1
|
Bhirowo YP, Raksawardana YK, Setianto BY, Sudadi S, Tandean TN, Zaharo AF, Ramsi IF, Kusumawardani HT, Triyono T. Hemolysis and cardiopulmonary bypass: meta-analysis and systematic review of contributing factors. J Cardiothorac Surg 2023; 18:291. [PMID: 37833747 PMCID: PMC10571250 DOI: 10.1186/s13019-023-02406-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 09/30/2023] [Indexed: 10/15/2023] Open
Abstract
BACKGROUND The use of cardiopulmonary bypass (CPB) is almost inevitable in cardiac surgery. However, it can cause complications, including hemolysis. Until now, there have not been any standards for reducing hemolysis from CPB. Therefore, this systematic review was conducted to determine the factors that increase or reduce hemolysis in the use of CPB. METHODS Keywords Earches (cardiac surgery AND cardiopulmonary bypass AND hemolysis) were done on PubMed databases and Cochrane CENTRAL from 1990-2021 for published randomized controlled trials (RCTs) that studied interventions on CPB, in cardiac surgery patients, and measured hemolysis as one of the outcomes. Studies involving patients with preoperative hematological disorders, prosthetic valves, preoperative use of intra-aortic balloon pumps and extracorporeal circulation, emergency and minimally invasive surgery are excluded RESULTS: The search yielded 64 studies that met the inclusion criteria, which involved a total of 3,434 patients. The most common surgery was coronary revascularization (75%). Out of 64 studies, 33 divided into 7 analyses. Remaining 31 studies were synthesized qualitatively. Significant decreases were found in centrifugal vs roller pumps for PFHb (p = 0.0006) and Hp (p < 0.0001) outcomes, separated vs combined suctioned blood (p = 0.003), CPB alternatives vs conventional CPB (p < 0.0001), and mini extracorporeal circulation (MiniECC) vs conventional CPB for LDH (p = 0.0008). Significant increases were found in pulsatility (p = 0.03) and vacuum-assisted venous drainage (VAVD) vs gravity-assisted venous drainage (GAVD) (p = 0.002). CONCLUSION The review shows that hemolysis could be caused by several factors and efforts have been made to reduce it, combining significant efforts could be beneficial. However, this review has limitations, such as heterogeneity due to no standards available for conducting CPB. Therefore, further research with standardized guidelines for CPB is needed to yield more comparable studies. Meta-analyses with more specific parameters should be done to minimize heterogeneity.
Collapse
Affiliation(s)
- Yudo P Bhirowo
- Department of Anesthesiology and Intensive Care, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Dr. Sardjito General Hospital, Jl. Kesehatan No. 1, Sendowo, Sekip Utara, Depok District, Sleman Regency, Yogyakarta, 55281, Indonesia.
| | - Yusuf K Raksawardana
- Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Budi Y Setianto
- Department of Cardiology, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Dr. Sardjito General Hospital, Yogyakarta, Indonesia
| | - Sudadi Sudadi
- Department of Anesthesiology and Intensive Care, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Dr. Sardjito General Hospital, Jl. Kesehatan No. 1, Sendowo, Sekip Utara, Depok District, Sleman Regency, Yogyakarta, 55281, Indonesia
| | - Tommy N Tandean
- Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Alfia F Zaharo
- Department of Ophthalmology, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Dr. Sardjito General Hospital, Yogyakarta, Indonesia
| | - Irhash F Ramsi
- Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Hening T Kusumawardani
- Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Teguh Triyono
- Department of Clinical Pathology and Laboratory Medicine, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Dr. Sardjito General Hospital, Yogyakarta, Indonesia
| |
Collapse
|
2
|
Masyuk M, Abel P, Hug M, Wernly B, Haneya A, Sack S, Sideris K, Langwieser N, Graf T, Fuernau G, Franz M, Westenfeld R, Kelm M, Felix SB, Jung C. Extracorporeal life support system during cardiovascular procedures: Insights from the German Lifebridge registry. Artif Organs 2020; 44:1259-1266. [PMID: 32592601 DOI: 10.1111/aor.13760] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 06/13/2020] [Accepted: 06/17/2020] [Indexed: 12/13/2022]
Abstract
The frequency of mechanical circulatory support (MCS) device application has increased in recent years. Besides implantation in the emergency setting, such as circulatory arrest, MCS is also increasingly used electively to ensure hemodynamic stability in high-risk patients, for example, during percutaneous coronary interventions (PCI), valve interventions or off-pump coronary bypass surgery. Lifebridge (Zoll Medical GmbH, Germany) is a compact percutaneous MCS device widely used in daily clinical routine. The present study aimed to investigate the indications, feasibility, and outcomes after use of Lifebridge in cardiac interventions, evaluating a large-scale multicenter database. A total of 60 tertiary cardiovascular centers were questioned regarding application and short-term outcomes after the use of the Lifebridge system (n = 160 patients). Out of these 60 centers, eight consented to participate in the study (n = 39 patients), where detailed data were collected using standardized questionnaires. Demographic and clinical characteristics of the patient population, procedural as well as follow-up data were recorded and analyzed. In 60 interrogated centers, Lifebridge was used in 74% of emergency cases and 26% in the setting of planned interventions. The subcohort interrogated in detail displayed the same distribution of application scenarios, while the main cardiovascular procedure was high-risk PCI (82%). All patients were successfully weaned from the device and 92% (n = 36) of the patients studied in detail survived after 30 days. As assessed 30 days after insertion of the device, bleeding requiring red blood cell (RBC) transfusion constituted the main complication, occurring in 49% of cases. In our analysis of clinical data, the use of Lifebridge in cardiac intervention was shown to be feasible. Further prospective studies are warranted to identify patients who benefit from hemodynamic MCS support despite the increased rate of RBC transfusion due to challenges in access sites during cardiovascular procedures.
Collapse
Affiliation(s)
- Maryna Masyuk
- Department of Medicine, Division of Cardiology, Pulmonary Diseases and Vascular Medicine, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Peter Abel
- Department of Internal Medicine B, Division of Cardiology, Pneumology and Critical Care Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Martin Hug
- Department of Cardiology, Pulmonology and Internal Intensive Care Medicine, Städtisches Klinikum München GmbH, Klinikum Neuperlach, Munich, Germany
| | - Bernhard Wernly
- Department of Cardiology, Paracelsus Medical University, Salzburg, Austria
| | - Assad Haneya
- Department of Cardiovascular Surgery, University of Schleswig-Holstein Campus Kiel, Kiel, Germany
| | - Stefan Sack
- Department of Cardiology, Pneumology, and Internal Intensive Care Medicine, Schwabing Hospital, Academic Municipal Hospital Munich, Munich, Germany
| | - Konstantinos Sideris
- Department of Cardiovascular Surgery, German Heart Center, Technische Universität München (TUM), Munich, Germany
| | - Nicolas Langwieser
- Medical Clinic I, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Tobias Graf
- Department of Cardiology, Angiology, Intensive Care Medicine, University Heart Center Lübeck, Medical Clinic II, Lübeck, Germany
| | - Georg Fuernau
- Department of Cardiology, Angiology, Intensive Care Medicine, University Heart Center Lübeck, Medical Clinic II, Lübeck, Germany
| | - Marcus Franz
- Department of Internal Medicine I, University Hospital Jena, Friedrich Schiller University Jena, Jena, Germany
| | - Ralf Westenfeld
- Department of Medicine, Division of Cardiology, Pulmonary Diseases and Vascular Medicine, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Malte Kelm
- Department of Medicine, Division of Cardiology, Pulmonary Diseases and Vascular Medicine, University Hospital Düsseldorf, Düsseldorf, Germany.,CARID: Cardiovascular Research Institute Düsseldorf, Düsseldorf, Germany
| | - Stephan B Felix
- Department of Internal Medicine B, Division of Cardiology, Pneumology and Critical Care Medicine, University Medicine Greifswald, Greifswald, Germany.,DZHK (German Center for Cardiovascular Research), Partner Site Greifswald, Greifswald, Germany
| | - Christian Jung
- Department of Medicine, Division of Cardiology, Pulmonary Diseases and Vascular Medicine, University Hospital Düsseldorf, Düsseldorf, Germany
| |
Collapse
|
3
|
Bierbach B, Bomberg H, Pritzer H, Prabhu S, Petzina R, Kempski O, Horstick G, Cremer J, Hoffmann G. Off-pump coronary artery bypass prevents visceral organ damage. Interact Cardiovasc Thorac Surg 2014; 18:717-26. [PMID: 24626936 DOI: 10.1093/icvts/ivu063] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES Visceral malperfusion after coronary artery bypass grafting (CABG) results in high morbidity and mortality. This study was designed to evaluate the effect of CABG performed by surgical techniques on visceral perfusion and function. METHODS Pigs (n = 28) were studied in four groups: I. Sham; II. Off-pump coronary artery bypass grafting (OPCAB): 1 h stabilizer with 40 min intracoronary shunt; III. Extracorporeal circulation (ECC): 1 h ECC with 40 min aortic cross-clamping and cardioplegic arrest; IV. Impella: 1 h left ventricular blood-pump support and stabilizer with 40 min intracoronary shunt. A left internal mammary to left anterior descending coronary artery bypass was performed in Groups II-IV. All animals were observed for a further 240 min. During the experiment haemodynamics, creatinine clearance, intestinal fatty acid binding protein (iFABP), pancreatic (lipase and amylase) and liver enzymes (α-glutathione s-transferase, glutamate-oxaloacetate transaminase (GOT), gamma-glutamyl transferase (GGT), glutamate dehydrogenase and glutamate-pyruvate transaminase (GPT)) were measured. Visceral perfusion (VP) was assessed in both kidneys, intestine, pancreas, liver and spleen with 15 µm fluorescent microspheres. RESULTS During OPCAB surgery, VP decreased slightly. Renal functional parameters, iFABP, pancreatic and liver enzymes remained unchanged. ECC and Impella led to significantly reduced renal, pancreatic and intestinal blood flow (P < 0.05). Creatinine clearance, pancreatic and liver (GPT, GGT) enzymes were significantly decreased only after ECC (P < 0.05). ECC and Impella resulted in a significantly increased iFABP level (P < 0.05). GOT was elevated significantly after surgery in Groups II, III and IV (P < 0.05). CONCLUSIONS CABG with ECC or Impella leads to impaired visceral blood flow and function. OPCAB minimizes these procedure associated alterations.
Collapse
Affiliation(s)
- Benjamin Bierbach
- Department of Cardiovascular Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany Institute for Neurosurgical Pathophysiology, University Mainz, Mainz, Germany
| | - Hagen Bomberg
- Department of Anesthesiology, Intensive Care Medicine and Pain Medicine University Hospital of Saarland, Homburg, Germany
| | - Hartmut Pritzer
- Institute for Neurosurgical Pathophysiology, University Mainz, Mainz, Germany
| | - Sudesh Prabhu
- Queensland Paediatric Cardiac Services, Mater Children's Hospital, Brisbane, Australia
| | - Rainer Petzina
- Department of Cardiovascular Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Oliver Kempski
- Institute for Neurosurgical Pathophysiology, University Mainz, Mainz, Germany
| | - Georg Horstick
- Institute for Neurosurgical Pathophysiology, University Mainz, Mainz, Germany
| | - Jochen Cremer
- Department of Cardiovascular Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Grischa Hoffmann
- Department of Cardiovascular Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| |
Collapse
|
4
|
Møller CH, Penninga L, Wetterslev J, Steinbrüchel DA, Gluud C. Off-pump versus on-pump coronary artery bypass grafting for ischaemic heart disease. Cochrane Database Syst Rev 2012:CD007224. [PMID: 22419321 DOI: 10.1002/14651858.cd007224.pub2] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
BACKGROUND Coronary artery bypass grafting (CABG) is performed both without and with cardiopulmonary bypass, referred to as off-pump and on-pump CABG respectively. However, the preferable technique is unclear. OBJECTIVES To assess the benefits and harms of off-pump versus on-pump CABG in patients with ischaemic heart disease. SEARCH METHODS We searched the Cochrane Central Register of Controlled Trials (CENTRAL) on The Cochrane Library (Issue 1, 2011), MEDLINE (OVID, 1950 to February 2011), EMBASE (OVID, 1980 to February 2011), Science Citation Index Expanded on ISI Web of Science (1970 to February 2011) and CINAHL (EBSCOhost, 1981 to February 2011) on 2 February 2011. No language restrictions were applied. SELECTION CRITERIA Randomised clinical trials of off-pump versus on-pump CABG irrespective of language, publication status and blinding were selected for inclusion. DATA COLLECTION AND ANALYSIS For statistical analysis of dichotomous data risk ratio (RR) and for continuous data mean difference (MD) with 95% confidence intervals (CI) were used. Trial sequential analysis (TSA) was used for analysis to assess the risk of random error due to sparse data and to multiple updating of accumulating data. MAIN RESULTS Eighty-six trials (10,716 participants) were included. Ten trials (4,950 participants) were considered to be low risk of bias. Pooled analysis of all trials showed that off-pump CABG increased all-cause mortality compared with on-pump CABG (189/5,180 (3.7%) versus 160/5144 (3.1%); RR 1.24, 95% CI 1.01 to 1.53; P =.04). In the trials at low risk of bias the effect was more pronounced (154/2,485 (6.2%) versus 113/2,465 (4.6%), RR 1.35,95% CI 1.07 to 1.70; P =.01). TSA showed that the risk of random error on the result was unlikely. Off-pump CABG resulted in fewer distal anastomoses (MD -0.28; 95% CI -0.40 to -0.16, P <.00001). No significant differences in myocardial infarction, stroke, renal insufficiency, or coronary re-intervention were observed. Off-pump CABG reduced post-operative atrial fibrillation compared with on-pump CABG, however, in trials at low risk of bias, the estimated effect was not significantly different. AUTHORS' CONCLUSIONS Our systematic review did not demonstrate any significant benefit of off-pump compared with on-pump CABG regarding mortality, stroke, or myocardial infarction. In contrast, we observed better long-term survival in the group of patients undergoing on-pump CABG with the use of cardiopulmonary bypass and cardioplegic arrest. Based on the current evidence, on-pump CABG should continue to be the standard surgical treatment. However, off-pump CABG may be acceptable when there are contraindications for cannulation of the aorta and cardiopulmonary bypass. Further randomised clinical trials should address the optimal treatment in such patients.
Collapse
Affiliation(s)
- Christian H Møller
- Department of Cardiothoracic Surgery, RT 2152, Copenhagen University Hospital, Rigshospitalet, Copenhagen,
| | | | | | | | | |
Collapse
|
5
|
Yildiz CE, Sayin M, Yerebakan H, Kucukaksu S. First Turkish Experiences of Assisted Beating-Heart Coronary Artery Bypass Graft with the Impella Microaxial Ventricular Assist Device�. Heart Surg Forum 2010; 13:E60-2. [DOI: 10.1532/hsf98.20091083] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The importance of minimally invasive cardiac operations, performed off-pump, without the support of cardiopulmonary bypass (CPB), is continuously increasing. Complete revascularization of obstructed coronary arteries is needed to obtain a better long-term outcome. Insertion into the left ventricle of an efficient microaxial pump can be useful when targeting an important coronary artery located at posterior wall of the heart in a patient with hemodynamic deficiency. The use of such a device can enable surgeons to avoid conversion from a preplanned off-pump strategy to traditional on-pump coronary bypass surgery. The Impella Microaxial Ventricular Assist Device (VAD) (Abiomed, Aachen, Germany) is a miniature pump with a 7-mm catheter and a flow rate of approximately 2.5-5 L/min. This device can enable cardiovascular surgery to be performed without damaging the left ventricle and causing serious aortic deficiency. Therefore, in patients with serious comorbidity, complete revascularization may be performed off pump, with the heart beating, because of the hemodynamic stability provided with the support of the microaxial intracardiac pump. If required, this pump can also support the heart during the early postoperative period. We report the first assisted beating-heart coronary artery bypass graft surgery performed with the Impella Microaxial VAD in our country. The surgery was performed on 2 patients considered high risk on the basis of EUROSCORE testing.
Collapse
|
6
|
Bierbach B, Meier M, Kasper-König W, Heimann A, Alessandri B, Horstick G, Oelert H, Kempski O. Emboli formation rather than inflammatory mediators are responsible for increased cerebral water content after conventional and assisted beating-heart myocardial revascularization in a porcine model. Stroke 2007; 39:213-9. [PMID: 18063820 DOI: 10.1161/strokeaha.107.496620] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND PURPOSE Emboli and proinflammatory mediators are suspected of generating cerebral edema after coronary surgery. In contrast to cardiopulmonary bypass (CPB), off-pump coronary artery bypass surgery (OPCAB) reduces microemboli count and proinflammatory mediator release but carries the risk of hemodynamic instability. A microaxial blood pump can augment cardiac output. METHODS Coronary bypasses were constructed in pigs with CPB and cardioplegia (n=9), OPCAB (n=9), or blood-pump support CAB (n=9). Nine animals underwent sham operation. Embolus count was monitored and regional cerebral blood flow was assessed with microspheres in 21 brain specimens per animal (n=189 per group). Interleukins 6 and 8 and tumor necrosis factor-alpha concentrations were determined. These variables were studied before, during, and for 4 hours after surgery. Finally, cerebral water content was determined. RESULTS During CPB and blood-pump CAB, a significant number of emboli were counted in contrast to OPCAB and controls (P<0.05). During CPB, regional cerebral blood flow was affected (32 of 189) and showed reactive hyperemia except in 10 specimens after aortic cross-clamp release. This impairment persisted in 20 specimens. During and after OPCAB, regional cerebral blood flow remained nearly unchanged but showed low flow during (58 of 189) and after (35 of 189) the blood-pump run. A significant increase in proinflammatory mediators was observed only in the CPB group. CPB and blood-pump CAB significantly increased cerebral water content (P<0.05). A strong correlation between embolic load and cerebral water content was observed in all groups. No correlation between proinflammatory mediator release and cerebral water content was detected. CONCLUSIONS Emboli formation rather than inflammatory mediators are responsible for increased cerebral water content after conventional and assisted beating-heart myocardial revascularization.
Collapse
Affiliation(s)
- Benjamin Bierbach
- Department of Cardiothoracic and Vascular Surgery, University Hospital Mainz, Mainz, Germany.
| | | | | | | | | | | | | | | |
Collapse
|
7
|
Christiansen S, Perez-Bouza A, Reul H, Autschbach R. In Vivo Experimental Testing of a Microaxial Blood Pump for Right Ventricular Support. Artif Organs 2006; 30:94-100. [PMID: 16433841 DOI: 10.1111/j.1525-1594.2006.00187.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The incidence of isolated right ventricular (RV) failure is rare in postcardiotomy patients, but high in patients undergoing implantation of a left ventricular assist device or cardiac transplantation. Therefore, we have developed a new microaxial flow device and report on our first in vivo animal trials. Six healthy adult female sheep weighing 80-90 kg underwent implantation of the microaxial blood pump for partial unloading of the right ventricle. This pump is a miniaturized rotary blood pump with a diameter of only 6.4 mm and a weight of 11 g. The inner volume of the pump is limited to 12 mL, and the inner artificial blood contacting surface is 65 cm(2). The pump consists of a rotor driven by an incorporated brushless direct current motor, the housing of the rotor, the inflow cage, the outflow cannula, and the driveline. At the maximum speed of 32,500 rotations/min, a flow of 6 L/min can be delivered. The inflow and outflow conduit were anastomosed to the right atrium and the main pulmonary artery, respectively. Hemodynamic and echocardiographic data as well as blood samples were measured over the whole test period of 7 days. The hearts and lungs as well as the pump were explanted for a thorough examination at the end of the trial. Systemic arterial blood pressures remained unchanged during the entire test period. RV cardiac output was diminished significantly as demonstrated by the echocardiographic studies. The number of platelets decreased perioperatively, but recovered within the test period. The free hemoglobin was not enhanced postoperatively indicating no significant hemolysis. Liver function was only slightly impaired due to operative reasons (increase in bilirubin on the first postoperative day but normalization within the test period). The pathologic examination revealed some clots at the inflow cage and fibrin depositions on the impeller as well as on the inner surface of the outflow graft without an impairment of pump function. Our results demonstrate that this newly developed microaxial blood pump is a promising device for RV support, but it cannot be driven without any anticoagulation.
Collapse
|
8
|
|
9
|
Pr�vention und Behandlung des akuten Rechtsherzversagens nach orthotoper Herztransplantation durch Einsatz einer intrakardialen Mikroaxialpumpe. ZEITSCHRIFT FUR HERZ THORAX UND GEFASSCHIRURGIE 2005. [DOI: 10.1007/s00398-005-0483-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
10
|
Reesink KD, Dekker AL, Van Ommen V, Soemers C, Geskes GG, van der Veen FH, Maessen JG. Miniature Intracardiac Assist Device Provides More Effective Cardiac Unloading and Circulatory Support During Severe Left Heart Failure Than Intraaortic Balloon Pumping. Chest 2004; 126:896-902. [PMID: 15364772 DOI: 10.1378/chest.126.3.896] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
BACKGROUND Hemodynamic assistance with a miniature intracardiac pump may fill the treatment gap between use of an intraaortic balloon pump (IABP) and the current, more invasive ventricular assist devices. The objective of this study was to compare the hemodynamic efficacy of a miniature intracardiac pump device with that of IABP. METHODS AND RESULTS Reversible acute mitral regurgitation (AMR) was induced in eight calves by stenting the mitral valve using a vena cava filter. Full and partial AMR assist were compared with maximum IABP support in each animal. In full-support mode, both assist systems increased cardiac output (miniature intracardiac pump, 13% [p < 0.05]; IABP, 3% [p < 0.05]), mean aortic pressure (miniature intracardiac pump, 13% [p < 0.05]; IABP, 8% [p < 0.05]), carotid artery flow (miniature intracardiac pump, 29% [p < 0.05]; IABP, 5% [difference not significant]), and coronary blood flow (miniature intracardiac pump, 25% [difference not significant]; IABP, 34% [p < 0.05]). Again in full-support mode, both systems reduced left atrial pressure (miniature intracardiac pump, 2.4 mm Hg [p < 0.05]; IABP, 0.7 mm Hg [p < 0.05]), peak left ventricular (LV) pressure (miniature intracardiac pump, 13% [p < 0.05]; IABP, 5% [p < 0.05]), and external LV work (miniature intracardiac pump, 29% [p < 0.05]; IABP, 3% [p < 0.05]). Only full miniature intracardiac pump support reduced both end-diastolic LV volume (7%; p < 0.05) and end-systolic LV volume (10%; p < 0.05). IABP mainly improved coronary perfusion, while the miniature intracardiac pump proved more capable of genuinely unloading the LV. CONCLUSIONS We conclude that during severe acute LV failure, the miniature intracardiac pump is capable of more effective cardiac unloading and circulatory support than IABP.
Collapse
Affiliation(s)
- Koen D Reesink
- Department of Cardiothoracic Surgery, Academic Hospital Maastricht, P. Debyelaan 25, 6229HX, Maastricht, The Netherlands
| | | | | | | | | | | | | |
Collapse
|
11
|
Kuhn-Régnier F, Geissler HJ, Lercher A, Mehlhorn U, Mehler O, Fischer JH, Rainer de Vivie E. Initial experience with a new right ventricular support device for beating heart surgery. Artif Organs 2004; 28:102-8. [PMID: 14720295 DOI: 10.1111/j.1525-1594.2004.07153.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Device supported beating heart surgery has been advocated to extend patient selection criteria for off-pump surgery. This article reports the initial experimental and clinical results with a novel paracardial right ventricular support device. METHODS Preclinical experiments were performed in two pigs. Ten elective patients with triple vessel disease were subjected to beating heart coronary artery bypass grafting surgery during right ventricular support by the paracardial device. Measurements included intraoperative hemodynamics during cardiac tilting, perioperative left ventricular ejection fraction (LVEF), hemolysis parameters, mortality and major morbidity events. RESULTS A mean of 3.2 +/- 0.2 distal anastomoses per patient were performed. Mean arterial pressure and central venous oxygen saturation remained stable during cardiac tilting. Perioperative LVEF did not vary significantly. Sixty-day mortality and postoperative infarction rate were 0%. Functional Canadian Cardiovascular Society class at 6 days after surgery was 1.2 +/- 0.1 vs. 3.3 +/- 0.2 pre-operatively. CONCLUSION In this initial clinical experience, application of the novel paracardial right ventricular support device proved to be safe and efficient.
Collapse
|
12
|
Isgro F, Kiessling AH, Rehn E, Lang J, Saggau W. Intracardiac left ventricular support in beating heart, multi-vessel revascularization. J Card Surg 2003; 18:240-4. [PMID: 12809398 DOI: 10.1046/j.1540-8191.2003.02022.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Less invasive operation procedures without support of extracorporeal circulation are becoming increasingly important. A basic requirement for good long-term results in such cases is, however, the complete revascularization of the affected coronary vessels. The unsatisfactorily high conversion rate from bypass operations originally planned as off-pump to conventional operations with heart-lung machines, because of the failure to reach the target vessels on the rear wall of the heart through hemodynamic instability led to investigation of the efficiency of a microaxial pump (Impella elect) placed in the left ventricle. METHODS In a prospective project 15 of 38 consecutive patients selected for coronary revascularization with beating heart had a micro pump transaortically implanted in the left ventricle to support the heart during the operation with a flow rate of 2.5 to 3.9 l/min. RESULTS With 8 of 23 patients operated on without pump support, the operation had to be converted to conventional methods with a heart-lung machine. Only one patient out of the left-ventricle-supported group had to be further operated on conventionally because of a deep intramyocardial positioned left anterior descending coronary artery (LAD) (p < 0.05). The investigated laboratory parameters, especially creatine kinase (CK), CK-MB isoenzyme, and clotting showed no significant difference. There tended to be a higher blood loss recorded with the pump-supported patients. CONCLUSION In summary, it appeared that the application of a left ventricular coaxial pump with comparable results seemed to make possible complete revascularization in nearly all patients.
Collapse
Affiliation(s)
- Frank Isgro
- Clinic for Cardiac Surgery, Heart Institute Ludwigshafen, Germany
| | | | | | | | | |
Collapse
|
13
|
Christiansen S, Göbel C, Buhre W, Reul H, Autschbach R. Successful use of a miniaturized bypass system with the DeltaStream extracorporeal rotary blood pump. J Thorac Cardiovasc Surg 2003; 125:43-4. [PMID: 12538983 DOI: 10.1067/mtc.2003.122] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Stefan Christiansen
- Departments of Cardiothoracic Surgery, University of Aachen, Aachen, Germany.
| | | | | | | | | |
Collapse
|
14
|
Martin J, Benk C, Yerebakan C, Derjung G, Sarai K, Beyersdorf F. The new "Impella" intracardiac microaxial pump for treatment of right heart failure after orthotopic heart transplantation. Transplant Proc 2001; 33:3549-50. [PMID: 11750510 DOI: 10.1016/s0041-1345(01)02428-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- J Martin
- Division of Cardiovascular Surgery, Albert-Ludwigs-University Medical Center, Freiburg, Germany
| | | | | | | | | | | |
Collapse
|