Published online by Cambridge University Press: 12 January 2010
“There is perhaps more money wasted and blood unnecessarily shed in this setting than in any other in medicine.”
Sabiston's Textbook of SurgeryWhen patients are evaluated for the potential of abnormal bleeding before surgery, the intensity of screening is determined by the hemostatic challenge of the procedure and the likelihood that the patient has an underlying congenital or acquired disorder that would predispose to bleeding. The risk of bleeding associated with the type of surgical procedure ranges from low risk (lymph node biopsies, dental extractions) to moderate risk (laparotomy, thoracotomy, mastectomy) to high risk (neurosurgical, ophthalmic, plastic, cardiopulmonary bypass, prostatic, surgery to stop bleeding). A screening history should reveal if the patient has experienced any abnormal bleeding or bruising, if there is a history of an acquired medical disorder which could affect hemostasis, if family members have bled abnormally, or if the patient is taking any drugs which could interfere with hemostasis. Physical examination can also provide important information about a patient's surgical bleeding risk. Ecchymoses, petechiae, or purpura may suggest a systemic hemostatic defect. Stigmata of chronic liver disease include hepatomegaly, splenomegaly, jaundice, spider angiomas, palmar erythema, and dilated abdominal veins.
The preoperative hemostatic screening recommendations by Rapaport provide a reasonable basis for selecting laboratories for individual patients. Level 1 are patients with a reassuring history who are undergoing surgeries with only minimal potential blood loss such as excisional biopsies or dental extractions.
To save this book to your Kindle, first ensure [email protected] is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Find out more about the Kindle Personal Document Service.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.