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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT05904574
Other study ID # TTLBABPTU21
Secondary ID
Status Completed
Phase
First received
Last updated
Start date October 20, 2020
Est. completion date February 20, 2021

Study information

Verified date June 2023
Source Trakya University
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

In this retrospective study, investigators aimed to evaluate the effectiveness of the autologous blood patch method in percutaneous transthoracic lung biopsies performed with the coaxial technique.


Description:

In this retrospective study, investigators aimed to evaluate the effectiveness of the autologous blood patch method in percutaneous transthoracic lung biopsies performed with the coaxial technique. Biopsies and treatment modalities were performed according to approved guidelines. Ethics committee approval was obtained for the retrospective evaluation of the files and images of the participants. Written informed consent was obtained from all participants before biopsy procedures. Percutaneous transthoracic biopsies (PTB) have been started to be performed with the coaxial technique using the autologous blood patch method as of April 2019 in Interventional Radiology Department of Trakya University Hospital. All lung biopsies are performed using the blood patch method as a standard, as a clear decrease in procedural complications was observed in a short time. Thus, in this study, participants who underwent biopsy after April 2019 formed the participant group that underwent autologous blood patch, and those who had the procedure before this date formed the control group. Since autologous blood patch application was not performed before this date, participant grouping was time-dependent. All participants included in the study underwent tru-cut biopsy with the coaxial technique. Of the 240 participants included in the study, 120 were treated with an autologous blood patch ( Group A), and the remaining 120 were participants without an autologous blood patch (Group B). Procedure: All biopsy procedures were performed by four interventional radiologists with at least 2 years of experience. First of all, after determining the lung lobe where the lesion was observed, axial CT images of 5 mm cross-section thickness were obtained so that the upper and lower parts of it could be visualized. After ruling the entry site in the skin, antisepsis and local anesthesia were performed. The coaxial system (17 G) was cautiously advanced and CT images were continuously evaluated to confirm entrance into the lesion. Approximately 3-4 pieces were taken with the 18 G core biopsy needle until sufficient tissue was obtained. In the autologous blood patch technique, approximately 6-7 ml of blood was taken from the participants with a 10 ml syringe before the procedure. By attaching a 3-way tap to the injector from which the blood is drawn, blood is drawn into a second injector to ensure that the clotted blood is dispersed and homogenized. After the above-mentioned procedures, and after sufficient tissue samples were taken at the last stage of the biopsy procedure, control CT imaging, including the whole lung, was performed to evaluate complications. The presences of pneumothorax were noted. The prepared autologous blood patch was given through the coaxial needle (approximately 1 ml of autologous blood patch was applied for every 1 cm when the coaxial needle was withdrawn) and the tract formed by the biopsy needle in the parenchyma, pleura, and under the skin was closed with the participant's autologous blood. Thus, it was aimed at preventing pneumothorax or reducing its severity if it occurred. The tract formed by the given autologous blood patch into the parenchyma can be observed in most biopsies. The lesion and lung parenchyma features, pneumothorax and other complications of the participants included in the study were evaluated through biopsy planning and follow-up images in hospital medical record system. It is known that transthoracic lung biopsies performed with the coaxial technique increase the diagnostic accuracy. In addition, by obtaining more than one tissue piece with a single entry, more tissue pieces can be sampled for histopathological studies as well as molecular and genetic analysis, which has become increasingly important recently. As a result, investigators think that the use of this method will increase, as more tissue material can be obtained in percutaneous transthoracic lung biopsies performed with coaxial technique and computed tomography using the autologous blood patch method, while reducing the risk of pneumothorax, the most common complication, at the same time.


Recruitment information / eligibility

Status Completed
Enrollment 240
Est. completion date February 20, 2021
Est. primary completion date November 20, 2020
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Patients older than 18 years - Patients who underwent percutaneous transthoracic tru cut biopsy - Patients undergoing interventional procedures by radiologists with equal experience - Patients who were able to obtain sufficient samples with the applied biopsy (technical success of percutaneous transthoracic biopsy) - Patients whose medical records are fully accessible and whose data are reliable Exclusion Criteria: - Patients whose laboratory bleeding parameters are not suitable for the procedure (platelets<100000/mm3, INR>1.5) - Pregnancy - Patients with increased risk of pneumothorax due to other etiologies (bulla, blep, chronic obstructive pulmonary disease, cystic fibrosis) - Patients receiving anticoagulant antiplatelet therapy - Patients with persistent cough - Patients with a history of recent lung travma, pneumothorax, hemoptysis or pulmonary hemorrhage - Patients with severe psychiatric diseases such as psychosis or dementia that limit cooperation with the patient - Patients with anatomic deformity (advanced scoliosis and kyphotic patients. Patients with pectus carinatum and pectus excavatum-like chest deformity) - Patients for whom tru cut biopsy is absolutely and relative contraindicated (suspected hydatid cyst or known vascular lesions such as arteriovenous malformation, pulmonary varicose, severe obstructive pulmonary disease, coagulopathy, moderate to severe pulmonary hypertension, ventilator dependence, unilateral pneumectomy) - Patients allergic to local anesthetic drug used for skin and subcutaneous tissue anesthesia - Patients who do not want to participate

Study Design


Related Conditions & MeSH terms


Intervention

Other:
Autologous blood patch
Approximately 3-4 pieces were taken with the 18 G core biopsy needle until sufficient tissue was obtained. In the autologous blood patch technique, approximately 6-7 ml of blood was taken from the patient with a 10 ml syringe before the procedure. By attaching a 3-way tap to the injector from which the blood is drawn, blood is drawn into a second injector to ensure that the clotted blood is dispersed and homogenized. The prepared autologous blood patch was given through the coaxial needle (approximately 1 ml of autologous blood patch was applied for every 1 cm when the coaxial needle was withdrawn) and the tract formed by the biopsy needle in the parenchyma, pleura, and under the skin was closed with the patient's autologous blood.
Percutaneous transthoracic biopsy
After determining the lung lobe where the lesion was observed, axial CT images of 5 mm cross-section thickness were obtained so that the upper and lower parts of it could be visualized. After ruling the entry site in the skin, antisepsis and local anesthesia were performed. The coaxial system (17 G) was cautiously advanced and CT images were continuously evaluated to confirm entrance into the lesion. Biopsy was taken and after sufficient tissue samples were taken at the last stage of the biopsy procedure, control CT imaging, including the whole lung, was performed to evaluate complications. The presences of pneumothorax were noted.

Locations

Country Name City State
Turkey Trakya University Edirne

Sponsors (1)

Lead Sponsor Collaborator
Trakya University

Country where clinical trial is conducted

Turkey, 

References & Publications (5)

Casal-Mourino A, Valdes L, Barros-Dios JM, Ruano-Ravina A. Lung cancer survival among never smokers. Cancer Lett. 2019 Jun 1;451:142-149. doi: 10.1016/j.canlet.2019.02.047. Epub 2019 Mar 6. — View Citation

Heerink WJ, de Bock GH, de Jonge GJ, Groen HJ, Vliegenthart R, Oudkerk M. Complication rates of CT-guided transthoracic lung biopsy: meta-analysis. Eur Radiol. 2017 Jan;27(1):138-148. doi: 10.1007/s00330-016-4357-8. Epub 2016 Apr 23. — View Citation

Hiraki T, Mimura H, Gobara H, Shibamoto K, Inoue D, Matsui Y, Kanazawa S. Incidence of and risk factors for pneumothorax and chest tube placement after CT fluoroscopy-guided percutaneous lung biopsy: retrospective analysis of the procedures conducted over — View Citation

Marshall D, Laberge JM, Firetag B, Miller T, Kerlan RK. The changing face of percutaneous image-guided biopsy: molecular profiling and genomic analysis in current practice. J Vasc Interv Radiol. 2013 Aug;24(8):1094-103. doi: 10.1016/j.jvir.2013.04.027. Ep — View Citation

Siegel RL, Miller KD, Jemal A. Cancer statistics, 2020. CA Cancer J Clin. 2020 Jan;70(1):7-30. doi: 10.3322/caac.21590. Epub 2020 Jan 8. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Pneumothorax incidence Development of pneumothorax after biopsy as a complication first 24 hours
Secondary Chest tube placement incidence Incidence of patients needing chest tube after biopsy Immediately after procedure
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