Pulmonary embolism landmark trials: Difference between revisions

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*'''Study Type: '''Interventional
*'''Study Type: '''Interventional
*'''Study Design: '''Primary Purpose: Diagnostic
*'''Study Design: '''Primary Purpose: Diagnostic


2. '''PIOPED II (Prospective Investigation in Pulmonary Embolism Diagnosis II)''' (2002).<ref name="pmid12105798">{{cite journal |author=Gottschalk A, Stein PD, Goodman LR, Sostman HD |title=Overview of Prospective Investigation of Pulmonary Embolism Diagnosis II |journal=Semin Nucl Med |volume=32 |issue=3 |pages=173–82 |year=2002 |month=July |pmid=12105798 |doi=10.1053/snuc.2002.124177 |url=http://linkinghub.elsevier.com/retrieve/pii/S0001-2998(02)80003-4 |accessdate=2012-01-10}}</ref>
2. '''PIOPED II (Prospective Investigation in Pulmonary Embolism Diagnosis II)''' (2002).<ref name="pmid12105798">{{cite journal |author=Gottschalk A, Stein PD, Goodman LR, Sostman HD |title=Overview of Prospective Investigation of Pulmonary Embolism Diagnosis II |journal=Semin Nucl Med |volume=32 |issue=3 |pages=173–82 |year=2002 |month=July |pmid=12105798 |doi=10.1053/snuc.2002.124177 |url=http://linkinghub.elsevier.com/retrieve/pii/S0001-2998(02)80003-4 |accessdate=2012-01-10}}</ref>
Line 16: Line 15:
*'''Study Design: '''Primary Purpose: Diagnostic
*'''Study Design: '''Primary Purpose: Diagnostic
* '''Comparison with PIOPED:''' In contrast to the original PIOPED study, which used contrast pulmonary angiography as the primary reference test for PE, PIOPED II used composite reference test for venous thromboembolism that was based on the ventilation/perfusion lung scan, venous compression ultrasound of the lower extremities, digital subtraction pulmonary angiography, and contrast venography in various combinations to establish the PE status of the patient. New criteria for ventilation/perfusion lung scan diagnosis were  developed for PIOPED II.
* '''Comparison with PIOPED:''' In contrast to the original PIOPED study, which used contrast pulmonary angiography as the primary reference test for PE, PIOPED II used composite reference test for venous thromboembolism that was based on the ventilation/perfusion lung scan, venous compression ultrasound of the lower extremities, digital subtraction pulmonary angiography, and contrast venography in various combinations to establish the PE status of the patient. New criteria for ventilation/perfusion lung scan diagnosis were  developed for PIOPED II.
3. '''PIOPED III (Prospective Investigation of Pulmonary Embolism Diagnosis III)'''
* '''Purpose :'''The purpose of this study is to determine the diagnostic accuracy of gadolinium-enhanced magnetic resonance angiography (Gd-MRA) of the pulmonary arteries in combination with magnetic resonance venography (MRV) of the veins of the thighs in patients with clinically suspected acute pulmonary embolism (PE).'''
*'''Study Type:''' Observational
*'''Study Design:'''
**Observational Model: Cohort
**Time Perspective: Prospective


==References==
==References==

Revision as of 15:56, 10 January 2012

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor-In-Chief: Ujjwal Rastogi, MBBS [2]

Landmark Clinical Trials

Trials assessing the diagnosis

1. PIOPED (Prospective Investigation in Pulmonary Embolism Diagnosis) (1989).[1]

  • Purpose : To evaluate the sensitivity and specificity of two major, widely used technologies, radionuclear imaging (ventilation-perfusion scanning) and pulmonary angiography, for the diagnosis of pulmonary embolism.
  • Study Type: Interventional
  • Study Design: Primary Purpose: Diagnostic

2. PIOPED II (Prospective Investigation in Pulmonary Embolism Diagnosis II) (2002).[2]

  • Purpose : It was designed to assess the efficacy of the spiral computed tomographic pulmonary angiogram in patients suspected of having acute pulmonary embolism (PE).
  • Study Type: Interventional
  • Study Design: Primary Purpose: Diagnostic
  • Comparison with PIOPED: In contrast to the original PIOPED study, which used contrast pulmonary angiography as the primary reference test for PE, PIOPED II used composite reference test for venous thromboembolism that was based on the ventilation/perfusion lung scan, venous compression ultrasound of the lower extremities, digital subtraction pulmonary angiography, and contrast venography in various combinations to establish the PE status of the patient. New criteria for ventilation/perfusion lung scan diagnosis were developed for PIOPED II.

3. PIOPED III (Prospective Investigation of Pulmonary Embolism Diagnosis III)

  • Purpose :The purpose of this study is to determine the diagnostic accuracy of gadolinium-enhanced magnetic resonance angiography (Gd-MRA) of the pulmonary arteries in combination with magnetic resonance venography (MRV) of the veins of the thighs in patients with clinically suspected acute pulmonary embolism (PE).
  • Study Type: Observational
  • Study Design:
    • Observational Model: Cohort
    • Time Perspective: Prospective

References

  1. "Value of the ventilation/perfusion scan in acute pulmonary embolism. Results of the prospective investigation of pulmonary embolism diagnosis (PIOPED). The PIOPED Investigators". JAMA. 263 (20): 2753–9. 1990. PMID 2332918. |access-date= requires |url= (help)
  2. Gottschalk A, Stein PD, Goodman LR, Sostman HD (2002). "Overview of Prospective Investigation of Pulmonary Embolism Diagnosis II". Semin Nucl Med. 32 (3): 173–82. doi:10.1053/snuc.2002.124177. PMID 12105798. Retrieved 2012-01-10. Unknown parameter |month= ignored (help)

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