Matthew E Seigerman

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BACKGROUND Despite clinical and technical advances, acute aortic dissection carries high operative mortality. This study was designed to establish whether this is influenced by institution and surgeon volume. METHODS Outcomes of 5,184 patients (mean age, 60.3 years; 65.9% male) diagnosed with acute aortic dissection from the Nationwide Inpatient Sample(More)
AIM To evaluate the incidence and risk factors for the development of anemia after Roux-en-Y gastric bypass (RYGB). METHODS A retrospective analysis of patients undergoing RYGB from January 2003 to November 2007 was performed. All patients had a preoperative body mass index > 40 kg/m(2). A total of 206 patients were evaluated. All patients were given(More)
BACKGROUND There continues to be controversy about the necessity of interval appendectomy for delayed presentation of acute appendicitis. While recent studies suggest that the risk of recurrent disease is small, the risk of interval appendectomy is also small and does provide histologic identification and usually definitive treatment of the right lower(More)
OBJECTIVES The objective of this study was to compare the early outcomes of off-pump and on-pump surgeries in high-risk patient groups. METHODS The outcomes of 83,914 high-risk patients undergoing off-pump or on-pump isolated coronary bypass surgery identified from the Nationwide Inpatient Sample from 2005 to 2010 were compared using propensity analysis.(More)
OBJECTIVES The objective of this study was to assess the impact of robotic approaches on outcomes of coronary bypass surgery. DESIGN Retrospective national database analysis. SETTING United States hospitals. PARTICIPANTS A weighted sample of 484,128 patients undergoing isolated coronary artery surgery identified from the Nationwide Inpatient Sample(More)
OBJECTIVES The objective of this study was to quantify the impact of heparin-induced thrombocytopenia (HIT) on outcomes after cardiac surgery. DESIGN Retrospective analysis of national database. SETTING United States hospitals. PARTICIPANTS Patients identified from 186,771 discharge records undergoing cardiac surgery from the Nationwide Inpatient(More)
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