Strategy-specific durability of mitral valve repair through the video-assisted right minithoracotomy approach

Early Postoperative Complications of Robotic-assisted Versus Minimally Invasive Mitral Valve Surgery: A Propensity Score-matched Analysis

OBJECTIVE

The current work was designed to evaluate whether robotic-assisted mitral valve surgery is associated with a different incidence of early postoperative complications compared with the traditional minimally invasive approach.

DESIGN

A retrospective monocentric cohort study was conducted.

SETTING

The study was performed in an academic hospital.

PARTICIPANTS

A total of 375 patients who underwent standard thoracoscopic minimally invasive mitral valve surgery and robotic-assisted mitral valve surgery between April 2014 and November 2022 were enrolled.

INTERVENTION

None.

MEASUREMENTS AND MAIN RESULTS

After adjustment using propensity score analysis, 98 patients from each group were identified. Patients who underwent robotic surgery presented a similar rate of early complications to patients undergoing minimally invasive surgery. Nevertheless, they showed shorter intensive care unit and postoperative hospital stays. Finally, patients undergoing robotic-assisted surgery were more frequently discharged home.

CONCLUSIONS

This study identified a similar incidence of early complications in robotic-assisted mitral valve surgery compared with minimally invasive mitral valve surgery; conversely, patients receiving robotic-assisted surgery were discharged earlier, and more frequently discharged home.

Comparative myocardial protection of endoaortic balloon versus external clamp in minimally invasive mitral valve surgery

AIMS

Minimally invasive mitral valve surgery leads to shorter postoperative recovery time, cosmetic advantages and significant pain reduction compared with the standard sternotomy approach. Both an external aortic clamp and an endoaortic balloon occlusion can be used to manage the ascending aorta and the myocardial protection. In this study, we aimed to compare these two strategies in terms of effectiveness of myocardial protection and associated early postoperative outcomes.

METHODS

We investigated the retrospective records of prospectively collected data of patients treated by minimally invasive mitral valve surgery from March 2014 to June 2019. A total of 180 cases (78 in the external aortic clamp group and 102 in the endoaortic balloon clamp group) were collected. A propensity weighting analysis was adopted to adjust for baseline variables.

RESULTS

The endoaortic balloon clamp presented higher EuroSCORE II (higher reoperative surgery rate). The intra- and postoperative data were similar between the two groups: the postoperative troponin-I levels, peak of serum lactates and rate of myocardial infarction were also comparable. The endoaortic clamp group recorded longer operative, cardiopulmonary bypass and cross-clamp times. The external clamp group showed a higher rate of postoperative atrial fibrillation and conduction block.

CONCLUSIONS

In experienced centers, the use of the endoaortic balloon clamp is safe, reproducible and comparable to the external aortic clamp regarding the effectiveness of myocardial protection: its employment might facilitate minimally invasive mitral valve surgery.

Evaluation of robotic-assisted mitral surgery in a contemporary experience

AIMS

To evaluate the safety/effectiveness of a recently established robotic-assisted mitral surgery program.

METHODS

Cohort study with prospective collection of clinical data of 59 consecutive recipients (May 2019-August 2021) of robotic-assisted (fourth-generation platform, DaVinci X) mitral valve repair for degenerative disease, using a totally endoscopic technique. Patients' selection was based on defined anatomical and clinical criteria. We established a dedicated multidisciplinary protocol to facilitate postoperative fast-tracking, and a systematic in-house clinical and echocardiographic follow-up at 3, 6, and 12 postoperative months.

RESULTS

All patients (89.8% men, average age 58 ± 12 years) received mitral valve repair; there was no operative mortality, one conversion to sternotomy (1.7%) and one stroke (1.7%). Extubation within the operative theater occurred in 28.8%; average mechanical ventilation time and ICU stay was 2.8 ± 4.1 and 32.5 ± 15.8 h (after exclusion of one outlier, learning-curve period, suffering from perioperative stroke); average postoperative hospital stay was 6.8 ± 3.4 days and 96.6% of patients were discharged home. One patient was transfused (1.7%); there were no other complications. Follow-up revealed stability of the results of mitral repair, with one (1.7%) persistent (>2+/4+) mitral regurgitation, and stability of coaptation height over time. We observed optimal functional results (class I was 98% at 3 months and 96% at 12 months). Quarterly case load consistently increased during the experience.

CONCLUSION

This initial experience suggests the reliability and clinical safety of a recently established local robotic-assisted mitral surgery. This strategy can facilitate faster postoperative recovery, and its positioning in the therapeutic armamentarium needs to be defined.

Versatility of endoaortic balloon occlusion device for less invasive management of complex and reoperative cardiac cases

Heart Teams are increasingly confronted with decision-making in anatomically and clinically complex surgical candidates. Herein, we discuss the versatility of the endoaortic occlusion device (Intraclude; Edwards Lifesciences Inc) for the management of a various array of complex primary and reoperative cardiac cases. Three clinical scenarios are illustrated (ascending aortic pseudoaneurysm, mitral valve surgery after previous CABG, extensive thoracic aortic surgery with continuous visceral perfusion), suggesting the effectiveness of the patient-specific strategy to minimize operative morbidity. Evolution of surgical techniques needs to be considered in decision-making among alternative treatment strategies.