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Dabravolskaite V, Xourgia E, Kotelis D, Makaloski V. The Safety and Outcome of Minimally Invasive Staged Segmental Artery Coil Embolization (MIS 2ACE) Prior Thoracoabdominal Aortic Aneurysm Repair: A Single-Center Study, Systematic Review, and Meta-Analysis. J Clin Med 2024; 13:1408. [PMID: 38592242 PMCID: PMC10934631 DOI: 10.3390/jcm13051408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/26/2024] [Accepted: 02/23/2024] [Indexed: 04/10/2024] Open
Abstract
BACKGROUND Minimally Invasive Staged Segmental Artery Coil Embolization (MIS2ACE) is a novel technique of spinal cord preconditioning used to reduce the risk of paraplegia in thoracoabdominal aortic aneurysm (TAAA) repair. In this study, we report our experience with MIS2ACE, including both degenerative and post-dissection TAAA, while we attempt to systematically summarize relevant data available in the literature. DESIGN single-center observational study with systematic review of the literature and meta-analysis. METHODS Initial retrospective analysis of 7 patients undergoing MIS2ACE over 12 sessions with a subsequent systematic review of the literature and meta-analysis of the available published data (PROSPERO protocol number: CRD42023477411). Baseline patient and aneurysm characteristics, along with procedural technique and outcomes, were analyzed. One-arm pooling of proportions was used to summarize available published data. RESULTS We treated seven patients (5 males, 71%) with a median age of 69 years (IQR 55,69). According to the Crawford classification, five patients (1%) had extent II TAAA, and two (29%) had extent III TAAA. Five patients (71%) had post-dissection -TAAA; four of them were after Stanford type A dissection, and one had a chronic type B dissection. Three patients (43%) had connective tissue disease. Of the seven patients, six (86%) underwent previous aortic surgery, while the median aneurysm diameter was 58 mm (IQR 55,58). MIS2ACE was successful in 11 sessions (92%). The median number of embolized arteries was 4 (IQR 1,4). There were no periprocedural complications in any embolization. The median embolization-operation time interval was 37.0 days (IQR 31,78). Two patients had open and five endovascular treatment. There were no events of spinal cord ischemia either after MIS2ACE or after the aortic repair. Out of the 432 initially retrieved articles, we included two studies in the meta-analysis, including patients with MIS2ACE for spinal cord preconditioning in addition to our cohort. The prevalence of pooled postoperative spinal cord ischemia among MIS2ACE patients is 1.9% (95% CI -0.028 to 0.066, p = 0.279; 3 studies; 81 patients, 127 coiling sessions). CONCLUSIONS While the current published data is limited, our study further confirms that MIS2ACE is a technically feasible and safe option for spinal cord preconditioning.
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Affiliation(s)
- Vaiva Dabravolskaite
- Department of Vascular Surgery, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse 18, 3010 Bern, Switzerland; (V.D.); (E.X.); (D.K.)
- Department of Vascular Surgery, Turku University Hospital, 20100 Turku, Finland
- Satasairaala Hospital, 28100 Pori, Finland
| | - Eleni Xourgia
- Department of Vascular Surgery, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse 18, 3010 Bern, Switzerland; (V.D.); (E.X.); (D.K.)
| | - Drosos Kotelis
- Department of Vascular Surgery, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse 18, 3010 Bern, Switzerland; (V.D.); (E.X.); (D.K.)
| | - Vladimir Makaloski
- Department of Vascular Surgery, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse 18, 3010 Bern, Switzerland; (V.D.); (E.X.); (D.K.)
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Herajärvi J, Juvonen T. Preparing the spinal cord - priming or preconditioning? A systematic review of experimental studies. Scand Cardiovasc J Suppl 2023; 57:2166100. [PMID: 36660818 DOI: 10.1080/14017431.2023.2166100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Objectives. Paraplegia is devastating complication associated with thoracic and thoracoabdominal aortic aneurysm repair. Vast evidence has been gathered on pre-, peri- and postoperative protective adjuncts aiming to minimize spinal cord ischemia. This review focuses on the pretreatment phase of open surgical or endovascular aortic procedures and gathers the experimental data on the interventional preconditioning and priming methods that increase the spinal cord ischemic tolerance. Design. By the start of March 2021, a systematic review was performed in PubMed, Scopus and Web of Science core collection to identify the articles that reported (i) either an ischemic preconditioning, remote ischemic preconditioning or priming method prior to (ii) experimental spinal cord ischemia performed in endovascular or open surgical fashion mimicking either thoracic, abdominal or thoracoabdominal aortic aneurysm procedures. (iii) The outcomes were reported via neurological, motor-evoked potential, somatosensory-evoked potential, histopathological, immunohistochemical, physiological analysis, or in different combinations of these measurements. Results. The search yielded 7802 articles, and 57 articles were included in the systematic review. The articles were assessed by the evaluated species, the utilized pretreatment, the measured protective effects, and the suggested underlying mechanisms. Conclusions. The reviewed articles showed several possible mechanisms in ischemic and remote ischemic preconditioning for prevention of spinal cord ischemia. The main suggested method for priming was arteriogenetic stimulus. Future studies should confirm these hints of arteriogenetic stimulus with more precise quantification of the protective recruitment process.
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Affiliation(s)
- Johanna Herajärvi
- Heart and Lung Center, Helsinki University Hospital and University of Helsinki, Helsinki, Finland.,Research Unit of Surgery, Anesthesia and Critical Care, University of Oulu, Oulu, Finland
| | - Tatu Juvonen
- Heart and Lung Center, Helsinki University Hospital and University of Helsinki, Helsinki, Finland.,Research Unit of Surgery, Anesthesia and Critical Care, University of Oulu, Oulu, Finland
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Dias-Neto M, Tenorio ER, Huang Y, Jakimowicz T, Mendes BC, Kölbel T, Sobocinski J, Bertoglio L, Mees B, Gargiulo M, Dias N, Schanzer A, Gasper W, Beck AW, Farber MA, Mani K, Timaran C, Schneider DB, Pedro LM, Tsilimparis N, Haulon S, Sweet M, Ferreira E, Eagleton M, Yeung KK, Khashram M, Varcica A, Lima GB, Baghbani-Oskouei A, Jama K, Panuccio G, Rohlffs F, Chiesa R, Schurink GW, Lemmens C, Gallitto E, Faggioli G, Karelis A, Parodi E, Gomes V, Wanhainen A, Dean A, Colon JP, Pavarino F, E Melo RG, Crawford S, Garcia R, Ribeiro T, Kappe KO, van Knippenberg SEM, Tran BL, Gormley S, Oderich GS. Comparison of single- and multistage strategies during fenestrated-branched endovascular aortic repair of thoracoabdominal aortic aneurysms. J Vasc Surg 2023; 77:1588-1597.e4. [PMID: 36731757 DOI: 10.1016/j.jvs.2023.01.188] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 01/15/2023] [Accepted: 01/20/2023] [Indexed: 02/03/2023]
Abstract
OBJECTIVE The aim of this study was to compare outcomes of single or multistage approach during fenestrated-branched endovascular aortic repair (FB-EVAR) of extensive thoracoabdominal aortic aneurysms (TAAAs). METHODS We reviewed the clinical data of consecutive patients treated by FB-EVAR for extent I to III TAAAs in 24 centers (2006-2021). All patients received a single brand manufactured patient-specific or off-the-shelf fenestrated-branched stent grafts. Staging strategies included proximal thoracic aortic repair, minimally invasive segmental artery coil embolization, temporary aneurysm sac perfusion and combinations of these techniques. Endpoints were analyzed for elective repair in patients who had a single- or multistage approach before and after propensity score adjustment for baseline differences, including the composite 30-day/in-hospital mortality and/or permanent paraplegia, major adverse event, patient survival, and freedom from aortic-related mortality. RESULTS A total of 1947 patients (65% male; mean age, 71 ± 8 years) underwent FB-EVAR of 155 extent I (10%), 729 extent II (46%), and 713 extent III TAAAs (44%). A single-stage approach was used in 939 patients (48%) and a multistage approach in 1008 patients (52%). A multistage approach was more frequently used in patients undergoing elective compared with non-elective repair (55% vs 35%; P < .001). Staging strategies were proximal thoracic aortic repair in 743 patients (74%), temporary aneurysm sac perfusion in 128 (13%), minimally invasive segmental artery coil embolization in 10 (1%), and combinations in 127 (12%). Among patients undergoing elective repair (n = 1597), the composite endpoint of 30-day/in-hospital mortality and/or permanent paraplegia rate occurred in 14% of single-stage and 6% of multistage approach patients (P < .001). After adjustment with a propensity score, multistage approach was associated with lower rates of 30-day/in-hospital mortality and/or permanent paraplegia (odds ratio, 0.466; 95% confidence interval, 0.271-0.801; P = .006) and higher patient survival at 1 year (86.9±1.3% vs 79.6±1.7%) and 3 years (72.7±2.1% vs 64.2±2.3%; adjusted hazard ratio, 0.714; 95% confidence interval, 0.528-0.966; P = .029), compared with a single stage approach. CONCLUSION Staging elective FB-EVAR of extent I to III TAAAs was associated with decreased risk of mortality and/or permanent paraplegia at 30 days or within hospital stay, and with higher patient survival at 1 and 3 years.
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Affiliation(s)
- Marina Dias-Neto
- The University of Texas Health Science Center at Houston, Houston, TX
| | - Emanuel R Tenorio
- The University of Texas Health Science Center at Houston, Houston, TX
| | - Ying Huang
- The University of Texas Health Science Center at Houston, Houston, TX
| | | | - Bernardo C Mendes
- Division of Vascular and Endovascular Surgery, Mayo Clinic, Rochester, MN
| | - Tilo Kölbel
- University Medical Center Eppendorf (UKE), Hamburg, Germany
| | - Jonathan Sobocinski
- Vascular Surgery, Aortic Centre, Université de Lille, CHU Lille, France; Université de Lille, INSERM, CHU Lille, Lille, France
| | - Luca Bertoglio
- Vita Salute San Raffaele University, San Raffaele Hospital, Milan, Italy
| | - Barend Mees
- Maastricht University Medical Center, Maastricht University, Maastricht, Netherlands
| | - Mauro Gargiulo
- Vascular Surgery, University of Bologna, University Hospital Policlinico S. Orsola, Bologna, Italy
| | - Nuno Dias
- Vascular Centre, Department of Thoracic Surgery and Vascular Diseases, Skåne University hospital and Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | | | - Warren Gasper
- University of California San Francisco, San Francisco CA
| | - Adam W Beck
- University of Alabama at Birmingham, Birmingham, AL
| | - Mark A Farber
- Division of Vascular Surgery, Department of Surgery, University of North Carolina, Chapel Hill, NC
| | - Kevin Mani
- Department of Surgical Sciences, Division of Vascular Surgery, Uppsala University, Uppsala, Sweden
| | - Carlos Timaran
- Clinical Heart and Vascular Center, University of Texas Southwestern, Dallas, TX
| | - Darren B Schneider
- Division of Vascular Surgery and Endovascular Therapy, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Luis Mendes Pedro
- Department of Vascular Surgery of the Hospital Santa Maria (CHULN) and Faculty of Medicine of the University of Lisbon, Lisbon, Portugal
| | - Nikolaos Tsilimparis
- Department of Vascular Surgery, Ludwig-Maximilians-University Hospital, Munich, Germany
| | - Stéphan Haulon
- Aortic Centre, Hôpital Marie Lannelongue, Groupe Hospitalier Paris Saint-Joseph, Université Paris Saclay, Paris, France
| | - Matt Sweet
- Division of Vascular Surgery, Department of Surgery, University of Washington, Seattle, WA
| | - Emília Ferreira
- Department of Angiology and Vascular Surgery, Hospital de Santa Marta, Centro Hospitalar Universitário de Lisboa Central; NOVA Medical School, Universidade NOVA de Lisboa, Lisbon, Portugal
| | - Matthew Eagleton
- Division of Vascular and Endovascular Surgery, Massachusetts General Hospital, Boston, MA
| | - Kak Khee Yeung
- Department of Vascular Surgery, Amsterdam Cardiovascular Sciences, Amsterdam UMC, location VU medical center, Amsterdam, the Netherlands
| | - Manar Khashram
- Department of Vascular Surgery, Waikato Hospital, Hamilton, New Zealand; Department of Surgery, The University of Auckland, Auckland, New Zealand
| | - Andrea Varcica
- The University of Texas Health Science Center at Houston, Houston, TX
| | - Guilherme B Lima
- The University of Texas Health Science Center at Houston, Houston, TX
| | | | | | | | - Fiona Rohlffs
- University Medical Center Eppendorf (UKE), Hamburg, Germany
| | - Roberto Chiesa
- Vita Salute San Raffaele University, San Raffaele Hospital, Milan, Italy
| | - Geert Willem Schurink
- Maastricht University Medical Center, Maastricht University, Maastricht, Netherlands
| | - Charlotte Lemmens
- Maastricht University Medical Center, Maastricht University, Maastricht, Netherlands
| | - Enrico Gallitto
- Vascular Surgery, University of Bologna, University Hospital Policlinico S. Orsola, Bologna, Italy
| | - Gianluca Faggioli
- Vascular Surgery, University of Bologna, University Hospital Policlinico S. Orsola, Bologna, Italy
| | - Angelos Karelis
- Vascular Centre, Department of Thoracic Surgery and Vascular Diseases, Skåne University hospital and Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Ezequiel Parodi
- Division of Vascular Surgery, Department of Surgery, University of North Carolina, Chapel Hill, NC
| | - Vivian Gomes
- Division of Vascular Surgery, Department of Surgery, University of North Carolina, Chapel Hill, NC
| | - Anders Wanhainen
- Department of Surgical Sciences, Division of Vascular Surgery, Uppsala University, Uppsala, Sweden
| | - Anastasia Dean
- Department of Surgical Sciences, Division of Vascular Surgery, Uppsala University, Uppsala, Sweden
| | - Jesus Porras Colon
- Clinical Heart and Vascular Center, University of Texas Southwestern, Dallas, TX
| | - Felipe Pavarino
- Clinical Heart and Vascular Center, University of Texas Southwestern, Dallas, TX
| | - Ryan Gouveia E Melo
- Department of Vascular Surgery of the Hospital Santa Maria (CHULN) and Faculty of Medicine of the University of Lisbon, Lisbon, Portugal; Department of Vascular Surgery, Ludwig-Maximilians-University Hospital, Munich, Germany
| | - Sean Crawford
- Aortic Centre, Hôpital Marie Lannelongue, Groupe Hospitalier Paris Saint-Joseph, Université Paris Saclay, Paris, France
| | - Rita Garcia
- Department of Angiology and Vascular Surgery, Hospital de Santa Marta, Centro Hospitalar Universitário de Lisboa Central; NOVA Medical School, Universidade NOVA de Lisboa, Lisbon, Portugal
| | - Tiago Ribeiro
- Department of Angiology and Vascular Surgery, Hospital de Santa Marta, Centro Hospitalar Universitário de Lisboa Central; NOVA Medical School, Universidade NOVA de Lisboa, Lisbon, Portugal
| | - Kaj Olav Kappe
- Department of Vascular Surgery, Amsterdam Cardiovascular Sciences, Amsterdam UMC, location VU medical center, Amsterdam, the Netherlands
| | | | - Bich Lan Tran
- Department of Vascular Surgery, Amsterdam Cardiovascular Sciences, Amsterdam UMC, location VU medical center, Amsterdam, the Netherlands
| | - Sinead Gormley
- Department of Vascular Surgery, Waikato Hospital, Hamilton, New Zealand; Department of Surgery, The University of Auckland, Auckland, New Zealand
| | - Gustavo S Oderich
- The University of Texas Health Science Center at Houston, Houston, TX.
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Honkanen HP, Mustonen C, Herajärvi J, Tuominen H, Starck T, Kallio M, Kiviluoma K, Anttila V, Juvonen T. Priming protects the spinal cord in an experimental aortic occlusion model. J Thorac Cardiovasc Surg 2022; 164:801-809.e2. [PMID: 33220965 DOI: 10.1016/j.jtcvs.2020.09.137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 09/23/2020] [Accepted: 09/28/2020] [Indexed: 10/23/2022]
Abstract
OBJECTIVES Paraplegia is a devastating complication in aortic aneurysm surgery. Modifying the spinal cord vasculature is a promising method in spinal cord protection. The aim of this study was to assess whether the spinal cord can be primed by occluding thoracic segmental arteries before simulated aneurysm repair in a porcine model. METHODS Twelve piglets were randomly assigned to the priming group (6) and the control group (6). Eight uppermost thoracic segmental arteries were occluded at 5-minute intervals in the priming group before a 25-minute aortic crossclamp. In the control group, the aorta was crossclamped for 25 minutes. During the first 5 minutes, 8 segmental arteries were occluded. After the aortic crossclamping, piglets were observed under anesthesia for 5 hours and followed up 5 days postoperatively. Near-infrared spectroscopy, motor-evoked potentials, blood samples, neurology with the modified Tarlov score, and histopathology of the spinal cord were assessed. RESULTS The median Tarlov score during the first postoperative day was higher in the priming group than in the control group (P = .001). At the end, 50% of the control animals had paraplegia compared with 0% of paraplegia in the priming group. The mean regional histopathologic score differed between the priming group and the control group (P = .02). The priming group had higher motor-evoked potentials during the operation at separate time points. The lactate levels were lower in the priming group compared with the control group (Pg = .001, Pg×t = .18). CONCLUSIONS Acute priming protects the spinal cord from ischemic injury in an experimental aortic crossclamp model.
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Affiliation(s)
- Hannu-Pekka Honkanen
- Research Unit of Surgery, Anesthesia and Intensive Care, University of Oulu, Medical Research Center, Oulu, Finland.
| | - Caius Mustonen
- Research Unit of Surgery, Anesthesia and Intensive Care, University of Oulu, Medical Research Center, Oulu, Finland
| | - Johanna Herajärvi
- Research Unit of Surgery, Anesthesia and Intensive Care, University of Oulu, Medical Research Center, Oulu, Finland; University Department of Cardiac Surgery, Heart Centre Leipzig, Leipzig, Germany
| | - Hannu Tuominen
- Department of Pathology, Oulu University Hospital, Oulu, Finland
| | - Tuomo Starck
- Research Unit of Medical Imaging, Physics and Technology, Medical Research Center Oulu University of Oulu, Oulu, Finland; Department of Clinical Neurophysiology, Oulu University Hospital, Oulu, Finland
| | - Mika Kallio
- Research Unit of Medical Imaging, Physics and Technology, Medical Research Center Oulu University of Oulu, Oulu, Finland; Department of Clinical Neurophysiology, Oulu University Hospital, Oulu, Finland
| | - Kai Kiviluoma
- Research Unit of Surgery, Anesthesia and Intensive Care, University of Oulu, Medical Research Center, Oulu, Finland
| | - Vesa Anttila
- Heart Center, University of Turku and Turku University Hospital, Turku, Finland
| | - Tatu Juvonen
- Research Unit of Surgery, Anesthesia and Intensive Care, University of Oulu, Medical Research Center, Oulu, Finland; Department of Cardiac Surgery, Heart and Lung Center, Helsinki University Central Hospital, Helsinki, Finland
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Addas JAK, Mafeld S, Mahmood DN, Sidhu A, Ouzounian M, Lindsay TF, Tan KT. Minimally Invasive Segmental Artery Coil Embolization (MISACE) Prior to Endovascular Thoracoabdominal Aortic Aneurysm Repair. Cardiovasc Intervent Radiol 2022; 45:1462-1469. [PMID: 35927497 DOI: 10.1007/s00270-022-03230-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 07/15/2022] [Indexed: 11/02/2022]
Abstract
PURPOSE Minimally Invasive Segmental Artery Coil Embolization (MISACE) is a novel approach to reduce paraplegia risk in Thoracoabdominal aortic aneurysm (TAAA) repair with limited data. We report our experience with MISACE as a method of spinal cord pre-conditioning to prevent spinal cord ischemia following endovascular repair of TAAA. MATERIAL AND METHODS A retrospective analysis of 17 patients who had an attempted MISACE prior to endovascular TAAA repair with mean follow-up of 350 days (2017-2020). Baseline patient and aneurysm characteristics along with procedural technique and outcomes were analyzed. RESULTS Mean age of 69 years and 76.5% were males. TAAA Crawford classification were II, n = 6 (35.3%), III, n = 4 (23.5%) and IV, n = 5 (29.4%). The mean aortic diameter was 70.6 ± 10.9 mm. Staged repair was performed on 9 patients. Technically successful embolization occurred in 14 patients (82.4%) and was unsuccessful in 3 patients. The median number of embolized arteries was 3 and 71% of the target arteries were between T9 and T12. Mean fluoroscopy time was 51.5 ± 22.5 min and mean contrast volume used was 132.8 ± 56.1 mL. Average number of catheters used was 4.6 and 3.5 wires. No complications related to the procedure. Mean interval between embolization to endovascular TAAA repair was 51.2 days (5-110 days). All patients received spinal drainage at the time of repair. Postoperatively, 2/14 of patients developed paraparesis in the MISACE successful group and 1/3 patients developed paraplegia in the unsuccessful group. CONCLUSIONS MISACE is a promising strategy to prevent SCI. This data demonstrates the technique is feasible and safe but anatomic challenges remain.
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Affiliation(s)
- Jamil A K Addas
- Department of Vascular and Interventional Radiology, University Health Network, Toronto, Canada.
| | - Sebastian Mafeld
- Department of Vascular and Interventional Radiology, University Health Network, Toronto, Canada
| | - Daniyal N Mahmood
- Division of Vascular Surgery, University Health Network, Toronto, Canada
| | - Arshdeep Sidhu
- Department of Vascular and Interventional Radiology, University Health Network, Toronto, Canada
| | - Maral Ouzounian
- Division of Cardiovascular Surgery, University Health Network, Toronto, Canada
| | - Thomas F Lindsay
- Division of Vascular Surgery, University Health Network, Toronto, Canada
| | - Kong Teng Tan
- Department of Vascular and Interventional Radiology, University Health Network, Toronto, Canada
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OUP accepted manuscript. Eur J Cardiothorac Surg 2022; 62:6570935. [DOI: 10.1093/ejcts/ezac213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 02/26/2022] [Accepted: 04/10/2022] [Indexed: 11/13/2022] Open
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von Aspern K, Haunschild J, Heier M, Ossmann S, Mohr FW, Borger MA, Etz CD. Experimental near-infrared spectroscopy-guided minimally invasive segmental artery occlusion. Eur J Cardiothorac Surg 2021; 60:48-55. [PMID: 33538301 DOI: 10.1093/ejcts/ezab005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 11/28/2020] [Accepted: 12/11/2020] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVES Minimally invasive staged segmental artery (SA) coil- and plug embolization is a new method for paraplegia prevention associated with extensive aortic procedures. Near-infrared spectroscopy of the paraspinal collateral network (cnNIRS) has emerged as a non-invasive method for spinal cord monitoring. The aim of this study was to evaluate cnNIRS to guide minimally invasive SA occlusion. METHODS In a chronic large animal experiment, 18 juvenile pigs underwent two-stage minimally invasive staged SA coil- and plug embolization for complete SA occlusion. Coil-embolization was performed either by SA main stem occlusion (characteristic of pig anatomy) or separately for the left- and right SA. Lumbar cnNIRS was recorded during and after the procedure. Neurological status was assessed up to 3 days after complete SA occlusion. RESULTS Mean time from SA coil embolization to minimum cnNIRS values was 11 ± 5 min with an average decrease from 101 ± 2% to 78 ± 8% of baseline (difference: -23 ± 9, P < 0.001). Lumbar cnNIRS demonstrated significant differences between left and right when SAs were occluded separately in all cases (-7 ± 4%, 1 min after first SA occlusion; P = 0.001). Permanent paraplegia occurred in 2 (11%) and any kind of neurological deficit-temporary or permanent-in 7 animals (39%). Association between lumbar cnNIRS and neurological outcome after minimally invasive staged SA coil- and plug embolization suggests positive correlation (R = 0.5, P = 0.052). CONCLUSIONS Lumbar cnNIRS independently reacts to unilateral SA occlusion. cnNIRS-guided SA occlusion is feasible and may become a useful adjunct facilitating adequate and complete vessel occlusion.
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Affiliation(s)
- Konstantin von Aspern
- University Department for Cardiac Surgery, Leipzig Heart Center, Saxony, Germany.,University of Leipzig, Saxonian Incubator for Clinical Translation (SIKT), Saxony, Germany
| | - Josephina Haunschild
- University Department for Cardiac Surgery, Leipzig Heart Center, Saxony, Germany.,University of Leipzig, Saxonian Incubator for Clinical Translation (SIKT), Saxony, Germany
| | - Marcus Heier
- University of Leipzig, Medical Faculty, Leipzig, Germany
| | - Susann Ossmann
- University Department for Cardiac Surgery, Leipzig Heart Center, Saxony, Germany
| | - Friedrich W Mohr
- University Department for Cardiac Surgery, Leipzig Heart Center, Saxony, Germany
| | - Michael A Borger
- University Department for Cardiac Surgery, Leipzig Heart Center, Saxony, Germany
| | - Christian D Etz
- University Department for Cardiac Surgery, Leipzig Heart Center, Saxony, Germany.,University of Leipzig, Saxonian Incubator for Clinical Translation (SIKT), Saxony, Germany
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Haunschild J, VON Aspern K, Misfeld M, Davierwala P, Borger MA, Etz CD. Spinal cord protection in thoracoabdominal aortic aneurysm surgery: a multimodal approach. THE JOURNAL OF CARDIOVASCULAR SURGERY 2021; 62:316-325. [PMID: 33496426 DOI: 10.23736/s0021-9509.21.11783-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Spinal cord injury (SCI) is one major complication of open and endovascular thoracic and thoracoabdominal aortic aneurysm repair. Despite numerous neuroprotective adjuncts, the incidence of SCI remains high. This review article discusses established and novel adjuncts for spinal cord protection, including priming and preconditioning of the paraspinal collateral network, intraoperative systemic hypothermia, distal aortic perfusion, motor- and somatosensory evoked potentials and noninvasive cnNIRS monitoring as well as peri- and postoperative drainage of cerebrospinal fluid. Regardless of the positive influence of many of these strategies on neurologic outcome, to date no strategy assures definitive preservation of spinal cord integrity during and after aortic aneurysm repair.
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Affiliation(s)
| | | | - Martin Misfeld
- Department of Cardiac Surgery, Leipzig Heart Center, Leipzig, Germany.,Department of Cardiothoracic Surgery, Royal Prince Alfred Hospital, Sydney, Australia.,Faculty of Medicine and Health, Central Clinical School, University of Sydney, Sydney, Australia.,Institute of Academic Surgery, RPAH, Sydney, Australia.,The Baird Institute of Applied Heart and Lung Surgical Research, Sydney, Australia
| | - Piroze Davierwala
- Department of Cardiac Surgery, Leipzig Heart Center, Leipzig, Germany
| | - Michael A Borger
- Department of Cardiac Surgery, Leipzig Heart Center, Leipzig, Germany
| | - Christian D Etz
- Department of Cardiac Surgery, Leipzig Heart Center, Leipzig, Germany -
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von Aspern K, Haunschild J, Borger MA, Etz CD. Anatomical description of the intraspinal collateral network: bringing the concept full circle—is the devil in the details? Eur J Cardiothorac Surg 2020; 59:144-146. [DOI: 10.1093/ejcts/ezaa341] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - Josephina Haunschild
- University Department for Cardiac Surgery, Leipzig Heart Center, Leipzig, Germany
| | - Michael A Borger
- University Department for Cardiac Surgery, Leipzig Heart Center, Leipzig, Germany
| | - Christian D Etz
- University Department for Cardiac Surgery, Leipzig Heart Center, Leipzig, Germany
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von Aspern K, Haunschild J, Khachatryan Z, Simoniuk U, Ossmann S, Borger MA, Etz CD. Mapping the collateral network: Optimal near-infrared spectroscopy optode placement. J Thorac Cardiovasc Surg 2020; 164:e3-e15. [DOI: 10.1016/j.jtcvs.2020.07.103] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 07/10/2020] [Accepted: 07/22/2020] [Indexed: 11/17/2022]
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Haunschild J, von Aspern K, Khachatryan Z, Bianchi E, Friedheim T, Wipper S, Trepte CJ, Ossmann S, Borger MA, Etz CD. Detrimental effects of cerebrospinal fluid pressure elevation on spinal cord perfusion: first-time direct detection in a large animal model. Eur J Cardiothorac Surg 2020; 58:286-293. [DOI: 10.1093/ejcts/ezaa038] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 01/11/2020] [Accepted: 01/17/2020] [Indexed: 12/14/2022] Open
Abstract
Abstract
OBJECTIVES
Cerebrospinal fluid (CSF) drainage is routinely utilized to mitigate perioperative and postoperative spinal cord ischaemia in open and endovascular thoraco-abdominal aortic aneurysm repair to prevent permanent paraplegia. Clinical decision-making in the vulnerable perioperative period, however, is still based on limited clinical and experimental data. Our aim was to investigate the isolated effect of CSF pressure elevation on spinal cord perfusion in an established large animal model.
METHODS
Ten juvenile pigs with normal (native) arterial inflow (patent segmental arteries and collaterals) underwent iatrogenic CSF pressure elevation (×2, ×3, ×4 from their individual baseline pressure). Each pressure level was maintained for 30 min to mimic clinical response time. After the quadrupling of CSF pressure, the dural sac was slowly depressurized against gravity allowing CSF pressure to passively return to baseline values. Measurements were taken 30 and 60 min after normalization, and microspheres for regional blood flow analysis were injected at each time point.
RESULTS
Spinal cord perfusion decreased significantly at all mid-thoracic to lumbar cord segments at the doubling of CSF pressure and declined to values <53% compared to baseline when pressure was quadrupled. Normalizing CSF pressure led to an intense hyperperfusion of up to 186% at the cervical level and 151% within the lumbar region.
CONCLUSIONS
CSF pressure elevation results in a relevant impairment of spinal cord blood supply. Close perioperative and postoperative monitoring of CSF pressure is crucial for maintaining sufficient spinal cord perfusion. Radical and rapid withdrawal of CSF is followed by significant hyperperfusion in all spinal cord segments and may lead to ‘drainage-related’ iatrogenic reperfusion injury—aggravating the risk of delayed spinal cord injury—and should therefore be avoided.
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Affiliation(s)
- Josephina Haunschild
- University Department for Cardiac Surgery, Leipzig Heart Center, Leipzig, Germany
| | | | - Zara Khachatryan
- Heisenberg Working Group for Aortic Surgery, Saxonian Incubator for Clinical Translation, University of Leipzig, Leipzig, Germany
| | - Edoardo Bianchi
- University Department for Cardiac Surgery, Leipzig Heart Center, Leipzig, Germany
| | - Till Friedheim
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, Cardiovascular Research Center, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Sabine Wipper
- Department of Vascular Medicine, German Aortic Center Hamburg, University Heart Center Hamburg-Eppendorf, Hamburg, Germany
| | - Constantin J Trepte
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, Cardiovascular Research Center, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Susann Ossmann
- University Department for Cardiac Surgery, Leipzig Heart Center, Leipzig, Germany
| | - Michael A Borger
- University Department for Cardiac Surgery, Leipzig Heart Center, Leipzig, Germany
| | - Christian D Etz
- University Department for Cardiac Surgery, Leipzig Heart Center, Leipzig, Germany
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