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Title: Differences in quality of life outcomes after paraclavicular decompression for thoracic outlet syndrome.
Author: Al Rstum Z, Tanaka A, Sandhu HK, Miller CC, Saqib NU, Besho JM, Charlton-Ouw KM, Azizzadeh A.
Journal: J Vasc Surg; 2020 Oct; 72(4):1421-1426. PubMed ID: 32115317.
Abstract:
BACKGROUND: Thoracic outlet syndrome (TOS) results from compression of the neurovascular structures in the thoracic outlet. Decompression provides relief of TOS symptoms. However, little is known about long-term function and quality of life (QoL) from a patient's perspective. The purpose of this study was to evaluate surgical and QoL outcomes after surgical decompression of the thoracic outlet using a paraclavicular approach. METHODS: A prospectively maintained database was used to conduct a retrospective review of patients who underwent thoracic outlet decompression between August 2004 and August 2018. We excluded patients without complete follow-up data. Functional outcomes were assessed by the Derkash classification (poor, fair, good, excellent) using contingency table methods, and QoL was assessed by the 12-Item Short Form Health Survey (SF-12) using general linear models. SF-12 was scored by published criteria, and scale-specific and aggregate mental and physical health-related QoL scores were computed. Aggregate QoL scores range from 0 (terrible) to 100 (perfect). Secondary outcomes included mortality, complications, and duration of hospital stay. RESULTS: We performed 105 operations for TOS, and 100 patients with complete follow-up data were included in the study. Five patients were lost to follow-up. Median age was 35 (interquartile range, 24-47) years, and 58 (58%) were female. The median duration of hospital stay was 4 (interquartile range, 3-5.5) days. Of these patients, 46 had venous etiology, 8 arterial, 42 neurogenic, and 4 mixed vascular and neurogenic. Good or excellent Derkash results were reported in 77 (77%) patients, 46 of 54 (85%) of those with vascular TOS vs 31 of 46 (67%) of those with neurogenic etiology (P < .036). SF-12 score was obtained in 93 of 100 (93%) with a median duration from surgery of 6.1 (3.3-9.3) years. Patients with neurogenic TOS (NTOS) reported significantly lower aggregate mental health QoL than patients with vascular-only TOS (57 vs 59; P < .016). This effect persisted across the entire duration of follow-up and was unaffected by time from surgery (regression P for time = .509). In contrast, aggregate physical function QoL was unaffected by neurogenic etiology (P = .303), and all patients improved linearly with time (0.5 scale unit/y; P < .009). Three patients with incomplete relief of symptoms after paraclavicular decompression for NTOS underwent pectoralis minor decompression. There were no deaths or injuries to the long thoracic nerve. Complications included pleural effusion or hemothorax requiring evacuation (n = 6), neurapraxia (n = 6), and lymph leak (n = 2) treated with tube thoracostomy. CONCLUSIONS: NTOS is associated with significantly worse functional outcome assessed by the Derkash classification. NTOS also demonstrated worse composite mental health QoL, which did not improve over time. In contrast, composite physical health QoL improved linearly with time from surgery regardless of etiology of TOS.

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