Echocardiography-guided pericardiocentesis is a procedure commonly performed by cardiologist
to evaluate pericardial effusions. It is generally considered a relatively safe procedure
with minimal complications and a high success rate [1]
[2]
[3]. However, a safe approach to the pericardial effusion may on occasion not be possible.
Endoscopic ultrasound (EUS) is capable of better visualization of the pericardium
and left atrium. This is the first report to highlight the use of EUS-guided pericardiocentesis
as an alternative method to the echocardiography-guided procedure.
A 76-year-old man presented with chest discomfort and suspected pericardial effusion
on a chest radiograph ([Fig. 1]). A computed tomography (CT) scan of his chest demonstrated a large volume pericardial
effusion located in the posterior sac ([Fig. 2]). Conventional echocardiography-guided pericardiocentesis was attempted by an experienced
cardiologist but was unsuccessful owing to the lack of effusion in the anterior sac,
as had been previously shown on chest CT scan.
Fig. 1 Chest radiograph of a 76-year-old man who presented with chest discomfort showing
a large cardiac shape.
Fig. 2 Chest computed tomography (CT) scan showing a large volume pericardial effusion,
most of which is located within the posterior sac.
Having given his informed consent, the patient underwent an EUS-guided pericardiocentesis.
With the patient in a supine position, a safe puncture route away from cardiac movement
was identified ([Fig. 3 a]). The puncture was performed from the lower esophagus using a 22-gauge needle ([Fig. 3 b]) and 100 mL of fluid was successfully obtained. The fluid was clear and yellowish,
with normal results on biochemical testing, negative cytology, and negative cultures
for bacterial and acid-fast bacillus.
Fig. 3 Endoscopic ultrasound (EUS) image showing: a an anechoic fluid-filled space in the pericardial sac and the wide puncture window
that could be identified away from cardiac movement; b the effusion being punctured from the esophagus and aspirated with a 22-gauge needle.
To reduce the risk of complications, intravenous antibiotics were given before the
procedure to prevent procedural infection. During and after the procedure the patient
was carefully monitored and remained free of chest discomfort. No early or late complications
such as infection, arrhythmia, heart failure, or bleeding occurred. A repeat chest
radiograph 2 months later revealed a smaller cardiac silhouette ([Fig. 4]).
Fig. 4 Chest radiograph performed 2 months later showing a smaller cardiac shape.
There are some cases that are challenging for percutaneous echocardiography-guided
pericardiocentesis as it is not possible to obtain a clear puncture route because
of the narrow window. EUS-guided pericardiocentesis may be a potential alternative
if echocardiography-guided pericardiocentesis fails. Transbronchial pericardiocentesis
has also been reported as an alternative method to echocardiography-guided pericardiocentesis
[4].
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