[Coagulation disorders following severe trauma: surgeon's role in prevention]. / Turbe della coagulazione nel trauma severo: il ruolo del chirurgo nella prevenzione.

INTRODUCTION: Severe trauma must be considered a "systemic disease" that could lead to severe systemic complications. PHYSIOPATHOLOGIC IMPLICATIONS: Coagulation disorders are present in most trauma patients as hemorrhagic disorder, thrombosis, or like in DIC, with both coexistent phenomenon. Trauma determine the activations of intrinsic and extrinsic coagulation pathways, and of platelets. Intrinsic pathway activation induce a pro-coagulant function and the activation of fibrinolytic system. Both system activation explain low incidence of deep venous thrombosis. Post-traumatic activation of extrinsic coagulation lead to thrombin and fibrin production. In trauma patients platelets activation is related to endothelial damage, exposition of collagen, interaction with PAF and presence of microorganisms. Post-traumatic DIC is characterized by procoagulant factors activation, with intravascular deposit of fibrin and thrombosis, and by hemorrhagic disorders due to consumption of platelet and procoagulant factors. Lower levels of antithrombin III, in trauma patients, are strictly related to severity of damage and shock. Coagulation disorders related to sepsis, that often complicate trauma, are added to those determined by trauma, with a negative synergic effect. Medical treatment with massive infusion of colloid and crystalloid solution, and fluid, and massive transfusion of plasma and red blood cells can determine dilutional thrombocytopenia, reduced activity of coagulation factors and reduced haemostatic activity of RBC due to excessive haemodilution--Hct <20%. PREVENTION STRATEGY: To avoid post-traumatic coagulation disorders is important to prevent sepsis, thrombocytopenia and reduced activity of coagulation factors and of RBC, as well as prevent and immediately treat shock. The early use of high dose antithrombin concentrate, is important to prevent DIC and MOFS, and administer subcutaneous or intravenous heparin, in absence of hemorrhagic disorders that contraindicate its use.

[The role of palliation in peri-ampullar tumors in the elderly]. / Il ruolo della palliazione nei tumori periampollari in età geriatrica.

Authors wonder about the actual part of the palliative practices in periampullar cancers of the geriatric age, and the choice criteria of the different surgical options that are practicable. They reaffirm that the common radical operation is the pancreaticoduodenectomy, even if, as it is verifiable in the relevant literature and in our series of cases, it is practicable only a few times. The necessity of amending the toxic-septic condition of the neoplastic cholestasis, which certainly is more unfavourable during the geriatric age, gives to the palliative procedures a better role, because few patients could be treated with a curative intention. Authors report their experience and their results about the icterus regression, mortality, morbidity and the average survival rate. About the surgical palliative options of the bilio-digestive shunts, they give the same importance to the gallbladder jejunostomy and to the common bile duct jejunostomy, granting to the first their preference in the geriatric age for the simplest and rapid execution. They point out the necessity of the gastrojejunostomy in all the present or incipient jejuno's obstruction, because of the surgical action importance, and to avoid another operation. They give, even in the geriatric age, their preference to the surgical palliative treatments, proposing to reserve the endoscopic and radiologic practices to the patient undergoing an operation for the precarious general state, for the high operating risk and the modest residual life. In fact, the non surgical treatments are suitable to amend the neoplastic cholestasis, but they aren't equivalent to the surgical palliative, that is more effective for the greater survivals, a better life's quality, a smaller mortality and morbidity.

[Urgent ulcerative colitis: our experience]. / Rettocolite ulcerosa in urgenza ed emergenza: nostra esperienza.

The authors refer their experience in Urgent Ulcerative Colitis. They define the various clinical maniferstations and then specify the necessary elements for a corrent nosological arrangement. About diagnosis, their confirm the inconvenience of clinical examination like as colonscopy or an opaque clysma, giving their choice to other parameters, like as clinical, hematic (PCR), microscopic and cultural of the faeces, radiological (direct abdomen radiography; abdomino-pelvic echography; abdomino-pelvic TC, better if spiral), endoscopic (rectoscopy with minimal insufflation). They explain their guideline about medical therapy, the strategy adopted in relation to its duration, the protocol of evaluation during the administration period and the predictive sighs of its possible failure. After having precised the surgical indications, they stop a little about the timing of a surgical interventation, underlining its primary importance. In the range of a surgical strategy. They give their choice to the total colectomy with associated ioleostomy for its less incidence of complications and mortality versus proctocolectomy, reserving this last one to that cases with irreprensible rectal hemorragy, with preservation of the anal canal for a possible delayed ileo-anal anastomosis. They also think, at last, that after an Urgent Total Colectomy, the immediate ileo-rectum anastomosis could have an high risk of dehiscence of the anastomosis itself and so it must be reserved only to that selected cases which offer local and general guarantees of solidity of the anastomosis and it must be preferably done joinly whit a loop ileostomy at the bottom of the anastomosis itself.