Table 1

Most Frequently Asked Questions About MH

 Preoperative assessment of MH susceptibility  20%
 Safe anesthetic techniques  13%
 Need for dantrolene pretreatment  12%
 Safety of local anesthetics  7%
 Appropriate MH workup  5%
 Intraoperative monitoring  5%
 Preparation of equipment  5%
 Postoperative management  3%
 Appropriate outpatient observation period  3%
 Safety of propofol  3%


Table 2

MH Hotline Case Calls from January 1990 Through June 1996

1990

1991

1992

1993

1994

1995

1996 Jan-Jun

Total

Total (%)

Acute MH without MMR 17 20 16 25 28 22 12 140 11.4
Acute MH with MMR 3 4 6 11 4 2 1 31 2.5
Suspect MH 21 16 13 10 15 9 6 90 7.3
Total MH 41 40 35 46 47 33 19 261 21.2
MMR only 69 74 45 37 18 23 13 279 22.7
Not-MH 74 104 84 83 113 94 46 598 48.8
Not enough information 11 6 18 20 13 14 6 88 7.2
Total Consultations 195 224 182 186 191 164 84 1226 100


Table 3

Comparison of Total MH and Not-MH Categories by Time of Episode, Age at Presentation and Gender

Time of episode (%)

Age at presentation (%)

Gender (%)

induction

intraop

postop

<15

15-44

45-64

>65

male

female

Total MH 39 49 9 54 34 6 2 62 53
Not-MH 16 23 53 37 34 10 5 24 27