Perfusion-UkPub Date : 2024-11-06DOI: 10.1177/02676591241297048
Gavin Majithia-Beet, Roozbeh Naemi, Richard Issitt
{"title":"An investigation into the contributing factors to survival of ARDS patients supported by veno-venous ECMO.","authors":"Gavin Majithia-Beet, Roozbeh Naemi, Richard Issitt","doi":"10.1177/02676591241297048","DOIUrl":"https://doi.org/10.1177/02676591241297048","url":null,"abstract":"<p><strong>Introduction: </strong>This study aimed to identify characteristics associated with survival during and post Extra Corporeal Membrane Oxygenation (ECMO) therapy, in patients with acute respiratory distress syndrome (ARDS) during the COVID-19 pandemic.</p><p><strong>Methods: </strong>A retrospective observational study on 94 consecutive patients with confirmed COVID-19 induced ARDS supported by ECMO was carried out 49/94 (52.7%) patients survived to hospital discharge.</p><p><strong>Results: </strong>Non-survivors were found to have significantly (<i>p</i> < .05) higher: Pre-ECMO International normalized ratios (INR), carbon dioxide partial pressure (<i>p</i>CO<sub>2</sub>), Acute Kidney Injury (AKI) scores and blood urea levels. Also, lower pre-ECMO peak inspiratory pressures (PIP), mean arterial pressure, saturation of arterial oxygen (SaO<sub>2</sub>), blood bicarbonate levels (HCO3), blood Ph and fewer trials off ECMO with shorter combined trial off times. Patients that did not survive were more likely to have renal impairment and have received peri-ECMO haemofiltration. Poor prognosis was significantly associated with: receiving pre-ECMO nitric oxide (HR = 3.047, CI = 1.247-7.447, <i>p</i> = .015), renal impairment (HR = 3.023, CI = 1.586-5.763, <i>p</i> < .001), AKI of 2 (HR = 3.611, CI = 1.382-9.441, <i>p</i> = .009) or 3 (HR = 3.275, CI = 1.235-8.685, <i>p</i> = .017), peri-ECMO haemofiltration (HR = 2.412, CI = 1.310-4.442, <i>p</i> = .005) and the ABO blood group B (HR = 3.103, CI = 1.335-7.212, <i>p</i> = .008). pre-ECMO high CO<sub>2</sub> (HR = 1.134, CI = 1.031-1.248, <i>p</i> = .010), blood lactate (HR = 1.350, CI = 1.156-1.576, <i>p</i> < .001), INR (HR = 2.571, CI = 1.438-4.598, <i>p</i>=<0.001) and lower blood Ph (HR = 0.023, CI = 0.002-0.210, <i>p</i> < .001).</p><p><strong>Conclusions: </strong>Commonly used mortality scores may not be of use in a COVID-19 cohort of ECMO patients. The initiation of ECMO needs to be implemented prior to metabolic derangements, renal and fulminant respiratory failure.</p>","PeriodicalId":49707,"journal":{"name":"Perfusion-Uk","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142589832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Perfusion-UkPub Date : 2024-11-05DOI: 10.1177/02676591241297401
Andrew Chevalier, Autumn McKnite, Aviva Whelan, Carina Imburgia, Joseph E Rower, Kevin M Watt, Danielle J Green
{"title":"Interaction of azithromycin and methylprednisolone with ex-vivo extracorporeal membrane oxygenation circuits (ECMO).","authors":"Andrew Chevalier, Autumn McKnite, Aviva Whelan, Carina Imburgia, Joseph E Rower, Kevin M Watt, Danielle J Green","doi":"10.1177/02676591241297401","DOIUrl":"https://doi.org/10.1177/02676591241297401","url":null,"abstract":"<p><strong>Background: </strong>Azithromycin and methylprednisolone are two medications that are commonly used in patients who require ECMO support. Unfortunately, ECMO support can decrease drug concentrations through adsorption to circuit components. Such interactions have not been well described for either azithromycin or methylprednisolone. This study determined the extraction of these medications by ECMO circuits in an <i>ex-vivo</i> system.</p><p><strong>Methods: </strong>Medications were administered to closed-loop, blood-primed ECMO circuits to attain target therapeutic concentrations. Drug concentration remaining in the circuit was measured over 6 h. The difference in medication recovery was compared between the ECMO circuits and controls using two-sample t-tests.</p><p><strong>Results: </strong>Concentrations of azithromycin and methylprednisolone remained constant in control experiments over time, indicating medication stability in blood. There was no statistical difference in percent recovery after 6 h between control experiments and the ECMO circuits for either azithromycin (<i>p</i> = .32) or methylprednisolone (<i>p</i> = .17).</p><p><strong>Discussion: </strong>Azithromycin and methylprednisolone did not significantly interact with <i>ex-vivo</i> ECMO circuits. While these studies do not account for all <i>in-vivo</i> pharmacokinetic changes that may occur as a result of ECMO and critical illness, they suggest that standard dosing may be adequate to achieve therapeutic concentrations of azithromycin and methylprednisolone.</p>","PeriodicalId":49707,"journal":{"name":"Perfusion-Uk","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142584758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Perfusion-UkPub Date : 2024-11-05DOI: 10.1177/02676591241297319
Ling Wang, Jie Yi, Fang-Fang Qin, Cai-Xia Liu, Liu Huang
{"title":"Cardiopulmonary bypass of acute type A aortic dissection during pregnancy at the 20th gestational week with maternal and foetal survival: A case report.","authors":"Ling Wang, Jie Yi, Fang-Fang Qin, Cai-Xia Liu, Liu Huang","doi":"10.1177/02676591241297319","DOIUrl":"https://doi.org/10.1177/02676591241297319","url":null,"abstract":"<p><strong>Background: </strong>Type A acute aortic dissection, an aggressive and highly fatal disease, is particularly common among pregnant women and foetuses. This disease often occurs during the third trimester of pregnancy and the postpartum period.</p><p><strong>Case report: </strong>This case involves a female who was 20 weeks pregnant with type A acute aortic dissection. While maintaining pregnancy, the patient underwent Bentall surgery and Sun's procedure. The duration of circulatory arrest was a brief 4 min. The patient fully recovered 40 days after surgery and remained pregnant post-discharge. At the 38th gestational week, she delivered a healthy male infant via caesarean section.</p><p><strong>Clinical discussion: </strong>Gestational morbidity can have a serious impact on the safety of mothers and children. Currently, the shortest time reported for hypothermic circulatory arrest is 5 min. In this case, the lower body circulatory arrest was controlled to approximately 4 min during cardiopulmonary bypass while simultaneously safeguarding both individuals. Ideal strategies for cardiopulmonary bypass to reduce foetal risk include shorter cardiopulmonary bypass times, higher flow rates, and higher perfusion pressures. A reduction in the duration of hypothermic circulatory arrest further increases foetal survival rates.</p><p><strong>Conclusions: </strong>The development of a rational cardiopulmonary bypass plan should be tailored to the physiological characteristics of the pregnant woman to ensure the safety of both the pregnant woman and the foetus, reduce complications, and improve the success rate of the operation.</p>","PeriodicalId":49707,"journal":{"name":"Perfusion-Uk","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142584756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Perfusion-UkPub Date : 2024-11-04DOI: 10.1177/02676591241297545
Sara Scicluna, Magnus Dencker, Henrik Bjursten
{"title":"The safety of cell saver washing all shed mediastinal blood before re-transfusing it to the patient.","authors":"Sara Scicluna, Magnus Dencker, Henrik Bjursten","doi":"10.1177/02676591241297545","DOIUrl":"https://doi.org/10.1177/02676591241297545","url":null,"abstract":"<p><strong>Introduction: </strong>Cardiotomy suction blood is used in cardiopulmonary bypass (CPB) surgery to maintain blood volume in the CPB system, although it is known to contain micro emboli, cytokines and free plasma hemoglobin. Our aim was to investigate whether cell saver washing the cardiotomy suction blood before re-transfusing it is safe.</p><p><strong>Methods: </strong>This is a retrospective study of 1671 elective coronary artery bypass patients, 209 of whom had their pericardial blood processed in a cell saver (Ce-S group). PS matching was performed with patients who had their pericardial blood returned back to the CPB-system by the cardiotomy suction (Ca-S group). Perioperative transfusion requirements, surgical outcome, postoperative lab data and mortality were then compared.</p><p><strong>Results: </strong>There were no differences in baseline characteristics or EuroSCORE between the groups. The number of patients requiring transfusions did not differ, but the patients in the Ca-S group received more platelets (0.34 ± 1.0 vs 0.16 ± 0.7 units, <i>p</i> = .03) than in the Ce-S group. CRP (c-reactive protein) levels at day 2 and 4 were higher in the Ca-S group (174.8 ± 67.2 and 148.9 ± 74.3 mg/L vs 160.1 ± 64.6 and 125.9 ± 67.2 mg/L, <i>p</i> = .03, <i>p</i> = .002) and so were ASAT (aspartate aminotransferase) levels (0.97 ± 0.8 vs 0.81 ± 0.6 μkat/L, <i>p</i> = .03). Mortality, postoperative ventilation time, stroke, mediastinal infections and length of stay in the ICU were the same in both groups.</p><p><strong>Conclusions: </strong>In this retrospective study of patients undergoing elective CABG surgery, washing the cardiotomy suction blood before re-transfusion was not associated with higher risk of allogenic blood transfusion, postoperative stroke, mediastinal infections, or 30- and 365-days mortality.</p><p><strong>Clinical registration number: </strong>LU EPN 2016/4.</p>","PeriodicalId":49707,"journal":{"name":"Perfusion-Uk","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142570268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Perfusion-UkPub Date : 2024-11-03DOI: 10.1177/02676591241296714
Mehmet Cahit Saricaoglu, Yusuf Corbacioglu, Salih Anil Boga, Serenay Deniz, Irem Dincer, Ahmet Ruchan Akar
{"title":"Surgery for a giant atherosclerotic left main trifurcation saccular coronary artery aneurysm.","authors":"Mehmet Cahit Saricaoglu, Yusuf Corbacioglu, Salih Anil Boga, Serenay Deniz, Irem Dincer, Ahmet Ruchan Akar","doi":"10.1177/02676591241296714","DOIUrl":"https://doi.org/10.1177/02676591241296714","url":null,"abstract":"<p><p>Aneurysms of the left main coronary artery are rare clinical entities with an incidence of 0.1%. We herein report a case of left main trifurcation aneurysm in a 57-year-old woman whose coronary angiography demonstrated a giant saccular aneurysm of trifurcation of the left main coronary artery, measuring 32 × 21 mm with tight post-aneurysmal stenosis in the intermediate artery. The patient underwent coronary artery bypass grafting following the resection of CAA and reconstruction with saphenous vein roof-plasty, which ensured the preservation of the native coronary vasculature. At the 6-month follow-up, she remained asymptomatic and preserved preoperative left ventricular function.</p>","PeriodicalId":49707,"journal":{"name":"Perfusion-Uk","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142570262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Perfusion-UkPub Date : 2024-11-01Epub Date: 2023-09-29DOI: 10.1177/02676591231202719
Subhash Rao Kulkarni, Saveena Bishnoi
{"title":"A comparative study of the effect of two different delivery techniques (conventional versus microplegia) of del Nido cardioplegia on myocardium in paeditric congenital heart disease.","authors":"Subhash Rao Kulkarni, Saveena Bishnoi","doi":"10.1177/02676591231202719","DOIUrl":"10.1177/02676591231202719","url":null,"abstract":"<p><strong>Introduction: </strong>del Nido cardioplegia was developed for immature myocardium to prevent myocardial damage by Ca<sup>+2</sup> in traditional blood cardioplegia. But due to increased hemodilution and decreased colloid oncotic pressure it may cause myocardial edema and increased cardiac morbidity. Microplegia may have better cardioprotection in comparison to del Nido as there is less hemodilution.</p><p><strong>Material and methods: </strong>60 patients from the age group of 1 to 14 years were divided into two groups i.e. del Nido based microplegia group and conventional del Nido group for studying two different cardioplegia technique. Data were collected and compared for intraoperative Hb, CPK-MB and Trop-I levels changes and requirement for defibrillation in intraoperative period. Demographic data, CPB time and ACC time were also collected.</p><p><strong>Results: </strong>Marked elevation in CPK-MB and Trop-I levels were seen in both groups. Statistically significant difference was seen in CPK-MB levels after 6 h of surgery where del Nido group has higher value in comparison to microplegia group. No statistical difference was seen in Trop-I levels in both groups. Strength of correlation (r) was also stronger for CPK-MB rise in association with CPB time and ACC time, in del Nido group but not for Trop-I. Significantly higher hemodilution was also seen in del Nido group after delivering cardioplegia. None of the patients required defibrillation in any group.</p><p><strong>Conclusion: </strong>Lesser hemodilution was seen in microplegia group. Significant cardioprotection is associated with use of microplegia solution in pediatric age group.</p>","PeriodicalId":49707,"journal":{"name":"Perfusion-Uk","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41162409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Perfusion-UkPub Date : 2024-11-01Epub Date: 2023-10-31DOI: 10.1177/02676591231211503
Sebastian Buhl Rasmussen, Yuliya Boyko, Marco Ranucci, Filip de Somer, Hanne Berg Ravn
{"title":"Cardiac surgery-Associated acute kidney injury - A narrative review.","authors":"Sebastian Buhl Rasmussen, Yuliya Boyko, Marco Ranucci, Filip de Somer, Hanne Berg Ravn","doi":"10.1177/02676591231211503","DOIUrl":"10.1177/02676591231211503","url":null,"abstract":"<p><p>Cardiac Surgery-Associated Acute Kidney Injury (CSA-AKI) is a serious complication seen in approximately 20-30% of cardiac surgery patients. The underlying pathophysiology is complex, often involving both patient- and procedure related risk factors. In contrast to AKI occurring after other types of major surgery, the use of cardiopulmonary bypass comprises both additional advantages and challenges, including non-pulsatile flow, targeted blood flow and pressure as well as the ability to manipulate central venous pressure (congestion). With an increasing focus on the impact of CSA-AKI on both short and long-term mortality, early identification and management of high-risk patients for CSA-AKI has evolved. The present narrative review gives an up-to-date summary on definition, diagnosis, underlying pathophysiology, monitoring and implications of CSA-AKI, including potential preventive interventions. The review will provide the reader with an in-depth understanding of how to identify, support and provide a more personalized and tailored perioperative management to avoid development of CSA-AKI.</p>","PeriodicalId":49707,"journal":{"name":"Perfusion-Uk","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71415021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Perfusion-UkPub Date : 2024-11-01Epub Date: 2023-11-17DOI: 10.1177/02676591231216326
Nikhil R Shah, Brianna L Spencer, Kathryn M Maselli, Keyonna M Williams, Vikram Sood, Samir K Gadepalli, Arul S Thirumoorthi
{"title":"Lower extremity complications in children following femoral cannulation for extracorporeal membrane oxygenation.","authors":"Nikhil R Shah, Brianna L Spencer, Kathryn M Maselli, Keyonna M Williams, Vikram Sood, Samir K Gadepalli, Arul S Thirumoorthi","doi":"10.1177/02676591231216326","DOIUrl":"10.1177/02676591231216326","url":null,"abstract":"<p><strong>Introduction: </strong>Extracorporeal membrane oxygenation cannulation strategies vary between adults and children. Femoral approach is common in adults and extremity morbidity is well-documented. Aside from limb ischemia, complications in children are theorized and have yet to be studied. This study aims to comprehensively evaluate implications of pediatric femoral cannulation.</p><p><strong>Methods: </strong>This is a single-center retrospective review of children <21 years, undergoing femoral venoarterial (VA) or venovenous (VV) cannulation between 2015 and 2022. The primary outcome was incidence of lower extremity complications on ECMO (groin hematoma/hemorrhage, vascular thrombosis, North-South syndrome, compartment syndrome, limb loss). Secondary outcome was incidence of post-decannulation extremity complications (pseudoaneurysm, surgical site infection, vascular thrombosis, motor/sensory deficits).</p><p><strong>Results: </strong>29 children were cannulated via femoral approach. Most required VA support (89%). Common sites were right femoral artery (70.8%) and right femoral vein (56%). 18 patients (75%) had distal reperfusion cannulas (DPC) placed. Short-term lower extremity complication rate was 59%, most frequently groin hematoma/hemorrhage (30%) and North-South syndrome (19%). Compartment syndrome occurred in 3 patients (11%), though none suffered digit/limb loss. There were no significant differences in complications between cannulation approach (open vs percutaneous) or vessel laterality (ipsilateral vs contralateral). Of those decannulated (<i>n</i> = 15), median ECMO duration was 8 days. Following decannulation, 20% suffered pseudoaneurysm. Ten (63%) experienced ipsilateral motor weakness which resolved in 50% of patients at 1-month follow-up; 20% suffered sensory deficits all resolving by discharge.</p><p><strong>Conclusion: </strong>Approximately one third of children who underwent femoral cannulation suffered groin hematoma/hemorrhage and nearly 20% experienced North-South syndrome. Following decannulation, most had extremity weakness while sensory deficits were rarer. This marked risk of extremity morbidity prompts proactive inpatient monitoring and close surveillance after discharge.</p>","PeriodicalId":49707,"journal":{"name":"Perfusion-Uk","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136400034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Perfusion-UkPub Date : 2024-11-01Epub Date: 2023-10-19DOI: 10.1177/02676591231206016
Allison Hacker, Peter Maggs, Patrick Treanor, Kevin Lilly, Vladimir Birjiniuk
{"title":"Is cardioplegia system pressure the optimal measure of coronary perfusion during antegrade cardioplegia delivery? A critical review of pressure measurements for optimal antegrade delivery.","authors":"Allison Hacker, Peter Maggs, Patrick Treanor, Kevin Lilly, Vladimir Birjiniuk","doi":"10.1177/02676591231206016","DOIUrl":"10.1177/02676591231206016","url":null,"abstract":"<p><p>Antegrade cardioplegia is routinely given during cardiac surgery. The delivery of antegrade cardioplegia from the cardiopulmonary bypass machine has many variables. Many perfusionists rely exclusively on cardioplegia system pressure to ensure safe antegrade delivery. Our group reviewed antegrade cardioplegia delivery in 50 patients undergoing coronary artery bypass graft. The data collected included the cardioplegia system pressure and the patient's direct aortic root pressure. The analysis of the data found <i>weak correlation</i> between the two pressures with a <i>large</i> mean difference and a <i>wide</i> standard deviation. The results suggest the direct measurement of aortic root pressure as guidance to antegrade cardioplegia instead of relying solely on cardioplegia system pressure.</p>","PeriodicalId":49707,"journal":{"name":"Perfusion-Uk","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49684226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Perfusion-UkPub Date : 2024-11-01Epub Date: 2023-09-22DOI: 10.1177/02676591231204290
A Böning, S Menzebach, M Heep, U Gärtner, K T Preissner, B Niemann, Z T Taghiyev
{"title":"Calafiore cardioplegia offers better myocardial protection in adult and senescent rat hearts than Del Nido cardioplegia.","authors":"A Böning, S Menzebach, M Heep, U Gärtner, K T Preissner, B Niemann, Z T Taghiyev","doi":"10.1177/02676591231204290","DOIUrl":"10.1177/02676591231204290","url":null,"abstract":"<p><strong>Objectives: </strong>We compared the cardioprotective capacity of Del Nido cardioplegia and warm Calafiore blood cardioplegia in an experimental setting during 90 min of ischaemia.</p><p><strong>Methods: </strong>20 adult and 20 senescent rat hearts were isolated and mounted on a blood-perfused, pressure-controlled Langendorff apparatus. After a stabilization period, cardiac arrest (90 min) was induced by the administration of either Calafiore (Cala) or Del Nido solution (DNS). While Cala was given warm and intermittently, DNS was given as a cold single shot. During 90 min of reperfusion, cardiac function and metabolism were evaluated and biomarker levels were measured. After the end of the experiment, hearts were prepared for electronmicroscopic investigation.</p><p><strong>Results: </strong>Hearts exposed to Cala recovered faster during reperfusion compared with hearts administered DNS (Cala vs DNS at 30 min reperfusion: left ventricular developed pressure 72, SD: 22% of baseline (BL) versus 40, SD: 32% of BL, <i>p</i> < .001, and positive derived left ventricular pressure over time was better in both adult and senescent Cala groups (96, SD: 31% of BL) than in the DNS groups (39, SD: 27% of BL, <i>p</i> < .001). Ischaemic contractures were seen in the DNS groups starting after 30 min of ischaemia, whereas no rise in diastolic pressure was observed for the Cala groups. Accordingly, lactate production was higher after DNS (1.23 mg/dl (SD 0.87) than after Cala (0.33 mg/dl (SD 0.68), <i>p</i> = .015) at the beginning of reperfusion. Troponin I levels at the end of reperfusion were higher after DNS treatment in adult hearts (DNS: 287.9 SD: 147.7 ng/mL vs Cala 91.2: SD: 94.7 ng/mL, <i>p</i> = .02) and in senescent hearts (DNS: 376.5 (SD: 162.8) ng/ml versus Cala 104.7 (SD: 150.2) ng/ml, <i>p</i> = .025). Electron microscopy showed that the cellular oedema index was higher in adult DNS hearts (1.2 ± 0.2) than in adult Cala hearts (0.8 ± 0.1, <i>p</i> = .012), whereas the VS ratio was similar (0.18 ± 0.01 vs 0.17 ± 0.03).</p><p><strong>Conclusion: </strong>Calafiore cardioplegia offers better myocardial protection from ischaemia/reperfusion-related damage in isolated perfused adult and senescent rat hearts than Del Nido cardioplegia.</p>","PeriodicalId":49707,"journal":{"name":"Perfusion-Uk","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41174165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}