Laparoscopic versus Open Ovariectomy in Bitches: Changes in Cardiorespiratory Values, Blood Parameters, and Sevoflurane Requirements Associated with the Surgical Technique

Abstract

The aim of this study was to examine the cardiorespiratory and blood changes associated with pneumoperitoneum (PNP) in laparoscopic ovariectomy (LAP Ove), as well as sevoflurane requirements, comparing them to those determined in open surgery (LPT Ove). The study was performed in 16 bitches submitted to LAP or LPT Ove. The cardiorespiratory and end-tidal sevoflurane concentration values were recorded as follows: at the beginning of surgery (T1), after the right ovary resection (T2), after the left ovary resection (T3), and after surgical closure (T4). Blood samples were taken before and after PNP. Among the cardiorespiratory parameters, no differences were observed in the values of end-tidal CO2, minute volume, and heart rate. In the LAP Ove group, a significant increase in inspiratory pressures and a decreased compliance were identified at T2 and T3. Significant higher arterial pressure values were observed in both groups at T2 and T3, with this increase especially marked at T2 in the LPT Ove group. Sevoflurane requirements were significantly higher in the LPT group during ovarian resection. Finally, in terms of the hematochemical parameters, statistical differences were recorded between pre- and post-operative assessments, but not between both surgical groups. The pathophysiological effects associated with PNP seemed to be transient and well-tolerated by healthy dogs.

Postoperative Analgesic Effect of Bilateral Quadratus Lumborum Block (QLB) for Canine Laparoscopic Ovariectomy: Comparison of Two Concentrations of Ropivacaine

“…Laparoscopic ovariectomy (LO) is currently considered the gold standard for neutering female dogs [1] thanks to the advantages over the traditional laparotomic technique, such as reduced surgical trauma, lower perioperative pain, and decreased hospitalization times [2][3][4]. In the absence of complications, dogs have been discharged between 8 and 12 h after surgery [5].…”

Serial paired arterial and jugular venous point‐of‐care values in dogs undergoing manual basic life support

“…20 The prolonged general anesthesia, laparoscopic interventions before CPA, and short CPR duration likely contributed to alterations in baseline POC variables, which could have masked more extensive blood gas, acid-base, and electrolyte changes during CPR. [52][53][54][55] Despite its prospective nature and homogenous CPR patient population, the current study has several limitations. Enrolled dogs were healthy and anesthetized for an extended period of time before induction of CPA; therefore, the study results cannot be directly compared…”