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CARDIAC CRYOSURGERY: EFFECTS OF MYOCARDIAL TEMPERATURE ON CRYOLESION SIZE.

Author(s) : HOLMAN W. L.

Type of article: Article

Summary

THE STUDY WAS DESIGNED TO DEVELOP A METHOD FOR ELECTIVELY INCREASING OR DECREASING THE DIMENSIONS AND VOLUME OF CRYOLESIONS BY ALTERING ADJACENT MYOCARDIAL TEMPERATURES. DOGS WERE SUBJECTED TO CARDIOPULMONARY BYPASS, AND STANDARD CRYOTHERMIC: EXPOSURES 4 MILLIMETRE CRYOPROBE, 213 K (-60 DEG C) FOR 120 SECONDS, WERE USED TO CREATE CRYOLESIONS ON THE LEFT VENTRICULAR FREE WALL. THE DIMENSIONS AND VOLUMES OF CRYOLESIONS AT 310, 305 AND 279 TO 285 K (37, 32 AND 6 TO 12 DEG C) (HYPOTHERMIC CARDIOPLEGIC ARREST) WERE COMPARED. CRYOLESIONS CREATED AT 279 TO 285 K WITH THE DOGS UNDER CARDIOPLEGIC ARREST WERE SIGNIFICANTLY LARGER THAN CRYOLESIONS CREATED AT 310 OR 305 K IN THE PERFUSED BEATING HEART.

Details

  • Original title: CARDIAC CRYOSURGERY: EFFECTS OF MYOCARDIAL TEMPERATURE ON CRYOLESION SIZE.
  • Record ID : 1984-1705
  • Languages: English
  • Source: Cryosurgery - vol. 93 - n. 2
  • Publication date: 1983
  • Document available for consultation in the library of the IIR headquarters only.

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