PMID- 22576649
OWN - NLM
STAT- MEDLINE
DCOM- 20121010
LR  - 20211021
IS  - 1863-6713 (Electronic)
IS  - 1863-6705 (Linking)
VI  - 60
IP  - 6
DP  - 2012 Jun
TI  - Long-term results of the Maze procedure in patients with mechanical valve.
PG  - 326-33
LID - 10.1007/s11748-012-0041-3 [doi]
AB  - BACKGROUND: The advantage of the Maze procedure concomitant with the mechanical 
      valve implantation is unclear. This study evaluated the long-term results of 
      mechanical valve implantation either alone or concomitant with the Maze 
      procedure. METHODS: Between 1990 and 2005, 208 patients underwent mitral valve 
      replacement with a mechanical valve. Maze procedure was concomitantly performed 
      in 77 patients, and 54 of these had restored sinus rhythm (Maze group). The other 
      131 patients did not perform the Maze procedure (non-Maze group). Survival and 
      late outcomes were studied retrospectively with univariate analysis (log-rank 
      test), and a case-matched study by propensity score was performed. The late New 
      York Heart Association (NYHA) functional status obtained by questionnaire and the 
      cardiac function observed by echocardiography were studied for comparison of the 
      two groups. RESULTS: Survival and late outcomes, except for bleeding, were not 
      significantly different between the groups, and this was also true of the 
      case-matched study. In the NYHA functional status, the Maze group had more class 
      I patients, while the non- Maze group has more class II patients. The left 
      ventricular ejection fraction, left atrial enlargement, and tricuspid 
      regurgitation were not significant factors affecting the differences between 
      class I and II patients. CONCLUSIONS: The Maze procedure is considered to be 
      worth for patients who need life-long anticoagulation for the mechanical valve 
      because it improves the NYHA functional status.
FAU - Araki, Yoshimori
AU  - Araki Y
AD  - Department of Cardiac Surgery, Nagoya University Graduate School of Medicine, 
      Nagoya, Aichi, Japan. yaraki@med.nagoya-u.ac.jp
FAU - Oshima, Hideki
AU  - Oshima H
FAU - Usui, Akihiko
AU  - Usui A
FAU - Ueda, Yuichi
AU  - Ueda Y
LA  - eng
PT  - Journal Article
DEP - 20120511
PL  - Japan
TA  - Gen Thorac Cardiovasc Surg
JT  - General thoracic and cardiovascular surgery
JID - 101303952
RN  - 0 (Anticoagulants)
SB  - IM
MH  - Aged
MH  - Anticoagulants/therapeutic use
MH  - Atrial Appendage/surgery
MH  - Atrial Fibrillation/diagnostic imaging/mortality/physiopathology/*surgery
MH  - Chi-Square Distribution
MH  - *Cryosurgery/adverse effects/mortality
MH  - Female
MH  - Heart Valve Diseases/diagnostic imaging/mortality/physiopathology/*surgery
MH  - *Heart Valve Prosthesis Implantation/adverse effects/mortality
MH  - Humans
MH  - Japan
MH  - Kaplan-Meier Estimate
MH  - Logistic Models
MH  - Male
MH  - Middle Aged
MH  - Mitral Valve/diagnostic imaging/physiopathology/*surgery
MH  - Odds Ratio
MH  - Propensity Score
MH  - Retrospective Studies
MH  - Risk Assessment
MH  - Risk Factors
MH  - Surveys and Questionnaires
MH  - Time Factors
MH  - Treatment Outcome
MH  - Ultrasonography
EDAT- 2012/05/12 06:00
MHDA- 2012/10/12 06:00
CRDT- 2012/05/12 06:00
PHST- 2011/03/26 00:00 [received]
PHST- 2011/09/27 00:00 [accepted]
PHST- 2012/05/12 06:00 [entrez]
PHST- 2012/05/12 06:00 [pubmed]
PHST- 2012/10/12 06:00 [medline]
AID - 10.1007/s11748-012-0041-3 [doi]
PST - ppublish
SO  - Gen Thorac Cardiovasc Surg. 2012 Jun;60(6):326-33. doi: 
      10.1007/s11748-012-0041-3. Epub 2012 May 11.