Usefulness of High Suction Pressure for Sufficient Tissue Collection During Endobronchial Ultrasound Guided Transbronchial Needle AspirationReport as inadecuate




Usefulness of High Suction Pressure for Sufficient Tissue Collection During Endobronchial Ultrasound Guided Transbronchial Needle Aspiration - Download this document for free, or read online. Document in PDF available to download.

Introduction

The optimal suction pressure during endobronchial ultrasound guided transbronchial needle aspiration EBUS-TBNA remains to be determined. The aim of this study was to compare suction pressures for performance in collecting sufficient tissue specimens from mediastinal and hilar lymph nodes during EBUS-TBNA.

Methods

Retrospective analysis of consecutive patients with mediastinal and hilar lymphadenopathy who underwent EBUS-TBNA over a 3-year period. Results from patients who underwent EBUS-TBNA using a dedicated 20-mL VacLoc Merit Medical Systems, Inc, South Jordan, UT syringe conventional method, group C were compared with results from patients in whom a disposable 30-mL syringe high pressure group, group H was used. The yield for sufficient histologic specimen retrieval and amount of tissue obtained were compared between the 2 groups.

Results

Of 178 patients who underwent EBUS-TBNA, 131 had lung cancer confirmed by EBUS-TBNA: 35 in group C and 96 in group H. There were 7 patients in group C and 6 in group H who received final diagnoses by cytology alone. There were 28 in group C and 90 in group H who were diagnosed by both cytology and histology. There was a statistically significant difference between the groups in terms of the rate of sufficient sampling for histological specimens p = 0.04. The H group revealed a tissue area approximately twice that of the C group p = 0.003. There were no major procedure-related complications in either group.

Conclusion

Higher suction pressures with larger syringe volumes during EBUS-TBNA may be useful for safely collecting sufficient tissue specimens.



Author: Takayuki Shiroyama , Norio Okamoto, Hidekazu Suzuki, Motohiro Tamiya, Tadahiro Yamadori, Naoko Morishita, Tomoyuki Otsuka, Satomu

Source: http://plos.srce.hr/



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