Journal of Cancer Research and Therapeutics

CASE REPORT
Year
: 2020  |  Volume : 16  |  Issue : 5  |  Page : 1182--1185

Seven case reports on the prevention of hemorrhage after percutaneous computed tomography-guided core-needle biopsy of the spleen


Run-Qi Guo, Xiao-Guang Li 
 Minimally Invasive Tumor Therapies Center, National Center of Gerontology, Chinese Academy of Medical Sciences, Institute of Geriatric Medicine, Beijing Hospital, Beijing, China

Correspondence Address:
Xiao-Guang Li
No. 1 Dongdan Dahua Street, Dongcheng District, Beijing 100730
China

Abstract

In this study, we reported seven patients who underwent diagnostic evaluation through core-needle biopsy (CNB) of the spleen. After biopsy, gelatin sponge particles mixed with hemocoagulase were gradually injected using a coaxial introducer needle. One patient received microwave ablation following the CNB. All patients were followed up by computed tomography to rule out bleeding or accidental injuries both immediately after the biopsy and within 24 h. Adequate specimens for pathologic examination were obtained from all patients, and the biopsy technical success rate was 100%. No serious complications were observed in our case series. There was no evidence of postbiopsy bleeding. Therefore, injection of gelatin sponge particles mixed with hemocoagulase or microwave ablation may be effective options to prevent hemorrhage after splenic core-needle biopsies.



How to cite this article:
Guo RQ, Li XG. Seven case reports on the prevention of hemorrhage after percutaneous computed tomography-guided core-needle biopsy of the spleen.J Can Res Ther 2020;16:1182-1185


How to cite this URL:
Guo RQ, Li XG. Seven case reports on the prevention of hemorrhage after percutaneous computed tomography-guided core-needle biopsy of the spleen. J Can Res Ther [serial online] 2020 [cited 2020 Nov 28 ];16:1182-1185
Available from: https://www.cancerjournal.net/text.asp?2020/16/5/1182/296449


Full Text



 Introduction



Splenic disorders are usually diagnosed through a combination of hematologic and radiologic assessment. Splenic biopsy is reserved for those with unexplained abnormalities and is considered in the presence of a known underlying malignancy.[1] In such cases, splenic biopsy is performed when there is no other safe accessible site to obtain tissue samples.[2] In the past, radiologists have cautiously performed image-guided percutaneous splenic biopsy due to accessibility, as well as the risk of hemorrhage and damaging the surrounded structures. With the development of the technique, core-needle biopsy (CNB) using a coaxial biopsy system is widely used, even in ground-glass opacities.[3] At our institution, percutaneous computed tomography (CT)-guided CNB of the spleen is often requested in cases where the spleen is the only accessible biopsy site. In this article, we reported seven cases from our initial experience of preventing hemorrhage after splenic CNB.

 Case Report



The report included seven patients who underwent splenic CNB for diagnostic evaluation between January 2017 and December 2018 at our institution. There were more males than females in the series (5M/2F), with an average age of 60 years (31–88 years). Six patients presented with multiple splenic nodules (largest size of nodule, 7.9 cm × 8.0 cm × 9.1 cm), and one patient had nonmass-forming isolated splenomegaly detected on CT scan. Clinical features leading to initiation of imaging techniques included fever (n = 3) or abdominal pain (n = 2) or incidental discovery of the lesions (n = 2). [Table 1] summarizes the main data from the patients.{Table 1}

At the time of biopsy, the patients received local anesthesia with buffered 1% lidocaine, and an enhanced CT was required. All CNB procedures were performed under CT guidance using a 16- or 18-gauge full core biopsy instrument consisting of a 15- or 17-gauge coaxial introducer needle (Argon Medical Devices). The biopsy specimens were fixed in 10% buffered formalin for histologic evaluation or direct submission for immunochemical or cytogenetic evaluation. After biopsy, approximately 5 ml of 1400–2000-μm gelatin sponge particles mixed with hemocoagulase was gradually injected through the coaxial introducer needle [Figure 1]. Only one patient received microwave ablation following CNB [Figure 2]. CT was performed to rule out the presence of bleeding or accidental injuries, both immediately after the biopsy and as a follow-up examination within 24 h, as required. After the procedure, blood pressure and pulse rate were recorded every 30 min for 6 h.{Figure 1}{Figure 2}

Adequate specimen for pathologic examination was obtained from all patients, and the biopsy technical success rate was 100%. The pathology results demonstrated B cell lymphoma in four patients, T-cell lymphoma in two patients, and a metastasis from neuroendocrine tumor in one patient. Four patients underwent chemotherapy with or without targeted therapy, one patient underwent splenectomy, one patient underwent gastroscopy for further diagnosis, and one patient died of malignant lymphoma after diagnosis without any treatment.

No serious complication was observed in our case series. There was no evidence of postbiopsy bleeding [Figure 3]. All patients suffered short-duration mild abdominal pain after the CNB procedures. According to the visual analog scale, only one patient had a score of four, which means that the pain was manageable with medicine.{Figure 3}

 Discussion



Splenic biopsy has been regarded as a high-risk procedure with potential complications; however, recent case series have shown that there is a relatively low incidence of complications, but these have mainly focused on splenic fine needle aspiration (FNA).[3],[4] The potential differences in imaging modalities, biopsy techniques, and terminology used in reporting complications may confound the attempts to draw conclusions about the safety and efficacy of CNB from such data. In 2011, a large meta-analysis examined the incidence of complications for FNA and CNB, and found an overall complication rate of 4.2%, with a major complication rate of 2.2%. These numbers for CNB alone increased to 5.8% and 3.2%, respectively, with hemorrhage as the most common complication.[5] In our series, we did not encounter any major complication, especially bleeding that requires immediate interventions.

Hemocoagulase has thrombin- and thromboplastin-like action on blood coagulation, which shortens the bleeding and coagulation time so that blood loss is decreased. The principle of tract embolization with hemocoagulase revolves around activating platelets through direct contact of hemocoagulase with the wound, converting fibrinogen into fibrin, and forming stable clots. Gelatin sponge particles are nontoxic, inexpensive materials that have been widely used. Tran et al.[6] deployed plugs of this material to seal the tract and decreased the severity of pneumothorax after lung biopsy. Gelatin sponge particles combined with hemocoagulase exert synergistic hemostasis, accelerate coagulation, and shorten the procedure time.

In addition, one patient over 80 years old received microwave ablation immediately after the biopsy. Microwave ablation is an effective therapeutic technique that has been successfully adopted as a treatment modality for primary and metastatic tumors of the liver, kidney, and lung, with acceptably low complication rates.[7],[8],[9] Theoretically, microwave ablation as a treatment for splenic tumors may offer more potential benefits compared with other ablation methods, including radiofrequency ablation and cryoablation: (1) microwave has a larger ablation heating zone; (2) microwave is also less affected by the perfusion median “heat-sink” effect; and (3) an internally cooled antenna for microwave ablation is capable of deeply distributing the heat in the tissue, resulting in larger ablated volumes and better hemostasis, without causing skin burns.

Based on our experience in performing biopsy techniques, we have conducted, to the best of our knowledge, the first case series involving hemorrhage prevention after percutaneous splenic CNB. In addition, tract embolization using gelatin sponge particles mixed with hemocoagulase was first reported in splenic biopsy, which is a safe and effective prevention option. However, we must acknowledge some limitations in the current case report. Clearly, prospective study data are needed to validate our strategy.

In conclusion, injection of gelatin sponge particles mixed with hemocoagulase or microwave ablation may be effective options to prevent hemorrhage after a splenic CNB procedure. Although this initial experience is promising, further validation of our technique in the clinical setting is necessary.

Declaration of patient consent

The authors certify that they have obtained all appropriate patient consent forms. In the form the patient(s) has/have given his/her/their consent for his/her/their images and other clinical information to be reported in the journal. The patients understand that their names and initials will not be published and due efforts will be made to conceal their identity, but anonymity cannot be guaranteed.

Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.

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