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Table 3 Number and distribution of procedures, by type of admission

From: Hospitalizations due to respiratory failure in patients with Amyotrophic Lateral Sclerosis and their impact on survival: a population-based cohort study

Procedures (ICD-9-CM codes) a

Type of admission

Overall

(N = 885)

Emergency

(N = 421)

Elective

(N = 299)

Day hospital

(N = 165)

N

%

N

%

N

%

N

%

Respiratory function

 Mechanical ventilation (96.7–96.72)

126

29.9

37

12.4

-

-

163

18.4

   ≥ 96 h (96.72)

93

22.1

24

8.0

-

-

117

13.2

   < 96 h (96.71)

17

4.0

4

1.3

-

-

21

2.3

  Unspecified duration

16

3.8

9

3.0

-

-

25

2.8

 Tracheostomy (31.1–31.2)

53

12.6

10

3.3

-

-

63

7.1

 Non invasive ventilation (93.90)

21

5.0

6

2.0

8

4.8

35

3.9

 IPPB (93.91)

6

1.4

7

2.3

-

-

13

1.5

 Other respiratory therapy (93.94, 93.96, 93.97, 93.99)

43

10.2

8

2.7

-

-

51

5.8

 Measurement of arterial blood gases (89.65)

79

18.8

40

13.3

7

4.2

126

14.2

Nutrition

 Gastro- or entero- stomy

40

9.5

39

13.0

7

4.2

86

9.7

  PEGb (43.11)

32

7.6

29

9.6

7

4.2

68

7.6

  PEJc (46.32)

5

1.1

6

2.0

-

-

11

1.2

  Other gastrostomy (43.19)

3

0.7

4

1.3

-

-

7

0.7

Diagnostic procedures

 Electromyography (93.08)

16

3.8

47

15.7

49

29.7

112

12.6

 MRId of brain, brain stem and spinal canal (88.91, 88.93)

7

1.6

24

8.0

29

17.6

60

6.8

 Spinal tap (03.31)

4

0.9

10

3.3

5

3.0

19

2.1

 Bronchoscopy (33.21)

52

12.3

16

5.3

1

0.6

69

7.7

 Open biopsy of soft tissue (83.21)

1

0.2

14

4.6

-

-

15

1.6

  1. a ICD-9-CM codes for procedures in any position
  2. b Percutaneous endoscopic gastrostomy
  3. c Percutaneous endoscopic jejunostom
  4. d Magnetic resonance imaging