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Updated: Nov 17, 2025

Author Spotlight: Point-of-Care Ultrasound for Gastric Content Assessment and Risk Stratification in Perioperative Care
Published on: September 22, 2023
Ultrasonography-guided post-pyloric feeding tube insertion in medical intensive care unit patients
Uğur Özdemir1, Şeyma Yıldız2, Gulbin Aygencel3
1Division of Critical Care Medicine, Department of Internal Medicine, Gazi University Faculty of Medicine, Ankara, Turkey. ugureuzdemir@gmail.com.
Insights
Ultrasonography (USG) guidance enables safe and rapid post-pyloric enteral feeding (PPEF) tube insertion in ICU patients. This technique achieved an 87.9% success rate with minimal complications, facilitating timely enteral nutrition.
Area of Science:
- Medical Imaging
- Gastroenterology
- Intensive Care Medicine
Background:
- Enteral nutrition is crucial for critically ill patients.
- Accurate post-pyloric feeding tube placement is challenging.
- Ultrasonography offers a non-invasive guidance method.
Purpose of the Study:
- To evaluate the efficacy of ultrasonography (USG)-guided post-pyloric enteral feeding (PPEF) tube insertion.
- To determine the placement and complication rates of USG-guided PPEF.
- To assess the time efficiency of this procedure in intensive care unit (ICU) patients.
Main Methods:
- A prospective, single-center cohort study involving 33 ICU patients requiring enteral nutrition.
- Ultrasonography (USG) was used to guide the insertion of feeding tubes into the proximal duodenum.
- Linear and convex probes were utilized to visualize the esophagus and post-pyloric region, respectively.
Main Results:
- Successful post-pyloric placement was achieved in 87.9% of patients (29/33).
- The median insertion time for successful placement was 14 minutes.
- Only one complication (self-limiting epistaxis) occurred, indicating a high safety profile.
Conclusions:
- Ultrasonography-guided PPEF tube insertion is a safe and effective method for initiating enteral feeding in ICU patients.
- The technique demonstrates a high success rate and rapid procedure time without radiation exposure.
- USG guidance facilitates timely and accurate post-pyloric feeding tube placement, improving patient care.
Abstract:
In this study, we investigated placement rate, complication rate and time spent of successful post-pyloric enteral feeding (PPEF) tube insertion procedure guided by ultrasonography (USG). The patients who required enteral nutrition and who admitted to medical intensive care unit (MICU) of Gazi University Hospital were included to this single-center, prospective, cohort study. It was aimed to insert the enteral feeding tube into the proximal duodenum as the post-pyloric area by ultrasonography guidance. During the PPEF tube insertion procedure, the linear probe was used to display the proximal esophagus and the convex probe was used to display the post-pyloric area, antrum and pyloric channel. 33 patients were included in this study. The median age was 68 [IQR 52-79] years. There were 17 (51.5%) woman and 22 (66.7%) intubated patients. The enteral feeding tube was successfully passed into the post-pyloric area in 29 (87.9%) patients with this technique. The median time of successful feeding tube insertion was 14 [IQR 10-25] min. The median level of the enteral feeding tube was 74 [IQR 70-76] cm. in successful placement. There was no significant difference in insertion time according to gender (female vs male; 10 [IQR 8-20] min. vs 17 [IQR 12-25] min., p = 0.052) and endotracheal intubation status (intubated vs non-intubated; 14 [IQR 10-25] min. vs 12 [IQR 10-25] min., p = 0.985). Only one complication was seen during study (self-limiting epistaxis in one patient). PPEF tube insertion under USG guidance could ensure the initiation of enteral feeding safely and rapidly without exposure to radiation in ICU patients.
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