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1.
J Clin Anesth ; 95: 111470, 2024 Aug.
Article in English | MEDLINE | ID: mdl-38604047

ABSTRACT

STUDY OBJECTIVE: To investigate the timing of peak blood concentrations and potential toxicity when using a combination of plain and liposomal bupivacaine for thoracic fascial plane blocks. DESIGN: Pharmacokinetic analysis. SETTING: Operating room. PATIENTS: Eighteen adult patients undergoing robotically-assisted mitral valve surgery. INTERVENTIONS: Ultrasound-guided pecto-serratus and serratus anterior plane blocks using a mixture of 0.5% bupivacaine HCl up to 2.5 mg/kg and liposomal bupivacaine up to 266 mg. MEASUREMENTS: Arterial plasma bupivacaine concentration. MAIN RESULTS: Samples from 13 participants were analyzed. There was substantial inter-patient variability in plasma concentrations. A geometric mean maximum bupivacaine concentration was 1492 ng/ml (range 660 to 4650 ng/ml) at median time of 30 min after injection. In 4/13 (31%) patients, plasma bupivacaine concentrations exceeded our predefined 2000 ng/ml toxic threshold. A second much smaller peak was observed about 32 h after the injection. No obvious signs of local anesthetic toxicity were observed. CONCLUSIONS: Combined injection of plain and liposomal bupivacaine for pecto-serratus/serratus anterior plane blocks produced a biphasic pattern, with the highest arterial plasma concentrations observed within 30 min. Maximum concentrations exceeded the potential toxic threshold in nearly a third of patients, but without clinical evidence of toxicity. Clinicians should not assume that routine combinations of plain and liposomal bupivacaine for thoracic fascial plane blocks are inherently safe.


Subject(s)
Anesthetics, Local , Bupivacaine , Liposomes , Mitral Valve , Nerve Block , Robotic Surgical Procedures , Ultrasonography, Interventional , Humans , Bupivacaine/administration & dosage , Bupivacaine/blood , Bupivacaine/pharmacokinetics , Anesthetics, Local/administration & dosage , Anesthetics, Local/blood , Anesthetics, Local/pharmacokinetics , Male , Female , Middle Aged , Nerve Block/methods , Liposomes/administration & dosage , Mitral Valve/surgery , Adult , Robotic Surgical Procedures/methods , Robotic Surgical Procedures/adverse effects , Aged
2.
J Cardiothorac Vasc Anesth ; 38(5): 1103-1111, 2024 May.
Article in English | MEDLINE | ID: mdl-38365466

ABSTRACT

OBJECTIVES: To identify trends in the reporting of intraoperative transesophageal echocardiographic (TEE) data in the Society of Thoracic Surgeons (STS) Adult Cardiac Surgery Database (ACSD) and the Adult Cardiac Anesthesiology (ACA) module by period, practice type, and geographic distribution, and to elucidate ongoing areas for practice improvement. DESIGN: A retrospective study. SETTING: STS ACSD. PARTICIPANTS: Procedures reported in the STS ACSD between July 2017 and December 2021 in participating programs in the United States. INTERVENTIONS: None MEASUREMENTS AND MAIN RESULTS: Intraoperative TEE is reported for 73% of all procedures in ACSD. Although the intraoperative TEE data reporting rate increased from 2017 to 2021 for isolated coronary artery bypass graft surgery, it remained low at 62.2%. The reporting of relevant echocardiographic variables across a wide range of procedures has steadily increased over the study period but also remained low. The reporting in the ACA module is high for most variables and across all anesthesia care models; however, the overall contribution of the ACA module to the ACSD remains low. CONCLUSIONS: This progress report suggests a continued need to raise awareness regarding current practices of reporting intraoperative TEE in the ACSD and the ACA, and highlights opportunities for improving reporting and data abstraction.


Subject(s)
Cardiac Surgical Procedures , Thoracic Surgery , Adult , Humans , United States/epidemiology , Retrospective Studies , Cardiac Surgical Procedures/methods , Coronary Artery Bypass , Echocardiography, Transesophageal/methods
3.
J Am Soc Echocardiogr ; 37(6): 626-633, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38336021

ABSTRACT

Improved strategies in aortic valve-preserving operations appreciate the dynamic, three-dimensional complexity of the aortic root and its valve. This depends not only on detailed four-dimensional imaging of the planar dimensions of the aortic root but also on quantitative assessment of the valvar leaflets and their competency. The zones of apposition and resulting hemodynamic ventriculoarterial junction formed in diastole determine valvar competency. Current understanding and assessment of this junction is limited, often relying on intraoperative direct surgical inspection. However, this direct inspection itself is limited by evaluation in a nonhemodynamic state with limited field of view. In this review, we discuss the anatomy of the aortic root, including its hemodynamic junction. We review current echocardiographic approaches toward interrogating the incompetent aortic valve for presurgical planning. Furthermore, we introduce and standardize a complementary approach to assessing this hemodynamic ventriculoarterial junction by three-dimensional echocardiography to further personalize presurgical planning for aortic valve surgery.


Subject(s)
Aortic Valve , Echocardiography, Three-Dimensional , Humans , Echocardiography, Three-Dimensional/methods , Aortic Valve/diagnostic imaging , Aortic Valve/surgery , Heart Ventricles/diagnostic imaging , Heart Ventricles/physiopathology , Hemodynamics/physiology , Perioperative Care/methods , Aorta/diagnostic imaging , Aorta/surgery
4.
J Cardiothorac Vasc Anesth ; 38(2): 576-580, 2024 Feb.
Article in English | MEDLINE | ID: mdl-38072717

ABSTRACT

Cor triatriatum is a rare congenital heart defect that occurs when a fibromuscular membrane divides the atrium into two chambers, which may impair blood flow to the ventricle. When it does, the symptoms usually manifest during infancy or early childhood. In this E-challenge, though, the case of a 40-year-old man is reviewed whose symptoms of shortness of breath progressed over the years and were attributed to the diminished mitral valve inflow due to the restricted cor triatriatum sinister associated with pulmonary hypertension, tachycardia-bradycardia syndrome, and atrial fibrillation. Despite routine preoperative evaluation, intraoperative transesophageal echocardiography was used to more accurately evaluate cor triatriatum sinister's morphology, hemodynamic significance, and associated anomalies.


Subject(s)
Cor Triatriatum , Male , Humans , Child, Preschool , Adult , Cor Triatriatum/complications , Cor Triatriatum/diagnostic imaging , Cor Triatriatum/surgery , Echocardiography , Echocardiography, Transesophageal , Heart Atria , Mitral Valve/diagnostic imaging , Mitral Valve/surgery
5.
J Cardiothorac Vasc Anesth ; 38(3): 616-625, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38087669

ABSTRACT

The Intersocietal Accreditation Commission (IAC) is a nonprofit accrediting organization committed to ensuring the quality of diagnostic imaging and related procedures. It comprises a collaboration of stakeholders spanning numerous medical professionals and specialties. In a recent initiative, IAC Echocardiography introduced a new accreditation specifically for Perioperative Transesophageal Echocardiography (PTE). This accreditation process is anchored in rigorous clinical peer review to ensure diagnostic quality and report accuracy, thus maintaining high standards of medical care. The authors present the inaugural 4 sites to achieve IAC accreditation for PTE, which have collaborated to share their experiences in achieving this accreditation. This review endeavors to offer actionable insights and proven solutions to navigate the accreditation journey for others. Mirroring the IAC Standards and Guidelines for PTE accreditation, this review is divided into three pivotal sections as follows: (1) organization of a perioperative echocardiography service, including stakeholder engagement to facilitate the application for accreditation; (2) performance of examinations and reporting; and (3) instituting quality improvement strategies and establishing a robust program. The pursuit of accreditation in PTE is to transcend a mere compliance exercise. It signifies a dedication to excellence, continual growth, and, above all, to the well-being of patients.


Subject(s)
Accreditation , Echocardiography, Transesophageal , Humans , Echocardiography , Quality Improvement
6.
Anesth Analg ; 138(5): 1003-1010, 2024 May 01.
Article in English | MEDLINE | ID: mdl-37733624

ABSTRACT

BACKGROUND: Arterial hyperoxemia may cause end-organ damage secondary to the increased formation of free oxygen radicals. The clinical evidence on postoperative lung toxicity from arterial hyperoxemia during cardiopulmonary bypass (CPB) is scarce, and the effect of arterial partial pressure of oxygen (Pa o2 ) during cardiac surgery on lung injury has been underinvestigated. Thus, we aimed to examine the relationship between Pa o2 during CPB and postoperative lung injury. Secondarily, we examined the relationship between Pa o2 and global (lactate), and regional tissue malperfusion (acute kidney injury). We further explored the association with regional tissue malperfusion by examining markers of cardiac (troponin) and liver injury (bilirubin). METHODS: This was a retrospective cohort study including patients who underwent elective cardiac surgeries (coronary artery bypass, valve, aortic, or combined) requiring CPB between April 2015 and December 2021 at a large quaternary medical center. The primary outcome was postoperative lung function defined as the ratio of Pa o2 to fractional inspired oxygen concentration (F io2 ); P/F ratio 6 hours following surgery or before extubation. The association between CPB in-line sample monitor Pa o2 and primary, secondary, and exploratory outcomes was evaluated using linear or logistic regression models adjusting for available baseline confounders. RESULTS: A total of 9141 patients met inclusion and exclusion criteria, and 8429 (92.2%) patients had complete baseline variables available and were included in the analysis. The mean age of the sample was 64 (SD = 13), and 68% were men (n = 6208). The time-weighted average (TWA) of in-line sample monitor Pa o2 during CPB was weakly positively associated with the postoperative P/F ratio. With a 100-unit increase in Pa o2 , the estimated increase in postoperative P/F ratio was 4.61 (95% CI, 0.71-8.50; P = .02). Our secondary analysis showed no significant association between Pa o2 with peak lactate 6 hours post CPB (geometric mean ratio [GMR], 1.01; 98.3% CI, 0.98-1.03; P = .55), average lactate 6 hours post CPB (GMR, 1.00; 98.3% CI, 0.97-1.03; P = .93), or acute kidney injury by Kidney Disease Improving Global Outcomes (KDIGO) criteria (odds ratio, 0.91; 98.3% CI, 0.75-1.10; P = .23). CONCLUSIONS: Our investigation found no clinically significant association between Pa o2 during CPB and postoperative lung function. Similarly, there was no association between Pa o2 during CPB and lactate levels, postoperative renal function, or other exploratory outcomes.


Subject(s)
Acute Kidney Injury , Lung Injury , Male , Humans , Female , Cardiopulmonary Bypass/adverse effects , Retrospective Studies , Lung , Acute Kidney Injury/diagnosis , Acute Kidney Injury/etiology , Oxygen , Lactates , Postoperative Complications/diagnosis , Postoperative Complications/etiology
8.
Br J Anaesth ; 130(6): 786-794, 2023 06.
Article in English | MEDLINE | ID: mdl-37055276

ABSTRACT

BACKGROUND: Minimally invasive cardiac surgery provokes substantial pain and therefore analgesic consumption. The effect of fascial plane blocks on analgesic efficacy and overall patient satisfaction remains unclear. We therefore tested the primary hypothesis that fascial plane blocks improve overall benefit analgesia score (OBAS) during the initial 3 days after robotically assisted mitral valve repair. Secondarily, we tested the hypotheses that blocks reduce opioid consumption and improve respiratory mechanics. METHODS: Adults scheduled for robotically assisted mitral valve repairs were randomised to combined pectoralis II and serratus anterior plane blocks or to routine analgesia. The blocks were ultrasound-guided and used a mixture of plain and liposomal bupivacaine. OBAS was measured daily on postoperative Days 1-3 and were analysed with linear mixed effects modelling. Opioid consumption was assessed with a simple linear regression model and respiratory mechanics with a linear mixed model. RESULTS: As planned, we enrolled 194 patients, with 98 assigned to blocks and 96 to routine analgesic management. There was neither time-by-treatment interaction (P=0.67) nor treatment effect on total OBAS over postoperative Days 1-3 with a median difference of 0.08 (95% confidence interval [CI]: -0.50 to 0.67; P=0.69) and an estimated ratio of geometric means of 0.98 (95% CI: 0.85-1.13; P=0.75). There was no evidence of a treatment effect on cumulative opioid consumption or respiratory mechanics. Average pain scores on each postoperative day were similarly low in both groups. CONCLUSIONS: Serratus anterior and pectoralis plane blocks did not improve postoperative analgesia, cumulative opioid consumption, or respiratory mechanics during the initial 3 days after robotically assisted mitral valve repair. CLINICAL TRIAL REGISTRATION: NCT03743194.


Subject(s)
Cardiac Surgical Procedures , Robotic Surgical Procedures , Adult , Humans , Analgesics, Opioid , Mitral Valve/surgery , Analgesics/therapeutic use , Pain/drug therapy , Pain, Postoperative/prevention & control , Pain, Postoperative/drug therapy
9.
Ann Thorac Surg ; 116(1): 164-171, 2023 07.
Article in English | MEDLINE | ID: mdl-36935030

ABSTRACT

BACKGROUND: Postoperative pulmonary complications increase mortality after cardiac surgery. Conventional ultrafiltration may reduce pulmonary complications by removing mediators of bypass-induced inflammation and countering hemodilution. We tested the primary hypothesis that conventional ultrafiltration reduces postoperative pulmonary complications, and secondarily, improves early pulmonary function assessed by the ratio of PaO2 to fractional inspired oxygen concentration. METHODS: This retrospective analysis compared the incidence of postoperative pulmonary complications in adult patients who underwent cardiac surgery, with and without the use of conventional ultrafiltration, by using logistic regression with adjustment for confounding variables. The primary outcome was a composite of reintubation, prolonged ventilation, pneumonia, or pleural effusion. Secondarily, we examined early postoperative lung function using a quantile regression model. We also explored whether red blood cell transfusion differed between groups. RESULTS: Of 8026 patients, 1043 (13%) received conventional ultrafiltration. After adjustment for confounding variables, the incidence of the composite primary outcome was higher in the conventional ultrafiltration group (12.1% vs 9.9%; P = .03), with an estimated odds ratio of 1.25 (95% CI, 1.02-1.53; P = .03). The median (quantiles) PaO2-to-fractional inspired oxygen concentration ratio was 373 (303-433) vs 368 (303-428), with the estimated adjusted difference in medians of 5 (95% CI, -5.9 to 16; P = .37). The estimated odds ratio of intraoperative transfusion was 1.38 (95% CI, 1.19-1.60; P < .0001) and for postoperative transfusion was 1.30 (95% CI, 1.14-1.49; P = .0001). CONCLUSIONS: Use of conventional ultrafiltration was not associated with a reduction in the composite of postoperative pulmonary complications or improved early pulmonary function. We found no evidence of benefit from use of conventional ultrafiltration during cardiac surgery.


Subject(s)
Cardiac Surgical Procedures , Lung , Adult , Humans , Retrospective Studies , Postoperative Complications/epidemiology , Postoperative Complications/prevention & control , Postoperative Complications/etiology , Cardiac Surgical Procedures/adverse effects , Oxygen
10.
Ann Card Anaesth ; 25(4): 505-513, 2022.
Article in English | MEDLINE | ID: mdl-36254918

ABSTRACT

Context: Global longitudinal strain (GLS) measured by speckle-tracking echocardiography demonstrates excellent prognostic ability in predicting major adverse cardiac events after cardiac surgery. However, the optimal timing of intraoperative GLS measurement that provides the best prognostic value is unclear. Aim: Our goal was to evaluate whether GLS measured prior to cardiopulmonary bypass (pre-CPB GLS), following CPB (post-CPB GLS), or change in GLS provides the strongest association with postoperative complications. Setting and Design: Post hoc analysis of prospectively collected data from a clinical trial (NCT01187329). 72 patients with aortic stenosis undergoing elective AVR ± coronary artery bypass grafting between January 2011 and August 2013. Material and Methods: Myocardial deformation analysis from standardized transesophageal echocardiographic examinations were performed after anesthetic induction and chest closure. We evaluated the association between pre-CPB GLS, post-CPB GLS, and change in GLS (percent change from pre-CPB baseline) with postoperative atrial fibrillation and hospitalization >7 days. The association of post-CPB GLS with duration of mechanical ventilation, N-terminal pro-BNP (NT-proBNP) and troponin T were also assessed. Statistical Analysis: Multivariable logistic regression. Results: Risk-adjusted odds (OR[97.5%CI] of prolonged hospitalization increased an estimated 27% (1.27[1.01 to 1.59];Padj =0.035) per 1% decrease in absolute post-CPB GLS. Mean[98.3%CI] NT-proBNP increased 98.4[20 to 177]pg/mL; Padj =0.008), per 1% decrease in post-CPB GLS. Pre-CPB GLS or change in GLS were not associated with any outcomes. Conclusions: Post-CPB GLS provides the best prognostic value in predicting postoperative outcomes. Measuring post-CPB GLS may improve risk stratification and assist in future study design and patient outcome research.


Subject(s)
Anesthetics , Cardiopulmonary Bypass , Humans , Predictive Value of Tests , Prognosis , Stroke Volume , Troponin T , Ventricular Function, Left
11.
Semin Cardiothorac Vasc Anesth ; 26(3): 226-236, 2022 Sep.
Article in English | MEDLINE | ID: mdl-35848424

ABSTRACT

Introduction. We examined whether intraoperative assessment of left ventricular (LV) twist mechanics is feasible with transesophageal echocardiography (TEE). We then explored whether twist mechanics were altered by hemodynamic conditions or patient comorbidities. Methods. In this sub-analysis of clinical trial data, transgastric short-axis echocardiographic images of the LV base and apex were collected in patients having aortic valve replacement (AVR) at baseline and end of surgery. Transvalvular gradients and LV systolic and diastolic function were assessed using two-dimensional (2D) and Doppler echocardiography. 2D speckle-tracking echocardiography was used for off-line analysis of LV twist, twisting rate, and untwisting rate. We examined the intraoperative change in twist mechanics before and after AVR. LV twist mechanics were also explored by diabetic status, need for coronary artery bypass grafting (CABG), and use of epinephrine/norepinephrine. Results. Of 40 patients, 16 patients had acceptable TEE images for off-line LV twist analysis. Baseline median [Q1, Q3] LV twist was 12 [7, 16]°, twisting rate was 72 [41, 97]°/sec, and untwisting rate was -91 [-154, -56]°/s. Median [Q1, Q3] change in LV twist at end of surgery was -2 [-5, 3]°, twisting rate was 7 [-33, 31]°/s, and untwisting rate was 0 [-11, 43]°/s. No difference was noted between diabetic and non-diabetic patients or AVR and AVR-CABG patients. Conclusion. LV twist was augmented in patients with aortic stenosis, though twist indices were not affected by reduced afterload, diabetes, or coronary artery disease. Intraoperative assessment of twist mechanics may provide unique information on LV systolic and diastolic function, though fewer than 50% of TEE examinations successfully assessed twist. Clinical Trial Registry. This work is a sub-analysis of a clinical trial, registered on ClinicalTrials.gov on August 19, 2010 (NCT01187329), Andra Duncan, Principal Investigator.


Subject(s)
Aortic Valve , Ventricular Function, Left , Aortic Valve/diagnostic imaging , Aortic Valve/surgery , Echocardiography, Doppler , Feasibility Studies , Heart Ventricles/diagnostic imaging , Humans
12.
J Thorac Cardiovasc Surg ; 164(2): 585-595.e5, 2022 08.
Article in English | MEDLINE | ID: mdl-33431210

ABSTRACT

OBJECTIVE: Perioperative right ventricular function is a significant predictor of patient outcomes after cardiac surgery. This prospective study aimed to identify perioperative factors associated with reduced intraoperative right ventricular function. METHODS: Right ventricular function was assessed at the beginning and end of surgery by standardized transesophageal echocardiographic measurements, including tricuspid annular plane systolic excursion, peak systolic longitudinal right ventricular strain, and fractional area change, in 109 adult patients undergoing cardiac surgery at Cleveland Clinic. Associations between right ventricular function and 33 patient characteristics and perioperative factors were analyzed by random forest machine learning. The relative importance of each variable in predicting right ventricular function at the end of surgery was determined. RESULTS: Longer aortic clamp duration and lower baseline right ventricular function were highly important variables for predicting worse right ventricular function measured by tricuspid annular plane systolic excursion, right ventricular strain, and fractional area change at the end of surgery. For example, right ventricular function after longer aortic clamp times of 100-120 minutes was worse (median [Q1, Q3] tricuspid annular plane systolic excursion 1.0 [0.9, 1.1] cm) compared with right ventricular function after shorter aortic clamp times of 50 to 70 minutes (tricuspid annular plane systolic excursion 1.5 [1.3, 1.7]; P = .001). Right ventricular strain at the end of surgery was reduced in patients with worse baseline right ventricular function compared with those with higher baseline right ventricular function (end of surgery right ventricular strain in lowest quartile -13.7 [-16.6, -12.4]% vs highest quartile -17.7 [-18.6, -15.3]% of baseline right ventricular function; P = .043). CONCLUSIONS: Intraoperative decline in right ventricular function is associated with longer aortic clamp time and worse baseline right ventricular function. Efforts to optimize these factors, including better myocardial protection strategies, may improve perioperative right ventricular function.


Subject(s)
Cardiac Surgical Procedures , Ventricular Dysfunction, Right , Adult , Cardiac Surgical Procedures/adverse effects , Echocardiography, Transesophageal , Heart Ventricles , Humans , Prospective Studies , Ventricular Dysfunction, Right/diagnostic imaging , Ventricular Dysfunction, Right/etiology , Ventricular Dysfunction, Right/prevention & control , Ventricular Function, Right
13.
Catheter Cardiovasc Interv ; 98(3): E436-E443, 2021 09.
Article in English | MEDLINE | ID: mdl-33512085

ABSTRACT

BACKGROUND: Monitored anesthesia care (MAC) has become more widely used during transcatheter aortic valve replacement (TAVR) to avoid the complications of general anesthesia (GA). METHODS: We included consecutive patients who underwent transfemoral-TAVR at our institution between January 2012 and April 2017. We compared outcomes with GA versus MAC. RESULTS: Of 998 patients, MAC was used in 43.9%. MAC was associated with shorter procedural time (96.9 ± 30.9 vs. 135 ± 64.6 mins; p < .001), fluoroscopy time (20.4 ± 8.9 vs. 29 ± 18.7 mins; p < .001), lower contrast volume (45.5 ± 27 vs. 60.4 ± 43 cc; p < .001), and decreased radiation exposure (12,869 ± 8,099 vs. 20,630 ± 16,276 cGy-cm2 ; p < .001). Patients who underwent MAC had a briefer median (IQR) intensive care unit stay [23.3 (21-24) vs. 23.4 (20.8-26) hrs; p < .001], and hospital stay [2 (2, 3) vs. 3 (2-6) days; p < .001], and were more frequently discharged to home (93.4% vs. 82.9%; p < .001). MAC was associated with lower mortality at 30 days (0.5% vs. 2.9%; log-rank p = .012; adjHR 0.22, 95% CI 0.06-0.82; p = .024), but not at 1 year (11.7% vs. 14.6%; log-rank p = .157) or 3 years (36.8% vs. 38.4%; log-rank p = 0.433). There were no differences in major adverse cardiac and cerebrovascular events (MACCE) at either 30 days (4.6% vs. 9.3%; log-rank p = .14) or 1 year (21.1% vs. 21.5%; log-rank p = .653). Similar findings were seen among patients who received newer-generation SAPIEN-3 valves. CONCLUSION: Utilizing MAC and omitting intraprocedural transesophageal echocardiography during TAVR seems to be more efficient without compromising safety. Better TAVR outcomes can be achieved with newer generation valves without needing GA.


Subject(s)
Aortic Valve Stenosis , Transcatheter Aortic Valve Replacement , Anesthesia, General/adverse effects , Aortic Valve/diagnostic imaging , Aortic Valve/surgery , Aortic Valve Stenosis/diagnostic imaging , Aortic Valve Stenosis/surgery , Fluoroscopy , Humans , Length of Stay , Retrospective Studies , Risk Factors , Transcatheter Aortic Valve Replacement/adverse effects , Treatment Outcome
14.
J Cardiothorac Vasc Anesth ; 35(5): 1404-1409, 2021 May.
Article in English | MEDLINE | ID: mdl-33067088

ABSTRACT

OBJECTIVE: Assess the efficacy of adding liposomal bupivacaine (LB) to bupivacaine-containing intercostal nerve blocks (ICNBs) to improve analgesia and decrease opioid consumption and hospital length of stay compared with bupivacaine-only ICNBs. DESIGN: This retrospective, observational investigation compared pain intensity scores and cumulative opioid consumption within the first 72 postoperative hours in patients who received ICNBs with bupivacaine plus LB (LB group) versus bupivacaine only (control group) after minimally invasive anatomic pulmonary resection. LB was tested for noninferiority on pain scores and opioid consumption. If LB was noninferior, superiority of LB was tested on both outcomes. SETTING: Academic tertiary care medical center. PARTICIPANTS: Adult patients undergoing minimally invasive anatomic pulmonary resection. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: For the secondary analysis, hospital length of stay was compared through the Cox regression model. Of 396 patients, 178 (45%) received LB and 218 (55%) did not. The mean (standard deviation) pain score was three (one) in the LB group and three (one) in the control group, with a difference of -0.10 (97.5% confidence interval [-0.39 to 0.18]; p = 0.41). The mean (standard deviation) cumulative opioid consumption (intravenous morphine equivalents) was 198 (208) mg in the LB group and 195 (162) mg in the control group. Treatment effect in opioid consumption was estimated at a ratio of geometric mean of 0.94 (97.5% confidence interval [0.74-1.20]; p = 0.56). Pain control and opioid consumption were noninferior with LB but not superior. Hospital discharge was not different between groups. CONCLUSIONS: LB with bupivacaine in ICNBs did not demonstrate superior postoperative analgesia or affect the rate of hospital discharge.


Subject(s)
Thoracic Surgery , Adult , Analgesics, Opioid , Anesthetics, Local , Bupivacaine , Humans , Pain, Postoperative/diagnosis , Pain, Postoperative/drug therapy , Pain, Postoperative/prevention & control , Retrospective Studies
17.
Anesth Analg ; 131(5): 1491-1499, 2020 11.
Article in English | MEDLINE | ID: mdl-33079872

ABSTRACT

BACKGROUND: Increased pulse pressure has been associated with adverse cardiovascular events, cardiac and all-cause mortality in surgical and nonsurgical patients. Whether increased pulse pressure worsens myocardial injury and dysfunction after cardiac surgery, however, has not been fully characterized. We examined whether cardiac surgical patients with elevated pulse pressure are more susceptible to myocardial injury, dysfunction, cardiac-related complications, and mortality. Secondarily, we examined whether pulse pressure was a stronger predictor of the outcomes than systolic blood pressure. METHODS: This retrospective observational study included adult cardiac surgical patients having elective isolated on-pump coronary artery bypass grafting (CABG) between 2010 and 2017 at the Cleveland Clinic. The association between elevated pulse pressure and (1) perioperative myocardial injury, measured by postoperative troponin-T concentrations, (2) perioperative myocardial dysfunction, assessed by the requirement for perioperative inotropic support using the modified inotropic score (MIS), and (3) cardiovascular complications assessed by the composite outcome of postoperative mechanical circulatory assistance or in-hospital mortality were assessed using multivariable linear regression models. Secondarily, the association between pulse pressure versus systolic blood pressure and the outcomes were compared. RESULTS: Of 2704 patients who met the inclusion/exclusion criteria, complete data were available for 2003 patients. Increased pulse pressure over 40 mm Hg was associated with elevated postoperative troponin-T level, estimated to be 1.05 (97.5% confidence interval [CI], 1.02-1.09; P < .001) times higher per 10 mm Hg increase in pulse pressure. The association between pulse pressure and myocardial dysfunction and the composite outcome of cardiovascular complications and death were not significant. There was no difference in the association with pulse pressure versus systolic blood pressure and troponin-T concentrations. CONCLUSIONS: Elevated preoperative pulse pressure was associated with a modest increase in postoperative troponin-T concentrations, but not postoperative cardiovascular complications or in-hospital mortality in patients having CABG. Pulse pressure was not a better predictor than systolic blood pressure.


Subject(s)
Blood Pressure , Coronary Artery Bypass/adverse effects , Heart Injuries/epidemiology , Heart Injuries/etiology , Hypertension/complications , Postoperative Complications/epidemiology , Aged , Female , Hospital Mortality , Humans , Hypertension/diagnosis , Male , Middle Aged , Predictive Value of Tests , Preoperative Period , Retrospective Studies , Treatment Outcome , Troponin T/blood
18.
J Cardiothorac Vasc Anesth ; 34(7): 1985-1989, 2020 Jul.
Article in English | MEDLINE | ID: mdl-32144057

ABSTRACT

Lung transplantation is the definitive treatment for end-stage lung disease. The pulmonary venous anastomosis has the potential for significant obstructive complications that can lead to considerable morbidity and mortality. The use of intraoperative transesophageal echocardiography, including color-flow and spectral Doppler, is instrumental in evaluating the pulmonary veins after lung transplantation. In this E-challenge, a case of intraoperative pulmonary venous obstruction after bilateral lung transplantation is described, the echocardiographic principles required to evaluate the pulmonary veins and screen for complications are reviewed, and when intervention may be required is discussed.


Subject(s)
Lung Transplantation , Pulmonary Veins , Blood Flow Velocity , Echocardiography, Transesophageal , Humans , Lung/diagnostic imaging , Lung Transplantation/adverse effects , Pulmonary Circulation , Pulmonary Veins/diagnostic imaging , Pulmonary Veins/surgery
19.
Anesth Analg ; 131(1): 127-135, 2020 07.
Article in English | MEDLINE | ID: mdl-32032103

ABSTRACT

Optimal analgesia is an integral part of enhanced recovery after surgery (ERAS) programs designed to improve patients' perioperative experience and outcomes. Regional anesthetic techniques in a form of various fascial plane chest wall blocks are an important adjunct to the optimal postoperative analgesia in cardiac surgery. The most common application of fascial plane chest wall blocks has been for minimally invasive cardiac surgical procedures. An abundance of case reports has been described in the anesthesia literature and reports appear promising, yet higher-level safety and efficacy evidence is lacking. Those providing anesthesia for minimally invasive cardiac procedures should become familiar with fascial plane anatomy and block techniques to be able to provide enhanced postsurgical analgesia and facilitate faster functional recovery and earlier discharge. The purpose of this review is to provide an overview of contemporary fascial plane chest wall blocks used for analgesia in cardiothoracic surgery. Specifically, we focus on relevant anatomic considerations and technical descriptions including pectoralis I and II, serratus anterior, pectointercostal fascial, transverse thoracic muscle, and erector spine plane blocks. In addition, we provide a summary of reported local anesthetic doses used for these blocks and a current state of the literature investigating their efficacy, duration, and comparisons with standard practices. Finally, we hope to stimulate further research with a focus on delineating mechanisms of action of novel emerging blocks, appropriate dosing regimens, and subsequent analysis of their effect on patient outcomes.


Subject(s)
Anesthesia, Local/methods , Cardiac Surgical Procedures/adverse effects , Fascia/drug effects , Nerve Block/methods , Pain Management/methods , Thoracic Wall/drug effects , Anesthetics, Local/administration & dosage , Fascia/innervation , Humans , Pain, Postoperative/etiology , Pain, Postoperative/prevention & control , Thoracic Wall/innervation
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