Prolapse of the kidney may cause or maintain disease of the female pelvic organs by interfering with the return circulation from the pelvis and producing pelvic congestion. This may be brought about chiefly in two ways:
The renal artery being less yielding than the other structures constituting the renal pedicle, dragging upon it by the kidney crowds the aorta over against the vena cava and distorts that great channel of return circulation when it is the right kidney that is prolapsed.
When the displaced kidney reaches a certain point in its descent it is situated immediately in front of the ovarian vein as it ascends to empty into the vena cava just below the renal vein on the right or into the left renal vein on the left side. Hence, pressure backward upon the kidney, as from corsets, or clothing at the waist, or from accumulation of gas or feces
GOELET AH. THE INFLUENCE OF PROLAPSE OF THE KIDNEY ON THE PRODUCTION OF DISEASE OF THE FEMALE PELVIC ORGANS. JAMA. 1902;XXXIX(8):417–422. doi:10.1001/jama.1902.52480340011001d
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