PMID- 10024804
OWN - NLM
STAT- MEDLINE
DCOM- 19990316
LR  - 20061115
IS  - 0021-5252 (Print)
IS  - 0021-5252 (Linking)
VI  - 52
IP  - 1
DP  - 1999 Jan
TI  - [Effects of coronary artery bypass surgery on the stunned and hibernating 
      myocardium in the cases with depressed left ventricular function].
PG  - 59-63
AB  - Chronic left ventricular (LV) dysfunction may result from irreversible damage 
      (cell death), stunned myocardium (ST), or hibernating myocardium (HB). However, 
      both of ST and HB are expected to be reversible. In this report, the effects of 
      coronary artery bypass grafting on the regions of ST and HB were evaluated in 37 
      patients with less than 40% of LV ejection fraction. The patients were divided 
      into two groups. Group I consisted of the patients whose postoperative LV 
      ejection fraction rose by more than 10% compared to the preoperative value. Group 
      II included the remaining patients with no significant improvement. After 
      successful revascularization, 61% of HB changed to ST and 52% of ST to normal in 
      group I. These changes were significant in comparison with group II because 48% 
      of HB and 83% of ST in group II remained unchanged. Immediate or rapid recovery 
      of HB hardly occurred in both of the groups. To recover normal function, HB may 
      pass through a stage of ST on reperfusion. On the other hand, it is difficult to 
      determine whether HB and ST with no significant changes after reperfusion are 
      irreversibly damaged or reversible and take time to return to normal.
FAU - Konishi, Y
AU  - Konishi Y
AD  - Cardiovascular Surgery, Japanese Red Cross Society Wakayama Medical Center, 
      Japan.
FAU - Matsumoto, M
AU  - Matsumoto M
FAU - Miwa, S
AU  - Miwa S
FAU - Minakata, K
AU  - Minakata K
FAU - Nonaka, M
AU  - Nonaka M
FAU - Yamada, N
AU  - Yamada N
LA  - jpn
PT  - English Abstract
PT  - Journal Article
PL  - Japan
TA  - Kyobu Geka
JT  - Kyobu geka. The Japanese journal of thoracic surgery
JID - 0413533
SB  - IM
MH  - Aged
MH  - *Coronary Artery Bypass
MH  - Coronary Circulation
MH  - Female
MH  - Humans
MH  - Male
MH  - Middle Aged
MH  - Myocardial Stunning/physiopathology/*surgery
MH  - Ventricular Dysfunction, Left/physiopathology/*surgery
EDAT- 1999/02/20 00:00
MHDA- 1999/02/20 00:01
CRDT- 1999/02/20 00:00
PHST- 1999/02/20 00:00 [pubmed]
PHST- 1999/02/20 00:01 [medline]
PHST- 1999/02/20 00:00 [entrez]
PST - ppublish
SO  - Kyobu Geka. 1999 Jan;52(1):59-63.