title: Functional independence measure for elderly patients undergoing aortic valve replacement.
abstract: OBJECTIVE
  This study aimed to evaluate the efficacy of the Functional Independence Measure to assess preoperative frailty for elderly patients undergoing surgical aortic valve replacement.
  
  
  METHODS
  Eighty-five patients >65 years who survived elective isolated aortic valve replacement from January 2008 to October 2015 were included. The mean age at the operation was 78 ± 6 years old (n = 28 males, n = 57 females). The patients were divided into two groups according to their status at discharge: impossible to discharge home or hospitalization for >30 days (compromised group, n = 8), or unaffected (unaffected group, n = 77). Preoperative frailty was evaluated with the Functional Independence Measure, which comprises 18 items divided into six domains: self-care, sphincter control, mobility, locomotion, communication, and social cognition.
  
  
  RESULTS
  The preoperative total Functional Independence Measure score was significantly lower in the compromised group (79 ± 32) than in the unaffected group (120 ± 9, p < 0.01). The preoperative motor Functional Independence Measure score was significantly lower in the compromised group (45 ± 24) than in the unaffected group (85 ± 9, p = <0.01). The duration of postoperative intubation, intensive care unit stay, and postoperative hospitalization were significantly longer in the compromised group than in the unaffected group (48 ± 67 vs 16 ± 12 h, p < 0.01; 6.7 ± 5.3 vs 3.4 ± 2.0 days, p < 0.01; 34 ± 27 vs 23 ± 11 days, p = 0.02, respectively).
  
  
  CONCLUSIONS
  The preoperative Functional Independence Measure is effective for assessing preoperative frailty in elderly patients undergoing aortic valve replacement in terms of predicting operative morbidity.
authors.affiliation: Department of Cardiovascular Surgery, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan.
authors.forename: Masaaki
authors.initials: M
authors.lastname: Ryomoto
authors.affiliation: Department of Cardiovascular Surgery, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan.
authors.forename: Masataka
authors.initials: M
authors.lastname: Mitsuno
authors.affiliation: Department of Cardiovascular Surgery, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan.
authors.forename: Mitsuhiro
authors.initials: M
authors.lastname: Yamamura
authors.affiliation: Department of Cardiovascular Surgery, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan.
authors.forename: Hiroe
authors.initials: H
authors.lastname: Tanaka
authors.affiliation: Department of Cardiovascular Surgery, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan.
authors.forename: Shinya
authors.initials: S
authors.lastname: Fukui
authors.affiliation: Department of Cardiovascular Surgery, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan.
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Kajiyama
authors.affiliation: Department of Cardiovascular Surgery, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan.
authors.forename: Ayaka
authors.initials: A
authors.lastname: Satou
authors.affiliation: Department of Cardiovascular Surgery, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan. y-miyamo@hyo-med.ac.jp.
authors.forename: Yuji
authors.initials: Y
authors.lastname: Miyamoto
authors.affiliation: Department of Rehabilitation, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan.
authors.forename: Domen
authors.initials: D
authors.lastname: Kazuhisa
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001021:Aortic Valve / Q000601:surgery*; D004185:Disability Evaluation; D005260:Female; D016330:Frail Elderly; D015577:Geriatric Assessment / Q000379:methods*; D006350:Heart Valve Prosthesis; D019918:Heart Valve Prosthesis Implantation / Q000534:rehabilitation*; D006760:Hospitalization; D006801:Humans; D057187:Independent Living; D007902:Length of Stay / Q000706:statistics & numerical data; D008297:Male; D010351:Patient Discharge; D011300:Preoperative Care / Q000379:methods; D012189:Retrospective Studies; D016896:Treatment Outcome
keywords: Aortic valve replacement; Frailty; Functional independence measure