Esophageal pressure measurements in cardiopulmonary exercise testing.

  title={Esophageal pressure measurements in cardiopulmonary exercise testing.},
  author={Associate Professor Merlin C. Thomas and Ross E. Turner and Michael F. Tenholder},
  volume={112 3},
STUDY OBJECTIVES We sought to determine the adaptability and effectiveness of a new esophageal balloon technique to measure changes in esophageal pressure (Pes) as a reflection of pleural pressure with progressive incremental exercise testing in normal subjects. DESIGN An 8F (0.9 cm) esophageal balloon catheter (Smart Cath; Allied Health Products; Riverside, Calif), a CP-100 pulmonary monitor (BiCore Monitoring Systems PC-100; Irvine, Calif), and a flow transducer (Var flex; Allied Health… CONTINUE READING