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[Natural history of gastric varices and risk factors for bleeding]
Choong Hyeon Lee1, Joon Hyoek Lee, Yong Sung Choi
1Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
Insights
Gastric varices (GV) bleeding is a serious complication of portal hypertension. Large GV and poor liver function are key risk factors for bleeding in Korean patients, necessitating close monitoring.
Area of Science:
- Gastroenterology
- Hepatology
- Internal Medicine
Background:
- Gastric varices (GV) are a severe complication of portal hypertension.
- Limited data exists on the clinical course of GV in the Korean population.
- Understanding the natural history of GV is crucial for patient management.
Purpose of the Study:
- To investigate the natural history of gastric varices (GV) bleeding in Korean patients.
- To identify risk factors associated with GV bleeding.
- To evaluate long-term survival rates in patients with GV.
Main Methods:
- Retrospective analysis of 237 Korean patients diagnosed with GV between 1995 and 2005.
- Exclusion of patients with prior variceal bleeding or interventions.
- Evaluation of cumulative incidence of GV bleeding, survival rates, and risk factors.
Main Results:
- The cumulative incidence of GV bleeding was 4.8% at 1 year, 19.9% at 3 years, and 23.2% at 5 years.
- Overall survival rates were 88.6% (1 year), 53.2% (5 years), and 37.2% (10 years).
- Independent risk factors for GV bleeding included large GV (HR 2.49) and poor liver function (Child-Pugh B/C, HR 3.95).
Conclusions:
- Gastric varices bleeding is more common in patients with fundal varices compared to type 1 gastroesophageal varices.
- Large GV size and impaired liver function are significant predictors of GV bleeding.
- High-risk patients require vigilant observation and prophylactic measures against variceal bleeding.
Background/Aims:
Gastric varices (GV) are one of the most serious complications of portal hypertension, but there is limited information on the clinical course of GV in Korea. The aim of this study was to elucidate the natural history of GV bleeding in Korean patients.
Methods:
Of 604 patients with GV diagnosed between May 1995 and May 2005 at the Samsung Medical Center, 237 patients without a history of variceal bleeding or previous intervention for varices were investigated. The cumulative incidence rates of GV bleeding, long-term survival rates, and risk factors for GV bleeding were evaluated.
Results:
The cumulative incidence rates of GV bleeding were 4.8%, 19.9%, and 23.2% at 1, 3, and 5 years after diagnosis, respectively. The overall survival rates were 88.6%, 53.2%, and 37.2% at 1, 5, and 10 years. In the univariate analysis, fundal varices, large (F3) GV, red color sign, and poor liver function (Child-Pugh class B or C) were significant risk factors for GV bleeding. In the multivariate analysis, large GV (hazard ratio 2.49) and poor liver function (hazard ratio 3.95) were the independent risk factors.
Conclusions:
GV bleeding was more frequent in patients with fundal varices than in patients with type 1 gastroesophageal varices, and large GV and poor liver function were risk factors for GV bleeding. Close observation and prophylaxis for variceal bleeding might be warranted in high-risk patients.
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