Impact of praeoperative Barium swallow fluoroscopy on surgical decision in bariatric revision and REDO surgery

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00039124

Enrollment

100

Registered

2026-02-13

Start date

2026-02-12

Completion date

Unknown

Last updated

2026-03-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

K21.0 K44.0 K91.1 R13.9 E66.0

Interventions

Group 1: Patients who underwent planned bariatric surgery at the obesity center and received barium swallow fluoroscopy between November 2023 and November 2025 will be retrospectively identified.

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: Patient: Individuals who underwent primary or revision bariatric surgery within the specified period. Preoperative barium swallow fluoroscopy and esophagogastroduodenoscopy are performed. Findings are fully documented in the patient's medical record. Age >18 years

Exclusion criteria

Exclusion criteria: Missing documentation of barium swallow fluoroscopy or esophagogastroduodenoscopy/gastroscopy Patient: under 18 years of age

Design outcomes

Primary

Measure	Time frame
The aim of this study is a retrospective, single-center evaluation of the diagnostic utility of barium swallow fluoroscopy (BSF) compared to esophagogastroduodenoscopy (EGD) in bariatric patients. The study will examine the extent to which BSF identifies surgically relevant findings, whether these findings were missed during EGD, and how the results—particularly in revision surgeries—influence surgical procedures. Primary endpoints: Diagnostic accuracy of BSF: Sensitivity and specificity in detecting surgically relevant findings (e.g., hiatal hernias, dilatations, dumping syndrome, reflux, passage disorders, and anastomotic leaks, see above) compared to EGD. Identification of causes for revision surgery: Proportion of cases in which BSF findings are evaluated that directly influence the surgical approach in revision procedures (e.g., ReSleeve versus conversion to a bypass procedure, such as Roux-en-Y gastric bypass, single-anastomosis bypass, so-called Omega Loop Bypass, SASI/J (Single Anastomosis Sleeve Ileal/Jejunal Bypass)).	—

Measure

Time frame

The aim of this study is a retrospective, single-center evaluation of the diagnostic utility of barium swallow fluoroscopy (BSF) compared to esophagogastroduodenoscopy (EGD) in bariatric patients. The study will examine the extent to which BSF identifies surgically relevant findings, whether these findings were missed during EGD, and how the results—particularly in revision surgeries—influence surgical procedures. Primary endpoints: Diagnostic accuracy of BSF: Sensitivity and specificity in detecting surgically relevant findings (e.g., hiatal hernias, dilatations, dumping syndrome, reflux, passage disorders, and anastomotic leaks, see above) compared to EGD. Identification of causes for revision surgery: Proportion of cases in which BSF findings are evaluated that directly influence the surgical approach in revision procedures (e.g., ReSleeve versus conversion to a bypass procedure, such as Roux-en-Y gastric bypass, single-anastomosis bypass, so-called Omega Loop Bypass, SASI/J (Single Anastomosis Sleeve Ileal/Jejunal Bypass)).

—

Secondary

Measure	Time frame
Correlation between BSF and EGD: Agreement or divergence of findings between the two examination methods. Postoperative complications: Occurrence of complications (e.g., leaks, stenoses, obstructions) in connection with preoperatively identified findings. Changes in surgical planning: Proportion of cases in which the BSF results led to an adjustment of the surgical procedure. Subgroup analysis in revisions: Evaluation of the added value of BSF specifically in patients with weight regain, reflux, and dilatations.	—

Measure

Time frame

Correlation between BSF and EGD: Agreement or divergence of findings between the two examination methods. Postoperative complications: Occurrence of complications (e.g., leaks, stenoses, obstructions) in connection with preoperatively identified findings. Changes in surgical planning: Proportion of cases in which the BSF results led to an adjustment of the surgical procedure. Subgroup analysis in revisions: Evaluation of the added value of BSF specifically in patients with weight regain, reflux, and dilatations.

—

Countries

Germany

Contacts

Public ContactCédric R. D. Demtröder

St. Martinus Krankenhaus Düsseldorf

c.demtroeder@martinus-duesseldorf.de+492119171458

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Mar 14, 2026