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Xie L, Chen Z, Guo H, Tao Y, Miao X, Wu R, Li Y. Congenital Asplenia Interrupts Immune Homeostasis and Leads to Excessive Systemic Inflammation in Zebrafish. Front Cell Infect Microbiol 2021; 11:668859. [PMID: 34262881 PMCID: PMC8274418 DOI: 10.3389/fcimb.2021.668859] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 05/10/2021] [Indexed: 11/26/2022] Open
Abstract
Splenectomy or congenital asplenia in humans increases susceptibility to infections. We have previously reported that congenital asplenia in zebrafish reduces resistance to Aeromonas hydrophila infection. However, the molecular mechanism of systemic immune response in congenitally asplenic individuals is largely unexplored. In this study, we found that pro-inflammatory cytokines were more highly induced in congenitally asplenic zebrafish than wild-type after pathogenic A. hydrophila infection and lipopolysaccharide exposure. In addition, a higher aggregation of apoptotic cells was observed in congenitally asplenic zebrafish than that in wild-type. Next, we examined the transcriptome profiles of whole kidneys from wild-type and congenitally asplenic zebrafish to investigate the effects of congenital asplenia on innate and adaptive immune responses induced by the inactivated A. hydrophila. Congenital asplenia inactivated the splenic anti-inflammatory reflex, disrupted immune homeostasis, and induced excessive inflammation as evidenced by the highly induced stress response–related biological processes, inflammatory and apoptosis-associated pathways, and pro-inflammatory cytokines/chemokines in congenitally asplenic zebrafish compared with wild-type after vaccination. In addition, complement component genes (c3a.1, c3a.6, c4, c6, and c9) and several important immune-related genes (tabp.1, tap1, hamp, prg4b, nfil3, defbl1, psmb9a, tfr1a, and sae1) were downregulated in congenitally asplenic zebrafish. Furthermore, congenital asplenia impaired adaptive immunity as demonstrated by downregulation of biological processes and signaling pathways involved in adaptive immune response after vaccination in congenitally asplenic zebrafish. The expression of MHCII/IgM was also significantly reduced in the congenitally asplenic zebrafish when compared with wild-type. Together, our study provides an in-depth understanding of spleen function in controlling immune homeostasis and may offer insight into the pathological response in splenectomized or congenitally asplenic patients after infections.
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Affiliation(s)
- Lang Xie
- Institute of Three Gorges Ecological Fisheries of Chongqing, College of Fisheries, Southwest University, Chongqing, China
| | - Zheyu Chen
- Institute of Three Gorges Ecological Fisheries of Chongqing, College of Fisheries, Southwest University, Chongqing, China
| | - Hui Guo
- Institute of Three Gorges Ecological Fisheries of Chongqing, College of Fisheries, Southwest University, Chongqing, China
| | - Yixi Tao
- Institute of Three Gorges Ecological Fisheries of Chongqing, College of Fisheries, Southwest University, Chongqing, China
| | - Xiaomin Miao
- Institute of Three Gorges Ecological Fisheries of Chongqing, College of Fisheries, Southwest University, Chongqing, China
| | - Ronghua Wu
- Institute of Three Gorges Ecological Fisheries of Chongqing, College of Fisheries, Southwest University, Chongqing, China.,Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), The Key Laboratory of Aquatic Science of Chongqing, Southwest University, Chongqing, China
| | - Yun Li
- Institute of Three Gorges Ecological Fisheries of Chongqing, College of Fisheries, Southwest University, Chongqing, China.,Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), The Key Laboratory of Aquatic Science of Chongqing, Southwest University, Chongqing, China
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Romboli A, Annicchiarico A, Morini A, Castro Ruiz C, Pagliai L, Montali F, Costi R. Laparoscopic Partial Splenectomy: A Critical Appraisal of an Emerging Technique. A Review of the First 457 Published Cases. J Laparoendosc Adv Surg Tech A 2021; 31:1130-1142. [PMID: 33471586 DOI: 10.1089/lap.2020.0769] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Background: Laparoscopic partial splenectomy (LPS) may allow avoiding total splenectomy (TS) complications and maximizing the advantages of mini-invasive approach. The objective of this review is to assess feasibility and safety of LPS, to compare this approach with alternative options. Materials and Methods: A literature review of articles reporting LPS is performed. Several parameters, including age, indication, surgical technique, devices used for splenic section/hemostasis, adverse outcomes, including morbidity/mortality, conversions to open surgery, conversions to TS, operative time (OT), and hospital stay (HS), are analyzed. Articles comparing LPS' results with those of open partial splenectomy and laparoscopic TS are also analyzed. Results: Fifty-nine articles reporting 457 LPS were included. Patients' characteristics varied widely, concerning age and indications, including hematological disease (hereditary spherocytosis, drepanocytosis), splenic focal masses, and trauma. Several technical options are reported. Mean OT and HS are 128 ± 43.7 minutes and 4.9 ± 3.8 days, respectively. No mortality and 5.7% morbidity are reported. Conversion rates to open surgery and to TS are 3.9% and 3.7%, respectively. Conclusions: In conclusion LPS is feasible and safe, with no mortality, low morbidity, and low conversion rates to laparotomy and to TS. LPS may be accomplished by various techniques and tools. Major complications are sporadically reported, thus potential risks should not be underestimated.
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Affiliation(s)
- Andrea Romboli
- Unità di Scienze Chirurgiche, Dipartimento di Medicina e Chirurgia, Università di Parma, Parma, Italia
| | - Alfredo Annicchiarico
- Unità di Scienze Chirurgiche, Dipartimento di Medicina e Chirurgia, Università di Parma, Parma, Italia.,Unità Operativa di Chirurgia Generale, Dipartimento Chirurgico, Ospedale di Vaio, Azienda Sanitaria Locale di Parma, Fidenza, Italia
| | - Andrea Morini
- Unità di Scienze Chirurgiche, Dipartimento di Medicina e Chirurgia, Università di Parma, Parma, Italia.,Unità Operativa di Chirurgia Generale, Dipartimento Chirurgico, Ospedale di Vaio, Azienda Sanitaria Locale di Parma, Fidenza, Italia
| | - Carolina Castro Ruiz
- Unità Operativa di Chirurgia Generale, Ospedale Civile di Guastalla, Guastalla, Italia
| | - Lorenzo Pagliai
- Unità di Scienze Chirurgiche, Dipartimento di Medicina e Chirurgia, Università di Parma, Parma, Italia
| | - Filippo Montali
- Unità Operativa di Chirurgia Generale, Dipartimento Chirurgico, Ospedale di Vaio, Azienda Sanitaria Locale di Parma, Fidenza, Italia
| | - Renato Costi
- Unità di Scienze Chirurgiche, Dipartimento di Medicina e Chirurgia, Università di Parma, Parma, Italia.,Unità Operativa di Chirurgia Generale, Dipartimento Chirurgico, Ospedale di Vaio, Azienda Sanitaria Locale di Parma, Fidenza, Italia
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Costi R, Castro Ruiz C, Romboli A, Wind P, Violi V, Zarzavadjian Le Bian A. Partial splenectomy: Who, when and how. A systematic review of the 2130 published cases. J Pediatr Surg 2019; 54:1527-1538. [PMID: 30665627 DOI: 10.1016/j.jpedsurg.2018.11.010] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 11/05/2018] [Accepted: 11/25/2018] [Indexed: 12/13/2022]
Abstract
BACKGROUND/PURPOSE In order to avoid consequences of total splenectomy (including severe postsplenectomy sepsis), partial splenectomy (PS) is increasingly reported. Without guidelines and indications concerning a rarely-indicated procedure, a review of literature should be an asset. METHODS A systematic review of all PSs from 1960 to December 2017 was performed, with special focus on surgical indications, sites of resection, approaches and techniques of vascular dissection and parenchymal section/hemostasis of the spleen, perioperative morbidity/mortality, including complications compelling to perform total splenectomy. RESULTS Among 2130 PSs, indications for resection were hematological disease in 1013 cases and nonhematological conditions in 1078, including various tumors in 142 and trauma in 184. Parenchymal transection was performed using several techniques through the years, most frequently after having induced partial ischemia by splenic hilum vascular dissection/ligation. 371 laparoscopic/robotic PSs were reported. Rescue total splenectomy was required in 75 patients. CONCLUSIONS Although good results are probably overestimated by such a retrospective review, PS should be considered as a procedure associated with a low morbidity/mortality. Nevertheless, severe complications are also reported, and the need of total splenectomy should not to be minimized. Laparoscopic/robotic procedures are increasingly performed, with good results and rare conversions. TYPE OF STUDY Systematic review. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Renato Costi
- Unità di Scienze Chirurgiche, Dipartimento di Medicina e Chirurgia, Università di Parma, Parma, Italia; Unità Operativa di Chirurgia Generale, Dipartimento Chirurgico, Ospedale di Vaio, Fidenza, Italia.
| | | | - Andrea Romboli
- Unità di Scienze Chirurgiche, Dipartimento di Medicina e Chirurgia, Università di Parma, Parma, Italia
| | - Philippe Wind
- Service de Chirurgie Générale Digestive, Cancerologique, Bariatrique et Métabolique, Hôpital Avicenne, Bobigny, France
| | - Vincenzo Violi
- Unità di Scienze Chirurgiche, Dipartimento di Medicina e Chirurgia, Università di Parma, Parma, Italia; Unità Operativa di Chirurgia Generale, Dipartimento Chirurgico, Ospedale di Vaio, Fidenza, Italia
| | - Alban Zarzavadjian Le Bian
- Service de Chirurgie Générale Digestive, Cancerologique, Bariatrique et Métabolique, Hôpital Avicenne, Bobigny, France; Laboratoire d'Ethique Médicale et de Médecine Légale, Université Paris "Descartes", Paris, France
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Davidsen C, Larsen TH, Gerdts E, Lønnebakken MT. Giant right ventricular outflow tract thrombus in hereditary spherocytosis: a case report. Thromb J 2016; 14:9. [PMID: 27118929 PMCID: PMC4845368 DOI: 10.1186/s12959-016-0083-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 04/13/2016] [Indexed: 01/05/2023] Open
Abstract
Background In hereditary spherocytosis with severe anemia, splenectomy is a recommended treatment. However, the spleen carries an important role both in immune function and coagulation. The increased risk of bacterial infections associated with splenectomy is well known. Recently, hypercoagulation disorders have also been linked to splenectomy through loss of regulation of platelet activity, loss of filtering function and post-splenectomy thrombocytosis. Case presentation A 28 year-old smoking women who had previously undergone splenectomy due to hereditary spherocytosis with a moderate thrombocytosis (platelet count 553–635*109/L), presented with recurrent episodes of pulmonary embolisms. Further examination by multimodality cardiac imaging demonstrated a giant chronic thrombus in the right ventricular outflow tract, which eventually had to be surgically removed. Conclusions The present case highlights the increased risk of severe thromboembolic complications following therapeutic splenectomy in hereditary spherocytosis, and emphasis the important role of multimodality cardiac imaging in recurrent pulmonary embolism, diagnosing a giant chronic thrombus in the right ventricular outflow tract. Electronic supplementary material The online version of this article (doi:10.1186/s12959-016-0083-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Cedric Davidsen
- Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
| | | | - Eva Gerdts
- Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Mai Tone Lønnebakken
- Department of Heart Disease, Haukeland University Hospital, Bergen, Norway ; Department of Clinical Science, University of Bergen, Bergen, Norway
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Rogulski R, Adamowicz-Salach A, Matysiak M, Piotrowski D, Gogolewski M, Piotrowska A, Roik D, Kamiński A. Laparoscopic splenectomy for hereditary spherocytosis-preliminary report. Eur J Haematol 2015; 96:637-42. [PMID: 26268883 DOI: 10.1111/ejh.12649] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/07/2015] [Indexed: 01/02/2023]
Abstract
Splenectomy is considered standard surgical therapy in hereditary spherocytosis. The procedure is indicated in patients with severe anemia, recurrent hemolytic, and aplastic crises. The aim of the study was to assess treatment outcomes in patients with hereditary spherocytosis who underwent total or partial laparoscopic splenectomy. Fifteen patients aged 4-17 yr underwent laparoscopic splenectomy from 2009 to 2012. Partial and total splenectomies were performed (five and 10 children, respectively). Hematologic parameters, liver function tests, and splenic volume before and after the surgery were analyzed retrospectively. Total follow-up was 1-30 months. Hospitalization and operating time were similar in both groups. In partial splenectomy group, branches of splenic arteries gave better blood supply than short gastric vessels. In both groups, hematologic parameters were improved. Postoperative markedly elevated platelet count was maintained up to 6 months, and after that, platelet count gradually decreased to normal values. Bilirubin level was decreased in early postoperative period; however, it increased later to achieve levels lower than in preoperative period. No severe general infections were observed in both groups. Laboratory parameters (hemoglobin and bilirubin concentrations and RBC) after the surgery improved in all patients, and the effect was maintained during 12 months of follow-up. Platelet count increased significantly after the surgery and was maintained at high levels during the next 6 months. However, it returned to preoperative levels within a year after the surgery. Our study showed that partial splenectomy was not inferior to total splenectomy. However, full assessment requires longer follow-up and larger group of patients.
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Affiliation(s)
- Robert Rogulski
- Department of Pediatric Surgery, Medical University of Warsaw, Warsaw, Poland
| | - Anna Adamowicz-Salach
- Department of Pediatric Haematology and Oncology, Medical University of Warsaw, Warsaw, Poland
| | - Michał Matysiak
- Department of Pediatric Haematology and Oncology, Medical University of Warsaw, Warsaw, Poland
| | - Dariusz Piotrowski
- Department of Pediatric Surgery, Medical University of Warsaw, Warsaw, Poland
| | - Michał Gogolewski
- Department of Pediatric Surgery, Medical University of Warsaw, Warsaw, Poland
| | - Anna Piotrowska
- Department of Pediatric Surgery, Medical University of Warsaw, Warsaw, Poland
| | - Danuta Roik
- Department of Pediatric Radiology, Medical University of Warsaw, Warsaw, Poland
| | - Andrzej Kamiński
- Department of Pediatric Surgery, Medical University of Warsaw, Warsaw, Poland
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6
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Casale M, Perrotta S. Splenectomy for hereditary spherocytosis: complete, partial or not at all? Expert Rev Hematol 2014; 4:627-35. [DOI: 10.1586/ehm.11.51] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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7
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Laparoscopic splenectomy in patients with hereditary spherocytosis: report on 12 consecutive cases. Updates Surg 2013; 65:277-81. [DOI: 10.1007/s13304-013-0236-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Accepted: 10/02/2013] [Indexed: 10/26/2022]
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8
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Da Costa L, Galimand J, Fenneteau O, Mohandas N. Hereditary spherocytosis, elliptocytosis, and other red cell membrane disorders. Blood Rev 2013; 27:167-78. [PMID: 23664421 DOI: 10.1016/j.blre.2013.04.003] [Citation(s) in RCA: 208] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Hereditary spherocytosis and elliptocytosis are the two most common inherited red cell membrane disorders resulting from mutations in genes encoding various red cell membrane and skeletal proteins. Red cell membrane, a composite structure composed of lipid bilayer linked to spectrin-based membrane skeleton is responsible for the unique features of flexibility and mechanical stability of the cell. Defects in various proteins involved in linking the lipid bilayer to membrane skeleton result in loss in membrane cohesion leading to surface area loss and hereditary spherocytosis while defects in proteins involved in lateral interactions of the spectrin-based skeleton lead to decreased mechanical stability, membrane fragmentation and hereditary elliptocytosis. The disease severity is primarily dependent on the extent of membrane surface area loss. Both these diseases can be readily diagnosed by various laboratory approaches that include red blood cell cytology, flow cytometry, ektacytometry, electrophoresis of the red cell membrane proteins, and mutational analysis of gene encoding red cell membrane proteins.
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Affiliation(s)
- Lydie Da Costa
- AP-HP, Service d'Hématologie Biologique, Hôpital R. Debré, Paris, F-75019, France.
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Wood JH, Partrick DA, Hays T, Sauaia A, Karrer FM, Ziegler MM. Contemporary pediatric splenectomy: continuing controversies. Pediatr Surg Int 2011; 27:1165-71. [PMID: 21626013 DOI: 10.1007/s00383-011-2929-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/09/2011] [Indexed: 11/25/2022]
Abstract
PURPOSE We undertook the current study to update the literature on pediatric splenectomy in the age of minimally invasive proficiency among pediatric surgeons. The study is designed to address specific concerns among surgeons about the suitability of the laparoscopic approach in specific situations and among hematologists about the relative benefits and risks of splenectomy in children. METHODS Retrospective analysis of clinicopathologic data for 118 children who underwent open (OS) or laparoscopic (LS) splenectomy at an urban tertiary children's hospital from January 2000 to July 2008. RESULTS One hundred and three cases (87%) were started as LS. Operative times were equivalent for LS and OS (P = 0.8). In the LS group, there were four conversions (3.9%) from LS to OS and five early post-operative complications (4.9%). Median length of stay was 2 days for LS and 4 days for both OS and LS converted to OS (P < 0.0001). The ten largest spleens removed by LS had greater mass (P = 0.02) and tended to have greater volume (P = 0.1) than those removed by OS. Children with hereditary spherocytosis, ITP, and hemoglobinopathy had favorable clinical outcomes, regardless of operative approach. There were no cases of overwhelming post-splenectomy sepsis in this series. CONCLUSIONS Laparoscopic splenectomy is the preferred approach for splenectomy in children with hematological diseases, with or without splenomegaly. Compared to open splenectomy, laparoscopic splenectomy has equivalent operative time and improved length of stay. Both approaches have excellent therapeutic outcomes for appropriate indications.
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Affiliation(s)
- James H Wood
- Department of Surgery, University of Colorado Denver School of Medicine, Aurora, CO, USA
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Oakley OR, Frazer ML, Ko C. Pituitary-ovary-spleen axis in ovulation. Trends Endocrinol Metab 2011; 22:345-52. [PMID: 21600783 PMCID: PMC3161174 DOI: 10.1016/j.tem.2011.04.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2010] [Revised: 04/05/2011] [Accepted: 04/07/2011] [Indexed: 01/08/2023]
Abstract
Leukocytes are rapidly recruited to the preovulatory ovary and play a crucial role as facilitators of ovulation and luteal formation. In this article, recent findings on leukocyte trafficking to the ovary, as well as the physiological role of leukocytes in the ovary, will be summarized and discussed. We then explore the novel hypothesis that the hypothalamus-pituitary-ovary (HPO) axis might include the spleen as a reservoir of leukocytes by summarizing recent reports on this topic, both in the fields of immunology and reproductive biology.
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Affiliation(s)
- Oliver R Oakley
- Division of Clinical and Reproductive Sciences, Department of Clinical Sciences, College of Health Sciences, University of Kentucky, Lexington, Kentucky 40536, USA
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Tracy ET, Haas KM, Gentry T, Danko M, Roberts JL, Kurtzberg J, Rice HE. Partial splenectomy but not total splenectomy preserves immunoglobulin M memory B cells in mice. J Pediatr Surg 2011; 46:1706-10. [PMID: 21929978 DOI: 10.1016/j.jpedsurg.2011.04.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2010] [Revised: 04/20/2011] [Accepted: 04/20/2011] [Indexed: 11/24/2022]
Abstract
PURPOSE The mechanism by which partial splenectomy preserves splenic immune function is unknown. Immunoglobulin (Ig) M memory B cells are critical for the immune response against encapsulated bacteria and are reduced in asplenic patients, although it is unknown whether partial splenectomy can preserve memory B cells. We hypothesized that IgM memory B cells (murine B-1a cells) would be preserved after partial splenectomy but not after total splenectomy in mice. METHODS We performed total splenectomy (n = 17), partial splenectomy (n = 10), or sham laparotomy (n = 16) on C57BL/6J mice. Mice were killed on postoperative day 10 or 30, and peritoneal washings were analyzed by multiparameter flow cytometry for expression of murine B-1a cells (IgM(pos)IgD(dull)CD5(pos)B220(dull)). RESULTS We found that B-1a cells were significantly reduced after both total and partial splenectomies compared with sham laparotomy in the early postoperative period, although normal levels of B-1a cells returned by postoperative day 30 in mice undergoing partial splenectomy but not total splenectomy. CONCLUSION Partial splenectomy but not total splenectomy preserves the B-1a B-cell population in mice within 30 days after surgery. Maintenance of these critical B cells may contribute to the preservation of a splenic-dependent immune response after partial splenectomy.
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Affiliation(s)
- Elisabeth T Tracy
- Department of Surgery, Duke University Medical Center, Durham, NC 22710, USA
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12
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Single-port laparoscopic partial splenectomy: a case report. Surg Laparosc Endosc Percutan Tech 2011; 20:e164-6. [PMID: 20975492 DOI: 10.1097/sle.0b013e3181f13e09] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
With the better understanding of the importance of the spleen as a primary organ of the human immune system, there has been an increased interest in performing the partial splenectomy for a number of indications such as nonparasitic cysts, benign tumors, staging of lymphomas, etc. Moreover, laparoscopic partial splenectomy has been gaining more interest as the recommended approach for benign splenic disorders to preserve the splenic function with very low recurrence rates. Meanwhile, many surgeons have attempted to reduce the number and size of the ports in laparoscopic surgery with the aim of inducing less parietal trauma and fewer scars. One of these efforts is single-port laparoscopic surgery, which is a rapidly evolving field all over the world. Here, we describe a feasible method of single-port laparoscopic partial splenectomy for treating a benign splenic cyst that was located in the upper medial aspect of the spleen.
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13
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Moreira LL, Dias T, Dias LG, Rogão M, Da Silva JP, Estevinho LM. Propolis influence on erythrocyte membrane disorder (hereditary spherocytosis): A first approach. Food Chem Toxicol 2011; 49:520-6. [DOI: 10.1016/j.fct.2010.11.042] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2010] [Revised: 11/20/2010] [Accepted: 11/29/2010] [Indexed: 11/17/2022]
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Buesing KL, Tracy ET, Kiernan C, Pastor AC, Cassidy LD, Scott JP, Ware RE, Davidoff AM, Rescorla FJ, Langer JC, Rice HE, Oldham KT. Partial splenectomy for hereditary spherocytosis: a multi-institutional review. J Pediatr Surg 2011; 46:178-83. [PMID: 21238662 DOI: 10.1016/j.jpedsurg.2010.09.090] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2010] [Accepted: 09/30/2010] [Indexed: 12/11/2022]
Abstract
BACKGROUND/PURPOSE Partial splenectomy has emerged as a surgical option for selected children with hereditary spherocytosis, with the goal of reducing anemia while preserving splenic function. This multi-institutional study is the largest series to date examining outcomes data for partial splenectomy in patients with hereditary spherocytosis. METHODS Data were collected retrospectively from 5 North American pediatric hospitals. Sixty-two children underwent partial splenectomy for hereditary spherocytosis between 1990 and 2008. RESULTS At 1 year following partial splenectomy, mean hemoglobin significantly increased by 3.0 ± 1.4 g/dL (n = 52), reticulocyte count decreased by 6.6% ± 6.6% (n = 41), and bilirubin level decreased by 1.3 ± 0.9 mg/dL (n = 25). Patients with poor or transient hematologic response were found to have significantly more splenic regeneration postoperatively compared with patients with a durable clinical response (maximal spleen dimension, 9.0 ± 3.4 vs 6.3 ± 2.2 cm). Clinically significant recurrence of anemia or abdominal pain led to completion splenectomy in 4.84% of patients. No patients developed postsplenectomy sepsis. CONCLUSIONS Our multi-institutional review indicates that partial splenectomy for hereditary spherocytosis leads to sustained and clinically significant improvement in hematologic profiles and clinical symptoms in most patients. Our data support partial splenectomy as an alternative for selected children with hereditary spherocytosis.
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Affiliation(s)
- Keely L Buesing
- Children's Hospital of Wisconsin/Medical College of Wisconsin, Milwaukee, WI 53226, USA
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Tracy ET, Talbot LJ, Kurtzberg J, Rice HE. Splenectomy and partial splenectomy improve hematopoietic stem cell engraftment in hypersplenic mice. J Pediatr Surg 2010; 45:1365-9. [PMID: 20620346 DOI: 10.1016/j.jpedsurg.2010.02.114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2010] [Accepted: 02/23/2010] [Indexed: 11/18/2022]
Abstract
BACKGROUND Hematopoietic stem cell (HSC) engraftment is delayed after transplantation in children with hypersplenism, increasing the morbidity and costs of care. Preliminary clinical data suggest that splenectomy before HSC transplantation may improve HSC engraftment, although this observation has not been tested in an animal model. METHODS We performed total splenectomy (n = 22), partial splenectomy (n = 16), or sham laparotomy (n = 21) on erythrocyte protein 4.2 knockout mice, a murine model of hereditary spherocytosis with hypersplenism. After 10 days, we lethally irradiated the mice, transplanted 3 x 10(6) allogeneic bone marrow cells, and then assessed engraftment using serial complete blood counts. Successful engraftment was defined as recovery of hemoglobin, neutrophil, or platelet counts. We compared engraftment rate using chi(2) test and time to engraftment using Student's t test analysis, with significance defined as P < .05. RESULTS Total splenectomy increased the rate of successful HSC engraftment and decreased the interval to HSC engraftment compared with controls. Similarly, partial splenectomy decreased the interval to HSC engraftment, with a nonsignificant trend toward improved overall rate of successful HSC engraftment. CONCLUSION Partial or total splenectomy before HSC transplantation improves HSC engraftment in hypersplenic mice. This model supports consideration of splenic resection in hypersplenic children requiring HSC transplantation.
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Affiliation(s)
- Elisabeth T Tracy
- Department of Surgery, Duke University Medical Center, Durham, NC 27710, USA
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16
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Vick LR, Gosche JR, Islam S. Partial splenectomy prevents splenic sequestration crises in sickle cell disease. J Pediatr Surg 2009; 44:2088-91. [PMID: 19944213 DOI: 10.1016/j.jpedsurg.2009.06.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2009] [Revised: 05/27/2009] [Accepted: 06/01/2009] [Indexed: 11/26/2022]
Abstract
PURPOSE Acute splenic sequestrations (SSs) are potentially fatal complications in sickle cell disease (SCD). Total splenectomies in young patients may predispose them to a higher risk of overwhelming infections, whereas partial splenectomy may maintain immunocompetence. We present our series of partial splenectomies in patients with multiple SS episodes. METHODS We retrospectively reviewed the records of 6 patients who underwent open partial splenectomies for SS. Data on their clinical courses were collected and analyzed. RESULTS None of the 6 patients had SS postprocedure, down from 2.1 +/- 1.0 (P = .003) sequestrations per year and 3.5 +/- 1.4 (P = .002) total sequestrations per patient. The transfusion requirements were significantly reduced postoperatively (10.2 +/- 5.6 vs 2.0 +/- 3.1 per year; P = .002). There was no increase in the infection-related hospital admissions during the period of follow-up (1.5 +/- 1.8 vs 0.8 +/- 0.8 per year after partial splenectomy; P = .363). The upper pole was preserved in all cases with blood supply off the main splenic artery. CONCLUSIONS Partial splenectomy decreases the risk of SS in SCD and reduces the need for blood transfusions. Infection rates did not increase after the procedure during the follow-up period. Partial splenectomy should be considered for patients who experience multiple acute SS crises or have long-term transfusion requirements.
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Affiliation(s)
- Laura R Vick
- Division of Pediatric Surgery, Department of Surgery, University of Mississippi Medical Center, Jackson, MS 39216, USA
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Schilling RF. Risks and benefits of splenectomyversusno splenectomy for hereditary spherocytosis - a personal view. Br J Haematol 2009; 145:728-32. [DOI: 10.1111/j.1365-2141.2009.07694.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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