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AHRQ Research Studies
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Research Studies is a compilation of published research articles funded by AHRQ or authored by AHRQ researchers.
Results
1 to 18 of 18 Research Studies DisplayedGupta AR, Brajcich BC, Yang AD
Necessity of posttreatment surveillance for low-grade appendiceal mucinous neoplasms.
This study’s objectives were to characterize posttreatment surveillance and determine the risk of recurrence following surgical resection of low-grade appendiceal mucinous neoplasms (LAMNs). Patients who underwent surgical rection of localized LAMNs in an 11-hospital regional healthcare system from 2000 to 2019 were included. A total of 114 patients with LAMNs were identified with various tumor grades, most of them pTis (80.7%). Patients were followed up with posttreatment surveillance (n = 39). No patients experienced tumor recurrence after a mean follow-up duration of 4.7 years, suggesting that routine surveillance may be unnecessary.
AHRQ-funded; HS026385.
Citation: Gupta AR, Brajcich BC, Yang AD .
Necessity of posttreatment surveillance for low-grade appendiceal mucinous neoplasms.
J Surg Oncol 2021 Dec;124(7):1115-20. doi: 10.1002/jso.26621..
Keywords: Cancer, Surgery, Care Management
Shipe ME, Baechle JJ, Deppen SA
Modeling the impact of delaying surgery for early esophageal cancer in the era of COVID-19.
Surgical society guidelines have recommended changing the treatment strategy for early esophageal cancer during the novel coronavirus (COVID-19) pandemic. Delaying resection can allow for interim disease progression, but the impact of this delay on mortality is unknown. The COVID-19 infection rate at which immediate operative risk exceeds benefit is unknown. In this study, the investigators sought to model immediate versus delayed surgical resection in a T1b esophageal adenocarcinoma.
AHRQ-funded; HS026122.
Citation: Shipe ME, Baechle JJ, Deppen SA .
Modeling the impact of delaying surgery for early esophageal cancer in the era of COVID-19.
Surg Endosc 2021 Nov;35(11):6081-88. doi: 10.1007/s00464-020-08101-6..
Keywords: COVID-19, Cancer, Surgery, Shared Decision Making, Risk
Kuijer A, Dominici LS, Rosenberg SM
Arm morbidity after local therapy for young breast cancer patients.
This study assessed patient-reported arm morbidity in the Young Women's Breast Cancer Study (YWS). Participants were over 1300 women with breast cancer diagnosed at age 40 or younger and who were enrolled in the YWS. Findings showed that high rates of self-reported arm morbidity in young breast cancer survivors were reported, particularly in patients receiving axillary lymph node dissection and post-mastectomy radiation therapy. Recommendations included attention to the risks and benefits of differing local therapy strategies for axillary lymph node dissection and post-mastectomy radiation therapy patients.
AHRQ-funded; HS023680.
Citation: Kuijer A, Dominici LS, Rosenberg SM .
Arm morbidity after local therapy for young breast cancer patients.
Ann Surg Oncol 2021 Oct;28(11):6071-82. doi: 10.1245/s10434-021-09947-3..
Keywords: Cancer: Breast Cancer, Cancer, Women, Surgery
Dominici L, Hu J, Zheng Y
Association of local therapy with quality-of-life outcomes in young women with breast cancer.
Researchers examined the association of surgery with longer-term satisfaction and quality of life (QOL) in young breast cancer survivors. Participants were women 40 years or older who enrolled in the Young Women's Breast Cancer Study. The results suggested that local therapy in young breast cancer survivors is persistently associated with poorer scores in multiple QOL domains, particularly among those treated with mastectomy and radiotherapy, irrespective of breast reconstruction. Socioeconomic stressors also appear to play a role.
AHRQ-funded; HS023680.
Citation: Dominici L, Hu J, Zheng Y .
Association of local therapy with quality-of-life outcomes in young women with breast cancer.
JAMA Surg 2021 Oct;156(10):e213758. 2021. doi: 10.1001/jamasurg.2021.3758..
Keywords: Cancer: Breast Cancer, Cancer, Quality of Life, Women, Surgery
Garsa A, Jang JK, Baxi S
Radiation therapy for brain metastases: a systematic review.
This systematic review synthesizes the available evidence on radiation therapy for brain metastases. A literature search was conducted using the major medical databases and included randomized controlled trials and large observational studies which evaluated whole brain radiation therapy (WBRT) and stereotactic radiosurgery (SRS) alone or in combination as initial or postoperative treatment, with or without systemic therapy for adults with brain metastases due to lung cancer, breast cancer, or melanoma. No statistically significant difference in overall survival was found with a combination of SRS plus WBRT compared with SRS alone or WBRT alone. Radiation therapy after surgery did not improve overall survival compared with surgery alone. WBRT plus systemic therapy was associated with increased risks for vomiting compared with WBRT alone. There was not enough data on patient-relevant outcomes such as quality of life, functional status, and cognitive effects.
AHRQ-funded; 290201500010I.
Citation: Garsa A, Jang JK, Baxi S .
Radiation therapy for brain metastases: a systematic review.
Pract Radiat Oncol 2021 Sep-Oct;11(5):354-65. doi: 10.1016/j.prro.2021.04.002..
Keywords: Cancer, Surgery, Treatments, Patient-Centered Outcomes Research, Evidence-Based Practice
Rosko AJ, Gay BL, Reyes-Gastelum D
Surgeons' attitudes on total thyroidectomy vs lobectomy for management of papillary thyroid microcarcinoma.
The incidence of papillary thyroid cancer has increased in the past 25 years without a clear increase in thyroid cancer deaths. Given these findings, there has been a shift toward recommending conservative surgical options, with current management guidelines favoring lobectomy, especially for patients with papillary thyroid microcarcinoma. The aim of this study was to identify surgeons’ attitudes regarding surgical management of microcarcinomas with the hypothesis that surgeons consider other factors, in addition to tumor size, when selecting a surgical procedure.
AHRQ-funded; HS024512.
Citation: Rosko AJ, Gay BL, Reyes-Gastelum D .
Surgeons' attitudes on total thyroidectomy vs lobectomy for management of papillary thyroid microcarcinoma.
JAMA Otolaryngol Head Neck Surg 2021 Jul;147(7):667-69. doi: 10.1001/jamaoto.2021.0525..
Keywords: Cancer, Surgery, Practice Patterns, Provider: Physician
Herb JN, Ollila DW, Stitzenberg KB
Use and costs of sentinel lymph node biopsy in non-ulcerated T1b melanoma: analysis of a population-based registry.
This study looked at the utility of sentinel lymph node biopsy (SLNB) for non-ulcerated T1b melanoma. The aim of the study was to estimate SLNB use, positivity, prevalence, and procedural costs in patients with non-ulcerated T1b melanoma using a population-based registry. Patients with clinically node-negative, non-ulcerated T1b melanoma were identified in the SEER database from 2010 to 2016. Among 7245 included patients, 53% underwent SLNB of which 156 (4.1%) had a positive SLNB. Higher odds of positivity were associated with younger age, >1 mitosis per mm2, female sex, and truncal tumor location. Estimated SLNB costs to identify one patient with Stage II disease was $71,700. Out-of-pocket expenses for a Medicare patient was estimated to be $652 for a wide local excision (WLE) and SLNB and $79 for WLE alone.
AHRQ-funded; HS000032.
Citation: Herb JN, Ollila DW, Stitzenberg KB .
Use and costs of sentinel lymph node biopsy in non-ulcerated T1b melanoma: analysis of a population-based registry.
Ann Surg Oncol 2021 Jul;28(7):3470-78. doi: 10.1245/s10434-021-09998-6..
Keywords: Cancer: Skin Cancer, Cancer, Surgery, Healthcare Costs, Skin Conditions
Brauer DG, Wu N, Keller MR
Care fragmentation and mortality in readmission after surgery for hepatopancreatobiliary and gastric cancer: a patient-level and hospital-level analysis of the Healthcare Cost and Utilization Project administrative database.
This study investigates patient-level and hospital-level variables associated with the mortality difference at referral centers and, postoperatively, outside hospitals, in patients undergoing hepatopancreatobiliary (HPB) and gastric oncologic surgeries. Using HCUP data, findings showed that, for readmissions following HPB and gastric oncologic surgery, travel distance and timing were major determinants of care fragmentation. However, these variables were not associated with mortality, nor was annual hospital surgical volume after risk-adjustment.
AHRQ-funded; HS019455.
Citation: Brauer DG, Wu N, Keller MR .
Care fragmentation and mortality in readmission after surgery for hepatopancreatobiliary and gastric cancer: a patient-level and hospital-level analysis of the Healthcare Cost and Utilization Project administrative database.
J Am Coll Surg 2021 Jun;232(6):921-32. doi: 10.1016/j.jamcollsurg.2021.03.017..
Keywords: Healthcare Cost and Utilization Project (HCUP), Cancer, Surgery, Hospital Readmissions, Mortality
Medbery RL, Fernandez FG, Kosinski AS
Costs associated with lobectomy for lung cancer: an analysis merging STS and Medicare data.
Researchers sought to identify underlying case mix factors that contribute to variability of 90-day costs of lobectomy for early-stage lung cancer. Using the Society of Thoracic Surgeons General Thoracic Surgery Database, they found that lobectomy is associated with substantial variability of episode-of-care costs. Variability is driven by patient demographic and clinical factors, hospital characteristics, and the occurrence and severity of complications.
AHRQ-funded; R01 HS022279.
Citation: Medbery RL, Fernandez FG, Kosinski AS .
Costs associated with lobectomy for lung cancer: an analysis merging STS and Medicare data.
Ann Thorac Surg 2021 Jun;111(6):1781-90. doi: 10.1016/j.athoracsur.2020.08.073..
Keywords: Cancer: Lung Cancer, Cancer, Healthcare Costs, Surgery, Elderly, Medicare
Cowper PA, Feng L, Kosinski AS
Initial and longitudinal cost of surgical resection for lung cancer.
This study looked at the 4-year longitudinal cost of surgical resection of non-small cell lung cancer (NSCLC). The study describes initial and 4-year resource use and cost for NSCLC patients aged 65 years of age or older who were treated surgically from 2008 to 2013. Clinical data for NSCLC resections from The Society of Thoracic Surgery Database linked to Medicare claims, resource use and cost of preoperative staging, surgery, and subsequent care through 4 years were examined. Outcomes were stratified by pathologic stage and surgical approach for stage I lobectomy patients. In the first 90 days costs ranged from $12,430 for stage I to $26,350 for stage IV. Cumulative costs ranged from $131,032 for stage I to $205,368 for stage IV. For the stage I lobectomy cohort, patients who had minimally invasive procedures had lower 4-year costs than thoracotomy patients ($120,346 versus $136,250).
AHRQ-funded; R01 HS022279.
Citation: Cowper PA, Feng L, Kosinski AS .
Initial and longitudinal cost of surgical resection for lung cancer.
Ann Thorac Surg 2021 Jun;111(6):1827-33. doi: 10.1016/j.athoracsur.2020.07.048..
Keywords: Cancer: Lung Cancer, Cancer, Surgery, Healthcare Costs
Baskin AS, Wang T, Bredbeck BC
Trends in contralateral prophylactic mastectomy utilization for small unilateral breast cancer.
This study describes trends in contralateral prophylactic mastectomy (CPM) utilization for small unilateral breast cancer instead of breast-conserving surgery (BCS) which is recommended. The authors used the National Cancer Database to identify women with unilateral, T1 breast cancer. Of the total cohort of 765,487, 69% underwent BCS and 31% chose mastectomy. Of 176,673 women aged 70 years or older, 75% underwent BCS and 25% chose mastectomy. CPM rates have increased in both cohorts since 2006. Patient factors such as younger age, white rate, private insurance, tumor factors, and facility factors were associated with increased CPM rates compared with unilateral mastectomy.
Citation: Baskin AS, Wang T, Bredbeck BC .
Trends in contralateral prophylactic mastectomy utilization for small unilateral breast cancer.
J Surg Res 2021 Jun;262:71-84. doi: 10.1016/j.jss.2020.12.057..
Keywords: Cancer: Breast Cancer, Cancer, Women, Surgery, Prevention, Healthcare Utilization
Brajcic BC, Ko CY, Liu JB
A NSQIP-based randomized clinical trial evaluating choice of prophylactic antibiotics for pancreaticoduodenectomy.
This paper describes the protocol for an upcoming multicenter randomized surgical trial to evaluate choice of prophylactic antibiotics for pancreaticoduodenectomy. The rationale and methodology of the trial evaluating piperacillin-tazobactam compared to cefoxitin for surgical site infection prevention is described. The study will utilize a clinical registry for data collection.
AHRQ-funded; HS000078.
Citation: Brajcic BC, Ko CY, Liu JB .
A NSQIP-based randomized clinical trial evaluating choice of prophylactic antibiotics for pancreaticoduodenectomy.
J Surg Oncol 2021 May;123(6):1387-94. doi: 10.1002/jso.26402..
Keywords: Cancer, Antibiotics, Medication, Prevention, Surgery, Healthcare-Associated Infections (HAIs), Comparative Effectiveness, Evidence-Based Practice
Chan H, Zhang L, Choti MA
Recurrence patterns after surgical resection of gastroenteropancreatic neuroendocrine tumors: analysis from the national comprehensive cancer network oncology outcomes database.
Current National Comprehensive Cancer Network guidelines for gastroenteropancreatic neuroendocrine tumors (GEPNETs) recommend complete (R0) surgical resection of the primary tumor and metastases, if feasible. This study conducted large multicenter studies of recurrence patterns of GEPNETs after resection. Findings showed that R0 resection was associated with variable risk of recurrence across subtypes. Recommendations included further research to inform refinement of guidelines for the appropriate duration of surveillance after R0 resection.
AHRQ-funded; HS021700.
Citation: Chan H, Zhang L, Choti MA .
Recurrence patterns after surgical resection of gastroenteropancreatic neuroendocrine tumors: analysis from the national comprehensive cancer network oncology outcomes database.
Pancreas 2021 Apr;50(4):506-12. doi: 10.1097/mpa.0000000000001791..
Keywords: Cancer, Surgery, Patient-Centered Outcomes Research, Evidence-Based Practice, Outcomes
Wang T, Bredbeck BC, Sinco B
Variations in persistent use of low-value breast cancer surgery.
Through the Choosing Wisely campaign, surgical specialties identified 4 low-value breast cancer operations. Preliminary data suggest varying rates of deimplementation and have identified patient-level and clinician-level determinants of continued overuse. However, little information exists about facility-level variation or determinants of differential deimplementation. In this retrospective cohort study the investigators sought to identify variation and determinants of persistent use of low-value breast cancer surgical care.
AHRQ-funded; HS026030.
Citation: Wang T, Bredbeck BC, Sinco B .
Variations in persistent use of low-value breast cancer surgery.
JAMA Surg 2021 Apr;156(4):353-62. doi: 10.1001/jamasurg.2020.6942..
Keywords: Cancer: Breast Cancer, Cancer, Surgery, Women
Diaz A, Chhabra KR, Dimick JB
Variations in surgical spending within hospital systems for complex cancer surgery.
Researchers sought to measure variations in episode spending within and across hospital systems among Medicare beneficiaries undergoing complex cancer surgery. They found wide variations in surgical episode spending both within and across hospital systems. They recommended that system leaders seek better understanding of variations in practices among their hospitals to standardize care and reduce variations in outcomes, use, and costs.
AHRQ-funded; HS024763.
Citation: Diaz A, Chhabra KR, Dimick JB .
Variations in surgical spending within hospital systems for complex cancer surgery.
Cancer 2021 Feb 15;127(4):586-97. doi: 10.1002/cncr.33299..
Keywords: Surgery, Cancer, Healthcare Costs, Health Systems, Hospitals
Vu JV, Sheetz KH, De Roo AC
Variation in colectomy rates for benign polyp and colorectal cancer.
Removal of pre-cancerous polyps on screening colonoscopy is a mainstay of colorectal cancer (CRC) prevention. Complex polyps may require surgical removal with colectomy, an operation with a 17% morbidity and 1.5% mortality rate. Recently, advanced endoscopic techniques have allowed some patients with complex polyps to avoid the morbidity of colectomy. In this study, the investigators compared regional variation in colectomy rates for CRC versus benign polyp.
AHRQ-funded; HS000053.
Citation: Vu JV, Sheetz KH, De Roo AC .
Variation in colectomy rates for benign polyp and colorectal cancer.
Surg Endosc 2021 Feb;35(2):802-08. doi: 10.1007/s00464-020-07451-5..
Keywords: Cancer: Colorectal Cancer, Cancer, Surgery, Colonoscopy
Osterman CK, Deal AM, McCloskey H
Impairment and longitudinal recovery of older adults treated with radical cystectomy for muscle invasive bladder cancer.
Treatment for muscle invasive bladder cancer includes radical cystectomy, a major surgery that can be associated with significant toxicity. Limited data exist related to changes in patient global health status and recovery following radical cystectomy. In this study, the investigators used geriatric assessment to longitudinally compare health related impairments in older and younger patients with muscle invasive bladder cancer who undergo radical cystectomy.
AHRQ-funded; HS024134.
Citation: Osterman CK, Deal AM, McCloskey H .
Impairment and longitudinal recovery of older adults treated with radical cystectomy for muscle invasive bladder cancer.
J Urol 2021 Jan;205(1):94-99. doi: 10.1097/ju.0000000000001323..
Keywords: Elderly, Cancer, Surgery, Adverse Events, Quality of Life
Eyrich NW, Sloss KR, Howard RA
Opioid prescribing exceeds consumption following common surgical oncology procedures.
Researchers aimed to compare opioid prescribing to opioid consumption for common surgical oncology procedures. They found that the median quantity of opioid prescribed was significantly larger than consumed following breast biopsy, lumpectomy, and mastectomy or wide local excision. The majority of patients reported receiving education on taking opioids, but only 27% received instructions on proper disposal; 82% of prescriptions filled resulted in unused opioids, and only 11% of these patients safely disposed of them. They concluded that their study demonstrated that opioid prescribing exceeds consumption following common surgical oncology procedures, thus indicating the potential for reductions in prescribing.
AHRQ-funded; HS023313.
Citation: Eyrich NW, Sloss KR, Howard RA .
Opioid prescribing exceeds consumption following common surgical oncology procedures.
J Surg Oncol 2021 Jan;123(1):352-56. doi: 10.1002/jso.26272..
Keywords: Opioids, Medication, Surgery, Cancer: Breast Cancer, Cancer, Practice Patterns, Pain