PMID- 8054768 OWN - NLM STAT- MEDLINE DCOM- 19940913 LR - 20190920 IS - 0941-1291 (Print) IS - 0941-1291 (Linking) VI - 24 IP - 1 DP - 1994 TI - The effect of myocardial preservation technique on supraventricular tachycardia following aortic valve replacement. PG - 1-5 AB - We studied 100 patients who underwent an isolated aortic valve replacement (AVR) between 1974 and 1991. The patients were divided into the following two groups and compared: group A, which consisted of 40 patients operated on before 1978 who underwent continuous left coronary perfusion with blood; and group B, which consisted of 60 patients operated on after 1979 in whom St. Thomas solution was used in combination with topical cardiac cooling. Moreover, we divided the group B patients into two subgroups: group B1, who underwent AVR before 1986 during which we administered St. Thomas solution with ice slush every 30 min; and group B2, who had AVR after 1986 in which we used St. Thomas solution with a cold saline (4 degrees C) solution and treated with a small amount of slushed ice very 15 min. The incidence of supraventricular tachycardias was 15% in group A, 50% in group B1, and 15% in group B2. The severity of preoperative New York Heart Association (NYHA) functional class, the type of valve lesions, cardiothoracic ratio, left ventricular function, aortic clamp time, bypass time, and use of drugs did not correlate with the incidence of supraventricular tachycardias in either group A or B. In group B2 patients, we paid a lot of attention to cooling the right atrium as well as the left ventricle by immersing the whole heart using a 4 degrees C saline solution, which led to a remarkable reduction of the incidence of supraventricular tachycardia. This fact indicates that right atrial preservation is one of the most important factors for reducing the incidence of supraventricular tachycardia. FAU - Shigenobu, M AU - Shigenobu M AD - Department of Cardiovascular Surgery, Okayama University Medical School, Japan. FAU - Teramoto, S AU - Teramoto S LA - eng PT - Comparative Study PT - Journal Article PL - Japan TA - Surg Today JT - Surgery today JID - 9204360 RN - 0 (Bicarbonates) RN - 0 (St. Thomas' Hospital cardioplegic solution) RN - 451W47IQ8X (Sodium Chloride) RN - 660YQ98I10 (Potassium Chloride) RN - I38ZP9992A (Magnesium) RN - M4I0D6VV5M (Calcium Chloride) SB - IM MH - Aortic Valve/*surgery MH - Bicarbonates/administration & dosage MH - Blood MH - Calcium Chloride/administration & dosage MH - Female MH - Heart Arrest, Induced/adverse effects/*methods MH - *Heart Valve Prosthesis MH - Humans MH - Hypothermia, Induced MH - Magnesium/administration & dosage MH - Male MH - Middle Aged MH - Myocardial Reperfusion MH - Postoperative Complications/prevention & control MH - Potassium Chloride/administration & dosage MH - Sodium Chloride/administration & dosage MH - Tachycardia, Supraventricular/*etiology/physiopathology/prevention & control EDAT- 1994/01/01 00:00 MHDA- 1994/01/01 00:01 CRDT- 1994/01/01 00:00 PHST- 1994/01/01 00:00 [pubmed] PHST- 1994/01/01 00:01 [medline] PHST- 1994/01/01 00:00 [entrez] AID - 10.1007/BF01676876 [doi] PST - ppublish SO - Surg Today. 1994;24(1):1-5. doi: 10.1007/BF01676876.