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Transthoracic clamp versus endoaortic balloon occlusion in minimally invasive mitral valve surgery: a systematic review and meta-analysis.

ABSTRACT: This systematic review and meta-analysis aims to determine outcomes following aortic occlusion with the transthoracic clamp (TTC) versus endoaortic balloon occlusion (EABO) in patients undergoing minimally invasive mitral valve surgery. A subgroup analysis compares TTC to EABO with femoral cannulation separately from EABO with aortic cannulation. We searched Medline and Embase up to December 2018. Two people independently and in duplicate screened title and abstracts, full-text reports, extracted data and assessed the risk of bias using the Cochrane risk-of-bias tool for non-randomized studies. We identified 1564 reports from which 11 observational studies with 4181 participants met the inclusion criteria. We found no evidence of difference in the risk of postoperative death or cerebrovascular accident (CVA) between the 2 techniques. Evidence for a reduction in aortic dissection with TTC was found: 4 of 1590 for the TTC group vs 19 of 2492 for the EABO group [risk ratio 0.33, 95% confidence interval (CI) 0.12-0.93; P?=?0.04]. There was no difference in aortic cross-clamp (AoX) time between TTC and EABO [mean difference (MD) -5.17?min, 95% CI -12.40 to 2.06; P?=?0.16]. TTC was associated with a shorter AoX time compared to EABO with femoral cannulation (MD -9.26?min, 95% CI -17.00 to -1.52; P?=?0.02). EABO with aortic cannulation was associated with a shorter AoX time compared to TTC (MD 7.77?min, 95% CI 3.29-12.26; P?

SUBMITTER: Rival PM

PROVIDER: S-EPMC6751412 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature

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Transthoracic clamp versus endoaortic balloon occlusion in minimally invasive mitral valve surgery: a systematic review and meta-analysis.

Rival Paul Martin PM Moore Theresa H M THM McAleenan Alexandra A Hamilton Hamish H Du Toit Zachary Z Akowuah Enoch E Angelini Gianni D GD Vohra Hunaid A HA

European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery 20191001 4

This systematic review and meta-analysis aims to determine outcomes following aortic occlusion with the transthoracic clamp (TTC) versus endoaortic balloon occlusion (EABO) in patients undergoing minimally invasive mitral valve surgery. A subgroup analysis compares TTC to EABO with femoral cannulation separately from EABO with aortic cannulation. We searched Medline and Embase up to December 2018. Two people independently and in duplicate screened title and abstracts, full-text reports, extracte ...[more]

PMID: 30715347

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Project description:Background:Cardiac redo surgery, especially after a full sternotomy, is considered a high-risk procedure. Minimally invasive mitral valve surgery (MIMVS) is a potential therapeutic approach. However, current developments in interventional cardiology necessitate additional discussion regarding the therapy of choice in high-risk patients. In this context, it is necessary to clarify the perioperative and postoperative risks induced by the factor previous sternotomy in the setting of MIMVS. Thus, we present a comparative study analyzing the outcome of MIMVS after previous sternotomy vs. primary operation. Methods:We identified 19 patients who received isolated or combined mitral valve (MV) surgery via the MIMVS approach after previous full sternotomy (PS group) and compared the results to those of a group of 357 patients who received primary MIMVS (non-PS group). After a propensity score analysis, groups of n?=?15 and n?=?131, respectively, were subjected to a comparative evaluation. A 1-year follow-up analysis of functional cardiac parameters and clinical symptoms was performed, accompanied by a Kaplan-Meier analysis. Results:Except for the rate of realized MV reconstructions (PS group: 53.8% vs. non-PS group: 85.5%; p?=?0.011), no significant differences were to be noted within the intraoperative and early postoperative course. However, patients in the PS group experienced an increased intensive care unit stay length (PS group: 2?days, 95% CI, 1-8 vs. non-PS group: 1 day, 95% CI, 1-2; p?=?0.072). The follow-up examinations revealed excellent functional and clinical outcomes for both groups. The Kaplan-Meier analysis displayed no significant difference regarding the postoperative mortality (p?=?0.929) related to the patients at risk. Conclusion:A previous sternotomy remains a risk factor for MIMVS and demands special attention in the early postoperative period. Nevertheless, the early- and late-term results concerning the functional and clinical outcomes suggest that the MIMVS procedure is satisfactory, even after a full sternotomy.

Project description:BackgroundMinimally-invasive (MIS) mitral valve (MV) surgery has become standard therapy in many cardiac surgery centers. While femoral arterial perfusion is the preferred cannulation strategy in MIS mitral valve surgery, retrograde arterial perfusion is known to be associated with an increased risk for cerebral atheroembolism, particularly in atherosclerosis patients. Therefore, antegrade perfusion may be beneficial in such cases. This analysis aimed to compare outcomes of antegrade axillary vs. retrograde femoral perfusion in the MIS mitral valve surgery.MethodsThis analysis includes 50 consecutive patients who underwent MIS between 2016 and 2020 using arterial cannulation of right axillary artery (Group A) due to severe aortic arteriosclerosis. Perioperative outcomes of the study group were compared with a historical control group of retrograde femoral perfusion (Group F) which was adjusted for age and gender (n = 50). Primary endpoint of the study was in-hospital mortality and perioperative cerebrovascular events.ResultsPatients in group A had a significantly higher perioperative risk as compared to Group F (EuroSCORE II: 3.9 ± 2.5 vs. 1.6 ± 1.5; p = 0.001; STS-Score: 2.1 ± 1.4 vs. 1.3 ± 0.6; p = 0.023). Cardiopulmonary bypass time (group A: 172 ± 46; group F: 178 ± 51 min; p = 0.627) and duration of surgery (group A: 260 ± 65; group F: 257 ± 69 min; p = 0.870) were similar. However, aortic cross clamp time was significantly shorter in group A as compared to group F (86 ± 20 vs. 111 ± 29 min, p < 0.001). There was no perioperative stroke in either groups. In-hospital mortality was similar in both groups (group A: 1 patient; group F: 0 patients; p = 0.289). In group A, one patient required central aortic repair due to intraoperative aortic dissection. No further cardiovascular events occurred in Group A patients.ConclusionSelective use of antegrade axillary artery perfusion in patients with systemic atherosclerosis shows similar in-hospital outcomes as compared to lower risk patients undergoing retrograde femoral perfusion. Patients with higher perioperative risk and severe atherosclerosis can be safely treated via the minimally invasive approach with antegrade axillary perfusion.

Project description:IntroductionNumbers of patients undergoing mitral valve repair (MVr) surgery for severe mitral regurgitation have grown and will continue to rise. MVr is routinely performed via median sternotomy; however, there is a move towards less invasive surgical approaches.There is debate within the clinical and National Health Service (NHS) commissioning community about widespread adoption of minimally invasive MVr surgery in the absence of robust research evidence; implementation requires investment in staff and infrastructure.The UK Mini Mitral trial will provide definitive evidence comparing patient, NHS and clinical outcomes in adult patients undergoing MVr surgery. It will establish the best surgical approach for MVr, setting a standard against which emerging percutaneous techniques can be measured. Findings will inform optimisation of cost-effective practice.Methods and analysisUK Mini Mitral is a multicentre, expertise based randomised controlled trial of minimally invasive thoracoscopically guided right minithoracotomy versus conventional sternotomy for MVr. The trial is taking place in NHS cardiothoracic centres in the UK with established minimally invasive mitral valve surgery programmes. In each centre, consenting and eligible patients are randomised to receive surgery performed by consultant surgeons who meet protocol-defined surgical expertise criteria. Patients are followed for 1 year, and consent to longer term follow-up.Primary outcome is physical functioning 12 weeks following surgery, measured by change in Short Form Health Survey (SF-36v2) physical functioning scale. Early and 1 year echo data will be reported by a core laboratory. Estimates of key clinical and health economic outcomes will be reported up to 5 years.The primary economic outcome is cost effectiveness, measured as incremental cost per quality-adjusted life year gained over 52 weeks following index surgery.Ethics and disseminationA favourable opinion was given by Wales REC 6 (16/WA/0156). Trial findings will be disseminated to patients, clinicians, commissioning groups and through peer reviewed publication.Trial registration numberISRCTN13930454.

Dataset Information

Transthoracic clamp versus endoaortic balloon occlusion in minimally invasive mitral valve surgery: a systematic review and meta-analysis.

Publications

Transthoracic clamp versus endoaortic balloon occlusion in minimally invasive mitral valve surgery: a systematic review and meta-analysis.

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