Predicting short-term thromboembolic risk following Roux-en-Y gastric bypass using supervised machine learning

doi:10.4240/wjgs.v16.i4.1097

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World Journal of Gastrointestinal Surgery

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1948-9366

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

Retrospective Study

World J Gastrointest Surg. Apr 27, 2024; 16(4): 1097-1108
Published online Apr 27, 2024. doi: 10.4240/wjgs.v16.i4.1097

Table 1 Baseline characteristic and clinical outcomes of included patients

Factor	Value
N	6526
Postoperative VTE within 30 d (%)	49 (0.8)
Age, median (IQR)	44 (36.1, 52.81)
Age > 50 yr (%)	2083 (31.9)
Female gender (%)	5282 (80.9)
Preop GERD requiring medication (%)	2477 (38.0)
Preop history of MI (%)	67 (1.0)
Previous PCI (%)	140 (2.1)
Previous cardiac surgery (%)	48 (0.7)
Preop hypertensive requiring medication (%)	3340 (51.2)
Preop hyperlipidemia (%)	1691 (25.9)
Preop weight closest to bariatric surgery, median (IQR)	287 (256, 329)
Preop BMI closest to bariatric surgery, median (IQR)	47.61 (44.26, 51.75)
Preop vein thrombosis (%)	128 (2.0)
Preop venous stasis (%)	195 (3.0)
Preop requiring or on dialysis (%)	7 (0.1)
Preop renal insufficiency/CKD (%)	56 (0.9)
Preop therapeutic anticoagulation (%)	201 (3.1)
Previous foregut surgery (%)	710 (10.9)
Current smoker within 1 yr (%)	546 (8.4)
Preop history of COPD (%)	126 (1.9)
Preop obstructive sleep apnea	3196 (49.0)
Preop steroid/immunosuppressant use for chronic condition (%)	113 (1.7)
Preop history of IVC filter placement (%)	25 (0.4)
Preop history of DM (%)	2009 (30.8)
Preop albumin (g/dL), median (IQR)	3.9 (3.4, 4.2)
Preop serum creatinine (mg/dL), median (IQR)	0.77 (0.69, 0.85)
Preop hematocrit (%), median (IQR)	40.3 (37.7, 42.8)
Preop hemoglobin A1c > 7%	741 (11.4)

VTE: Venous thromboembolism; Preop: Preoperative; GERD: Gastroesophageal reflux disease; MI: Myocardial infarction; PCI: Primary coronary intervention; CKD: Chronic kidney disease; COPD: Chronic obstructive pulmonary disease; IVC: Inferior vena cava; DM: Diabetes mellitus.

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Citation: Ali H, Inayat F, Moond V, Chaudhry A, Afzal A, Anjum Z, Tahir H, Anwar MS, Dahiya DS, Afzal MS, Nawaz G, Sohail AH, Aziz M. Predicting short-term thromboembolic risk following Roux-en-Y gastric bypass using supervised machine learning. World J Gastrointest Surg 2024; 16(4): 1097-1108
URL: https://www.wjgnet.com/1948-9366/full/v16/i4/1097.htm
DOI: https://dx.doi.org/10.4240/wjgs.v16.i4.1097

Ali H, Inayat F, Moond V, Chaudhry A, Afzal A, Anjum Z, Tahir H, Anwar MS, Dahiya DS, Afzal MS, Nawaz G, Sohail AH, Aziz M. Predicting short-term thromboembolic risk following Roux-en-Y gastric bypass using supervised machine learning. World J Gastrointest Surg 2024; 16(4): 1097-1108 [PMID: 38690043 DOI: 10.4240/wjgs.v16.i4.1097]

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