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result sql = Sepsis-associated microvascular dysfunction measured by peripheral arterial tonometry: an observational study.
Sepsis-associated microvascular dysfunction measured by peripheral arterial tonometry: an observational study.
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char = d;code = 100
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = m;code = 109
char = e;code = 101
char = a;code = 97
char = s;code = 115
char = u;code = 117
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = d;code = 100
char = i;code = 105
char = s;code = 115
char = e;code = 101
char = a;code = 97
char = s;code = 115
char = e;code = 101
char = ;code = 32
char = s;code = 115
char = e;code = 101
char = v;code = 118
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = t;code = 116
char = y;code = 121
char = ,;code = 44
char = ;code = 32
char = p;code = 112
char = l;code = 108
char = a;code = 97
char = s;code = 115
char = m;code = 109
char = a;code = 97
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = n;code = 110
char = c;code = 99
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = r;code = 114
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = L;code = 76
char = -;code = 45
char = a;code = 97
char = r;code = 114
char = g;code = 103
char = i;code = 105
char = n;code = 110
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = (;code = 40
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = s;code = 115
char = u;code = 117
char = b;code = 98
char = s;code = 115
char = t;code = 116
char = r;code = 114
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = n;code = 110
char = i;code = 105
char = t;code = 116
char = r;code = 114
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = o;code = 111
char = x;code = 120
char = i;code = 105
char = d;code = 100
char = e;code = 101
char = ;code = 32
char = s;code = 115
char = y;code = 121
char = n;code = 110
char = t;code = 116
char = h;code = 104
char = a;code = 97
char = s;code = 115
char = e;code = 101
char = );code = 41
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = b;code = 98
char = i;code = 105
char = o;code = 111
char = m;code = 109
char = a;code = 97
char = r;code = 114
char = k;code = 107
char = e;code = 101
char = r;code = 114
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = e;code = 101
char = n;code = 110
char = d;code = 100
char = o;code = 111
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = l;code = 108
char = i;code = 105
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = .;code = 46
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
char = <;code = 60
char = b;code = 98
char = >;code = 62
char = R;code = 82
char = E;code = 69
char = S;code = 83
char = U;code = 85
char = L;code = 76
char = T;code = 84
char = S;code = 83
char = ;code = 32
char = :;code = 58
char = ;code = 32
char = <;code = 60
char = /;code = 47
char = b;code = 98
char = >;code = 62
char = B;code = 66
char = a;code = 97
char = s;code = 115
char = e;code = 101
char = l;code = 108
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = ;code = 32
char = h;code = 104
char = y;code = 121
char = p;code = 112
char = e;code = 101
char = r;code = 114
char = a;code = 97
char = e;code = 101
char = m;code = 109
char = i;code = 105
char = a;code = 97
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = d;code = 100
char = e;code = 101
char = x;code = 120
char = ;code = 32
char = (;code = 40
char = R;code = 82
char = H;code = 72
char = -;code = 45
char = P;code = 80
char = A;code = 65
char = T;code = 84
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = d;code = 100
char = e;code = 101
char = x;code = 120
char = );code = 41
char = ,;code = 44
char = ;code = 32
char = m;code = 109
char = e;code = 101
char = a;code = 97
char = s;code = 115
char = u;code = 117
char = r;code = 114
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = e;code = 101
char = n;code = 110
char = d;code = 100
char = o;code = 111
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = l;code = 108
char = i;code = 105
char = u;code = 117
char = m;code = 109
char = -;code = 45
char = d;code = 100
char = e;code = 101
char = p;code = 112
char = e;code = 101
char = n;code = 110
char = d;code = 100
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = m;code = 109
char = i;code = 105
char = c;code = 99
char = r;code = 114
char = o;code = 111
char = v;code = 118
char = a;code = 97
char = s;code = 115
char = c;code = 99
char = u;code = 117
char = l;code = 108
char = a;code = 97
char = r;code = 114
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = i;code = 105
char = t;code = 116
char = y;code = 121
char = ;;code = 59
char = ;code = 32
char = (;code = 40
char = m;code = 109
char = e;code = 101
char = a;code = 97
char = n;code = 110
char = ;code = 32
char = [;code = 91
char = 9;code = 57
char = 5;code = 53
char = %;code = 37
char = ;code = 32
char = C;code = 67
char = I;code = 73
char = ];code = 93
char = );code = 41
char = ;code = 32
char = w;code = 119
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = l;code = 108
char = o;code = 111
char = w;code = 119
char = e;code = 101
char = s;code = 115
char = t;code = 116
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = s;code = 115
char = e;code = 101
char = v;code = 118
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = s;code = 115
char = e;code = 101
char = p;code = 112
char = s;code = 115
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = (;code = 40
char = 1;code = 49
char = .;code = 46
char = 5;code = 53
char = 7;code = 55
char = ;code = 32
char = [;code = 91
char = 1;code = 49
char = .;code = 46
char = 4;code = 52
char = 3;code = 51
char = -;code = 45
char = 1;code = 49
char = .;code = 46
char = 7;code = 55
char = 0;code = 48
char = ];code = 93
char = );code = 41
char = ,;code = 44
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = m;code = 109
char = e;code = 101
char = d;code = 100
char = i;code = 105
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = s;code = 115
char = e;code = 101
char = p;code = 112
char = s;code = 115
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = w;code = 119
char = i;code = 105
char = t;code = 116
char = h;code = 104
char = o;code = 111
char = u;code = 117
char = t;code = 116
char = ;code = 32
char = o;code = 111
char = r;code = 114
char = g;code = 103
char = a;code = 97
char = n;code = 110
char = ;code = 32
char = f;code = 102
char = a;code = 97
char = i;code = 105
char = l;code = 108
char = u;code = 117
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = (;code = 40
char = 1;code = 49
char = .;code = 46
char = 8;code = 56
char = 5;code = 53
char = ;code = 32
char = [;code = 91
char = 1;code = 49
char = .;code = 46
char = 6;code = 54
char = 7;code = 55
char = -;code = 45
char = 2;code = 50
char = .;code = 46
char = 0;code = 48
char = 3;code = 51
char = ];code = 93
char = );code = 41
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = h;code = 104
char = i;code = 105
char = g;code = 103
char = h;code = 104
char = e;code = 101
char = s;code = 115
char = t;code = 116
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char = i;code = 105
char = n;code = 110
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = n;code = 110
char = t;code = 116
char = r;code = 114
char = o;code = 111
char = l;code = 108
char = s;code = 115
char = ;code = 32
char = (;code = 40
char = 2;code = 50
char = .;code = 46
char = 0;code = 48
char = 5;code = 53
char = ;code = 32
char = [;code = 91
char = 1;code = 49
char = .;code = 46
char = 9;code = 57
char = 1;code = 49
char = -;code = 45
char = 2;code = 50
char = .;code = 46
char = 1;code = 49
char = 9;code = 57
char = ];code = 93
char = );code = 41
char = ;;code = 59
char = ;code = 32
char = P;code = 80
char = ;code = 32
char = <;code = 60
char = ;code = 32
char = 0;code = 48
char = .;code = 46
char = 0;code = 48
char = 0;code = 48
char = 0;code = 48
char = 0;code = 48
char = 1;code = 49
char = .;code = 46
char = ;code = 32
char = I;code = 73
char = n;code = 110
char = d;code = 100
char = e;code = 101
char = p;code = 112
char = e;code = 101
char = n;code = 110
char = d;code = 100
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = e;code = 101
char = d;code = 100
char = i;code = 105
char = c;code = 99
char = t;code = 116
char = o;code = 111
char = r;code = 114
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = b;code = 98
char = a;code = 97
char = s;code = 115
char = e;code = 101
char = l;code = 108
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = R;code = 82
char = H;code = 72
char = -;code = 45
char = P;code = 80
char = A;code = 65
char = T;code = 84
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = d;code = 100
char = e;code = 101
char = x;code = 120
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = s;code = 115
char = e;code = 101
char = p;code = 112
char = s;code = 115
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = w;code = 119
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = A;code = 65
char = P;code = 80
char = A;code = 65
char = C;code = 67
char = H;code = 72
char = E;code = 69
char = ;code = 32
char = I;code = 73
char = I;code = 73
char = ;code = 32
char = s;code = 115
char = c;code = 99
char = o;code = 111
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = m;code = 109
char = e;code = 101
char = a;code = 97
char = n;code = 110
char = ;code = 32
char = a;code = 97
char = r;code = 114
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = s;code = 115
char = u;code = 117
char = r;code = 114
char = e;code = 101
char = ,;code = 44
char = ;code = 32
char = b;code = 98
char = u;code = 117
char = t;code = 116
char = ;code = 32
char = n;code = 110
char = o;code = 111
char = t;code = 116
char = ;code = 32
char = p;code = 112
char = l;code = 108
char = a;code = 97
char = s;code = 115
char = m;code = 109
char = a;code = 97
char = ;code = 32
char = L;code = 76
char = -;code = 45
char = a;code = 97
char = r;code = 114
char = g;code = 103
char = i;code = 105
char = n;code = 110
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = m;code = 109
char = a;code = 97
char = r;code = 114
char = k;code = 107
char = e;code = 101
char = r;code = 114
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = e;code = 101
char = n;code = 110
char = d;code = 100
char = o;code = 111
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = l;code = 108
char = i;code = 105
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = .;code = 46
char = ;code = 32
char = L;code = 76
char = o;code = 111
char = w;code = 119
char = ;code = 32
char = b;code = 98
char = a;code = 97
char = s;code = 115
char = e;code = 101
char = l;code = 108
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = R;code = 82
char = H;code = 72
char = -;code = 45
char = P;code = 80
char = A;code = 65
char = T;code = 84
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = d;code = 100
char = e;code = 101
char = x;code = 120
char = ;code = 32
char = w;code = 119
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = s;code = 115
char = i;code = 105
char = g;code = 103
char = n;code = 110
char = i;code = 105
char = f;code = 102
char = i;code = 105
char = c;code = 99
char = a;code = 97
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char = t;code = 116
char = l;code = 108
char = y;code = 121
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char = c;code = 99
char = o;code = 111
char = r;code = 114
char = r;code = 114
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char = l;code = 108
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = d;code = 100
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char = w;code = 119
char = i;code = 105
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = a;code = 97
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char = i;code = 105
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char = c;code = 99
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = s;code = 115
char = e;code = 101
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = S;code = 83
char = O;code = 79
char = F;code = 70
char = A;code = 65
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char = s;code = 115
char = c;code = 99
char = o;code = 111
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = o;code = 111
char = v;code = 118
char = e;code = 101
char = r;code = 114
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char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = f;code = 102
char = i;code = 105
char = r;code = 114
char = s;code = 115
char = t;code = 116
char = ;code = 32
char = 2;code = 50
char = -;code = 45
char = 4;code = 52
char = ;code = 32
char = d;code = 100
char = a;code = 97
char = y;code = 121
char = s;code = 115
char = ;code = 32
char = (;code = 40
char = r;code = 114
char = ;code = 32
char = =;code = 61
char = ;code = 32
char = -;code = 45
char = 0;code = 48
char = .;code = 46
char = 3;code = 51
char = 7;code = 55
char = ,;code = 44
char = ;code = 32
char = P;code = 80
char = ;code = 32
char = =;code = 61
char = ;code = 32
char = 0;code = 48
char = .;code = 46
char = 0;code = 48
char = 2;code = 50
char = );code = 41
char = .;code = 46
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
char = <;code = 60
char = b;code = 98
char = >;code = 62
char = C;code = 67
char = O;code = 79
char = N;code = 78
char = C;code = 67
char = L;code = 76
char = U;code = 85
char = S;code = 83
char = I;code = 73
char = O;code = 79
char = N;code = 78
char = S;code = 83
char = ;code = 32
char = :;code = 58
char = ;code = 32
char = <;code = 60
char = /;code = 47
char = b;code = 98
char = >;code = 62
char = E;code = 69
char = n;code = 110
char = d;code = 100
char = o;code = 111
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = l;code = 108
char = i;code = 105
char = u;code = 117
char = m;code = 109
char = -;code = 45
char = d;code = 100
char = e;code = 101
char = p;code = 112
char = e;code = 101
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char = d;code = 100
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = m;code = 109
char = i;code = 105
char = c;code = 99
char = r;code = 114
char = o;code = 111
char = v;code = 118
char = a;code = 97
char = s;code = 115
char = c;code = 99
char = u;code = 117
char = l;code = 108
char = a;code = 97
char = r;code = 114
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = i;code = 105
char = t;code = 116
char = y;code = 121
char = ;code = 32
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = i;code = 105
char = m;code = 109
char = p;code = 112
char = a;code = 97
char = i;code = 105
char = r;code = 114
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = o;code = 111
char = p;code = 112
char = o;code = 111
char = r;code = 114
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = s;code = 115
char = e;code = 101
char = p;code = 112
char = s;code = 115
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = s;code = 115
char = e;code = 101
char = v;code = 118
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = t;code = 116
char = y;code = 121
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = s;code = 115
char = u;code = 117
char = g;code = 103
char = g;code = 103
char = e;code = 101
char = s;code = 115
char = t;code = 116
char = s;code = 115
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = c;code = 99
char = r;code = 114
char = e;code = 101
char = a;code = 97
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result sql = INTRODUCTION : Sepsis has a high mortality despite advances in management. Microcirculatory and endothelial dysfunction contribute to organ failure, and better tools are needed to assess microcirculatory responses to adjunctive therapies. We hypothesised that peripheral arterial tonometry (PAT), a novel user-independent measure of endothelium-dependent microvascular reactivity, would be impaired in proportion to sepsis severity and related to endothelial activation and plasma arginine concentrations.

METHODS : Observational cohort study in a 350-bed teaching hospital in tropical Australia. Bedside microvascular reactivity was measured in 85 adults with sepsis and 45 controls at baseline and 2-4 days later by peripheral arterial tonometry. Microvascular reactivity was related to measures of disease severity, plasma concentrations of L-arginine (the substrate for nitric oxide synthase), and biomarkers of endothelial activation.

RESULTS : Baseline reactive hyperaemia index (RH-PAT index), measuring endothelium-dependent microvascular reactivity; (mean [95% CI]) was lowest in severe sepsis (1.57 [1.43-1.70]), intermediate in sepsis without organ failure (1.85 [1.67-2.03]) and highest in controls (2.05 [1.91-2.19]); P < 0.00001. Independent predictors of baseline RH-PAT index in sepsis were APACHE II score and mean arterial pressure, but not plasma L-arginine or markers of endothelial activation. Low baseline RH-PAT index was significantly correlated with an increase in SOFA score over the first 2-4 days (r = -0.37, P = 0.02).

CONCLUSIONS : Endothelium-dependent microvascular reactivity is impaired in proportion to sepsis severity and suggests decreased endothelial nitric oxide bioavailability in sepsis. Peripheral arterial tonometry may have a role as a user-independent method of monitoring responses to novel adjunctive therapies targeting endothelial dysfunction in sepsis.

Publication: Crit Care 2009 ;13(5)::R155. :doi: 10.1186/cc8055.
Publication Date: 2009
Study Author(s): Davis, Joshua S;Yeo, Tsin W;Thomas, Jane H;McMillan, Mark;Darcy, Christabelle J;McNeil, Yvette R;Cheng, Allen C;Celermajer, David S;Stephens, Dianne P;Anstey, Nicholas M;
Institution: International Health Division, Menzies School of Health Research and Charles Darwin University, Rocklands Drive, Darwin, NT 0810, Australia. [email protected]
Shortcut link to this study:
INTRODUCTION : Sepsis has a high mortality despite advances in management. Microcirculatory and endothelial dysfunction contribute to organ failure, and better tools are needed to assess microcirculatory responses to adjunctive therapies. We hypothesised that peripheral arterial tonometry (PAT), a novel user-independent measure of endothelium-dependent microvascular reactivity, would be impaired in proportion to sepsis severity and related to endothelial activation and plasma arginine concentrations.

METHODS : Observational cohort study in a 350-bed teaching hospital in tropical Australia. Bedside microvascular reactivity was measured in 85 adults with sepsis and 45 controls at baseline and 2-4 days later by peripheral arterial tonometry. Microvascular reactivity was related to measures of disease severity, plasma concentrations of L-arginine (the substrate for nitric oxide synthase), and biomarkers of endothelial activation.

RESULTS : Baseline reactive hyperaemia index (RH-PAT index), measuring endothelium-dependent microvascular reactivity; (mean [95% CI]) was lowest in severe sepsis (1.57 [1.43-1.70]), intermediate in sepsis without organ failure (1.85 [1.67-2.03]) and highest in controls (2.05 [1.91-2.19]); P < 0.00001. Independent predictors of baseline RH-PAT index in sepsis were APACHE II score and mean arterial pressure, but not plasma L-arginine or markers of endothelial activation. Low baseline RH-PAT index was significantly correlated with an increase in SOFA score over the first 2-4 days (r = -0.37, P = 0.02).

CONCLUSIONS : Endothelium-dependent microvascular reactivity is impaired in proportion to sepsis severity and suggests decreased endothelial nitric oxide bioavailability in sepsis. Peripheral arterial tonometry may have a role as a user-independent method of monitoring responses to novel adjunctive therapies targeting endothelial dysfunction in sepsis.
PMID: 19778457

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