Enumeration of platelets using a model B counter.

• DOI: 10.1136/jcp.22.1.107
• Publication Date: 2007-06-09T04:50:46Z
• Authors: E E Mayne; J M Carville
• Keywords: Blood Platelets; Blood Cell Count; Micrococcus

<h3>Objective</h3> To determine the short- and midterm outcome of arterial switch operation (ASO) in infants with normal abnormal coronary artery patterns. <h3>Methods</h3> A retrospective analysis was conducted experience ASO at one institution over span 20 years from 1985 through 2005. Two hundred eight consecutive ASOs were performed by same surgeon for transposition double-outlet ventricle complexes. Of 208 patterns, 159 (76%) 49 (24%) abnormal, respectively. These classified into 4 groups: Type I (<i>n</i> = 159, 76%) had typical dual arrangement (1AD, Cx; 2R), II 26, 13%) a system other than typical, III 11, 5%) single ostium system, IV 12, 6%) included any pattern that an intramural course or commissural take-off. The primary end points long-term mortality. <h3>Results</h3> There no difference weight, gender, preoperative inotropic support, presence VSD RVOTO between groups. total 16/208 deaths (7.7%), mean follow-up time 7.2 (range 3 months to 19 years). significant early mortality rate 6 out (3.7%) (6.1%) (<i>p</i> .29). Similarly, there late normal, (2.5%), (6.1%), groups .12). <h3>Conclusions</h3> existence patterns is not risk factor after ASO. impact on ventricular function awaits determination.