Pulmonary Embolism — Surgery in Pulmonary Embolisms
Citation(s)
Azari A, Beheshti AT, Moravvej Z, Bigdelu L, Salehi M Surgical embolectomy versus thrombolytic therapy in the management of acute massive pulmonary embolism: Short and long-term prognosis. Heart Lung. 2015 Jul-Aug;44(4):335-9. doi: 10.1016/j.hrtlng.2015.04.008.
Lin DS, Lin YS, Lee JK, Chen WJ Short- and Long-Term Outcomes of Catheter-Directed Thrombolysis versus Pulmonary Artery Embolectomy in Pulmonary Embolism: A National Population-Based Study. J Endovasc Ther. 2022 Jun;29(3):409-419. doi: 10.1177/15266028211054763. Epub 2021 Oct 27.
Loyalka P, Ansari MZ, Cheema FH, Miller CC 3rd, Rajagopal S, Rajagopal K Surgical pulmonary embolectomy and catheter-based therapies for acute pulmonary embolism: A contemporary systematic review. J Thorac Cardiovasc Surg. 2018 Dec;156(6):2155-2167. doi: 10.1016/j.jtcvs.2018.05.085. Epub 2018 Jun 8.
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
Expanded access is a means by which manufacturers make investigational new drugs available, under certain circumstances, to treat a patient(s) with a serious disease or condition who cannot participate in a controlled clinical trial.
Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.
