The Journal of Thoracic and Cardiovascular Surgery, Vol 69, 247-254, Copyright © 1975 by The American Association for Thoracic Surgery and The Western Thoracic Surgical Association
Mitral valve replacement with the Smeloff-Cutter prosthesis. Experience with 154 patients and comparison with results of replacement with a Starr-Edwards prosthesis
HA Oxman, DC Connolly and FH Ellis Jr
Mitral valve replacement with the Smeloff-Cutter (S-C) prothesis was
performed in 154 patients between September, 1965, and January, 1970. In
84, only the mitral valve was replaced; in the remainder, other valves were
reconstructed or replaced. The hospital and late mortality rates for
isolated replacement were 6 and 25 per cent, respectively. Comparable
figures for the Starr-Edwards (S-E) (Models 6000 and 6120) prosthesis
during this period were 11 and 23 per cent. Similar rates of
thromboembolism were associated with the use of either prosthesis in
surviving patients (27 per cent for the S-C valve and 30 per cent for the
S-E valve). In spite of the acceptable hospital mortality rate for the S-C
valve, it is not now considered suitable for clinical use because of the
high late mortality rate and the high risk of thromboembolism that
accompany its use.