Köpeklerde Nörolojik Cerrahi Sırasında Bispektral İndeks (BİS) Monitörizasyonu: Altı Olguluk Pilot Çalışma
5. Uluslar ar ası Vet er i ner Hek i mli ği Öğr enci ler i Bi li msel A r aşt ır ma Kongr esi, İstanbul, Türkiye, 1 - 03 Nisan 2026, cilt.1, sa.1, ss.50-52, (Özet Bildiri)
- Yayın Türü: Bildiri / Özet Bildiri
- Cilt numarası: 1
- Basıldığı Şehir: İstanbul
- Basıldığı Ülke: Türkiye
- Sayfa Sayıları: ss.50-52
- İstanbul Üniversitesi-Cerrahpaşa Adresli: Evet
Özet
Purpose: Neurological surgical procedures are generally considered major surgical
operations with prolonged operation times, and maintaining a stable depth of
anesthesia within safe ranges is of great importance for patient safety. In clinical
practice, the depth of anesthesia is frequently assessed using physical examination
findings and hemodynamic parameters; however, these methods can remain subjective,
especially in major surgical procedures. Therefore, objective monitoring methods are
needed to track the depth of anesthesia. The aim of this study is to evaluate the
applicability of Bispectral Index Monitoring (BIS) for monitoring the depth of
anesthesia in dogs undergoing neurological surgery.Material-Method: In this pilot study, a total of six dogs undergoing neurological
surgery were evaluated. The cases were divided into two groups according to the
anesthesia protocol applied. In the first group, anesthesia induction was achieved using
a combination of butorphanol and propofol (n=3), and in the second group, a
combination of butorphanol, medetomidine HCl, and ketamine HCl (n=3).
Endotracheal intubation was performed in all cases, and anesthesia maintenance was
carried out with isoflurane in both groups. Bispectral index monitoring (BIS) was
applied to all cases during anesthesia. BIS sensors were placed in the frontal region,
and physical examination findings reflecting the depth of anesthesia were evaluated
along with BIS values at specified intraoperative time points. Respiratory and
hemodynamic parameters were monitored and recorded using a conventional bedside
monitor. The obtained data were evaluated using descriptive statistics.Results: In all cases, the applicability of BIS during the intraoperative period and the
continuity of uninterrupted data output were observed. In both anesthesia treatments, it
was determined that BIS values generally remained within the range recommended for
surgical anesthesia throughout the operation.Conclusion: This pilot study demonstrates that bispectral index monitoring is a viable
method for objectively monitoring the depth of anesthesia in dogs undergoing
neurological surgery.Keywords: Bispectral index monitoring, neurological surgery, dog, depth of
anesthesia, monitoring