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From the JAMA Network |

The Need to Revisit VTE Quality Measures

Christine V. Kinnier, MD1,2; Cindy Barnard, MBA, MSJS, CPHQ3; Karl Y. Bilimoria, MD, MS1,3
[+] Author Affiliations
1Surgical Outcomes and Quality Improvement Center, Department of Surgery, Feinberg School of Medicine, Northwestern University and Northwestern Memorial Hospital, Chicago, Illinois
2Department of Surgery, Massachusetts General Hospital, Boston
3Department of Quality Strategies, Northwestern Memorial Hospital, Chicago, Illinois
JAMA. 2014;312(3):286-287. doi:10.1001/jama.2014.1841.
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Extract

JAMA Otolaryngology–Head & Neck Surgery

Prospective Study of Venous Thromboembolism in Patients With Head and Neck Cancer After Surgery: Interim Analysis

Daniel Clayburgh, MD, PhD; Will Stott, BS; Teresa Kochanowski, ANP-C; Renee Park, MD; Kara Detwiller, MD; Maria Buniel, MD; Paul Flint, MD; Joshua Schindler, MD; Peter Andersen, MD; Mark Wax, MD; Neil D. Gross, MD

Objectives To prospectively determine the incidence of venous thromboembolism (VTE) following major head and neck surgery. At the midpoint of enrollment, an interim analysis was performed to determine if it was ethical to continue this study as an observational study without routine anticoagulation.

Design Prospective, observational cohort study.

Setting Academic surgical center.

Patients The interim analysis comprised 47 subjects.

Main Outcome Measure The total number of new cases of VTE (superficial and deep) identified within 30 days of surgery and confirmed on diagnostic imaging. These cases were further categorized as clinically relevant and nonclinically relevant. Clinically relevant VTEs were those requiring more than 6 weeks of anticoagulation or were associated with any negative impact on clinical course. On postoperative day 2 or 3, subjects were clinically examined and received duplex ultrasonography. Subjects with negative findings from examination and ultrasonography were followed up clinically; subjects with evidence of deep venous thrombus or pulmonary embolism were given therapeutic anticoagulation. Subjects with superficial VTE received repeated ultrasonography on postoperative days 4 to 6. Subjects were monitored for 30 days after surgery.

Results Three subjects (6%) were identified as having clinically significant VTE: 2 cases of deep venous thrombus and 1 case of pulmonary embolism. Two additional subjects had lower extremity superficial VTE without clinical findings, which were detected by ultrasonography alone. No statistically significant differences were seen between patients with VTE and those without VTE.

Conclusions This interim analysis of the first prospective study of the incidence of VTE in patients with head and neck cancer showed a VTE rate slightly higher than previously estimated in retrospective studies. There have been no unexpected serious adverse events and no rationale for early termination of the study.

JAMA Otolaryngol Head Neck Surg. 2013;139(2):161-167. doi:10.1001/jamaoto.2013.1372.

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