Tracheopulmonary Complications of a Malpositioned Nasogastric Tube

Preclinical trial of the effectiveness of a safety nasogastric tube to detect the tube position based on tidal volume and pepsin assay results in the gastrointestinal tract of Macaca fascicularis

BACKGROUND

Tube misplacement into the tracheobronchial tract is associated with pneumothorax in 0.5% of cases. NGT verification only detects the position of the tube at the end of the procedure. Therefore, a safe nasogastric tube (SNGT) was created to detect the NGT position in real time in a simple and inexpensive way. This study aimed to prove the effectiveness of the SNGT prototype in Macaca fascicularis.

RESULT

An SNGT producing 50% of the TV had 100% sensitivity and specificity in detecting the position of the tube at 100% of the TV, with a sensitivity of 100% and a specificity of 87.5%. There was a significant difference between the movement of the SNGT 50% TV and SNGT 100% TV airbags (p ≤ 0.05). However, there was no significant difference between the accuracy of placement of the 50% TV SNGT, 100% TV SNGT, and conventional NGT (p > 0.05). The pepsin enzyme had better sensitivity (100%) than pH paper (91.66%) in detecting the end-of-procedure tube position. This research has the potential to advance into human clinical trials.

CONCLUSION

SNGTs are highly effective in detecting the NGT position inside the respiratory and digestive tracts to prevent misplacement.

Chest X-ray Interpretation: Detecting Devices and Device-Related Complications

This short review has the aim of helping the radiologist to identify medical devices when interpreting a chest X-ray, as well as looking for their most commonly detectable complications. Nowadays, many different medical devices are used, often together, especially in critical patients. It is important for the radiologist to know what to look for and to remember the technical factors that need to be considered when checking each device's positioning.

A Case Report of Esophageal Perforation: Complications of Orogastric Tube Placement

Orogastric tube (OGT) insertion is a routine procedure in medical care. It is often inserted in patients after endotracheal intubation. OGT insertion is often a blind procedure. Misplacement of the tube can cause a variety of complications and can sometimes be life-threatening. We present the case of a 71-year-old male patient who experienced a rare proximal esophageal perforation as a complication of blind insertion of the OGT; he required OGT insertion after receiving endotracheal intubation for hypoxic respiratory failure secondary to COVID-19 infection. The esophageal perforation was revealed on a post-procedural roentgenogram and confirmed by a subsequent computed tomography of the chest. Given the small size of the perforation and the absence of clinical instability, conservative management was pursued leading to improvement of the mediastinitis. Although the complications of OGT insertion are uncommon, their consequences can be potentially serious and require a high degree of suspicion.