Table 1. Symptomatic response to jugular venoplasty in 14 patients with chronic fatigue syndrome.

Opening pressure (cms H20)	Symptomatic improvement with CSF withdrawal	Symptomatic improvement with venoplasty	Description and duration of the effect of venoplasty.
29*	yes	yes	Symptomatic improvement starting within 10 minutes lasting 2 days.
25*	yes	yes	None immediately; gradual improvement in all symptoms up to 3 days.
24*	yes	yes	Immediate resolution of headache lasting 10 minutes.
22*	yes	yes	Immediate reduction in headache lasting 2 days.
21	no	yes	Immediate feeling of intense “joy” lasting a few minutes.
19	no	yes	Energy levels better for 24 hours. Headaches reduced for several weeks.
17	no	yes	Reduced headaches for 3 days.
17	yes	yes	Symptomatic improvement starting within 3 days lasting 6 weeks.
17	yes	yes	Gradual improvement in all symptoms over 4 days lasting 7 days. Still headache free at 3 months.
16	yes	yes	Head cleared immediately lasting 6 hours
15	Yes	Yes	Worse at first, then by day10 more energy, thinking more clearly
14	yes	yes	Head clearer within 10 minutes lasting one month or more.
14	yes	yes	Nothing at first. Then episodes of mental clarity from day 3 to day 6.
12	yes	yes	Head better immediately. Still some benefit at one month.

^*match ICHD-2 criteria for IIH. [13]