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Ultrasound detection of diaphragm position in the region for lung monitoring by electrical impedance tomography during laparoscopy
K. Buzkova, M. Muller, A. Rara, K. Roubik, T. Tyll
Jazyk angličtina Země Česko
Typ dokumentu časopisecké články
NLK
Directory of Open Access Journals
od 2001
Free Medical Journals
od 1998
Medline Complete (EBSCOhost)
od 2007-06-01
ROAD: Directory of Open Access Scholarly Resources
od 2001
PubMed
29467544
DOI
10.5507/bp.2018.005
Knihovny.cz E-zdroje
- MeSH
- bránice diagnostické zobrazování MeSH
- elektrická impedance * MeSH
- hrudník diagnostické zobrazování MeSH
- laparoskopie * MeSH
- lidé středního věku MeSH
- lidé MeSH
- plíce diagnostické zobrazování MeSH
- pneumoperitoneum umělé metody MeSH
- počítačová rentgenová tomografie * MeSH
- prospektivní studie MeSH
- reprodukovatelnost výsledků MeSH
- senioři MeSH
- ventilace umělá s výdechovým přetlakem MeSH
- Check Tag
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- senioři MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
BACKGROUND AND AIMS: During laparoscopic surgery, a capnoperitoneum is created to optimize the operating space for surgeons. One effect of this is abdominal pressure which alters the physiological thoraco-abdominal configuration and pushes the diaphragm and lungs cranially. Since the lung image acquired by electrical impedance tomography (EIT) depends on the conditions within the thorax and abdomen, it is crucial to know the diaphragm position to determine the effect of diaphragm shift on EIT thorax image. METHODS: The presence of diaphragm in the region of EIT measurement was determined by ultrasound in 20 patients undergoing laparoscopic surgery. Data were obtained in the supine position during spontaneous breathing in a mechanically ventilated patient under general anesthesia with muscle relaxation and in a mechanically ventilated patient under general anesthesia with muscle relaxation during capnoperitoneum. RESULTS: The diaphragm was shifted cranially during capnoperitoneum. The diaphragm detection rate rose by 10% during capnoperitoneum at the fifth intercostal space, from 55% to 65% and by 10% from 0% at mid-sternal level compared to mechanical ventilation without capnoperitoneum. CONCLUSION: The diaphragm was detected in the area contributing to the creation of the thoracic EIT image. Considering the cranial shift of diaphragm caused by excessive intra-abdominal pressure, the impedance changes in the abdomen and the principle of EIT, we assume there could be a significant impact on EIT image of the thorax acquired during capnoperitoneum. For this reason, for lung monitoring using EIT during capnoperitoneum, the manufacturer's recommendation for electrode belt position is not appropriate. The study was registered in ClinicalTrials.gov with an identifier NCT03038061.
Citace poskytuje Crossref.org
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