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80 citation(s) found for "Chang, Yu‐Hui".

Imploding and Exploding Migraine Headaches: Comparison of Methods to Diagnose Pain Directionality
Files, Julia A. , Schwedt, Todd J. , Mayer, Anita P. , David, Paru S., Vargas, Bert B., Hunt, Megan J. Olson , Patel, Salma , Ko, Marcia G., Tozer, Beverly S., Chang, Yu‐Hui , Burstein, Rami , Dodick, David W. , Schwedt, Todd J

Mayo Clinic

Headache: The Journal of Head and Face Pain | February 17, 2014 | Volume: 54 | Issue: 6 | Pages: 1010-1018

10.1111/head.12335 | PMID 24527766 Get It

Background The study aims to compare methods of determining headache directionality (imploding, exploding, and/or ocular headaches) in women with migraine, investigate the concordance between physician assignment and patient self‐assignment of pain directionality, and evaluate whether patients assigned their headaches to the same direction when queried using different methods. Directionality of migraine headache pain (imploding, exploding, or ocular) may reflect differences in the underlying pathogenesis of individual migraine attacks among and within individuals. Emerging evidence suggests that directionality of pain in migraine sufferers may predict response to onabotulinumtoxin A . The best method of determining headache directionality in migraine sufferers has not been systematically explored. Methods We conducted a prospective cross‐sectional survey study of 198 female patients with migraine presenting to a W omen's H ealth C linic. Patients determined the directionality (imploding, exploding, and/or ocular) of their own migraine pain by choosing among 3 pictures graphically representing directionality and also by responding to a written question regarding directionality. Clinicians then classified directionality of migraine pain using structured interviews. Concordance between clinician assignment of directionality and patient self‐assignment was determined with K appa coefficients. Results Subjects were females between the ages of 18 and 77 years (mean 48 years). According to patient selection of representative pictures, 62 (31.6%) had imploding headaches with or without ocular pain, 36 (18.4%) had exploding headaches with or without ocular pain, 78 (39.8%) had ocular pain only, and 20 (10.2%) had imploding and exploding headaches with or without ocular pain. Two subjects did not respond. According to patient responses to a written question, 80 (41.0%) had imploding headaches with or without ocular pain, 53 (27.2%) had exploding headaches with or without ocular pain, 46 (23.6%) had ocular pain only, and 16 (8.2%) had imploding and exploding headaches with or without ocular pain. Three subjects did not respond. For physician assignment, 69 (34.9%) subjects had imploding headaches with or without ocular pain, 89 (45%) had exploding headaches with or without ocular pain, 14 (7.1%) had ocular pain only, and 26 (13.1%) had imploding and exploding headaches with or without ocular pain. The concordance ( K appa coefficient) between physician assignment of headache directionality with patient response to the written question was 0.33 (weak agreement), between physician assignment and patient assignment via selection of representative pictures was 0.35 (weak agreement), and between patient assignment via written question and via selection of representative pictures was 0.35 (weak agreement). Conclusions The assignment of headache directionality varied substantially depending upon the method of determination. The concordance between clinician assignment, patient‐self assignment via answering a written question, and patient self‐assignment via choosing a representative picture was weak. Improved methods of determining pain directionality are needed.
Submandibular Gland Preservation during Concurrent Neck Dissection and Transoral Surgery for Oropharyngeal Squamous Cell Carcinoma
Howard, Brittany E. , Hinni, Michael L., Nagel, Thomas H. , Cheng, Meng‐Ru, Hayden, Richard E. , Chang, Yu‐Hui

Mayo Clinic

Otolaryngology–Head and Neck Surgery | January 21, 2014 | Volume: 150 | Issue: 4 | Pages: 587-593

10.1177/0194599813519041 | PMID 24449797 Get It

ObjectivesAnalyze the effect of ipsilateral submandibular gland preservation on patients undergoing concurrent neck dissection and transoral surgery for oropharyngeal squamous cell carcinoma. Evaluate for (1) intraoperative and postoperative communications between the oropharynx and neck and (2) oncologic outcomes.Study DesignRetrospective chart review of prospectively collected data.SettingTertiary academic referral center.Methods and SubjectsRetrospective chart review of patients undergoing transoral laser resection of oropharyngeal squamous cell carcinoma with simultaneous neck dissection(s) for primary, persistent, recurrent, and second primary disease between January 1999 and February 2013. Data analyzed for operative technique, pathologic diagnosis, postoperative course, complications, and oncologic outcomes.ResultsOverall 253 patients were identified. Of these, 96 patients underwent ipsilateral submandibular gland preservation and 157 underwent ipsilateral submandibular gland removal at the time of neck dissection. The prevalence of intraoperative communication between the neck and oropharynx was significantly lower in cases with submandibular gland preservation (2/96, 2.08%) compared to those with submandibular gland removal (22/157, 14.13%). No postoperative leaks occurred in the gland preservation group (0/96, 0%) compared to a leak prevalence of 8.92% (14/157) when the gland was removed (P =. 0041). There was no difference in local, regional, or distant disease recurrence between submandibular gland preservation and gland removal. Similarly, Kaplan‐Meier analysis showed no difference in disease free survival, disease specific survival, or overall survival.ConclusionsSubmandibular gland preservation during neck dissection in patients undergoing transoral surgery for oropharyngeal squamous cell carcinoma significantly reduces the risk of intraoperative and postoperative salivary leaks without compromising oncologic outcomes.
Emergency Department Physician Telemedical Triage
Traub, Stephen J., Butler, Rebecca K. , Chang, Yu‐Hui , Lipinski, Christopher A.

Mayo Clinic

Telemedicine and e-Health | October 4, 2013 | Volume: 19 | Issue: 11 | Pages: 841-845

10.1089/tmj.2013.0026 | PMID 24093916 Get It

Background: Telemedical physician triage (TPT) is a potential application of telemedicine in the emergency department (ED). We report the technical success, patient satisfaction, and effect on ED throughput metrics (length of stay [LOS] and time to physician evaluation [TPE]) of TPT performed on a mobile platform. Materials and Methods: Patients underwent standard nursing triage with or without TPT. Technical success is reported as raw data. Patient satisfaction is reported as raw data±standard deviation on a 5-point (low-to-high) scale. LOS and TPE are reported as mean±SD [95% CI] values. Statistical analyses of LOS and TPE are via two-sample t test. Results: One hundred six patients were registered during intervention periods, and TPT was completed in 36 (34%). One hundred ninety-six patients were registered during control periods. The technical success rate was 95%. Average patient satisfaction was 4.7 on a 5-point scale. The primary analysis (106 patients) showed no change in LOS (266±101 [244–288] min versus 258±172 [234–282] min) but a trend toward improved TPE with TPT (35±28 [29–41] min versus 42±31 [38–46] min) ( p =0.052). A secondary analysis (36 patients) showed no change in LOS (273±125 [231–316] min versus 258±172 [234–282] min) but improved TPE with TPT (16±15 [11–21] min versus 42±31 [38–46] min) ( p <0.0001). Conclusions: TPT in the ED on a mobile platform was technically successful, well accepted by patients, and associated with a decrease in TPE but not LOS.
New Onset Diabetes Mellitus in Living Donor versus Deceased Donor Liver Transplant Recipients: Analysis of the UNOS/OPTN Database
Yadav, Anitha, Chang, Yu‐Hui , Aqel, Bashar , Byrne, Thomas , Chakkera, Harini A. , Douglas, David D., Rakela, Jorge , Vargas, Hugo E. , Carey, Elizabeth J. , Yadav, Anitha D, Aqel, Bashar A. , Mulligan, David C. , Vargas, Hugo E , Chakkera, Harini A , Chang, Yu-Hui

Mayo Clinic

Journal of Transplantation | September 24, 2013 | Volume: 2013 | Issue: No issue available | Pages: 1-7

10.1155/2013/269096 | PMID 24205434 Get It

New onset diabetes after transplantation (NODAT) occurs less frequently in living donor liver transplant (LDLT) recipients than in deceased donor liver transplant (DDLT) recipients. The aim of this study was to compare the incidence and predictive factors for NODAT in LDLT versus DDLT recipients. The Organ Procurement and Transplant Network/United Network for Organ Sharing database was reviewed from 2004 to 2010, and 902 LDLT and 19,582 DDLT nondiabetic recipients were included. The overall incidence of NODAT was 12.2% at 1 year after liver transplantation. At 1, 3, and 5 years after transplant, the incidence of NODAT in LDLT recipients was 7.4, 2.1, and 2.6%, respectively, compared to 12.5, 3.4, and 1.9%, respectively, in DDLT recipients. LDLT recipients have a lower risk of NODAT compared to DDLT recipients (hazard ratio = 0.63 (0.52–0.75),P<0.001). Predictors for NODAT in LDLT recipients were hepatitis C (HCV) and treated acute cellular rejection (ACR). Risk factors in DDLT recipients were recipient male gender, recipient age, body mass index, donor age, donor diabetes, HCV, and treated ACR. LDLT recipients have a lower incidence and fewer risk factors for NODAT compared to DDLT recipients. Early identification of risk factors will assist timely clinical interventions to prevent NODAT complications.
Validation of a Pretransplant Risk Score for New-Onset Diabetes After Kidney Transplantation
Chakkera, Harini A. , Ayub, Asad, Gonwa, Thomas A., Weil, E. Jennifer , Knowler, William C. , Chang, Yu‐Hui , Chakkera, Harini A

Mayo Clinic

Diabetes Care | September 6, 2013 | Volume: 36 | Issue: 10 | Pages: 2881-2886

10.2337/dc13-0428 | PMID 24009296 Get It

OBJECTIVE Identification of patients at high risk for new-onset diabetes after kidney transplantation (NODAT) will facilitate clinical trials for its prevention. RESEARCH DESIGN AND METHODS We previously described a pretransplant predictive risk model for NODAT using seven pretransplant variables (age, planned use of maintenance corticosteroids, prescription for gout medicine, BMI, fasting glucose, fasting triglycerides, and family history of diabetes). We have now applied the initial model to a cohort of 474 transplant recipients from another center for validation. We performed two analyses in the validation cohort. The first was a standard model with variables derived from the original study. The second was a summary score model, in which the sum of dichotomized variables (all the variables dichotomized at clinically relevant cut points) was used to categorize, individuals into low (0–1), intermediate (2, 3), or high (4–7) risk groups. We also conducted a combined database analyses, merging the initial and validation cohorts (n = 792) to obtain better estimates for a prediction equation. RESULTS Although the frequency of several risk factors differed significantly between the two cohorts, the models performed similarly in each cohort. Using the summary score model, incidences of NODAT in low-risk, medium-risk, and high-risk groups in the initial cohort were 12, 29, and 56%, and in the validation cohort incidences were 11, 29, and 51%. CONCLUSIONS A pretransplant model for NODAT, including many type 2 diabetes risk factors, predicted NODAT in the validation cohort.
Attributes Associated with Patient Perceived Outcome in an Academic Chronic Pain Clinic
Trentman, Terrence L. , Chien, James J., Rosenfeld, David M. , Gorlin, Andrew , Seamans, David P. , Freeman, John A., Wilshusen, Laurie , Chang, Yu‐Hui

Mayo Clinic

Pain Practice | May 22, 2013 | Volume: 14 | Issue: 3 | Pages: 217-222

10.1111/papr.12077 | PMID 23692280 Get It

AbstractObjectivesPatient satisfaction is tied to outcome, but there is scant literature on the relationship of patient perceived outcome and attributes of the pain clinic visit, including the patient interaction with the pain management specialist. The primary purpose of this study is to identify attributes of the patient–provider interaction most strongly associated with patient perceived outcome of their clinic visit. The secondary aim is to correlate patient perceived outcome with patient self‐rated overall health.MethodsA patient satisfaction survey conducted via phone approximately 3 weeks after the patient's pain clinic visit.ResultsThe response rate was 60.2%; 987 patient surveys collected between 2006 and 2010 were used in the analysis. Four factors were significantly associated with the outcome: (1) Explanations by the physician of the patient's condition and treatment, (2) clear instructions regarding post‐appointment activities, (3) knowing the patient as a person, and (4) the patient's self‐rated health. In terms of the secondary objective, those who answered very good/excellent regarding their self‐rated health had an 87% increased odds of better (very good/excellent) outcome of their pain clinic visit (or 1.87 times the odds of better outcome) compared with those who answered poor/fair/good.ConclusionsOur results suggest that pain physicians may positively impact patient perceived outcomes of clinic visits by explaining the patient's condition and treatment, providing instructions, and taking the time to understand the patient and their values.
Surgeon Fatigue and Postural Stability: Is Robotic Better Than Laparoscopic Surgery?
Butler, Kristina , Kapetanakis, Vasilis, Smith, Benn E., Sanjak, Mohammed, Verheijde, Joseph L., Magtibay, Paul M. , Magrina, Javier F. , Chang, Yu‐Hui

Mayo Clinic

Journal of Laparoendoscopic & Advanced Surgical Techniques | February 14, 2013 | Volume: 23 | Issue: 4 | Pages: 343-346

10.1089/lap.2012.0531 | PMID 23410117 Get It

Clinical Specificity of the Enzyme Immunoassay Test for Coccidioidomycosis Varies According to the Reason for Its Performance
Blair, Janis E. , Mendoza, Neil, Force, Shannon, Grys, Thomas E. , Chang, Yu‐Hui , Grys, Thomas E

Mayo Clinic

Clinical and Vaccine Immunology | November 17, 2012 | Volume: 20 | Issue: 1 | Pages: 95-98

10.1128/cvi.00531-12 | PMID 23155124 Get It

ABSTRACT The diagnosis of coccidioidomycosis relies heavily on serologic test results in addition to clinical history, physical examination, and radiographic findings. Use of the enzyme immunoassay (EIA) has increased because it is rapidly performed and does not require referral to a reference laboratory, as do complement fixation and immunodiffusion tests. However, interpretation of immunoglobulin M (IgM) reactivity by EIA in the absence of immunoglobulin G (IgG) reactivity has been problematic. We conducted a retrospective medical record review of all patients with such IgM reactivity at our institution to identify situations where the finding was more likely to be clinically specific for coccidioidal infection. From 1 January 2004 through 31 December 2008, a total of 1,117 patients had positive EIA coccidioidal serology or EIA IgM-only reactivity; of these, 102 patients (9%) had EIA IgM-only reactivity. Among the 102 patients with EIA IgM-only reactivity, 60 were tested to evaluate symptomatic illness, 13 for follow-up of previously abnormal serology, and 29 for screening purposes. Of the 102 patients, 80 (78%) had positive serologic findings by other methods or had positive culture or histology. Fifty-four (90%) of the 60 patients whose serology was performed to evaluate symptomatic illness had coccidioidal infection, whereas 13 (45%) of 29 patients whose serology was performed for screening purposes had coccidioidal infection. Of the 102 patients with isolated IgM reactivity by EIA, 12 later seroconverted to IgG and IgM reactivity. The use of EIA for screening in 29 asymptomatic persons was associated with unconfirmable results in 13 (45%). Although the majority of patients in our study with isolated IgM reactivity by EIA had probable or confirmed coccidioidomycosis, this result must be interpreted with caution for asymptomatic patients.
Patient Satisfaction in an Academic Chronic Pain Clinic
Trentman, Terrence L. , Cornidez, Eric, Wilshusen, Laurie , Seamans, David P. , Rosenfeld, David M. , Freeman, John A., Chien, James J., Chang, Yu‐Hui

Mayo Clinic

Pain Practice | October 24, 2012 | Volume: 13 | Issue: 5 | Pages: 372-379

10.1111/papr.12004 | PMID 23094675 Get It

AbstractObjectivesPatient perception of healthcare quality is of growing interest. It has been shown that patient satisfaction is associated with compliance with medical advice and clinical outcome. The 3‐fold purpose of this study was to identify which attributes of the patient–physician interaction most strongly correlated with patients' perceptions of provider quality of care, to identify key drivers that move patients' perception of overall provider quality from “very good” to “excellent,” and to identify features of the pain clinic experience that were most important to patients but were simultaneously perceived as lacking.MethodsRandomized patient satisfaction survey conducted via telephone approximately 3 weeks after the patient's pain clinic visit.ResultsA total of 999 patients participated in the survey over 5 years (estimated response rate 60.2%). Thoroughness, listening, and time spent with the provider were the 3 attributes most strongly associated with the patients' perceptions of provider quality of care, while thoroughness, listening, punctuality, and clear instructions were the drivers of “very good” vs. “excellent” patient perceived overall provider quality. Areas identified for clinic improvement include thoroughness, providing adequate explanations and instructions, and including patient preferences in decision making.ConclusionsThese results may guide pain clinic physicians as they seek to improve patient perceptions of their care and ultimately patient outcomes.