Cardiocirculatory changes during videolaparoscopy in children: an echocardiographic study

Area of Science:

• Pediatric Anesthesiology
• Cardiovascular Physiology
• Minimally Invasive Surgery

Background:

• Laparoscopic surgery is increasingly common in pediatric patients.
• Intra-abdominal insufflation (pneumoperitoneum) is a key component of laparoscopic procedures.
• Understanding the cardiovascular effects of pneumoperitoneum in children is crucial for anesthetic management.

Purpose of the Study:

• To investigate the cardiovascular changes associated with intra-abdominal insufflation in pediatric patients undergoing laparoscopic surgery.
• To assess the impact of pneumoperitoneum on cardiac volumes, function, and loading conditions in children.

Main Methods:

• Echocardiography with a transthoracic approach was used to evaluate cardiovascular parameters.
• 20 children (mean age 6.1 years, ASA physical status I or II) were studied.
• Intra-abdominal pressure was maintained below 10 mmHg.

Main Results:

• Systolic blood pressure, diastolic blood pressure, end-tidal CO2, and airway pressures significantly increased.
• Left ventricular end-diastolic volume, left ventricular end-systolic volume, and left ventricular end-systolic meridional wall stress increased.
• Left ventricular fractional shortening and ejection fraction showed slight, insignificant changes.

Conclusions:

• Pneumoperitoneum in children significantly impacts cardiac volumes and function, primarily by altering ventricular load conditions.
• Increased intra-abdominal pressure affects both preload and afterload.
• Systolic cardiac performance is maintained despite these hemodynamic changes.