1
|
Mitani H, Chosa K, Kondo S, Fukumoto W, Kajiwara K, Yoshimatsu R, Matsumoto T, Yamagami T, Awai K. Perioperative proximal splenic artery embolization in cirrhotic patients with splenomegaly. MINIM INVASIV THER 2024; 33:35-42. [PMID: 37909461 DOI: 10.1080/13645706.2023.2275652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 10/04/2023] [Indexed: 11/03/2023]
Abstract
INTRODUCTION The purpose of this study was to determine the effect of proximal splenic artery embolization (SAE) in cirrhotic patients with splenomegaly who underwent surgical laparotomy. MATERIAL AND METHODS This retrospective observational study included 8 cirrhotic patients with splenomegaly. They underwent proximal SAE before- (n = 6) or after (n = 2) laparotomy. Vascular plugs or coils were placed in the proximal splenic artery. The diameter of the portal vein and the splenic volume were recorded. Clinical outcome assessments included platelet counts, the model for end-stage liver disease (MELD) score, and complications. RESULTS After embolization, the portal venous diameter was significantly smaller (pre: 13.6 ± 2.7 mm, post: 12.5 ± 2.3 mm, p = 0.023), the splenic volume was significantly decreased (pre: 463.2 ± 145.7 ml, post: 373.3 ± 108.5 ml, p = 0.008) and the platelet count was significantly higher (pre: 69.6 ± 30.8 × 103/μl, post: 86.8 ± 27.7 × 103/μl, p = 0.035). Before embolization, the median MELD score was 12; after embolization, it was 11 (p = 0.026). No patient developed post-treatment complications after embolization. CONCLUSIONS The reduction of hypersplenism by perioperative proximal SAE may be safe and reduce the surgical risk in cirrhotic patients with splenomegaly.
Collapse
Affiliation(s)
- Hidenori Mitani
- Department of Diagnostic Radiology, Hiroshima University Hospital, Hiroshima, Japan
| | - Keigo Chosa
- Department of Diagnostic Radiology, Hiroshima University Hospital, Hiroshima, Japan
| | - Shota Kondo
- Department of Diagnostic Radiology, Hiroshima University Hospital, Hiroshima, Japan
| | - Wataru Fukumoto
- Department of Diagnostic Radiology, Hiroshima University Hospital, Hiroshima, Japan
| | - Kenji Kajiwara
- Department of Diagnostic Radiology, National Hospital Organization Kure Medical Center, Hiroshima, Japan
| | - Rika Yoshimatsu
- Department of Diagnostic and Interventional Radiology, Kochi Medical School, Kochi University, Kochi, Japan
| | - Tomohiro Matsumoto
- Department of Diagnostic and Interventional Radiology, Kochi Medical School, Kochi University, Kochi, Japan
| | - Takuji Yamagami
- Department of Diagnostic and Interventional Radiology, Kochi Medical School, Kochi University, Kochi, Japan
| | - Kazuo Awai
- Department of Diagnostic Radiology, Hiroshima University Hospital, Hiroshima, Japan
| |
Collapse
|
2
|
Biben E, Menon L, Gokden N, Spond MF, Eichhorn JM, Aydin AM. Giant left pheochromocytoma with vascular anomalies and pelvic horseshoe kidney: a case report. BMC Urol 2023; 23:204. [PMID: 38066479 PMCID: PMC10704855 DOI: 10.1186/s12894-023-01370-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Accepted: 11/20/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Pheochromocytoma is a neuroendocrine tumor, and its treatment is dependent on surgical resection. Due to the wide availability of cross-sectional imaging, pheochromocytomas are commonly seen as small tumors less than 10 cm in size and are mostly treated with minimally invasive surgery. Their concomitant presence with horseshoe kidney or other anatomical and vascular anomalies is rare. Herein, we present a surgically complex giant pheochromocytoma case who underwent an open left radical adrenalectomy. CASE PRESENTATION A 41-year-old Hispanic female presented with a 12 × 8 cm left hypervascular adrenal mass, pelvic horseshoe kidney, and severely dilated large left retro-aortic renal vein which branched into a left adrenal vein, congested left ovarian vein, and left uterine plexus. She was managed with insulin and metformin for uncontrolled diabetes with an A1c level of 9% and doxazosin for persistent hypertension. Clinical diagnosis of pheochromocytoma was confirmed with elevated urine and serum metanephrine and normetanephrine. The pre-operative ACTH was within normal range with a normal dexamethasone suppression test and 24-hour urine free cortisol. The adrenalectomy of the highly aggressive adrenal mass was performed via open approach to obtain adequate surgical exposure. Due to the large size of the tumor and its significant involvement with multiple adjacent structures, coordination with multiple surgical teams and close hemodynamic monitoring by anesthesiology was required for successful patient outcomes including preservation of blood supply to the pelvic horseshoe kidney. The histopathological diagnosis was pheochromocytoma with negative surgical margins. The patient was followed at 1, 4, 12, and 24 weeks postoperatively. She had a normal postoperative eGFR and was able to discontinue antihypertensive and antidiabetic medications at four weeks. She had transient adrenal insufficiency, which resolved at five months. The horseshoe kidney was intact except for a minimal area of hypo-enhancement in the left superior renal moiety due to infarction, which was significantly improved at six months. CONCLUSION Our patient had a giant pheochromocytoma with anatomical variations complicating an already surgically challenging procedure. Nonetheless, with multiple provider collaboration, detailed pre-operative surgical planning, and meticulous perioperative monitoring, radical resection of the giant pheochromocytoma was safe and feasible with successful postoperative outcomes.
Collapse
Affiliation(s)
- Emily Biben
- Department of Urology, University of Arkansas for Medical Sciences, 4301 W Markham St, Little Rock, AR, 72205, USA
| | - Lakshmi Menon
- Department of Endocrinology, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Neriman Gokden
- Department of Pathology, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Matthew F Spond
- Department of Anesthesiology, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Joshua M Eichhorn
- Department of Radiology and Nuclear Medicine, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Ahmet Murat Aydin
- Department of Urology, University of Arkansas for Medical Sciences, 4301 W Markham St, Little Rock, AR, 72205, USA.
| |
Collapse
|
3
|
Wiik Larsen J, Thorsen K, Søreide K. Splenic injury from blunt trauma. Br J Surg 2023; 110:1035-1038. [PMID: 36916679 PMCID: PMC10416674 DOI: 10.1093/bjs/znad060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/06/2023] [Accepted: 02/08/2023] [Indexed: 03/15/2023]
Affiliation(s)
- Johannes Wiik Larsen
- Department of Gastrointestinal Surgery, Stavanger University Hospital, Stavanger, Norway
- SAFER Surgery, Stavanger University Hospital, Stavanger, Norway
- STING, Stavanger Trauma Investigation Group, Stavanger University Hospital, Stavanger, Norway
- Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Kenneth Thorsen
- Department of Gastrointestinal Surgery, Stavanger University Hospital, Stavanger, Norway
- SAFER Surgery, Stavanger University Hospital, Stavanger, Norway
- STING, Stavanger Trauma Investigation Group, Stavanger University Hospital, Stavanger, Norway
- Department of Clinical Medicine, University of Bergen, Bergen, Norway
- Section for Traumatology, Surgical Clinic, Stavanger University Hospital, Stavanger, Norway
| | - Kjetil Søreide
- Department of Gastrointestinal Surgery, Stavanger University Hospital, Stavanger, Norway
- SAFER Surgery, Stavanger University Hospital, Stavanger, Norway
- STING, Stavanger Trauma Investigation Group, Stavanger University Hospital, Stavanger, Norway
- Department of Clinical Medicine, University of Bergen, Bergen, Norway
| |
Collapse
|
4
|
Korrel M, Lof S, Al Sarireh B, Björnsson B, Boggi U, Butturini G, Casadei R, De Pastena M, Esposito A, Fabre JM, Ferrari G, Fteriche FS, Fusai G, Koerkamp BG, Hackert T, D'Hondt M, Jah A, Keck T, Marino MV, Molenaar IQ, Pessaux P, Pietrabissa A, Rosso E, Sahakyan M, Soonawalla Z, Souche FR, White S, Zerbi A, Dokmak S, Edwin B, Hilal MA, Besselink M; European consortium on Minimally Invasive Pancreatic Surgery (E-MIPS). Short-term Outcomes After Spleen-preserving Minimally Invasive Distal Pancreatectomy With or Without Preservation of Splenic Vessels: A Pan-European Retrospective Study in High-volume Centers. Ann Surg 2023; 277:e119-25. [PMID: 34091515 DOI: 10.1097/SLA.0000000000004963] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To compare short-term clinical outcomes after Kimura and Warshaw MIDP. BACKGROUND Spleen preservation during distal pancreatectomy can be achieved by either preservation (Kimura) or resection (Warshaw) of the splenic vessels. Multicenter studies reporting outcomes of Kimura and Warshaw spleen-preserving MIDP are scarce. METHODS Multicenter retrospective study including consecutive MIDP procedures intended to be spleen-preserving from 29 high-volume centers (≥15 distal pancreatectomies annually) in 8 European countries. Primary outcomes were secondary splenectomy for ischemia and major (Clavien-Dindo grade ≥III) complications. Sensitivity analysis assessed the impact of excluding ("rescue") Warshaw procedures which were performed in centers that typically (>75%) performed Kimura MIDP. RESULTS Overall, 1095 patients after MIDP were included with successful splenic preservation in 878 patients (80%), including 634 Kimura and 244 Warshaw procedures. Rates of clinically relevant splenic ischemia (0.6% vs 1.6%, P = 0.127) and major complications (11.5% vs 14.4%, P = 0.308) did not differ significantly between Kimura and Warshaw MIDP, respectively. Mortality rates were higher after Warshaw MIDP (0.0% vs 1.2%, P = 0.023), and decreased in the sensitivity analysis (0.0% vs 0.6%, P = 0.052). Kimura MIDP was associated with longer operative time (202 vs 184 minutes, P = 0.033) and less blood loss (100 vs 150 mL, P < 0.001) as compared to Warshaw MIDP. Unplanned splenectomy was associated with a higher conversion rate (20.7% vs 5.0%, P < 0.001). CONCLUSIONS Kimura and Warshaw spleen-preserving MIDP provide equivalent short-term outcomes with low rates of secondary splenectomy and postoperative morbidity. Further analyses of long-term outcomes are needed.
Collapse
|
5
|
Bishop AA, Krohn E, Vakayil VR, Pribyl K, Reding MT, Tignanelli C, Harmon JV. A laparoscopic approach to address massive splenomegaly, symptomatic cholelithiasis, and a planned postoperative pregnancy: A case report. Clin Case Rep 2023; 11:e6831. [PMID: 36703775 PMCID: PMC9869644 DOI: 10.1002/ccr3.6831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 11/04/2022] [Accepted: 12/13/2022] [Indexed: 01/25/2023] Open
Abstract
We report long-term follow-up of a patient who underwent a tailored laparoscopic procedure for symptomatic cholelithiasis, massive splenomegaly, and a planned pregnancy. There were no complications, and the patient remained symptom-free at the 5-year follow-up. We supplemented our case report with national surgical data demonstrating the safety of laparoscopic splenectomy.
Collapse
Affiliation(s)
| | - Eric Krohn
- Department of SurgeryUniversity of MinnesotaMinneapolisMinnesotaUSA
| | | | - Kyle Pribyl
- Department of SurgeryUniversity of MinnesotaMinneapolisMinnesotaUSA
| | - Mark T. Reding
- Department of MedicineUniversity of MinnesotaMinneapolisMinnesotaUSA
| | | | - James V. Harmon
- Department of SurgeryUniversity of MinnesotaMinneapolisMinnesotaUSA
| |
Collapse
|
6
|
Freeman JJ, Yorkgitis BK, Haines K, Koganti D, Patel N, Maine R, Chiu W, Tran TL, Como JJ, Kasotakis G. Vaccination after spleen embolization: A practice management guideline from the Eastern Association for the Surgery of Trauma. Injury 2022; 53:3569-3574. [PMID: 36038390 DOI: 10.1016/j.injury.2022.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 08/02/2022] [Accepted: 08/03/2022] [Indexed: 02/02/2023]
Abstract
BACKGROUND Angioembolization is an important adjunct in the non-operative management of adult trauma patients with splenic injury. Multiple studies have shown that angioembolization may increase the non-operative splenic salvage rate for patients with high-grade splenic injuries. We performed a systematic review and developed evidence-based recommendations regarding the need for post-splenectomy vaccinations after splenic embolization in trauma patients. METHODS A systematic review and meta-analysis of currently available evidence were performed utilizing the Grading of Recommendations Assessment, Development and Evaluation (GRADE) methodology. RESULTS Nine studies were identified and analyzed. A total of 240 embolization patients were compared to 443 control patients who neither underwent splenectomy nor were embolized. There was no statistical difference between the splenic immune function of embolized and control patients. In addition, a total of 3974 splenectomy patients was compared with 686 embolization patients. Embolization patients had fewer infectious complications and a greater degree of preserved splenic immune function. CONCLUSION In adult trauma patients who have undergone splenic angioembolization, we conditionally recommend against routine post-splenectomy vaccinations. STUDY TYPE systematic review/meta-analysis Level of evidence: level III.
Collapse
Affiliation(s)
| | - Brian K Yorkgitis
- Department of Surgery, University of Florida College of Medicine Jacksonville, Jacksonville, FL.
| | - Krista Haines
- Division of Trauma and Critical Care, Department of Surgery, Duke University, Durham, NC.
| | | | - Nimitt Patel
- Division of Trauma, Acute Care Surgery & Surgical Critical Care, Department of Surgery, MetroHealth Medical Center, Cleveland, OH.
| | - Rebecca Maine
- Trauma and Acute Care Surgery, University of North Carolina, Chapel Hill, NC
| | - William Chiu
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD.
| | | | - John J Como
- Division of Trauma, Acute Care Surgery & Surgical Critical Care, Department of Surgery, MetroHealth Medical Center, Cleveland, OH.
| | - George Kasotakis
- Division of Trauma and Critical Care, Department of Surgery, Duke University, Durham, NC.
| |
Collapse
|
7
|
Esposito A, Ramera M, Casetti L, De Pastena M, Fontana M, Frigerio I, Giardino A, Girelli R, Landoni L, Malleo G, Marchegiani G, Paiella S, Pea A, Regi P, Scopelliti F, Tuveri M, Bassi C, Salvia R, Butturini G. 401 consecutive minimally invasive distal pancreatectomies: lessons learned from 20 years of experience. Surg Endosc 2022; 36:7025-7037. [PMID: 35102430 PMCID: PMC9402493 DOI: 10.1007/s00464-021-08997-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 12/31/2021] [Indexed: 11/24/2022]
Abstract
BACKGROUND This study aimed to discuss and report the trend, outcomes, and learning curve effect after minimally invasive distal pancreatectomy (MIDP) at two high-volume centres. METHODS Patients undergoing MIDP between January 1999 and December 2018 were retrospectively identified from prospectively maintained electronic databases. The entire cohort was divided into two groups constituting the "early" and "recent" phases. The learning curve effect was analyzed for laparoscopic (LDP) and robotic distal pancreatectomy (RDP). The follow-up was at least 2 years. RESULTS The study population included 401 consecutive patients (LDP n = 300, RDP n = 101). Twelve surgeons performed MIDP during the study period. Although patients were more carefully selected in the early phase, in terms of median age (49 vs. 55 years, p = 0.026), ASA class higher than 2 (3% vs. 9%, p = 0.018), previous abdominal surgery (10% vs. 34%, p < 0.001), and pancreatic adenocarcinoma (PDAC) (7% vs. 15%, p = 0.017), the recent phase had similar perioperative outcomes. The increase of experience in LDP was inversely associated with the operative time (240 vs 210 min, p < 0.001), morbidity rate (56.5% vs. 40.1%, p = 0.005), intra-abdominal collection (28.3% vs. 17.3%, p = 0.023), and length of stay (8 vs. 7 days, p = 0.009). Median survival in the PDAC subgroup was 53 months. CONCLUSION In the setting of high-volume centres, the surgical training of MIDP is associated with acceptable rates of morbidity. The learning curve can be largely achieved by several team members, improving outcomes over time. Whenever possible resection of PDAC guarantees adequate oncological results and survival.
Collapse
Affiliation(s)
- Alessandro Esposito
- Department of General and Pancreatic Surgery, The Pancreas Institute, University of Verona Hospital Trust, Piazzale L.A. Scuro, 10, 37134, Verona, Italy
| | - Marco Ramera
- Department of General and Pancreatic Surgery, The Pancreas Institute, University of Verona Hospital Trust, Piazzale L.A. Scuro, 10, 37134, Verona, Italy
| | - Luca Casetti
- Department of General and Pancreatic Surgery, The Pancreas Institute, University of Verona Hospital Trust, Piazzale L.A. Scuro, 10, 37134, Verona, Italy
| | - Matteo De Pastena
- Department of General and Pancreatic Surgery, The Pancreas Institute, University of Verona Hospital Trust, Piazzale L.A. Scuro, 10, 37134, Verona, Italy
| | - Martina Fontana
- Department of General and Pancreatic Surgery, The Pancreas Institute, University of Verona Hospital Trust, Piazzale L.A. Scuro, 10, 37134, Verona, Italy
| | | | | | | | - Luca Landoni
- Department of General and Pancreatic Surgery, The Pancreas Institute, University of Verona Hospital Trust, Piazzale L.A. Scuro, 10, 37134, Verona, Italy
| | - Giuseppe Malleo
- Department of General and Pancreatic Surgery, The Pancreas Institute, University of Verona Hospital Trust, Piazzale L.A. Scuro, 10, 37134, Verona, Italy
| | - Giovanni Marchegiani
- Department of General and Pancreatic Surgery, The Pancreas Institute, University of Verona Hospital Trust, Piazzale L.A. Scuro, 10, 37134, Verona, Italy
| | - Salvatore Paiella
- Department of General and Pancreatic Surgery, The Pancreas Institute, University of Verona Hospital Trust, Piazzale L.A. Scuro, 10, 37134, Verona, Italy
| | - Antonio Pea
- Department of General and Pancreatic Surgery, The Pancreas Institute, University of Verona Hospital Trust, Piazzale L.A. Scuro, 10, 37134, Verona, Italy
| | - Paolo Regi
- Department of Surgery, Pederzoli Hospital, Peschiera, Italy
| | | | - Massimiliano Tuveri
- Department of General and Pancreatic Surgery, The Pancreas Institute, University of Verona Hospital Trust, Piazzale L.A. Scuro, 10, 37134, Verona, Italy
| | - Claudio Bassi
- Department of General and Pancreatic Surgery, The Pancreas Institute, University of Verona Hospital Trust, Piazzale L.A. Scuro, 10, 37134, Verona, Italy.
- Università di Verona, Verona, Italy.
| | - Roberto Salvia
- Department of General and Pancreatic Surgery, The Pancreas Institute, University of Verona Hospital Trust, Piazzale L.A. Scuro, 10, 37134, Verona, Italy
| | | |
Collapse
|
8
|
Dembinski J, Cannella R, Sauvanet A, Dokmak S. Laparoscopic spleen-preserving distal pancreatectomy with splenic vessel (vessels?) resection (laparoscopic Warshaw procedure). J Visc Surg 2022; 159:415-423. [PMID: 35491391 DOI: 10.1016/j.jviscsurg.2022.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- J Dembinski
- Department of HPB surgery and liver transplantation, DMU DIGEST, hôpital Beaujon, AP-HP, Clichy, France
| | - R Cannella
- Department of radiology, hôpital Beaujon, AP-HP, Clichy, France
| | - A Sauvanet
- Department of HPB surgery and liver transplantation, DMU DIGEST, hôpital Beaujon, AP-HP, Clichy, France
| | - S Dokmak
- Department of HPB surgery and liver transplantation, DMU DIGEST, hôpital Beaujon, AP-HP, Clichy, France.
| |
Collapse
|
9
|
Lenzing E, Rezahosseini O, Burgdorf SK, Nielsen SD, Harboe ZB. Efficacy, immunogenicity, and evidence for best-timing of pneumococcal vaccination in splenectomized adults: a systematic review. Expert Rev Vaccines 2022; 21:723-733. [PMID: 35236233 DOI: 10.1080/14760584.2022.2049250] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION : Streptococcus pneumoniae is the most frequent cause of overwhelming post-splenectomy infections. Pneumococcal vaccination is generally recommended for splenectomized individuals. However, most of our knowledge comes from a few observational studies or small randomized clinical trials. We conducted this systematic review to assess the evidence of efficacy, antibody response, and the best timing for pneumococcal vaccination in splenectomized individuals. AREAS COVERED : The systematic review was conducted according to the PRISMA guidelines. We screened 489 articles, included 21 articles, and assessed the risk of bias using Cochrane RoB 2 and ROBINS-I. We summarized the findings narratively due to the heterogeneity of the studies. EXPERT OPINION Splenectomized individuals seem to have adequate antibody responses to pneumococcal vaccines. No differences in antibody responses were observed compared to healthy controls, except in one study. The studies were heterogeneous, and the majority had moderate to high degree of bias. There is a lack of clinical evidence for efficacy and best timing of pneumococcal vaccination in splenectomized individuals. Randomized clinical trials addressing these issues are needed.
Collapse
Affiliation(s)
- Emil Lenzing
- Viro-immunology Research Unit, Department of Infectious Diseases, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Omid Rezahosseini
- Viro-immunology Research Unit, Department of Infectious Diseases, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Stefan Kobbelgaard Burgdorf
- Department of Surgical Gastroenterology, Centre for Cancer and Organ Diseases, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Susanne Dam Nielsen
- Viro-immunology Research Unit, Department of Infectious Diseases, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.,Institute for Clinical Medicine, University of Copenhagen, Denmark
| | - Zitta Barrella Harboe
- Viro-immunology Research Unit, Department of Infectious Diseases, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.,Department of Pulmonary Medicine and Infectious Diseases, Copenhagen University Hospital, North Zealand, Denmark.,Institute for Clinical Medicine, University of Copenhagen, Denmark
| |
Collapse
|
10
|
Yu Z, Chen D, Tan C, Zeng G, He C, Wang J, Bu X, Wang Y. Physiological clearance of Aβ by spleen and splenectomy aggravates Alzheimer-type pathogenesis. Aging Cell 2022; 21:e13533. [PMID: 34939734 PMCID: PMC8761003 DOI: 10.1111/acel.13533] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 10/26/2021] [Accepted: 11/30/2021] [Indexed: 12/16/2022] Open
Abstract
Background A previous study demonstrated that nearly 40%–60% of brain Aβ flows out into the peripheral system for clearance. However, where and how circulating Aβ is cleared in the periphery remains unclear. The spleen acts as a blood filter and an immune organ. The aim of the present study was to investigate the role of the spleen in the clearance of Aβ in the periphery. Methods We investigated the physiological clearance of Aβ by the spleen and established a mouse model of AD and spleen excision by removing the spleens of APP/PS1 mice to investigate the effect of splenectomy on AD mice. Results We found that Aβ levels in the splenic artery were higher than those in the splenic vein, suggesting that circulating Aβ is cleared when blood flows through the spleen. Next, we found that splenic monocytes/macrophages could take up Aβ directly in vivo and in vitro. Splenectomy aggravated behaviour deficits, brain Aβ burden and AD‐related pathologies in AD mice. Conclusion Our study reveals for the first time that the spleen exerts a physiological function of clearing circulating Aβ in the periphery. Our study also suggests that splenectomy, which is a routine treatment for splenic rupture and hypersplenism, might accelerate the development of AD.
Collapse
Affiliation(s)
- Zhong‐Yuan Yu
- Department of Neurology and Centre for Clinical Neuroscience Daping Hospital Third Military Medical University Chongqing China
- Institute of Brain and Intelligence Third Military Medical University Chongqing China
- Chongqing Key Laboratory of Ageing and Brain Diseases Chongqing China
| | - Dong‐Wan Chen
- Department of Neurology and Centre for Clinical Neuroscience Daping Hospital Third Military Medical University Chongqing China
- Institute of Brain and Intelligence Third Military Medical University Chongqing China
- Chongqing Key Laboratory of Ageing and Brain Diseases Chongqing China
| | - Cheng‐Rong Tan
- Department of Neurology and Centre for Clinical Neuroscience Daping Hospital Third Military Medical University Chongqing China
- Institute of Brain and Intelligence Third Military Medical University Chongqing China
- Chongqing Key Laboratory of Ageing and Brain Diseases Chongqing China
| | - Gui‐Hua Zeng
- Department of Neurology and Centre for Clinical Neuroscience Daping Hospital Third Military Medical University Chongqing China
- Institute of Brain and Intelligence Third Military Medical University Chongqing China
- Chongqing Key Laboratory of Ageing and Brain Diseases Chongqing China
| | - Chen‐Yang He
- Department of Neurology and Centre for Clinical Neuroscience Daping Hospital Third Military Medical University Chongqing China
- Institute of Brain and Intelligence Third Military Medical University Chongqing China
- Chongqing Key Laboratory of Ageing and Brain Diseases Chongqing China
| | - Jun Wang
- Department of Neurology and Centre for Clinical Neuroscience Daping Hospital Third Military Medical University Chongqing China
- Institute of Brain and Intelligence Third Military Medical University Chongqing China
- Chongqing Key Laboratory of Ageing and Brain Diseases Chongqing China
| | - Xian‐Le Bu
- Department of Neurology and Centre for Clinical Neuroscience Daping Hospital Third Military Medical University Chongqing China
- Institute of Brain and Intelligence Third Military Medical University Chongqing China
- Chongqing Key Laboratory of Ageing and Brain Diseases Chongqing China
| | - Yan‐Jiang Wang
- Department of Neurology and Centre for Clinical Neuroscience Daping Hospital Third Military Medical University Chongqing China
- Institute of Brain and Intelligence Third Military Medical University Chongqing China
- Chongqing Key Laboratory of Ageing and Brain Diseases Chongqing China
| |
Collapse
|
11
|
Attina’ G, Triarico S, Romano A, Maurizi P, Mastrangelo S, Ruggiero A. Role of Partial Splenectomy in Hematologic Childhood Disorders. Pathogens 2021; 10:1436. [PMID: 34832592 PMCID: PMC8620563 DOI: 10.3390/pathogens10111436] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 10/26/2021] [Accepted: 11/03/2021] [Indexed: 11/19/2022] Open
Abstract
The spleen is a secondary lymphoid organ that belongs to the reticular-endothelial system, directly connected to blood circulation. The spleen is greatly involved in the immune response, especially against capsulated bacteria. Splenectomy plays a fundamental role in the treatment of numerous pediatric hematologic disorders. Taking into account all the possible complications (especially infections) linked to this procedure, alternatives to total splenectomy have been sought. Partial splenectomy has been proposed as a treatment that allows the reduction of infectious risk. This approach has proven safe and feasible in most patients, but multicentric and prospective studies are necessary to more accurately define the indications for performing partial splenectomy. However, vaccinations and antibiotic prophylaxis remain fundamental for preventing serious infections, even in the case of partial splenectomy. We review anatomical and functional properties of the spleen, with a focus on medical or surgical indications to splenectomy, aiming to give practical educational information to patients and their families after splenectomy. Furthermore, we discuss the feasibility of partial splenectomy in children with hematologic diseases who require splenectomy.
Collapse
Affiliation(s)
| | | | | | | | | | - Antonio Ruggiero
- Pediatric Oncology Unit, Department of Woman and Child Health and Public Health, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, 00168 Rome, Italy; (G.A.); (S.T.); (A.R.); (P.M.); (S.M.)
| |
Collapse
|
12
|
Sureshkumar S, Nachiappan DS, Anandhi A, Varuna S, Mohsina S, Mahalakshmy T, Rajesh NG, Kate V. Postsplenectomy Prophylaxis—Changes and Challenges in the Adherence to Standard Vaccination Guidelines Over Ten Years. Indian J Surg 2021. [DOI: 10.1007/s12262-021-02948-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
|