- ICH GCP
- Amerikanska kliniska prövningsregistret
- Klinisk prövning NCT00178789
Sonography Outcomes Assessment Program for Lower Extremity Deep Venous Thrombosis
Prospective Observational Trial of Point-of-Care, Limited Ultrasonography (PLUS) for Lower Extremity Deep Venous Thrombosis in the Emergency Department: The Sonography Outcomes Assessment Program (SOAP-4 Trial)
Currently, most emergency physicians have limited access to obtaining formal radiology ultrasound studies, particularly overnight. Many are forced to adopt risky and expensive strategies in managing their patients with suspected deep venous thrombosis (DVT) who present during off-hours: for low risk patients, discharging without anticoagulation and arranging for outpatient studies; for moderate to high risk patients, empirically anticoagulating and admitting to the hospital to await definitive testing. If emergency physicians could reliably perform an accurate ultrasound exam for DVT, such risks could be obviated.
This is a prospective, observational cohort study assessing the accuracy of emergency physician diagnosis of proximal DVT using compact ultrasound equipment and a simplified compression technique. The value of color flow doppler and augmentation will also be assessed. Outcomes (sensitivity, specificity, positive likelihood ratio and negative likelihood ratio) will be assessed at 30 days.
Prior to enrolling patients in the study, emergency physicians will undertake a 2 hour training course on the performance of the simplified compression technique for the diagnosis of lower extremity DVT. Emergency physicians will perform the DVT ultrasound exam on study subjects with suspected DVT. Clinical management of the study subjects will not be altered; all subjects will proceed to receive a formal DVT ultrasound study by the radiology department which will serve as the criterion reference for the study.
Studieöversikt
Status
Betingelser
Studietyp
Inskrivning (Förväntat)
Kontakter och platser
Studieorter
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Texas
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Houston, Texas, Förenta staterna, 77030
- Memorial Hermann Hospital Emergency Department
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Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
Tar emot friska volontärer
Kön som är behöriga för studier
Beskrivning
Inclusion Criteria:
Inclusion criteria:
- Presenting signs and symptoms sufficiently suspicious for lower extremity DVT to warrant a formal radiology study in the opinion of the treating physician AND EITHER 2a. Moderate or high pre-test clinical probability of DVT (Wells Criteria) OR 2b. Low pre-test clinical probability of DVT with a positive D-dimer
Exclusion Criteria:
Exclusion criteria:
- Documented lower extremity DVT within the past 60 days
- Anatomic abnormality that, in the judgment of the investigator, would preclude imaging of both femoral and popliteal veins on the affected leg (i.e. above-knee amputation or severe scarring from intravenous drug abuse in the inguinal area)
- Patient below the age of 18 years.
Studieplan
Hur är studien utformad?
Designdetaljer
Samarbetspartners och utredare
Utredare
- Huvudutredare: Gregory M Press, MD, The University of Texas Health Science Center, Houston
Studieavstämningsdatum
Studera stora datum
Studiestart
Avslutad studie (Faktisk)
Studieregistreringsdatum
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Första postat (Uppskatta)
Uppdateringar av studier
Senaste uppdatering publicerad (Uppskatta)
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Mer information
Termer relaterade till denna studie
Nyckelord
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- HSC-MS-05-0011
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