Treatment FAQ

what determines this treatment catheter-directed thrombolysis

by Nicolette Upton Published 2 years ago Updated 2 years ago

Catheter-directed thrombolysis for deep venous thrombosis is considered the basic treatment modality for intrathrombus removal. This method is preferably used in patients with iliofemoral deep venous thrombosis due to poor spontaneous recanalization in this segment, especially on the left side.

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What are the side effects of thrombolytic therapy?

  • Anxiety
  • blue lips and fingernails
  • blue or pale skin
  • blurred vision
  • chest pain or discomfort
  • chest pain, possibly moving to the left arm, neck, or shoulder
  • convulsions
  • cool, sweaty skin
  • cough
  • coughing that sometimes produces a pink frothy sputum

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What is the difference between fibrinolysis and thrombolysis?

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  • what is thrombolysis and when should it be administered
  • what is thrombolysis therapy
  • what causes thrombolysis

How to remove Ekos catheter?

  • Perform hand hygiene and open central line dressing change tray.
  • Don non-sterile gown, gloves, bouffant and mask with face shield.
  • Perform hand hygiene and prepare dressing tray aseptically using transfer forceps to add supplies
  • Open chlorhexidine swabstick and partially remove swabstick with transfer forceps
  • Open obturator and transfer to tray.

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What is Ekos procedure?

Types of blood clots treated with EKOS include:

  • Pulmonary embolism (PE), a blood clot that blocks an artery in a lung, which can be fatal.
  • Deep-vein thrombosis (DVT), a blood clot that develops in a large vein of the legs or pelvis. ...
  • Peripheral arterial occlusion, a blockage of a blood vessel in the legs, usually due to hardening of the arteries. ...

What is a catheter-directed thrombolysis?

Catheter-directed thrombolysis (CDT) involves percutaneous placement of a catheter into a thrombosed vein with subsequent prolonged infusion of a thrombolytic agent directly into the targeted segment of clot.

When is a catheter-directed thrombolysis used?

Catheter-directed thrombolysis can be used to treat DVTs as an adjunct to medical therapy. Appropriate indications include younger individuals with acute proximal thromboses, a long life expectancy, and few comorbidities or limb-threatening thromboses.

What is a thrombolytic catheter?

A catheter used for thrombolysis is a long, thin, hollow plastic tube, about as thick as a strand of spaghetti. These catheters are designed to deliver blood dissolving medications effectively within the blood clot. Medical devices can also dissolve the clots mechanically.

What is thrombolysis procedure?

If a blood clot breaks free in your leg (deep vein thrombosis, or DVT) and travels to your lungs, it can cause a pulmonary embolism, blocked blood flow to your lungs. Thrombolysis uses medications or a minimally invasive procedure to break up blood clots and prevent new clots from forming.

When is thrombolysis indicated for DVT?

Clinical severity of DVT Urgent thrombolysis is indicated to prevent life-, limb-, or organ-threatening complications of acute DVT in situations such as phlegmasia cerulea dolens or extensive IVC thrombosis (especially with suprarenal extension which may lead to fatal PE or acute renal failure).

How long does catheter directed thrombolysis take?

Typically, thrombolysis is administered for a standard 18 hours, along with systemic heparin. The duration of thrombolysis may vary depending on the degree of hemodynamic instability and clot burden.

When are thrombolytics contraindicated?

Intravenous thrombolysis for stroke is contraindicated if the patient is taking therapeutic doses of LMWH because of the presumed high risk of hemorrhagic complications. Reports of IV thrombolysis given to patients taking LMWH are scarce in the literature.

Is thrombolysis a surgical procedure?

Thrombolysis involves dissolving a blood clot by injecting a chemical agent at the site of the clot. It can be used as an alternative to surgery for managing sudden severely reduced blood flow (acute ischaemia) in the leg.

How does thrombolysis work in stroke?

Thrombolysis – "clot buster" medicine Ischaemic strokes can often be treated using injections of a medicine called alteplase, which dissolves blood clots and restores blood flow to the brain. This use of "clot-busting" medicine is known as thrombolysis.

Why is thrombolysis done?

Thrombolytics work by dissolving a major clot quickly. This helps restart blood flow to the heart and helps prevent damage to the heart muscle. Thrombolytics can stop a heart attack that would otherwise be larger or potentially deadly.

Why is thrombolytic therapy used?

Fibrinolytic therapy — or thrombolytic therapy — is an emergency treatment used to dissolve blood clots before they become fatal. If you or a loved one has a heart attack, stroke or another condition caused by a blood clot, fibrinolytic therapy can help prevent death and reduce long-term side effects.

What are thrombolytics indications?

Thrombolytic therapy is indicated in patients with evidence of ST-segment elevation MI (STEMI) or presumably new left bundle-branch block (LBBB) presenting within 12 hours of the onset of symptoms if there are no contraindications to fibrinolysis.

Bruising, Bleeding or Swelling

This can occur where the tube entered your body. This occurs infrequently, in 1-3% of cases.

Bleeding Elsewhere

This can occur in such locations as your intestines or brain. This is rare.

How much TPA is needed for thrombus?

Often, collaterals form around the occlusion which serves as a hemodynamic bypass and further limits tPA delivery to the thrombus. Because CDT directly bathes the thrombus with lytic agent, it requires relatively low doses of tPA (about 0.01 mg/kg/h), usually ranging between 0.5 and 1 mg/h (12).

What is a VTE?

Venous thromboembolism (VTE) is a spectrum of disease including deep vein thrombosis (DVT) and pulmonary embolism (PE). VTE is a major public health concern, estimated to effect 1 to 2 per 1,000 people in the US each year (1-3). PE is responsible for almost all VTE related deaths. Over 80% of PE are the result of DVT in the leg or pelvic veins.

Is thrombectomy a pulmonary embolism?

Surgical thrombectomy is used in cases of VTE involving limb or life threatening emergencies such as massive pulmonary embolism, and is not routinely used for lower extremity DVT treatment. However, multiple studies have demonstrated the benefits of thrombectomy for preventing long-term sequelae of DVT.

Is DVT a multiplicative effect?

In many cases, these factors interact and may have a multiplicative effect and can increase the rate of mortality. Although much work has been done to identify and calculate risks of DVT, a large number (up to 20%) of DVT cases are considered idiopathic, with no clear risk factor identified.

Is DVT a health problem?

Deep vein thrombosis (DVT) is a major health problem worldwide. The risk of pulmonary embolism following DVT is well established, but the long-term vascular sequelae of DVT are often underappreciated, costly to manage, and can have extremely detrimental effects on quality of life. Treatment of DVT classically involves oral anticoagulation, ...

Can compression stockings be used for PTS?

As such , compression stockings are likely of little benefit in routine use for PTS prevention, but may be a reasonable option as a trial for certain patients, particularly with symptomatic edema or PTS (21). Thrombectomy and thrombolysis.

Is CDT a good option for infrainguinal DVT?

CDT may be a reasonable option for infrainguinal DVT if symptoms are acute and very severe, particularly in the setting of limb ischemia ( cerulean dolens). The main complication of CDT is bleeding. Significant bleeds are usually confined to the site of venous puncture, and intracranial bleeding is rare (26).

What is catheter directed thrombolysis?

Catheter-Directed Thrombolysis is a minimally-invasive procedure to remove or dissolve blood clots, for improving blood flow to a vital organ. A thrombosis or embolization (blood clot) can be life-threatening; it may even lead to the loss of an organ.

What kind of anesthesia is given during a catheter directed thrombolysis procedure?

What kind of Anesthesia is given, during the Procedure? Usually, local anesthesia will be injected to numb the path of the needle, during the Catheter-Directed Thrombolysis procedure. In some cases, general anesthesia may be needed.

What is thrombosis of portal veins?

Thrombosis of mesenteric veins or portal veins. Narrowing of arteries, due to atherosclerosis. Deep vein thrombosis, where the clot is formed in a main vein. Thrombolysis of dialysis fistulas or grafts.

What is a consent form for a catheter directed thrombolysis procedure?

A physician will request your consent for a Catheter-Directed Thrombolysis procedure using an Informed Consent Form. Consent for the Procedure: A “consent” is your approval to undergo a procedure. A consent form is signed after the risks and benefits of the procedure, and alternative treatment options, are discussed.

How to remove a clot after a catheter?

After the clot is visualized, the clot is removed by a mechanical device, or by delivering suitable medication to dissolve the clot. Both the catheter and IV lines are removed at the end of the procedure; no stitches are required.

What is IV line in a catheter?

The area of the catheter’s site is cleaned and sterilized and an intravenous (IV) line is inserted into the patient’s arm to give sedative medication, during the procedure. A catheter is inserted into the clean area and sent to the treatment site.

What is used to visualize blood vessels?

Contrast material and an X-ray machine are used to visualize the blood vessels. A catheter is inserted into the blood vessel and sent to the site of treatment. Once the catheter reaches the site of thrombosis, medication is injected into the site of abnormality, which helps in dissolving the clot.

What is catheter directed thrombolysis?

Catheter-directed thrombolysis is used to treat blood clots in arteries and veins resulting from any of these causes: Thrombosis in the vascular bed of the diseased arteries, such as thrombosis in an arm or leg artery that has severe narrowing due to atherosclerosis. deep vein thrombosis, a condition in which a blood clot forms in a main vein ...

What are the risks of thrombolysis?

These risks include damage to the blood vessel, bruising or bleeding at the puncture site, and infection. There is a risk of infection after thrombolysis. Whenever anticoagulant or thrombolytic agents are used, there is a risk that bleeding will occur elsewhere in the body.

What is it called when a clot breaks loose?

A clot that breaks loose, travels through the bloodstream and lodges in either an organ or artery forming a complete blockage in blood flow at that point is called an embolism. Thrombosis of the dialysis fistulas or grafts. Pulmonary embolism. Thrombosis of the portal vein and other mesenteric veins.

What is it called when a blood clot forms in the heart?

deep vein thrombosis, a condition in which a blood clot forms in a main vein that returns blood flow from the arms or legs back to the heart and lungs. This type of clot may grow big enough to completely block the vein, posing serious risk if part of it breaks off and travels to the lungs (called pulmonary embolism).

How long does it take for a blood clot to dissolve?

In most cases, the blood clot will completely dissolve within one to two days. The procedure is monitored using special x-rays and ultrasound scans.

What is the most serious complication of a thrombosis?

The most serious complication is intracranial bleeding, or bleeding in the brain. In some cases the material that is blocking your vessel may move to another part of the vascular system. Usually this can be treated with further thrombolysis but sometimes may require surgery.

What happens when blood does not flow?

When blood does not flow smoothly through a vessel, it can begin to coagulate, turning from a free-flowing liquid to a semi-solid gel, or blood clots. A blood clot, or thrombus, that forms within a blood vessel may continue to grow, blocking off the blood supply to certain parts of the body and causing damage to tissues and organs.

What are the complications of thrombolysis?

Other common complications include vascular access related injury, pulmonary hemorrhage, retroperitoneal hemorrhage, cardio genic shock, perforation or dissection of the pulmonary artery, arrhythmias, right-sided valvular regurgitation, pericardial tamponade, and contrast-induced nephropathy 27).

What is a pulmonary embolism response team?

The pulmonary embolism response team team is a multidisciplinary team made up of cardiologist and pulmonologist specialized. They work together to treat pulmonary embolism and to determine the best treatment plan and achieve the best outcomes. Once catheter directed thrombolysis is chosen as a management course, the practitioners should counsel the patient regarding the risk and benefits of the procedure. A trained physician knowledgeable in the risk and benefits should have this discussion. The patient should give consent. An anesthesiologist should evaluate the patient to determine the need, mode, and safety of anesthetic delivery. An imaging specialist or structuralist may consult for further recommendations on the size and burden of pulmonary embolism. It is a level I recommendation to utilize this multidisciplinary approach. Studies have shown the pulmonary embolism response team team can reduce adverse events 25). A swift and early diagnosis followed by early treatment is the key to successful thrombolysis of pulmonary embolism.

What is the best treatment for tPA toxicity?

The drug used to reverse tPA toxicity is aminocaproic acid, an FDA-approved drug for the management of acute bleeding caused by increased fibrinolytic activity. It acts as an effective inhibitor for proteolytic enzymes like plasmin, which is the primary enzyme responsible for fibrinolysis 18).

Is pulmonary embolism a class B or IIA?

Currently catheter directed thrombolysis for the management of pulmonary embolism is only suggested for massive pulmonary embolism as a class IIa and level B recommendation according to the American College of Cardiology and American Heart Association. While the use of systemic thrombolytic therapy in patients with submassive pulmonary embolism is not recommended by the guidelines, cardiopulmonary collapse or the development of critical hypotension is the only case exemption 22). Catheter directed thrombolysis has a considerable advantage over systemic thrombolytic therapy due to the lower the risk of bleeding. Some centers divide the category of submassive pulmonary embolism into intermediate high risk and intermediate low risk. At these facilities, those patients who fall into the intermediate high risk are considered for catheter directed thrombolysis. Those patients determined to be in the intermediate low risk are not considered for thrombolytic therapy. All patients considered for thrombolytic therapy should have a low bleeding risk.

Is thrombolysis a catheter directed thrombolysis?

Though thrombolysis is administered locally during catheter directed thrombolysis for pulmonary embolism, the thrombolysis disperses systemically. Systemic dispersion of thrombolytic therapy is the cause for many of the severe complications of catheter directed thrombolysis. Therefore, contraindications to catheter directed thrombolysis are a prior ischemic stroke, cerebral bleed, cerebral mass, vascular deformation, recent ulcer in the gastrointestinal tract, recent brain/spine surgery, major abdominal or pelvic surgery, or any source of active hemorrhage 23). Those with contraindications to catheter directed thrombolysis therapy are usually contraindicated for systemic thrombolytic. These patient are treated with anticoagulant therapy, antiplatelet therapy, or supportive care.

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