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Table 5 Comparisons of survived and death cases. Values are mean (SD), median (IQR [range]) or number (proportion)

From: Malignant hyperthermia when dantrolene is not readily available

 

Survived

Death

P value

Age; y (n = 92)

24.2 (16.7)

23.1 (17.3)

0.756

Sex; male (n = 92)

40 (80.0%)

32 (76.2%)

0.659

Combined congenital disease (n = 92)

21 (42.0%)

22 (52.4%)

0.32

First sign interval; h (n = 83)

1.0 (0.2–2.8 [0–11.0])

1.5 (1.0–2.0 [0–18.0])

0.787

Maximum end-tidal PCO2; mmHg (n = 39)

85.0 (71.8–101.3 [60.0–149.0])

91.0 (86.0–126.5 [75.0–223,0])

0.033

Maximum arterial PCO2; mmHg (n = 44)

83.0 (73.9–99.4 [53.0–120.0])

101.0 (87.8–152.2 [52.8–250.0])

0.006

T first measured; °C (n = 64)

38.5 (38.0–39.1 [35.8–43.0])

39.3 (38.6–41.1 [37.0–42.5])

0.012

Maximum T; °C (n = 88)

40.3 (39.3–41.4 [38.3–44.5])

42.3 (42.0–43.1 [39.4–46])

< 0.001

Maximum HR; bpm (n = 65)

160.0 (140.0–180.0 [110.0–220.0])

160.0 (150.0–190.0 [120–230.0])

0.187

Generalised muscular rigidity (n = 92)

29 (58.0%)

31 (73.8%)

0.113

Normal BP when first discovered (n = 92)

18 (36.0%)

8 (19.0%)

0.072

Increased BP when first discovered (n = 92)

1 (2.0%)

5 (11.9%)

0.055

No drop in BP when first discovered (n = 92)

19 (38.0%)

13 (31.0%)

0.48

Cola-colored urine (n = 92)

11 (22.0%)

12 (28.6%)

0.468

Oliguria or anuria (n = 92)

9 (18.0%)

13 (31.0%)

0.147

Minimum pH (n = 48)

7.14 (7.08–7.22 [6.81–7.40])

6.92 (6.79–7.05 [6.57–7.24])

< 0.001

Potassium; mmol/L (n = 44)

5.2 (4.6–5.7 [3.8–6.7])

7.1 (6.5–8.3 [5.7–10.1])

< 0.001

Coagulation disorders (n = 92)

11 (22.0%)

19 (45.2%)

0.018

Patient used sodium bicarbonate (n = 92)

31 (62.0%)

30 (71.4%)

0.341

Patient used glucocorticoid (n = 92)

35 (70.0%)

31 (73.8%)

0.686

Patient used active cooling (n = 92)

42 (84.0%)

30 (71.4%)

0.145

Patient used furosemide (n = 92)

32 (64.0%)

17 (40.5%)

0.024

Patient used mannitol (n = 92)

12 (24.0%)

3 (7.1%)

0.029

Patient used blood purification treatment (n = 92)

13 (26.0%)

3 (7.1%)

0.017

Clinical grading scale score; point (n = 82)

58.0 (51.0–63.0 [33.0–73.0])

58.0 (51.0–61.0 [33.0–73.0])

0.809

  1. PCO2 partial pressure of carbon dioxide; T temperature; HR heart rate; BP blood pressure