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930 citation(s) found for "Williams, B".

Dual-Energy Dual-Source CT With Additional Spectral Filtration Can Improve the Differentiation of Non–Uric Acid Renal Stones: An Ex Vivo Phantom Study
Qu, Mingliang , Ramírez-Giraldo, Juan Carlos , Williams, James C. , Vrtiska, Terri J., Leng, Shuai , Lieske, John C. , McCollough, Cynthia H.

Mayo Clinic

American Journal of Roentgenology | May 23, 2011 | Volume: 196 | Issue: 6 | Pages: 1279-1287

10.2214/ajr.10.5041 | PMID 21606290 Get It

Impact of Acute Rejection on Kidney Allograft Outcomes in Recipients on Rapid Steroid Withdrawal
Heilman, Raymond L. , Nijim, S., Chakkera, Harini A. , Devarapalli, Y., Moss, Adyr A. , Hamawi, K., Williams, J. W. , Reddy, Kunam S. , Mulligan, David C. , Mazur, Marta , Chakkera, Harini A

Mayo Clinic

Journal of Transplantation | May 15, 2011 | Volume: 2011 | Issue: No issue available | Pages: 1-8

10.1155/2011/583981 | PMID 21647349 Get It

Background. Our aim was to study the impact of clinical acute rejection (CR) and subclinical rejection (SR) on outcomes in kidney transplant recipients treated with rapid steroid withdrawal (RSW).Methods. All patients who received a living or deceased donor kidney transplant and were treated with RSW were included. The primary outcome was death-censored graft survival. Biopsies with Banff borderline changes were included with the rejection groups.Results. 457 kidney transplant recipients treated with RSW were included; 46 (10%) experienced SR, and 36 (7.8%) had CR. Mean HLA mismatch was significantly higher in the CR group. The Banff grade of rejection was higher in the CR group. There was a larger proportion of patients in both rejection groups with the combination of IFTA and persistent inflammation on the follow-up protocol biopsy done at 1 year. The estimated 5-year death-censored graft survival was 81% in SR, 78% in CR, and 97% in the control group (P<.0001). Significant differences were observed in allograft survival between the CR and control group (HR 9.06, 95% CI 3.39–24.2) and between the SR and control group (HR 4.22, 95% CI 1.30–13.7).Conclusion. Both SR and CR are associated with an inferior graft survival in recipients on RSW.
Increased Anxiety and Length of Treatment Associated With Depressed Patients Who are Readmitted to Collaborative Care
Angstman, Kurt B. , MacLaughlin, Kathy L. , Williams, Mark D. , Rasmussen, Norman H., DeJesus, Ramona S.

Mayo Clinic

Journal of Primary Care & Community Health | December 30, 2010 | Volume: 2 | Issue: 2 | Pages: 82-86

10.1177/2150131910387932 | PMID 23804740 Get It

In 2008, the Institute for Clinical Systems Improvement (ICSI) in Minnesota implemented a model of collaborative care management (CCM) for treatment of depression in primary care. This resulted in significant improvements on both clinical response and remission over usual care, although an increase in utilization metrics has been observed. Mental health comorbidities have previously been significantly associated with an increased likelihood of not responding to initial treatment. This retrospective study hypothesized that patients with mental health comorbidities are more likely to be associated with patients who were readmitted into CCM with recurrent depression. A total of 145 patients who had completed CCM were studied; of these, 32 were diagnosed with recurrent depression and were readmitted to CCM, and 113 were in remission for at least 4 months. There were no statistically significant demographic differences between the 2 groups. The initial screening GAD-7 score for anxiety was significantly increased in the readmission group (12.81 vs 9.20, P = .001) as was the average length of treatment from initial diagnosis to remission (168.09 vs 120.99 days, P = .002). All other initial screening tests were not different between the groups. When controlling for the independent variables by multiple logistic regression, the odds ratio for GAD-7 was 1.1156 (CI = 1.0.192 to 1.2212, P = .0177) and for days of treatment in CCM was 1.0123 (CI = 1.0041 to 1.0206, P = .0033). Patients who are readmitted to CCM for recurrent depression have a statistically increased risk of associated anxiety and a longer treatment course than those who have remained in remission for at least 4 months.
Sensorimotor gating in NTS1 and NTS2 null mice: effects ofd-amphetamine, dizocilpine, clozapine and NT69L
Oliveros, Alfredo , Corena-McLeod, Maria, Williams, Katrina , Boules, Mona, Richelson, Elliott, Heckman, Michael G.

Mayo Clinic

Journal of Experimental Biology | November 26, 2010 | Volume: 213 | Issue: 24 | Pages: 4232-4239

10.1242/jeb.046318 | PMID 21113004 Get It

SUMMARYPre-pulse inhibition (PPI) of the acoustic startle reflex is deficient in patients with schizophrenia. This deficiency is mimicked in mice by the use of the psychotomimetic drugs d-amphetamine and dizolcipine. Antipsychotic drugs such as clozapine are used to treat schizophrenic patients and are also administered to mice to prevent PPI disruption. Neurotensin (NT) produces antipsychotic-like effects when injected into rodent brain through its effects at NT subtype 1 (NTS1) and 2 (NTS2) receptors. We hypothesized that the NT receptor agonist (NT69L) would prevent PPI disruption in mice challenged with d-amphetamine (10 mg kg–1) and dizocilpine (1 mg kg–1). We investigated the role of NTS1 and NTS2 in PPI using wild-type (WT), NTS1 (NTS1–/–) and NTS2 (NTS2–/–) knockout mice, via its disruption by psychotomimetic drugs, as well as the ability of clozapine and NT69L to block these PPI disruptions. There were no differences in baseline PPI across the three genotypes. d-Amphetamine and dizocilpine disrupted PPI in WT and NTS2–/– mice but not in NTS1–/– mice. In WT mice, clozapine (1 mg kg–1) and NT69L (1 mg kg–1) significantly blocked d-amphetamine-induced disruption of PPI. Similarly, in WT mice, clozapine significantly blocked dizocilpine-induced PPI disruption, but NT69L did not. In NTS2–/– mice clozapine blocked d-amphetamine-but not dizocilpine-induced PPI disruption, while NT69L blocked both d-amphetamine- and dizocilpine-induced PPI disruption. Our results indicate that NTS1 seems essential for d-amphetamine and dizocilpine disruption of PPI. Additionally, this report provides support to the hypothesis that NT analogs could be used as novel antipsychotic drugs.
Percutaneous Nephrolithotomy for a 2,8-Dihydroxyadenine Stone in a Horseshoe Kidney
Mitchell, Christopher , Leiske, John, Krambeck, Amy E. , Williams, James C. , Cornell, Lynn D.

Mayo Clinic

Videourology™ | October 18, 2010 | Volume: 24 | Issue: 5 | Pages: No page available

10.1089/vid.2010.0114 Get It

SAGE-Journals-Accessible-Video-Player 10.1089/vid.2010.0114.M1 sj-vid-1-vid-10.1089_vid.2010.0114
Collaborative Care Management for Depression
Angstman, Kurt B. , DeJesus, Ramona S. , Williams, Mark D.

Mayo Clinic

Journal of Primary Care & Community Health | July 26, 2010 | Volume: 1 | Issue: 2 | Pages: 73-77

10.1177/2150131910372630 | PMID 23804365 Get It

The collaborative care management (CCM) model has been demonstrated to be significantly more effective compared to usual care (UC) in depression management although an initial increase in cost measures was seen. In this paper, cost measures as well as clinical response were analyzed on patients with available follow-up data at six months. Records of 219 patients with follow-up data in CCM group and 119 in UC group were reviewed. At six months, there was a statistically significant clinical response rate among patients in CCM compared to UC group ( P < 0.0001). Likewise, 65% in CCM group was “symptom-free” at 6 months vs. 31.9% in UC group ( P < 0.0001). Among the responders in both groups, there was no statistical difference in cost measures. However, cost measures were significantly higher among non-responders compared to responders within CCM. Between the two models, the non-responders in UC had lower cost measures than the non-responders under CCM.
Gastric accommodation in non-ulcer dyspepsia and the roles of Helicobacter pylori infection and vagal function
Thumshirn, Miriam, Camilleri, Michael , Saslow, Stuart B., Williams, Donald E., Burton, Duane D. , Hanson, Russell B.

Mayo Clinic

Gut | June 30, 2010 | Volume: 44 | Issue: 1 | Pages: 55-64

10.1136/gut.44.1.55 | PMID 9862826 Get It

Background The pathophysiological mechanisms in non-ulcer dyspepsia are incompletely understood. Aims To compare gastric motor and sensory functions in Helicobacter pylori positive or negative patients with non-ulcer dyspepsia. Patients Seventeen patients with non-ulcer dyspepsia and 16 asymptomatic controls. Methods The following were evaluated: gastrointestinal symptoms; gastric emptying and orocaecal transit of solids; abdominal vagal function; gastric compliance; fasting and postprandial gastric tone and phasic contractions; symptoms during ingestion of cold water and during the distension of an intragastric bag; and somatic sensitivity and personality profile (Minnesota Multiphasic Personality Inventory, MMPI). Results Gastric accommodation was reduced in H pylori negative dyspeptics relative to controls; the degree of accommodation was unrelated to H pylori status in dyspeptics. Increased postprandial gastric sensation was more frequent among H pylori positive patients (4/5 H pylori positive versus 4/12 H pylori negative patients). Intragastric meal distribution and orocaecal transit were normal; gastric emptying at four hours was abnormal in 4/17 patients. Vagal dysfunction was rare. Eight of 17 patients had somatisation or depression on MMPI. Conclusion Impaired gastric accommodation is frequent in non-ulcer dyspepsia and seems to be unrelated to vagal efferent dysfunction. H pylori infection does not seem to influence gastric accommodation, but is associated with heightened sensitivity in dyspeptics. Therapeutic approaches that restore normal postprandial accommodation and gastric sensitivity should be tested in non-ulcer dyspepsia.
Patients in a Depression Collaborative Care Model of Care
Angstman, Kurt B. , Williams, Mark D.

Mayo Clinic

Journal of Primary Care & Community Health | March 23, 2010 | Volume: 1 | Issue: 1 | Pages: 12-16

10.1177/2150131909359414 | PMID 23804062 Get It

A collaborative care model (CCM) has been implemented for management of depression. This paper studies the impact that the CCM had on cost measures for the period of six months after initial diagnosis of depression compared to patients receiving usual care (UC). There was a significant increase in the CPT costs for the six months following diagnosis in the CCM group ($451.35 vs. $323.50, P < 0.001). The average CPT cost rank and CPT cost differential were also significantly increased in the CCM group. The adjusted means of the CPT costs were (when controlling for prior utilization) $452.11 for the CCM group and $322.09 for UC (P < 0.001). In the CCM group; there were 161 patients (73.5%) that achieved a clinical response for their depression compared to the UC group, which had a 15.1% (18/119) response rate (P < 0.001). There also was a significant difference between the groups in those who were symptoms free of their depression (PHQ-9 score < 5), with the CCM having 59.4% of the patients symptom-free compared to 10.9% of the UC group (P < 0.001). In this group of patients, CCM is associated with markedly improved clinical outcomes for depression, however with a modest short-term increase in CPT costs.
Initial Implementation of a Depression Care Manager Model: An Observational Study of Outpatient Utilization in Primary Care Clinics
Angstman, Kurt B. , DeJesus, Ramona S. , Williams, Mark D.

Mayo Clinic

Population Health Management | October 22, 2009 | Volume: 12 | Issue: 5 | Pages: 227-230

10.1089/pop.2008.0050 | PMID 19848564 Get It

Many primary care physicians understand the challenges of taking care of patients with depression. Care management models for depression have been described as more effective than usual practice. The implementation of such a model requires a clinic manager to be able to predict how this new process might impact staffing and clinical demand. This study was designed to evaluate the initial impact of the implementation of a depression care manager (CM) model on the utilization of outpatient visits. The hypothesis is that the introduction of a CM model for depression in a primary care practice would be associated with an increased utilization of health care resources when compared to usual care (UC). There were 38 patients enrolled during the initial 2 months of implementation of the CM model. Using a retrospective medical record review, the CM population was compared to a similar group receiving UC (N = 49), and a significant increase in the percentage of patients who were seen for any reason in the CM population was found (65.8% vs. 36.7%, P = 0.01). The average CM patient had 1.24 outpatient visits for any reason vs. 0.69 for the UC group ( P = 0.01). When specifically focusing on outpatient visits for depression, the CM group averaged 0.95 visits per patient as compared to the UC patients having 0.55 visits per patient ( P = 0.04). This study suggests that the initial implementation of a CM model for treatment of depression will increase outpatient utilization. ( Population Health Management 2009;12:227–230)