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7719 citation(s) found for "Ma, Daniel".

Multi-Institutional Experience with Robotic Nephrectomy with Inferior Vena Cava Tumor Thrombectomy
Abaza, Ronney , Shabsigh, Ahmad , Castle, Erik P., Rogers, Craig , Menon, Mani, Aron, Monish, Sundaram, Chandru P. , Castle, Erik, Allaf, Mohamad E , Hu, Jim C. , Eun, Daniel

Journal of Urology | November 19, 2015 | Volume: 195 | Issue: 4 Part 1 | Pages: 865-871

10.1016/j.juro.2015.09.094 | PMID 26602891 Get It

Short‐term Quality‐of‐Life Outcomes following Transoral Diverticulotomy for Zenker’s Diverticulum
Abel, Kathryn M. Van , Tombers, Nicole M. , Krein, Kari A., Moore, Eric J. , Kasperbauer, Jan L. , Hinni, Michael L., Ekbom, Dale C. , Van Abel, Kathryn M, Krein, Kari A., Price, Daniel L. , Lott, David G. , Van Abel, Kathryn M

Otolaryngology–Head and Neck Surgery | November 10, 2015 | Volume: 154 | Issue: 2 | Pages: 322-327

10.1177/0194599815616078 | PMID 26556462 Get It

ObjectiveTo prospectively analyze quality‐of‐life outcomes following transoral diverticulotomy with cricopharyngeal myotomy (DCPM) for Zenker’s diverticulum (ZD).Study DesignProspective single‐group study.SettingsTertiary academic institution.Subjects and MethodsA prospective multicenter study performed from January 1, 2012, to July 1, 2014, included 18 patients presenting with ZD undergoing DCPM. Standardized questionnaires—including the 10‐item Eating Assessment Tool (EAT‐10), Functional Outcome of Swallowing Scale (FOSS), and the Reflux Symptom Index (RSI)—were completed preoperatively and at 3 and 6 months postoperatively. Videofluoroscopic studies were obtained and analyzed by our senior speech‐language pathologist, who was blinded to the clinical outcomes.ResultsEighteen patients were included (11 women; mean age, 72.6 years; range, 53‐86 years). All patients had ZD on preoperative videofluoroscopic swallowing studies. The most common comorbidities included hypertension (10 of 18, 55.6%), dyslipidemia (8 of 18, 44.4%), hiatal hernia (6 of 18, 33.3%), and gastroesophageal reflux disease (5 of 18, 27.8%). Median preoperative RSI was 27 (interquartile range [IQR], 22.5‐31.5); FOSS, 2 (IQR, 2‐3); and EAT‐10, 21.5 (IQR, 13.5‐27.5). The 3‐month questionnaire (88.9% completion) demonstrated an improved median RSI of 5 (IQR, 1‐7.5; P <. 001), FOSS of 0 (IQR, 0; P <. 001), and EAT‐10 of 0 (IQR, 0‐3; P <. 001). Fourteen patients (77.8%) completed the 6‐month questionnaire, demonstrating a median RSI of 4 (IQR, 0‐8), FOSS of 0 (IQR, 0‐0.5), and EAT‐10 of 1 (IQR, 0‐3). While regurgitation decreased following surgery (P =. 007), nighttime cough did not (P =. 25).ConclusionThis study supports an improvement in functional outcome and quality of life in patients with ZD undergoing DCPM.
Endosomal sorting of Notch receptors through COMMD9-dependent pathways modulates Notch signaling
Li, Haiying , Koo, Yeon, Mao, Xicheng , Sifuentes-Dominguez, Luis , Morris, Lindsey L. , Jia, Da , Miyata, Naoteru, Faulkner, Rebecca A. , Deursen, Jan M. van , Vooijs, Marc , Billadeau, Daniel D. , Sluis, Bart van de , van Deursen, Jan M, Cleaver, Ondine B. , Burstein, Ezra , Jia, Da , van de Sluis, Bart

Journal of Cell Biology | November 9, 2015 | Volume: 211 | Issue: 3 | Pages: 605-617

10.1083/jcb.201505108 | PMID 26553930 Get It

Notch family members are transmembrane receptors that mediate essential developmental programs. Upon ligand binding, a proteolytic event releases the intracellular domain of Notch, which translocates to the nucleus to regulate gene transcription. In addition, Notch trafficking across the endolysosomal system is critical in its regulation. In this study we report that Notch recycling to the cell surface is dependent on the COMMD–CCDC22–CCDC93 (CCC) complex, a recently identified regulator of endosomal trafficking. Disruption in this system leads to intracellular accumulation of Notch2 and concomitant reduction in Notch signaling. Interestingly, among the 10 copper metabolism MURR1 domain containing (COMMD) family members that can associate with the CCC complex, only COMMD9 and its binding partner, COMMD5, have substantial effects on Notch. Furthermore, Commd9 deletion in mice leads to embryonic lethality and complex cardiovascular alterations that bear hallmarks of Notch deficiency. Altogether, these studies highlight that the CCC complex controls Notch activation by modulating its intracellular trafficking and demonstrate cargo-specific effects for members of the COMMD protein family.
2015 American College of Rheumatology Guideline for the Treatment of Rheumatoid Arthritis
Singh, Jasvinder A. , Bridges, S. Louis , Bannuru, Raveendhara R. , Sullivan, Matthew C. , Vaysbrot, Elizaveta E., McNaughton, Christine, Osani, Mikala C. , Parks, Deborah, Kavanaugh, Arthur, O’Dell, James R., Leong, Amye , Matteson, Eric L. , Drevlow, Barbara E., Ginsberg, Seth, Grober, James, Clair, E. William St. , Tindall, Elizabeth A., Miller, Amy S., Saag, Kenneth G. , Akl, Elie A. , Shmerling, Robert H. , Curtis, Jeffrey R. , Furst, Daniel E. , King, Charles M. , Schousboe, John T. , Grober, James, McAlindon, Timothy E. , Singh, Jasvinder A , Bannuru, Raveendhara R

Arthritis Care & Research | November 6, 2015 | Volume: 68 | Issue: 1 | Pages: 1-25

10.1002/acr.22783 | PMID 26545825 Get It

ObjectiveTo develop a new evidence‐based, pharmacologic treatment guideline for rheumatoid arthritis (RA).MethodsWe conducted systematic reviews to synthesize the evidence for the benefits and harms of various treatment options. We used the Grading of Recommendations Assessment, Development and Evaluation (GRADE) methodology to rate the quality of evidence. We employed a group consensus process to grade the strength of recommendations (either strong or conditional). A strong recommendation indicates that clinicians are certain that the benefits of an intervention far outweigh the harms (or vice versa). A conditional recommendation denotes uncertainty over the balance of benefits and harms and/or more significant variability in patient values and preferences.ResultsThe guideline covers the use of traditional disease‐modifying antirheumatic drugs (DMARDs), biologic agents, tofacitinib, and glucocorticoids in early (<6 months) and established (≥6 months) RA. In addition, it provides recommendations on using a treat‐to‐target approach, tapering and discontinuing medications, and the use of biologic agents and DMARDs in patients with hepatitis, congestive heart failure, malignancy, and serious infections. The guideline addresses the use of vaccines in patients starting/receiving DMARDs or biologic agents, screening for tuberculosis in patients starting/receiving biologic agents or tofacitinib, and laboratory monitoring for traditional DMARDs. The guideline includes 74 recommendations: 23% are strong and 77% are conditional.ConclusionThis RA guideline should serve as a tool for clinicians and patients (our two target audiences) for pharmacologic treatment decisions in commonly encountered clinical situations. These recommendations are not prescriptive, and the treatment decisions should be made by physicians and patients through a shared decision‐making process taking into account patients’ values, preferences, and comorbidities. These recommendations should not be used to limit or deny access to therapies.
2015 American College of Rheumatology Guideline for the Treatment of Rheumatoid Arthritis
Singh, Jasvinder A. , Bridges, S. Louis , Bannuru, Raveendhara R. , Sullivan, Matthew C. , Vaysbrot, Elizaveta E., McNaughton, Christine, Osani, Mikala C. , Parks, Deborah, Kavanaugh, Arthur, O’Dell, James R., Leong, Amye , Matteson, Eric L. , Drevlow, Barbara E., Ginsberg, Seth, Grober, James, Clair, E. William St. , Tindall, Elizabeth A., Miller, Amy S., McAlindon, Timothy E. , Saag, Kenneth G. , Akl, Elie A. , Shmerling, Robert H. , Curtis, Jeffrey R. , Furst, Daniel E. , King, Charles M. , Schousboe, John T. , Grober, James, Singh, Jasvinder A , Bannuru, Raveendhara R

Arthritis & Rheumatology | November 6, 2015 | Volume: 68 | Issue: 1 | Pages: 1-26

10.1002/art.39480 | PMID 26545940 Get It

Objective To develop a new evidence‐based, pharmacologic treatment guideline for rheumatoid arthritis (RA). Methods We conducted systematic reviews to synthesize the evidence for the benefits and harms of various treatment options. We used the Grading of Recommendations Assessment, Development and Evaluation (GRADE) methodology to rate the quality of evidence. We employed a group consensus process to grade the strength of recommendations (either strong or conditional). A strong recommendation indicates that clinicians are certain that the benefits of an intervention far outweigh the harms (or vice versa). A conditional recommendation denotes uncertainty over the balance of benefits and harms and/or more significant variability in patient values and preferences. Results The guideline covers the use of traditional disease‐modifying antirheumatic drugs (DMARDs), biologic agents, tofacitinib, and glucocorticoids in early (<6 months) and established (≥6 months) RA. In addition, it provides recommendations on using a treat‐to‐target approach, tapering and discontinuing medications, and the use of biologic agents and DMARDs in patients with hepatitis, congestive heart failure, malignancy, and serious infections. The guideline addresses the use of vaccines in patients starting/receiving DMARDs or biologic agents, screening for tuberculosis in patients starting/receiving biologic agents or tofacitinib, and laboratory monitoring for traditional DMARDs. The guideline includes 74 recommendations: 23% are strong and 77% are conditional. Conclusion This RA guideline should serve as a tool for clinicians and patients (our two target audiences) for pharmacologic treatment decisions in commonly encountered clinical situations. These recommendations are not prescriptive, and the treatment decisions should be made by physicians and patients through a shared decision‐making process taking into account patients’ values, preferences, and comorbidities. These recommendations should not be used to limit or deny access to therapies.
A systematic review of clinical outcomes for patients diagnosed with skin cancer spinal metastases
Goodwin, C. Rory , Sankey, Eric W. , Liu, Ann , Elder, Benjamin D. , Kosztowski, Thomas, Lo, Sheng-Fu Larry , Fisher, Charles G. , Gokaslan, Ziya L. , Sciubba, Daniel M. , Clarke, Michelle J. , Goodwin, C Rory

Journal of Neurosurgery: Spine | November 6, 2015 | Volume: 24 | Issue: 5 | Pages: 837-849

10.3171/2015.4.spine15239 | PMID 26544595 Get It

OBJECT Surgical procedures and/or adjuvant therapies are effective modalities for the treatment of symptomatic spinal metastases. However, clinical results specific to the skin cancer spinal metastasis cohort are generally lacking. The purpose of this study was to systematically review the literature for treatments, clinical outcomes, and survival following the diagnosis of a skin cancer spinal metastasis and evaluate prognostic factors in the context of spinal skin cancer metastases stratified by tumor subtype. METHODS The authors performed a literature review using PubMed, Embase, CINAHL, and Web of Science to identify articles since 1950 that reported survival, clinical outcomes, and/or prognostic factors for the skin cancer patient population with spinal metastases. The methodological quality of reviews was assessed using the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) tool. RESULTS Sixty-five studies met the preset criteria and were included in the analysis. Of these studies, a total of 25, 40, 25, and 12 studies included patients who underwent some form of surgery, radiotherapy, chemotherapy, or observation alone, respectively. Sixty-three of the 65 included studies were retrospective in nature (Class of Evidence [CoE] IV), and the 2 prospective studies were CoE II. Based on the studies analyzed, the median overall survival for a patient with a spinal metastasis from a primary skin malignancy is 4.0 months; survival by tumor subtype is 12.5 months for patients with basal cell carcinoma (BCC), 4.0 months for those with melanoma, 4.0 months for those with squamous cell carcinoma, 3.0 months for those with pilomatrix carcinoma, and 1.5 months for those with Merkel cell carcinoma (p < 0.0001). The overall percentage of known continued disease progression after spine metastasis diagnosis was 40.1% (n = 244/608, range 25.0%–88.9%), the rate of known recurrence of the primary skin cancer lesion was 3.5% (n = 21/608, range 0.2%–100.0%), and the rate of known spine metastasis recurrence despite treatment for all skin malignancies was 2.8% (n = 17/608, range 0.0%–33.3%). Age greater than 65 years, sacral spinal involvement, presence of a neurological deficit, and nonambulatory status were associated with decreased survival in patients diagnosed with a primary skin cancer spinal metastasis. All other clinical or prognostic parameters were of low or insufficient strength. CONCLUSIONS Patients diagnosed with a primary skin cancer metastasis to the spine have poor overall survival with the exception of those with BCC. The median duration of survival for patients who received surgical intervention alone, medical management (chemotherapy and/or radiation) alone, or the combination of therapies was similar across interventions. Age, spinal region, and neurological status may be associated with poor survival following surgery.
Improvement in Quality of Life after Therapy for Mycobacterium abscessus Group Lung Infection. A Prospective Cohort Study
Czaja, Christopher A. , Levin, Adrah, Cox, Christian W. , Daley, Charles L. , Cott, Gary R., Vargas, Daniel

Annals of the American Thoracic Society | November 5, 2015 | Volume: 13 | Issue: 1 | Pages: 40-48

10.1513/annalsats.201508-529oc | PMID 26540302 Get It

Abstract Rationale Mycobacterium abscessus group lung infection is characterized by low cure rates. Improvement in quality of life may be a reasonable treatment goal. Objectives The objective of this study was to evaluate change in quality of life in response to therapy, predictors of improvement in quality of life, and association of quality of life with traditional outcome measures. Methods Forty-seven patients were treated for Mycobacterium abscessus group lung infection (including one with Mycobacterium chelonae) and were followed prospectively for 2 years between December 2009 and May 2012. St. George’s Respiratory Questionnaire (SGRQ) was administered, chest computed tomography (CT) imaging was carried out, and culture data were collected at multiple time points. Predictors of improvement in the SGRQ total score greater than or equal to a minimal clinically important difference (MCID) at 12 months were evaluated. Measurements and Main Results: Patients were 85% female and 94% white, with a mean age of 65 years. Nine (20%) had a genetic diagnosis of cystic fibrosis (none F508del homozygous). Coinfection with Mycobacterium avium complex occurred in 28% and Pseudomonas in 26%. Chest CT imaging universally indicated bronchiectasis and nodules; 51% had lung cavities. Treatment included a mean of 17 months of antibiotics, and lung resection in 34%. Seventeen patients with M. avium complex (36%) and one with Mycobacterium kansasii were treated for coinfection. The mean SGRQ total score (SD) at baseline was 35 (20). At all follow-up time points, the mean SGRQ total score (SD) was significantly lower (better) than at baseline: 27 (17) at 3 months, P &lt; 0.01; 27 (19) at 6 months, P &lt; 0.01; 27 (20) at 12 months, P &lt; 0.01; and 30 (22) at 24 months, P = 0.02. At 12 and 24 months, respectively, 60% and 56% had improvement greater than or equal to the MCID in SGRQ total score. Improvement greater than or equal to the MCID at 12 months was positively associated with a history of respiratory exacerbation, isolate susceptible to imipenem-cilastatin, and lung resection surgery, and negatively associated with nodules &gt;4 mm in diameter on chest CT imaging, but these associations were not statistically significant in multivariable analysis. At 24 months, 16 patients (48%) with complete data were culture negative for 1 year and had discontinued M. abscessus group treatment. Conclusions Quality of life was a sensitive indicator of treatment response and has the potential to be a useful parameter to guide treatment.
Thyroplasty in the previously irradiated neck: A case series and short‐term outcomes
White, James R. , Orbelo, Diana M. , Noel, Daniel B., Pittelko, Rebecca L. , Maragos, Nicolas E., Ekbom, Dale C. , Orbelo, Diana

The Laryngoscope | November 3, 2015 | Volume: 126 | Issue: 8 | Pages: 1849-1853

10.1002/lary.25770 | PMID 26526375 Get It

Objectives/HypothesisExternal beam radiation to the neck is widely considered a contraindication for thyroplasty due to concern for infection and implant extrusion. We present a case series of our experience regarding thyroplasty performed in a previously radiated field.Study DesignRetrospective case study at a tertiary academic referral center.MethodsUsing the institution's clinical notes search tool, records from 1999 through 2014 documenting thyroplasty and radiation were identified and reviewed. Patients who received external beam radiation to the operative field prior to thyroplasty were included. Data including duration of radiation, timing and specifics of thyroplasty, postoperative complications, risk factors, clinical voice outcomes, and length of follow‐up were collected.ResultsFourteen patients met criteria for the study. Of all thyroplasty performed, 11 were Silastic implants, two were Gore‐Tex implants, six had concurrent arytenoid adduction, and one was a midline type II thyroplasty. In terms of risk factors for postoperative complications, two were diabetic, none were active smokers, and one had a splenectomy. All patients were given postoperative antibiotics. The median duration of follow‐up after surgery was 14.2 months. No patients were found to have postoperative complications. Pre‐ and postoperative voice data were assessed. Overall, there was improvement in voice outcomes.ConclusionsThyroplasty may be an option for patients who have previously undergone external beam radiation. Short‐term and intermediate outcomes in our patients showed no postoperative complications, and generally voice or dysphagia improved. Careful selection is still warranted when considering thyroplasty in a previously irradiated neck, and long‐term outcomes need further study.Level of Evidence4 Laryngoscope, 126:1849–1853, 2016
CRISP: Catheterization RISk score for pediatrics: A Report from the Congenital Cardiac Interventional Study Consortium (CCISC)
Nykanen, David, Forbes, Thomas J., Du, Wei , Divekar, Abhay , Reeves, Jaxk, Hagler, Donald J. , Fagan, Thomas E. , Pedra, Carlos A. C., Fleming, Gregory A. , Khan, Danyal , Javois, Alexander J., Gruenstein, Daniel H., Qureshi, Shakeel A. , Moore, Phillip, Wax, David H., Moore, Phillip , Wax, David

Catheterization and Cardiovascular Interventions | November 3, 2015 | Volume: 87 | Issue: 2 | Pages: 302-309

10.1002/ccd.26300 | PMID 26527119 Get It

ObjectivesWe sought to develop a scoring system that predicts the risk of serious adverse events (SAE's) for individual pediatric patients undergoing cardiac catheterization procedures.BackgroundSystematic assessment of risk of SAE in pediatric catheterization can be challenging in view of a wide variation in procedure and patient complexity as well as rapidly evolving technology.MethodsA 10 component scoring system was originally developed based on expert consensus and review of the existing literature. Data from an international multi‐institutional catheterization registry (CCISC) between 2008 and 2013 were used to validate this scoring system. In addition we used multivariate methods to further refine the original risk score to improve its predictive power of SAE's. Results: Univariate analysis confirmed the strong correlation of each of the 10 components of the original risk score with SAE attributed to a pediatric cardiac catheterization (P < 0.001 for all variables). Multivariate analysis resulted in a modified risk score (CRISP) that corresponds to an increase in value of area under a receiver operating characteristic curve (AUC) from 0.715 to 0.741.ConclusionThe CRISP score predicts risk of occurrence of an SAE for individual patients undergoing pediatric cardiac catheterization procedures. © 2015 Wiley Periodicals, Inc.
A Heritable Missense Polymorphism in CDKN2A Confers Strong Risk of Childhood Acute Lymphoblastic Leukemia and Is Preferentially Selected during Clonal Evolution
Walsh, Kyle M. , Smith, Adam J. de , Hansen, Helen M. , Smirnov, Ivan, Gonseth, Semira , Endicott, Alyson , Xiao, Jianqiao, Rice, Terri, Fu, Cecilia, McCoy, Lucie , Eckel‐Passow, Jeanette E. , Jenkins, Robert B. , Wrensch, Margaret , Metayer, Catherine , Wiemels, Joseph L. , Lachance, Daniel Honore , Wiencke, John K. , Ma, Xiaomei

Cancer Research | November 2, 2015 | Volume: 75 | Issue: 22 | Pages: 4884-4894

10.1158/0008-5472.can-15-1105 | PMID 26527286 Get It

Abstract Genome-wide association studies (GWAS) have identified SNPs in six genes that are associated with childhood acute lymphoblastic leukemia (ALL). A lead SNP was found to occur on chromosome 9p21.3, a region that is deleted in 30% of childhood ALLs, suggesting the presence of causal polymorphisms linked to ALL risk. We used SNP genotyping and imputation-based fine-mapping of a multiethnic ALL case–control population (Ncases = 1,464, Ncontrols = 3,279) to identify variants of large effect within 9p21.3. We identified a CDKN2A missense variant (rs3731249) with 2% allele frequency in controls that confers three-fold increased risk of ALL in children of European ancestry (OR, 2.99; P = 1.51 × 10−9) and Hispanic children (OR, 2.77; P = 3.78 × 10−4). Moreover, of 17 patients whose tumors displayed allelic imbalance at CDKN2A, 14 preferentially retained the risk allele and lost the protective allele (PBinomial = 0.006), suggesting that the risk allele provides a selective advantage during tumor growth. Notably, the CDKN2A variant was not significantly associated with melanoma, glioblastoma, or pancreatic cancer risk, implying that this polymorphism specifically confers ALL risk but not general cancer risk. Taken together, our findings demonstrate that coding polymorphisms of large effect can underlie GWAS “hits” and that inherited polymorphisms may undergo directional selection during clonal expansion of tumors. Cancer Res; 75(22); 4884–94. ©2015 AACR.