Management and Outcome Differences in Supraglottic Cancer Between Ontario, Canada, and the Surveillance, Epidemiology, and End Results Areas of the United States

Groome, Patti A.; O’Sullivan, Brian; Irish, Jonathan C.; Rothwell, Deanna M.; Schulze, Karleen; Warde, Padraig; Schneider, Ken; MacKenzie, Robert G.; Hodson, D. Ian; Hammond, James R.; Gulavita, Sunil; Eapen, Libni; Dixon, Peter; Bissett, Randy J.; Mackillop, William J.

doi:10.1200/jco.2003.10.106

Cited by 94 publications

(72 citation statements)

References 33 publications

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“…The KRCC outpatient chart is appropriate for a study of patients with head and neck cancer because it contains a complete relevant history and physical examination for each patient and because the decisions on treatment are almost invariably made in the outpatient setting. The outpatient charts from the regional cancer treatment centers of Cancer Care Ontario have been used in our research unit for numerous studies [12][13][14].…”

Section: Data Sourcementioning

confidence: 99%

Interrater reliability of measurements of comorbid illness should be reported

Hall

Groome

Streiner

et al. 2006

Journal of Clinical Epidemiology

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Section: Data Sourcementioning

confidence: 99%

Interrater reliability of measurements of comorbid illness should be reported

Hall

Groome

Streiner

et al. 2006

Journal of Clinical Epidemiology

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“…Whereas outcomes for supraglottic SCCa vary, they are generally poor and significantly worse than their glottic counterpart, with 5‐year overall survival ranging from 47% to 56% for stage III disease and 29% to 45% for stage IV disease . This can be attributed to the location of malignancy, allowing it to remain asymptomatic until it has reached an advanced stage .…”

Section: Introductionmentioning

confidence: 99%

Supraglottic Squamous Cell Carcinoma: A Population‐Based Study of 22,675 Cases

Patel¹,

Echanique²,

Yip³

et al. 2018

The Laryngoscope

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Objectives/Hypothesis The authors used the Surveillance, Epidemiology, and End Results (SEER) database to analyze epidemiological features of patients presenting with supraglottic squamous cell carcinoma (SCCa) and to evaluate treatment trends and outcomes. Methods The SEER database was queried for patients with supraglottic SCCa from 1973 to 2013. Information on demographics; tumor size; histologic grade; American Joint Committee on Cancer (AJCC) stage; SEER local, regional, distant stage; and treatment modality were analyzed. Results There were 22,675 cases of primary supraglottic SCCa identified. The mean age at diagnosis was 62.3 years, with males accounting for 70.3% of all cases. A high percentage of patients presented with stage IV disease (44.9%). The most common treatment modality was radiotherapy (46.6%), followed by combination of surgery and radiotherapy (29.2%) and surgery alone (15.0%). Overall 5‐year disease‐specific survival (DSS) for all cases was 54.0%. When stratified by treatment modality, 5‐year DSS was best for patients receiving surgery alone (64.2%). However, for patients with AJCC stage IV disease, survival was significantly better with combined surgery and radiotherapy (52.5%). Conclusion In general, supraglottic SCCa is treated most commonly with radiotherapy, followed by surgery and radiotherapy. Patients managed surgically had better 5‐year DSS when compared to patients treated by other modalities. However, when stratified by stage, patients with AJCC stage IV disease had significantly better survival with combined surgery and radiotherapy. Of patients receiving surgery, supraglottic laryngectomy was found to have a significantly better 5‐year DSS when compared to both total laryngectomy and laryngectomy, not otherwise specified. Level of Evidence NA Laryngoscope, 129:1822–1827, 2019

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“…These differences are in keeping with the findings of previous survey research and clinical studies that have compared medical and surgical practice patterns between Canadian and American surgeons. [6][7][8][9][10][11] These studies have consistently reported that American surgeons and physicians are more likely to order diagnostic tests and recommend surgery and interventional procedures compared with their Canadian counterparts. To our knowledge, no previous studies have specifically compared gastrointestinal surgery practice patterns between the 2 countries.…”

Section: Discussionmentioning

confidence: 99%

“…Previous studies have reported that there are differences in clinical practice between Canadian and American physicians. [6][7][8][9][10][11] However, there are few data comparing general surgical practice patterns between the 2 countries. The purpose of this study was to compare the practice patterns of Canadian and American colorectal surgeons regarding the surgical management of ulcerative colitis.…”

mentioning

confidence: 99%

Surgical management of ulcerative colitis: a comparison of Canadian and American colorectal surgeons

2011

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Background: Ileal pouch anal anastomosis (IPAA) to surgically manage ulcerative colitis may involve multiple separate surgical procedures, impacting treatment costs, length of stay in hospital, complication rates and patient outcomes, and there is currently no accepted standard of care regarding the number of stages that should be performed. The purpose of this study was to compare the practice patterns of Canadian and American colorectal surgeons regarding the surgical management of ulcerative colitis. Methods:A questionnaire was mailed to all practisng fellows of the American Society of Colon and Rectal Surgeons (ASCRS) in Canada and the United States. Surgeons were asked to describe their typical practices for 3 clinical scenarios.Results: Questionnaires were mailed to 40 Canadian and 873 American ASCRS fellows with response rates of 86% and 62%, respectively. In the case of a patient who has had a prior colectomy, who is not taking steroids and in whom a tension-free IPAA is possible, 44% of Canadian surgeons would perform IPAA alone and 56% would perform IPAA with a loop ileostomy. In contrast, only 26% of American surgeons would perform IPAA alone and 74% would perform IPAA with a loop ileostomy (p = 0.002). In the case of a patient who has not had previous surgery, who is taking 10 mg/day of prednisone and in whom a tension-free IPAA is possible, the majority of both Canadian and American surgeons would perform an IPAA with a loop ileostomy (93% and 89%, respectively, p = 0.06). In the case of a patient who has not had previous surgery, who is taking 40 mg/day of prednisone and in whom a tension-free IPAA is possible, 45% of Can adian surgeons would perform a subtotal colectomy with an end ileostomy compared with 14% of American surgeons (p < 0.001). Conclusion:There are significant differences in the surgical management of ulcerative colitis between Canadian and American colorectal surgeons.Contexte : L'anastomose iléo-anale avec poche (AIAP) pour traiter chirurgicalement la colite ulcéreuse peut comporter de multiples interventions chirurgicales distinctes, ce qui a un effet sur les coûts du traitement, la durée du séjour à l'hôpital, les taux de complication et les résultats pour les patients. Il n'y a actuellement pas de norme de soins acceptée en ce qui a trait au nombre d'étapes à suivre. Cette étude visait à comparer les tendances de la pratique des spécialistes canadiens et américains de la chirurgie colorectale en ce qui a trait au traitement chirurgical de la colite ulcéreuse. Méthodes :On a envoyé un questionnaire par la poste à tous les associés actifs de la Société américaine des chirurgiens du côlon et du rectum (American Society of Colon and Rectal Surgeons -ASCRS) au Canada et aux États-Unis. Les chirurgiens devaient décrire leur pratique habituelle dans 3 scénarios cliniques.Résultats : Les questionnaires ont été envoyés par la poste à 40 associés canadiens et 873 associés américains de l'ASCRS et les taux de réponse ont atteint 86 % et 62 % respectivement. Dans le cas d'un patient qui a ...

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Management and Outcome Differences in Supraglottic Cancer Between Ontario, Canada, and the Surveillance, Epidemiology, and End Results Areas of the United States

Cited by 94 publications

References 33 publications

Interrater reliability of measurements of comorbid illness should be reported

Interrater reliability of measurements of comorbid illness should be reported

Supraglottic Squamous Cell Carcinoma: A Population‐Based Study of 22,675 Cases

Surgical management of ulcerative colitis: a comparison of Canadian and American colorectal surgeons

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