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Table 2 Descriptions of confirmed awareness reported by patients

From: Is hyperlipidemia a potential protective factor against intraoperative awareness in cardiac surgery?

Number

Gender and age

Surgery

Reported events

Michigan awareness classification

1

M/67

CABG

Formication; perception of central line placement; mild pain

Class 3

2

M/73

Bentall procedure

Precordial stabs; nausea

Class 2D

3

M/64

CABG

Operation on the chest

Class 2

4

M/30

Repair of aneurysm of aortic sinus, repair of VSD

Perception of central line placement

Class 2

5

F/53

MVR

Placement of nasal thermometer

Class 2

6

M/23

Modified Morrow procedure

A surgeon making explanations in a Tangshan accent

Class 1

7

M/65

Wheat procedure and CABG

Dreaming things back in decades ago; lower extremity operation

Class 2

8

M/66

CABG

Intubation

Class 2

9

M/40

Repair of aneurysm of aortic sinus

Intubation; operation, electroshock on heart

Class 2

10

M/67

CABG

Intubation, feeling nausea twice

Class 2D

11

M/60

CABG

Scalpel incision; voice from doctors

Class 2

12

M/60

CABG

Intubation; internal jugular vein catheterization

Class 2

13

M/65

CABG

Sensation of operation on chest and lower limb

Class 2

14

M/66

Resection of atrial myxoma, TVP

Feelings of bugs-like crawling on the chest

Class 2

15

M/38

ASD repair, TVP

Sensation of sounds from the respirator

Class 1

16

M/56

CABG

Heard the surgeons’ talking

Class 1

17

F/45

MVR, TVP

Heard the sounds of electric scalpel, like “chi, chi”

Class 1

18

F/18

ASD repair

Intubation; nausea; discomfort on the back

Class 2D

19

F/59

MVR, TVP

Operation

Class 2

20

M/49

CABG

Water dripping-like sounds of the machine; sensation of intubation and a severe feeling of nausea

Class 2D

21

F/56

CABG

Sensation of the operation; severe pain, being unable to move

Class 5

22

M/55

Correction of aberrant of pulmonary artery, TVP

Sounds of the machine in the operation room

Class 1

23

M/34

Replacement of aortic root and ascending aorta

Sounds of a scalpel and scissor

Class 1

24

F/51

Replacement of ascending aorta

Heard the surgeon talking about the electric defibrillations, of which only the third time worked

Class 1

25

F/60

MVR, AVR, TVP

Heard the surgeon said the operation was well finished; intubation; felt nausea twice

Class 2D

26

F/50

MVP

Dreaming, cannot afford details; heard the surgeon’s talking; central line placement

Class 2

27

M/58

CABG

Lower limb operation

Class 2

28

M/74

CABG

Intubation; felt nausea; sensation of the operation on the chest

Class 2D

29

M/62

CABG

Operation on chest with burning heat

Class 2

30

F/30

Repair of ASD, TVP

Sounds like sawing wood

Class 1

31

F/31

Repair of ASD, TVP

Voice, such as “pass the scalpel to me”

Class 1

32

M/43

Modified Morrow procedure

Operation on chest; severe pain, wanting for more anesthetics

Class 3D

33

M/60

CABG

Felt awake for a long time and felt like breathing with effort

Class 1D

34

M/52

Bentall procedure

Heard “chi-chi” like sounds

Class 1

35

M/46

MVR, AVR, TVP

Heard the surgeon said the operation will be finished in an hour; heard the “dong-dong” like sounds

Class 1

36

M/37

MVR

Dreaming of receiving cardiac surgery; sensed the central line placement

Class 2

37

F/48

MVR, TVP, and PDA repair

Scissors cutting on the chest; mild pain

Class 3

38

M/60

CABG

Operation on chest and lower limb

Class 2

39

M/41

CABG

Something dragged down from the chest; unable to move; central line placement

Class 4

40

M/59

MVR, CABG

“chi-chi” sound

Class 1

41

M/34

CABG

Dreaming of the lifetime in high school; heard the surgeon said the operation was almost finished

Class 1

42

F/58

CABG

Heard the surgeon said 5 bypass grafts were done, and the 2 nurses had done a great job

Class 1

43

M/40

AVR

Intubation; unable to move; afraid

Class 4D

44

M/57

CABG

Chest stuffy, unable to speak

Class 4D

45

M/56

Replacement of descending aorta

Intubation; nausea

Class 2D

46

M/54

CABG

Heard the surgeon said the operation was well done; felt his chest stabbed 4–5 times.

Class 2

  1. Abbreviations: CABG coronary artery bypass grafting, MVR mitral valve replacement, AVR aortic valve replacement, TVP tricuspid valvuloplasty, PDA patent ductusarteriosus