Comparing the Use of Transverse Abdominis Plane Block and Splash Block for Postoperative Pain Control in Dogs Undergoing Mastectomy—A Blinded Randomized Prospective Clinical Study

To compare the use of postoperative analgesia for mastectomy, 44 dogs were randomly allocated to either the Splash treatment group (group A) or the Transverse Abdominis Plane block treatment group (TAP, group B). Following intramuscular (IM) premedication with pethidine (4 mg kg<sup>−1</sup...

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Main Authors: Daniele Corona, Simone K. Ringer, Stefanie Keller, Iris M. Reichler, Regula Bettschart-Wolfensberger, Annette P. N. Kutter
Format: Article
Language:English
Published: MDPI AG 2025-05-01
Series:Animals
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Online Access:https://www.mdpi.com/2076-2615/15/9/1323
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author Daniele Corona
Simone K. Ringer
Stefanie Keller
Iris M. Reichler
Regula Bettschart-Wolfensberger
Annette P. N. Kutter
author_facet Daniele Corona
Simone K. Ringer
Stefanie Keller
Iris M. Reichler
Regula Bettschart-Wolfensberger
Annette P. N. Kutter
author_sort Daniele Corona
collection DOAJ
description To compare the use of postoperative analgesia for mastectomy, 44 dogs were randomly allocated to either the Splash treatment group (group A) or the Transverse Abdominis Plane block treatment group (TAP, group B). Following intramuscular (IM) premedication with pethidine (4 mg kg<sup>−1</sup>) and acepromazine (0.01 mg kg<sup>−1</sup>), anesthesia was induced with intravenous (IV) propofol and maintained with isoflurane by an anesthetist (DC) who was unaware of the treatment. In group A, ropivacaine 0.5% (2 mg kg<sup>−1</sup>) was administered prior to surgical wound closure. In group B, ropivacaine 0.5% (0.8–1 mg kg<sup>−1</sup> per point) was administered by ultrasound-guided TAP block with two injection points per treated body side. At the end of the surgery, all dogs received pethidine (4 mg kg<sup>−1</sup> IM), meloxicam (0.2 mg kg<sup>−1</sup> IV), and acepromazine (0.005 mg kg<sup>−1</sup> IV). The animals’ pain was assessed by the anesthetist, who remained unaware of the treatment type used, via the Short Form of the Glasgow Composite Pain Scale. When the pain scores were ≥6, methadone (0.2 mg kg<sup>−1</sup> IV) and gabapentin (10 mg kg<sup>−1</sup> per oral) were started. When the pain score remained ≥ 6, ketamine (1 mg kg<sup>−1</sup> subcutaneously) was administered. The dogs in the TAP block group had lower postoperative pain scores 3–12 h after anesthesia administration was terminated and required significantly less rescue analgesia.
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spelling doaj-art-25251e6ac058415fb90d5b364e7119122025-08-20T03:52:57ZengMDPI AGAnimals2076-26152025-05-01159132310.3390/ani15091323Comparing the Use of Transverse Abdominis Plane Block and Splash Block for Postoperative Pain Control in Dogs Undergoing Mastectomy—A Blinded Randomized Prospective Clinical StudyDaniele Corona0Simone K. Ringer1Stefanie Keller2Iris M. Reichler3Regula Bettschart-Wolfensberger4Annette P. N. Kutter5Department of Clinical Diagnostics and Services, Section of Anaesthesiology, Vetsuisse Faculty, University of Zurich, 8057 Zurich, SwitzerlandDepartment of Clinical Diagnostics and Services, Section of Anaesthesiology, Vetsuisse Faculty, University of Zurich, 8057 Zurich, SwitzerlandClinic for Animal Reproduction Medicine, Vetsuisse Faculty, University of Zurich, 8057 Zurich, SwitzerlandClinic for Animal Reproduction Medicine, Vetsuisse Faculty, University of Zurich, 8057 Zurich, SwitzerlandDepartment of Clinical Diagnostics and Services, Section of Anaesthesiology, Vetsuisse Faculty, University of Zurich, 8057 Zurich, SwitzerlandDepartment of Clinical Diagnostics and Services, Section of Anaesthesiology, Vetsuisse Faculty, University of Zurich, 8057 Zurich, SwitzerlandTo compare the use of postoperative analgesia for mastectomy, 44 dogs were randomly allocated to either the Splash treatment group (group A) or the Transverse Abdominis Plane block treatment group (TAP, group B). Following intramuscular (IM) premedication with pethidine (4 mg kg<sup>−1</sup>) and acepromazine (0.01 mg kg<sup>−1</sup>), anesthesia was induced with intravenous (IV) propofol and maintained with isoflurane by an anesthetist (DC) who was unaware of the treatment. In group A, ropivacaine 0.5% (2 mg kg<sup>−1</sup>) was administered prior to surgical wound closure. In group B, ropivacaine 0.5% (0.8–1 mg kg<sup>−1</sup> per point) was administered by ultrasound-guided TAP block with two injection points per treated body side. At the end of the surgery, all dogs received pethidine (4 mg kg<sup>−1</sup> IM), meloxicam (0.2 mg kg<sup>−1</sup> IV), and acepromazine (0.005 mg kg<sup>−1</sup> IV). The animals’ pain was assessed by the anesthetist, who remained unaware of the treatment type used, via the Short Form of the Glasgow Composite Pain Scale. When the pain scores were ≥6, methadone (0.2 mg kg<sup>−1</sup> IV) and gabapentin (10 mg kg<sup>−1</sup> per oral) were started. When the pain score remained ≥ 6, ketamine (1 mg kg<sup>−1</sup> subcutaneously) was administered. The dogs in the TAP block group had lower postoperative pain scores 3–12 h after anesthesia administration was terminated and required significantly less rescue analgesia.https://www.mdpi.com/2076-2615/15/9/1323neoplasiamammary tumorcaninelocoregional anesthesiapain score
spellingShingle Daniele Corona
Simone K. Ringer
Stefanie Keller
Iris M. Reichler
Regula Bettschart-Wolfensberger
Annette P. N. Kutter
Comparing the Use of Transverse Abdominis Plane Block and Splash Block for Postoperative Pain Control in Dogs Undergoing Mastectomy—A Blinded Randomized Prospective Clinical Study
Animals
neoplasia
mammary tumor
canine
locoregional anesthesia
pain score
title Comparing the Use of Transverse Abdominis Plane Block and Splash Block for Postoperative Pain Control in Dogs Undergoing Mastectomy—A Blinded Randomized Prospective Clinical Study
title_full Comparing the Use of Transverse Abdominis Plane Block and Splash Block for Postoperative Pain Control in Dogs Undergoing Mastectomy—A Blinded Randomized Prospective Clinical Study
title_fullStr Comparing the Use of Transverse Abdominis Plane Block and Splash Block for Postoperative Pain Control in Dogs Undergoing Mastectomy—A Blinded Randomized Prospective Clinical Study
title_full_unstemmed Comparing the Use of Transverse Abdominis Plane Block and Splash Block for Postoperative Pain Control in Dogs Undergoing Mastectomy—A Blinded Randomized Prospective Clinical Study
title_short Comparing the Use of Transverse Abdominis Plane Block and Splash Block for Postoperative Pain Control in Dogs Undergoing Mastectomy—A Blinded Randomized Prospective Clinical Study
title_sort comparing the use of transverse abdominis plane block and splash block for postoperative pain control in dogs undergoing mastectomy a blinded randomized prospective clinical study
topic neoplasia
mammary tumor
canine
locoregional anesthesia
pain score
url https://www.mdpi.com/2076-2615/15/9/1323
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