Research Topics
| Melinda A MaggardSummaryAffiliation: University of California Country: USA Publications
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Publications
Indications for performing carpal tunnel surgery: clinical quality measuresMelinda A Maggard
Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, Calif 90095, USA
Plast Reconstr Surg 126:169-79. 2010..Rates of carpal tunnel surgery vary for unclear reasons. In this study, the authors developed measures determining when surgery is necessary (benefits exceed risks), inappropriate (risks outweigh benefits), or optional...
Quality indicators in bariatric surgery: improving quality of careMelinda A Maggard
Department of Surgery, David Geffen School of Medicine at University of California, Los Angeles, CA, USA
Surg Obes Relat Dis 2:423-9; discussion 429-30. 2006..There is a need to standardize the processes of care in this specialty, and, as an attempt to do so, quality indicators were developed...- Beyond the clinical trials: how often is sentinel lymph node dissection performed for breast cancer?Melinda A Maggard
UCLA School of Medicine, Robert Wood Johnson VA Clinical Scholars Program, 911 Broxton Avenue, 3rd Floor, Los Angeles, California 90024, USA
Ann Surg Oncol 12:41-7. 2005..Until recently, SLND was limited to clinical trials. Because this technique is now offered outside of trials, its prevalence is unknown... - Meta-analysis: surgical treatment of obesityMelinda A Maggard
Southern California Evidence Based Practice Center, RAND Health Division, Santa Monica, California, USA
Ann Intern Med 142:547-59. 2005..Controversy exists regarding the effectiveness of surgery for weight loss and the resulting improvement in health-related outcomes... 
Updated population-based review of carcinoid tumorsMelinda A Maggard
Robert Wood Johnson VA Clinical Scholars Program, UCLA School of Medicine, Los Angeles, California, USA
Ann Surg 240:117-22. 2004..To determine the population-based incidence, anatomic distribution, and survival rates of gastrointestinal carcinoid tumors...- Are 12 nodes needed to accurately stage T1 and T2 colon cancers?Melinda A Maggard
Department of Surgery, Geffen School of Medicine at UCLA, 10833 Le Conte Ave, Los Angeles, CA 90095, USA
Dig Dis Sci 54:640-7. 2009..For T1 tumors, 4 nodes had 24% lower hazard of death compared to <4. For T2 tumors, 10 nodes had the biggest survival impact, 15% lower hazard of death. In conclusion, the number of nodes to stage T1 and T2 lesions may be <12... - Pregnancy and fertility following bariatric surgery: a systematic reviewMelinda A Maggard
RAND Corporation, Santa Monica, California, USA
JAMA 300:2286-96. 2008..Use of bariatric surgery has increased dramatically during the past 10 years, particularly among women of reproductive age... - Do young breast cancer patients have worse outcomes?Melinda A Maggard
Robert Wood Johnson VA Clinical Scholars Program, Department of Surgery, UCLA School of Medicine, Los Angeles, California 90095, USA
J Surg Res 113:109-13. 2003.... - Age stratified, perioperative, and one-year mortality after abdominal aortic aneurysm repair: a statewide experienceDavid A Rigberg
Center for Surgical Outcomes and Quality, UCLA School of Medicine, West Los Angeles Veterans Administration Medical Center, Los Angeles, CA, USA
J Vasc Surg 43:224-9. 2006..Age stratification could provide clinicians with information more applicable to an individual patient than overall mortality figures... - Are survival rates different for young and older patients with rectal cancer?Jessica B O'Connell
Department of Surgery, David Geffen School of Medicine, University of California, Los Angeles, California 90095, USA
Dis Colon Rectum 47:2064-9. 2004..This study uses a national-level, population-based cancer registry to compare rectal cancer outcomes between young vs. older populations... - Readmissions following pancreaticoduodenectomy for pancreas cancer: a population-based appraisalIrina Yermilov
Department of Surgery, Greater Los Angeles VA Healthcare System, Los Angeles, CA, USA
Ann Surg Oncol 16:554-61. 2009..Fifty-nine percent of patients were readmitted within 1 year after pancreaticoduodenectomy and 47% were readmitted to a secondary hospital... - Do young colon cancer patients have worse outcomes?Jessica B O'Connell
Department of Surgery, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California 90095, USA
World J Surg 28:558-62. 2004..However, they have equivalent or better 5-year cancer-specific survival compared to older patients. This population-based finding contradicts prior single-institution reports... - Characterizing the performance and outcomes of obesity surgery in CaliforniaJerome H Liu
Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
Am Surg 69:823-8. 2003..Furthermore, this study identifies three independent predictors of complications: gender, comorbidity, and hospital volume. These findings are important initial steps toward improving quality in obesity surgery... - Malignancies of the appendix: beyond case series reportsMarcia L McGory
Department of Surgery, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, California 90095 6904, USA
Dis Colon Rectum 48:2264-71. 2005..A comprehensive analysis was performed for five histologic types of appendiceal tumors to compare incidence, clinicopathologic features, survival, and appropriateness of surgery... - Thirty-day mortality statistics underestimate the risk of repair of thoracoabdominal aortic aneurysms: a statewide experienceDavid A Rigberg
Center for Surgical Outcomes and Quality, UCLA School of Medicine, West Los Angeles Veterans Administration Medical Center, Los Angeles, CA, USA
J Vasc Surg 43:217-22; discussion 223. 2006..These data provide clinicians with information more applicable to an individual patient than mortality figures from a single institutional series... - Survival after resection of ampullary carcinoma: a national population-based studyJessica B O'Connell
Department of Surgery, Geffen School of Medicine at UCLA, CHS, Rm 72 215, 10833 Le Conte Ave, Los Angeles, CA, 90095, USA
Ann Surg Oncol 15:1820-7. 2008..Our objective was to complete a population-based analysis of patients undergoing resection for ampullary carcinoma and compare it with outcomes in the published literature... - The increasing workload of general surgeryJerome H Liu
Department of Surgery, David Geffen School of Medicine at the University of California, Los Angeles, California 90064, USA
Arch Surg 139:423-8. 2004..This aging of the population will lead to new challenges for the US health care system because older individuals are the largest consumers of health care... - Rates of colon and rectal cancers are increasing in young adultsMelinda A Maggard
Department of Surgery, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, California 90095, USA
Am Surg 69:866-72. 2003..Although the overall prevalence is low in this population, the increasing incidence suggests health-care providers should have heightened awareness when caring for this population... - Invasive lobular vs. ductal breast cancer: a stage-matched comparison of outcomesNabil Wasif
John Wayne Cancer Institute at Saint John s Health Center, Santa Monica, CA, USA
Ann Surg Oncol 17:1862-9. 2010..Does delayed diagnosis of ILC affect survival? We used a national registry to compare outcomes of patients with stage-matched ILC and IDC... - A report card on outcomes for surgically treated gastrointestinal cancers: are we improving?Jessica B O'Connell
Department of Surgery, David Geffen School of Medicine at University of California, Los Angeles, 10833 Le Conte Avenue, Room 72 215 CHS, Los Angeles, California 90095, USA
J Surg Res 121:214-21. 2004..This study used two population-based data sets to report on nine surgery-related cancers over the past three decades... - Anal canal cancer: a population-based reappraisalMelinda A Maggard
Robert Wood Johnson VA Clinical Scholars Program, West Los Angeles Veterans Administration, Los Angeles, California, USA
Dis Colon Rectum 46:1517-23; discussion 1523-4; author reply 1524. 2003..The incidence of anal canal cancer is increasing, and overall survival rates are improving. Important disparities in care were identified, which need to be addressed... - What is the rate of small bowel obstruction after colectomy?Janak A Parikh
Department of Surgery, Geffen School of Medicine at UCLA, Los Angeles, California 90095, USA
Am Surg 74:1001-5. 2008..001). One in 10 patients without a history of SBO who undergoes a colectomy will be readmitted at least once in the subsequent 3 years for SBO, and there is a high mortality rate in this group, especially in the elderly... - Cancer-directed surgery for localized disease: decreased use in the elderlyJessica B O'Connell
Department of Surgery, David Geffen School of Medicine, University of California Los Angeles, 10833 Le Conte Avenue, Room 72 215, Los Angeles, CA 90095, USA
Ann Surg Oncol 11:962-9. 2004..Using national data, we examined rates of surgical resection for patients with local-stage cancers... - Workload projections for surgical oncology: will we need more surgeons?David A Etzioni
Department of Surgery, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
Ann Surg Oncol 10:1112-7. 2003..The aim of this study was to quantify the effect of these changes on the demand for oncological procedures... - Accuracy of staging node-negative pancreas cancer: a potential quality measureJames S Tomlinson
Center for Surgical Outcomes and Quality, Department of Surgery, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
Arch Surg 142:767-723; discussion 773-4. 2007..To determine the optimal number of lymph nodes to examine for accurate staging of node-negative pancreatic adenocarcinoma after pancreaticoduodenectomy... - How much do standardized forms improve the documentation of quality of care?Janak A Parikh
Department of Surgery, Geffen School of Medicine at UCLA, Los Angeles, California 90095, USA
J Surg Res 143:158-63. 2007..Chart abstraction is a common method for measuring the quality of surgical care. In this study we examine how the use of standardized operative dictation and history forms improves documentation rates of bariatric quality measures... - Appropriateness criteria for bariatric surgery: beyond the NIH guidelinesIrina Yermilov
Department of Surgery, David Geffen School of Medicine at University of California, Los Angeles, California, USA
Obesity (Silver Spring) 17:1521-7. 2009..Only for the most severe degrees of comorbidities were adolescent and elderly patients deemed appropriate for surgery. Patient selection for bariatric procedures should include consideration of both patient age and comorbidity severity... - Sample size calculations in surgery: are they done correctly?Melinda A Maggard
UCLA School of Medicine and the West Los Angeles Veterans Affairs Medical Center, Los Angeles, CA 90095, USA
Surgery 134:275-9. 2003..quot; To address this issue, we reviewed RCTs published in the surgical literature to determine how often sample size calculations were reported and to analyze each study's ability to detect varying degrees of differences in outcomes... - Trends, patterns, and outcomes in the management of malignant colonic polyps in the general population of the United StatesNabil Wasif
John Wayne Cancer Institute at Saint John s Health Center, Santa Monica, California, USA
Cancer 117:931-7. 2011..The goal of this study was to analyze trends and patterns in the surgical treatment of MPs and to assess outcomes as measured by lymph node retrieval and patient survival... - Inpatient surgery in California: 1990-2000Jerome H Liu
Department of Surgery, David Geffen School of Medicine, University of California, Los Angeles, USA
Arch Surg 138:1106-11; discussion 1111-2. 2003..The practice environment for surgery is changing. However, little is known regarding the trends or current status of inpatient surgery at a population level... - Colon cancer survival rates with the new American Joint Committee on Cancer sixth edition stagingJessica B O'Connell
Department of Surgery, David Geffen School of Medicine at University of California, Los Angeles, 10833 Le Conte Ave, Rm 72 215 CHS, Los Angeles, CA 90095, USA
J Natl Cancer Inst 96:1420-5. 2004..Using nationally representative Surveillance, Epidemiology, and End Results (SEER) data, we compared survival rates associated with colon cancer stages defined according to both AJCC systems... - What proportion of patients with an ostomy (for diverticulitis) get reversed?Melinda A Maggard
Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
Am Surg 70:928-31. 2004..Our study shows that although the majority of patients had their ostomies reversed, over 35 per cent did not at 4-year follow-up. Further studies are required to evaluate how this rate may be improved... - Underuse of axillary dissection for the management of sentinel node micrometastases in breast cancerNabil Wasif
John Wayne Cancer Institute at Saint John s Health Center, 2200 Santa Monica Blvd, Santa Monica, CA 90404, USA
Arch Surg 145:161-6. 2010..Current American Society of Clinical Oncology guidelines for management of sentinel node micrometastases (SNMM) in breast cancer recommend axillary lymph node dissection (ALND) for all patients... - Elderly patients in surgical workloads: a population-based analysisDavid A Etzioni
Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, California 90024, USA
Am Surg 69:961-5. 2003..S. populations will increase dramatically (41% and 35% between 2000 and 2020). To provide the best quality of care, surgeons should embrace research, training, and educational opportunities regarding the treatment of elderly patients... - Using volume criteria: do California hospitals measure up?Jerome H Liu
Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
J Surg Res 113:96-101. 2003..This study analyzes California hospitals within the context of these volume criteria... - Colorectal cancer in the youngJessica B O'Connell
Department of Surgery, University of Texas Southwestern Medical Center at Dallas, Dallas, TX, USA
Am J Surg 187:343-8. 2004..We performed a structured review of the current literature aiming to (1) characterize CRC in the young population and (2) determine how CRC in this population should be further addressed regarding detection and treatment... - Meta-analysis in surgery: methods and limitationsTina T Ng
Department of Surgery, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
Arch Surg 141:1125-30; discussion 1131. 2006..This review provides an overview of the principles, application, and limitations of meta-analysis in the context of surgery... - Why do breast cancer mortality rates vary across states?Melinda A Maggard
UCLA Department of Surgery, Los Angeles, California, USA
Am Surg 69:59-62. 2003..As such breast cancer mortality rates may be best improved by targeting screening and access-to-care issues rather than treatment... - Development of quality indicators: lessons learned in bariatric surgeryMelinda A Maggard
Department of Surgery, David Geffen School of Medicine at the University of California, Los Angeles 90095, USA
Am Surg 72:870-4. 2006..As quality indicators will likely be developed and used increasingly, future projects in this regard will benefit from these lessons... - A meta-analysis of perioperative beta blockade: what is the actual risk reduction?Marcia L McGory
Department of Surgery, David Geffen School of Medicine, University of California, Los Angeles 90095 6904, USA
Surgery 138:171-9. 2005..The objective is to evaluate the effect of perioperative beta blockade in noncardiac surgery for protection against mortality or cardiac events... - Trends and outcomes of adolescent bariatric surgery in California, 2005-2007Howard C Jen
Department of Surgery, UCLA School of Medicine, and UCLA Fit for Health Weight Program, Mattel Children s Hospital UCLA, Division of Pediatric Surgery, UCLA Medical Center, 10833 Le Conte Ave, CHS Building, MC 709818, Los Angeles, CA 90095, USA
Pediatrics 126:e746-53. 2010..The goal of this study was to evaluate trends, and outcomes of adolescents who undergo bariatric surgery... - The aging population and its impact on the surgery workforceDavid A Etzioni
Department of Surgery, VA Greater Los Angeles Health Care System, Los Angeles, CA 90403, USA
Ann Surg 238:170-7. 2003..To predict the impact of the aging population on the demand for surgical procedures... - Negative appendectomy rate: influence of CT scansMarcia L McGory
David Geffen School of Medicine, University of California, Los Angeles, Department of Surgery, 10833 Le Conte Avenue, 72-215 Center for Health Sciences, Box 956904, Los Angeles, CA 90095-6904, USA
Am Surg 71:803-8. 2005..In conclusion, use of CT was associated with lower rate of negative appendectomy, depending on patient age and sex... - Rare tumors of the colon and rectum: a national reviewHakjung Kang
Department of Surgery, Daehang Hospital, Seoul, South Korea
Int J Colorectal Dis 22:183-9. 2007..This population-based evaluation is the first comprehensive look at four rare histologic types of CRC, allowing comparisons with the more common adenocarcinoma for clinical and pathological features and survival rates... - A 10-year outcomes evaluation of mucinous and signet-ring cell carcinoma of the colon and rectumHakjung Kang
Department of Surgery, Daehang Hospital, Seoul, Korea
Dis Colon Rectum 48:1161-8. 2005..Importantly, it seems that the signet-ring cell subtype has worse outcomes, whereas survival rates for mucinous tumors are similar to adenocarcinomas...