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1430 citation(s) found for "Qi, Nathan".

Improving the Quality of Handoffs in Patient Care Between Critical Care Providers in the Intensive Care Unit
Hoskote, Sumedh S. , Africano, Carlos J. Racedo, Braun, Andrea , O’Horo, John C. , Berrios, Ronaldo A. Sevilla, Loftsgard, Theodore O. , Bryant, Kimberly, Racedo Africano, Carlos J, Braun, Andrea B, Sevilla Berrios, Ronaldo A, Bryant, Kimberly M, Smischney, Nathan J. , Berrios, Ronaldo Sevilla , Iyer, Vivek , O'Horo, John C

American Journal of Medical Quality | June 22, 2016 | Volume: 32 | Issue: 4 | Pages: 376-383

10.1177/1062860616654758 | PMID 27329489 Get It

With the ever-increasing adoption of shift models for intensive care unit (ICU) staffing, improving shift-to-shift handoffs represents an important step in reducing medical errors. The authors developed an electronic handoff tool integrated within the existing electronic medical record to improve handoffs in an adult ICU. First, stakeholder (staff intensivists, fellows, and nurse practitioners/physician assistants) input was sought to define what elements they perceived as being essential to a quality handoff. The principal outcome measure of handoff accuracy was the concordance between data transmitted by the outgoing team and data received by the incoming team (termed as agreement). Based on stakeholder input, the authors developed the handoff tool and provided regular education on its use. Handoffs were observed before and after implementation of the tool. There was an increase in the level of agreement for tasks and other important data points handed off without an increase in the time required to complete the handoff.
Migraine classification using magnetic resonance imaging resting-state functional connectivity data
Chong, Catherine D. , Gaw, Nathan , Fu, Yinlin, Li, Jing , Schwedt, Todd J. , Wu, Teresa , Chong, Catherine D

Cephalalgia | June 16, 2016 | Volume: 37 | Issue: 9 | Pages: 828-844

10.1177/0333102416652091 | PMID 27306407 Get It

Background This study used machine-learning techniques to develop discriminative brain-connectivity biomarkers from resting-state functional magnetic resonance neuroimaging ( rs-fMRI) data that distinguish between individual migraine patients and healthy controls. Methods This study included 58 migraine patients (mean age = 36.3 years; SD = 11.5) and 50 healthy controls (mean age = 35.9 years; SD = 11.0). The functional connections of 33 seeded pain-related regions were used as input for a brain classification algorithm that tested the accuracy of determining whether an individual brain MRI belongs to someone with migraine or to a healthy control. Results The best classification accuracy using a 10-fold cross-validation method was 86.1%. Resting functional connectivity of the right middle temporal, posterior insula, middle cingulate, left ventromedial prefrontal and bilateral amygdala regions best discriminated the migraine brain from that of a healthy control. Migraineurs with longer disease durations were classified more accurately (>14 years; 96.7% accuracy) compared to migraineurs with shorter disease durations (≤14 years; 82.1% accuracy). Conclusions Classification of migraine using rs-fMRI provides insights into pain circuits that are altered in migraine and could potentially contribute to the development of a new, noninvasive migraine biomarker. Migraineurs with longer disease burden were classified more accurately than migraineurs with shorter disease burden, potentially indicating that disease duration leads to reorganization of brain circuitry.
Survey on the Current State of Endotracheal Intubation Among the Critically Ill
Seisa, Mohamed O. , Gondhi, Venkatesh, Demirci, Onur , Diedrich, Daniel A. , Smischney, Nathan J. , Kashyap, Rahul

Journal of Intensive Care Medicine | June 13, 2016 | Volume: 33 | Issue: 6 | Pages: 354-360

10.1177/0885066616654452 | PMID 27298389 Get It

Objectives: In the last decade, the practice of intubation in the intensive care unit (ICU) has evolved. To further examine the current intubation practice in the ICU, we administered a survey to critical care physicians. Design: Cross-sectional survey study design. Setting: Thirty-two academic/nonacademic centers nationally and internationally. Measurements and Main Results: The survey was developed among a core group of physicians with the assistance of the Survey Research Center at Mayo Clinic, Rochester, Minnesota. The survey was pilot tested for functionality and reliability. The response rate was 82 (51%) of 160 among the 32 centers. Although propofol was the induction drug of choice, there was a significant difference with actual ketamine use and those who indicated a preference for it (ketamine: 52% vs 61%; P < .001). The most common airway device used for intubation was direct laryngoscopy (Miller laryngoscope blade) at 56 (68%) followed by video laryngoscopy at 26 (32%). Most (>90%) indicated that they have a difficult airway cart, but only 55 (67%) indicated they have a documented plan to handle a difficult airway with even lower results for documented review of adverse events (49%). Conclusion: Although propofol was the induction drug of choice, ketamine was a medication that many preferred to use, possibly relating to the fact that the most common complication postintubation is hypotension. Direct laryngoscopy remains the primary airway device for endotracheal intubation. Finally, although the majority stated they had a difficult airway cart available, most did not have a documented plan in place when encountering a difficult airway or a documented process to review adverse events surrounding intubation.
Patterns and predictors of clustered risky health behaviors among adult survivors of childhood cancer: A report from the Childhood Cancer Survivor Study
Lown, E. Anne , Zhang, Nan , Srivastava, Deo Kumar , Leisenring, Wendy M. , Nathan, Paul C. , Devine, Katie A. , Krull, Kevin R. , Oeffinger, Kevin C. , Armstrong, Gregory T. , Ness, Kirsten K. , Hijiya, Nobuko , Castellino, Sharon M. , Dilley, Kimberley Jo , Hudson, Melissa M. , Robison, Leslie L. , Leisenring, Wendy , Ness, Kirsten K

Cancer | June 3, 2016 | Volume: 122 | Issue: 17 | Pages: 2747-2756

10.1002/cncr.30106 | PMID 27258389 Get It

BACKGROUNDHealth complications related to childhood cancer may be influenced by risky health behaviors (RHBs), particularly when RHBs co‐occur. To the authors' knowledge, only limited information is available describing how RHBs cluster among survivors of childhood cancer and their siblings and the risk factors for co‐occurring RHBs.METHODSLatent class analysis was used to identify RHB clusters using longitudinal survey data regarding smoking, alcohol use, and physical activity from adult survivors (4184 survivors) and siblings (1598 siblings) in the Childhood Cancer Survivor Study. Generalized logistic regression was used to evaluate associations between demographic characteristics, treatment exposures, psychological distress, health conditions, and cluster membership.RESULTSThree RHB clusters were identified: a low‐risk cluster, an insufficiently active cluster, and a high‐risk cluster (tobacco and risky alcohol use and insufficient activity). Compared with siblings, survivors were more likely to be in the insufficiently active cluster (adjusted odds ratio [ORadj], 1.17; 95% confidence interval [95% CI], 1.06‐1.27) and were less likely to be in the high‐risk cluster (ORadj, 0.79; 95% CI, 0.69‐0.88). Risk factors for membership in the high‐risk cluster included psychological distress (ORadj, 2.76; 95% CI, 1.98‐3.86), low educational attainment (ORadj, 7.49; 95% CI, 5.15‐10.88), income <$20,000 (ORadj, 2.62; 95% CI, 1.93‐3.57), being divorced/separated or widowed (ORadj, 1.36; 95% CI, 1.03‐1.79), and limb amputation (ORadj, 1.52; 95% CI, 1.03‐2.24). Risk factors for the insufficiently active cluster included chronic health conditions, psychological distress, low education or income, being obese or overweight, female sex, nonwhite race/ethnicity, single marital status, cranial radiation, and cisplatin exposure.CONCLUSIONSRHBs co‐occur in survivors of childhood cancer and their siblings. Economic and educational disadvantages and psychological distress should be considered in screening and interventions to reduce RHBs. Cancer 2016. © 2016 American Cancer Society. Cancer 2016;122:2747–2756. © 2016 American Cancer Society.
Procedural and clinical outcomes of percutaneous adrenal biopsy in a high‐risk population for adrenal malignancy
Delivanis, Danae A. , Erickson, Dana , Atwell, Thomas D. , Natt, Neena, Maraka, Spyridoula , Schmit, Grant D. , Eiken, Patrick W. , Nathan, Mark A., Young, William F. , Bancos, Irina , Maraka, Spyridoula

Clinical Endocrinology | June 1, 2016 | Volume: 85 | Issue: 5 | Pages: 710-716

10.1111/cen.13117 | PMID 27248805 Get It

SummaryObjectiveThe role of percutaneous adrenal biopsy in a high‐risk population for adrenal malignancy has not been fully investigated. Our aim was to describe the clinical presentation leading to the adrenal biopsy and evaluate the diagnostic performance, complications and non diagnostic rate of adrenal biopsy.DesignSingle‐centre, retrospective cohort study.Patients and MeasurementsMedical records of patients who underwent adrenal biopsy between 1994 and 2014 were reviewed. Adrenal biopsy outcome was compared to a predefined reference standard.ResultsBiopsy was performed in 418 patients [62% men, median age 69 years (range, 15–91)] on 419 adrenal lesions, median size 3·1 cm (range, 0·6–24). The main indication for adrenal mass biopsy was (349/419, 83%) suspected adrenal metastasis from a known or suspected extra‐adrenal primary source. Only 116 of 419, 28% of cases had prebiopsy biochemical testing for pheochromocytoma. Biopsy‐related complications occurred in 4% of the patients. Histology revealed a metastasis in 231 of 419 (55%), benign adrenal tissue in 137 of 419 (33%), adrenocortical carcinoma in eight of 419 (2%), other lesions in 23 of 419 (5%) including seven cases of pheochromocytoma and six cases of infectious process. Biopsy was nondiagnostic in 20 of 419 (5%). All adrenal masses with unenhanced radiodensity ≤10 HU (42/137, 31%) proved to be benign adrenal adenomas. Adrenal biopsy diagnosed malignancy with a sensitivity of 88·5%, specificity of 91·5%, positive predictive value of 93·4% and negative predictive value of 85·5%.ConclusionWhen used in the appropriate clinical setting, adrenal biopsy is a powerful tool in the diagnostic algorithm of the evaluation of adrenal masses with features suspicious for malignancy. Efforts to increase awareness to perform biochemical testing for pheochromocytoma prior to adrenal biopsy are needed.
Variability in Amyotrophic Lateral Sclerosis
Staff, Nathan P. , Staff, Nathan P

JAMA Neurology | May 31, 2016 | Volume: 73 | Issue: 7 | Pages: 781

10.1001/jamaneurol.2016.0729 | PMID 27244462 Get It

Prevention of stress- or nitric oxide donor-induced medication overuse headache by a calcitonin gene-related peptide antibody in rodents
Kopruszinski, Caroline Machado , Xie, Jennifer Y. , Eyde, Nathan, Walter, Sarah , Stratton, Jennifer , Bigal, Marcelo E. , Chichorro, Juliana Geremias , Dodick, David, Remeniuk, Bethany , Dodick, David W. , Porreca, Frank , Kopruszinski, Caroline

Cephalalgia | May 22, 2016 | Volume: 37 | Issue: 6 | Pages: 560-570

10.1177/0333102416650702 | PMID 27206958 Get It

Objective The objective of this study was the determination of the role of calcitonin gene-related peptide (CGRP) in the induction of medication overuse headache (MOH)-related migraine in an injury-free preclinical model. Methods Rats were primed by a 7-day period of exposure to acute migraine therapies including sumatriptan and morphine. After an additional 14-day drug-free period, rats were exposed to putative migraine triggers including bright light stress (BLS) or nitric oxide (NO) donor in the presence or absence of TEV48125, a fully humanized CGRP antibody. Cutaneous allodynia (CA) was used as an outcome measure and CGRP blood and cerebrospinal fluid (CSF) levels were measured. Results BLS and NO donor challenge evoked delayed, long-lasting CA selectively in rats that were previously treated with sumatriptan or morphine. BLS produced a significant increase in CGRP in the plasma, but not CSF, in animals that were previously exposed to sumatriptan compared to saline controls. TEV48125 did not modify baseline tactile thresholds or produce behavioral side effects, but significantly inhibited both BLS- and NO donor-induced CA in animals that were previously primed with sumatriptan or morphine; an isotype control protein that does not bind CGRP had no effect. Interpretation These data suggest that acute migraine medications may promote MOH in susceptible individuals through CGRP-dependent mechanisms and that anti-CGRP antibodies may be a useful clinical strategy for the treatment of MOH.
Central nervous system relapse in patients with untreated HER2‐positive esophageal or gastroesophageal junction adenocarcinoma
Yoon, Harry H. , Lewis, Mark A. , Foster, Nathan R. , Sukov, William R. , Khan, Maliha , Sattler, Christopher A., Wiktor, Anne E., Wu, Tsung‐Teh, Jenkins, Robert B. , Sinicrope, Frank A.

International Journal of Cancer | May 21, 2016 | Volume: 139 | Issue: 7 | Pages: 1626-1631

10.1002/ijc.30200 | PMID 27198655 Get It

Although HER2‐positive breast cancers demonstrate a propensity for central nervous system (CNS) metastasis, it is unknown whether other HER2‐positive tumors, including adenocarcinomas of the esophagus/gastroesophageal junction (EAC), share this characteristic. Insight into this association may inform the development of HER2‐targeted therapies that penetrate the blood‐brain barrier. We examined HER2 overexpression and gene amplification in 708 patients with EAC who underwent curative‐intent surgery during a time period (1980–1997) when no patient received HER2‐targeted therapy. We identified patients whose site of first cancer recurrence was CNS and those who had a CNS relapse at any time. After a median follow‐up of 61.2 months, 3.4% (24/708) of patients developed CNS relapse (all involved the brain). Patients with HER2‐positive (vs ‐negative) primary tumors showed a higher 5‐year cumulative incidence of CNS relapse as first recurrence (5.8% vs. 1.2%; p = 0.0058) and at any time (8.3% vs. 2.4%; p = 0.0062). In a multivariable model that included covariates previously associated with HER2 or with CNS relapse in breast cancer, HER2 positivity was the only variable that was statistically significantly associated with shorter time to CNS relapse as first recurrence (p = 0.0026) or at any time (hazard ratio 4.3 [95% confidence interval 1.8 to 10.3]; p = 0.001). These are the first data in a non‐breast cancer to demonstrate an association between HER2 positivity and higher CNS relapse risk after surgery, and suggest that HER2‐positive EACs have a predilection for CNS metastases.
Focal photoparoxysmal response in the Heidenhain variant of CJD
Feyissa, Anteneh M. , Wirrell, Elaine C., Young, Nathan P. , Wirrell, Elaine , Jones, David T. , Britton, Jeffrey W. , Feyissa, A M

Neurology | April 25, 2016 | Volume: 86 | Issue: 17 | Pages: 1647-1648

10.1212/wnl.0000000000002617 | PMID 27164643 Get It

Incidence of and Risk Factors For Post-Intubation Hypotension in the Critically Ill
Demirci, Onur , Diedrich, Daniel A. , Barbara, David W. , Sandefur, Benjamin J. , Trivedi, Sangita , McGarry, Sean D. , Smischney, Nathan J. , Kashyap, Rahul

Medical Science Monitor | April 12, 2016 | Volume: 22 | Issue: No issue available | Pages: 346-355

10.12659/msm.895919 | PMID 26831818 Get It