Cardiac tamponade and successful pericardiocentesis in an extremely low birth weight neonate with percutaneously inserted central venous line: a case report
© Pizzuti et al; licensee BioMed Central Ltd. 2010
Received: 30 November 2009
Accepted: 11 January 2010
Published: 11 January 2010
Pericardial effusion and cardiac tamponade are rare but life-threatening complications of percutaneosuly inserted central line (PICL) use in extremely low birth weight (ELBW) neonates, with an incidence reported between 0.07% and 2% of PICLs placement. Timely diagnosis and pericardiocentesis has been proven to be life-saving.
The patient was a 620 g birth weight neonate who presented with sudden cardiac instability 18 days after the insertion of a PICL and in spite of a presumed satisfactory position of the catheter tip.
The transthoracic echocardiography demonstrated severe pericardial effusion with evidence of cardiac tamponade.
Successful urgent subxiphoid pericardiocentesis was performed; totally 2 ml of whitish fluid was collected, which resulted consistent to the composition of the hyperosmolar TPN solution infused.
Cardiac tamponade should be considered in any newborn with a peripherally inserted central catheter who presents with cardiorespiratory instability (bradycardia, cyanosis and metabolic acidosis), even when lines are believed to be placed correctly.
Percutaneously inserted central lines (PICLs) are commonly used in neonatal intensive care units (NICU) to provide parenteral nutrition and medications for extremely low birth weight (ELBW) infants. PICLs have been associated with a number of device-specific complications (occlusion, infection, thrombosis, breakage, migration, displacement) including rare but life-threatening complications such as pericardial effusion and cardiac tamponade.
Incidence of pericardial effusion/cardiac tamponade has been previously reported in literature between 0.07% and 2% of PICLs placement [1–8]. Pericardial effusion may be more likely when the catheter tip is placed within the heart outline on X-ray examination; however, positioning the tip outside the heart does not completely prevent it.
As timely diagnosis and pericaridocentesis has been proven to be life-saving, this complication should be considered in any newborn with an inserted central line who presents with cardiorespiratory instability.
We report the case of a successful pericardiocentesis performed in a ELBW neonate who presented with cardiac tamponade 18 days after the placement of a PICL.
A 620 g Caucasian female, was delivered at our Hospital after 25 weeks of gestation by caesarean section secondary to maternal congestive heart failure from dilated cardiomiopathy. Apgars were 9 and 9 at 1 and 5 minutes, respectively. She was intubated at birth and received surfactant. A 27 G polyurethane (PremiCathP) central venous catheter was inserted through the right basilic vein on day 1. Chest X-ray after insertion confirmed optimal positioning, the catheter tip being at the junction of inferior vena cava and right atrium. The neonate was mechanically ventilated for 14 days and then started nasal continuous positive airway pressure (CPAP) ventilation.
On day 18 the baby weight was 670 g. She was still on CPAP with a FiO2 of 0.4 and a PEEP of 4 cmH2O. Arterial blood gas analysis showed good parameters (pH: 7.3, pCO2: 56 mmHg, PO2 39 mmHg), oxygen saturation values were stable (97%). The neonate was on partial parenteral nutrition, receiving 50 ml of formula milk and 36 ml of parenteral nutrition administered via the peripheral venous route. Unexpectedly, at 10:30 p.m. the infant started presenting worse saturations (92-94%) and her oxygen requirement increased form 0.4 to 0.6. At 12:00 p.m. she suddenly became pale, presented repeated and prolonged desaturations and needed to be ventilated. Despite an improvement in oxygen saturation immediately after positive-pressure ventilation (PPV) with bag and mask, the infant's clinical conditions worsened again and she needed to be reintubated. Chest X-ray showed the catheter tip at the connection of the inferior vena cava with the right atrium and no lung opacities. Regardless of synchronized intermittent mandatory ventilation (SIMV) (PIP 18, PEEP 3, FiO2 65%, rate 38, Ti 0.35), at 1.00 a.m. there was a sudden deterioration with cardiorespiratory instability: the oxygen requirement increased up to 0.9 and the baby developed bradycardia (70 bpm). Brachial arterial pressure was not detectable. Lung auscultation revealed coarse crakles, while cardiac auscultation revealed "distant" heart sounds. Dopamine (5 μg/kg per min) and furosemide (1.2 mg "una tantum") were administered.
Additional file 1: Echocardiogram, 1:53 a.m. 2D-Echocardiogram, subcostal view: massive pericardial effusion. (MOV 886 KB)
Additional file 2: Echocardiogram, 1:56 a.m. 2D-Echocardiogram, subcostal view. Swinging heart with collapse of right cavities and severely depressed contractility (MOV 1 MB)
Additional file 3: Echocardiogram, 1:59 a.m. 2D-Echocardiogram, subcostal view, during pericardiocentesis. Reduced pericardial effusion and improvement of right heart filling and contractility. (MOV 885 KB)
Additional file 4: Echocardiogram, 2:10 a.m. 2D-Echocardiogram, subcostal view. Further improvement of filling and contractility (MOV 880 KB)
Additional file 5: Echocardiogram, 8:28 a.m. 2D-Echocardiogram, subcostal view. Mild pericardial effusion with normal filling and contractility. (MOV 877 KB)
The subsequent clinical course of the baby was uneventful. One year follow up echocardiograms showed no re-accumulation of the fluid and normal cardiac filling and contractility.
In the case of this ELBW neonate with PICL who presented with cardiac tamponade, timely diagnosis and pericaridocentesis using echocardiography resulted successful. Our experience shows that basic echocardiography is an easily accessible bedside assessment tool that may be life-saving and that subxiphoid percutaneous approach for the dreinage of pericardial effusion is safe, effective and easily performed even in a ELBW neonate.
As an emergency treatment may be life saving, cardiac tamponade must be kept in mind as a cause of sudden deterioration of very low birth weight neonates and promptly diagnosed. In this case report, the complication occurred 18 days after the placement of the central line and in spite of a presumed satisfactory position of the catheter tip. Thus, cardiac tamponade should be considered in any newborn with a peripherally inserted central catheter who presents with sudden deterioration, even when lines are believed to be placed correctly.
Written informed consent was obtained from the parents of the patient for publication of this case reports and accompanying images and videos. A copy of written consent is available for review by the journal's Editor-in-Chief.
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