Esophageal motility after laparoscopic sleeve gastrectomy

Figures & data

Table 1 Gastroscopic preoperative evaluation

Gastroscopic findings	Patients, n (%)
Normal	6 (33.3)
Esophagitis A	2 (11.1)
Esophagitis A–gastritis–duodenitis	2 (11.1)
Esophagitis B–gastritis	1 (5.5)
Esophagitis B–gastritis–duodenitis	1 (5.5)
Gastritis	5 (27.8)
Gastritis–duodenitis	1 (5.5)

Figure 1 Reflux symptom evaluation.

Figure 2 Manometric LES data: (A) LES total length, (B) resting pressure, (C) residual pressure, and (D) relaxation (%).

Abbreviations: LES, lower esophageal sphincter; LSG, laparoscopic sleeve gastrectomy.

Figure 3 Amplitude pressure at the upper border LES, distal esophagus and mid-esophagus.

Abbreviations: LES, lower esophageal sphincter; LSG, laparoscopic sleeve gastrectomy.

Figure 4 Peristaltic swallow modifications.

Abbreviation: LSG, laparoscopic sleeve gastrectomy.

Table 2 Correlation of absolute changes of heartburn and regurgitation symptoms with the manometric findings

	Positive correlation	Spearman’s r	p-value	Negative correlation	Spearman’s r	p-value
Heartburn	Mid-esophagus onset velocity	0.462	0.13	Relaxation (%)	−0.563	0.015
	Residual pressure	0.363	0.139	Mid-esophagus peak velocity	−0.434	0.159
	Upper border LES peak velocity	0.355	0.161
Regurgitation	Duration of distal esophagus	0.467	0.051	Relaxation (%)	−0.414	0.088
	Amplitude pressure of upper border of LES	0.463	0.053	Onset velocity of mid-esophagus	−0.378	0.226
	Distal esophagus onset velocity	0.429	0.086	Peristaltic normal swallows (%)	−0.351	0.153
	Residual pressure	0.297	0.231	Mid-esophagus peak velocity	−0.343	0.275
	Amplitude pressure of mid-esophagus	0.280	0.260
	Propagation time of distal esophagus	0.257	0.303

Abbreviation: LES, lower esophageal sphincter.

Figure S1 Reflux symptoms assessment questionnaire