Complications of Hepatic Surgery in Companion Animals

May, Lauren R.; Mehler, Stephen J.

doi:10.1016/j.cvsm.2011.05.007

Cited by 21 publications

(38 citation statements)

References 22 publications

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“…Resection of right and central division hepatic tumors often pose a surgical challenge, as the right lateral and medial liver lobes are adhered to a portion of the caudal vena cava. As a result, dissection in this region carries the risk of life‐threatening hemorrhage . Furthermore, the 2 lobes of the central division have closely associated vasculature and should be removed en bloc to prevent ischemia and secondary tissue necrosis .…”

Section: Discussionmentioning

confidence: 99%

“…The recommended surgical technique, risk of life‐threatening hemorrhage, and patient prognosis vary depending on the lobar location of the tissue mass to be excised. Preoperative knowledge of hepatic mass location is clearly of particular value to the surgeon, as this partially dictates the feasibility of surgical resection, the potential likelihood of intraoperative complications, and the overall surgical risk to the patient …”

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confidence: 99%

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Diagnostic Accuracy of Ultrasound to Predict the Location of Solitary Hepatic Masses in Dogs

2016

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Section: Discussionmentioning

confidence: 99%

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confidence: 99%

Diagnostic Accuracy of Ultrasound to Predict the Location of Solitary Hepatic Masses in Dogs

2016

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“…), and anticipated complications (Liptak et al . , May & Mehler ) vary considerably with the location of the mass within the liver. The left hepatic lobes are relatively mobile and are separated from the remaining liver by a deep fissure.…”

Section: Introductionmentioning

confidence: 99%

Ultrasonographic and CT accuracy in localising surgical‐ or necropsy‐ confirmed solitary hepatic masses in dogs

Cheney

Coleman

Voges

et al. 2019

J of Small Animal Practice

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Objectives To estimate the sensitivity and specificity of ultrasound and CT for localising solitary hepatic masses to particular liver divisions. Materials and Methods Dogs diagnosed with a solitary liver mass by ultrasound and/or CT, with surgical or necropsy confirmation within 1 month of imaging. Ultrasound reports were reviewed for mass location. CT scans were reviewed by two radiologists and mass location was determined by consensus agreement. Sensitivity and specificity were calculated for ultrasound and CT for each liver division. Results Fourteen of 71 dogs had CT only, 27 of 71 had ultrasound only and 30 of 71 had both. Location was correctly predicted in 42 of 57 dogs (74%) by ultrasound and in 37 of 44 dogs (84%) by CT. Both CT and ultrasound had high specificity for localising masses in all divisions. Sensitivity varied among divisions and was highest for left division masses. Clinical Significance The results suggest that either imaging modality is appropriate for presurgical planning. Prospective studies are recommended to help identify additional factors that may aid in determination of hepatic mass location.

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“…Due to the risk of hemorrhage associated with resection of large hepatic masses in dogs and variability of patient prognosis depending on location of the mass, preoperative understanding of liver mass location is crucial for determining whether a surgical solution is appropriate and to estimate intraoperative complications . It is particularly important to be able to differentiate left from central divisional masses because the former are often resectable regardless of size, while the latter can be difficult to resect without significant hemorrhage …”

Section: Introductionmentioning

confidence: 99%

Ability of positive and negative contrast computed tomographic peritoneography to delineate canine liver lobe fissures

et al. 2019

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Objective To determine the efficacy of contrast peritoneography in delineating liver lobe fissures by using computed tomography (CT). Study design Prospective cross‐sectional study. Animals Canine cadavers (n = 10). Methods An abdominal CT image of each cadaver was obtained under three conditions: without peritoneal contrast (precontrast), after insufflation of the peritoneal cavity with CO2 (negative contrast), and after intraperitoneal administration of iohexol (positive contrast). Images were reconstructed in three planes. Three reviewers independently scored each plane/contrast combination. Observers measured the length of each fissure in each plane. The measurable length of fissures was compared between techniques but was not compared with the actual length on cadavers. Results When assessment of all fissures was combined, measurements were obtained in 96 to 108 of 120 (80%‐90%) positive contrast studies, 56 to 96 of 120 (47%‐80%) negative contrast studies, and 12 to 32 of 120 (10%‐27%) precontrast CT images. All observers measured fissures in all planes that were approximately two times longer on positive compared with negative contrast studies and two times longer on negative contrast studies compared with CT images without contrast. Measurable fissure lengths were greater on positive contrast CT images (P < .0001) than on other CT images. Conclusion Positive contrast CT peritoneography improved the delineation of hepatic interlobar fissures in normal canine cadavers. Clinical significance These results justify further studies to determine the ability to locate large hepatic masses in dogs with positive CT. Positive contrast CT peritoneography may assist treatment planning in dogs with large hepatic tumors.

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Complications of Hepatic Surgery in Companion Animals

Cited by 21 publications

References 22 publications

Diagnostic Accuracy of Ultrasound to Predict the Location of Solitary Hepatic Masses in Dogs

Diagnostic Accuracy of Ultrasound to Predict the Location of Solitary Hepatic Masses in Dogs

Ultrasonographic and CT accuracy in localising surgical‐ or necropsy‐ confirmed solitary hepatic masses in dogs

Ability of positive and negative contrast computed tomographic peritoneography to delineate canine liver lobe fissures

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