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1.
Ann Surg Oncol ; 31(1): 31-41, 2024 Jan.
Article in English | MEDLINE | ID: mdl-37936022

ABSTRACT

BACKGROUND: Surgical subspecialty training aims to meet the needs of practicing surgeons and their communities. This study investigates career preparedness of Complex General Surgical Oncology (CGSO) fellowship graduates, identifies factors associated with practice readiness, and explores potential opportunities to improve the current training model. METHODS: The Society of Surgical Oncology partnered with the National Cancer Institute to conduct a 36-question survey of CGSO fellowship graduates from 2012 to 2022. RESULTS: The overall survey response rate was 38% (221/582) with a slight male predominance (63%). Forty-six percent of respondents completed their fellowship after 2019. Factors influencing fellowship program selection include breadth of cancer case exposure (82%), mentor influence (66%), and research opportunities (38%). Overall, graduates reported preparedness for practice; however, some reported unpreparedness in research (18%) and in specific clinical areas: thoracic (43%), hyperthermic intraperitoneal chemotherapy (HIPEC) (15%), and hepato-pancreato-biliary (15%) surgery. Regarding technical preparedness, 70% reported being "very prepared". Respondents indicated lack of preparedness in robotic (63%) and laparoscopic (33%) surgery approaches. Suggestions for training improvement included increased autonomy and case volumes, program development, and research infrastructure. Current practice patterns by graduates demonstrated discrepancies between ideal contracts and actual practice breakdowns, particularly related to the practice of general surgery. CONCLUSIONS: This study of CGSO fellowship graduates demonstrates potential gaps between trainee expectations and the realities of surgical oncology practice. Although CGSO fellowship appears to prepare surgeons for careers in surgical oncology, there may be opportunities to refine the training model to better align with the needs of practicing surgical oncologists.


Subject(s)
Internship and Residency , Surgical Oncology , Humans , Male , Female , Fellowships and Scholarships , Surveys and Questionnaires , Education, Medical, Graduate
2.
Ann Surg ; 276(2): 357-362, 2022 08 01.
Article in English | MEDLINE | ID: mdl-33351476

ABSTRACT

OBJECTIVE: To determine if tumor genetics are associated with overall survival (OS) after concurrent resection of colorectal liver metastases (CLM) and extrahepatic disease (EHD). SUMMARY BACKGROUND DATA: The prognosis for patients who undergo concurrent resection of CLM/EHD is unclear and the impact of somatic mutations has not been reported. METHODS: Patients undergoing concurrent resection of CLM and EHD from 2007 to 2017 were identified from 2 academic centers. From 1 center, patients were selected from a pre-existing database of patients undergoing cytore-ductive surgery with hyperthermic intraperitoneal chemotherapy. The Kaplan-Meier method was used to construct survival curves, compared using the log-rank test. Multivariable Cox analysis for OS was performed. RESULTS: One hundred nine patients were included. Most common EHD sites included lung (33 patients), peritoneum (32), and portal lymph nodes (14). TP53 mutation was the most common mutation, identified in 75 patients (69%), and RAS/TP53 co-mutation was identified in 31 patients (28%). The median OS was 49 months (interquartile range, 24-125), and 3- and 5-year OS rates were 66% and 44%, respectively. Compared to patients without RAS/ TP53 co-mutation, patients with RAS/TP53 co-mutation had lower median OS: 39 vs. 51 months ( P = 0.02). On multivariable analysis, lung EHD [hazard ratio (HR), 0.7; 95% confidence intervals (CI), 0.3-1.4], peritoneal EHD (HR, 2.2; 95% CI, 1.1-4.2) and RAS/TP53 co-mutation (HR, 2.8; 95% CI, 1.1-7.2) were independently associated with OS. CONCLUSIONS: RAS/TP53 co-mutation is associated with worse OS after concurrent CLM/EHD resection. Mutational status and site of EHD should be included in the evaluation of patients considered for concurrent resection.


Subject(s)
Colorectal Neoplasms , Liver Neoplasms , ras Proteins/genetics , Colorectal Neoplasms/pathology , Hepatectomy , Humans , Liver Neoplasms/genetics , Liver Neoplasms/secondary , Liver Neoplasms/surgery , Mutation , Prognosis , Survival Rate , Tumor Suppressor Protein p53/genetics
3.
Ann Surg Oncol ; 29(9): 5722-5729, 2022 Sep.
Article in English | MEDLINE | ID: mdl-35597841

ABSTRACT

Breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) is an uncommon peripheral T cell lymphoma arising in response to textured-surface breast implants. Frequently, BIA-ALCL is indolent and typically presents with peri-implant swelling after breast reconstruction or cosmetic augmentation. However, patients can present with an invasive breast or chest wall mass, palpable lymphadenopathy, or metastatic disease. The current literature is limited regarding surgical recommendations for patients with a more aggressive presentation of BIA-ALCL. This report aims to review the various clinical manifestations of BIA-ALCL, including the more advanced and less frequently encountered presentations, with an emphasis on a multidisciplinary approach, with early involvement of a surgical oncologist.


Subject(s)
Breast Implantation , Breast Implants , Breast Neoplasms , Lymphoma, Large-Cell, Anaplastic , Mammaplasty , Neoplasms, Second Primary , Breast Implants/adverse effects , Breast Neoplasms/etiology , Breast Neoplasms/surgery , Female , Humans , Lymphoma, Large-Cell, Anaplastic/etiology , Lymphoma, Large-Cell, Anaplastic/therapy , Neoplasms, Second Primary/surgery
4.
Ann Surg ; 271(4): 724-731, 2020 04.
Article in English | MEDLINE | ID: mdl-30339628

ABSTRACT

OBJECTIVE: The aim of this study was to evaluate trends over time in perioperative outcomes for patients undergoing hepatectomy. BACKGROUND: As perioperative care and surgical technique for hepatectomy have improved, the indications for and complexity of liver resections have evolved. However, the resulting effect on the short-term outcomes over time has not been well described. METHODS: Consecutive patients undergoing hepatectomy during 1998 to 2015 at 1 institution were analyzed. Perioperative outcomes, including the comprehensive complication index (CCI), were compared between patients who underwent hepatectomy in the eras 1998 to 2003, 2004 to 2009, and 2010 to 2015. RESULTS: The study included 3707 hepatic resections. The number of hepatectomies increased in each era (794 in 1998 to 2003, 1402 in 2004 to 2009, and 1511 in 2010 to 2015). Technical complexity increased over time as evidenced by increases in the rates of major hepatectomy (20%, 23%, 30%, P < 0.0001), 2-stage hepatectomy (0%, 3%, 4%, P < 0.001), need for portal vein embolization (5%, 9%, 9%, P = 0.001), preoperative chemotherapy for colorectal liver metastases (70%, 82%, 89%, P < 0.001) and median operative time (180, 175, 225 minutes, P < 0.001). Significant decreases over time were observed in median blood loss (300, 250, 200 mL, P < 0.001), transfusion rate (19%, 15%, 5%, P < 0.001), median length of hospitalization (7, 7, 6 days, P < 0.001), rates of CCI ≥26.2 (20%, 22%, 16%, P < 0.001) and 90-day mortality (3.1%, 2.6%, 1.3%, P < 0.01). On multivariable analysis, hepatectomy in the most recent era 2010 to 2015 was associated with a lower incidence of CCI ≥26.2 (odds ratio 0.7, 95% confidence interval 0.6-0.8, P < 0.0001). CONCLUSION: Despite increases in complexity over an 18-year period, continued improvements in surgical technique and perioperative outcomes yielded a resultant decrease in CCI in the most current era.


Subject(s)
Hepatectomy/methods , Liver Neoplasms/surgery , Outcome Assessment, Health Care , Postoperative Complications/epidemiology , Aged , Female , Humans , Incidence , Male , Middle Aged , Prospective Studies
5.
J Natl Compr Canc Netw ; 18(11): 1500-1508, 2020 11.
Article in English | MEDLINE | ID: mdl-33152698

ABSTRACT

BACKGROUND: The optimal surveillance strategy after resection of colorectal liver metastases (CLM) is unknown. We evaluated changes in recurrence risk after CLM resection and developed a surveillance algorithm. METHODS: Patients undergoing CLM resection during 1998 to 2015 were identified from a prospectively compiled database and analyzed if they had the potential for follow-up longer than the longest observed time to recurrence in this cohort. Changes in recurrence risk and risk factors for recurrence were evaluated. All statistical tests were 2-sided. RESULTS: Among 2,105 patients who were initially identified and underwent CLM resection, the latest recurrence was observed at 87 months; 1,221 consecutive patients from 1998 through 2011 with the potential for at least 87 months of follow-up were included. The risk of recurrence was highest at 0 to 2 years after CLM resection, lower at 2 to 4 years after CLM resection, and steadily lower after 4 years after CLM resection. Factors associated with increased recurrence risk at the time of surgery were primary lymph node metastasis (hazard ratio [HR], 1.54; 95% CI, 1.21-1.97; P<.001), multiple CLM (HR, 1.31; 95% CI, 1.06-1.63; P=.015), largest liver metastasis diameter >5 cm (HR, 1.64; 95% CI, 1.23-2.19; P<.001), and RAS mutation (HR, 1.29; 95% CI, 1.04-1.59; P=.020). In patients without recurrence at 2 years, the only factor still associated with increased recurrence risk was RAS mutation. In those patients, the recurrence rate at 4 years was 59.3% in patients with RAS mutation versus 27.8% in patients with RAS wild-type (P=.019). CONCLUSIONS: For patients who have undergone CLM resection, we propose surveillance every 3 to 4 months during years 0 to 2, every 3 to 4 months (if mutant RAS) versus every 4 to 6 months (if RAS wild-type) during years 2 to 4, and every 6 to 12 months if recurrence-free at 4 years.


Subject(s)
Algorithms , Colorectal Neoplasms , Liver Neoplasms , Colorectal Neoplasms/genetics , Colorectal Neoplasms/surgery , Hepatectomy/adverse effects , Humans , Liver Neoplasms/genetics , Liver Neoplasms/secondary , Liver Neoplasms/surgery , Mutation , Neoplasm Recurrence, Local/epidemiology , Neoplasm Recurrence, Local/genetics , Neoplasm Recurrence, Local/surgery , Prognosis , Retrospective Studies , Survival Rate
6.
J Surg Oncol ; 122(6): 1066-1073, 2020 Nov.
Article in English | MEDLINE | ID: mdl-32632993

ABSTRACT

BACKGROUND: The objective of this study was to assess current perceptions surrounding opioid prescribing in surgical oncology to inform perioperative quality improvement initiatives. METHODS: After the Society of Surgical Oncology (SSO) approval, a survey was distributed to its membership. Five sample procedures were used to assess provider perceptions and prescribing habits. Data were summarized and compared by self-reported demographics. RESULTS: One hundred and seventy-five participants completed the survey: 149 (85%) faculty, 24 (14%) trainees, and 2 (1%) advanced practice providers. Most participants (76%) practiced in academic programs and 21% practiced in non-US locations. Few differences were identified based on clinical role, academic rank, or practice years. Compared with non-US providers, US providers expected higher pain scores at discharge, recommended greater opioid prescriptions, and estimated more days of opioid use for almost every procedure. More non-US providers believed discharge opioids should not be distributed to patients who are opioid-free in their last 24 inpatient hours (80% vs 50%, P = .001). All providers ranked education as "very important" for reducing opioid prescriptions. CONCLUSIONS: Compared with their international counterparts, US surgical oncology providers expected greater opioid needs and recommended higher prescription numbers. Educating providers on multimodal opioid-sparing bundles, accelerated weaning protocols, and standardized discharge prescribing habits could have a positive impact the US opioid epidemic.


Subject(s)
Analgesics, Opioid/therapeutic use , Drug Prescriptions/statistics & numerical data , Habits , Neoplasms/complications , Pain, Postoperative/drug therapy , Practice Patterns, Physicians'/statistics & numerical data , Quality Improvement , Follow-Up Studies , Humans , Neoplasms/pathology , Neoplasms/surgery , Pain Management , Pain, Postoperative/etiology , Pain, Postoperative/pathology , Perception , Prognosis , Surgical Oncology , Surveys and Questionnaires
7.
J Surg Oncol ; 122(3): 547-554, 2020 Sep.
Article in English | MEDLINE | ID: mdl-32447769

ABSTRACT

BACKGROUND AND OBJECTIVES: A department-wide opioid reduction education program resulted in a 1-month change in perceptions of opioid needs and prescribing recommendations for surgical oncology patients. This study's aim was to re-evaluate if early trends were retained 1 year later. METHODS: Surgical Oncology attendings, fellows, and advanced practice providers at a Comprehensive Cancer Center were surveyed 1-year after an August 2018 opioid reduction education program, to compare departmental and individual opioid prescribing habits. RESULTS: The September 2019 response rate was 54/93 (58%), with 41 completing both the post-education and 1-year follow-up surveys. The departmental and matched cohort continued to recommend a lower quantity of discharge opioids for all five index operations (by >50%) and expected less postoperative days to zero opioid needs, when compared to pre-education perceptions. Providers continued to agree that discharge opioid prescriptions should be based on a patient's last 24 hours of inpatient opioid use. There was universal agreement that each respondent's opioid administration had decreased in the past year. CONCLUSIONS: The initial 1-month improvements in perioperative opioid prescribing perceptions were retained 1 year later by Surgical Oncology providers who recommended fewer discharge opioids, faster weaning to zero opioids, and standardized patient-specific discharge opioid volume calculations.


Subject(s)
Analgesics, Opioid/administration & dosage , Practice Patterns, Physicians'/statistics & numerical data , Surgical Oncology/education , Cohort Studies , Harm Reduction , Humans , Inappropriate Prescribing/prevention & control , Pain, Postoperative/drug therapy , Perioperative Care/education , Perioperative Care/methods
8.
Semin Liver Dis ; 39(3): 395-402, 2019 07.
Article in English | MEDLINE | ID: mdl-31100757

ABSTRACT

Up to half of patients with a gastrointestinal stromal tumor (GIST) will present with metastatic disease, most commonly involving the liver. Prior to the introduction of tyrosine kinase inhibitors, treatment options were limited for patients with metastatic GIST to the liver resulting in dismal survival rates. However, with the advent of effective systemic chemotherapy and continued advancements in both surgical and local adjunctive therapy options, significant improvements in survival have been achieved. In this review, the authors characterize the evolution of the treatment approach for metastatic GIST to the liver, including the roles of both surgical resection and adjunctive therapies in today's practice.


Subject(s)
Gastrointestinal Neoplasms/pathology , Gastrointestinal Stromal Tumors/therapy , Hepatectomy , Liver Neoplasms/therapy , Protein Kinase Inhibitors/therapeutic use , Chemoembolization, Therapeutic , Combined Modality Therapy , Gastrointestinal Neoplasms/surgery , Gastrointestinal Stromal Tumors/secondary , Humans , Liver Neoplasms/secondary , Radiofrequency Ablation , Survival Rate , Treatment Outcome
9.
Ann Surg ; 270(6): 937-941, 2019 12.
Article in English | MEDLINE | ID: mdl-30946086

ABSTRACT

OBJECTIVE: To review efficiency metrics and patient safety data before and after implementation of a structured review process for surgical innovations. SUMMARY BACKGROUND DATA: Surgical innovation ranges from minor incremental improvement to radical experimentation. Although innovation paradigms have been described, these are not widely adopted or enforced in the surgical community. METHODS: A Continuous Quality Improvement Team (CQIT) of surgical quality officers and perioperative nurses was organized to perform structured reviews of proposed new surgical devices and procedures at a large quaternary cancer care center. The CQIT process was placed to precede an established Value Analysis Team business evaluation. Pre- and post-CQIT implementation metrics of approval process efficiency and patient safety data were compared. Seven novel procedures were also vetted by the CQIT. RESULTS: Forty-six product requests were evaluated after CQIT implementation. Compared with 34 products evaluated prior to CQIT establishment, the total mean evaluation time decreased from 124 to 51 days (P= 0.007). For new devices requiring intraoperative trial, the time between product proposal and trial decreased from a mean of 260 to 99 days (P= 0.014). The rate of device-related complications in the pre-CQIT group was 10% compared with 0% post-CQIT. Two devices, which administratively bypassed CQIT review, had both minor and major complications, including a mortality. Five novel procedures approved by CQIT with simulation were performed without complications. CONCLUSIONS: Using novel algorithms, the addition of a dedicated team of surgical quality officers to the surgical innovation evaluation process improved both the efficiency and the safety associated with introducing new devices and procedures into practice.


Subject(s)
Diffusion of Innovation , Patient Safety , Quality Improvement , Surgical Equipment , Humans
10.
Ann Surg Oncol ; 26(13): 4548-4555, 2019 Dec.
Article in English | MEDLINE | ID: mdl-31414293

ABSTRACT

BACKGROUND: Symptom burden, as measured by patient-reported outcome (PRO) metrics, may have prognostic value in various cancer populations, but remains underreported. The aim of this project was to determine the predictive impact of preoperative patient-reported symptom burden on readiness to return to intended oncologic therapy (RIOT) after oncologic liver resection. METHODS: Preoperative factors, including anthropometric analysis of sarcopenia, were collected for patients undergoing oncologic liver resection from 2015 to 2018. All patients reported their preoperative symptom burden using the MD Anderson Symptom Inventory, Gastrointestinal version (MDASI-GI). Time to RIOT readiness was compared using standard statistics. RESULTS: Preoperative symptom burden was measured in 107 consecutive patients; 52% had at least one moderate symptom score and 21% reported at least one severe score. Highest rated symptoms were fatigue, disturbed sleep, and distress. For patients reporting a severe preoperative symptom burden, the median time to RIOT readiness was 35 days (interquartile range [IQR] 28-42), compared with 21 days (IQR 21-28) for those without severe symptoms (p < 0.001). On multivariable analysis, severe preoperative symptom burden was independently associated with longer time to RIOT readiness (estimate +7.5 days, 95% confidence interval 2.6-12.3; p = 0.002). CONCLUSIONS: Preoperative symptom burden has a substantial impact on time to RIOT readiness, leading to, on average, a 7-day delay in RIOT readiness compared with patients without severe preoperative symptoms. Identifying and targeting severe preoperative symptoms may hasten recovery and improve time to necessary adjuvant therapies.


Subject(s)
Biliary Tract Neoplasms/surgery , Hepatectomy/methods , Liver Neoplasms/surgery , Preoperative Care , Sarcopenia/diagnosis , Severity of Illness Index , Time-to-Treatment , Biliary Tract Neoplasms/pathology , Fatigue/diagnosis , Fatigue/epidemiology , Female , Follow-Up Studies , Humans , Incidence , Liver Neoplasms/pathology , Male , Middle Aged , Patient Selection , Prognosis , Prospective Studies , Sarcopenia/epidemiology , Survival Rate , Texas/epidemiology
12.
Ann Surg Oncol ; 26(9): 2667-2674, 2019 Sep.
Article in English | MEDLINE | ID: mdl-31168736

ABSTRACT

BACKGROUND: Complex general surgical oncology (CGSO) fellowships recently obtained Accreditation Council for Graduate Medical Education (ACGME) accreditation and board certification eligibility. We aimed to characterize the applicant pool and identify factors predictive of matching into our program. METHODS: We conducted a retrospective review of CGSO fellowship applications to a major cancer center from 2008 to 2018. Data were analyzed for trends over time, including a comparison of pre- versus post-American Board of Surgery (ABS) certification eligibility. RESULTS: A total of 846 applications were reviewed. Most applicants (86.2%) trained in a US residency program; 58.4% performed ≥ 1 research year during residency; 29.6% had a dual degree. Fewer applicants (34.5%) were female, a trend which did not change over time. Post-ABS, applicants were more likely to complete ≥ 1 year between residency and fellowship (20.9% versus 13.2%, p = 0.003), to be in practice at the time of application (12.2% versus 6.6%, p = 0.005), and to reapply (5.5% versus 1.0%, p < 0.001). Post-ABS applicants listed more peer-reviewed publications (8 [interquartile range (IQR) 4, 15] versus 5 [IQR 2, 10]; p < 0.001). On multivariable analysis, factors associated with matching into our program included: US allopathic medical school graduation [odds ratio (OR) 4.6, 95% confidence interval (CI) 1.8-11.7], Alpha Omega Alpha (AOA) Honor Medical Society distinction (OR 2.7, 95% CI 1.6-4.7), dual degree (OR 2.0, 95% CI 1.1-3.4), and performance of a clinical/research rotation at our institution (OR 4.9, 95% CI 2.2-10.7). CONCLUSIONS: After establishment of CGSO board certification eligibility, applicants were more likely to apply while in practice and to reapply. A number of factors, including having a dual degree and rotating at our institution, were associated with matriculation.


Subject(s)
Education, Medical, Graduate/standards , Eligibility Determination/statistics & numerical data , Fellowships and Scholarships/standards , Internship and Residency/statistics & numerical data , Surgeons/education , Surgeons/trends , Surgical Oncology/standards , Adult , Female , Humans , Male , Retrospective Studies , Surgeons/supply & distribution , United States
13.
Ann Surg Oncol ; 26(7): 2011-2018, 2019 Jul.
Article in English | MEDLINE | ID: mdl-30937660

ABSTRACT

BACKGROUND: Patients undergoing oncologic surgery are at risk for persistent postoperative opioid use. As a quality improvement initiative, this study sought to characterize provider perceptions regarding opioid-prescribing after oncologic procedures. METHODS: Surgical oncology attending physicians, clinical fellows, and advanced practice providers (APPs) at a high-volume cancer center were surveyed before and after educational sessions focusing on the opioid epidemic with review of departmental data. RESULTS: The pre-education response rates were 72 (70%) of 103: 22 (65%) of 34 attending physicians, 19 (90%) of 21 fellows, and 31 (65%) of 48 APPs. For five index operations (open abdominal resection, laparoscopic colectomy, wide local excision, thyroidectomy, port), the fellows answered that patients should stop receiving opioids sooner than recommended by the attending surgeons or APPs. For four of five procedures, the APPs recommended higher discharge opioid prescriptions than the attending surgeons or fellows. Almost half of the providers (n = 46, 45%) responded to both the pre- and post-education surveys. After the intervention, the providers recommended lower numbers of opioid pills and indicated that patients should be weaned from opioids sooner for all the procedures. Compared with pre-education, more providers agreed post-education that discharge opioid prescriptions should be based on a patient's last 24 h of inpatient opioid use (83 vs 91%; p = 0.006). The providers who did not attend a session showed no difference in perceptions or recommendations at the repeat assessment. CONCLUSIONS: Variation exists in perioperative opioid-prescribing among provider types, with those most involved in daily care and discharge processes generally recommending more opioids. After education, providers lowered discharge opioid recommendations and thought patients should stop receiving opioids sooner. The next steps include assessing for quantitative changes in opioid-prescribing and implementing standardized opioid prescription algorithms.


Subject(s)
Analgesics, Opioid/therapeutic use , Drug Prescriptions/standards , Pain, Postoperative/drug therapy , Perioperative Care , Practice Guidelines as Topic/standards , Practice Patterns, Physicians'/standards , Surgeons/education , Abdominal Neoplasms/surgery , Habits , Humans , Pain Management , Pain, Postoperative/etiology , Perception , Quality Improvement , Surgical Procedures, Operative/adverse effects , Surveys and Questionnaires , Thyroid Neoplasms/surgery , Thyroidectomy/adverse effects
14.
Ann Surg Oncol ; 26(3): 782-790, 2019 Mar.
Article in English | MEDLINE | ID: mdl-30627879

ABSTRACT

BACKGROUND: Enhanced-recovery (ER) protocols are increasingly being utilized in surgical practice. Outside of colorectal surgery, however, their feasibility, safety, and efficacy in major oncologic surgery have not been proven. This study compared patient outcomes before and after multispecialty implementation of ER protocols at a large, comprehensive cancer center. METHODS: Surgical cases performed from 2011 to 2016 and captured by an institutional NSQIP database were reviewed. Following exclusion of outpatient and emergent surgeries, 2747 cases were included in the analyses. Cases were stratified by presence or absence of ER compliance, defined by preoperative patient education and electronic medical record order set-driven opioid-sparing analgesia, goal-directed fluid therapy, and early postoperative diet advancement and ambulation. RESULTS: Approximately half of patients were treated on ER protocols (46%) and the remaining on traditional postoperative (TP) protocols (54%). Treatment on an ER protocol was associated with decreased overall complication rates (20% vs. 33%, p < 0.0001), severe complication rates (7.4% vs. 10%, p = 0.010), and median hospital length of stay (4 vs. 5 days, p < 0.0001). There was no change in readmission rates (ER vs. TP, 8.6% vs. 9.0%, p = 0.701). Subanalyses of high magnitude cases and specialty-specific outcomes consistently demonstrated improved outcomes with ER protocol adherence, including decreased opioid use. CONCLUSIONS: This assessment of a large-scale ER implementation in multispecialty major oncologic surgery indicates its feasibility, safety, and efficacy. Future efforts should be directed toward defining the long-term oncologic benefits of these protocols.


Subject(s)
Neoplasms/surgery , Postoperative Complications/mortality , Recovery of Function , Surgical Oncology/standards , Surgical Procedures, Operative/standards , Aged , Female , Follow-Up Studies , Humans , Male , Middle Aged , Prognosis , Survival Rate
15.
J Surg Oncol ; 119(5): 594-603, 2019 Apr.
Article in English | MEDLINE | ID: mdl-30825223

ABSTRACT

Colorectal liver metastases (CLM) are not always resectable at the time of diagnosis. An insufficient future liver remnant is a factor excluding patients from curative intent resection. To deal with this issue, two-stage hepatectomy was introduced approximately 20 years ago. It is a sequential treatment strategy for bilateral CLM, which consists of preoperative chemotherapy, portal vein embolization, and planned first and second liver resections. This study reviews current evidence supporting use of two-stage hepatectomy.


Subject(s)
Colorectal Neoplasms/pathology , Embolization, Therapeutic/methods , Hepatectomy/methods , Liver Neoplasms/secondary , Liver Neoplasms/therapy , Antineoplastic Agents/adverse effects , Chemical and Drug Induced Liver Injury/etiology , Humans , Portal Vein
18.
Breast Cancer Res ; 16(2): R26, 2014 Mar 17.
Article in English | MEDLINE | ID: mdl-24636070

ABSTRACT

INTRODUCTION: Our efforts to prevent and treat breast cancer are significantly impeded by a lack of knowledge of the biology and developmental genetics of the normal mammary gland. In order to provide the specimens that will facilitate such an understanding, The Susan G. Komen for the Cure Tissue Bank at the IU Simon Cancer Center (KTB) was established. The KTB is, to our knowledge, the only biorepository in the world prospectively established to collect normal, healthy breast tissue from volunteer donors. As a first initiative toward a molecular understanding of the biology and developmental genetics of the normal mammary gland, the effect of the menstrual cycle and hormonal contraceptives on DNA expression in the normal breast epithelium was examined. METHODS: Using normal breast tissue from 20 premenopausal donors to KTB, the changes in the mRNA of the normal breast epithelium as a function of phase of the menstrual cycle and hormonal contraception were assayed using next-generation whole transcriptome sequencing (RNA-Seq). RESULTS: In total, 255 genes representing 1.4% of all genes were deemed to have statistically significant differential expression between the two phases of the menstrual cycle. The overwhelming majority (221; 87%) of the genes have higher expression during the luteal phase. These data provide important insights into the processes occurring during each phase of the menstrual cycle. There was only a single gene significantly differentially expressed when comparing the epithelium of women using hormonal contraception to those in the luteal phase. CONCLUSIONS: We have taken advantage of a unique research resource, the KTB, to complete the first-ever next-generation transcriptome sequencing of the epithelial compartment of 20 normal human breast specimens. This work has produced a comprehensive catalog of the differences in the expression of protein-coding genes as a function of the phase of the menstrual cycle. These data constitute the beginning of a reference data set of the normal mammary gland, which can be consulted for comparison with data developed from malignant specimens, or to mine the effects of the hormonal flux that occurs during the menstrual cycle.


Subject(s)
Breast/metabolism , Epithelium/metabolism , High-Throughput Nucleotide Sequencing/methods , Premenopause/genetics , Tissue Banks , Transcriptome/genetics , Adult , Algorithms , Female , Follicular Phase/genetics , Gene Regulatory Networks , Humans , Linear Models , Luteal Phase/genetics , Middle Aged , Reverse Transcriptase Polymerase Chain Reaction
19.
Breast Cancer Res Treat ; 143(1): 57-68, 2014 Jan.
Article in English | MEDLINE | ID: mdl-24292813

ABSTRACT

Triple-negative breast cancers (TNBCs) are a heterogeneous set of tumors defined by an absence of actionable therapeutic targets (ER, PR, and HER-2). Microdissected normal ductal epithelium from healthy volunteers represents a novel comparator to reveal insights into TNBC heterogeneity and to inform drug development. Using RNA-sequencing data from our institution and The Cancer Genome Atlas (TCGA) we compared the transcriptomes of 94 TNBCs, 20 microdissected normal breast tissues from healthy volunteers from the Susan G. Komen for the Cure Tissue Bank, and 10 histologically normal tissues adjacent to tumor. Pathway analysis comparing TNBCs to optimized normal controls of microdissected normal epithelium versus classic controls composed of adjacent normal tissue revealed distinct molecular signatures. Differential gene expression of TNBC compared with normal comparators demonstrated important findings for TNBC-specific clinical trials testing targeted agents; lack of over-expression for negative studies and over-expression in studies with drug activity. Next, by comparing each individual TNBC to the set of microdissected normals, we demonstrate that TNBC heterogeneity is attributable to transcriptional chaos, is associated with non-silent DNA mutational load, and explains transcriptional heterogeneity in addition to known molecular subtypes. Finally, chaos analysis identified 146 core genes dysregulated in >90 % of TNBCs revealing an over-expressed central network. In conclusion, use of microdissected normal ductal epithelium from healthy volunteers enables an optimized approach for studying TNBC and uncovers biological heterogeneity mediated by transcriptional chaos.


Subject(s)
Triple Negative Breast Neoplasms/genetics , Triple Negative Breast Neoplasms/pathology , Case-Control Studies , Cluster Analysis , Female , Forkhead Box Protein M1 , Forkhead Transcription Factors/metabolism , Gene Expression Profiling , Gene Expression Regulation, Neoplastic , Gene Regulatory Networks , Humans , Mammary Glands, Human/metabolism , Microdissection , Mutation , Sequence Analysis, RNA , Transcription, Genetic , Triple Negative Breast Neoplasms/drug therapy
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