Obesity
Conditions
Keywords
Obesity, Gastric bypass, Medication, Medication counseling, Dietary pattern, Follow-up of patients
Brief summary
Patients who have scheduled a gastric bypass (RYGB) in UZ Leuven, will be questioned preoperatively and one, three, six and twelve months after gastric bypass surgery. The purpose of this study is to explore current practice regarding the use of medication and medication counseling after RYGB and to examine the changes in dietary pattern before and after RYGB.
Detailed description
Target group: patients who have scheduled a gastric bypass in UZ Leuven. Patients will be questioned preoperatively and one, three, six and twelve months after gastric bypass surgery. Each assessment will be performed during a routine consultation. The following aspects will be investigated: * Medication The investigators have composed a questionnaire to examine which drugs the patients use, adherence, information received about medication and from whom,… * Clinical parameters Every consultation, concentrations of hemoglobin, iron, hepcidin, vitamin B12,…. and a 24h urine collection to determine calcium excretion will be collected. * Dietary intake The investigators will ask patients to keep a food record during two non-consecutive days preceding each consultation. In this food record patients have to note all consumed foods and beverages with the right/estimated amounts. This makes it possible to see the changes of the composition of the meals before and after RYGB. * Body composition
Interventions
None listed
Sponsors
KU Leuven
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Patients who have scheduled gastric bypass * Use of at least one chronic drug (including contraception)
Exclusion criteria
* Patients who have undergone another form of bariatric surgery before RYGB
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Medication use | one year | Patients will be questioned preoperatively and one, three, six and twelve months after gastric bypass surgery. A questionnaire will be used to examine which drugs patients use and to what level they are adherent to treatment recommendations. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Changes in dietary pattern before and after RYGB | one year | The investigators will ask patients to keep a food record during two non-consecutive days preceding each consultation. In this food record patients have to note all consumed foods and beverages with the right/estimated amounts. This makes it possible to see changes of the composition of the meals before and after RYGB. The correlation between the dietary/total intake and clinical parameters will be investigated. |
| Medication counseling | one year | Patients will be questioned preoperatively and one, three, six and twelve months after gastric bypass surgery. A questionnaire will be used to examine what kind of information they received about medication use pre- and post-RYGB. |
Countries
Belgium
Outcome results
None listed