What is the clinical evidence from this study?

Study design: Cohort. Population: Narrow aortic roots requiring aortic valve replacement (n=80). Intervention: Prognostic factors (aortic cross-clamp time and preoperative NYHA class). Primary outcome: 3-year survival.

What does this research mean for the field?

Aortic cross-clamp time and preoperative NYHA functional class are significant independent prognostic factors predicting 3-year survival after aortic valve replacement with a small prosthesis. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

January 1, 1986Scandinavian Journal of Thoracic and Cardiovascular Surgery

Prognostic factors in aortic valve replacement associated with narrow aortic roots:An Analysis Using the Proportional Hazard Model

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Key result

Longer cross-clamp time and higher NYHA class predict worse 3-year survival after small-prosthesis AVR.

n=80

Why the study?

What are the prognostic factors for 3-year survival in patients undergoing aortic valve replacement with a small (21 mm) Medtronic-Hall prosthesis?

Population

80 patients who underwent aortic valve replacement with a small (21 mm) Medtronic-Hall prosthesis

Design

Cohort study using proportional hazard analysis

Authors

MAMichel AbdelnoorOslo University Hospital KHKarl Victor HallOslo University Hospital SNS Nitter‐HaugeUniversity of Oslo

Discussion

Member takes

Implication

Preoperative NYHA class and aortic cross-clamp time are significant prognostic factors for survival following aortic valve replacement with a small prosthesis.

Study Design

Type

Cohort (n=80)

Structured PICO

What are the prognostic factors for 3-year survival in patients undergoing aortic valve replacement with a small (21 mm) Medtronic-Hall prosthesis?

Population

80 patients who underwent aortic valve replacement with implantation of a small (21 mm) Medtronic-Hall prosthesis over a 7.5-year period.

Exposure

Aortic valve replacement with implantation of a small (21 mm) Medtronic-Hall prosthesis

Outcome

3-year survivalhard clinical

Preoperative NYHA class and aortic cross-clamp time are significant prognostic factors for survival following aortic valve replacement with a small prosthesis.

Cite This Study

Abdelnoor et al. (1986) conducted a cohort in Narrow aortic roots requiring aortic valve replacement (n=80). Prognostic factors (aortic cross-clamp time and preoperative NYHA class) was evaluated on 3-year survival. Aortic cross-clamp time and preoperative NYHA class were significant prognostic factors for 3-year survival (ranging from 92% to 45%) after aortic valve replacement with a small prosthesis.

synapsesocial.com/papers/6aa7fb3f5a44c3b67fae5f70 https://doi.org/10.3109/14017438609105929

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Implication

Preoperative NYHA class and aortic cross-clamp time are significant prognostic factors for survival following aortic valve replacement with a small prosthesis.

Prognostic factors in aortic valve replacement associated with narrow aortic roots:An Analysis Using the Proportional Hazard Model

Discussion

Member takes

Implication

Study Design

Structured PICO

Cite This Study

Prognostic factors in aortic valve replacement associated with narrow aortic roots:An Analysis Using the Proportional Hazard Model

Discussion

Member takes

Implication

Study Design

Structured PICO

Cite This Study

Also Consider

Also Consider