Study finds lower inflammatory stress with laparoscopic dog OVE

A new prospective, blinded, randomized clinical trial in Veterinary Surgery found that laparoscopic elective ovariectomy in anestrus dogs produced a milder, shorter-lived inflammatory and oxidative stress response than open surgery. The study, published online January 3, 2026, enrolled 26 healthy bitches, with 13 assigned to laparoscopy and 13 to open ovariectomy. Researchers tracked interleukin-6, paraoxonase-1, reactive oxygen metabolites, and biological antioxidant potential before surgery, then 2 hours, 24 hours, and 7 days afterward. The laparoscopic group showed a transient early inflammatory signal, while the open-surgery group had higher oxidative stress markers that persisted through day 7. (pubmed.ncbi.nlm.nih.gov)

Why it matters: For veterinary professionals, the findings add biomarker-level evidence to the broader case for minimally invasive spay techniques. Prior canine studies have also linked laparoscopy with lower cortisol, less oxidative stress, and reduced postoperative inflammatory changes compared with open approaches, although pneumoperitoneum can introduce its own physiologic effects. The new paper is notable because it used canine-specific inflammatory and validated oxidative stress markers in a randomized design focused on elective ovariectomy, suggesting that reduced tissue trauma may translate into a more favorable perioperative stress profile. That could matter for pain management discussions, recovery expectations, and how practices talk with pet parents about the tradeoffs of laparoscopic capability. (pubmed.ncbi.nlm.nih.gov)

What to watch: Whether larger studies connect these biomarker differences to clinical outcomes that matter most in practice, including pain scores, complication rates, recovery time, and cost-effectiveness. (pubmed.ncbi.nlm.nih.gov)