Randomized Controlled Trial of Aspiration Needle versus Automated Biopsy Device for Transjugular Liver Biopsy

https://doi.org/10.1016/S1051-0443(07)61479-1Get rights and content

PURPOSE

The efficacy and safety of transjugular liver biopsy used to obtain liver specimens in patients with coagulation disorders have been widely proven. However, histopathologic examination is not always possible because of fragmented samples provided by the aspiration technique. Recently, an automated device with a Tru-Cut–type needle was designed. In this randomized controlled trial, the use of this new device is compared with the traditional method in terms of efficacy and safety.

METHOD

Fifty-six patients were included in the study; 28 were randomized to undergo the aspiration technique and 28 were randomized to undergo the automated biopsy technique.

RESULTS

Correct positioning of the device was achieved in 93% of patients undergoing the aspiration technique and 96% of patients undergoing the automated biopsy technique (P = NS). Mean duration of the procedure and total number of passes were significantly higher in the aspiration needle group than in the automated device group (22.6 min ± 12.6 vs 15.5 min ± 9.4; P = .03, and 3.3 min ± 1.9 vs 1.5 min ± 0.63; P < .001, respectively). The number of portal tracts was significantly higher in the automated device group (4.7 ± 2.5 vs. 2.7 ± 3.4; P < .05). Adequate specimens for histopathologic evaluation were obtained in 26 patients in the automated device group and 24 patients in the aspiration needle group (92.8% vs 85.7%; P = NS), but a definite histopathologic diagnosis was more frequently obtained with the automated biopsy device (68% vs 43%; P = .05). No significant differences were observed in complication rates (7.14% vs. 10.7%; P = NS).

CONCLUSIONS

The automated biopsy device for transjugular liver biopsy is more effective than an aspiration needle in obtaining good samples for a definite histologic diagnosis.

Section snippets

Patients

Fifty-six consecutive patients who presented to our Hepatic Hemodynamics laboratory for transjugular liver biopsy between September 1996 and February 1998 were included in the study. All the patients gave their consent after being provided full information of the characteristics of the study. The study was approved by the Ethical Committee of our hospital and was conducted in accordance with principles of the Declaration of Helsinki.

Patients were randomly allocated to undergo transjugular liver

RESULTS

Samples for histopathologic examination were taken in 26 patients in the automated needle group and in 24 patients in the aspiration needle group. In one patient in the automated device group and in two patients in the aspiration group, correct position of the biopsy device into the hepatic vein could not be achieved. The specimens obtained were too small for histologic examination in two patients in the aspiration needle group and one patient in the automated needle group (Table 2).

The mean

DISCUSSION

Transjugular liver biopsy is an efficacious, safe, and widely accepted procedure to obtain liver tissue when the percutaneous approach is contraindicated (1, 2, 3, 4). This procedure allows the retrieval of an adequate liver sample in the majority of cases.

However, the major limitation of the classic aspiration technique is fragmentation of the sample, which precludes a definite diagnosis of the architecture of the liver in a high percentage of cases (2), particularly in patients with marked

References (12)

There are more references available in the full text version of this article.

Cited by (38)

  • Transjugular Liver Biopsy

    2021, Techniques in Vascular and Interventional Radiology
    Citation Excerpt :

    Several studies have also shown high rates of adequate histologic samples are able to be obtained with TJLB, similar to those obtained by a percutaneous or even surgical route, despite the smaller gauge and fewer CPTs.20,39-41 It should be noted that these equivalent rates are with the core biopsy needles such as those found in the TJLB kit; aspiration utilizing a Colapinto needle has been found to have inferior adequacy.42,43 In conclusion, TJLB is an important alternative to percutaneous nonfocal liver tissue biopsies.

  • Comparison of the diagnostic quality of aspiration and core-biopsy needles for transjugular liver biopsy

    2020, Digestive and Liver Disease
    Citation Excerpt :

    Other studies report similar length and number of PT, but a higher percentage of incomplete PT. [11] In TJLB, studies reported longer [12–14] and less fragmented samples [13,14], together with more PT [15] as well as a higher possibility of adequate specimens using core-biopsy needles. [12,13] However, in our experience aspiration biopsy needles of larger diameter yield good results in some patients with chronic liver disease, usually in lower stages of fibrosis. [16]

  • Transvenous Pressure Measurements and Liver Biopsy

    2020, Image-Guided Interventions: Expert Radiology Series, Third Edition
  • Transjugular liver biopsy

    2014, Clinics in Liver Disease
  • Transjugular liver biopsy: Indications, technique and results

    2014, Diagnostic and Interventional Imaging
    Citation Excerpt :

    At present only the Quick-Core® Biopsy Needle has been studied by a large number of studies (Fig. 2) [21]. The other system (FlexCore® Biopsy Needle) has been the subject of only a few comparative studies, but the comparison was in favor of the FlexCore® system in terms of fragmentation and number of portal triads in the specimens [20,21]. The hepatic pressure gradient is obtained by measuring the wedge pressure and the free hepatic venous pressure [22].

  • Liber biopsy

    2012, Medicine (Spain)
View all citing articles on Scopus
View full text