eISSN: 2299-0054
ISSN: 1895-4588
Videosurgery and Other Miniinvasive Techniques
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1/2022
vol. 17
 
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abstract:
Original paper

Risk factors for abdominal wall pseudohernia after percutaneous cryoablation of renal cell carcinoma

Takahiro Higuchi
1
,
Kanichiro Shimizu
1
,
Keitaro Enoki
1
,
Kenji Motohashi
1
,
Yoshihiko Kameoka
1
,
Naoki Kurata
1
,
Jun Miki
2
,
Haruki Sekiguchi
3
,
Shunichi Sadaoka
1

  1. Department of Radiology, The Jikei University, School of Medicine, Chiba, Kashiwa Hospital, Japan
  2. Department of Urology, The Jikei University, School of Medicine, Chiba, Kashiwa Hospital, Japan
  3. Department of Cardiology, Tokyo Women’s Medical University, Tokyo, Japan
Videosurgery Miniinv 2022; 17 (1): 188–193
DOI: https://doi.org/10.5114/wiitm.2021.107752
Online publish date: 2021/07/13
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Introduction
Percutaneous cryoablation (PCA) is increasingly recognized as a feasible minimally invasive, nephron-sparing treatment for renal cell carcinomas, with comparable efficacy to nephrectomy. The development of abdominal wall pseudohernia (AWP) is a rare complication of PCA for renal masses, which can negatively impact patients’ quality of life.

Aim
To retrospectively evaluate the risk factors and prognosis for AWP after PCA and, based on these results, to discuss strategies to lower the risk of AWP associated with image-guided PCA for renal masses.

Material and methods
We retrospectively studied 117 PCAs performed for renal masses in 92 patients, between 2016 and 2019, at our hospital. We compared the following clinical characteristics (age, sex, body mass index, tumour diameter, RENAL nephrometry score, procedural details, transcatheter arterial embolization, dissection techniques, number of cryoneedles used, location of needles, and location of ice ball) between those who developed AWP and those who did not.

Results
Of the 117 PCAs (92 patients) included in our study group, AWP complications were observed in 6 (5.1%) procedures. Puncture through the erector spinae muscle (p < 0.01) and non-use of hydro- or pneumo-dissection (p = 0.01) were identified as risk factors for AWP.

Conclusions
Although PCA is relatively safe to perform and the occurrence of an associated AWP is a rare and infrequent complication, the risk for AWP could be further decreased by avoiding punctures through the erector spinae muscle and using hydro- or pneumo-dissection.

keywords:

abdominal wall pseudohernia, percutaneous cryoablation, renal cell carcinoma
  
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