Validation of a Mathematical Model for Ultrasound Assessment of Gastric Volume by Gastroscopic Examination

Perlas, Anahi; Mitsakakis, Nicholas; Liu, Louis; Cino, Maria; Haldipur, Nidhi; Davis, Liisa; Cubillos, Javier; Chan, Vincent

doi:10.1097/sa.0b013e31829b814e

Cited by 33 publications

(96 citation statements)

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“…Other methods such as aspiration of the volume via nasogastric tube (7) , ultrasonography (24) , videofluoroscopy (12) , and scintigraphy (13) are also considered less precise than MRI. Gastroscopy is a reliable method to assess gastric emptying but is invasive and may require sedation (25) . MRI is an excellent but an expensive tool for the study of gastric emptying.…”

Section: Discussionmentioning

confidence: 99%

GASTRIC RESIDUAL VOLUME BY MAGNETIC RESSONANCE AFTER INTAKE OF MALTODEXTRIN AND GLUTAMINE: a randomized double-blind, crossover study

Brianez

Caporossi

Moura

et al. 2014

Arq. Gastroenterol.

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ContextThe addition of glutamine in preoperative drinks may enhance the benefits of carbohydrate alone.ObjectivesTo evaluate the gastric residual volume after the intake of a beverage containing carbohydrate plus glutamine.MethodsEleven healthy volunteers (24-30 years-old) were randomized in a crossover fashion to intake 400 mL (4h before) and 200 mL (2h before) of a beverage containing either 12.5% maltodextrin (carbohydrate group) or 12.5% maltodextrin plus 15 g of glutamine (glutamine group) in two different moments 7 days apart. Magnetic ressonance was performed to measure the gastric residual volume (mL) 120 and 180 minutes after the last ingestion.ResultsGastric residual volume similar to basal condition was found after 2h and 3h of the intake of beverages. There was no difference in the mean ±SD GRV (mL) found at 120 minutes (carbohydrate group: 22.9±16.6 and glutamine group: 19.7±10.7) and at 180 minutes (carbohydrate group: 21.5±24.1 and glutamine group: 15.1±10.1) between the two drinks.ConclusionsGastric emptying is efficient, and occurs in up to two hours after the intake of a beverage containing either carbohydrate alone or carbohydrate associated with glutamine. The addition of glutamine to carbohydrate-enriched drink seems to be safe for the use up to 2h before an operation. HEADINGS - Gastric emptying. Preoperative care. Carbohydrates. Glutamine. Magnetic resonance imaging.

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Section: Discussionmentioning

confidence: 99%

GASTRIC RESIDUAL VOLUME BY MAGNETIC RESSONANCE AFTER INTAKE OF MALTODEXTRIN AND GLUTAMINE: a randomized double-blind, crossover study

Brianez

Caporossi

Moura

et al. 2014

Arq. Gastroenterol.

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“…1). 11,12,16 Thick fluid or solid content was deemed to be present if the antrum appeared distended with heterogeneous, hyperechoic, or grossly particular content or if a ''frosted glass pattern'' was present. 11,16 If clear fluid was present, the volume of gastric fluid was calculated as a mean of three consecutive readings based on the antral cross-sectional area in the RLD position using a previously validated mathematical model.…”

Section: Methodsmentioning

confidence: 99%

“…1). 12 Both qualitative (type of content) and quantitative (volume) assessments of gastric content were performed and documented. The findings of the ultrasound exam were summarized and conveyed to the attending anesthesiologist in a standardized fashion according to the following categories: 1) empty stomach (no fluid or solid content visible); 2) low volume of clear fluid (\ 1.5 mLÁkg -1 ) consistent with baseline gastric secretions; 3) high volume of clear fluid ([ 1.5 mLÁkg -1 ), suggesting greater than baseline gastric secretions; and 4) thick fluid or solid content (Fig.…”

Section: Methodsmentioning

confidence: 99%

“…11,12 Ultrasound examinations were conducted by one of two staff anesthesiologists or one of three anesthesiology fellows under staff supervision, with previous experience in gastric ultrasound ranging from four months to five years and a minimum of 50 prior gastric examinations. The investigators performing the ultrasound exams were not directly involved in patient care, and they did not make or suggest any management decision.…”

Section: Methodsmentioning

confidence: 99%

“…[11][12][13][14][15][16] The aim of this prospective case series was to evaluate if the addition of point-of-care gastric ultrasound to standard patient assessment alters the stratification of aspiration risk and leads to changes in the anesthetic management of elective surgical patients who did not follow fasting instructions.…”

Section: Résumémentioning

confidence: 99%

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Point-of-care ultrasound defines gastric content and changes the anesthetic management of elective surgical patients who have not followed fasting instructions: a prospective case series

Alakkad

Kruisselbrink

Chin

et al. 2015

Can J Anesth/J Can Anesth

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Validity of ultrasonographic measurement of gastric volume in fasted pediatric patients without sedation

2016

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Recently, gastric ultrasonography has been used as a noninvasive portable tool for evaluating gastric content and volume in adults and children. Pediatric patients are not always cooperative, especially younger ones, and it may be difficult to keep them in the appropriate scanning position without sedation. Hence, we modified the scanning method and position, and evaluated the efficacy of this alternative scanning technique in pediatric cases. We evaluated the gastric contents of 44 pediatric patients aged 4-14 years who were about to undergo elective surgery. Solid food and fluids were prohibited 8 and 2 h before anesthesia, respectively. Before anesthetic induction, we used gastric ultrasonography to measure the antral cross-sectional area in the supine position (supine CSA), irrespective of peristaltic contractions. The gastric volume was then aspirated using a multi-orifice catheter under general anesthesia. Supine CSA measured via this gastric ultrasonography method was positively correlated with gastric volume (r = 0.56, p < 0.0001). We concluded that our alternative method of measuring antral CSA may be applicable for children minimal gastric contents.

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Validation of a Mathematical Model for Ultrasound Assessment of Gastric Volume by Gastroscopic Examination

Cited by 33 publications

References 0 publications

GASTRIC RESIDUAL VOLUME BY MAGNETIC RESSONANCE AFTER INTAKE OF MALTODEXTRIN AND GLUTAMINE: a randomized double-blind, crossover study

GASTRIC RESIDUAL VOLUME BY MAGNETIC RESSONANCE AFTER INTAKE OF MALTODEXTRIN AND GLUTAMINE: a randomized double-blind, crossover study

Point-of-care ultrasound defines gastric content and changes the anesthetic management of elective surgical patients who have not followed fasting instructions: a prospective case series

Validity of ultrasonographic measurement of gastric volume in fasted pediatric patients without sedation

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