Video-assisted thoracoscopic thoracic duct sealing is inconsistent when performed with a bipolar vessel-sealing device in healthy cats
| Autor: | Jeffrey W. Mitchell, Philipp D. Mayhew, Michele A. Steffey, Peter J Pascoe, Eric G. Johnson |
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| Rok vydání: | 2018 |
| Předmět: |
medicine.medical_specialty
Chyle 040301 veterinary sciences 030232 urology & nephrology Thoracic duct Thoracic Duct 0403 veterinary science 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine medicine.artery medicine Animals Prospective Studies Ligation Aorta CATS General Veterinary Thoracic Surgery Video-Assisted business.industry Thoracoscopy Lymphography Vessel sealing 04 agricultural and veterinary sciences Surgery Lymphatic system medicine.anatomical_structure chemistry Cardiothoracic surgery Cats Female business Indocyanine green |
| Zdroj: | Veterinary Surgery. 47:O84-O90 |
| ISSN: | 0161-3499 |
| DOI: | 10.1111/vsu.12788 |
| Popis: | Objective To describe a technique for video-assisted thoracoscopic (VATS) thoracic duct ligation (TDL) in normal cats with a bipolar vessel-sealing device and to assess durability of the seal. Study design Prospective case series. Animals Six healthy research cats. Methods Cats were placed under anesthesia for computed tomography lymphangiography (CTLA) to identify thoracic duct anatomy. On the basis of CTLA findings, cats were positioned in either right or left lateral recumbency for a 3-port VATS TDL. Thoracic duct branches were dissected from the aorta after subcutaneous indirect near-infrared fluorescence (NIRF) lymphography with indocyanine green was performed to optimize detection. A vessel-sealing device was used to seal each thoracic duct in 1 or more locations. Postattenuation, indirect NIRF lymphography was repeated to confirm complete occlusion of thoracic duct flow. CTLA was repeated in all cats 3 months postoperatively. Results The thoracic duct was surgically approached from the right in 3 cats and from the left in 3 cats. A median of 2.5 (range 1-6) TDL seal sites were applied. In 2 cats, leakage of chyle was detected during dissection. At 3 months postoperatively, CTLA confirmed reestablished chylous flow in 5 of 6 cats, appearing to occur through recanalization of previously sealed sites rather than through development of de novo lymphatic vessels. Conclusion VATS TDL is feasible in cats, although the variable and delicate nature of feline thoracic duct anatomy should be considered preoperatively. Clinical significance Bipolar vessel-sealing devices are not a durable modality for thoracic duct sealing in healthy cats in a seal only fashion. |
| Databáze: | OpenAIRE |
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