@article{chanoit_pell_bolotin_buckner_williams_crenshaw_2019, title={Retraction mechanics of Finochietto-style self-retaining thoracic retractors}, volume={18}, ISSN={["1475-925X"]}, DOI={10.1186/s12938-019-0664-z}, abstractNote={Analyze the mechanics of Finochietto-style retractors, including the responses of thoracic tissues during thoracotomy, with an emphasis on tissue trauma and means for its reduction. Mechanical analyses of the retractor were performed, including analysis of deformation under load and kinematics of the crank mechanism. Thoracotomies in a porcine model were performed in anesthetized animals (7) and fresh cadavers (17) using an instrumented retractor. Mechanical analyses revealed that arm motion is a non-linear function of handle rotation, that deformation of the retractor under load concentrates force at one edge of the retractor blade, and that the retractor behaves like a spring, deforming under the load of retraction and continuing to force open the incision long after crank rotation stops. Experimental thoracotomies included retractions ranging from 50 to 112 mm over 30 to 370 s, generating maximum forces of 118 to 470 N (12–50 kgf). Tissue ruptures occurred in 12 of the 24 retractions. These ruptures all occurred at retraction distances wider than 30 mm and at forces greater than 122.5 N. Significant tissue ruptures were observed for nearly all retractions at higher retraction rates (exceeding ½ rotation of the crank per 10 s). The Finochietto-style retractor can generate large forces and some aspects of its design increase the probability of tissue trauma.}, journal={BIOMEDICAL ENGINEERING ONLINE}, author={Chanoit, Guillaume and Pell, Charles A. and Bolotin, Gil and Buckner, Gregory D. and Williams, Jeffrey P. and Crenshaw, Hugh C.}, year={2019}, month={Apr} }
 @article{chanoit_mathews_keene_small_linder_2012, title={Surgical treatment of a pulmonary artery vascular hamartoma in a dog}, volume={240}, ISSN={0003-1488}, url={http://dx.doi.org/10.2460/javma.240.7.858}, DOI={10.2460/javma.240.7.858}, abstractNote={Abstract
Case Description—A 6-year-old Siberian Husky–mix dog was examined for episodes of collapse.
Clinical Findings—Physical examination, echocardiography, abdominal ultrasonography, ECG, and thoracic computed tomography with contrast were performed and revealed a 2.5 × 2.3 × 2.0-cm mass over the pulmonic valve leaflets, resulting in moderate pulmonic stenosis. Other abnormal findings included systemic hypertension, right bundle branch block, proteinuria, and a urinary bladder mass.
Treatment and Outcome—Pulmonary arteriotomy was performed under inflow occlusion, and the mass was resected with transesophageal echocardiographic guidance and direct visualization. Results of histologic examination of the mass revealed a vascular hamartoma. Sequential follow-up examinations and telephone contacts (at 0.5, 5, and 15 months after surgery) revealed that the patient had been free from episodes of collapse since surgery. No regrowth of the mass was noted on follow-up echocardiograms, and the pulmonic stenosis had resolved, although mild to moderate pulmonary insufficiency later developed. The bladder mass was excised 15 months after the first surgery when hematuria developed, and results of histologic examination of this mass revealed a vascular hamartoma. The dog was eventually euthanized 31 months after the initial surgery for reasons that could not be directly linked to any recurrence of the pulmonary artery mass.
Clinical Relevance—Hamartomas are benign tumors that can be located in various tissues, including large arteries. Computed tomography was helpful in predicting the resectability of the intracardiac mass in this dog. Treatment with arteriotomy under inflow occlusion and mild hypothermia resulted in a favorable outcome.}, number={7}, journal={Journal of the American Veterinary Medical Association}, publisher={American Veterinary Medical Association (AVMA)}, author={Chanoit, Guillaume and Mathews, Kyle G. and Keene, Bruce W. and Small, Merrilee T. and Linder, Keith}, year={2012}, month={Apr}, pages={858–862} }
 @article{carter_chanoit_kata_2011, title={Anaphylactoid reaction in a heartworm-infected dog undergoing lung lobectomy}, volume={238}, number={10}, journal={Journal of the American Veterinary Medical Association}, author={Carter, J. E. and Chanoit, G. and Kata, C.}, year={2011}, pages={1301–1304} }
 @article{jernigan_chanoit_veeramani_owen_hilliard_cormier_laffitte_buckner_2010, title={A laparoscopic knot-tying device for minimally invasive cardiac surgery}, volume={37}, number={3}, journal={European Journal of Cardio-Thoracic Surgery}, author={Jernigan, S. R. and Chanoit, G. and Veeramani, A. and Owen, S. B. and Hilliard, M. and Cormier, D. and Laffitte, B. and Buckner, G.}, year={2010}, pages={626–630} }
 @article{chanoit_singhani_marcellin-little_osborne_2010, title={Comparison of five radiographic views for assessment of the medial aspect of the humeral condyle in dogs with osteochondritis dissecans}, volume={71}, ISSN={["1943-5681"]}, DOI={10.2460/ajvr.71.7.780}, abstractNote={Abstract
Objective—To compare 5 radiographic views for the detection of osteochondritis dissecans (OCD) in dogs with signs of elbow joint pain.
Animals—53 dogs (100 elbow joints) with forelimb lameness and signs of elbow joint pain.
Procedures—Mediolateral (ML), flexed ML, craniocaudal (CC), craniolateral-caudomedial oblique (Cr15L-CdMO), and distomedial-proximolateral oblique (Di35M-PrLO) radiographic views of the 100 elbow joints were obtained. Four examiners graded radiographs with regard to elbow joint OCD. Joints were assessed by use of arthroscopy. Receiver operating characteristic (ROC) curves, kappa measure of agreement, and Fisher exact tests for association between median diagnostic value and actual status were computed.
Results—47 joints had an abnormal medial aspect of the humeral condyle (MAHC), and among them, 11 had OCD. The presence of fractures of the medial coronoid process was significantly and positively correlated with the presence of abnormalities of the MAHC (r = 0.40), but was negatively correlated with the presence of OCD (r = −0.32). At 95% specificity, median sensitivities to detect OCD were 57% for Cr15L-CdMO, 56% for CC, 10% for flexed ML, 7% for ML, and 4% for Di35M-PrLO views. The areas under the ROC curves were significantly larger for the Cr15L-CdMO and CC views than for the ML, flexed ML, and Di35M-PrLO views for the detection of OCD. Only the Cr15L-CdMO and CC views allowed accurate detection of OCD.
Conclusions and Clinical Relevance—In dogs with signs of elbow joint pain, the Cr15L-CdMO view is excellent and the CC view was good for detection of OCD.}, number={7}, journal={AMERICAN JOURNAL OF VETERINARY RESEARCH}, author={Chanoit, Guillaume and Singhani, Nikita N. and Marcellin-Little, Denis J. and Osborne, Jason A.}, year={2010}, month={Jul}, pages={780–783} }
 @article{brown_chanoit_reeder_2010, title={Complex extrahepatic portocaval shunt with unusual caval features in a cat: Computed tomographic characterisation}, volume={51}, number={4}, journal={Journal of Small Animal Practice}, author={Brown, J. C. and Chanoit, G. and Reeder, J.}, year={2010}, pages={227–230} }
 @article{chanoit_bublot_viguier_2009, title={Variation in position of the medial fabella in West Highland white terriers and other dogs}, volume={50}, number={5}, journal={Journal of Small Animal Practice}, author={Chanoit, G. and Bublot, I. and Viguier, E.}, year={2009}, pages={241–245} }
 @inproceedings{sawaya_combet_chanoit_thiebault_levine_marcellin-little_2008, title={Assessment of impulse duration thresholds for electrical stimulation of muscles (chronaxy) in dogs}, volume={69}, DOI={10.2460/ajvr.69.10.1305}, abstractNote={Abstract
Objective—To determine the electrical impulse duration thresholds (chronaxy) for maximal motor contraction of various muscles without stimulation of pain fibers in dogs.
Animals—10 healthy adult Beagles.
Procedures—The dogs were used to assess the minimal intensity (rheobase) required to elicit motor contraction of 11 muscles (5 in the forelimb [supraspinatus, infraspinatus, deltoideus, lateral head of the triceps brachii, and extensor carpi radialis], 5 in the hind limb [gluteus medius, biceps femoris, semitendinosus, vastus lateralis, and tibialis cranialis], and the erector spinae). The rheobase was used to determine the chronaxy for each of the 11 muscles in the 10 dogs; chronaxy values were compared with those reported for the corresponding muscles in humans.
Results—Compared with values in humans, chronaxy values for stimulation of AA motor fibers in the biceps femoris and semitendinosus muscles and muscles of the more distal portions of limbs were lower in dogs. For the other muscles evaluated, chronaxy values did not differ between dogs and humans.
Conclusions and Clinical Relevance—Application of the dog-specific chronaxy values when performing electrical stimulation for strengthening muscles or providing pain relief is likely to minimize the pain perceived during treatment in dogs.}, number={10}, booktitle={American Journal of Veterinary Research}, author={Sawaya, S. G. and Combet, D. and Chanoit, G. and Thiebault, J. J. and Levine, D. and Marcellin-Little, D. J.}, year={2008}, pages={1305–1309} }
 @article{bean_chanoit_jernigan_bolotin_osborne_buckner_2008, title={Evaluation of a novel atrial retractor for exposure of the mitral valve in a porcine model}, volume={136}, ISSN={["1097-685X"]}, DOI={10.1016/j.jtcvs.2008.08.030}, abstractNote={<h3>Objectives</h3> To describe a novel atrial retractor and compare 2 methods of intraoperative left atrial retraction for minimally invasive mitral valve repair. <h3>Methods</h3> Left atrial retraction was performed on 5 swine cadavers to evaluate performance (percent of mitral valve annulus accessible), complications encountered, ease of use, and surgical time for the minimally invasive atrial retractor and a HeartPort atrial retractor. <h3>Results</h3> Estimated accessibilities were 93.0% (standard error=3.2) and 92.7% (standard error=3.3) for the HeartPort and minimally invasive atrial retractor retractors, respectively, with a difference of 0.3% (standard error=2.2%, <i>P</i> = .8832, <i>df</i> = 34). Tissue damage occurred in 1 case for the minimally invasive atrial retractor and 2 cases for the HeartPort retractor. The mean surgical times for retractor placement and mitral valve annulus exposure were 107.4 and 39.2 seconds for the HeartPort and minimally invasive atrial retractor retractors, respectively, with a difference of 68.2 seconds (<i>P</i> = .0092, <i>df</i> = 4). <h3>Conclusions</h3> The minimally invasive atrial retractor is a suitable alternative for atrial retraction compared with standard techniques of retraction. It provides comparable exposure of the mitral valve annulus, is less time consuming to place, provides subjectively more working volume within the left atrium, and has the advantage of minimal atriotomy incision length and customizable retraction.}, number={6}, journal={JOURNAL OF THORACIC AND CARDIOVASCULAR SURGERY}, author={Bean, Eric and Chanoit, Guillaume and Jernigan, Shaphan and Bolotin, Gil and Osborne, Jason and Buckner, Gregory}, year={2008}, month={Dec}, pages={1492–1495} }