The study's hypothesis is that there are some patients who come for surgery who have asymptomatic clots in their lower extremities upon their arrival to the hospital for their surgical admission. We will be performing duplex studies of the subjects' legs before their surgery to determine how often clots are present. We will also perform duplex scans of the legs after the subjects' surgeries to determine what factors (surgical, anesthetic, co-morbidities)are correlated with the development of DVTs.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
SCREENING
Masking
NONE
Enrollment
271
Lower extremities will be duplex scanned pre and post-operatively
University of Chicago Hospitals
Chicago, Illinois, United States
The incidence of preoperative DVTs
Time frame: Day of surgery
Incidence of post-operative DVTs
Time frame: Within 48 hours of surgery
Risk factors associated with the development of perioperative DVTs
Time frame: Within 180 days of surgery
Distribution and laterality
Level and laterality of clots that develop and association of these with risk factors
Time frame: Within 180 days of surgery
Risks associated with perioperative DVTs
Association of clinical pulmonary emboli and/or cardiac arrests, cerebral vascular events, or other causes of death or significant morbidities (e.g., post-op pneumonias or other infections)perioperatively with DVTs
Time frame: Within 180 days of surgery
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