Caregiver depression was measured using the Iowa form 11-item Center for Epidemiologic Studies Depression Scale. Depressed caregivers reported significantly more unmet needs than the nondepressed caregivers. Depressed caregivers also reported a high frequency of disruptive behavior in their PWD. Caregiver perceptions of unmet needs may be an important target for intervention.

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Mark E. Kunik

Baylor College of Medicine

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Robert O. Morgan

University of Texas at Austin

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Aanand D. Naik

Baylor College of Medicine

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David M. Bass

National Institutes of Health

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Nancy Wilson

Baylor College of Medicine

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Aylin Tansel

Baylor College of Medicine

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Fasiha Kanwal

Baylor College of Medicine

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