---
title: Evaluation of Bariatric Surgery Patients Before and After Sleeve Gastrectomy in Terms of Nutritional Status
nct_id: NCT05690139
overall_status: COMPLETED
sponsor: Eastern Mediterranean University
study_type: OBSERVATIONAL
primary_condition: Obesity
countries: Cyprus
canonical_url: "https://parkinsonspathways.com/agent/trials/NCT05690139.md"
clinicaltrials_gov: "https://clinicaltrials.gov/study/NCT05690139"
ct_last_update_post_date: 2023-01-19
last_seen_at: "2026-05-12T07:13:53.785Z"
source: ClinicalTrials.gov (mirrored, no enrichment)
---
# Evaluation of Bariatric Surgery Patients Before and After Sleeve Gastrectomy in Terms of Nutritional Status

**Official Title:** Evaluation of Bariatric Surgery Patients Before and After Sleeve Gastrectomy in Terms of Protein-energy and Food Groups Consumption by Three Factors Eating Scale and Healthy Eating Index

**NCT ID:** [NCT05690139](https://clinicaltrials.gov/study/NCT05690139)

## Key Facts

- **Status:** COMPLETED
- **Study Type:** OBSERVATIONAL
- **Target Enrollment:** 55
- **Lead Sponsor:** Eastern Mediterranean University
- **Conditions:** Obesity, Bariatric Surgery Candidate, Healthy Eating Index
- **Start Date:** 2020-07-06
- **Completion Date:** 2022-12-06
- **CT.gov Last Update:** 2023-01-19

## Brief Summary

Background/purpose: Laparoscopic sleeve gastrectomy (LSG) has been defined as an innovative surgical method for the treatment of obesity and is progressively applied worldwide. However, data on result of sleeve gastrectomy regarding energy-protein status, nutrient deficiencies and body composition are limited. The purpose of this study is to search nutritional status, body composition and biochemical parameters following LSG.

Methods: Obese subjects (N:55) scheduled for sleeve gastrectomy were included. Macro-micronutrient intake analysis, biochemical blood parameters, and anthropometric measures were performed before and 1, 3 and 6 months after LSG.

## Detailed Description

Background/purpose: Laparoscopic sleeve gastrectomy (LSG) has been defined as an innovative surgical method for the treatment of obesity and is progressively applied worldwide. Nutritional deficiencies are identified as the possible complications of bariatric surgery. However, data on result of sleeve gastrectomy regarding energy-protein status, nutrient deficiencies and body composition are limited. The purpose of this study is to search nutritional status, body composition and biochemical parameters following LSG.

Methods: Obese subjects (N:55) scheduled for sleeve gastrectomy were included in this study. Preoperative and postoperative (1, 3 and 6th months) protein-energy and other nutrient consumptions, eating habits, food consumption diversity were evaluated with food frequency questionnaire, 3-days food diary record, three-factor eating scale and healthy eating index. Also in the pre- and postoperative period; anthropometric (weight, height, waist, hip, fat free mass) values measured and biochemical blood parameters were collected.

## Eligibility

- **Minimum age:** 18 Years
- **Maximum age:** 65 Years
- **Sex:** ALL
- **Healthy Volunteers:** No

```
Inclusion Criteria:

* Volunteering to participate in the research,
* To have sleeve gastrectomy surgery,
* To be over 18 and under 65 years old
* Not having a perception disorder and communication problems

Exclusion Criteria:

* Ages \<18 or \>65 years old
* Having a pacemaker (implantation) or any prosthesis (inconvenient for segmental body analysis)
```

## Arms

- **Obese patients** — Obese patients received LSG surgery approval

## Interventions

- **Pre-operative LSG patients** (PROCEDURE) — Baseline
- **Post-operative patients 1st month** (PROCEDURE) — 1 month after surgery
- **Post-operative patients 3rd month** (PROCEDURE) — 3 months after surgery
- **Post-operative patients 6th month** (PROCEDURE) — 6 months after surgery

## Primary Outcomes

- **Comparing the 3-day food diaries (1 weekend day and 2 weekdays) taken during each intervention (pre-post operative 1,3,6 months)** _(time frame: 6 months)_ — Daily nutrient intake was calculated by using computer software (Stuttgart, Germany; Turkish version: BeBiS, Vers. 9)
- **Three Factor Eating Questionnaire Revised-21 (TFEQ-Tr21) scale** _(time frame: 6 months)_ — Dietary Behavior: A modification of the Three Factor Eating Questionnaire (TFEQ-TR21) was used to assess cognitive restraint of eating, disinhibition, and hunger.
- **Healthy Eating Index (HEI-2010)** _(time frame: 6 months)_ — Diet Quality: was assessed using the HEI-2010, a measure of diet quality that assesses how well dietary intake aligns with key recommendations.

## Secondary Outcomes

- **Comparing the waist circumference (cm) of all interventions** _(time frame: 6 months)_
- **Comparing the body mass index (BMI) of all interventions** _(time frame: 6 months)_
- **Comparing the body fat percentage (%) of all interventions** _(time frame: 6 months)_
- **Comparing the fasting blood glucose levels of all interventions** _(time frame: 6 months)_
- **Comparing the serum lipid levels of all interventions** _(time frame: 6 months)_
- **Comparing the serum B12 levels of all interventions** _(time frame: 6 months)_

## Locations (1)

- Eastern Mediterranean University, Famagusta, Cyprus

## Recent Field Changes (last 30 days)

- `status.overallStatus` — added _(2026-05-12)_
- `status.primaryCompletionDate` — added _(2026-05-12)_
- `status.completionDate` — added _(2026-05-12)_
- `status.lastUpdatePostDate` — added _(2026-05-12)_
- `design.enrollmentCount` — added _(2026-05-12)_
- `eligibility.criteria` — added _(2026-05-12)_
- `eligibility.minAge` — added _(2026-05-12)_
- `eligibility.maxAge` — added _(2026-05-12)_
- `eligibility.sex` — added _(2026-05-12)_
- `outcomes.primary` — added _(2026-05-12)_
- `outcomes.secondary` — added _(2026-05-12)_
- `armsInterventions.arms` — added _(2026-05-12)_
- `armsInterventions.interventions` — added _(2026-05-12)_
- `sponsor.lead` — added _(2026-05-12)_
- `results.hasResults` — added _(2026-05-12)_
- `locations.eastern mediterranean university|famagusta||cyprus` — added _(2026-05-12)_

---

*Canonical: https://parkinsonspathways.com/agent/trials/NCT05690139.md*  
*Source data (authoritative): https://clinicaltrials.gov/study/NCT05690139*  
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