Brazilian journal of anesthesiology (Elsevier) · 2026
Clinical and sensory evaluation of an instant carbohydrate beverage as a clear liquid in the preoperative period: randomized controlled trial.
СтатьяРандомизированное исследованиеНазвание и аннотация: Перевод в очереди
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Zanin Joice Carla Dorneles, Colet Rosicler, Peruzzolo Marcieli, Backes Geciane Toniazzo, Zeni Jamile, Hsu André Keng Wei
Аннотация
OBJECTIVE: Preoperative carbohydrate-containing clear liquids are recommended to reduce discomfort associated with prolonged fasting, yet their implementation remains limited in many Brazilian hospitals. This study evaluated the sensory acceptance and clinical effects of an instant coffee-flavored carbohydrate beverage administered during the preoperative period.
METHODS: A randomized controlled trial was conducted between March 2022 and December 2024 at a tertiary hospital in Brazil. Adult patients scheduled for elective surgery under general anesthesia were allocated to a test group (200 mL carbohydrate beverage up to two hours before anesthesia induction) or a control group (conventional fasting of approximately 8 hours). Clinical assessments were performed approximately two hours before anesthesia induction. The primary outcome was satiety, assessed using a 0‒10 Numerical Rating Scale (NRS). Secondary outcomes included thirst and anxiety. In the test group, palatability, satisfaction, and perceived anxiety control were also evaluated.
RESULTS: The beverage demonstrated good sensory acceptance and was well tolerated. Compared with conventional fasting, participants who received the beverage reported significantly higher satiety scores and lower levels of thirst and anxiety. Among participants with higher baseline anxiety (≥ 7), exploratory descriptive findings suggested favorable perceived anxiety control following beverage intake. No adverse events were observed during the study period; however, the study was not powered to detect rare adverse events.
CONCLUSION: Administration of the beverage up to two hours before anesthesia was associated with reduced preoperative discomfort and high patient acceptance. Larger studies are needed to further evaluate clinical outcomes and safety.
METHODS: A randomized controlled trial was conducted between March 2022 and December 2024 at a tertiary hospital in Brazil. Adult patients scheduled for elective surgery under general anesthesia were allocated to a test group (200 mL carbohydrate beverage up to two hours before anesthesia induction) or a control group (conventional fasting of approximately 8 hours). Clinical assessments were performed approximately two hours before anesthesia induction. The primary outcome was satiety, assessed using a 0‒10 Numerical Rating Scale (NRS). Secondary outcomes included thirst and anxiety. In the test group, palatability, satisfaction, and perceived anxiety control were also evaluated.
RESULTS: The beverage demonstrated good sensory acceptance and was well tolerated. Compared with conventional fasting, participants who received the beverage reported significantly higher satiety scores and lower levels of thirst and anxiety. Among participants with higher baseline anxiety (≥ 7), exploratory descriptive findings suggested favorable perceived anxiety control following beverage intake. No adverse events were observed during the study period; however, the study was not powered to detect rare adverse events.
CONCLUSION: Administration of the beverage up to two hours before anesthesia was associated with reduced preoperative discomfort and high patient acceptance. Larger studies are needed to further evaluate clinical outcomes and safety.