Abstract
Objective: To describe a technique for video-assisted thoracoscopic surgery (VATS) extirpation of the tracheobronchial lymph nodes (TBLN), and to describe the quality of biopsy specimens obtained. Design: Experimental study. Animals: Purpose-bred male hound-mix research dogs (n=8). Methods: Dogs were randomized to groups of left-sided or right-sided VATS approaches. One lung ventilation was used and TBLN dissection was achieved using a vessel-sealing device. Results: TBLNs ipsilateral to the approach were successfully identified and removed thoracoscopically in 7 dogs. A 3-port technique was used in 6 dogs and 4 ports were used in 2 dogs. Observed complications included mild-moderate hemorrhage from the perinodal tissue controlled thoracoscopically (n=2), inability to locate any TBLN (1), and difficulty achieving or maintaining one-lung ventilation (4). No other major complications occurred and all dogs recovered uneventfully. Median percentage surface area of the bisected lymph nodes affected by crush artifact was 20% (range, 0-40%). Areas of crush artifact were present in central (7/11) and peripheral (9/11) locations. Conclusions and Clinical Relevance: Thoracoscopic TBLN extirpation is a feasible technique in dogs with normal TBLN and may be useful for obtaining more detailed staging on microscopic disease status in oncologic patients with normal-sized TBLNs. Further study is warranted to determine the feasibility and limitations of this technique in clinical patients with overt lymphadenopathy.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 50-58 |
| Number of pages | 9 |
| Journal | Veterinary Surgery |
| Volume | 44 |
| Issue number | S1 |
| DOIs | |
| State | Published - Jun 1 2015 |
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ASJC Scopus subject areas
- veterinary(all)
Cite this
Video-Assisted Thoracoscopic Extirpation of the Tracheobronchial Lymph Nodes in Dogs. / Steffey, Michele A; Daniel, Leticia; Mayhew, Philipp; Affolter, Verena K; Soares, Joao H N; Smith, Andrea.
In: Veterinary Surgery, Vol. 44, No. S1, 01.06.2015, p. 50-58.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Video-Assisted Thoracoscopic Extirpation of the Tracheobronchial Lymph Nodes in Dogs
AU - Steffey, Michele A
AU - Daniel, Leticia
AU - Mayhew, Philipp
AU - Affolter, Verena K
AU - Soares, Joao H N
AU - Smith, Andrea
PY - 2015/6/1
Y1 - 2015/6/1
N2 - Objective: To describe a technique for video-assisted thoracoscopic surgery (VATS) extirpation of the tracheobronchial lymph nodes (TBLN), and to describe the quality of biopsy specimens obtained. Design: Experimental study. Animals: Purpose-bred male hound-mix research dogs (n=8). Methods: Dogs were randomized to groups of left-sided or right-sided VATS approaches. One lung ventilation was used and TBLN dissection was achieved using a vessel-sealing device. Results: TBLNs ipsilateral to the approach were successfully identified and removed thoracoscopically in 7 dogs. A 3-port technique was used in 6 dogs and 4 ports were used in 2 dogs. Observed complications included mild-moderate hemorrhage from the perinodal tissue controlled thoracoscopically (n=2), inability to locate any TBLN (1), and difficulty achieving or maintaining one-lung ventilation (4). No other major complications occurred and all dogs recovered uneventfully. Median percentage surface area of the bisected lymph nodes affected by crush artifact was 20% (range, 0-40%). Areas of crush artifact were present in central (7/11) and peripheral (9/11) locations. Conclusions and Clinical Relevance: Thoracoscopic TBLN extirpation is a feasible technique in dogs with normal TBLN and may be useful for obtaining more detailed staging on microscopic disease status in oncologic patients with normal-sized TBLNs. Further study is warranted to determine the feasibility and limitations of this technique in clinical patients with overt lymphadenopathy.
AB - Objective: To describe a technique for video-assisted thoracoscopic surgery (VATS) extirpation of the tracheobronchial lymph nodes (TBLN), and to describe the quality of biopsy specimens obtained. Design: Experimental study. Animals: Purpose-bred male hound-mix research dogs (n=8). Methods: Dogs were randomized to groups of left-sided or right-sided VATS approaches. One lung ventilation was used and TBLN dissection was achieved using a vessel-sealing device. Results: TBLNs ipsilateral to the approach were successfully identified and removed thoracoscopically in 7 dogs. A 3-port technique was used in 6 dogs and 4 ports were used in 2 dogs. Observed complications included mild-moderate hemorrhage from the perinodal tissue controlled thoracoscopically (n=2), inability to locate any TBLN (1), and difficulty achieving or maintaining one-lung ventilation (4). No other major complications occurred and all dogs recovered uneventfully. Median percentage surface area of the bisected lymph nodes affected by crush artifact was 20% (range, 0-40%). Areas of crush artifact were present in central (7/11) and peripheral (9/11) locations. Conclusions and Clinical Relevance: Thoracoscopic TBLN extirpation is a feasible technique in dogs with normal TBLN and may be useful for obtaining more detailed staging on microscopic disease status in oncologic patients with normal-sized TBLNs. Further study is warranted to determine the feasibility and limitations of this technique in clinical patients with overt lymphadenopathy.
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UR - http://www.scopus.com/inward/citedby.url?scp=84934438372&partnerID=8YFLogxK
U2 - 10.1111/j.1532-950X.2014.12204.x
DO - 10.1111/j.1532-950X.2014.12204.x
M3 - Article
VL - 44
SP - 50
EP - 58
JO - Veterinary Surgery
JF - Veterinary Surgery
SN - 0161-3499
IS - S1
ER -