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

Long-term clinical outcomes following 3- and 4-level anterior cervical discectomy and fusion
Ramos, Rafael De la Garza , Ramhmdani, Seba , Kosztowski, Thomas, Bydon, Mohamad , Sciubba, Daniel M. , Wolinsky, Jean‐Paul , Witham, Timothy F. , Gokaslan, Ziya L. , Bydon, Ali , Xu, Risheng , De la Garza Ramos, Rafael

Journal of Neurosurgery: Spine | February 19, 2016 | Volume: 24 | Issue: 6 | Pages: 885-891

10.3171/2015.10.spine15795 | PMID 26895527 Get It

OBJECTIVE The purpose of this study was to report the long-term clinical outcomes following 3- and 4-level anterior cervical discectomy and fusion (ACDF). METHODS A retrospective review of all adult neurosurgical patients undergoing elective ACDF for degenerative disease at a single institution between 1996 and 2013 was performed. Patients who underwent first-time 3- or 4-level ACDF were included; patients with previous cervical spine surgery, those undergoing anterior/posterior approaches, and those with corpectomy were excluded. Outcome measures included perioperative complication rates, fusion rates, need for revision surgery, Nurick Scores, Odom's criteria, symptom resolution, neck visual analog scale (VAS) pain score, and persistent narcotics usage. RESULTS Seventy-one patients who underwent 3-level ACDF and 26 patients who underwent 4-level ACDF were identified and followed for an average of 7.6 ± 4.2 years. There was 1 case (3.9%) of deep wound infection in the 4-level group and 1 case in the 3-level group (1.4%; p = 0.454). Postoperatively, 31% of patients in the 4-level group complained of dysphagia, compared with 12.7% in the 3-level group (p = 0.038). The fusion rate was 84.6% after 4-level ACDF and 94.4% after 3-level ACDF (p = 0.122). At last follow-up, a significantly higher proportion of patients in the 4-level group continued to have axial neck pain (53.8%) than in the 3-level group (31%; p = 0.039); the daily oral morphine equivalent dose was significantly higher in the 4-level group (143 ± 97 mg/day) than in the 3-level group (25 ± 10 mg/day; p = 0.030). Outcomes based on Odom's criteria were also different between cohorts (p = 0.044), with a significantly lower proportion of patients in the 4-level ACDF group experiencing an excellent/good outcome. CONCLUSIONS In this study, patients who underwent 4-level ACDF had significantly higher rates of dysphagia, postoperative neck pain, and postoperative narcotic usage when compared with patients who underwent 3-level ACDF. Pseudarthrosis and deep wound infection rates were also higher in the 4-level group, although this did not reach statistical significance. Additionally, a smaller proportion of patients achieved a good/excellent outcome in the 4-level group than in the 3-level group. These findings suggest a significant increase of perioperative morbidity and worsened outcomes for patients who undergo 4- versus 3-level ACDF.
Outcomes of artificial urinary sphincter placement in octogenarians
Ziegelmann, Matthew , Linder, Brian J. , Rivera, Marcelino , Viers, Boyd R. , Rangel, Laureano J. , Elliott, Daniel S. , Ziegelmann, Matthew J, Rivera, Marcelino E, Linder, Brian J , Viers, Boyd R

International Journal of Urology | February 18, 2016 | Volume: 23 | Issue: 5 | Pages: 419-423

10.1111/iju.13062 | PMID 26890355 Get It

ObjectiveTo evaluate the impact of patient age on device outcomes among patients undergoing primary artificial urinary sphincter.MethodsA total of 1081 male patients who underwent primary artificial urinary sphincter placement from 1983 to 2011 were analyzed, including 91 men (8%) who were aged >80 years at the time of surgery. Revisions and explanations were compared between men stratified by decade of life. Hazard ratios adjusting for competing risks were used to determine the association with age and artificial urinary sphincter device outcomes (infection/erosion, urethral atrophy and malfunction), while overall device failure was estimated using Kaplan–Meier and Cox regression analysis.ResultsPatients aged >80 years were more likely to have coronary disease (P = 0.009), diabetes mellitus (P = 0.04), hypertension (P = 0.002) and lower body mass index (P < 0.0001). On multivariable analysis, patients aged >80 years were significantly more likely to experience device erosion or infection compared with a reference of patients aged <60 years (hazard ratio 4.13; P = 0.046), whereas there was no difference in those patients aged 60–70 years or 70–80 years compared with the reference group (P = 0.56 and 0.45). There was no significant difference in overall device survival between the age‐stratified groups (P = 0.26).ConclusionsAlthough overall artificial urinary sphincter device survival is similar, patients aged >80 years are more likely to experience erosion or infection compared with younger patients. Despite this, the overall device failure rate is low, and artificial urinary sphincter might be considered for appropriately selected and counseled octogenarians.
Spur cell anemia in the setting of progressive liver allograft failure
Partain, Daniel K. , Poterucha, John J., Ashrani, Aneel A. , Thompson, Carrie A. , Botero, Juliana Perez , Shi, Min , Partain, Daniel K

American Journal of Hematology | February 14, 2016 | Volume: 91 | Issue: 10 | Pages: 1061-1061

10.1002/ajh.24331 | PMID 26874796 Get It

Increased Operative Time for Benign Cranial Nerve Tumor Resection Correlates with Increased Morbidity Postoperatively
Murphy, Meghan E. , Gilder, Hannah E., McCutcheon, Brandon A., Kerezoudis, Panagiotis , Rinaldo, Lorenzo , Shepherd, Daniel , Maloney, Patrick R. , Snyder, Kendall, Carlson, Matthew L. , Link, Michael J., Bydon, Mohamad , Murphy, Meghan, Gilder, Hannah, Maloney, Patrick , Van Gompel, Jamie J, Carter, Bob S. , Gompel, Jamie J. Van

Journal of Neurological Surgery Part B: Skull Base | February 13, 2016 | Volume: 77 | Issue: 04 | Pages: 350-357

10.1055/s-0036-1572508 | PMID 27441161 Get It

Evaluation of Clinical Outcomes of Osseointegrated Dental Implantation of Fibula Free Flaps for Mandibular Reconstruction
Jackson, Ryan S. , Arce, Kevin , Moore, Eric J. , Price, Daniel L.

JAMA Facial Plastic Surgery | February 11, 2016 | Volume: 18 | Issue: 3 | Pages: 201-206

10.1001/jamafacial.2015.2271 | PMID 26868226 Get It

Determinants of Early Mortality Among 37,568 Patients With Colon Cancer Who Participated in 25 Clinical Trials From the Adjuvant Colon Cancer Endpoints Database
Renfro, Lindsay A. , Kerr, David , Gramont, Aimery de , André, Thierry , Guthrie, Katherine A. , Labianca, Roberto , Francini, Guido, Seitz, J. F., O’Callaghan, Chris J. , Twelves, Chris , Haller, Daniel G. , Yothers, Greg , Cheung, Winson Y, de Gramont, Aimery, Saltz, Leonard B. , O'Callaghan, Chris, van Cutsem, Eric, Cheung, Winson Y. , Grothey, Axel , Alberts, Steven R. , Cutsem, Eric Van , Sargent, Daniel J. , André, Thierry , Yothers, Greg

Journal of Clinical Oncology | February 9, 2016 | Volume: 34 | Issue: 11 | Pages: 1182-1189

10.1200/jco.2015.65.1158 | PMID 26858337 Get It

Purpose Factors associated with early mortality after surgery and treatment with adjuvant chemotherapy in colon cancer are poorly understood. We aimed to characterize the determinants of early mortality in a large cohort of colon cancer trial participants. Methods A pooled analysis of 37,568 patients in 25 randomized trials of adjuvant systemic therapy was conducted. Multivariable logistic regression models with several definitions of early mortality (30, 60, and 90 days, and 6 months) were constructed, adjusting for clinically and statistically significant variables. A nomogram for 6-month mortality was developed and validated. Results Median age among patients was 61 years, patient demographics included 54% men and 90% White, 29% and 71% had stage II and III disease, respectively, and 79%, 20%, and 1% had an Eastern Cooperative Oncology Group performance status (PS) of 0, 1, and ≥ 2, respectively. Early mortality was low: 0.3% at 30 days, 0.6% at 60 days, 0.8% at 90 days, and 1.4% at 6 months. Of those patients who died by 6 months post–random assignment, 40% had documented disease recurrence prior to death. Early disease recurrence was associated with a markedly increased risk of death during the first 6 months post-treatment (hazard ratio, 82.6; 95%CI, 66.9 to 102.1). In prognostic analyses, advanced age, male sex, poorer PS, increasing ratio of positive to examined lymph nodes, earlier decade of enrollment, and higher tumor stage and grade predicted a greater likelihood of early mortality, whereas treatment received was not strongly predictive. A multivariable model for 6-month mortality showed strong optimism-adjusted discrimination (concordance index, 0.73) and calibration. Conclusion Early mortality was infrequent but more prevalent in patients with advanced age and a PS of ≥ 2, underscoring the need to carefully consider the risk-to-benefit ratio when making treatment decisions in these subgroups.
Understanding inherited genetic risk of adult glioma – a review
Rice, Terri, Molinaro, Annette M. , Eckel‐Passow, Jeanette E. , Walsh, Kyle M. , Barnholtz‐Sloan, Jill S. , Francis, Stephen , Wiemels, Joseph L. , Jenkins, Robert B. , Wrensch, Margaret , Barnholtz-Sloan, Jill, Francis, Stephen S, Wiemels, Joseph, Wiencke, John K. , Wrensch, Margaret R, Lachance, Daniel Honore , Molinaro, Annette M. , Ostrom, Quinn T. , Barnholtz-Sloan, Jill S , Francis, Stephen S

Neuro-Oncology Practice | February 8, 2016 | Volume: 3 | Issue: 1 | Pages: 10-16

10.1093/nop/npv026 | PMID 26941959 Get It

Abstract During the past six years, researchers have made major progress identifying common inherited genetic variation that increases risk for primary adult glioma. This paper summarizes knowledge about rare familial cancer syndromes that include adult glioma and reviews the available literature on the more recently discovered common inherited variation. Ten independent inherited variants in eight chromosomal regions have been convincingly associated with increased risk for adult glioma. Most of these variants increase relative risk of primary adult glioma by 20% to 40%, but the TP53 variant rs78378222 confers a two-fold relative risk (ie, 200%), and rs557505857 on chromosome 8 confers a six-fold relative risk of IDH-mutated astrocytomas and oligodendroglial tumors (ie, 600%). Even with a six-fold relative risk, the overall risk of developing adult glioma is too low for screening for the high-risk variant on chromosome 8. Future studies will help clarify which inherited adult glioma risk variants are associated with subtypes defined by histology and/or acquired tumor mutations. This review also provides an information sheet for primary adult glioma patients and their families.
Stress-coping skills and neuroticism in apical ballooning syndrome (Takotsubo/stress cardiomyopathy)
Rohe, Daniel E. , Best, Patricia J.M. , Lennon, Ryan J. , Scantlebury, Dawn C. , Lennon, Ryan J. , Lerman, Amir , Prasad, Abhiram

Open Heart | February 5, 2016 | Volume: 3 | Issue: 1 | Pages: e000312

10.1136/openhrt-2015-000312 | PMID 26870388 Get It

Introduction Apical ballooning syndrome (ABS) is typically associated with an antecedent stressful situation. Affected patients have been reported to have higher frequencies of premorbid affective disorders. We hypothesised that patients with ABS would have elevated levels of neuroticism (tendency to experience negative affect) and greater vulnerability to stress. Methods In this cross-sectional study, all active participants in the Mayo Clinic ABS prospective follow-up registry were invited to complete the third edition of the NEO Personality Inventory (NEO-PI-3). The NEO-PI-3 is the universally accepted measure of the ‘Five-Factor Model’ of personality. Inventory responses were scored using the NEO-PI-3 computer program and the data were compared with US normative sample used in standardisation of the inventory. Significance was set at 0.0014 to account for multiple comparisons. Results Of 106 registry participants approached, 53 completed the inventory. There was no difference in age, gender, time from ABS diagnosis, type of antecedent stressor (emotional, physical or none) or severity of initial illness between the responders and non-responders. Responders had mean Neuroticism T-scores of 48.0±10.6 (95% CI 45.1 to 50.9); p=0.18, when compared with the normal mean of 50. There was also no significant difference in the facet scale of Vulnerability: 46.9±8.4 (44.6 to 49.2), p=0.038, at α=0.0014. Conclusions Contrary to our hypothesis, patients with ABS do not manifest higher levels of neuroticism and do not have greater vulnerability to stress than the general population. These findings have implications for the clinicians’ perception of, and approach to, patients with ABS.
The Dohner fluorescence in situ hybridization prognostic classification of chronic lymphocytic leukaemia (CLL): the CLL Research Consortium experience
Dyke, Daniel L. Van , Werner, Lillian , Rassenti, Laura Z., Ghia, Emanuella, Heerema, Nyla A. , Cin, Paola Dal , Aquila, Marie Dell, Sreekantaiah, Chandrika, Greaves, Andrew, Van Dyke, Daniel L, Neuberg, Donna , Kipps, Thomas J. , Kay, Neil E.

British Journal of Haematology | February 5, 2016 | Volume: 173 | Issue: 1 | Pages: 105-113

10.1111/bjh.13933 | PMID 26848054 Get It

SummaryThis study revisited the Dohner prognostic hierarchy in a cohort of 1585 well‐documented patients with chronic lymphocytic leukaemia. The duration of both time to first treatment (TTFT) and overall survival (OS) were significantly longer than observed previously, and this is at least partly due to improved therapeutic options. Deletion 13q remains the most favourable prognostic group with median TTFT and OS from fluorescence in situ hybridization (FISH) testing of 72 months and >12 years, respectively. Deletion 11q had the poorest median TTFT (22 months) and 17p deletion the poorest median OS (5 years). The percentages of abnormal nuclei were significantly associated with differential TTFT for the trisomy 12, 13q and 17p deletion cohorts but not for the 11q deletion cohort. From the date of the first FISH study, patients with >85% 13q deletion nuclei had a notably shorter TTFT (24 months). Patients with ≤20% 17p deletion nuclei had longer median TTFT and OS from the date of the first FISH study (44 months and 11 years), and were more likely to be IGHV mutated.
Approaching a Scientific Consensus on the Association between Allergies and Glioma Risk: A Report from the Glioma International Case-Control Study
Amirian, E. Susan , Zhou, Renke, Wrensch, Margaret , Olson, Sara H. , Scheurer, Michael E. , Armstrong, Georgina , McCoy, Lucie , Lau, Ching C., Claus, Elizabeth B. , Barnholtz‐Sloan, Jill S. , Schildkraut, Joellen M. , Ali‐Osman, Francis, Sadetzki, Siegal , Johansen, Christoffer , Houlston, Richard S. , Jenkins, Robert B. , Bernstein, Jonine L. , Merrell, Ryan , Davis, Faith G., Lai, Rose , Shete, Sanjay , Melin, Beatrice , Bondy, Melissa L. , Lachance, Daniel, Il’yasova, Dora , Lachance, Daniel Honore , Armstrong, Georgina , Amos, Christopher I. , Houlston, Richard S , Barnholtz-Sloan, Jill S

Cancer Epidemiology, Biomarkers & Prevention | February 5, 2016 | Volume: 25 | Issue: 2 | Pages: 282-290

10.1158/1055-9965.epi-15-0847 | PMID 26908595 Get It

Abstract Background: Several previous studies have found inverse associations between glioma susceptibility and a history of allergies or other atopic conditions. Some evidence indicates that respiratory allergies are likely to be particularly relevant with regard to glioma risk. Using data from the Glioma International Case-Control Study (GICC), we examined the effects of respiratory allergies and other atopic conditions on glioma risk. Methods: The GICC contains detailed information on history of atopic conditions for 4,533 cases and 4,171 controls, recruited from 14 study sites across five countries. Using two-stage random-effects restricted maximum likelihood modeling to calculate meta-analysis ORs, we examined the associations between glioma and allergy status, respiratory allergy status, asthma, and eczema. Results: Having a history of respiratory allergies was associated with an approximately 30% lower glioma risk, compared with not having respiratory allergies (mOR, 0.72; 95% confidence interval, 0.58–0.90). This association was similar when restricting to high-grade glioma cases. Asthma and eczema were also significantly protective against glioma. Conclusion: A substantial amount of data on the inverse association between atopic conditions and glioma has accumulated, and findings from the GICC study further strengthen the existing evidence that the relationship between atopy and glioma is unlikely to be coincidental. Impact: As the literature approaches a consensus on the impact of allergies in glioma risk, future research can begin to shift focus to what the underlying biologic mechanism behind this association may be, which could, in turn, yield new opportunities for immunotherapy or cancer prevention. Cancer Epidemiol Biomarkers Prev; 25(2); 282–90. ©2016 AACR.