| Careful assessment of risk: benefit should be made in individual patients before commencing therapy with ReoPro. A favourable risk: benefit has not been established in low risk patients >65 years of age.Concomitant acetylsalicylic acid and heparin therapy:ReoPro should be used as an adjunct to acetylsalicylic acid and heparin therapy. Concomitant acetylsalicylic acid therapy Acetylsalicylic acid should be administered orally at a daily dose of approximately, but not less than, 300mg.Concomitant heparin therapy for percutaneous coronary intervention Heparin Bolus Pre-PTCA If a patient's activated clotting time (ACT) is less than 200 seconds prior to the start of the PTCA procedure, an initial bolus of heparin should be given upon gaining arterial access according to the following algorithm:ACT <150 seconds: Administer 70U/kg.ACT 150-199 seconds: Administer 50U/kg.The initial heparin bolus dose should not exceed 7,000U.ACT should be checked a minimum of 2 minutes after the heparin bolus. If the ACT is <200 seconds, additional heparin boluses of 20U/kg may be administered. Should the ACT remain <200 seconds, additional 20U/kg boluses are to be given until an ACT 200 seconds is achieved.Should a situation arise where higher doses of heparin are considered clinically necessary in spite of the possibility of a greater bleeding risk, it is recommended that heparin be carefully titrated using weight-adjusted boluses and that the target ACT not exceed 300 seconds.Heparin Bolus During PTCA During the PTCA procedure, ACT should be checked every 30 minutes. If ACT is <200 seconds, additional heparin boluses of 20U/kg may be administered. Should the ACT remain <200 seconds, additional 20U/kg boluses may be given until an ACT 200 seconds is achieved. ACT should be checked prior to, and a minimum of 2 minutes after, each heparin bolus.As an alternative to giving additional boluses as described above, a continuous heparin infusion may be initiated after the initial heparin bolus doses achieve the ACT target 200 seconds at a rate of 7U/kg/hr and continued for the duration of the procedure.Heparin Infusion After PTCA Discontinuation of heparin immediately following completion of the procedure, with removal of the arterial sheath within 6 hours, is strongly recommended. In individual patients, if prolonged heparin therapy after PTCA or later sheath removal is used, then an initial infusion rate of 7U/kg/hr is recommended (see paragraph on Bleeding Precautions - Femoral Artery Access Site). In all circumstances, heparin should be discontinued at least 2 hours prior to arterial sheath removal.Concomitant heparin therapy for stabilisation of unstable angina Anticoagulation should be initiated with heparin to a target APTT of 60-85 seconds. The heparin infusion should be maintained during the ReoPro infusion. Following angioplasty, heparin management is outlined as described in the paragraph on Concomitant heparin therapy for percutaneous coronary intervention.Bleeding Precautions:Potential bleeding sites Careful attention should be paid to all potential bleeding sites, including arterial and venous puncture sites, catheter insertion sites, cut down sites, and needle puncture sites.Femoral Artery Access Site ReoPro is associated with an increase in bleeding rate, particularly at the site of arterial access for femoral artery sheath placement. The following are specific recommendations for access site care:Femoral Artery Sheath Insertion When appropriate, place only an arterial sheath for vascular access (avoid venous sheath placement). Puncture only the anterior wall of the artery or vein when establishing vascular access. The use of a through and through technique to identify the vascular structure is strongly discouraged.While Femoral Artery Sheath Is In Place Check sheath insertion site and distal pulses of affected leg(s) every 15 minutes for 1 hour, then hourly for 6 hours. Maintain complete bed rest with head of bed 30°. Maintain affected leg(s) straight via sheet tuck method or soft restraint. Medicate for back/groin pain as necessary. Educate patient on post-PTCA care via verbal instructions.Femoral Artery Sheath Removal Heparin should be discontinued at least 2 hours prior to arterial sheath removal. Check APTT or ACT prior to arterial sheath removal; do not remove sheath unless APTT 50 seconds or ACT 175 seconds. Apply pressure to access site for at least 30 minutes following sheath removal, using either manual compression or a mechanical device. Apply pressure dressing after haemostasis has been achieved.After Femoral Artery Sheath Removal Check groin for bleeding/haematoma and distal pulses every 15 minutes for the first hour or until stable, then hourly for 6 hours following sheath removal. Continue complete bed rest with head of bed 30° and affected leg(s) straight for 6-8 hours following femoral artery sheath removal, 6-8 hours following discontinuation of ReoPro, or 4 hours following discontinuation of heparin, whichever is later. Remove pressure dressing prior to ambulation. Continue to medicate for discomfort.Management of Femoral Access Site Bleeding/Haematoma Formation In the event of groin bleeding, with or without haematoma formation, the following procedures are recommended: Lower head of bed to 0°. Apply manual pressure/compression device until haemostasis has been achieved. Any haematoma should be measured and monitored for enlargement. Change pressure dressing as needed. If heparin is being given, obtain APTT and adjust heparin as needed. Maintain intravenous access if sheath has been removed.If groin bleed continues or the haematoma expands during ReoPro infusion, despite the above measures, the ReoPro infusion should be immediately discontinued and the arterial sheath removed according to the guidelines listed above. After sheath removal, intravenous access should be maintained until bleeding is controlled (see paragraph on Transfusion to restore platelet function).Retroperitoneal Bleeding ReoPro is associated with an increased risk of retroperitoneal bleeding in association with femoral vascular puncture. The use of venous sheaths should be minimised and only the anterior wall of the artery or vein should be punctured when establishing vascular access (see paragraph on Bleeding Precautions - Femoral Artery Access Site).Pulmonary (Mostly Alveolar) Haemorrhage ReoPro has rarely been associated with pulmonary (mostly alveolar) haemorrhage. This can present with any or all of the following in close association with ReoPro administration: hypoxemia, alveolar infiltrates on chest x-ray, haemoptysis, or an unexplained drop in haemoglobin. If confirmed, ReoPro and all anticoagulant and other antiplatelet medicinal products should immediately be discontinued.GI Bleeding Prophylaxis In order to prevent spontaneous GI bleeding, it is recommended that patients are pretreated with H2-histamine receptor antagonists or liquid antacids. Anti-emetics should be given as needed to prevent vomiting.General Nursing Care Unnecessary arterial and venous punctures, intramuscular injections, routine use of urinary catheters, nasotracheal intubation, nasogastric tubes, and automatic blood pressure cuffs should be avoided. When obtaining intravenous access, non-compressible sites (e.g., subclavian or jugular veins) should be avoided. Sodium chloride solution or heparin locks should be considered for blood drawing. Vascular puncture sites should be documented and monitored. Gentle care should be provided when removing dressings.Patient Monitoring Before administration of ReoPro, platelet count, ACT, prothrombin time (PT), and APTT should be measured to identify pre-existing coagulation abnormalities. Additional platelet counts should be taken 2-4 hours following the bolus dose and at 24 hours. Haemoglobin and haematocrit measurements should be obtained prior to the ReoPro administration, at 12 hours following the ReoPro bolus injection, and again at 24 hours following the bolus injection. Twelve lead electrocardiograms (ECG) should be obtained prior to the bolus injection of ReoPro, and repeated once the patient has returned to the hospital ward from the catheterization laboratory, and at 24 hours after the bolus injection of ReoPro. Vital signs (including blood pressure and pulse) should be obtained hourly for the first 4 hours following the ReoPro bolus injection, and then at 6, 12, 18, and 24 hours following the ReoPro bolus injection.Thrombocytopenia Thrombocytopenia, including severe thrombocytopenia, has been observed with ReoPro administration (See section 4.8). In clinical studies, most cases of severe thrombocytopenia (< 50,000 cells/μL) occurred within the first 24 hours of ReoPro administration.To evaluate the possibility of thrombocytopenia, platelet counts should be monitored prior to treatment, 2 to 4 hours following the bolus dose of ReoPro and at 24 hours. If a patient experiences an acute platelet decrease, additional platelet counts should be determined. These platelet counts should be drawn in three separate tubes containing ethylenediaminetetraacetic acid (EDTA), citrate and heparin, respectively, to exclude pseudothrombocytopenia, due to in vitro anticoagulant interaction. If true thrombocytopenia is verified, ReoPro should be immediately discontinued and the condition appropriately monitored and treated. A daily platelet count should be obtained until it returns to normal. If a patient's platelet count drops to 60,000 cells/µL, heparin and acetylsalicylic acid should be discontinued. If a patient's platelet count drops below 50,000 cells/µL, transfusion of platelets should be considered, especially if the patient is bleeding and/or invasive procedures are planned or ongoing. If the patient's platelet count drops below 20,000 cells/µL, platelets should be transfused. The decision to use platelet transfusion should be based upon clinical judgment on an individual basis. Thrombocytopenia has been observed at higher rates following readministration (see paragraph on Readministration).Transfusion to restore platelet function In the event of serious uncontrolled bleeding or the need for emergency surgery, ReoPro should be discontinued. In the majority of patients, bleeding time returns to normal within 12 hours. If bleeding time remains prolonged and/or there is a marked inhibition of platelet function and/or if rapid haemostasis is required and/or in case(s) where haemostasis is not adequately restored, consideration should be given to seeking advice of a haematologist experienced in the diagnosis and management of bleeding disorders. Transfusion of donor platelets has been shown to restore platelet function following ReoPro administration in animal studies and transfusions of fresh random donor platelets have been given empirically to restore platelet function in humans.When considering the need to transfuse patients, the patient's intravascular volume should be assessed. If hypovolaemic, then the intravascular volume should be adequately restored with crystalloids. In asymptomatic patients, normovolaemic anaemia (haemoglobin 7-10 g/dL) can be well tolerated; transfusion is not indicated unless a deterioration in vital signs is seen or unless the patient develops signs and symptoms. In symptomatic patients (e.g., syncope, dyspnoea, postural hypotension, tachycardia), crystalloids should be used to replace intravascular volume. If symptoms persist, the patient should receive transfusions with packed red blood cells or whole blood on a unit-by-unit basis to relieve symptoms; one unit may be sufficient. If rapid haemostasis is required, therapeutic doses of platelets may be administered (at least 5.5 x 1011 platelets). Redistribution of ReoPro from endogenous platelet receptors to platelets, which have been transfused, may take place. A single transfusion may be sufficient to reduce receptor blockade to 60% to 70% at which level platelet function is restored. Repeat platelet transfusions may be required to maintain haemostasis.Specific guidelines for access site bleeding are given above under the paragraph on Bleeding Precautions - Femoral Artery Access Site.Use of thrombolytics, anticoagulants and other antiplatelet agents Because ReoPro inhibits platelet aggregation, caution should be employed when used with other medicinal products affecting haemostasis, such as heparin, oral anticoagulants, such as warfarin, thrombolytics, and antiplatelet agents other than acetylsalicylic acid, such as dipyridamole, ticlopidine, or low molecular weight dextrans (see section 4.5).Data in patients receiving thrombolytics suggest an increase in the risk of bleeding when ReoPro is administered to patients treated with thrombolytics at doses sufficient to produce a systemic fibrinolytic state. Therefore, the use of ReoPro therapy for rescue angioplasty in those patients that have received systemic thrombolytic therapy should only be considered after careful consideration of the risks and benefits for each patient. The risk of bleeding and ICH appears higher the sooner ReoPro is administered after the application of the thrombolytic (see section 4.8, paragraph on Other vascular disorders).If urgent intervention is required for refractory symptoms in a patient receiving ReoPro (or who has received the medicinal product in the previous 48 hours), it is recommended that PTCA be attempted first to salvage the situation. Prior to further surgical interventions, the bleeding time should be determined and should be 12 minutes or less. Should PTCA and any other appropriate procedures fail, and should the angiographic appearance suggest that the aetiology is due to thrombosis, consideration may be given to the administration of adjunctive thrombolytic therapy via the intracoronary route. A systemic fibrinolytic state should be avoided if at all possible.Hypersensitivity Hypersensitivity reactions should be anticipated whenever protein solutions such as ReoPro are administered. Adrenaline, dopamine, theophylline, antihistamines and corticosteroids should be available for immediate use. If symptoms of an allergic reaction or anaphylaxis appear, the infusion should be stopped immediately. Subcutaneous administration of 0.3 to 0.5 mL of aqueous adrenaline (1:1000 dilution), and use of corticosteroids, respiratory assistance and other resuscitative measures are essential.Hypersensitivity or allergic reactions have been observed rarely following treatment with ReoPro. Anaphylactic reactions (sometimes fatal) have been reported very rarely and may potentially occur at any time during administration.Readministration Administration of ReoPro may result in the formation of human anti-chimeric antibody (HACA) that could potentially cause allergic or hypersensitivity reactions (including anaphylaxis), thrombocytopenia, or diminished benefit upon readministration (see section 4.8, paragraph on Readministration). Available evidence suggests that human antibodies to other monoclonal antibodies do not cross-react with ReoPro.Thrombocytopenia was observed at higher rates in a readministration study than in the Phase III studies of first-time administration, suggesting that readministration may be associated with an increased incidence and severity of thrombocytopenia (see section 4.8, paragraph on Readministration).Renal Disease Benefits may be reduced in patients with renal disease. The use of ReoPro in patients with severe renal failure should only be considered after careful appraisal of the risks and benefits. Because the potential risk of bleeding is increased in patients with severe renal disease, patients should be more frequently monitored for bleeding. In the event serious bleeding occurs, platelet transfusion should be considered (see paragraph on Bleeding Precautions - Transfusion to restore platelet function). In addition, the bleeding precautions as described above should be taken into consideration.Use of ReoPro in patients receiving dialysis is contra-indicated (see section 4.3).Paediatric patients or patients older than 80 Years: Paediatric patients or patients older than 80 years have not been studied. | |