Optimal Management of Patients Treated With Minimally Invasive Cardiac Surgery in the Era of Enhanced Recovery After Surgery and Fast-Track Protocols: A Narrative Review

Analysis of postoperative atrial fibrillation and its associated factors in Morrow procedures with cardiopulmonary bypass

BACKGROUND

The factors influencing the onset of new atrial fibrillation following the Morrow procedure due to cardiopulmonary bypass (CPB) are unclear. This study investigated the CPB-related factors associated with postoperative atrial fibrillation (POAF) in patients undergoing minimally invasive ventricular septal myectomy (Morrow procedure) to optimize CPB strategies, reduce the incidence of POAF, and enhance recovery.

METHODS

A retrospective clinical data analysis was conducted on 139 patients who underwent minimally invasive Morrow procedures from January to December 2023. The patients were divided into two groups based on whether they developed new-onset atrial fibrillation after surgery, and a comparative study was performed. Multivariate regression analysis were used to assess factors potentially influencing POAF during CPB.

RESULTS

Fifty (36%) patients developed POAF. Comparisons between the POAF group and the non-POAF group revealed significant differences in preoperative hypertension (38.0% vs. 14.6%, p = 0.002), ischaemic cardiomyopathy (40.0% vs. 20.2%, p = 0.012), history of heart failure (44.0% vs. 22.5%, p = 0.008), age (55.16 ± 14.11 vs. 46.28 ± 14.55, p = 0.001), the preoperative systemic immune-inflammation index (SII) (418.26 ± 243.97 vs. 330.24 ± 152.89, p = 0.019), the left atrial volume index (LAVI) (36.79 ± 12.08 vs. 32.24 ± 10.78, p = 0.024), CPB time (129.80 ± 39.58 vs. 116.96 ± 28.80, p = 0.027), CPB weaning time (25.68 ± 22.56 vs. 19.49 ± 6.78, p = 0.018), rate of re-CPB (14.0% vs. 3.4%, p = 0.020), rate of ultrafast-track cardiac anesthesia (UFTCA) (78.0% vs. 98.9%, p = 0.000), and ΔSII (2874.58 ± 2865.98 vs. 1981.85 ± 1519.89, p = 0.006) (P < 0.05). All patients were discharged, but the ICU (2.07 ± 2.91 vs. 1.38 ± 0.78, p = 0.046) and postoperative hospital stays (11.84 ± 7.50 vs. 9.13 ± 2.62, p = 0.002) were significantly prolonged. The results of the multivariate logistic regression analysis indicated that the occurrence of POAF was independently associated with age (OR = 1.047, 95% CI: 1.015-1.080), ΔSII(OR = 13.317, 95% CI: 3.103-57.154) and UFTCA(OR = 0.054, 95% CI: 0.006-0.493) (p < 0.05). Additionally, the increased value of SII was independently associated with CPB weaning time (t = 2.493, p = 0.014) and age(t=-2.270, p = 0.025).

CONCLUSION

UFTCA is a protective factor against POAF. Age and ΔSII are risk factors for the occurrence of POAF after the Morrow procedure. CPB weaning time and Age are significant influencing factors of ΔSII. Implementing UFTCA and shortening the CPB weaning time are expected to lower the risk of POAF, shorten ICU and hospital stays, and enhance recovery.

CLINICAL TRIAL NUMBER

Not applicable.

Enhancing Recovery in Gastrointestinal and Cardiovascular Surgeries Through Enhanced Recovery After Surgery (ERAS) Protocols

Enhanced Recovery After Surgery (ERAS) protocols aim to improve perioperative outcomes and expedite recovery across various surgical specialties. While ERAS protocols have shown significant benefits in gastrointestinal and cardiovascular surgeries, their impact and effectiveness require further synthesis. This systematic review and meta-analysis evaluated the efficacy of ERAS protocols in enhancing recovery and reducing complications in gastrointestinal and cardiovascular surgeries. High-quality studies were selected based on adherence to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines and quality assessment using the Newcastle-Ottawa Scale (NOS). A systematic review and meta-analysis of six high-quality studies involving 45,678 patients were conducted using databases such as PubMed, MEDLINE, EMBASE, and Cochrane Central. Data on length of hospital stay (LOS), complications, 30-day readmissions, and mortality were extracted. Statistical analysis employed random-effects models to calculate pooled effect sizes, odds ratios (ORs), and hazard ratios. Subgroup analyses were performed based on surgery type, patient age, comorbidities, and follow-up duration. ORs for postoperative complications varied across subgroups (e.g., urgent vs. elective surgeries), with some ranges (e.g., 0.65-1.02) reflecting mixed effects; sensitivity analyses confirmed the robustness of pooled outcomes. Recovery times ranged from 1 to 3 days for gastrointestinal surgeries and 4 to 9 days for cardiovascular surgeries, demonstrating clinically meaningful variability. ERAS protocols showed greater recovery benefits in urgent surgeries (HR = 1.42, 95% CI: 1.15-1.75) and in patients with comorbidities (HR = 1.62, 95% CI: 1.33-1.96), likely due to their emphasis on rapid stabilization of perioperative care, including early mobilization and nutritional support. Heterogeneity, assessed through sensitivity analyses, ranged from moderate to substantial across subgroup analyses. ERAS protocols consistently enhance recovery outcomes, minimize complications, and reduce hospital stays in gastrointestinal and cardiovascular surgeries, demonstrating their utility in optimizing perioperative care. Future research should explore long-term outcomes and tailored implementation strategies to address patient-specific needs.

Effectiveness of the Individualized Self-Care Program Based on Orem's Self-Care Theory: Impact on Learning Needs and Self-Care Behaviors Following Coronary Artery Bypass Surgery - A Randomized Controlled Trial

PURPOSE

This study aimed to investigate the specific learning needs of patients within the experimental group after receiving the Individualized Self-Care Program (ISCP) at two key time points: Time 2 (Day 2, Week 1) and Time 3 (Day 15, Week 3). Furthermore, it aimed to compare the effectiveness of the ISCP in improving self-care behavior between the experimental group and the control group, which received standard health education.

METHODS

The study utilized a randomized controlled trial (RCT) design and included a consecutive sample of 128 patients who had undergone their first Coronary Artery Bypass Graft (CABG) procedure. These patients were randomly divided into two groups: the experimental group (n = 64) and the control group (n = 64). The experimental group received an ISCP at Time 2 and Time 3 after being discharged, whereas the control group received standard health education. Statistical analyses included paired t-tests to assess differences in learning needs over time and Repeated Measures Analysis of Variance (ANOVA) to evaluate the effectiveness of the ISCP on self-care behavior.

RESULTS

A paired t-test indicated a statistically significant difference in the total number of learning needs identified within the experimental group between Time 2 and Time 3 assessments. Patients in the experimental group initially identified more learning needs at Time 2 (4.3 ± 1.5), but their knowledge significantly improved at Time 3, leading to fewer learning needs (2.6 ± 1.1). Furthermore, an ANOVA comparing the experimental and control groups showed that the ISCP effectively improved self-care behavior in the experimental group, with significantly greater improvements compared to the control group, which received standard health education.

CONCLUSION

ISCP delivered in early recovery enhances self-care behaviors and addresses postdischarge gaps. The study also revealed that patients' learning needs change over time during home recovery, emphasizing the importance of tailored self-care programs for CABG patients after discharge.

TRIAL REGISTRATION

IRCT registration number: ISRCTN96836216.

Remimazolam Use in Cardiac Anesthesia: A Narrative Review

Remimazolam, a novel ultra-short-acting intravenous benzodiazepine, has garnered recent attention for its use as a general anesthetic. This narrative review aims to summarize and analyze the available literature on the effects of remimazolam use in cardiac surgical patients, including its effects on hemodynamics, safety in patients with baseline myocardial dysfunction, and impact on postoperative management including time to emergence and extubation. Finally, there is discussion regarding potential drawbacks of adopting remimazolam as a routine anesthetic for cardiac surgery.

Rapid-recovery protocol for minimally invasive mitral valve repair

Background

Minimally invasive mitral valve repair (MIMVR), often performed within specialized care pathways, has been shown to reduce hospital length of stay and improve patient recovery. The relative value of rapid-recovery protocols as a component of care pathways, including enhanced recovery programs (ERPs), has not been well described. This study compared clinical outcomes following implementation of a new, comprehensive rapid-recovery protocol within a previously established, mature ERP for patients undergoing MIMVR.

Methods

The rapid-recovery protocol was developed and implemented by a multidisciplinary team to further optimize patient recovery within an existing ERP. The protocol was applied to 75 consecutive patients undergoing MIMVR between September 2022 and December 2023. Outcomes were compared retrospectively to 75 ERP control patients who did not receive the rapid-recovery protocol but experienced the ERP. The primary outcome was a composite of discharge from the intensive care unit (ICU) by postoperative day (POD) 1, discharge to home by POD 4, and no all-cause hospital readmission by 30 days.

Results

Baseline characteristics were similar in the 2 groups. Patients in the rapid-recovery group achieved the primary composite outcome significantly more often compared to the control group (60% vs 40%, respectively). There was no between-group difference in postoperative complications. Multivariable logistic regression showed that age ≤60 years was significantly associated with rapid-recovery protocol success. Clinical barriers to achieving individual components of the primary outcome were described.

Conclusions

A rapid-recovery protocol for MIMVR was associated with early ICU and hospital discharge. These benefits were safely achieved without any increase in hospital readmission, morbidity, or mortality up to 30 days postoperatively.

Enhanced recovery after minimally invasive cardiac surgery following a zero ICU concept-a propensity score-matched analysis

OBJECTIVES

This study investigates our enhanced recovery after minimally invasive cardiac surgery program "enhanced recovery after minimally invasive cardiac surgery" (ERMICS) following a 'Zero ICU' concept compared to standard-of-care treatment in terms of safety and clinical efficacy.

METHODS

All patients who underwent minimally invasive mitral valve surgery for primary severe mitral valve regurgitation between 2021 and 2023 were included. Propensity score matching (2:1) was performed between patients who received standard-of-care treatment and those who underwent ERMICS. Patients treated with the ERMICS approach were transferred to the peripheral ward instead of the intensive care unit on the day of surgery (Zero ICU). Separate primary end-points were safety (mortality, stroke), postoperative ventilation time and hospital length of stay.

RESULTS

A total of 611 patients (566 standard of care vs 45 ERMICS) were included in the study. After 2:1 matching, the cohort comprised 135 patients (90 standard of care vs 45 ERMICS) and were well balanced in terms of pre- and intraoperative variables. Thirty-day mortality was 0% in both groups. Postoperative ventilation time [P = 0.018, odds ratio (OR) < 0.01, confidence interval (CI) < 0.001], postoperative pain (P = 0.005, OR = 0.36, CI 0.18-0.74) and hospital length of stay (P = 0.049, OR = 0.28, CI 0.08-0.98) was significantly lower in ERMICS patients, while postoperative complications did not differ.

CONCLUSIONS

Our ERMICS 'Zero ICU' concept is safe and leads to significantly shorter postoperative ventilation time and hospital length of stay for patients undergoing minimally invasive mitral valve surgery for primary severe mitral valve regurgitation.

Fine tuning for totally endoscopic mitral valve surgery: ERAS applications

Aim

One of the philosophies of minimally invasive mitral surgery is to enhance recovery after surgery (ERAS). Beyond surgical applications, ERAS applications provide a complementary approach to optimize postoperative course and discharge. In this report, we aim to present institutional protocol for ERAS and its results in patients who underwent totally endoscopic mitral valve surgery (TEMVS).

Patients and methods

Between 2021 and 2023, totally 113 patients who underwent TEMVS were included in this study. TEMVS was performed by peripheral cannulation and 3D endoscopic technique. As a dedicated team, institutional ERAS protocols which are used are listed above: (1) Education; operative course, cessation of smoking and alcohol. (2) Anemia; diagnostic evaluation and its treatment by iv iron. (3) Optimization of blood glucose; checking of HbA1c and control of hyperglycemia. (4) Rehabilitation; Physical and pulmonary rehabilitation. (5) Anxiety and Analgesia treatment. (6) Blood Conservation techniques; Antifibrinolytic, acute normovolemic hemodilution, less priming volume, mini-incision, meticulous surgery by 3D endoscope. (7) Postoperative; early extubation, prevention of nausea, aggressive analgesia, early mobilization, early removal of tubes. (8) Restrictive transfusion strategy. (9) Early discharge.

Results

The mean age was 54.7 years, and 56% was female. The rate of iv iron therapy for anemia was 26.5%. Mitral repair was performed in 58.4% of the cases. The repair rate of degenerative mitral valve was 96.9%. Of all, 68.1% did not have any red packed cells and 15.9% had only one unit. Ninety-five patients (90.2%) did not have any unit of fresh frozen plasma. The median extubation time was 7 h. On the postoperative first day, 96% of foley catheters, 87% of all central venous catheter and 93% of all drainage tubes are removed. The rates of respiratory, infectious, and renal complications were 9%, 3.5%, 3.4% respectively. The median ICU, and hospital stays were 1 and 5 days respectively. There was only one mortality in the early postoperative period.

Conclusion

Totally endoscopic mitral valve surgery provides minimal surgical trauma. By the addition of well-established and nurse-based ERAS protocols, complication and transfusion rates can be decreased, early recovery and discharge can be provided.

Anesthesia for Minimal Invasive Cardiac Surgery: The Bonn Heart Center Protocol

The development and adoption of minimally invasive techniques has revolutionized various surgical disciplines and has also been introduced into cardiac surgery, offering patients less invasive options with reduced trauma and faster recovery time compared to traditional open-heart procedures with sternotomy. This article provides a comprehensive overview of the anesthesiologic management for minimally invasive cardiac surgery (MICS), focusing on preoperative assessment, intraoperative anesthesia techniques, and postoperative care protocols. Anesthesia induction and airway management strategies are tailored to each patient's needs, with meticulous attention to maintaining hemodynamic stability and ensuring adequate ventilation. Intraoperative monitoring, including transesophageal echocardiography (TEE), processed EEG monitoring, and near-infrared spectroscopy (NIRS), facilitates real-time assessment of cardiac and cerebral perfusion, as well as function, optimizing patient safety and improving outcomes. The peripheral cannulation techniques for cardiopulmonary bypass (CPB) initiation are described, highlighting the importance of cannula placement to minimize tissue as well as vessel trauma and optimize perfusion. This article also discusses specific MICS procedures, detailing anesthetic considerations and surgical techniques. The perioperative care of patients undergoing MICS requires a multidisciplinary approach including surgeons, perfusionists, and anesthesiologists adhering to standardized treatment protocols and pathways. By leveraging advanced monitoring techniques and tailored anesthetic protocols, clinicians can optimize patient outcomes and promote early extubation and enhanced recovery.

Maximizing Minimally Invasive Cardiac Surgery With Enhanced Recovery (ERAS)

We convened a group of cardiac surgeons, intensivists, and anesthesiologists with extensive experience in minimally invasive cardiac surgery (MICS) and perioperative care to identify the essential elements of a MICS program and the relationship with Enhanced Recovery After Surgery (ERAS). The MICS incision should minimize tissue invasion without compromising surgical goals. MICS also requires safe management of hemodynamics and preservation of cardiac function, which we have termed myocardial management. Finally, comprehensive perioperative care through an ERAS program should be provided to allow patients to achieve optimal recovery. Therefore, we propose that MICS requires 3 elements: (1) a less invasive surgical incision (non-full sternotomy), (2) optimized myocardial management, and (3) ERAS. We contend that the full benefit of MICS can be achieved only by also utilizing an ERAS platform.

Closing the care gap: combining enhanced recovery with minimally invasive valve surgery

PURPOSE OF REVIEW

Patients with advanced age and frailty require interventions for structural heart disease at an increasing rate. These patients typically experience higher rates of postoperative morbidity, mortality and prolonged hospital length of stay, loss of independence as well as associated increased costs to the healthcare system. Therefore, it is becoming critically important to raise awareness and develop strategies to improve clinical outcomes in the contemporary, high-risk patient population undergoing cardiacprocedures.

RECENT FINDINGS

Percutaneous options for structural heart disease have dramatically improved the therapeutic options for some older, frail, high-risk patients; however, others may still require cardiac surgery. Minimally invasive techniques can reduce some of the physiologic burden experienced by patients undergoing surgery and improve recovery. Enhanced Recovery After Cardiac Surgery (ERAS Cardiac) is a comprehensive, interdisciplinary, evidence-based approach to perioperative care. It has been shown to improve recovery and patient satisfaction while reducing complications and length of stay.

SUMMARY

Combining minimally invasive cardiac surgery with enhanced recovery protocols may result in improved patient outcomes for a patient population at high risk of morbidity and mortality following cardiac surgery.

Ultrasound-guided erector spinae plane block for postoperative analgesia in patients undergoing minimally invasive direct coronary artery bypass surgery: a double-blinded randomized controlled trial

PURPOSE

Minimally invasive direct coronary artery bypass (MIDCAB) surgery is associated with significant postoperative pain. We aimed to investigate the efficacy of ultrasound-guided erector spinae plane block (ESPB) for analgesia after MIDCAB.

METHODS

We conducted randomized controlled trial in 60 patients undergoing MIDCAB who received either a single-shot ESPB with 30 mL of ropivacaine 0.5% (ESPB group, n = 30) or normal saline 0.9% (control group, n = 30). The primary outcome was numerical rating scale (NRS) pain scores at rest within 48 hr postoperatively. The secondary outcomes included postoperative NRS pain scores on deep inspiration within 48 hr, hydromorphone consumption, and quality of recovery-15 (QoR-15) score at 24 and 48 hr.

RESULTS

Compared with the control group, the ESPB group had lower NRS pain scores at rest at 6 hr (estimated mean difference, -2.1; 99% confidence interval [CI], -2.7 to -1.5; P < 0.001), 12 hr (-1.9; 99% CI, -2.6 to -1.2; P < 0.001), and 18 hr (-1.2; 99% CI, -1.8 to -0.6; P < 0.001) after surgery. The ESPB group also showed lower pain scores on deep inspiration at 6 hr (-2.9; 99% CI, -3.6 to -2.1; P < 0.001), 12 hr (-2.3; 99% CI, -3.1 to -1.5; P < 0.001), and 18 hr (-1.0; 99% CI, -1.8 to -0.2; P = 0.01) postoperatively. Patients in the ESPB group had lower total intraoperative fentanyl use, lower 24-hr hydromorphone consumption, a shorter time to extubation, and a shorter time to intensive care unit (ICU) discharge.

CONCLUSION

Erector spinae plane block provided early effective postoperative analgesia and reduced opioid consumption, time to extubation, and ICU discharge in patients undergoing MIDCAB.

TRIAL REGISTRATION

www.chictr.org.cn (ChiCTR2100052810); registered 5 November 2021.

The Enhanced Recovery after Surgery Approach in Heart Valve Surgery: A Systematic Review of Clinical Studies

Background: Enhanced recovery after surgery (ERAS) protocols aim to reduce postoperative complications and promote earlier recovery. Although it is well established in noncardiac surgery fields, the ERAS approach has only recently been adopted in cardiac surgery. The aim of this review is to evaluate the status and implementation of ERAS protocols in patients undergoing heart valve surgery and to summarise associated clinical results. Methods: A literature search for the period January 2015 and January 2024 was performed through online databases. Clinical studies (randomised controlled trials and cohort studies) on patients undergoing heart valve surgical procedures and comparing ERAS and conventional approaches were included. The data extracted covered studies and populations characteristics, early outcomes and the features of each ERAS protocol. Results: There were 14 studies that fulfilled the final search criteria and were ultimately included in the review. Overall, 5142 patients were identified in the 14 studies, with 2501 in ERAS groups and 2641 patients who were representative of control groups. Seven experiences exclusively included patients who underwent heart valve surgery. Twelve out of fourteen protocols involved multiple interventions from the preoperative to postoperative phase, while two studies reported actions limited to intraoperative and postoperative care. We found high heterogeneity among the included protocols regarding key actions targeted for improvement and measured outcomes. All the studies showed that ERAS pathways can be safely adopted in cardiac surgery and in most of the experiences were associated with shorter mechanical ventilation time, reduced postoperative opioid use and reduced ICU and hospital stays. Conclusions: As demonstrated in noncardiac surgery, the adoption of structured ERAS protocols has the potential to improve results in patients undergoing heart valve surgery. Further evidence based on larger populations is needed, including more homogenous pathways and reporting further outcomes in terms of patient satisfaction, recovery and quality of life after surgery.

Enhanced recovery protocols after surgery: A systematic review and meta-analysis of randomized trials in cardiac surgery

BACKGROUND

Previous meta-analyses combining randomized and observational evidence in cardiac surgery have shown positive impact of enhanced recovery protocols after surgery (ERAS) on postoperative outcomes. However, definitive data based on randomized studies are missing, and the entirety of the ERAS measures and pathway, as recently systematized in guidelines and consensus statements, have not been captured in the published studies. The available literature actually focuses on "ERAS-like" protocols or only limited number of ERAS measures. This study aims at analyzing all randomized studies applying ERAS-like protocols in cardiac surgery for perioperative outcomes.

METHODS

A meta-analysis of randomized controlled trials (RCTs) comparing ERAS-like with standard protocols of perioperative care was performed (PROSPERO registration CRD42021283765). PRISMA guidelines were used for abstracting and assessing data.

RESULTS

Thirteen single center RCTs (N = 1704, 850 in ERAS-like protocol and 854 in the standard care group) were selected. The most common procedures were surgical revascularization (66.3%) and valvular surgery (24.9%). No difference was found in the incidence of inhospital mortality between the ERAS and standard treatment group (risk ratio [RR] 0.61 [0.31; 1.20], p = 0.15). ERAS was associated with reduced intensive care unit (standardized mean difference [SMD] -0.57, p < 0.01) and hospital stay (SMD -0.23, p < 0.01) and reduced rates of overall complications when compared to the standard protocol (RR 0.60, p < 0.01) driven by the reduction in stroke (RR 0.29 [0.13; 0.62], p < 0.01). A significant heterogeneity in terms of the elements of the ERAS protocol included in the studies was observed.

CONCLUSIONS

ERAS-like protocols have no impact on short-term survival after cardiac surgery but allows for a faster hospital discharge while potentially reducing surgical complications. However, this study highlights a significant nonadherence and heterogeneity to the entirety of ERAS protocols warranting further RCTs in this field including a greater number of elements of the framework.

On-table extubation is associated with reduced intensive care unit stay and hospitalization after trans-axillary minimally invasive mitral valve surgery

OBJECTIVES

Few data are available regarding early extubation after mitral valve surgery. We sought to assess the impact of an enhanced recovery after surgery-based protocol-ultra-fast-track protocol-in patients undergoing minimally invasive transaxillary mitral valve surgery.

METHODS

Data of patients who underwent transaxillary mitral valve surgery associated with ultra-fast-track protocol between 2018 and 2023 were reviewed. We compared preoperative, intraoperative and postoperative data of patients who had fast-track extubation (≤6 h since the end of the procedure) and non-fast-track extubation (>6 h) and, within the fast-track group, patients who underwent on-table extubation and patients who were extubated in intensive care unit within 6 h. Multivariable logistic regression was used to study the association of extubation timing and intensive care unit stay, postoperative stay and discharge home.

RESULTS

Three hundred fifty-six patients were included in the study. Two hundred eighty-two patients underwent fast-track extubation (79%) and 160 were extubated on table (45%). We found no difference in terms of mortality and occurrence of major complications (overall mortality and cerebral stroke 0.3%) according to the extubation timing. Fast-track extubation was associated with shorter intensive care unit stay, discharge home and discharge home within postoperative day 7 when compared to non-fast-track extubation. Within the fast-track group, on-table extubation was associated with intensive care unit stay ≤1 day and discharge home within postoperative day 7.

CONCLUSIONS

Fast-track extubation was achievable in most of the patients undergoing transaxillary minimally invasive mitral valve surgery and was associated with higher rates of day 1 intensive care unit discharge and discharge home. On-table extubation was associated with further reduced intensive care unit stay and hospitalization.

Temporary mechanical circulatory support & enhancing recovery after cardiac surgery

PURPOSE OF REVIEW

This review highlights the integration of enhanced recovery principles with temporary mechanical circulatory support associated with adult cardiac surgery.

RECENT FINDINGS

Enhanced recovery elements and efforts have been associated with improvements in quality and value. Temporary mechanical circulatory support technologies have been successfully employed, improved, and the value of their proactive use to maintain hemodynamic goals and preserve long-term myocardial function is accruing.

SUMMARY

Temporary mechanical circulatory support devices promise to enhance recovery by mitigating the risk of complications, such as postcardiotomy cardiogenic shock, organ dysfunction, and death, associated with adult cardiac surgery.

The Clinical Application of Ultra-Fast-Track Cardiac Anesthesia in Right-Thoracoscopic Minimally Invasive Cardiac Surgery: A Retrospective Observational Study

OBJECTIVES

The purpose of this study was to investigate the effect of ultra-fast-track cardiac anesthesia (UFTCA) on rapid postoperative recovery in patients undergoing right-thoracoscopic minimally invasive cardiac surgery.

DESIGN

A retrospective observational study.

SETTING

A single large teaching hospital.

PARTICIPANTS

A total of 153 patients who underwent right-thoracoscopic minimally invasive cardiac surgery between January 2021 and August 2021 were enrolled. The inclusion criteria were American Society of Anesthesiologists grade I to III, New York Heart Association (NYHA) cardiac function class I to III, and age ≥18 years. The exclusion criteria were NYHA class IV, local anesthetic allergy, severe pulmonary hypertension (pulmonary arterial systolic pressure, PASP >70 mmHg), age ≤18 years or ≥80 years old, emergency surgery, and patients with incomplete or missing data.

INTERVENTIONS

Finally, a total of 122 patients were included and grouped by different anesthesia strategies. Sixty patients received serratus anterior plane block-assisted ultra-fast- track cardiac anesthesia (UFTCA group), and 62 patients received conventional general anesthesia (CGA group). The primary outcomes were lengths of hospital stay and postoperative intensive care unit (ICU) stay. The secondary outcomes were postoperative pain scores, opioids use, postoperative chest tube drainage, and complications.

MEASUREMENTS AND MAIN RESULTS

The intraoperative dosages of sufentanil and remifentanil in the UFTCA group were significantly lower than those in the CGA group (66.25 ± 1.03 µg v 283.31 ± 11.36 µg, p < 0.001; and 1.94 ± 0.38 mg v 2.14 ± 0.99 mg, p < 0.001, respectively). The incidence of postoperative rescue analgesia in the UFTCA group was significantly lower than that in the CGA group (10 patients [16.67%] v 30 patients [48.38%], p < 0.001). In the postoperative ICU, there were fewer patients with pain score Numeric Rating Scale ≥3 in the UFTCA group than that in the CGA group (10 patients [16.67%] v 29 patients [46.78%], p < 0.001). The postoperative extubation time in the UFTCA group was shorter than that in the CGA group (0.3 hours [range, 0.25-0.4 hours] v 13.84 hours [range, 10.25-18.36 hours], p < 0.001). Lengths of ICU stay and hospital stay in the UFTCA group were shorter than those in the CGA group (27.73 ± 16.54 hours v 61.69 ± 32.48 hours, p < 0.001; and 8 days [range, 7-9] v 9 days [range, 8-12], p < 0.001, respectively). Compared with the CGA group, the patients in the UFTCA group had less chest tube drainage within 24 hours after surgery (197.67 ± 13.05 mL v 318.23 ± 160.10 mL, p < 0.001). There were no significant differences in in-hospital mortality, postoperative bleeding, or secondary surgery between the 2 groups. The incidences of postoperative nausea, vomiting, or atelectasis were comparable between the 2 groups.

CONCLUSIONS

Serratus anterior plane block-assisted ultra-fast-track cardiac anesthesia can promote rapid postoperative recovery in patients with right-thoracoscopic minimally invasive cardiac surgery. This anesthesia regimen is clinically safe and feasible.

Factors associated with an unsuccessful Fast-Track course following Minimally Invasive Surgical Mitral Valve Repair

OBJECTIVES

Analyses of fast-track processes demonstrated that low-risk cardiac surgical patients require minimal intensive care, with a low incidence of mortality or morbidity. We investigated perioperative factors and their association with fast-track failure in a retrospective cohort study of patients undergoing minimally invasive mitral valve surgery.

METHODS

Patients undergoing minimally invasive surgical mitral valve repair for Carpentier type I or type II mitral regurgitation between 2014 and 2020 were included in the study. The definition of fast-track failure consisted of > 10 hours mechanical ventilation, >24 hours intensive care unit stay, re-intubation after extubation and re-admission to the intensive care unit. Multivariable logistic regression analysis enabled the identification of factors associated with fast-track failure.

RESULTS

In total, 491 patients were included in the study and were analysed. Two-hundred and thirty-seven patients (48.3%) failed the fast-track protocol. Multivariable logistic regression analysis showed that a New York Heart Association classification ≥3 (OR 2.05; CI 1.38-3.08; p < 0.001, pre-existing chronic kidney disease (OR 2.03; CI 1.14-3.70; p = 0.018), coronary artery disease (OR 1.90; CI 1.13-3.23; p = 0.016), postoperative bleeding requiring surgical revision (OR 8.36; CI 2.81-36.01; p < 0.001) and procedure time (OR 1.01; CI 1.01-1.01; p < 0.001) were independently associated with fast-track failure.

CONCLUSIONS

Factors associated with fast-track failure in patients with Carpentier type I and II pathologies undergoing minimally invasive mitral valve repair are a New York Heart Association classification III-IV at baseline, pre-existing chronic kidney disease and coronary artery disease. Postoperative bleeding requiring rethoracotomy and procedure time were also identified as important factors associated with failed fast-track.

CLINICAL REGISTRATION NUMBER

The corresponding local ethics committee (Charité Medical School, Berlin, Germany) approved the present study which complies with the Declaration of Helsinki (ethics approval number: EA2/175/20).

Interdisciplinary and cross-sectoral perioperative care model in cardiac surgery: implementation in the setting of minimally invasive heart valve surgery (INCREASE)-study protocol for a randomized controlled trial

Background

Valvular heart diseases are frequent and increasing in prevalence. Minimally invasive heart valve surgery embedded in an interdisciplinary enhanced recovery after surgery (ERAS) program may have potential benefits with regard to reduced length of stay and improved patient reported outcomes. However, no prospective randomized data exist regarding the superiority of ERAS program for the patients’ outcome.

Methods

We aim to randomize (1:1) a total of 186 eligible patients with minimally invasive heart valve surgery to an ERAS program vs. standard treatment at two centers including the University Medical Center Hamburg-Eppendorf, Germany, and the University Hospital Augsburg, Germany. The intervention is composed out of pre-, peri-, and postoperative components. The preoperative protocol aims at better preparation for the operation with regard to physical activity, nutrition, and psychological preparedness. Intraoperative anesthesiologic and surgical management are trimmed to enable an early extubation. Patients will be transferred to a specialized postoperative anesthesia care unit, where first mobilization occurs 3 h after surgery. Transfer to low care ward will be at the next day and discharge at the fifth day. Participants in the control group will receive treatment as usual. Primary endpoints include functional discharge at discharge and duration of in-hospital care during the first 12 months after index surgery. Secondary outcomes include health-related quality of life, health literacy, and level of physical activity.

Discussion

This is the first randomized controlled trial evaluating the effectiveness of an ERAS process after minimally invasive heart valve surgery. Interprofessional approach is the key factor of the ERAS process and includes in particular surgical, anesthesiological, physiotherapeutic, advanced nursing, and psychosocial components. A clinical implication guideline will be developed facilitating the adoption of ERAS model in other heart teams.

Trial registration

The study has been registered in ClinicalTrials.gov (NCT04977362 assigned July 27, 2021).