Weight regain after intragastric balloon for pre-surgical weight loss

Table 1 Demographics, indication surgery, perioperative factors and postoperative complications

Variable	n (%)
Age, mean ± SD	53 ± 11
Male	30 (91)
Diabetes	8 (24)
Hypertension	23 (70)
Gastroesophageal reflux disease	12 (36)
Obstructive sleep apnea	17 (52)
ASA class
ASA class I	0
ASA class II	5 (15)
ASA class III	28 (85)
ASA class IV	0
Charlson Comorbidity Index Score
None (Score 0)	12 (36)
Mild (Score 1-2)	12 (36)
Moderate (Score 3-4)	8 (24)
Severe (Score 5+)	1 (3)
Procedure length (minutes), mean ± SD	15 ± 6
Duration of therapy (days), mean ± SD	186 ± 41
Indication surgery
Incisional hernia	12 (36)
Inguinal hernia	3 (9)
Umbilical hernia	10 (30)
Total knee arthroplasty	7 (21)
Total hip arthroplasty	1 (3)
Postoperative symptoms, self-reported
Nausea and/or emesis	14 (42)
Heartburn	4 (29)
30-day ED utilization, total	13 (43)
30-day ED utilization, procedure-related	5 (15)
30-day readmissions	5 (15)

ASA: American Society of Anesthesiology; ED: Emergency department.

Table 2 Weight loss outcomes

Weight outcomes	mean ± SD
Initial weight (kg)	120.0 ± 13.0
Initial BMI (kg/m2)	38.4 ± 2.8
Weight at balloon removal (kg)	106.0 ± 15.1
BMI at balloon removal (kg/m2)	33.9 ± 3.6
Weight loss at removal (kg)	14.0 ± 7.4
Excess body weight loss (%)	30.0 ± 17.8
Post-balloon weight, 1 month (kg)	109.4 ± 14.9
Post-balloon weight, 2 months (kg)	106.5 ± 17.6
Post-balloon weight, 3 months (kg)	111.5 ± 12.5
Weight regain, 1 month (kg)	1.5 ± 9.6
Weight regain, 2 months (kg)	2.5 ± 10.7
Weight regain, 3 months (kg)	5.4 ± 14.4
Weight regain, 1 year after IGB placement (kg)	3.3 ± 8.9

BMI: Body mass index.