Major abdominal surgery without preoperative adequate oral intake with some cephalosporins may result in vitamin K deficiency and bleeding tendency. The aim of this study is to clarify the effect of preoperative fasting on postoperative coagulation factors. We prospectively examined 16 patients who underwent major abdominal surgery. Patients were divided into a preoperative fast group (Group F, n = 7, mean period of preoperative fasting 8.7 days) and a control group (Group C, n = 9). We did not administer vitamin K and initiated feeding after the seventh postoperative day. In Group C, prothrombin time (PT) and Factors II, VII, IX, and X levels were decreased after the surgery to within normal limits. In Group F, the PT and Factors II, VII, and X levels were decreased after the surgery. Abnormal lower levels of PT and Factors II, VII, and X were seen in 67, 33, 67, and 67 per cent of patients after the surgery, respectively. Factors VII and X levels were higher than in Group C by the third postoperative day. The protein induced by vitamin K absence or antagonist-II levels in Group F were increased at all postoperative points. Clinicians should realize that preoperative fasting for as little as 1 week can induce precoagulopathy, resulting in postoperative coagulopathy after major surgery.
We have investigated these scaling
Laws at leading order in two previous papers. In this work we investigate
Further consequences of the scaling laws, trying to identify potential
Signatures that could be studied by lattice simulations. From the first
Derivative of the form factor we derive the beha...
We found that patients with PID were more likely to have MI than the control population after adjusting for potential confounders [adjusted hazard ratio (HR), 1.86, 95% confidence interval (CI), 1.23-2.81]. When stratified by patient's age, the adjusted HR for MI was 2.09 (95% CI, 1.24-3.52) for pat...
We present new algorithms for the problem of multiple string matching of
Gapped patterns, where a gapped pattern is a sequence of strings such that
There is a gap of fixed length between each two consecutive strings. The
Problem has applications in the discovery of transcription factor binding sites...
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