When one port does not return blood: two case reports of rare causes for misplaced central venous catheters

Sandra Pereira; César Preto; Carla Pinho; Pedro Vasconcelos

doi:10.1016/j.bjane.2014.02.007

Clinical Information

When one port does not return blood: two case reports of rare causes for misplaced central venous catheters

Quando uma porta não apresenta retorno sanguíneo: relato de dois casos de causas raras de mau posicionamento de cateter venoso central

Sandra Pereira; César Preto; Carla Pinho; Pedro Vasconcelos

http://dx.doi.org/10.1016/j.bjane.2014.02.007 Braz J Anesthesiol, vol.66, n1, p.78-81, 2016

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Abstract

We present two cases of misplaced central venous catheters having in common theabsence of free blood return from one lumen immediately after placement. The former is acase of right hydrothorax associated with central venous catheterization with the catheter tipin intra-pleural location. In this case the distal port was never patent. In the latter case therewas an increased aspiration pressure through the middle port due to a catheter looping.The absence of free flow on aspiration from one lumen of a central catheter should not beundervalued. In these circumstances the catheter should not be used and needs to be removed.

Keywords

Central venous catheter, Hydrothorax, Looping, Malposition

Resumo

Apresentamos dois casos de mau posicionamento de cateter venoso central. Têmem comum a ausência do retorno sanguíneo livre em um dos lúmens imediatamente após acolocac¸ão. O primeiro é um caso de hidrotórax direito associado ao cateterismo venoso central,com a ponta do cateter em localizac¸ão intrapleural. Nesse caso, a porta distal nunca estevepatente. No segundo caso houve um aumento da pressão de aspirac¸ão através da porta medialpor causa da formac¸ão de alc¸a no cateter.A ausência de fluxo livre na aspirac¸ão de um lúmen do cateter central não deve ser subesti-mada. Nessas circunstâncias, o cateter não deve ser usado e deve ser removido.

Palavras-chave

Cateter venoso central, Hidrotórax, Alça, Mau posicionamento

References

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When one port does not return blood: two case reports of rare causes for misplaced central venous catheters

Quando uma porta não apresenta retorno sanguíneo: relato de dois casos de causas raras de mau posicionamento de cateter venoso central

Sandra Pereira; César Preto; Carla Pinho; Pedro Vasconcelos

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