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Comparison of Low and Normal Flow Anesthesia in Robotic Assisted Radical Prostatectomy

The Effect of Low-flow and Normal-flow Desflurane Anesthesia on Respiratory Parameters in Robotic-assisted Radical Prostatectomy

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05517551
Enrollment
68
Registered
2022-08-26
Start date
2022-08-24
Completion date
2023-11-30
Last updated
2026-05-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Low Flow Anesthesia, Normal Flow Anesthesia, Robotic Surgery

Brief summary

Robot-assisted laparoscopic radical prostatectomy has gained increasing popularity compared to open radical prostatectomy with its advantages such as low blood loss, reduced blood transfusion rate, low complication rate, and shortened hospital stay. Since robot-assisted laparoscopic radical prostatectomy should be performed in the limited retroperitoneal area, insufflation of the abdomen with carbon dioxide (CO2) (pneumoperitoneum) and steep Trendelenburg position are required to provide better surgical vision. Low-flow anesthesia warms and moistens the inhaled gases, creating a more physiological breathing atmosphere during anesthesia. In addition, it provides cost advantage by reducing inhalation agent consumption and reduces atmospheric pollution. Studies show that long-term minimal flow anesthesia is safe and advantageous for non-laparoscopic surgery. The aim of this study is to compare low-flow (1L/min) with normal flow (3lt/min) desflurane anesthesia in terms of hemodynamic and respiratory parameters, inhalation agent consumption and soda lime consumption for robotic assisted laparoscopic radical prostatectomy surgery. The secondary aim of the study is to compare the effects of low-flow and normal-flow anesthesia in the steep trendelenburg position (45°) used for robotically assisted laparoscopic radical prostatectomy.

Interventions

Patients who will undergo robotic-assisted laparoscopic prostatectomy surgery

Sponsors

Ankara City Hospital Bilkent
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
MALE
Age
18 Years to 80 Years
Healthy volunteers
Yes

Inclusion criteria

\- ASA I-II-III risk group

Exclusion criteria

* ASA IV, V, * concomitant serious cardiac, respiratory, hepatic, renal disturbance, * mental status disorder and hearing problem, * anxiety and depression and/or other psychiatric disorders, * patient's refusal

Design outcomes

Primary

MeasureTime frameDescription
inspiratory O₂ concentrationfrom beginning of anesthesia induction to the end of anesthesia (during periopertaive period)inspiratory O₂ concentration is measured from anesthesia machine monitor
partial oxygen pressurefrom beginning of anesthesia induction to the end of anesthesia (during periopertaive period)PO2 from blood gas analysis

Secondary

MeasureTime frameDescription
desflurane consumptionperioperativedesflurane consumption at the end of anesthesia is measured from anesthesia machine monitor
changes in liver and kidney function tests from the preoperative values to 48 hours postoperativeduring operation and 48 hours postoperativeto determine the changes in serum aspartate aminotransferase (AST), alanine aminotransferase (ALT), blood urea nitrogen (BUN), and creatinine from the preoperative values to 48 hours postoperative

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 29, 2026