What solution should be used for gastric lavage three days before surgery for pyloric obstruction?

In general, patients with pyloric obstruction can go to a正规 hospital three days before surgery to undergo gastric lavage using normal saline or sodium bicarbonate solution. If gastric lavage is required, it should be performed by a qualified physician. Specific analysis is as follows:

1. Normal Saline

Normal saline is a mild cleansing agent that effectively removes residual food, gastric juice, and other substances from the stomach. It reduces irritants in the stomach, helping to alleviate irritation and inflammatory responses of the gastric mucosa.

Additionally, normal saline contains appropriate amounts of sodium chloride and water, which help maintain the body's electrolyte balance, prevent electrolyte disturbances during gastric lavage, and protect the patient's physiological health.

2. Sodium Bicarbonate Solution

Sodium bicarbonate solution is alkaline and can neutralize the acidic environment in the stomach, reducing the irritating and corrosive effects of gastric acid. This helps relieve stomach pain and discomfort caused by pyloric obstruction.

At the same time, sodium bicarbonate solution can soften food residues in the stomach, making them easier to remove from the gastric cavity, thereby reducing the degree of pyloric obstruction and creating favorable conditions for subsequent treatment and surgery.

It is recommended that patients with pyloric obstruction avoid smoking and alcohol consumption for at least two weeks before surgery, pay attention to nutritional supplementation, and provide adequate energy support for postoperative recovery. Patients should fast for 12 hours before surgery and abstain from fluids for 4 hours prior to the procedure. They should also maintain a positive emotional state and avoid tension or anxiety.