There is ongoing challenges regarding the safety of performing laparoscopic surgery with the presence of ventriculoperito- neal (VP) shunts, especially in patients treated for cancer disease. To date, only one case has been reported in the English lit- erature. Herein, we report an additional two cases of patients with previous insertion of a VP shunt, diagnosed with colon cancer. Both our patients underwent successful laparoscopic colectomies, without clamping or removal of the VP shunt, with no reported perioperative complications or postoperative neurological deﬁcits. Laparoscopic bowel resection for cancer, in patients with a pre-existing VP shunt, could be considered a potentially safe and feasible procedure. Furthermore, due to the increasing number of patients with VP shunts, additional case reports and investigations are warranted to further con- ﬁrm safety of this procedure. INTRODUCTION VP shunts, especially in patients treated for cancer disease. To our knowledge only one previous case was reported . Ventriculoperitoneal (VP) shunts are silicone catheters placed We herein present two cases of adult colon cancer patients from the lateral brain ventricle through a subcutaneous tunnel with VP shunts that underwent laparoscopic surgery. into the peritoneal cavity, in order to drain excess cerebrospinal ﬂuids. Since laparoscopic surgery has become the standard approach in many abdominal operations, several cases have high lightened the potential hazards of this technique, in patients CASE PRESENTATION with VP shunts. The primary concerns in laparoscopic surgery in Case 1 patients with VP shunt are a clinically signiﬁcant increase in intra- A 71-year-old man was referred to our colon and rectum clinic, cranial pressure (ICP) and retrograde shunt failure. Nonetheless, an increase in ICP has never shown to be clinically signiﬁcant, following diagnosis with right hepatic ﬂexure colon cancer, which was detected by colonoscopy, due to abdominal pain moreover, ICP monitoring likely outweighs the risk of adverse events . Other concerns include the development of severe thor- and recent change in bowel habits. Medical history included diagnosis with hydrocephalus 18 years earlier. He received a VP acic subcutaneous emphysema with compromised ventilation leading to increase in ICP. There is ongoing controversy regarding shunt that was routed subcutaneously, through the right thor- acic region into the abdominal cavity, at the epigastric region. the safety of performing laparoscopic surgery with the presence of Received: May 22, 2017. Accepted: December 26, 2017 Published by Oxford University Press and JSCR Publishing Ltd. All rights reserved. © The Author(s) 2018. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/ licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact firstname.lastname@example.org Downloaded from https://academic.oup.com/jscr/article-abstract/2018/1/rjx264/4822189 by Ed 'DeepDyve' Gillespie user on 16 March 2018 2 S. Fuad et al. The current procedure, laparoscopic right hemicolectomy important issues should be taken under careful consideration, was performed using standard 4 port technique. No clamping such as the inﬂuence of a pneumoperitoneum on iatrogenic of the catheter was done. The postoperative course was spread of cancer cells, port-site metastasis, which seem to be uneventful with no neurological deﬁcit. The patient was dis- characteristic to laparoscopic surgery. Furthermore, pneumo- charged 6 days postoperatively. peritoneum by CO insufﬂation might encourage VP shunt- related subcutaneous seeding of cancer cells. Otani et al. reported a rare case of pancreatic cancer diagnosed by the Case 2 detection of skin metastases along the VP shunt catheter, as an A 78-year-old woman was referred to our colon and rectum unfortunate consequence of its presence . Magtibay et al.  clinic following diagnosis of left colon cancer, which was also reported a very rare case, in which the VP shunt served as detected by colonoscopy, due to rectal bleeding. Medical history a conduit for the spread of malignant medulloblastoma cells to included four previous abdominal operations: appendectomy, the peritoneum. Nonetheless, the reported incidence of port- open cholecystectomy and two caesarian sections, and an site metastasis following laparoscopic colon cancer surgery is insertion of VP shunt through left thoracic region into the low. Moreover, when port-site metastasis develops, it tends to abdominal cavity. occur in patients with advanced disease, such as large and The current procedure, her ﬁfth abdominal surgery, laparo- locally advanced tumors or Dukes’ C cancers . Therefore, scopic left hemicolectomy was performed using standard 4 port laparoscopic surgery for clinical stage T4 tumors with serosal technique. Unusual dense adhesions were found. No clamping involvement, as Dukes’ C cancers should be used with caution, of the catheter was done. The postoperative course demon- especially in patients with a VP shunt, as it might encourage VP strated a slow recovery with mild wound infection treated with shunt-related skin metastases. drainage and orally antibiotics only. No neurological deﬁcit was detected. The patient was discharged 11 days postoperatively. CONCLUSIONS Laparoscopic bowel resection for cancer, in patients with a pre- DISCUSSION existing VP shunt, could be considered a potentially safe and To our knowledge, there is only one previously published case feasible procedure. Furthermore, due to the increasing number report in the English literature of a cecal cancer patient with of patients with VP shunts, additional reports and investiga- previous history of a VP shunt that was treated by laparoscopic tions are warranted to further conﬁrm safety of this procedure. right colon resection . Herein we report an additional two cases of patients with previous insertion of a VP shunt, diagnosed with colon cancer. CONFLICT OF INTEREST STATEMENT Both our patients underwent successful laparoscopic hemico- None declared. lectomies, without clamping or removal of the VP shunt, with no reported perioperative complications or postoperative neurological deﬁcits. Our decision to leave the VP shunt in REFERENCES place was in contrast to the aforementioned case report, which involved manipulating and clamping of the shunt prior to 1. Jackman SV, Weingart JD, Kinsman SL, Docimo SG. insufﬂation of carbon dioxide, to prevent adverse effects from the Laparoscopic surgery in patients with ventriculoperitoneal pneumoperitoneum. shunts: safety and monitoring. J Urol 2000;164:1352–4. Barina et al. was the ﬁrst to report on the clinical course, in 2. Torigoe T, Koui S, Uehara T, Arase K, Nakayama Y, adults with VP shunts in place, during open appendectomy for Yamaguchi K. Laparoscopic cecal cancer resection in a appendicitis. Similar to our report, they also demonstrated, in patient with a ventriculoperitoneal shunt: a case report. Int general, no shunt-related complications, such as malfunction J Surg Case Rep 2013;4:330–3. or infection . Wadhwa et al.  were the ﬁrst to report a retro- 3. 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Journal of Surgical Case Reports – Oxford University Press
Published: Jan 1, 2018
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