What might indicate a need for gastric decompression via PEG?

The indication for gastric decompression via percutaneous endoscopic gastrostomy (PEG) is primarily associated with situations where there is a need to alleviate pressure or reduce gastric distension. Gastric outlet obstruction is a condition where the passage of contents from the stomach to the duodenum is blocked, which can lead to significant gastric distention, vomiting, and pain. In these instances, gastric decompression is required to relieve these symptoms and prevent further complications.

A PEG tube allows for the continuous drainage of gastric contents, which helps to decompress the stomach and provide symptomatic relief. By providing an access point for decompression, a PEG tube can also facilitate nutritional support for patients who are unable to consume food orally, particularly in cases where they have ongoing obstruction.

The other conditions listed do not typically require gastric decompression through a PEG tube. Crohn's disease may lead to obstruction but is not a direct indication on its own. Heart disease can complicate surgical decisions but does not necessitate gastric decompression. Kidney stones likewise do not have a relation to gastric distension and do not require this type of intervention. Therefore, gastric outlet obstruction stands out as the clear indication for the need for gastric decompression via a PEG.