Diet behavior and low hemoglobin level after laparoscopic mini-gastric bypass surgery

Area of Science:

• Bariatric Surgery Outcomes
• Nutritional Deficiencies
• Gastroenterology

Background:

• Laparoscopic mini-gastric bypass surgery (LMGB) can lead to nutritional deficiencies, including iron and calcium, and general malnutrition.
• Iron deficiency anemia is a common complication following LMGB.

Purpose of the Study:

• Investigate the causes of low hemoglobin levels in patients after LMGB.
• Examine the relationship between dietary frequency, eating behaviors, and low hemoglobin levels post-surgery.

Main Methods:

• A study included 120 patients (34 male, 86 female) who underwent LMGB between January 2009 and April 2010.
• Anemia was defined as hemoglobin <13mg/dL for males and <11.5mg/dL for females.
• Clinical characteristics and dietary behaviors were analyzed.

Main Results:

• The prevalence of anemia increased from 4.1% pre-surgery to 26.6% post-surgery.
• Anemia rates rose more significantly in females compared to males.
• Post-surgery hemoglobin levels positively correlated with high-protein diet frequency, sugar drinks with balanced formula, alcohol consumption, and exercise (p<0.05).
• A negative correlation was observed between hemoglobin levels and iron supplement intake (p<0.01).

Conclusions:

• Patients undergoing LMGB should increase intake of high-protein foods/drinks and consume alcoholic beverages.
• Regular exercise is recommended to help prevent low hemoglobin levels after LMGB.
• Dietary modifications and lifestyle changes are crucial for managing post-bariatric surgery anemia.