The effect of Na2SO4NaHCO3 bathing (3). Increase of pCO2 and tissue perfusion by serial bathing / 日本温泉気候物理医学会雑誌

ABSTRACT

The warming effect following serial bathing in the water containing Na₂SO₄·NaHCO₃ was studied in rabbits by mass spectrometry.<br>Rabbits, weighing about 2kg, were placed in a bath containing Na₂SO₄·NaHCO₃ (33g/20l) at 36-37°C for 20 minutes every day for 3 weeks.<br>By mass spectrometry, the subcutaneous tissue perfusion rate was calculated on the basis of changes in the partial pressure of Argon injected on diffusion membrane of the sensor catheter.<br>The mean subcutaneous pCO₂ was 46.6±14.6mmHg in the Na₂SO₄·NaHCO₃ bath group and 28.8±6.7mmHg in the control tap water group; the tissue perfusion rate in these two groups was 26.78±6.45ml/100g/min and 20.32±7.15ml/100g/min, respectively.<br>The warming effect of Na₂SO₄·NaHCO₃ bathing is thought to be derived from increased metabolism and micro-circulation dynamics resulting from dermal stimulation by Na₂SO₄·NaHCO₃.