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Riva T, Engelhardt T, Basciani R, Bonfiglio R, Cools E, Fuchs A, Garcia-Marcinkiewicz AG, Greif R, Habre W, Huber M, Petre MA, von Ungern-Sternberg BS, Sommerfield D, Theiler L, Disma N. Direct versus video laryngoscopy with standard blades for neonatal and infant tracheal intubation with supplemental oxygen: a multicentre, non-inferiority, randomised controlled trial. Lancet Child Adolesc Health 2023; 7:101-111. [PMID: 36436541 DOI: 10.1016/s2352-4642(22)00313-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 10/14/2022] [Accepted: 10/14/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND Tracheal intubation in neonates and infants is a potentially life-saving procedure. Video laryngoscopy has been found to improve first-attempt tracheal intubation success and reduce complications compared with direct laryngoscopy in children younger than 12 months. Supplemental periprocedural oxygen might increase the likelihood of successful first-attempt intubation because of an increase in safe apnoea time. We tested the hypothesis that direct laryngoscopy is not inferior to video laryngoscopy when using standard blades and supplemental oxygen is provided. METHODS We did a non-inferiority, international, multicentre, single-blinded, randomised controlled trial, in which we randomly assigned neonates and infants aged up to 52 weeks postmenstrual age scheduled for elective tracheal intubation to either direct laryngoscopy or video laryngoscopy (1:1 ratio, randomly assigned using a secure online service) at seven tertiary paediatric hospitals across Australia, Canada, Italy, Switzerland, and the USA. An expected difficult intubation was the main exclusion criteria. Parents and patients were masked to the assigned group of treatment. All infants received supplemental oxygen (1 L/Kg per min) during laryngoscopy until the correct tracheal tube position was confirmed. The primary outcome was the proportion of first-attempt tracheal intubation success, defined as appearance of end-tidal CO2 curve at the anaesthesia monitor, between the two groups in the modified intention-to-treat analysis. A 10% non-inferiority margin between direct laryngoscopy or video laryngoscopy was applied. The trial is registered with ClinicalTrials.gov (NCT04295902) and is now concluded. FINDINGS Of 599 patients assessed, 250 patients were included between Oct 26, 2020, and March 11, 2022. 244 patients were included in the final modified intention-to-treat analysis. The median postmenstrual age on the day of intubation was 44·0 weeks (IQR 41·0-48·0) in the direct laryngoscopy group and 46·0 weeks (42·0-49·0) in the video laryngoscopy group, 34 (28%) were female in the direct laryngoscopy group and 38 (31%) were female in the video laryngoscopy group. First-attempt tracheal intubation success rate with no desaturation was higher with video laryngoscopy (89·3% [95% CI 83·7 to 94·8]; n=108/121) compared with direct laryngoscopy (78·9% [71·6 to 86·1]; n=97/123), with an adjusted absolute risk difference of 9·5% (0·8 to 18·1; p=0·033). The incidence of adverse events between the two groups was similar (-2·5% [95% CI -9·6 to 4·6]; p=0·490). Post-anaesthesia complications occurred seven times in six patients with no difference between the groups. INTERPRETATION Video laryngoscopy with standard blades in combination with supplemental oxygen in neonates and infants might increase the success rate of first-attempt tracheal intubation, when compared with direct laryngoscopy with supplemental oxygen. The incidence of hypoxaemia increased with the number of attempts, but was similar between video laryngoscopy and direct laryngoscopy. Video laryngoscopy with oxygen should be considered as the technique of choice when neonates and infants are intubated. FUNDING Swiss Pediatric Anaesthesia Society, Swiss Society for Anaesthesia and Perioperative Medicine, Foundation for Research in Anaesthesiology and Intensive Care Medicine, Channel 7 Telethon Trust, Stan Perron Charitable Foundation, National Health and Medical Research Council.
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Affiliation(s)
- Thomas Riva
- Department of Anaesthesiology and Pain Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Thomas Engelhardt
- Department of Anaesthesia, Montreal Children's Hospital, McGill University Health Centre, Montréal, QC, Canada
| | - Reto Basciani
- Department of Anaesthesiology, Kantonsspital Aarau, Aarau, Switzerland
| | - Rachele Bonfiglio
- Unit for Research in Anaesthesia, Department of Paediatric Anaesthesia, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - Evelien Cools
- Unit for Anaesthesiological Investigations, Department of Anaesthesiology, Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals and University of Geneva, Geneva, Switzerland
| | - Alexander Fuchs
- Department of Anaesthesiology and Pain Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Annery G Garcia-Marcinkiewicz
- Department of Anaesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Robert Greif
- School of Medicine, Sigmund Freud University Vienna, Vienna, Austria
| | - Walid Habre
- Unit for Anaesthesiological Investigations, Department of Anaesthesiology, Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals and University of Geneva, Geneva, Switzerland
| | - Markus Huber
- Department of Anaesthesiology and Pain Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Maria-Alexandra Petre
- Department of Anaesthesia, Montreal Children's Hospital, McGill University Health Centre, Montréal, QC, Canada
| | - Britta S von Ungern-Sternberg
- Department of Anaesthesia and Pain Management, Perth Children's Hospital, Perth, Australia; Division of Emergency Medicine, Anaesthesia and Pain Medicine, Medical School, The University of Western Australia, Perth, Australia; Perioperative Medicine Team, Telethon Kids Institute, Perth, Australia
| | - David Sommerfield
- Department of Anaesthesia and Pain Management, Perth Children's Hospital, Perth, Australia; Division of Emergency Medicine, Anaesthesia and Pain Medicine, Medical School, The University of Western Australia, Perth, Australia; Perioperative Medicine Team, Telethon Kids Institute, Perth, Australia
| | - Lorenz Theiler
- Department of Anaesthesiology, Kantonsspital Aarau, Aarau, Switzerland
| | - Nicola Disma
- Unit for Research in Anaesthesia, Department of Paediatric Anaesthesia, IRCCS Istituto Giannina Gaslini, Genova, Italy.
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da Costa BR, Saadat P, Basciani R, Agarwal A, Johnston BC, Jüni P. Visual Analogue Scale has higher assay sensitivity than WOMAC pain in detecting between-group differences in treatment effects: a meta-epidemiological study. Osteoarthritis Cartilage 2021; 29:304-312. [PMID: 33271331 DOI: 10.1016/j.joca.2020.10.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 09/24/2020] [Accepted: 10/14/2020] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To compare assay sensitivity of the Visual Analogue Scale (VAS) for global osteoarthritis pain and the Western Ontario and McMaster University (WOMAC) pain subscale, and the associated between-trial heterogeneity in effect sizes (ES). DESIGN We included trials with placebo, sham or non-intervention control that included at least 100 patients with hip or knee osteoarthritis per arm, reporting both VAS and WOMAC pain scores. ES were calculated as between-group difference in means divided by the pooled standard deviation and compared using a paired t-test. ES and τ2 as a measure of between-trial heterogeneity were combined using random-effects meta-regression with robust variance estimation to account for the correlation of data within trials and meta-analyses. RESULTS Twenty-eight trials with 44 randomized comparisons were included. In 28 comparisons (64%), ES from VAS favoured the intervention more than those from WOMAC pain (P = 0.003). Twenty-six p-values (59%) were smaller according to VAS (P = 0.008). The 44 comparisons contributed to 12 meta-analyses. Eleven meta-analyses (92%) showed larger benefits of interventions according to VAS, with a combined overall difference in ES of -0.08 (95% CI -0.14 to -0.02). τ2 was similar for VAS and WOMAC pain (difference in τ2, -0.003, 95% CI -0.009 to 0.004). CONCLUSION The VAS for global pain had slightly higher assay sensitivity at trial and meta-analysis levels than the WOMAC pain subscale without relevant increase in between-trial heterogeneity.
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Affiliation(s)
- Bruno R da Costa
- Applied Health Research Centre (AHRC), Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, ON, Canada; Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland; Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada.
| | - Pakeezah Saadat
- Applied Health Research Centre (AHRC), Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, ON, Canada; Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada.
| | - Reto Basciani
- Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland; Department of Anesthesiology, Cantonal Hospital Aarau, Aarau, Switzerland.
| | - Arnav Agarwal
- Applied Health Research Centre (AHRC), Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, ON, Canada; Department of Medicine, University of Toronto, Toronto, ON, Canada.
| | - Bradley C Johnston
- Department of Community Health and Epidemiology, Faculty of Medicine, Dalhousie University, Halifax, NS, Canada; Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, ON, Canada; Department of Nutrition, Texas A&M University, College Station, TX, 77845, USA.
| | - Peter Jüni
- Applied Health Research Centre (AHRC), Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, ON, Canada; Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada; Department of Medicine, University of Toronto, Toronto, ON, Canada.
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Rummel C, Basciani R, Nirkko A, Schroth G, Stucki M, Reineke D, Eberle B, Kaiser HA. Spatially extended versus frontal cerebral near-infrared spectroscopy during cardiac surgery: a case series identifying potential advantages. J Biomed Opt 2018; 23:1-11. [PMID: 29359545 DOI: 10.1117/1.jbo.23.1.016012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 12/19/2017] [Indexed: 06/07/2023]
Abstract
Stroke due to hypoperfusion or emboli is a devastating adverse event of cardiac surgery, but early detection and treatment could protect patients from an unfavorable postoperative course. Hypoperfusion and emboli can be detected with transcranial Doppler of the middle cerebral artery (MCA). The measured blood flow velocity correlates with cerebral oxygenation determined clinically by near-infrared spectroscopy (NIRS) of the frontal cortex. We tested the potential advantage of a spatially extended NIRS in detecting critical events in three cardiac surgery patients with a whole-head fiber holder of the FOIRE-3000 continuous-wave NIRS system. Principle components analysis was performed to differentiate between global and localized hypoperfusion or ischemic territories of the middle and anterior cerebral arteries. In one patient, we detected a critical hypoperfusion of the right MCA, which was not apparent in the frontal channels but was accompanied by intra- and postoperative neurological correlates of ischemia. We conclude that spatially extended NIRS of temporal and parietal vascular territories could improve the detection of critically low cerebral perfusion. Even in severe hemispheric stroke, NIRS of the frontal lobe may remain normal because the anterior cerebral artery can be supplied by the contralateral side directly or via the anterior communicating artery.
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Affiliation(s)
- Christian Rummel
- University of Bern, Support Center for Advanced Neuroimaging, University Institute for Diagnostic an, Switzerland
| | - Reto Basciani
- University of Bern, Department of Anesthesiology and Pain Therapy, Inselspital, Bern, Switzerland
| | - Arto Nirkko
- University of Bern, Department of Neurology, Schlaf-Wach-Epilepsie-Zentrum, Inselspital, Bern, Switzerland
| | - Gerhard Schroth
- University of Bern, Support Center for Advanced Neuroimaging, University Institute for Diagnostic an, Switzerland
| | - Monika Stucki
- University of Bern, Department of Anesthesiology and Pain Therapy, Inselspital, Bern, Switzerland
| | - David Reineke
- University of Bern, Department of Cardiovascular Surgery, Inselspital, Bern, Switzerland
| | - Balthasar Eberle
- University of Bern, Department of Anesthesiology and Pain Therapy, Inselspital, Bern, Switzerland
| | - Heiko A Kaiser
- University of Bern, Department of Anesthesiology and Pain Therapy, Inselspital, Bern, Switzerland
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Bell J, Yamamoto Y, Jenni H, Mclean L, Chiarella G, El-Essawi A, Glendza D, Antonitsis P, Boer C, Durandy Y, Erdoes G, Murkin J, Starinieri P, Starinieri P, Spriel A, Bauer A, McLean L, Medlam W, Bennett R, Bennett R, Turner E, Wallhead A, Winkler B, Erdös G, Eberle B, Carrel T, Medlam W, Bell J, Bennett R, Bennett R, Wallhead A, Turner E, Benvenuto D, Ciano M, Losito G, Mazzei V, Breitenbach I, Haupt B, Morjan M, Brower R, Harringer W, Dedieu F, Crispin V, Aunac S, Guennaoui T, Van Ruyssevelt P, Kostarellou G, Argiriadou H, Kleontas A, Deliopoulos A, Grosomanidis V, Anastasiadis K, Stolze A, Vonk A, Burtman D, Basciani R, Kröninger F, Gygax E, Jenni H, Reineke D, Stucki M, Hagenbuch N, Carrel T, Eberle B, Turkstra T, Mayer R, Robic B, Wen W, Yilmaz A, Robic B, Wen W, Yilmaz A, Nguyen-Vu M, Serrick C, Hausmann H, Eberle T, Troitzsch D, Johansen P, Nygaard H, Hasenkam J. 2nd International Symposium on Minimal Invasive Extracorporeal Technologies Athens, Greece, 9-11 June 2016001SAFETY IN THE EVOLVING MINIATURIZED EXTRACORPOREAL SYSTEM002THE CHALLENGE OF CLOSED CIRCUIT SYSTEM FOR ALL CARDIOPULMONARY BYPASS CASES003THE USE OF A MINIMAL INVASIVE EXTRACORPOREAL CIRCUIT FOR REWARMING PATIENTS FROM ACCIDENTAL HYPOTHERMIA: A PROSPECTIVE STUDY004WHAT ARE THE LIMITATIONS OF MINIATURIZED ADULT CARDIOPULMONARY BYPASS? OUR FINDINGS005AORTIC VALVE SURGERY AND CORONARY BYPASS SURGERY IN DIALYZED PATIENTS. MAY MINIMAL EXTRACORPOREAL CIRCULATION BE HELPFUL IN GETTING BETTER RESULTS?006IMPACT OF MINIMAL EXTRACORPOREAL CIRCULATION IN OCTOGENARIANS UNDERGOING CORONARY ARTERY BYPASS GRAFTING. HAVE WE BEEN LOOKING IN THE WRONG DIRECTION?007CORONARY ARTERY BYPASS GRAFTING ON BEATING HEART, ON CARDIOPULMONARY BYPASS OR ON MINIMAL EXTRACORPOREAL CIRCULATION008MINIMAL INVASIVE EXTRACORPOREAL CIRCULATION IMPROVES QUALITY OF LIFE AFTER CORONARY ARTERY BYPASS GRAFTING009MINIMAL INVASIVE DETERMINATIONS OF OXYGEN DELIVERY (DO 2) AND CONSUMPTION (VO 2) IN CARDIAC SURGERY010CONTINUOUS MONITORING OF PERFUSION INDEX AND PULSE OXIMETRY DURING WARM PULSATILE PERFUSION IN PAEDIATRICS011CEREBRAL MICROEMBOLIZATION IN PATIENTS UNDERGOING SURGICAL AORTIC VALVE REPLACEMENT ON MINIMAL INVASIVE OR CONVENTIONAL EXTRACORPOREAL CIRCULATION012ASSESSMENT OF AUTOMATED SOMATOSENSORY EVOKED POTENTIALS FOR DETECTION OF INTRAOPERATIVE POSITIONAL NEUROPRAXIA IN CARDIAC SURGERY013MINIMAL INVASIVE EXTRACORPOREAL CIRCULATION IN MINIMALLY INVASIVE AORTIC VALVE SURGERY014MINIMAL INVASIVE EXTRACORPOREAL CIRCULATION IN ENDOSCOPIC MITRAL VALVE SURGERY015AIR HANDLING CAPABILITY OF A CONVENTIONAL CARDIOPULMONARY BYPASS VERSUS MINIMIZED EXTRACORPOREAL CIRCUIT USING THE FUSION OXYGENATOR016DOES MINIMALLY INVASIVE EXTRACORPOREAL CIRCULATION AND CELL SALVAGE REDUCE INFLAMMATION AFTER CORONARY ARTERY BYPASS GRAFTING SURGERY? Interact Cardiovasc Thorac Surg 2016. [DOI: 10.1093/icvts/ivw269] [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: 11/14/2022] Open
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Basciani R, Kröninger F, Gygax E, Jenni H, Reineke D, Stucki M, Hagenbuch N, Carrel T, Eberle B, Erdoes G. Cerebral Microembolization During Aortic Valve Replacement Using Minimally Invasive or Conventional Extracorporeal Circulation: A Randomized Trial. Artif Organs 2016; 40:E280-E291. [DOI: 10.1111/aor.12744] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 02/22/2016] [Accepted: 02/23/2016] [Indexed: 11/30/2022]
Affiliation(s)
- Reto Basciani
- Department of Anesthesiology and Pain Therapy; Inselspital, Bern University Hospital, University of Bern; Bern Switzerland
| | - Felix Kröninger
- Department of Anesthesiology and Pain Therapy; Inselspital, Bern University Hospital, University of Bern; Bern Switzerland
| | - Erich Gygax
- Department of Cardiovascular Surgery; Swiss Cardiovascular Center, Inselspital, Bern University Hospital, University of Bern; Bern
| | - Hansjörg Jenni
- Department of Cardiovascular Surgery; Swiss Cardiovascular Center, Inselspital, Bern University Hospital, University of Bern; Bern
| | - David Reineke
- Department of Cardiovascular Surgery; Swiss Cardiovascular Center, Inselspital, Bern University Hospital, University of Bern; Bern
| | - Monika Stucki
- Department of Anesthesiology and Pain Therapy; Inselspital, Bern University Hospital, University of Bern; Bern Switzerland
| | | | - Thierry Carrel
- Department of Cardiovascular Surgery; Swiss Cardiovascular Center, Inselspital, Bern University Hospital, University of Bern; Bern
| | - Balthasar Eberle
- Department of Anesthesiology and Pain Therapy; Inselspital, Bern University Hospital, University of Bern; Bern Switzerland
| | - Gabor Erdoes
- Department of Anesthesiology and Pain Therapy; Inselspital, Bern University Hospital, University of Bern; Bern Switzerland
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Erdoes G, Basciani R, Gygax E, Reineke D, Carrel T, Eberle B. Cerebral microembolic load in open heart surgery with different extracorporeal circulation systems. J Cardiothorac Vasc Anesth 2016. [DOI: 10.1053/j.jvca.2016.03.114] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Basciani R, Rindlisbacher A, Begert E, Brander L, Jakob S, Etter R, Carrel T, Eberle B. Anaesthetic induction with etomidate in cardiac surgery: a randomized controlled trial. J Cardiothorac Vasc Anesth 2016. [DOI: 10.1053/j.jvca.2016.05.025] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Basciani R. Cerebral oxygen saturation in thoracic aortic surgery: a single centre prospective observational study in 215 patients. J Cardiothorac Vasc Anesth 2015. [DOI: 10.1053/j.jvca.2015.05.176] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Jenni H, Basciani R, Eberle B, Gygax E, Erdos G, Czerny M, Carrel T. 002 * SELECTIVE ANTEGRADE CEREBRAL PERFUSION WITH DIFFERENT BLOOD FLOW RATES: ARE THERE DIFFERENCES IN CEREBRAL TISSUE OXYGENATION AND MEAN CEREBRAL BLOOD FLOW VELOCITY? Interact Cardiovasc Thorac Surg 2013. [DOI: 10.1093/icvts/ivt372.2] [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: 11/13/2022] Open
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Czerny M, Mach M, Schönhoff F, Basciani R, Jenni H, Carrel TP, Schmidli J. Double arterial perfusion strategy for extensive thoracic aortic surgery to avoid lower body hypothermic circulatory arrest. Eur J Cardiothorac Surg 2013; 45:460-5. [PMID: 24031045 DOI: 10.1093/ejcts/ezt449] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE To analyse our results of using a double arterial perfusion strategy to avoid lower body hypothermic circulatory arrest after extensive thoracic aortic surgery. METHODS We analysed the intra- and perioperative courses of 10 patients (median age 58 years, median logistic EuroSCORE 14.6) who underwent extensive thoracic aortic surgery with a double arterial perfusion strategy. The main goal of double arterial perfusion is to separate myocardial and supra-aortic from systemic perfusion. Aortic repair starts at the most distal level of the descending aorta, followed by reinsertion of the supra-aortic vessels, and ends with completion of the proximal anastomosis or by any kind of root repair as needed. RESULTS Seven of 10 patients had prior surgery of the thoracic aorta. Indications for surgery were post-dissection aneurysm in 4 patients, true aneurysm in 3, anastomotic aneurysms in 2 and Type B aortic dissection with pseudo-coarctation in 1. Surgical access was performed through median sternotomy with left hemi-clamshell extension in all cases. There was no in-hospital mortality, but perioperative neurological symptoms occurred in 2 patients. These 2 patients developed delayed stroke (after awaking) after an initial uneventful clinical course, and in 1 of them, neurological symptoms resolved completely during follow-up. The median follow-up was 7 (± 13) months. There was no death and no need for additional redo surgery during this observational period. CONCLUSIONS Extensive surgery of the thoracic aorta using a double arterial perfusion technique in order to avoid lower body hypothermic circulatory arrest is an attractive option. Further refinements of this technique may enable the safe and effective simultaneous multisegmental treatment of thoracic aortic pathology in patients who would otherwise have to undergo a two-step surgical approach.
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Affiliation(s)
- Martin Czerny
- Department of Cardiovascular Surgery, University Hospital Berne, Berne, Switzerland
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Czerny M, König T, Reineke D, Sodeck GH, Rieger M, Schoenhoff F, Basciani R, Jenni H, Schmidli J, Carrel TP. Total surgical aortic arch replacement as a safe strategy to treat complex multisegmental proximal thoracic aortic pathology. Interact Cardiovasc Thorac Surg 2013; 17:532-6. [PMID: 23788196 DOI: 10.1093/icvts/ivt260] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [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: 11/14/2022] Open
Abstract
OBJECTIVE To analyse the results after elective open total aortic arch replacement. METHODS We analysed 39 patients (median age 63 years, median logistic EuroSCORE 18.4) who underwent elective open total arch replacement between 2005 and 2012. RESULTS In-hospital mortality was 5.1% (n = 2) and perioperative neurological injury was 12.8% (n = 5). The indication for surgery was degenerative aneurysmal disease in 59% (n = 23) and late aneurysmal formation following previous surgery of type A aortic dissection in 35.9% (n = 14); 5.1% (n = 2) were due to anastomotical aneurysms after prior ascending repair. Fifty-nine percent (n = 23) of the patients had already undergone previous proximal thoracic aortic surgery. In 30.8% (n = 12) of them, a conventional elephant trunk was added to total arch replacement, in 28.2% (n = 11), root replacement was additionally performed. Median hypothermic circulatory arrest time was 42 min (21-54 min). Selective antegrade cerebral perfusion was used in 95% (n = 37) of patients. Median follow-up was 11 months [interquartile range (IQR) 1-20 months]. There was no late death and no need for reoperation during this period. CONCLUSIONS Open total aortic arch replacement shows very satisfying results. The number of patients undergoing total arch replacement as a redo procedure and as a part of a complex multisegmental aortic pathology is high. Future strategies will have to emphasize neurological protection in extensive simultaneous replacement of the aortic arch and adjacent segments.
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Affiliation(s)
- Martin Czerny
- Department of Cardiovascular Surgery, University Hospital Berne, Berne, Switzerland.
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Boehme S, Duenges B, Klein KU, Hartwich V, Mayr B, Consiglio J, Baumgardner JE, Markstaller K, Basciani R, Vogt A. Multi frequency phase fluorimetry (MFPF) for oxygen partial pressure measurement: ex vivo validation by polarographic clark-type electrode. PLoS One 2013; 8:e60591. [PMID: 23565259 PMCID: PMC3614895 DOI: 10.1371/journal.pone.0060591] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Accepted: 02/28/2013] [Indexed: 11/27/2022] Open
Abstract
Background Measurement of partial pressure of oxygen (PO2) at high temporal resolution remains a technological challenge. This study introduces a novel PO2 sensing technology based on Multi-Frequency Phase Fluorimetry (MFPF). The aim was to validate MFPF against polarographic Clark-type electrode (CTE) PO2 measurements. Methodology/Principal Findings MFPF technology was first investigated in N = 8 anaesthetised pigs at FIO2 of 0.21, 0.4, 0.6, 0.8 and 1.0. At each FIO2 level, blood samples were withdrawn and PO2 was measured in vitro with MFPF using two FOXY-AL300 probes immediately followed by CTE measurement. Secondly, MFPF-PO2 readings were compared to CTE in an artificial circulatory setup (human packed red blood cells, haematocrit of 30%). The impacts of temperature (20, 30, 40°C) and blood flow (0.8, 1.6, 2.4, 3.2, 4.0 L min−1) on MFPF-PO2 measurements were assessed. MFPF response time in the gas- and blood-phase was determined. Porcine MFPF-PO2 ranged from 63 to 749 mmHg; the corresponding CTE samples from 43 to 712 mmHg. Linear regression: CTE = 15.59+1.18*MFPF (R2 = 0.93; P<0.0001). Bland Altman analysis: meandiff 69.2 mmHg, rangediff -50.1/215.6 mmHg, 1.96-SD limits -56.3/194.8 mmHg. In artificial circulatory setup, MFPF-PO2 ranged from 20 to 567 mmHg and CTE samples from 11 to 575 mmHg. Linear regression: CTE = −8.73+1.05*MFPF (R2 = 0.99; P<0.0001). Bland-Altman analysis: meandiff 6.6 mmHg, rangediff -9.7/20.5 mmHg, 1.96-SD limits -12.7/25.8 mmHg. Differences between MFPF and CTE-PO2 due to variations of temperature were less than 6 mmHg (range 0–140 mmHg) and less than 35 mmHg (range 140–750 mmHg); differences due to variations in blood flow were less than 15 mmHg (all P-values>0.05). MFPF response-time (monoexponential) was 1.48±0.26 s for the gas-phase and 1.51±0.20 s for the blood-phase. Conclusions/Significance MFPF-derived PO2 readings were reproducible and showed excellent correlation and good agreement with Clark-type electrode-based PO2 measurements. There was no relevant impact of temperature and blood flow upon MFPF-PO2 measurements. The response time of the MFPF FOXY-AL300 probe was adequate for real-time sensing in the blood phase.
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Affiliation(s)
- Stefan Boehme
- Department of Anaesthesia, General Intensive Care and Pain Management, Medical University of Vienna, Vienna, Austria.
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Theiler L, Fischer H, Voelke N, Basciani R, Hasty F, Greif R. Survey on controversies in airway management among anesthesiologists in the UK, Austria and Switzerland. Minerva Anestesiol 2012; 78:1088-1094. [PMID: 23059512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
BACKGROUND While surveys about anesthesia practice appear regularly in the anesthesia literature, they are usually bound to one country. We compared the approach to specific airway management issues among anesthesiologists from three different European countries. METHODS A questionnaire was distributed during the main session of three anesthesia meetings in Austria (A), the UK, and Switzerland (CH). Questions concerned whether anesthesiologists routinely check for risk factors associated with difficult mask ventilation; whether anesthesiologists are used to mask ventilate prior to administering neuromuscular blocking drugs (NMBD); whether anesthesiologists apply cricoid pressure. RESULTS We evaluated 266 questionnaires. No significant differences in the frequency of checking predictors were found, except for "age" (UK: 28%, A: 13%, CH:11%, P=0.01). Fewer anesthesiologists from the UK always check mask ventilation before NMBD (UK: 34%, A: 72%, CH: 67%, P<0.001); but they check mask ventilation more often when risk factors are present (UK: 36%, A: 13%, CH: 20%, P=0.004). Very few anesthesiologists from the UK never apply cricoid pressure (UK: 2%, A: 40%, CH: 49%, P<0.001), but almost all of them apply it in case of rapid sequence intubation (UK: 96%, A: 52%, CH:30%, P<0.001). CONCLUSION Answers from anesthesiologists in the UK differed significantly from those in A and CH. Anesthesiologists in the UK check mask ventilation after induction less frequently, but they check more often when risk factors of difficult mask ventilation are present. Cricoid pressure seems to remain an important part of the rapid sequence induction technique in the UK, whereas anesthesiologists in Austria and Switzerland rely less on this technique.
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Affiliation(s)
- L Theiler
- Department of Anesthesiology, Perioperative Medicine and Pain Management, University of Miami Miller School of Medicine, FL, USA.
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Aymard T, Kadner A, Widmer A, Basciani R, Tevaearai H, Weber A, Schmidli J, Carrel T. Massive pulmonary embolism: surgical embolectomy versus thrombolytic therapy--should surgical indications be revisited? Eur J Cardiothorac Surg 2012. [PMID: 22466693 DOI: 10.1093/ejcts/ezs123.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVES The treatment of massive pulmonary embolism (PE) is a matter of debate. We present our institutional experience of patients suffering from massive PE with the aim of comparing the early results, the outcome and quality of life (QoL) between patients primarily assigned to either pulmonary surgical embolectomy (SE) or thrombolytic therapy (TL). A subgroup of patients (TS) with failed responses to TL requiring SE was separately analysed. METHODS All consecutive patients (January 2001-December 2007) with computed tomography (CT)-scan-confirmed massive bilateral central or paracentral PE were reviewed. All clinical data were retrieved from our patients' registry and completed by the evaluation of the CT-scan-derived right ventricle/left ventricle ratio (RV/LV ratio). Follow-up focused on clinical outcome and QoL was obtained. RESULTS Eighty patients were analysed including 28 SE (35%) and 52 TL (65%), of whom 11 (21%) required TS. Demographics and preoperative characteristics were similar between SE and TL. Analysis of the RV/LV ratio revealed a ratio of 1.66 for SE and 1.44 for TL. The early mortality rate was not significantly different between the two groups (SE: 3.6% versus TL: 13.5%), whereas early mortality was 27% in those patients treated initially with thrombolysis and subsequently requiring SE (TS-group). Severe bleeding complications were lower in the SE-group (3.6% versus 26.5% P = 0.013). Intracerebral bleeding rates and neurological events were not statistically different. After a mean follow-up of 63 ± 21 months, the mortality rate was 17.9% in the SE-group and 23.1% in the TL-group. CONCLUSIONS SE is an excellent treatment option in massive PE with comparable early mortality rates and significantly less bleeding complications than TL. Patients having surgery after inefficient thrombolysis have the worst early outcome. The RV/LV CT-scan ratio might serve as a predictor to differentiate patients, who could profit from direct surgical intervention than thrombolytic treatment attempts. Further studies are required to confirm these results.
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Affiliation(s)
- Thierry Aymard
- Department of Cardiovascular Surgery, Berne University Hospital, University of Berne, Berne, Switzerland
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15
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Aymard T, Kadner A, Widmer A, Basciani R, Tevaearai H, Weber A, Schmidli J, Carrel T. Massive pulmonary embolism: surgical embolectomy versus thrombolytic therapy--should surgical indications be revisited? Eur J Cardiothorac Surg 2012; 43:90-4; discussion 94. [PMID: 22466693 DOI: 10.1093/ejcts/ezs123] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES The treatment of massive pulmonary embolism (PE) is a matter of debate. We present our institutional experience of patients suffering from massive PE with the aim of comparing the early results, the outcome and quality of life (QoL) between patients primarily assigned to either pulmonary surgical embolectomy (SE) or thrombolytic therapy (TL). A subgroup of patients (TS) with failed responses to TL requiring SE was separately analysed. METHODS All consecutive patients (January 2001-December 2007) with computed tomography (CT)-scan-confirmed massive bilateral central or paracentral PE were reviewed. All clinical data were retrieved from our patients' registry and completed by the evaluation of the CT-scan-derived right ventricle/left ventricle ratio (RV/LV ratio). Follow-up focused on clinical outcome and QoL was obtained. RESULTS Eighty patients were analysed including 28 SE (35%) and 52 TL (65%), of whom 11 (21%) required TS. Demographics and preoperative characteristics were similar between SE and TL. Analysis of the RV/LV ratio revealed a ratio of 1.66 for SE and 1.44 for TL. The early mortality rate was not significantly different between the two groups (SE: 3.6% versus TL: 13.5%), whereas early mortality was 27% in those patients treated initially with thrombolysis and subsequently requiring SE (TS-group). Severe bleeding complications were lower in the SE-group (3.6% versus 26.5% P = 0.013). Intracerebral bleeding rates and neurological events were not statistically different. After a mean follow-up of 63 ± 21 months, the mortality rate was 17.9% in the SE-group and 23.1% in the TL-group. CONCLUSIONS SE is an excellent treatment option in massive PE with comparable early mortality rates and significantly less bleeding complications than TL. Patients having surgery after inefficient thrombolysis have the worst early outcome. The RV/LV CT-scan ratio might serve as a predictor to differentiate patients, who could profit from direct surgical intervention than thrombolytic treatment attempts. Further studies are required to confirm these results.
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Affiliation(s)
- Thierry Aymard
- Department of Cardiovascular Surgery, Berne University Hospital, University of Berne, Berne, Switzerland
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Erdoes G, Basciani R, Huber C, Stortecky S, Wenaweser P, Windecker S, Carrel T, Eberle B. Transcranial Doppler-detected cerebral embolic load during transcatheter aortic valve implantation. Eur J Cardiothorac Surg 2011; 41:778-83; discussion 783-4. [DOI: 10.1093/ejcts/ezr068] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Koeferli U, Erdoes G, Basciani R, Wenaweser P, Eberle B, Trachsel S. P-65 Sedation conditions with propofol and sub-hypnotic doses of ketamine for transcatheter aortic valve implantation. J Cardiothorac Vasc Anesth 2011. [DOI: 10.1053/j.jvca.2011.03.158] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Erdoes G, Basciani R, Huber C, Trachsel S, Wenaweser P, Windecker S, Carrel T, Eberle B. P-62 Cerebral embolic load during transcatheter aortic valve implantation. J Cardiothorac Vasc Anesth 2011. [DOI: 10.1053/j.jvca.2011.03.155] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Erdoes G, Wenaweser P, Kadner A, Basciani R, Carrel T, Eberle B. Ventricular Prosthesis Embolization during Transapical Aortic Valve Implantation: The Role of Transesophageal Echocardiography in Diagnosis and Management. J Am Soc Echocardiogr 2011; 24:227.e1-4. [DOI: 10.1016/j.echo.2010.06.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2010] [Indexed: 11/27/2022]
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Erdoes G, Stalder M, Basciani R, Gugger M, Carrel T, Eberle B. An uncommon cause of coronary artery ostial obstruction: papillary fibroelastoma. Echocardiography 2010; 27:337-40. [PMID: 20486964 DOI: 10.1111/j.1540-8175.2009.01087.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Cardiac papillary fibroelastoma is a benign tumor that mainly affects cardiac valves. The tumor has the potential to cause angina and myocardial infarction due to embolization of tumor fragments. We describe a rare case of right coronary artery ostial obstruction by a 12 x 19 mm sized papillary fibroelastoma located in the sinus of Valsalva. The report underlies the importance of echocardiography in diagnosis and intraoperative treatment of this type of cardiac mass.
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Affiliation(s)
- Gabor Erdoes
- Department of Anesthesiology and Pain Therapy, University Hospital Bern, CH-3010 Bern, Switzerland.
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22
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Erdoes G, Demertzis S, Basciani R, Szuecs-Farkas Z, Carrel T, Eberle B. The potentially beneficial role of an aortic arch anatomical variant. Can J Anaesth 2010; 57:952-4. [PMID: 20645038 DOI: 10.1007/s12630-010-9363-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2010] [Accepted: 07/07/2010] [Indexed: 11/24/2022] Open
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23
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Erdoes G, Basciani R. Evaluation of the internal jugular vein with transesophageal echocardiography as a surface probe: a real alternative to current practice? J Cardiothorac Vasc Anesth 2010; 25:574-5. [PMID: 20620080 DOI: 10.1053/j.jvca.2010.04.009] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2010] [Indexed: 11/11/2022]
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24
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Erdoes G, Reineke D, Basciani R, Carrel T, Eberle B. Left atrial myxoma attached to the anterior mitral leaflet with symptoms suggestive of infective endocarditis. Eur Heart J Cardiovasc Imaging 2009; 11:E8. [PMID: 19959532 DOI: 10.1093/ejechocard/jep192] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The case of a 55-year-old woman is presented, whose clinical signs were initially suggestive of infective endocarditis. Transthoracic echocardiography (TTE) provided the diagnosis of a large left atrial myxoma attached to the anterior mitral leaflet. Perioperative transesophageal echocardiography (TEE) confirmed preoperative findings and assisted the surgical team in the assessment of tumour size, area of attachment, and mobility. Following tumour resection, TEE demonstrated residual moderate mitral valve regurgitation, which resulted in a change of surgical strategy. This report reinforces the importance of intraoperative TEE to facilitate and optimize surgical and anaesthesiological management of patients presenting with non-specific cardiorespiratory symptoms.
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Affiliation(s)
- Gabor Erdoes
- Department of Anesthesiology and Pain Therapy, University Hospital Bern, Freiburgstrasse, Bern CH-3010, Switzerland.
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Michel P, Arnold M, Hungerbühler HJ, Müller F, Staedler C, Baumgartner RW, Georgiadis D, Lyrer P, Mattle HP, Sztajzel R, Weder B, Tettenborn B, Nedeltchev K, Engelter S, Weber SA, Basciani R, Fandino J, Fluri F, Stocker R, Keller E, Wasner M, Hänggi M, Gasche Y, Paganoni R, Regli L. Decompressive craniectomy for space occupying hemispheric and cerebellar ischemic strokes: Swiss recommendations. Int J Stroke 2009; 4:218-23. [PMID: 19659825 DOI: 10.1111/j.1747-4949.2009.00283.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- P Michel
- Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland.
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Erdoes G, Basciani R. Assessment of neurocognitive function and neuroprotective strategies in cardiac surgery. J Cardiothorac Vasc Anesth 2009; 24:536-7. [PMID: 19716713 DOI: 10.1053/j.jvca.2009.06.019] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2009] [Indexed: 11/11/2022]
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Hommann M, Schotte U, Richter KK, Möller U, Basciani R, Scheele J. [HELLP Syndrome as an indication for liver transplantation]. Gynakol Geburtshilfliche Rundsch 2001; 41:8-11. [PMID: 11423731 DOI: 10.1159/000049455] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Liver rupture followed by multiorgan failure is perhaps the most catastrophic complication of the HELLP syndrome (hemolysis, elevated liver function, low platelets). Specific treatment options are currently limited and not routinely clarified. Here, we present a patient successfully managed by an innovative surgical approach consisting of combined total hepatectomy, portacaval shunt, and liver transplantation. A 26-year-old primipara (39th week of gestation) who suffered liver rupture as a complication of HELLP syndrome after delivery underwent a portacaval shunt after total hepatectomy. This combination was sufficient until the patient underwent orthotopic liver transplantation. The patient was discharged from the hospital after a dramatic recovery. Bridging portacaval shunt and consecutive orthotopic liver transplantation represented an effective therapy for this patient and should be considered early as a treatment option in patients with liver rupture complicating severe HELLP syndrome.
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Affiliation(s)
- M Hommann
- Klinik für Allgemeine und Viszerale Chirurgie, Friedrich-Schiller-Universität, Jena, Deutschland.
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Alessandri B, Basciani R, Langemann H, Lyrer P, Pluess D, Landolt H, Gratz O. Chronic effects of an aminosteroid on microdialytically measured parameters after experimental middle cerebral artery occlusion in the rat. J Clin Neurosci 2000; 7:47-51. [PMID: 10847651 DOI: 10.1054/jocn.1998.0139] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The effects of the neuroprotective aminosteroid U74006F (tirilazad mesylate, Freedox) were monitored microdialytically in rat cortex during three 4h periods beginning immediately, 25h and 49h after permanent middle cerebral artery occlusion. Either U74006F or vehicle only was administered 15 min, 2h, 6h, 12h and 24h after operation. The dialysate was analysed for on-line pH, ascorbic acid, uric acid, glucose and lactate. The efficacy of post-ischaemic treatment was shown by: a) lesion volume 53h after operation was significantly smaller in U74006F-treated animals; b) microdialytic findings were very similar to those found previously with pre-ischaemic drug application (reduction in release of ascorbic acid, uric acid and lactate, increased pH); c) an effect of U74006F on lactate release could still be seen on days 2 and 3; and d) increases in uric acid on days 2 and 3, possibly reflecting delayed cell death, were smaller in aminosteroid treated animals.
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Affiliation(s)
- B Alessandri
- Department of Research, Cantonal Hospital, Basel, Switzerland.
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Alessandri B, Langemann H, Lutz TW, Basciani R, Fuhrer B, Lyrer P, Landolt H, Gratzl O. Acute effects of an aminosteroid on microdialytically measured parameters after experimental middle cerebral artery occlusion in the rat. J Clin Neurosci 1999. [DOI: 10.1016/s0967-5868(99)90058-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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