Related Experiment Video
Updated: Jun 26, 2025
Neuronavigation and Laparoscopy Guided Ventriculoperitoneal Shunt Insertion for the Treatment of Hydrocephalus
Published on: October 14, 2022
Comparative Analysis of Modified BT Shunt and Central Shunt in Pediatric Patients
Mustafa Yilmaz1, Başak Soran Turkcan2, Ata Niyazi Ecevit2
1Department of Pediatric Cardiovascular Surgery, Ankara Bilkent City Hospital, Ankara, Turkey.
Insights
Modified Blalock-Taussig (MBT) shunt and central shunt (CS) are common in cyanotic heart disease. Using small, central shunts can help prevent congestive heart failure and reduce mortality in pediatric patients.
Area of Science:
- Pediatric Cardiology
- Congenital Heart Disease Surgery
- Cardiovascular Surgery
Background:
- Cyanotic congenital heart diseases represent a significant portion of all congenital heart defects.
- Modified Blalock-Taussig (MBT) shunt and central shunt (CS) remain crucial palliative procedures for unrepaired cases.
Purpose of the Study:
- To compare the efficacy and outcomes of MBT shunt versus CS in pediatric patients with cyanotic heart disease.
- To identify factors influencing postoperative outcomes, including mortality and congestive heart failure.
Main Methods:
- Retrospective analysis of 62 pediatric patients undergoing MBT shunt or CS.
- Data collected included demographics, echocardiography, operative details, and postoperative outcomes.
- Patients were categorized by cardiac anatomy, prematurity, and heterotaxy; prior interventions were noted.
Main Results:
- MBT shunt was performed in 77.4% and CS in 22.6% of patients.
- No significant differences were observed between MBT shunt and CS regarding urgent shunt needs, cardiopulmonary bypass, additional surgeries, inotrope requirements, or in-hospital mortality.
- Congestive heart failure was significantly more prevalent in patients with in-hospital mortality (66.7%) compared to survivors.
Conclusions:
- MBT shunt and CS are frequently employed palliative strategies for cyanotic heart disease.
- Employing small-diameter shunts, especially centrally placed ones, may mitigate congestive heart failure and decrease mortality rates.
Introduction:
Cyanotic congenital heart diseases constitute 40-45% of all congenital heart diseases. In patients who are not suitable for primary repair, modified BT (MBT) shunt and central shunt (CS) procedures are still frequently used.
Methods:
This study included 62 pediatric patients who underwent MBT shunt or CS via median sternotomy. Patients' demographic, echocardiographic, operative, and postoperative data were collected retrospectively. The patients were classified as single ventricle and bi-ventricle according to their cardiac anatomy, and the presence of prematurity and heterotaxy was noted. Procedure details of the patients who underwent endovascular intervention prior to the surgery were investigated, and operation data were accessed from the surgery notes. Data regarding postoperative follow-ups were obtained and comparatively analyzed.
Results:
Of the total 62 patients, 32 (51.6%) were newborns and 16 (25.8%) had a body weight < 3 kg. MBT shunt was applied to 48 patients (77.4%), while CS was applied to 14 patients (22.6%). There was no significant difference between the two surgical procedures in terms of requirement for urgent shunt or cardiopulmonary bypass, additional simultaneous surgical intervention, need for high postoperative inotropes, and in-hospital mortality (P>0.05). The rate of congestive heart failure in patients with in-hospital mortality was determined as 66.7% and it was significantly higher than in patients without heart failure (P<0.001).
Conclusion:
MBT shunt and CS are still frequently used in cyanotic patients. The use of small-diameter shunts, particularly when centrally located, can prevent the onset of congestive heart failure and lower mortality.
More Related Videos
09:23Shunt Surgery, Right Heart Catheterization, and Vascular Morphometry in a Rat Model for Flow-induced Pulmonary Arterial Hypertension
Published on: February 11, 2017
09:31Hemodynamic Precision in the Neonatal Intensive Care Unit using Targeted Neonatal Echocardiography
Published on: January 27, 2023
