Buote et al: Laparoscopic vertical sleeve gastrectomy in felines: A cadaveric feasibility study and experimental case series in two cats
Veterinary Surgery 6, 2023

🔍 Key Findings

LVSG was feasible in 9/10 feline cadavers with successful stapled gastrectomy and minimal technical complications.
Stenosis at the incisura angularis occurred in 2/10 cadavers, associated with staple placement too close to the lesser curvature.
Leak testing was negative in 8 cadavers and both live cats, indicating effective staple sealing.
Mean stomach resection was ~28%, though less than human standards (~75–80%) for metabolic effects.
Surgery was performed safely in two live feline subjects, with no intraoperative or postoperative complications over a 6-month follow-up.
Technique refinements included orogastric tube placement and custom 3D-printed cannulas to improve staple line accuracy and avoid stenosis.
Tri-Staple purple cartridges provided graduated compression suited for feline gastric tissue thickness (~2.5 mm).
No need for staple line oversew in live cats; staple-only closure proved safe in this short-term study.

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Buote et al: Laparoscopic vertical sleeve gastrectomy in felines: A cadaveric feasibility study and experimental case series in two cats
Veterinary Surgery 6, 2023

🔍 Key Findings

LVSG was feasible in 9/10 feline cadavers with successful stapled gastrectomy and minimal technical complications.
Stenosis at the incisura angularis occurred in 2/10 cadavers, associated with staple placement too close to the lesser curvature.
Leak testing was negative in 8 cadavers and both live cats, indicating effective staple sealing.
Mean stomach resection was ~28%, though less than human standards (~75–80%) for metabolic effects.
Surgery was performed safely in two live feline subjects, with no intraoperative or postoperative complications over a 6-month follow-up.
Technique refinements included orogastric tube placement and custom 3D-printed cannulas to improve staple line accuracy and avoid stenosis.
Tri-Staple purple cartridges provided graduated compression suited for feline gastric tissue thickness (~2.5 mm).
No need for staple line oversew in live cats; staple-only closure proved safe in this short-term study.

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Multiple Choice Questions on this study

In Buote 2023 et al., on laparoscopic gastrectomy in cats, which staple type was ultimately used for live feline surgeries?

A. 60 mm blue linear staples

B. 30 mm tan staples

C. Purple Tri-Staple cartridges

D. Purple circular staples

E. Blue 45 mm reloads

Answer: Purple Tri-Staple cartridges

Explanation: Purple Tri-Staple technology staples were used in live cats for graduated compression appropriate for stomach thickness.

In Buote 2023 et al., on laparoscopic gastrectomy in cats, what was the primary purpose of the cadaveric phase of the study?

A. To assess healing time of the staple line

B. To evaluate glucose control post-surgery

C. To refine the surgical technique and stapler use

D. To determine long-term weight loss outcomes

E. To compare staple types in feline gastric wall

Answer: To refine the surgical technique and stapler use

Explanation: The cadaver study was used to develop and optimize the laparoscopic approach and stapling protocol before live trials.

In Buote 2023 et al., on laparoscopic gastrectomy in cats, what complication was **not** observed in either live patient after surgery?

A. Stenosis at the incisura angularis

B. Leakage from the staple line

C. Abdominal pain requiring rescue analgesia

D. Postoperative nausea or vomiting

E. All of the above

Answer: All of the above

Explanation: No intra- or postoperative complications were reported in the two live cats, including absence of leak, GI signs, or pain.

In Buote 2023 et al., on laparoscopic gastrectomy in cats, what percentage of stomach was resected in the cadaver model?

A. 10%

B. 20%

C. 28%

D. 50%

E. 75%

Answer: 28%

Explanation: Approximately 27.6% of the feline stomach was resected, much less than the 75–80% typically done in human bariatrics.

In Buote 2023 et al., on laparoscopic gastrectomy in cats, what technical refinement helped avoid iatrogenic stenosis at the incisura angularis?

A. Use of a linear cutting stapler with a blue cartridge

B. Oversewing the staple line with suture

C. Placement of an orogastric tube for spacing

D. Decreasing insufflation pressure to 5 mmHg

E. Removal of the spleen prior to stapling

Answer: Placement of an orogastric tube for spacing

Explanation: Using an orogastric tube guided the staple line and helped avoid narrowing near the lesser curvature, which caused stenosis in early cadavers.

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