According
to the flow equation three main types of anal incontinence (A.I.)
can be recognized
Passive A.I. (During rest).
Where flow is calculated using maximum Intrarectal pressure
during rest and A.C. Length and Diameter during rest
Stress A.I. (During reflex
squeeze e.g. on coughing). Where flow is measured using maximum
IRP during cough and A.C. Length and Diameter during squeeze.
Urgency A.I. (During voluntary
squeeze). Where flow is measured using maximum IRP during
sense of Urgency and A.C. Length and Diameter during Squeeze.
Correction
for Sensory and Reflex Components
Passive A.I.:
1.
For delayed first sensation the flow index is measured using
maximum
IRP just before the first sensation and A.C. Length and
Diameter During rest.
2. For reflex deficit: If profound RAIR precedes the first
sensation Causing unconscious profound inhibition of the anal
sphincter (overflow incontinence) e.g. neurogenic A.I. Where
flow is measured using maximum IRP during rest and A.C. Length
and diameter during full relaxation (defecation).
Stress A.I.:
Correction
for defective reflex contraction of the sphincters where the
maximum IRP during coughing challenges the anal Sphincter
in its resting state instead of its contraction state.
Flow is measured using maximum IRP during cough and A.C.
Length
and Diameter during rest.
Urgency A.I.:
When
profound RAIR precedes the sense of urgency where Flow is
measured using Maximum IRP during urgency and A.C.
Length and Diameter during full relaxation (defecation).
