Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 47
Filter
1.
Ann Diagn Pathol ; 48: 151606, 2020 Oct.
Article in English | MEDLINE | ID: mdl-32889392

ABSTRACT

Low grade appendiceal mucinous neoplasm (LAMN) is the primary source of pseudomyxoma peritonei (PMP). PMP may develop after seemingly complete resection of primary tumor by appendectomy, which is unpredictable due to lack of reliable prognostic indicators. We retrospectively reviewed 154 surgically resected LAMNs to explore if any of the macroscopic and microscopic characteristics may be associated with increasing risk of PMP development. Our major findings include: (1) As compared to those without PMP, the cases that developed PMP were more frequent to have (a) smaller luminal diameter (<1 cm) and thicker wall, separate mucin aggregations, and microscopic perforation/rupture, all suggestive of luminal mucin leakage; (b) microscopic acellular mucin presenting on serosal surface and not being confined to mucosa; and (c) neoplastic epithelium dissecting outward beyond mucosa, however, with similar frequency of neoplastic cells being present in muscularis propria. (2) Involvement of neoplastic cells or/and acellular mucin at surgical margin did not necessarily lead to tumor recurrence or subsequent PMP, and clear margin did not absolutely prevent PMP development. (3) Coexisting diverticulum, resulted from neoplastic or non-neoplastic mucosa being herniated through muscle-lacking vascular hiatus of appendiceal wall, was seen in a quarter of LAMN cases, regardless of PMP. The diverticular portion of tumor involvement was often the weakest point where rupture occurred. In conclusion, proper evaluation of surgical specimens with search for mucin and neoplastic cells on serosa and for microscopic perforation, which are of prognostic significance, should be emphasized.


Subject(s)
Adenocarcinoma, Mucinous/pathology , Adenocarcinoma, Mucinous/surgery , Appendectomy/methods , Appendiceal Neoplasms/pathology , Pseudomyxoma Peritonei/pathology , Adenocarcinoma, Mucinous/complications , Adenocarcinoma, Mucinous/ultrastructure , Adolescent , Adult , Aged , Aged, 80 and over , Case-Control Studies , Diverticulum/etiology , Diverticulum/pathology , Female , Humans , Male , Middle Aged , Mucins/ultrastructure , Neoplasm Grading/methods , Neoplasm Recurrence, Local/prevention & control , Pathology, Surgical/methods , Prognosis , Pseudomyxoma Peritonei/diagnosis , Pseudomyxoma Peritonei/etiology , Retrospective Studies , Risk Management , Serous Membrane/pathology , Serous Membrane/ultrastructure , Young Adult
2.
J Surg Oncol ; 117(4): 545-550, 2018 Mar.
Article in English | MEDLINE | ID: mdl-29127696

ABSTRACT

Giving hope to patients is our responsibility. It is the essence of a meaningful practice in medicine. Science now allows us to understand this complex and multidimensional human dynamic, and translate it into clinical practice. Quantitative research has shown hope is strong even in terminal illness. Through qualitative methodology hope fostering strategies and hope hindering behaviors have been identified. This exciting new knowledge facilitates the challenging task of disclosure of bad news while enabling hope.


Subject(s)
Hope , Neoplasms/prevention & control , Oncologists/psychology , Physician-Patient Relations , Translational Research, Biomedical/methods , Humans , Neoplasms/therapy
3.
J Clin Pathol ; 70(1): 40-50, 2017 Jan.
Article in English | MEDLINE | ID: mdl-27371613

ABSTRACT

BACKGROUND: Tumours of appendix, including classic carcinoid tumour (CCT), goblet cell carcinoid (GCC), low-grade appendiceal mucinous neoplasm, high-grade appendiceal mucinous neoplasm/mucinous carcinoma (MCA) and non-mucinous adenocarcinoma (NMA), show different and sometimes mixed morphological features. It was hypothesised that these tumours originate from common tumour stem cell(s) with potential of various cell lineage differentiation. In normal intestinal epithelium, absorptive lineage (enterocytes) differentiation is driven by Notch-Hes1 pathway, while secretory lineage is driven by Wnt-Math1 pathway and further separated by different downstream signallings into three sublineages (Gfi1-Klf4/Elf3 for goblet cells, Gfi1-Sox9 for Paneth cells and Ngn3-Pdx1/Beta2/Pax4 for enteroendocrine cells). METHODS: The expressions of various signalling proteins in different appendiceal tumours were detected by immunohistochemistry on tumour tissue microarray. RESULTS: CCT showed reduced Hes1/Elf3 and Sox9/Klf4 coupled with elevated Math1, in keeping with endocrine phenotype. As compared with CCT, GCC showed higher Klf4 and similar Ngn3/Pax4, indicative of a shift of differentiation towards goblet cells as well as endocrine cells. GCC displayed a Notch signalling similar to adenocarcinoma. Mucinous tumours showed lower Elf3 than normal appendiceal epithelium and higher Math1/Gfi1/Klf4, suggestive of a differentiation towards less enterocytes but more goblet cells. NMA showed Notch signalling similar to other glandular tumours, but lower Klf4. However, some seemingly paradoxical changes were also observed, probably suggesting gene mutations and/or our incomplete understanding of the intestinal cell differentiation. CONCLUSIONS: Wnt/secretory lineage protein and Notch/absorptive lineage protein expression profiles are generally associated with the tumour cell differentiation and morphological diversity of common appendiceal tumours.


Subject(s)
Adenocarcinoma, Mucinous/metabolism , Appendiceal Neoplasms/metabolism , Carcinoid Tumor/metabolism , Enterocytes/metabolism , Intestinal Mucosa/metabolism , Receptors, Notch/metabolism , Wnt Signaling Pathway/physiology , Adenocarcinoma, Mucinous/genetics , Adenocarcinoma, Mucinous/pathology , Appendiceal Neoplasms/genetics , Appendiceal Neoplasms/pathology , Carcinoid Tumor/genetics , Carcinoid Tumor/pathology , Cell Differentiation/physiology , Cell Lineage , Enterocytes/pathology , Humans , Intestinal Mucosa/pathology , Kruppel-Like Factor 4 , Receptors, Notch/genetics
4.
J Surg Oncol ; 113(1): 108-13, 2016 Jan.
Article in English | MEDLINE | ID: mdl-26661586

ABSTRACT

BACKGROUND AND OBJECTIVES: Currently, standard treatment of soft tissue sarcoma (STS) is wide local excision and adjuvant radiation, but radiation may be unnecessary in superficial STS. The primary objective is to assess local recurrence rates in patients treated with surgical management alone for superficial STS. METHODS: A retrospective cancer registry review of patients treated with surgery alone for superficial STS at the Tom Baker Cancer Center (TBCC) was performed. Patient and tumor characteristics as well as recurrence data were collected. RESULTS: Sixty-one patients met study criteria. Local and overall recurrence rates were 7/61 (11.5%) and 12/61 (19.7%), respectively. The proportion with a T2 tumor was 38.8% versus 33.3% (P = 0.69), with Grade 2 or 3 tumors was 59.2% versus 83.3% (P = 0.14), and with resection margins <1 cm was 28.6% versus 75.0% (P = 0.008) for patients without and with recurrence, respectively. Median time to recurrence was 1.7 (0.4-5.2) years. CONCLUSIONS: Surgical resection alone appears to be a viable option for superficial STS that can save patients from potential side effects of radiation. The association between recurrence and inadequate margins (<1 cm) requires additional treatment be offered to this subset of patients.


Subject(s)
Sarcoma/pathology , Sarcoma/surgery , Adult , Aged , Alberta/epidemiology , Disease-Free Survival , Female , Humans , Kaplan-Meier Estimate , Male , Medical Records , Middle Aged , Neoplasm Grading , Neoplasm Recurrence, Local/epidemiology , Patient Selection , Registries , Retrospective Studies , Sarcoma/epidemiology , Sarcoma/mortality , Treatment Outcome
5.
Am J Surg ; 210(3): 424-30, 2015 Sep.
Article in English | MEDLINE | ID: mdl-26051744

ABSTRACT

BACKGROUND: Cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) have improved survival for colorectal and high-grade appendiceal carcinomatosis. We compared the overall and recurrence-free survival (OS and RFS) of patients treated with HIPEC with mitomycin c and early postoperative intraperitoneal chemotherapy (EPIC) with fluorouracil versus HIPEC alone using oxaliplatin and simultaneous IV infusion of fluorouracil. METHODS: Ninety-three patients with colorectal or high-grade appendiceal carcinomatosis were treated with CRS and HIPEC + EPIC or HIPEC alone. OS and RFS were analyzed using Kaplan-Meier curves and log-rank testing. RESULTS: Survival did not differ between HIPEC regimens. The 3-year OS and RFS rates were 50% and 21% for HIPEC + EPIC and 46% and 6% for HIPEC alone (P = .72 and P = .89, respectively). HIPEC + EPIC patients experienced more grade III/IV complications (43.2% vs 19.6%, P = .01). CONCLUSIONS: There was no difference in OS and RFS between colorectal and high-grade appendiceal adenocarcinoma patients treated with CRS and HIPEC + EPIC versus HIPEC alone. However, HIPEC + EPIC patients suffered greater morbidity, making HIPEC alone the preferable regimen.


Subject(s)
Chemotherapy, Cancer, Regional Perfusion , Colorectal Neoplasms/mortality , Colorectal Neoplasms/therapy , Cytoreduction Surgical Procedures , Hyperthermia, Induced , Peritoneal Neoplasms/mortality , Peritoneal Neoplasms/therapy , Adenocarcinoma/mortality , Adenocarcinoma/therapy , Adenocarcinoma, Mucinous/mortality , Adenocarcinoma, Mucinous/therapy , Adult , Aged , Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Appendiceal Neoplasms/mortality , Appendiceal Neoplasms/therapy , Chemotherapy, Adjuvant , Female , Fluorouracil/administration & dosage , Humans , Male , Middle Aged , Neoplasm Recurrence, Local , Organoplatinum Compounds/administration & dosage , Oxaliplatin
6.
Ann Surg Oncol ; 22(9): 2869-75, 2015 Sep.
Article in English | MEDLINE | ID: mdl-25783679

ABSTRACT

BACKGROUND: Preoperative irradiation reduces local recurrence of soft tissue sarcomas (STSs), but major wound complication rates approach 25-35 %. Using a novel neoadjuvant chemoradiation protocol, we prospectively documented functional outcomes and quality of life (QOL) and hypothesized a lower major wound complication rate. METHODS: Patients with STS deep to muscular fascia were treated with 3 days of doxorubicin (30 mg/day) and 10 days of irradiation (300 cGy/day) followed by limb-sparing surgery. Wound complications were assessed, and functional assessment and QOL were followed prospectively using the Toronto Extremity Salvage Score (TESS), Musculoskeletal Tumor Society (MSTS), and Short Form (SF)-36 questionnaires preoperatively and 6 and 12 months postoperatively. RESULTS: Altogether, 52 consecutive patients were accrued during 2006-2011. Overall, 80.8 % of STSs were >5 cm, and 67.3 % involved the lower extremity. Seven (13.5 %) major wound complications occurred, all requiring reoperation. Preoperative scores for TESS, MSTS, and SF-36 physical (PCS) and mental (MCS) health components were 83.3, 86.7, 40.6, and 49.4, respectively. There were no differences seen 6 months postoperatively. By 12 months, however, patients showed improved functional scores (TESS 93.0, p = 0.02; MSTS 93.3, p < 0.01) and QOL scores (PCS 45.1, p = 0.02; MCS = 52.9, p = 0.05). No differences in scores were seen between patients with or without wound complications. CONCLUSIONS: Patients treated with our neoadjuvant chemoradiation protocol had stable QOL and functional scores 6 months postoperatively and showed improvement by 12 months. Importantly, the major wound complication rate was low.


Subject(s)
Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Chemoradiotherapy , Neoadjuvant Therapy , Quality of Life , Sarcoma/complications , Wounds and Injuries/etiology , Adult , Aged , Aged, 80 and over , Female , Follow-Up Studies , Humans , Limb Salvage , Male , Middle Aged , Neoplasm Grading , Neoplasm Staging , Preoperative Care , Prognosis , Prospective Studies , Young Adult
7.
Am J Surg ; 207(5): 760-4; discussion 764-5, 2014 May.
Article in English | MEDLINE | ID: mdl-24791641

ABSTRACT

BACKGROUND: Obtaining a complete cytoreduction in patients with peritoneal carcinomatosis (PC) is one of the most significant prognostic variables for long-term survival. This study explored features on preoperative computed tomography (CT) to predict unresectability. METHODS: A retrospective case-control study was conducted of 15 patients with unresectable PC and 15 patients with completely resected PC matched by intraoperative peritoneal cancer index (PCI) and pathology type. Two surgical oncologists blindly analyzed all abdominopelvic CT scans. RESULTS: PCI estimated on imaging was not higher in unresectable patients (P = .851) and significantly underestimated intraoperative PCI measurement (P = .003). No single concerning feature was associated with unresectability. However, patients with 2 or more concerning features were more likely to be unresectable (87.5% vs 36.4%, P = .035). CONCLUSIONS: Two or more concerning CT imaging features appear to be associated with a higher risk of unresectability in patients with PC. However, no specific imaging feature should exclude a patient from an attempted cytoreduction.


Subject(s)
Carcinoma/diagnostic imaging , Carcinoma/secondary , Patient Selection , Peritoneal Neoplasms/diagnostic imaging , Peritoneal Neoplasms/secondary , Preoperative Care/methods , Tomography, X-Ray Computed , Appendiceal Neoplasms/pathology , Carcinoma/surgery , Case-Control Studies , Colorectal Neoplasms/pathology , Decision Support Techniques , Female , Humans , Male , Matched-Pair Analysis , Mesothelioma/pathology , Middle Aged , Peritoneal Neoplasms/surgery , Retrospective Studies , Severity of Illness Index
8.
Am J Surg ; 207(5): 693-6; discussion 696-7, 2014 May.
Article in English | MEDLINE | ID: mdl-24576583

ABSTRACT

BACKGROUND: A Web-based synoptic operative reporting system (WebSMR) incorporates implicit guidelines and real-time feedback of a surgeon's practice compared with provincial data. This study compares rates of total mastectomy (TM) between the overall provincial and WebSMR patients and examines decision-making factors in WebSMR patients. METHODS: Patients treated for invasive breast cancer (2007 to 2011) were identified from WebSMR and the Alberta Cancer Registry. Reports include surgery type and reasons for TM. RESULTS: Among 5,787 patients in WebSMR (2007 to 2011), TM rate decreased from 48% to 42% (P < .001). In 2011, the provincial cancer registry recorded a 56% TM rate compared to 42% in WebSMR patients. Patient preference accounted for 36% in the latter group. CONCLUSIONS: In WebSMR patients, TM rates were lower than the overall provincial rate and decreased significantly during the study period. Reasons are unclear, but guidelines and real-time feedback likely plays a role.


Subject(s)
Breast Neoplasms/surgery , Carcinoma, Ductal, Breast/surgery , Guideline Adherence/statistics & numerical data , Internet , Mastectomy, Simple/statistics & numerical data , Medical Records Systems, Computerized , Practice Patterns, Physicians'/statistics & numerical data , Alberta , Decision Support Techniques , Female , Guideline Adherence/trends , Humans , Mastectomy, Segmental/statistics & numerical data , Mastectomy, Segmental/trends , Mastectomy, Simple/trends , Patient Preference , Practice Guidelines as Topic , Practice Patterns, Physicians'/trends , Registries
9.
J Surg Oncol ; 109(2): 104-9, 2014 Feb.
Article in English | MEDLINE | ID: mdl-24449172

ABSTRACT

BACKGROUND: Cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) are increasingly used to treat peritoneal carcinomatosis from colorectal cancer. It is still relatively unknown which poor prognostic factors to avoid in order to optimize patient selection for CRS + HIPEC. METHODS: Between February 2003 and October 2011, 68 consecutive colorectal cancer patients who underwent CRS + HIPEC with a complete cytoreduction were identified from a prospective database. Survival analysis was performed using the Kaplan-Meier method, with log rank testing of differences between groups. Multivariate analysis was conducted using Cox proportional hazard regression. RESULTS: Median follow-up was 30.3 (range, 2-88) months amongst survivors. Patients with a peritoneal cancer index (PCI) of 10 or less showed improved survival over those with a PCI of 11 or higher (P = 0.03). No difference in survival was seen for the other potentially poor prognostic variables including lymph node status, synchronous peritoneal disease, peri-operative systemic chemotherapy, and rectal cancer primary. CONCLUSIONS: A low PCI was associated with improved survival. Complete CRS + HIPEC appears to result in similar survival outcomes regardless of delivery of peri-operative systemic chemotherapy. Rectal origin, lymph node status, and synchronous peritoneal disease should not be used as an absolute exclusion criteria for CRS + HIPEC based on current data.


Subject(s)
Colorectal Neoplasms/mortality , Patient Selection , Peritoneal Neoplasms/secondary , Peritoneal Neoplasms/therapy , Adult , Aged , Chemotherapy, Cancer, Regional Perfusion , Colorectal Neoplasms/pathology , Colorectal Neoplasms/therapy , Combined Modality Therapy , Disease-Free Survival , Female , Follow-Up Studies , Humans , Hyperthermia, Induced , Kaplan-Meier Estimate , Male , Middle Aged , Multivariate Analysis , Peritoneal Neoplasms/mortality
10.
Ann Surg Oncol ; 21(6): 1975-82, 2014 Jun.
Article in English | MEDLINE | ID: mdl-24398544

ABSTRACT

BACKGROUND: The debate remains whether appendiceal goblet cell cancers behave as classical carcinoid or adenocarcinoma. Treatment options are unclear and reports of outcomes are scarce. Cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (CRS+HIPEC) is considered optimal treatment for peritoneal involvement of other epithelial appendiceal tumors. METHODS: Prospective cohorts of patients treated for advanced appendiceal tumors from three peritoneal malignancy centres were collected (1994-2011). All patients underwent complete CRS+HIPEC, when possible, or tumor debulking. Demographic and outcome data for patients with goblet cell cancers were compared to patients with low- or high-grade epithelial appendiceal tumors treated during the same time period. RESULTS: Details on 45 goblet cell cancer patients were compared to 708 patients with epithelial appendix lesions. In the goblet cell group, 57.8 % were female, median age was 53 years, median peritoneal cancer index (PCI) was 24, and CRS+HIPEC was achieved in 71.1 %. These details were similar in patients with low- or high-grade epithelial tumors. Lymph nodes were involved in 52 % of goblet cell patients, similar to rates in high-grade cancers, but significantly higher than in low-grade lesions (6.4 %; p < 0.001). At 3 years, overall survival (OS) was 63.4 % for goblet cell patients, intermediate between that for high-grade (40.4-52.2 %) and low-grade (80.6 %) tumors. On multivariate analysis, tumor histology, PCI, and achievement of CRS+HIPEC were independently associated with OS. CONCLUSIONS: This data supports the concept that appendiceal goblet cell cancers behave more as high-grade adenocarcinomas than as low-grade lesions. These patients have reasonable long-term survival when treated using CRS+HIPEC, and this strategy should be considered.


Subject(s)
Adenocarcinoma/therapy , Appendiceal Neoplasms/pathology , Appendiceal Neoplasms/therapy , Carcinoid Tumor/pathology , Carcinoid Tumor/therapy , Cytoreduction Surgical Procedures , Hyperthermia, Induced , Adenocarcinoma/chemistry , Adenocarcinoma/pathology , Antibiotics, Antineoplastic/administration & dosage , Appendiceal Neoplasms/chemistry , Carcinoembryonic Antigen/analysis , Carcinoid Tumor/chemistry , Disease-Free Survival , Female , Humans , Keratin-20/analysis , Keratin-7/analysis , Male , Middle Aged , Mitomycin/administration & dosage , Neoplasm Grading , Retrospective Studies , Survival Rate
11.
J Surg Oncol ; 109(6): 548-55, 2014 May.
Article in English | MEDLINE | ID: mdl-24374723

ABSTRACT

BACKGROUND: Goblet cell carcinoid (GCC) and appendiceal mucinous neoplasms (AMNs) are considered as different appendiceal tumors. Coexistence of both tumors was occasionally noted. We further observed the concurrence in both primary tumors and their peritoneal dissemination, that is, peritoneal carcinomatosis (PC) including pseudomyxoma peritonei (PMP). METHODS: Review of our 10-year file identified two subgroups of cases with such concurrence. Group 1 is 14 cases of PC/PMP treated by surgical cytoreduction. Morphologic components of GCC, low-grade mucinous neoplasm (LMN), mucinous adenocarcinoma (MCA), and non-mucinous adenocarcinoma (NMCA) were identified separately in different organs/tissues. Group 2 is eight cases of localized primary tumors of appendix and ileocecal junction. RESULTS: In Group 1, primary tumors (11 GCC, 1 GCC + LMN, 1 MCA, 1 NMCA) were identified in appendix (13) and in rectum (1). Further review identified mixed morphologic components in 7/12 GCC cases, including GCC + LMN (2), GCC + MCA (2), GCC + NMCA (1), and GCC + MCA + NMCA (2). Over peritoneal dissemination, GCC and/or other components were coexistent at different sites and in variable combinations. In Group 2, primary tumors were initially diagnosed as GCC (7) and MCA (1). Further review identified mixed components in all cases, including GCC + LMN (3), GCC + LMN + MCA (3), GCC + MCA + NMCA (2). CONCLUSIONS: GCC may present as a component mixed with AMNs and even with conventional adenocarcinoma in both primary tumors and metastatic lesions. AMN in any given single case may show a wide morphologic spectrum. GCC and AMN may share a common tumor stem cell with potential of multiple lineage differentiations.


Subject(s)
Adenocarcinoma, Mucinous/pathology , Appendiceal Neoplasms/pathology , Carcinoid Tumor/pathology , Neoplasms, Multiple Primary/pathology , Adenocarcinoma, Mucinous/surgery , Adult , Aged , Appendectomy , Appendiceal Neoplasms/surgery , Carcinoid Tumor/surgery , Cecum/pathology , Cecum/surgery , Female , Humans , Ileum/pathology , Ileum/surgery , Male , Middle Aged , Neoplasms, Multiple Primary/surgery , Peritoneal Neoplasms/pathology , Peritoneal Neoplasms/surgery , Pseudomyxoma Peritonei/pathology , Pseudomyxoma Peritonei/surgery , Rectal Neoplasms/pathology , Rectal Neoplasms/surgery
12.
J Surg Oncol ; 107(6): 591-6, 2013 May.
Article in English | MEDLINE | ID: mdl-23129533

ABSTRACT

INTRODUCTION: Peritoneal metastases (PM) can be treated with cytoreduction surgery (CRS) with intraoperative heated intraperitoneal chemotherapy (HIPEC) plus or minus early postoperative intraperitoneal chemotherapy (EPIC). HIPEC + EPIC may be associated with more complications than HIPEC alone. METHODS: A prospective database of consecutive patients undergoing CRS + HIPEC ± EPIC at the University of Calgary between February 2000 and May 2011 was reviewed. Patient, tumor, and perioperative variables included peritoneal cancer index (PCI), completeness of cytoreduction (CCR) score, HIPEC ± EPIC type, and grade III/IV complications. RESULTS: 198 patients had a CCR score of 0/1 and received: (1) HIPEC mitomycin C + EPIC 5-fluorouracil for 5 days (n = 85; February 2000-January 2008); or (2) HIPEC oxaliplatin with IV 5-fluorouracil + no EPIC (n = 113; February 2008-May 2011). Clinicodemographics were similar except PCI was higher in the HIPEC-alone group (mean PCI 22 vs. 17; P = 0.02). The rate of grade III/IV complications was higher in the HIPEC + EPIC group (44.7% vs. 31.0%; P = 0.05). On multivariate logistic regression only HIPEC + EPIC and PCI > 26 were associated with an increased rate of complications. CONCLUSION: In patients with PM, the use of EPIC, in combination with CRS and HIPEC, is associated with an increased rate of complications. Surgeons should consider using HIPEC only (without EPIC).


Subject(s)
Adenocarcinoma/secondary , Antineoplastic Combined Chemotherapy Protocols/adverse effects , Chemotherapy, Cancer, Regional Perfusion/adverse effects , Hyperthermia, Induced , Peritoneal Neoplasms/secondary , Peritoneum/surgery , Postoperative Complications/etiology , Adenocarcinoma/drug therapy , Adenocarcinoma/surgery , Adult , Aged , Antineoplastic Agents/administration & dosage , Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Chemotherapy, Adjuvant , Chemotherapy, Cancer, Regional Perfusion/methods , Colorectal Neoplasms/pathology , Female , Fluorouracil/administration & dosage , Humans , Infusions, Parenteral , Logistic Models , Male , Middle Aged , Mitomycin/administration & dosage , Multivariate Analysis , Organoplatinum Compounds/administration & dosage , Oxaliplatin , Peritoneal Neoplasms/drug therapy , Peritoneal Neoplasms/surgery , Postoperative Complications/epidemiology , Retrospective Studies , Treatment Outcome
13.
14.
Can Respir J ; 19(2): 117-26, 2012.
Article in English | MEDLINE | ID: mdl-22536581

ABSTRACT

In a novel knowledge translation initiative, the Government of Ontario's Asthma Plan of Action funded the development of an Asthma Care Map to enable adherence with the Canadian Asthma Consensus Guidelines developed under the auspices of the Canadian Thoracic Society (CTS). Following its successful evaluation within the Primary Care Asthma Pilot Project, respiratory clinicians from the Asthma Research Unit, Queen's University (Kingston, Ontario) are leading an initiative to incorporate standardized Asthma Care Map data elements into electronic health records in primary care in Ontario. Acknowledging that the issue of data standards affects all respiratory conditions, and all provinces and territories, the Government of Ontario approached the CTS Respiratory Guidelines Committee. At its meeting in September 2010, the CTS Respiratory Guidelines Committee agreed that developing and standardizing respiratory data elements for electronic health records are strategically important. In follow-up to that commitment, representatives from the CTS, the Lung Association, the Government of Ontario, the National Lung Health Framework and Canada Health Infoway came together to form a planning committee. The planning committee proposed a phased approach to inform stakeholders about the issue, and engage them in the development, implementation and evaluation of a standardized dataset. An environmental scan was completed in July 2011, which identified data definitions and standards currently available for clinical variables that are likely to be included in electronic medical records in primary care for diagnosis, management and patient education related to asthma and COPD. The scan, sponsored by the Government of Ontario, includes compliance with clinical nomenclatures such as SNOMED-CT® and LOINC®. To help launch and create momentum for this initiative, a national forum was convened on October 2 and 3, 2011, in Toronto, Ontario. The forum was designed to bring together key stakeholders across the spectrum of respiratory care, including clinicians, researchers, health informaticists and administrators to explore and recommend a potential scope, approach and governance structure for this important project. The Pan-Canadian REspiratory STandards INitiative for Electronic Health Records (PRESTINE) goal is to recommend respiratory data elements and standards for use in electronic medical records across Canada that meet the needs of providers, administrators, researchers and policy makers to facilitate evidence-based clinical care, monitoring, surveillance, benchmarking and policy development. The focus initially is expected to include asthma, chronic obstructive pulmonary disease and pulmonary function standards elements that are applicable to many respiratory conditions. The present article summarizes the process and findings of the forum deliberations.


Subject(s)
Asthma , Electronic Health Records/standards , Pulmonary Disease, Chronic Obstructive , Asthma/diagnosis , Asthma/epidemiology , Asthma/therapy , Canada , Humans , National Health Programs , Ontario , Patient Education as Topic , Practice Guidelines as Topic , Primary Health Care , Pulmonary Disease, Chronic Obstructive/diagnosis , Pulmonary Disease, Chronic Obstructive/epidemiology , Pulmonary Disease, Chronic Obstructive/therapy , Terminology as Topic
15.
Am J Surg ; 201(5): 650-4, 2011 May.
Article in English | MEDLINE | ID: mdl-21545916

ABSTRACT

BACKGROUND: The objective of this study was to report a long-term survival analysis of a phase II protocol of cytoreductive surgery (CS) and heated intraperitoneal chemotherapy (HIPEC) in the treatment of peritoneal carcinomatosis (PCs). METHODS: Between 2000 and 2008, 101 consecutive patients were treated with CS, HIPEC and early postoperative intraperitoneal chemotherapy using a standardized protocol. Disease recurrence and mortality data were collected prospectively. Primary outcomes were median, 3-year, and 5-year disease-free survival (DFS) and overall survival (OS). RESULTS: The median age was 49 years (range, 18-77 years), and the majority (82%) had complete CS with no gross residual cancer. Tumor types included appendiceal (n = 58), colorectal (n = 31), and other (n = 12). Median follow-up was 28 months (range, 0-119 months), with minimum of 24 months among survivors. For appendiceal tumors, median DFS was 34 months (range, 0-119 months) and OS has not yet been defined. Three-year and 5-year DFS was 48% and 42%, respectively, and 3-year and 5-year OS was 76% and 62%, respectively. For colorectal carcinomatosis, median disease-free and OS was 9 months (range, 0-87 months) and 27 months (range, 0-87 months), respectively. Three-year and 5-year DFS was 34% and 26%, respectively, and 3-year and 5-year OS was 38% and 34%, respectively. CONCLUSIONS: Long-term survival with regional treatment of PC from appendiceal or colorectal primary tumors with CS and HIPEC is achievable.


Subject(s)
Carcinoma/therapy , Peritoneal Neoplasms/therapy , Adolescent , Adult , Aged , Alberta/epidemiology , Carcinoma/epidemiology , Combined Modality Therapy/methods , Female , Follow-Up Studies , Humans , Male , Middle Aged , Peritoneal Neoplasms/epidemiology , Retrospective Studies , Survival Rate/trends , Time Factors , Treatment Outcome , Young Adult
16.
J Surg Oncol ; 103(2): 175-8, 2011 Feb.
Article in English | MEDLINE | ID: mdl-21259253

ABSTRACT

BACKGROUND AND OBJECTIVES: Inferior vena cava (IVC) leiomyosarcomas are rare and are a relatively small subset of retroperitoneal sarcomas. The current approach is resection and ligation or reconstruction of the IVC. This study was undertaken to analyze the outcomes associated with the use of neoadjuvant radiotherapy and IVC reconstruction in the treatment of IVC leiomyosarcoma. METHODS: A retrospective clinicopathological review of patients treated during a 10-year period. RESULTS: Four patients were treated with neoadjuvant radiotherapy, median 47.5 Gy, all underwent margin negative resection with 75% of the tumors being high grade and all patients requiring resection of adjacent organs. Reconstruction of the IVC was performed with an autologous superficial femoral vein graft. There were no mortalities and the morbidity rate was 50%. At a median follow up of 37 months; two patients had a patent IVC, no patients had a local recurrence, and one patient developed a distant metastases treated successfully with metastectomy. CONCLUSIONS: Neoadjuvant radiotherapy and resection of the IVC leiomyosarcoma resulted in 100% local control, and all patients are alive at median follow up of 37 months. IVC reconstruction with the superficial femoral vein is safe and associated with acceptable short and long term morbidity.


Subject(s)
Leiomyosarcoma/radiotherapy , Leiomyosarcoma/surgery , Vascular Neoplasms/radiotherapy , Vascular Neoplasms/surgery , Vena Cava, Inferior/surgery , Female , Humans , Male , Middle Aged , Radiotherapy, Adjuvant , Retroperitoneal Neoplasms/radiotherapy , Retroperitoneal Neoplasms/surgery , Retrospective Studies , Treatment Outcome
17.
Ann Surg Oncol ; 18(1): 207-13, 2011 Jan.
Article in English | MEDLINE | ID: mdl-20697824

ABSTRACT

BACKGROUND: Peritoneal sarcomatosis carries a dismal prognosis with median survival of 12 months and no 5-year survivors. The treatment for sarcomatosis has mostly been chemotherapy and surgery for palliation. Recently, cytoreduction (CRS) and intraperitoneal chemotherapy (IPC) has been tried as an alternative for improving regional control and survival, but the efficacy of this combined treatment is difficult to determine. The objective of this review is to evaluate all available evidence to determine the efficacy of this treatment modality. MATERIALS AND METHODS: Searches for studies published in peer-reviewed journals before October 2010 were carried out on 3 databases. The reference lists of all identified articles were reviewed for further relevant studies. Relevant studies were then evaluated by 3 investigators, and the quality of each study was assessed. Studies that met an established criterion were reviewed for clinical effectiveness with a tabulation of all results. RESULTS: Eight prospective and one randomized trial were available representing 240 patients treated with CRS and IPC. The median disease-free survival ranged from 2.3 to 22 months, median survival ranged from 5.5 to 39.6 months, and the 5-year survival ranged from 7% to 65%. The surgical morbidity varied from 9% to 44% and the mortality from 0% to 11%. CONCLUSIONS: Based on the available data, this treatment approach is currently not recommended in the treatment of sarcomatosis except in experienced centers, in well-selected patients and as part of an experimental protocol.


Subject(s)
Antineoplastic Agents/therapeutic use , Chemotherapy, Cancer, Regional Perfusion , Peritoneal Neoplasms/drug therapy , Peritoneal Neoplasms/surgery , Sarcoma/drug therapy , Sarcoma/surgery , Clinical Trials as Topic , Combined Modality Therapy , Humans , Injections, Intraperitoneal , Peritoneal Neoplasms/pathology , Sarcoma/secondary
18.
Ann Surg Oncol ; 18(3): 697-703, 2011 Mar.
Article in English | MEDLINE | ID: mdl-20853031

ABSTRACT

BACKGROUND: Retroperitoneal nodal recurrence after curative resection of colorectal cancer is an uncommon and challenging problem. The evidence for salvage surgery is limited and remains controversial, particularly when major vascular structures are involved. Some reports have demonstrated a survival benefit after metachronous resection of retroperitoneal metastasis with and without concomitant aortic resection. We conducted a systematic review of the literature to find evidence in favor of or against salvage surgery. METHODS: Electronic searches of the MEDLINE, Cochrane, and EMBASE database were performed. Additional papers were identified by a manual search of the references from the key articles. Only peer-reviewed articles published in the English language were evaluated. RESULTS: A total of nine suitable studies were identified: three case reports and six larger series, of which one was a case-control study. Including our case reports, the total number of patients who underwent surgical resection that are available for review was 110. Median overall survival was between 34 and 44 months and median disease-free survival between 17 and 21 months. Concomitant resection of major vessels with graft replacement was feasible with survival ranging from 19 months to 18 years. There was no reported mortality associated with surgical salvage of retroperitoneal recurrence and the overall morbidity was 17-33%. CONCLUSIONS: The current literature suggests that more aggressive surgical treatment of retroperitoneal nodal recurrence in CRC has acceptable morbidity and may be associated with an improved survival in well-selected patients.


Subject(s)
Adenocarcinoma , Colorectal Neoplasms , Lymph Nodes , Neoplasm Recurrence, Local , Retroperitoneal Neoplasms , Salvage Therapy , Aged , Humans , Male , Middle Aged , Adenocarcinoma/secondary , Adenocarcinoma/surgery , Colorectal Neoplasms/pathology , Colorectal Neoplasms/surgery , Lymph Nodes/surgery , Neoplasm Recurrence, Local/pathology , Neoplasm Recurrence, Local/surgery , Retroperitoneal Neoplasms/secondary , Retroperitoneal Neoplasms/surgery , Treatment Outcome
19.
Can J Surg ; 53(5): 335-41, 2010 Oct.
Article in English | MEDLINE | ID: mdl-20858379

ABSTRACT

Innovation is defined as the introduction of something new, whether an idea, method or device. In this article, we describe the most important and innovative concepts and techniques that have advanced patient care within modern surgical subspecialties. We performed a systematic literature review and consulted academic subspecialty experts to evaluate recent changes in practice. The identified innovations included reduced blood loss and improved training in hepatobiliary surgery, total mesorectal excision and neoadjuvant therapies in colorectal surgery, prosthetic mesh in outpatient surgery, sentinel lymph node theory in surgical oncology, endovascular and wire-based skills in vascular and cardiovascular surgery, and the acceptance of abnormal anatomy through damage-control procedures in trauma and critical care. The common denominator among all subspecialties is an improvement in patient care manifested as a decrease in morbidity and mortality. Surgeons must continue to pursue innovative thinking, technological advances, improved training and systematic research.


Subject(s)
Specialization , Surgical Procedures, Operative/trends , Aortic Aneurysm, Abdominal/surgery , Hernia, Inguinal/surgery , Humans , Liver/surgery , Multiple Trauma/surgery , Neoplasms/surgery , Sentinel Lymph Node Biopsy
20.
Am J Surg ; 199(6): 770-5, 2010 Jun.
Article in English | MEDLINE | ID: mdl-20163783

ABSTRACT

BACKGROUND: Extensive literature identifies that the quality of surgery not only influences morbidity and mortality but also long-term survival and function. This mandates that we develop a system to capture this information on a real-time basis. METHODS: A synoptic surgical template for breast cancer was created; this was digitized and made available to all surgeons in Alberta. RESULTS: The data reference 1,392 breast cancer procedures. Ninety-one percent of reports were submitted within 1 hour and 97% of reports were submitted within 24 hours. Fifty-two percent of reports were completed within 5 minutes. Information quality with respect to completeness of staging information was present in 89%. Eighty-four percent complied with practice guidelines and 89% of breast surgeons adopted the template. Seventy-five percent of users were moderately or highly satisfied with the system. CONCLUSIONS: The experience with the development and implementation of synoptic surgical reporting has proven to be a successful tool for generating quality surgical data.


Subject(s)
Breast Neoplasms/surgery , Quality of Health Care , Alberta/epidemiology , Breast Neoplasms/diagnosis , Breast Neoplasms/epidemiology , Delphi Technique , Diagnostic Imaging , Female , Guideline Adherence , Humans , Internet , Mastectomy/methods , Mastectomy/standards , Practice Guidelines as Topic , Survival Rate , User-Computer Interface
SELECTION OF CITATIONS
SEARCH DETAIL
...