Biomarkers of inflammation and coagulation after minimally invasive mitral valve surgery: a prospective comparison to conventional surgery.

OBJECTIVES: Minimally invasive cardiac surgery techniques are increasingly used but have longer cardiopulmonary bypass time, which may increase inflammatory response and negatively affect coagulation. Our aim was to compare biomarkers of inflammation and coagulation as well as transfusion rates after minimally invasive mitral valve repair and mitral valve surgery using conventional sternotomy. DESIGN: A prospective non-randomized study was performed enrolling 71 patients undergoing mitral valve surgery (35 right mini-thoracotomy and 36 conventional sternotomy procedures). Blood samples were collected pre- and postoperatively to assess inflammatory response. Thromboelastometry (ROTEM) was performed to assess coagulation, and transfusion rates were monitored. RESULTS: The minimally invasive group had longer cardiopulmonary bypass times compared to the sternotomy group: 127 min ([115-146] vs 79 min [65-112], p < 0.001) and were cooled to a lower temperature during cardiopulmonary bypass, 34 °C vs 36 °C (p = 0.04). IL-6 was lower in the minimally invasive group compared to the conventional sternotomy group when measured at the end of the surgical procedure, (38 [23-69] vs 61[41-139], p = 0.008), but no differences were found at postoperative day 1 or postoperative day 3. The transfusion rate was lower in the minimally invasive group (14%) compared to full sternotomy (35%, p = 0.04) and the chest tube output was reduced, (395 ml [190-705] vs 570 ml [400-1040], p = 0.04). CONCLUSIONS: Our data showed that despite the longer use of extra corporal circulation during surgery, minimally invasive mitral valve repair is associated with reduced inflammatory response, lower rates of transfusion, and reduced chest tube output.

Antibiotic-loaded bone cement fixation technique combined with bilateral pectoralis major muscle flaps tension-free management for sternal infection after midline sternotomy.

INTRODUCTION: Deep sternal wound infection (DSWI) after midline sternotomy of cardiac surgery is a challenging complication that affects the outcome of surgery. This study aims to assess the clinical effectiveness of the antibiotic-loaded bone cement fixation technique combined with bilateral pectoralis major muscle flaps tension-free management in the treatment of DSWI. METHODS: We retrospectively analyzed 5 patients with DSWI who underwent antibiotic-loaded bone cement combined with bilateral pectoralis major muscle flaps for chest wall reconstruction after sternotomy for cardiac surgery in a tertiary hospital in China from January 2020 to December 2021. The clinical and follow-up data were retrospectively analyzed. RESULTS: All patients had no perioperative mortalities, no postoperative complications, 100% wound healing, and an average hospital stay length of 24 days. The follow-up periods were from 6 to 35 months (mean 19.6 months). None of the cases showed wound problems after initial reconstruction using antibiotic-loaded bone cement combined with bilateral pectoralis major muscle flaps. CONCLUSIONS: We report our successful treatment of DSWI, using antibiotic-loaded bone cement fixation technique combined with bilateral pectoralis major muscle flaps tension-free management. The clinical and follow-up results are favorable.

Comparison of the Effects of Full Median Sternotomy vs. Mini-Incision on Postoperative Pain in Cardiac Surgery: A Meta-Analysis.

INTRODUCTION: It is not yet clear whether cardiac surgery by mini-incision (minimally invasive cardiac surgery [MICS]) is overall less painful than the conventional approach by full sternotomy (FS). A meta-analysis is necessary to investigate polled results on this topic. METHODS: PubMed®/MEDLINE, Cochrane CENTRAL, Latin American and Caribbean Health Sciences Literature (or LILACS), and Scientific Electronic Library Online (or SciELO) were searched for all clinical trials, reported until 2022, comparing FS with MICS in coronary artery bypass grafting (CABG), mitral valve surgery (MVS), and aortic valve replacement (AVR), and postoperative pain outcome was analyzed. Main summary measures were the method of standardized mean differences (SMD) with a 95% confidence interval (CI) and P-values (considered statistically significant when < 0.05). RESULTS: In AVR, the general estimate of postoperative pain effect favored MICS (SMD 0.87 [95% CI 0.04 to 1.71], P=0.04). However, in the sensitivity analysis, there was no difference between the groups (SMD 0.70 [95% CI -0.69 to 2.09], P=0.32). For MVS, it was not possible to perform a meta-analysis with the included studies, because they had different methodologies. In CABG, the general estimate of the effect of postoperative pain did not favor any of the approaches (SMD -0.40 [95% CI -1.07 to 0.26], P=0.23), which was confirmed by sensitivity analysis (SMD -0.02 [95% CI -0.71 to 0.67], P=0.95). CONCLUSION: MICS was not globally less painful than the FS approach. It seems that postoperative pain is more related to the degree of tissue retraction than to the size of the incision.

Simulation Training for Emergency Sternotomy in the Cardiovascular Intensive Care Unit.

BACKGROUND: Emergency resternotomy in the intensive care unit for a patient who has undergone cardiac surgery can be daunting for surgeons and critical care staff. Clinicians involved are often unfamiliar with the surgical instruments and techniques needed. LOCAL PROBLEM: After an emergency intensive care unit resternotomy resulted in suboptimal performance and outcome, protocols for emergency resternotomy were established and improved. METHODS: Education and simulation training were used to improve staff comfort and familiarity with the needed techniques and supplies. The training intervention included simulations to provide hands-on experience, improve staff familiarity with resternotomy trays, and streamline emergency sternotomy protocols. Preintervention and postintervention surveys were used to assess participants' familiarity with the implemented plans and algorithms. RESULTS: All 44 participants (100%) completed the preintervention survey, and 41 of 44 participants (93%) returned the postintervention survey. After the intervention, 95% of respondents agreed that they were prepared to be members of the team for an emergency intensive care unit sternotomy, compared with 52% of respondents before the intervention. After the intervention, 95% of respondents strongly agreed or agreed that they could identify patients who might need emergency sternotomy, compared with 50% before the intervention. The results also showed improvement in staff members' understanding of team roles, activation and use of the emergency sternotomy protocol, and differences between guidelines for resuscitating patients who experience cardiac arrest after cardiac surgery and the post-cardiac arrest Advanced Cardiovascular Life Support protocol. CONCLUSION: Results of this quality improvement project suggest that simulation training improves staff comfort with and understanding of emergency resternotomy.

Outcomes and Risk Factors Associated with Pericardiectomy in Patients with Constrictive Pericarditis: A Retrospective Study from China.

PURPOSE: Pericardiectomy is the definitive treatment option for constrictive pericarditis and is associated with a high prevalence of morbidity and mortality. However, information on the associated outcomes and risk factors is limited. We aimed to report the mid-term outcomes of pericardiectomy from a single center in China. METHODS: We retrospectively reviewed data collected from patients who underwent pericardiectomy at our institute from April 2018 to January 2023. RESULTS: Eighty-six consecutive patients (average age, 46.1 ± 14.7 years; 68.6 men) underwent pericardiectomy through midline sternotomy. The most common etiology was idiopathic (n = 60, 69.8%), and 82 patients (95.3%) were in the New York Heart Association function class III/IV. In all, 32 (37.2%) patients underwent redo sternotomies, 36 (41.9%) underwent a concomitant procedure, and 39 (45.3%) required cardiopulmonary bypass. The 30-day mortality rate was 5.8%, and the 1-year and 5-year survival rates were 88.3% and 83.5%, respectively. Multivariable analysis revealed that preoperative mitral insufficiency (MI) ≥moderate (hazard ratio [HR], 6.435; 95% confidence interval [CI] [1.655-25.009]; p = 0.007) and partial pericardiectomy (HR, 11.410; 95% CI [3.052-42.663]; p = 0.000) were associated with increased 5-year mortality. CONCLUSION: Pericardiectomy remains a safe operation for constrictive pericarditis with optimal mid-term outcomes.

Continuous Superficial Parasternal Intercostal Plane Catheters for Poststernotomy Pain Control: A Case Series.

This case series describes the safety and effectiveness of superficial parasternal intercostal plane catheters for poststernotomy pain control in 4 patients who underwent multivessel coronary artery bypass grafting. Patients had reduced sternal pain and opioid consumption while the catheters ran continuously for 72 hours without complications. Our experience suggests the effectiveness of parasternal blocks can be safely prolonged with catheters, and they can be a useful addition to pain management strategies for this patient population.

[Mitral valve surgery via minimally invasive and conventional access]. / Mitral'naya khirurgiya iz mini- i traditsionnogo dostupov.

OBJECTIVE: To compare the immediate results of mini-thoracotomy and sternotomy in patients with mitral valve disease. MATERIAL AND METHODS: The study included 52 patients who underwent mitral valve surgery (25 cases - mini-thoracotomy, 27 cases - sternotomy). RESULTS: Aortic cross-clamping time was significantly longer in sternotomy compared to mini-thoracotomy group - 110 vs 94 min (p=0.03). Ventilation time was also significantly longer in the sternotomy group (12 vs. 8 hours, p=0.01). Postoperative morbidity was similar (postoperative wound infection, neurological complications, coronavirus disease, overall in-hospital mortality). CONCLUSION: In addition to cosmetic effect, minimally invasive approach in mitral valve surgery has some other advantages including less duration of aortic cross-clamping and mechanical ventilation, availability of reconstructive interventions due to better exposition of the mitral valve and subvalvular structures.

Mitral Valve Regurgitation in Klippel-Feil Syndrome With Related Thoracic Deformity.

Klippel-Feil syndrome, characterized by congenital fusion of any 2 or more cervical vertebrae, is a rare disorder in which skeletal and other organ system-related abnormalities have been reported. This article reports a case of mitral valve regurgitation in a patient with Klippel-Feil syndrome and related thoracic deformity who underwent mitral valvuloplasty. Postoperatively, the mitral valve regurgitation disappeared, and there has been no recurrence for 3 years. This case highlights mitral valvuloplasty via median sternotomy as an excellent treatment for mitral valve regurgitation in a patient with thoracic deformity related to Klippel-Feil syndrome.

Anterolateral thoracotomy with partial sternotomy: a feasible approach for treating the complex pathology of the aortic arch.

OBJECTIVES: Our goal was to review our surgical experiences in patients with complex pathologies of the aortic arch who have undergone anterolateral thoracotomy with a partial sternotomy (ALPS). METHODS: From October 2019 to November 2023, a total of 23 patients underwent one-stage repairs of complex pathologies of the aortic arch through the ALPS approach. The mean age was 61.9 ± 16.7 years old. The aortic pathologies were as follows: aorta-related infection in 11 (aorto-oesophageal fistula: 4, graft infection: 6, native aortic infection: 1); aortic dissection in 9 including shaggy aorta in 2, non-dissecting aneurysm in 1, and coarctation of the aorta (CoA) in 2. RESULTS: Eighteen patients underwent aortic replacement from either the sinotubular junction or the ascending aorta to the descending aorta; 1 patient underwent it from the aortic root to the descending aorta (redo Bentall procedure and extensive aortic arch replacement); 3 patients underwent it from the aortic arch between the left carotid artery and left subclavian artery to the descending aorta; and 1 patient underwent a descending aortic replacement. Ten patients underwent omentopexy, latissimus dorsi muscle flap installation or both procedures. The hospital mortality rate was 13.0% (3/23). The overall survival and freedom from aortic events were 73.3%±10.2% and 74.1%±10.2%, respectively, at the 3-year follow-up. There was an absence of aorta-related deaths, and no recurrent infections were identified. CONCLUSIONS: The short-term outcomes using the ALPS approach for the treatment of complex pathologies of the aortic arch were acceptable. Further studies will be required to determine the long-term results.

The prophylactic use of negative-pressure wound therapy after cardiac surgery: a meta-analysis.

Surgical site infections (SSIs) pose a frequent complication in cardiac surgery patients and lead to increased patient discomfort and extended hospitalization. This meta-analysis aimed to evaluate the protective role of single-use negative-pressure wound therapy (sNPWT) devices on closed surgical wounds after cardiac surgery, and explored their potential preventive application across all cardiac surgery patients. A comprehensive literature search was conducted on ScienceDirect, focusing on studies related to "negative pressure wound therapy" or "PICO negative pressure wound therapy" combined with "cardiac surgery" or "sternotomy," published between 2000 and 2022. Inclusion criteria encompassed case-control studies comparing sNPWT with traditional dressings on closed cardiac surgical incisions in adult patients undergoing median sternotomy without immediate postoperative infective complications, with available details on SSIs. A retrospective analysis of cases treated with sNPWT in our centre was also performed. The meta-analysis revealed a protective role of sNPWT, indicating a 44% risk reduction in overall SSIs (odds ratio 0.56) and a 40% risk reduction in deep wound infections (odds ratio 0.60). Superficial wound infections, however, showed non-significant protective effects. A single-centre study aligned with the meta-analysis findings, confirming the efficacy of sNPWT and was included in the meta-analysis. In conclusion, the meta-analysis and the single-centre study collectively support the protective role of negative pressure wound therapy against overall and deep SSIs, suggesting its potential prophylactic use on all cardiac surgery populations.

Early Outcomes of Minimally Invasive Right Anterior Thoracotomy vs. Median Full Sternotomy in Isolated Aortic Valve Replacement: A Propensity Score Analysis.

INTRODUCTION: This study aimed to compare the early postoperative outcomes of right anterior thoracotomy minimally invasive aortic valve replacement (RAT-MIAVR) surgery with those of median full sternotomy aortic valve replacement (MFS-AVR) approach with the goal of identifying potential benefits or drawbacks of each technique. METHODS: This retrospective, observational, cohort study included 476 patients who underwent RAT-MIAVR or MFS-AVR in our hospital from January 2015 to January 2023. Of these, 107 patients (22.5%) underwent RAT-MIAVR, and 369 patients (77.5%) underwent MFS-AVR. Propensity score matching was used to minimize selection bias, resulting in 95 patients per group for analysis. RESULTS: After propensity matching, two groups were comparable in preoperative characteristics. RAT-MIAVR group showed longer cardiopulmonary bypass time (130.24 ± 31.15 vs. 117.75 ± 36.29 minutes, P=0.012), aortic cross-clamping time (76.44 ± 18.00 vs. 68.49 ± 19.64 minutes, P=0.004), and longer operative time than MFS-AVR group (358.47 ± 67.11 minutes vs. 322.42 ± 63.84 minutes, P=0.000). RAT-MIAVR was associated with decreased hospitalization time after surgery, lower postoperative blood loss and drainage fluid, a reduced incidence of mediastinitis, increased left ventricular ejection fraction, and lower pacemaker use compared to MFS-AVR. However, there was no significant difference in the incidence of major complications and in-hospital mortality between the two groups. CONCLUSION: RAT-MIAVR is a feasible and safe alternative procedure to MFS-AVR, with comparable in-hospital mortality and early follow-up. This minimally invasive approach may be a suitable option for patients requiring isolated aortic valve replacement.

Reducing Sternal Wound Infection Rates in Patients Undergoing Cardiothoracic Surgery with Sternotomy.

LOCAL PROBLEM: Sternal wound infections (SWIs), whether superficial or deep, are associated with increased morbidity, mortality, and costs. From 2016 to 2017, our facility saw a 50% decrease in SWIs among patients undergoing cardiothoracic surgery with sternotomy. From 2017 to 2018, however, we identified a 33% increase in SWIs, prompting us to address our cardiac nurses' sternal wound care education and practice. PURPOSE: The purpose of our quality improvement (QI) project was to identify opportunities for improvement in postoperative sternal incision care and to implement evidence-based processes to reduce the incidence of SWIs among cardiothoracic surgery patients. METHODS: A literature review was performed to identify interventions focused on evidence-based SWI reduction. During the first quarter of 2019, our postoperative incision care guidelines were revised and released to staff, a new surgical wound cleansing product was supplied, and RN education was provided. Cardiac nurses were surveyed in April 2019 to identify any remaining knowledge and practice deficits and to assess their adherence to the new guidelines. The survey responses helped us to further improve our nurse education. We also provided periodic nurse reeducation and enhanced patient and family education. All such interventions were implemented by the end of June 2019. RESULTS: Between January and June 2019, we had one SWI. From July 2019 through December 2020, an 18-month period, we experienced zero SWIs. Although beginning in 2021, we saw an increase in SWIs-four in 2021 and five in 2022-our incidence rates remain below 0.5% and we continue to work toward an SWI goal of zero. CONCLUSION: This QI project identified opportunities for improvement, implemented evidence-based strategies for wound care and education, and successfully achieved a zero SWI rate for a period of 18 months.

A novel manual therapy approach for managing acute interscapular pain following median sternotomy for open cardiac surgery: A clinical comparative analysis.

INTRODUCTION: Acute interscapular pain is a frequent postoperative complication observed in patients who have undergone median sternotomy. This study aimed to assess a novel approach to manual therapy utilizing the Regional Interdependence (RI) concept for managing interscapular pain in post-sternotomy patients. MATERIALS AND METHODS: In an observational study, a cohort of 60 consecutively admitted patients undergoing median sternotomy was enrolled. Data collection involved standardized clinical evaluations conducted at specific time points: prior to manual treatment (T0), following five manual treatments (T5), and at post-treatment days 10 (T10) and 30 (T30). The Experimental Group (EG) received manual treatment based on the RI concept, performed in a seated position to accommodate individual clinical conditions and surgical wound considerations. The Control Group (CG) received simulated treatment involving identical exercises to the EG but lacking the physiological or biomechanical stimulation. RESULTS: Among the initial 60 patients, 36 met the inclusion criteria, while 24 were excluded due to one or more exclusion criteria. Treatment outcomes revealed a statistically significant improvement in the EG compared to the CG, not only in terms of pain reduction but also in functional recovery and consequent disability reduction. DISCUSSION: The RI concept emerges as a potentially valuable therapeutic approach for addressing interscapular dysfunction, particularly in highly complex post-sternotomy patients. This study highlights the clinical relevance of the RI concept in the management of interscapular pain and highlights its potential utility in improving patient outcomes in the challenging context of sternotomy surgery.

Efficacy of bilateral catheter superficial parasternal intercostal plane blocks using programmed intermittent bolus for opioid-sparing postoperative analgesia in cardiac surgery with sternotomy: A randomized, double-blind, placebo-controlled trial.

STUDY OBJECTIVE: This study investigated whether catheter superficial parasternal intercostal plane (SPIP) blocks, using a programmed intermittent bolus (PIB) with ropivacaine, could reduce opioid consumption while delivering enhanced analgesia for a period exceeding 48 h following cardiac surgery involving sternotomy. DESIGN: A double-blind, prospective, randomized, placebo-controlled trial. SETTING: University-affiliated tertiary care hospital. PATIENTS: 60 patients aged 18 or older, scheduled for cardiac surgery via sternotomy. INTERVENTIONS: The patients were randomly assigned in a 1:1 ratio to either the ropivacaine or saline group. After surgery, patients received bilateral SPIP blocks for 48 h with 0.4% ropivacaine (20 mL per side) for induction, followed by bilateral SPIP catheters using PIB with 0.2% ropivacaine (8 mL/side, interspersed with a 2-h interval) or 0.9% normal saline following the same administration schedule. All patients were administered patient-controlled analgesia with hydromorphone. MEASUREMENTS: The primary outcome was the cumulative morphine equivalent consumption during the initial 48 h after the surgery. Secondary outcomes included postoperative pain assessment using the Numeric Rating Scale (NRS) at rest and during coughing at designated intervals for three days post-extubation. Furthermore, recovery indicators and ropivacaine plasma levels were diligently documented. MAIN RESULTS: Cumulative morphine consumption within 48 h in ropivacaine group decreased significantly compared to saline group (25.34 ± 31.1 mg vs 76.28 ± 77.2 mg, respectively; 95% CI, -81.9 to -20.0, P = 0.002). The ropivacaine group also reported lower NRS scores at all recorded time points (P < 0.05) and a lower incidence of nausea and vomiting than the saline group (3/29 vs 12/29, respectively; P = 0.007). Additionally, the ropivacaine group showed significant improvements in ambulation (P = 0.018), respiratory exercises (P = 0.006), and self-reported analgesia satisfaction compared to the saline group (P = 0.016). CONCLUSIONS: Bilateral catheter SPIP blocks using PIB with ropivacaine reduced opioid consumption over 48 h, concurrently delivering superior postoperative analgesia in adult cardiac surgery with sternotomy.

Challenging Dogma by Skipping the Emergency Department Thoracotomy: A Propensity Score Matched Analysis of the Trauma Quality Improvement Database.

INTRODUCTION: Survival following emergency department thoracotomy (EDT) for patients in extremis is poor. Whether intervention in the operating room instead of EDT in select patients could lead to improved outcomes is unknown. We hypothesized that patients who underwent intervention in the operating room would have improved outcomes compared to those who underwent EDT. METHODS: We conducted a retrospective review of the Trauma Quality Improvement Program database from 2017 to 2021. All adult patients who underwent EDT, operating room thoracotomy (ORT), or sternotomy as the first form of surgical intervention within 1 h of arrival were included. Of patients without prehospital cardiac arrest, propensity score matching was utilized to create three comparable groups. The primary outcome was survival. Secondary outcomes included time to procedure. RESULTS: There were 1865 EDT patients, 835 ORT patients, and 456 sternotomy patients who met the inclusion criteria. There were 349 EDT, 344 ORT, and 408 sternotomy patients in the matched analysis. On Cox multivariate regression, there was an increased risk of mortality with EDT versus sternotomy (HR 4.64, P < 0.0001), EDT versus ORT (HR 1.65, P < 0.0001), and ORT versus sternotomy (HR 2.81, P < 0.0001). Time to procedure was shorter with EDT versus sternotomy (22 min versus 34 min, P < 0.0001) and versus ORT (22 min versus 37 min, P < 0.0001). CONCLUSIONS: There was an association between sternotomy and ORT versus EDT and improved mortality. In select patients, operative approaches rather than the traditional EDT could be considered.

Outcomes of Minimally Invasive Aortic Valve Replacement in Obese Patients: A Propensity-Matched Study.

INTRODUCTION: Obese patients are at risk of complications after cardiac surgery. The aim of this study is to investigate safety and efficacy of a minimally invasive approach via upper sternotomy in this setting. METHODS: We retrospectively reviewed 203 obese patients who underwent isolated, elective aortic valve replacement between January 2014 and January 2023 - 106 with minimally invasive aortic valve replacement (MIAVR) and 97 with conventional aortic valve replacement (CAVR). To account for baseline differences, a propensity-matching analysis was performed obtaining two balanced groups of 91 patients each. RESULTS: The 30-day mortality rate was comparable between groups (1.1% MIAVR vs. 0% CAVR, P=0.99). MIAVR patients had faster extubation than CAVR patients (6 ± 2 vs. 9 ± 2 hours, P<0.01). Continuous positive airway pressure therapy was less common in the MIAVR than in the CAVR group (3.3% vs. 13.2%, P=0.03). Other postoperative complications did not differ significantly. Intensive care unit stay (1.8 ± 1.2 vs. 3.2 ± 1.4 days, P<0.01), but not hospital stay (6.7 ± 2.1 vs. 7.2 ± 1.9 days, P=0.09), was shorter for MIAVR than for CAVR patients. Follow-up survival was comparable (logrank P-value = 0.58). CONCLUSION: MIAVR via upper sternotomy has been shown to be a safe and effective option for obese patients. Respiratory outcome was promising with shorter mechanical ventilation time and reduced need for post-extubation support. The length of stay in the intensive care unit was reduced. These advantages might be important for the obese patient to whom minimally invasive surgery should not be denied.

Comparison of Multiple Injection Costotransverse Block and Erector Spinae Plane Block for Post-Sternotomy Pain Relief in Pediatric Patients Undergoing Cardiac Surgery: A Prospective Randomized Comparative Study.

OBJECTIVE: The aim of this study was to evaluate the efficacy of ultrasound-guided multiple injection costotransverse block (MICB) and compare it with erector spinae plane block (ESPB) for poststernotomy pain relief in pediatric cardiac surgical patients. DESIGN: A prospective, randomized, double-blind, comparative study. SETTING: At a single institution tertiary referral cardiac center. PARTICIPANTS: A total of 90 children with acyanotic congenital heart disease requiring surgery via sternotomy. INTERVENTIONS: Children were allocated randomly to 1 of the 3 following groups: ESPB (group 1), MICB (group 2), or Control (group 3). Participants in groups 1 and 2 received 4 mg/kg of 0.2% ropivacaine for bilateral ultrasound-guided block after induction of anesthesia. Postoperatively, intravenous paracetamol was used for multimodal analgesia, and fentanyl/tramadol was used for rescue analgesia. MEASUREMENTS AND MAIN RESULTS: The modified objective pain score (MOPS) was evaluated at 0, 1, 2, 4, 6, 8, 10, and 12 hours postextubation. After all exclusions, 84 patients were analyzed. The MOPS score was found to be significantly lower in ESPB and MICB groups compared to the control group until 10 hours postextubation (p < 0.05), with no statistically significant difference at the 12th hour (p = 0.2198). The total intraoperative fentanyl consumption (p = 0.0005), need for fentanyl supplementation on incision (p < 0.0001), and need for rescue opioid requirement in the postoperative period (p = 0.034) were significantly lower in both the ESPB and MICB groups than the control group. There were no statistically significant differences in both primary and secondary outcomes between the ESPB and MICB groups. CONCLUSION: Ultrasound-guided MICB was effective and comparable to ESPB for post-sternotomy pain management in pediatric cardiac surgical patients.

Clinical Outcomes of Erector Spinae Plane Block for Midline Sternotomy in Cardiac Surgery: A Systematic Review and Meta-Analysis.

OBJECTIVES: To evaluate the benefit of single-shot erector spinae plane block (ESPB) on pain at postoperative hours 4 and 12, duration of mechanical ventilation, hospital length of stay, intensive care unit (ICU) length of stay, cumulative postoperative opioid usage, and incidence of postoperative nausea and vomiting (PONV) after cardiac surgery via sternotomy DESIGN: A systematic review and meta-analysis of randomized controlled trials and prospective clinical trials. SETTING: Studies were identified through the search of PubMed and EMBASE on July 19, 2023. PARTICIPANTS: Adults and children undergoing cardiac surgery via sternotomy. INTERVENTIONS: Single-shot ESPB versus standard-of-care analgesia. MEASUREMENTS AND MAIN RESULTS: A systematic review and meta-analysis of 10 studies (N = 695 patients). The single-shot ESPB arm exhibited statistically significant reductions in pain score at postoperative hour 4 (standardized mean difference [SMD] -2.95, 95% CI -5.86 to -0.04, p = 0.0466), duration of mechanical ventilation (SMD -1.23, 95% CI -2.21 to -0.24, p = 0.0145), cumulative postoperative opioid usage (SMD -1.48, 95% CI -2.46 to -0.49, p = 0.0033), and PONV incidence (risk ratio 0.4358, 95% CI 0.2105-0.9021, p = 0.0252). The single-shot ESPB arm did not exhibit a statistically significant reduction in pain score at postoperative hour 12, length of hospital stay, and length of ICU stay. CONCLUSIONS: Single-shot ESPB improves near-term clinical outcomes in patients undergoing cardiac surgery via sternotomy. More randomized controlled trials are needed to validate these findings.