It has been our experience that the unaided stomach-tube occasionally fails to detect gastric stasis which is demonstrable with the bismuth meal and Roentgen ray. Discrepancies in the Roentgen ray and stomach-tube findings were apparently not due to the position of the patient at the time of the passage of the tube ; for we have observed them with patients in the sitting, supine and right reclining positions. The long axis of the stomach is more perpendicular than horizontal, but inclines somewhat to the right. Theoretically then, when the patient is reclining slightly on the right side, the gastric contents should occupy a narrower portion of the stomach than when the patient is in the erect sitting position, which is commonly employed in using the stomach-tube. The contents of the stomach in the slightly reclining right-sided posture should be of greater depth than when more spread over the greater curvature, as
HARMER TW, DODD WJ. SOURCES OF ERROR IN THE USE OF THE STOMACH-TUBE FOR DIAGNOSIS. PRELIMINARY REPORT. Arch Intern Med (Chic). 1913;XII(5):488–502. doi:10.1001/archinte.1913.00070050005002
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