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[Catheter drainage of late cardiac tamponade guided by computed tomography]
T Sugimoto1, T Shimanuki, T Minowa
1Department of Surgery, Yamagata Prefectural Nihonkai Hospital, Yamagata, Japan.
Insights
Computed tomography (CT) aids in non-operative drainage of delayed cardiac tamponade after surgery. This imaging technique helps classify pericardial effusions into four types for precise catheter insertion and treatment planning.
Area of Science:
- Cardiology and Cardiac Surgery
- Medical Imaging
Context:
- Delayed cardiac tamponade is a rare but severe complication following cardiac surgery.
- Echocardiography and computed tomography (CT) are standard diagnostic tools for pericardial effusions.
Purpose:
- To evaluate the utility of CT-guided catheter insertion for non-operative drainage of symptomatic postoperative pericardial effusion.
- To establish a classification system for pericardial effusions based on fluid distribution to guide intervention.
Summary:
- Seven patients with symptomatic postoperative pericardial effusion underwent successful CT-guided catheter drainage.
- A four-type classification system (Type 1: general, Type 2: right-sided, Type 3: left-sided, Type 4: apical) was proposed based on effusion distribution.
- CT imaging was crucial for localizing effusions, assessing size, and determining optimal catheter insertion pathways, especially for loculated fluid.
Impact:
- CT-guided pericardiocentesis offers a viable non-operative treatment for delayed cardiac tamponade.
- The proposed classification aids in precise procedural planning and improves the management of complex pericardial effusions.
- This approach enhances patient care by providing a targeted and effective method for managing post-cardiac surgery effusions.
Abstract:
Delayed cardiac tamponade is an unusual but serious complication of cardiac surgery. Echocardiography and computed tomography (CT) are well established methods for the detection of pericardial effusions. Catheter insertion guided by CT has been used to accomplish non operative drainage of symptomatic postoperative pericardial effusion in seven cases. These patients were grouped into four types according to distribution of the fluid. General pericardial effusion around the heart is classified as type 1, effusion adjacent to the right side of the heart as type 2 and left side as type 3, effusion localized only at the apex as type 4. CT imaging is useful not only to localize and assess the size of the effusions, but also to select the way of catheter insertion. As the fluid might be trapped in compartments, for instance right-sided or left sided type, investigation of the pericardial spaces is important in planning a catheter pericardiocentesis.