{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,27]],"date-time":"2026-01-27T13:56:16Z","timestamp":1769522176440,"version":"3.49.0"},"reference-count":27,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2025,2,20]],"date-time":"2025-02-20T00:00:00Z","timestamp":1740009600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"UIDB\/00772\/2020"},{"name":"LA\/P\/0059\/2020"},{"name":"Scientific Employment Stimulus\u2014Institutional Call"},{"name":"Portuguese Foundation for Science and Technology (FCT)"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Animals"],"abstract":"<jats:p>Objective: Investigate the effect of bilateral ultrasound-guided quadratus lumborum block (QLB) in the need for additional opioid administration in response to intraoperative nociception during ovariectomy in cats. Methods: Thirty-six feral cats were randomly allocated to group control (C) or group QLB with 0.4 mL kg\u22121 of 0.25% bupivacaine per hemiabdomen. Hemodynamic data were collected at five intraoperative time points. A 20% increase in pulse rate or respiratory rate was treated with fentanyl. Results: Pulse rate and respiratory rate were higher in the C group compared to the QLB group during ovarian manipulation. No differences in systolic and mean arterial pressure and hypotension were comparable in both groups. The QLB group required less administration of intraoperative fentanyl than the C group at 4\/16 and 10\/16, respectively (p &lt; 0.05). Conclusions: The bilateral QLB with bupivacaine led to a reduction in opioid consumption in feral cats undergoing elective ovariectomy.<\/jats:p>","DOI":"10.3390\/ani15050618","type":"journal-article","created":{"date-parts":[[2025,2,20]],"date-time":"2025-02-20T06:10:21Z","timestamp":1740031821000},"page":"618","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Intraoperative Effect of a Bilateral Ultrasound-Guided Quadratus Lumborum Block in Cats Undergoing Ovariectomy"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7236-9964","authenticated-orcid":false,"given":"Jos\u00e9 Diogo","family":"Dos-Santos","sequence":"first","affiliation":[{"name":"Research in Veterinary Medicine (I-MVET), Faculty of Veterinary Medicine, Lus\u00f3fona University\u2014Lisbon University Center, 1749-024 Lisbon, Portugal"},{"name":"Veterinary and Animal Science Research Centre (CECAV), University of Tr\u00e1s-os-Montes e Alto Douro, (UTAD), 5000-801 Vila Real, Portugal"},{"name":"Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisbon, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0464-7771","authenticated-orcid":false,"given":"M\u00e1rio","family":"Ginja","sequence":"additional","affiliation":[{"name":"Veterinary and Animal Science Research Centre (CECAV), University of Tr\u00e1s-os-Montes e Alto Douro, (UTAD), 5000-801 Vila Real, Portugal"},{"name":"Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisbon, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6703-4588","authenticated-orcid":false,"given":"Jo\u00e3o","family":"Martins","sequence":"additional","affiliation":[{"name":"Research in Veterinary Medicine (I-MVET), Faculty of Veterinary Medicine, Lus\u00f3fona University\u2014Lisbon University Center, 1749-024 Lisbon, Portugal"},{"name":"Veterinary and Animal Science Research Centre (CECAV), University of Tr\u00e1s-os-Montes e Alto Douro, (UTAD), 5000-801 Vila Real, Portugal"},{"name":"Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisbon, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9842-1759","authenticated-orcid":false,"given":"Sofia","family":"Alves-Pimenta","sequence":"additional","affiliation":[{"name":"Veterinary and Animal Science Research Centre (CECAV), University of Tr\u00e1s-os-Montes e Alto Douro, (UTAD), 5000-801 Vila Real, Portugal"},{"name":"Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisbon, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8446-0818","authenticated-orcid":false,"given":"L\u00e9nio","family":"Ribeiro","sequence":"additional","affiliation":[{"name":"Research in Veterinary Medicine (I-MVET), Faculty of Veterinary Medicine, Lus\u00f3fona University\u2014Lisbon University Center, 1749-024 Lisbon, Portugal"},{"name":"Research Center for Biosciences and Health Technologies (CBIOS), Universidade Lus\u00f3fona de Humanidades e Tecnologias, 1749-024 Lisbon, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0901-7269","authenticated-orcid":false,"given":"Pablo E.","family":"Otero","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology and Pain Management, Facultad de Ciencias Veterinarias, Universidad de Buenos Aires, Buenos Aires C1427CWN CABA, Argentina"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4879-8624","authenticated-orcid":false,"given":"Bruno","family":"Cola\u00e7o","sequence":"additional","affiliation":[{"name":"Veterinary and Animal Science Research Centre (CECAV), University of Tr\u00e1s-os-Montes e Alto Douro, (UTAD), 5000-801 Vila Real, Portugal"},{"name":"Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisbon, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2025,2,20]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"377","DOI":"10.1111\/j.1748-5827.2012.01243.x","article-title":"Pharmacological options for intra-operative and early postoperative analgesia: An update","volume":"53","author":"Gurney","year":"2012","journal-title":"J. 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