Wireless capsules for esophageal pH monitoring: are we placing them correctly?

Background: Recommended Bravo capsule placement is 6 cm proximal to the squamocolumnar junction. This is because the junction resides 1 cm distal to the lower esophageal sphincter.

Aim: To determine the positional accuracy of capsule placement compared with the ideal location in symptomatic patients.

Egg labeling methods for gastric emptying scintigraphy are not equivalent in producing a stable solid meal.

Unlabelled: A wide range of radiolabeled test meals have been used for gastric emptying scintigraphy. The purpose of this study was to test whether (99m)Tc-sulfur colloid-labeled liquid egg white is as stable as 2 fresh whole eggs labeled with (99m)Tc-sulfur colloid and whether the cooking method is important.

Methods: Whole eggs and liquid egg white were mixed with (99m)Tc-sulfur colloid and cooked by either microwaving or frying on a griddle.

Regional postprandial differences in pH within the stomach and gastroesophageal junction.

Our objective was to determine regional differences in intragastric pH after different types of meals. Ten normal subjects underwent 27-hr esophagogastric pH monitoring using a four-probe pH catheter. Meals were a spicy lunch, a high-fat dinner, and a typical bland breakfast.