Ultrasound-guided rectus sheath injection in pig cadavers – a pilot study

Calice, Ivana; Kau, Silvio; Knecht, Charles D.; Trujanovic, Robert; Auer, Ulrike

doi:10.1016/j.vaa.2021.09.016

Cited by 2 publications

(2 citation statements)

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“…Nevertheless, under direct visualization, the probability of accidental organ puncture is low. There is a study comparing blind versus US-guided locoregional anaesthesia in cows that reported organ (renal and spleen) contamination with contrast media in the blind technique [16]. For this reason, and as previously mentioned, the authors prefer the US-guided over the blind technique [17].…”

Section: Discussionmentioning

confidence: 99%

“…Interfascial blocks to provide abdominal wall analgesia have been described in cadaveric studies in horses [15]. The rectus sheath block has been described in cadaveric studies in dogs, pigs, and calves with promising results [7,[16][17][18]. A study evaluated a two-point rectus sheath block in the middle point between the xyphoid process and the umbilicus.…”

Section: Introductionmentioning

confidence: 99%

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Assessment of an Ultrasound-Guided Rectus Sheath Block in Foals: A Cadaveric Study

Gutiérrez Bautista,

Söbbeler,

Koch

et al. 2023

Animals

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In neonatal equines, pathologies involving umbilical structures are an important cause of morbidity, and surgical removal of urachal remnants is a common procedure in clinical practice. Surgery involving the ventral abdominal wall can cause substantial pain, leading to complications and prolonged recovery. The objectives of this study were to describe a two-point bilateral ultrasound-guided rectus sheath block at the level of the umbilicus and to evaluate the extent of dye distribution in foal cadavers. Ten foal cadavers were included in the study, in which a bilateral two-point ultrasound-guided rectus sheath block was performed—one injection 5 cm cranially and a second one 5 cm caudally to the umbilicus. The injectate consisted of a mixture of iodinated contrast medium and blue dye at a volume of 0.25 mL kg−1 per injection point (total 1 mL kg−1). After the injection, computer tomography and subsequent dissection of the ventral abdominal wall were performed. The extension of the contrast medium, the number of stained nerves, and contamination of the abdominal cavity were evaluated. The cranio-caudal extension of the contrast ranged from 0.8 to 1.4 cm per milliliter of injectate. The most commonly stained ventral branches of spinal nerves were thoracic (Th) nerves 16, 17, and 18 (95%, 85%, and 80% of the nerves, respectively). Abdominal contamination was found in four animals. The results suggest that the block could provide periumbilical analgesia. Further studies with different volumes of injectate and living animals are warranted.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Assessment of an Ultrasound-Guided Rectus Sheath Block in Foals: A Cadaveric Study

Gutiérrez Bautista,

Söbbeler,

Koch

et al. 2023

Animals

View full text Add to dashboard Cite

show abstract

Assessment of an Ultrasound-Guided Rectus Sheath Block in Foals: A Cadaveric Study

Bautista,

Söbbeler,

Koch

et al. 2023

Preprint

View full text Add to dashboard Cite

In neonatal equines, pathologies involving umbilical structures are an important cause of morbidity, and surgical removal of urachal remnants is a common procedure in clinical practice. Surgery involving the ventral abdominal wall can cause substantial pain, leading to complications and prolonged recovery. The objectives of this study were to describe a two-point bilateral ultrasound-guided rectus sheath block at the level of the umbilicus and to evaluate the extent of dye distribution in foal cadavers. Ten foal cadavers were included in the study, in which a bilateral two-point ultrasound-guided rectus sheath block was performed—one injection cranially and a second one caudally to the umbilicus. The injectate consisted of a mixture of iodinated contrast medium and blue dye at a volume of 0.25 mL kg-1 per injection point (total 1 mL kg-1). After the injection, computer tomography and subsequent dissection of the ventral abdominal wall were performed. The extension of the contrast medium, the number of stained nerves, and contamination of the abdominal cavity were evaluated. The cranio-caudal extension of the contrast ranged from 0.8 to 1.4 centimeters per milliliter of injectate. The most commonly stained ventral branches of spinal nerves were thoracic (Th) nerves 16, 17, and 18 (95%, 85%, and 80% of the nerves, respectively). Abdominal contamination was found in 4 animals. The results suggest that the block could provide periumbilical analgesia. Further studies with different volumes of injectate and living animals are warranted.

show abstract

Ultrasound-guided rectus sheath injection in pig cadavers – a pilot study

Cited by 2 publications

References 0 publications

Assessment of an Ultrasound-Guided Rectus Sheath Block in Foals: A Cadaveric Study

Assessment of an Ultrasound-Guided Rectus Sheath Block in Foals: A Cadaveric Study

Assessment of an Ultrasound-Guided Rectus Sheath Block in Foals: A Cadaveric Study

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