Evidence map›Paper›PMID 19704072›Full record

Trial reportJournal of the National Cancer Institute2009

Surgeon training, protocol compliance, and technical outcomes from breast cancer sentinel lymph node randomized trial.

David N Krag, Takamaru Ashikaga, Seth P Harlow, Joan M Skelly, Thomas B Julian, Ann M Brown, Donald L Weaver, Norman Wolmark, National Surgical Adjuvant Breast and Bowel Project

Abstract readComparative StudyRandomized Controlled Trial
In one paragraph

Trial report in Journal of the National Cancer Institute, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Axillary treatment for operable primary breast cancer.The Cochrane database of systematic reviews · 2017
    Pooled it
  2. Trial
  3. Breast cancer metastasis through the lympho-vascular system.Clinical & experimental metastasis · 2018
    Review
  4. Article
  5. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

David N KragDepartment of Surgery, College of Medicine, University of Vermont, Given Building, Rm E309, 89 Beaumont Ave, Burlington, VT 05405, USA. david.krag@uvm.edu
Takamaru Ashikaga
Seth P Harlow
Joan M Skelly
Thomas B Julian
Ann M Brown
Donald L Weaver
Norman Wolmark
National Surgical Adjuvant Breast and Bowel Project

Funding

PRIMARY CANCER THERAPY GROUP--NSABP (HEADQUARTERS)U10CA012027 · NCI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI WOLMARK, NORMAN · 1985 to 2012
$117.2M
NSABP Foreign AccrualsU10CA037377 · NCI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI WOLMARK, NORMAN · 1985 to 2014
$116.5M
STUDY TO ASSESS RALOXIFENE FOR PREVENTING BREAST CANCERU10CA069974 · NCI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI COSTANTINO, JOSEPH P. · 1995 to 2013
$62.4M
PRIMARY BREAST CANCER THERAPY--BIOSTATISTICS CENTERU10CA069651 · NCI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI COSTANTINO, JOSEPH P. · 1995 to 2012
$52.1M
TUMOR GROWTH AND METASTASISP30CA022435 · NCI · UNIVERSITY OF VERMONT &ST AGRIC COLLEGE · PI FOGARTY, JOHN P · 1985 to 2007
$9.6M
Sentinel Node Versus Axillary Dissection in Breast CancerR01CA074137 · NCI · UNIVERSITY OF VERMONT &ST AGRIC COLLEGE · PI KRAG, DAVID N · 2005 to 2012
$5.2M
NCI NIH HHS 5R01CA74137-9NCI NIH HHS P30 CA022435NCI NIH HHS R01 CA074137NCI NIH HHS U10 CA012027NCI NIH HHS U10 CA037377NCI NIH HHS U10 CA069651NCI NIH HHS U10 CA069974NCI NIH HHS U10-CA-12027NCI NIH HHS U10-CA-37377NCI NIH HHS U10-CA-69651NCI NIH HHS U10-CA-69974
6 · The paper itself

Abstract

backgroundThe National Surgical Adjuvant Breast and Bowel Project B-32 trial was designed to determine whether sentinel lymph node resection can achieve the same therapeutic outcomes as axillary lymph node resection but with fewer side effects and is one of the most carefully controlled and monitored randomized trials in the field of surgical oncology. We evaluated the relationship of surgeon trial preparation, protocol compliance audit, and technical outcomes.

methodsPreparation for this trial included a protocol manual, a site visit with key participants, an intraoperative session with the surgeon, and prerandomization documentation of protocol compliance. Training categories included surgeons who submitted material on five prerandomization surgeries and were trained by a core trainer (category 1) or by a site trainer (category 2). An expedited group (category 3) included surgeons with extensive experience who submitted material on one prerandomization surgery. At completion of training, surgeons could accrue patients. Two hundred twenty-four surgeons enrolled 4994 patients with breast cancer and were audited for 94 specific items in the following four categories: procedural, operative note, pathology report, and data entry. The relationship of training method; protocol compliance performance audit; and the technical outcomes of the sentinel lymph node resection rate, false-negative rate, and number of sentinel lymph nodes removed was determined. All statistical tests were two-sided.

resultsThe overall sentinel lymph node resection success rate was 96.9% (95% confidence interval [CI] = 96.4% to 97.4%), and the overall false-negative rate was 9.5% (95% CI = 7.4% to 12.0%), with no statistical differences between training methods. Overall audit outcomes were excellent in all four categories. For all three training groups combined, a statistically significant positive association was observed between surgeons' average number of procedural errors and their false-negative rate (rho = +0.188, P = .021).

conclusionsAll three training methods resulted in uniform and high overall sentinel lymph node resection rates. Subgroup analyses identified some variation in false-negative rates that were related to audited outcome performance measures.

Indexed as

Education, Medical, ContinuingGuideline AdherenceMedical AuditSentinel Lymph Node BiopsyAdultAgedBreast NeoplasmsFalse Negative ReactionsFemaleHumansLymphatic MetastasisLymph NodesMaleMedical RecordsMiddle AgedNeoplasm Staging

Identifiers

PMID19704072
PMCPMC2758311

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.