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1 "Rahul Sharma"
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The diagnostic accuracy of ultrasonography over manual aspiration for gastric reserve volume estimation in critically ill patients
Rahul Sharma, Ravi Kant Dogra, Jyoti Pathania, Arti Sharma
Acute Crit Care. 2023;38(1):134-141.   Published online February 22, 2023
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AbstractAbstract PDF
Although gastric reserve volume (GRV) is a surrogate marker of gastrointestinal dysfunction and feeding intolerance, there is ambiguity in its estimation due to problems associated with its measurement. Introduction of point-of-care ultrasound as a tool for anesthetists kindled interest in its use for GRV estimation. Methods: In this prospective observational study, we recruited 57 critically ill patients and analyzed 586 samples of GRV obtained by both ultrasonography (USG) and manual aspiration. Results: The analysis showed that USG-guided GRV was significantly correlated (r=0.788, P<0.001) and in positive agreement with manual aspiration based on Bland-Altman plot, with a mean difference of 8.50±14.84 (95% confidence interval, 7.389–9.798). The upper and lower limits of agreement were 37.7 and –20.5, respectively, within the ±1.96 standard deviation (P<0.001). The respective sensitivity and positive predictive value, specificity and negative predictive value, and area under the curve of USG for feeding intolerance were 66.67%, 98.15%, and 0.82%, with 96.49% diagnostic accuracy. Conclusions: Ultrasonographic estimation of GRV was positively, significantly correlated and in agreement with the manual aspiration method and estimated feeding intolerance earlier. Routine use of gastric USG could avoid clinical situations where feeding status is unclear and there is high risk of aspiration and could become a standard practice of critical care.


Citations to this article as recorded by  
  • Correlación de volumen residual gástrico medido y ultrasonido gástrico para identificar intolerancia gástrica en pacientes neurocríticos con nutrición enteral en la unidad de cuidados intensivos
    Mauricio Pérez-Macías, Roxana Vázquez-Ramírez, Marcela Pinedo-Lechuga
    Medicina Crítica.2024; 38(2): 102.     CrossRef
  • Gastrointestinal function in critically ill patients
    Annika Reintam Blaser, Kaspar F. Bachmann, Adam M. Deane
    Current Opinion in Clinical Nutrition & Metabolic Care.2023; 26(5): 463.     CrossRef

ACC : Acute and Critical Care