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Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy01:26

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Sigmoidoscopy and laparoscopy are distinct medical procedures that enable physicians to internally inspect different parts of the GI tract. Although they serve different purposes, each is essential for diagnosing and, in some cases, treating various medical conditions.
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Anesthesia is a medical procedure that uses drugs for CNS suppression to enable painless surgeries and procedures. The selection of anesthetics is influenced by their pharmacokinetic properties, side effects, and patient characteristics. Various types of anesthesia include general, local, regional, spinal, and inhalational.
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Spinal anesthetics are given during lower abdomen and limb surgeries to block sensory and motor neurons. They are administered in the mid to low lumbar regions, primarily acting on the cauda equina's nerve roots. The blockade level depends on the local anesthetic (LA) concentration. Usually, low LA concentrations are sufficient to block sensory fibers, while only high LA concentrations block motor fibers. Other factors like injection volume and speed, the patient's posture, and the drug...
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Minimally Invasive Colorectal Surgery Under General Versus Neuraxial Anesthesia: A Retrospective

Carlo Ferrari1, Jacopo Crippa1, Davide Vailati2

  • 1Division of General Surgery, Vizzolo Predabissi Hospital, ASST Melegnano e Martesana, via Pandina 1, Vizzolo Predabissi, 20077 Milan, Italy.

Journal of Clinical Medicine
|November 13, 2025
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Summary

Neuraxial anesthesia offers a viable alternative to general anesthesia for minimally invasive colorectal surgery. This approach requires longer preparation but results in shorter operative times without increasing complications.

Keywords:
colorectal cancercolorectal surgerycombined spinal–epiduraldiverticular diseaselaparoscopic surgeryminimally-invasive surgeryneuraxial anesthesia

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Area of Science:

  • Anesthesiology
  • Colorectal Surgery
  • Minimally Invasive Surgery

Background:

  • Neuraxial anesthesia (combined spinal-epidural) is a potential alternative for minimally invasive colorectal surgery.
  • Existing evidence is limited to case series, lacking cohort studies.

Purpose of the Study:

  • To compare neuraxial anesthesia with general anesthesia for minimally invasive colorectal surgery.
  • To evaluate anesthesiologic and surgical outcomes, including complications.

Main Methods:

  • Retrospective analysis of patients undergoing minimally invasive colorectal surgery (Oct 2022-Oct 2024).
  • Comparison between neuraxial and general anesthesia groups using propensity score matching.
  • Assessment of preparation time, operative duration, ICU admission, hospital stay, and 90-day postoperative complications.

Main Results:

  • Neuraxial anesthesia group had longer preparation time (42.5 vs. 30 min) but shorter operative time (181 vs. 231 min) post-matching.
  • No conversions from neuraxial to general anesthesia were required.
  • Length of stay and complication rates (including anastomotic leak and readmission) were comparable between groups.

Conclusions:

  • Neuraxial anesthesia may be a safe and effective alternative for minimally invasive colorectal surgery.
  • It is associated with longer anesthetic preparation but shorter operative times.
  • Further research is warranted to explore its application in colorectal procedures.