BACKGROUND AND OBJECTIVES Preoperative tests aim to reduce morbidity and mortality of surgical patients, cost of perioperative care, and preoperative anxiety. Clinical evaluation allows defining the need for additional tests and strategies to reduce the surgical-anesthetic risk. The aim of this study was to evaluate the benefit of routine preoperative testing of low-risk patients undergoing min...

background: iran has a large group of patients with severe congenital factor xiii deficiency (fxiiid) and trp187arg mutation that is most disease causing mutation of fxiii in the world is only observed in southeast of iran with 352 patients with fxiiid. 743 patients with fxiiid was observed in 17 provinces of iran but tehran city with more than 12 million population has no any registered patien...

BACKGROUND Unmanned Aerial Systems (UAS or drones) could potentially be used for the routine transport of small goods such as diagnostic clinical laboratory specimens. To the best of our knowledge, there is no published study of the impact of UAS transportation on laboratory tests. METHODS Three paired samples were obtained from each one of 56 adult volunteers in a single phlebotomy event (33...

Clinical and Laboratory Standard Institute guidelines require that routine coagulation tests are performed with platelet-poor plasma (< 10,000 platelets/microL) and prepared from whole citrated blood centrifuged at low speed for 10-30 minutes. To compare results obtained from plasma centrifuged for 5 minutes at 3000 g or for 10 minutes at 2000 g, 46 blood samples from normal healthy adults were...

Coagulation testing is employed widely prior to open surgery and invasive procedures. This is based on the assumption that such testing is of clinical value in the prediction of bleeding. In order to improve the clinical understanding of the potential limitations of first-line coagulation tests used in this way, we have systematically reviewed the literature that addresses the value of routine ...

Background: Paediatric cardiac surgery has developed dramatically during the last decades. Today, a wide range of patients is operated on-from premature neonates to grown up children with congenital heart disease. Excessive bleeding during and after cardiac surgery is still common, and it is one of the most serious complications. In this thesis, we consider different aspects of monitoring of co...

Surgical revascularization of the heart (CABG - coronary artery bypass grafting) is one way of treating coronary heart disease. Bleeding is one of the serious and frequent complications of heart surgery and can result in increased mortality and morbidity. Hemostasis disorder may be secondary consequences of surgical bleeding, preoperative anticoagulant therapy, and the use of cardiopulmonary by...

Twenty male patients with Korean hemorrhagic fever were evaluated with thrombelastography (TEG) to assess the changes in coagulation system, and the results were compared with those of conventional coagulation tests. Procoagulant activity in the plasma was determined by comparing the reaction time "r" of the normal plasma and that of the mixture of equal parts of the normal plasma and the patie...