scholarly journals Effect of Mechanical Ventilation During Cardiopulmonary Bypass On End-Expiratory Lung Volume in The Perioperative Period of Cardiac Surgery

2021 ◽  
Author(s):  
Lea Trancart ◽  
Nathalie Rey ◽  
Vincent Scherrer ◽  
Véronique Wurtz ◽  
Fabrice Bauer ◽  
...  
Keyword(s):  
Mechanical Ventilation ◽  
Cardiac Surgery ◽  
Cardiopulmonary Bypass ◽  
Lung Volume ◽  
Perioperative Period ◽  
Tertiary Teaching ◽  
Significant Difference ◽  
Residual Capacity ◽  
Tertiary Teaching Hospital ◽  
The Impact

Abstract Background Many studies explored the impact of ventilation during cardiopulmonary bypass period. However, its effect on Functional residual capacity or End Expiratory Lung Volume (EELV) has not been specifically studied. Our objective was to compare the effect of two ventilation strategies during cardiopulmonary bypass (CPB) on EELV. Methods observational monocenter study in a tertiary teaching hospital. Adult patients undergoing on-pump cardiac surgery by sternotomy were included and ventilated on the GE Carescape R860® ventilator. Maintenance of ventilation during CPB was left to the discretion of the medical team, with division between "ventilated" and "non-ventilated" groups afterwards. Iterative per and postoperative measurements of EELV were carried out by nitrogen washin-washout technique. Results 40 patients were included, 20 in each group. EELV was not significantly different between the ventilated versus non-ventilated groups at the end of surgery (1796±586ml vs. 1844±524ml; p=1). No significant difference between the two groups was observed on oxygenation, duration of mechanical ventilation, need postoperative respiratory support, occurrence of pneumopathy and radiographic atelectasis. Conclusion Maintaining mechanical ventilation during CPB does not seem to allow a better preservation of EELV in our population.

scholarly journals Severity of hyperoxia as a risk factor in patients undergoing on-pump cardiac surgery

2017 ◽  
Vol 24 (3) ◽  
pp. 153-158
Author(s):  
Gabrielius Jakutis ◽  
Ieva Norkienė ◽  
Donata Ringaitienė ◽  
Tomas Jovaiša
Keyword(s):  
Mechanical Ventilation ◽  
Cardiac Surgery ◽  
Cardiopulmonary Bypass ◽  
Hospital Stay ◽  
Prolonged Mechanical Ventilation ◽  
Length Of Hospital Stay ◽  
Infectious Complications ◽  
Research Database ◽  
Elective Cardiac Surgery ◽  
The Impact

Background. Hyperoxia has long been perceived as a desirable or at least an inevitable part of cardiopulmonary bypass. Recent evidence suggest that it might have multiple detrimental effects on patient homeostasis. The aim of the study was to identify the determinants of supra-physiological values of partial oxygen pressure during on-pump cardiac surgery and to assess the impact of hyperoxia on clinical outcomes. Materials and methods. Retrospective data analysis of the institutional research database was performed to evaluate the effects of hyperoxia in patients undergoing elective cardiac surgery with cardiopulmonary bypass, 246 patients were included in the final analysis. Patients were divided in three groups: mild hyperoxia (MHO, PaO2 100–199 mmHg), moderate hyperoxia (MdHO, PaO2 200–299 mmHg), and severe hyperoxia (SHO, PaO2 >300 mmHg). Postoperative complications and outcomes were defined according to standardised criteria of the Society of Thoracic Surgeons. Results. The extent of hyperoxia was more immense in patients with a lower body mass index (p = 0.001) and of female sex (p = 0.005). A significant link between severe hyperoxia and a higher incidence of infectious complications (p – 0.044), an increased length of hospital stay (p – 0.044) and extended duration of mechanical ventilation (p < 0.001) was confirmed. Conclusions. Severe hyperoxia is associated with an increased incidence of postoperative infectious complications, prolonged mechanical ventilation, and increased hospital stay.

The impact of exogenous nitric oxide during cardiopulmonary bypass for cardiac surgery

Perfusion ◽  
2021 ◽  
pp. 026765912110148
Author(s):  
Joseph Mc Loughlin ◽  
Lorraine Browne ◽  
John Hinchion
Keyword(s):  
Nitric Oxide ◽  
Systematic Review ◽  
Cardiac Surgery ◽  
Cardiopulmonary Bypass ◽  
Troponin I ◽  
Length Of Hospital Stay ◽  
Cochrane Library ◽  
High Quality Research ◽  
Low Cardiac Output Syndrome ◽  
The Impact

Objectives: Cardiac surgery using cardiopulmonary bypass frequently provokes a systemic inflammatory response syndrome. This can lead to the development of low cardiac output syndrome (LCOS). Both of these can affect morbidity and mortality. This study is a systematic review of the impact of gaseous nitric oxide (gNO), delivered via the cardiopulmonary bypass (CPB) circuit during cardiac surgery, on post-operative outcomes. It aims to summarise the evidence available, to assess the effectiveness of gNO via the CPB circuit on outcomes, and highlight areas of further research needed to develop this hypothesis. Methods: A comprehensive search of Pubmed, Embase, Web of Science and the Cochrane Library was performed in May 2020. Only randomised control trials (RCTs) were considered. Results: Three studies were identified with a total of 274 patients. There was variation in the outcomes measures used across the studies. These studies demonstrate there is evidence that this intervention may contribute towards cardioprotection. Significant reductions in cardiac troponin I (cTnI) levels and lower vasoactive inotrope scores were seen in intervention groups. A high degree of heterogeneity between the studies exists. Meta-analysis of the duration of mechanical ventilation, length of ICU stay and length of hospital stay showed no significant differences. Conclusion: This systematic review explored the findings of three pilot RCTs. Overall the hypothesis that NO delivered via the CPB circuit can provide cardioprotection has been supported by this study. There remains a significant gap in the evidence, further high-quality research is required in both the adult and paediatric populations.

Volatile anaesthetics added to cardiopulmonary bypass are associated with reduced cardiac troponin

Perfusion ◽  
2017 ◽  
Vol 32 (7) ◽  
pp. 547-553 ◽  
Author(s):  
Elena Bignami ◽  
Marcello Guarnieri ◽  
Marina Pieri ◽  
Francesco De Simone ◽  
Alcira Rodriguez ◽  
...  
Keyword(s):  
Cardiac Surgery ◽  
Cardiopulmonary Bypass ◽  
Cardiac Troponin ◽  
Troponin I ◽  
Myocardial Necrosis ◽  
Perioperative Period ◽  
Cardiac Surgical Procedures ◽  
Control Group ◽  
Volatile Anaesthetics ◽  
Volatile Agents

Background: Every year, over 1 million cardiac surgical procedures are performed all over the world. Reducing myocardial necrosis could have strong implications in postoperative clinical outcomes. Volatile anaesthetics have cardiac protective properties in the perioperative period of cardiac surgery. However, little data exists on the administration of volatile agents during cardiopulmonary bypass. The aim of this study was to assess if volatile anaesthetics administration during cardiopulmonary bypass reduces cardiac troponin release after cardiac surgery. Materials and methods: We retrospectively analysed data from 942 patients who underwent cardiac surgery in a teaching hospital. The only difference between the groups was the management of anaesthesia during CPB. The volatile group received sevoflurane or desflurane while the control group received a combination of propofol infusion and fentanyl boluses. Patients who received volatile anaesthetics during cardiopulmonary bypass (n=314) were propensity-matched 1:2 with patients who did not receive volatile anaesthetics during CPB (n=628). Results: We found a reduction in peak postoperative troponin I, from 7.8 ng/ml (4.8-13.1) in the non-volatile group to 6.8 ng/ml (3.7-11.8) in the volatile group (p=0.013), with no differences in mortality [2 (0.6%) in the volatile group and 2 (0.3%) in the non-volatile group (p=0.6)]. Conclusions: Adding volatile anaesthetics during cardiopulmonary bypass was associated with reduced peak postoperative troponin levels. Larger studies are required to confirm our data and to assess the effect of volatile agents on survival.

scholarly journals Remimazolam anesthesia for cardiac surgery with cardiopulmonary bypass: a case report

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Kota Saito ◽  
Sho Ohno ◽  
Makishi Maeda ◽  
Naoyuki Hirata ◽  
Michiaki Yamakage
Keyword(s):  
Cardiac Surgery ◽  
Cardiopulmonary Bypass ◽  
Oxygen Saturation ◽  
Anesthetic Management ◽  
Perioperative Period ◽  
Maze Procedure ◽  
Intraoperative Awareness ◽  
Case Presentation ◽  
Venous Oxygen Saturation ◽  
Index Value

Abstract Background Remimazolam has less cardiovascular depressant effects than propofol in non-cardiac surgical patients. However, the efficacy and safety of remimazolam in cardiac surgery with cardiopulmonary bypass (CPB) have not been reported. We present a case of successful anesthetic management using remimazolam in cardiac surgery with CPB. Case presentation A 76-year-old female was scheduled for mitral valve repair, tricuspid annuloplasty, maze procedure, and left atrial appendage closure. We used remimazolam in induction (6.0 mg/kg/h) and maintenance (0.6–1.0 mg/kg/h) of general anesthesia, and the bispectral index value was maintained in the range of 36 to 48 including the period of CPB. Hemodynamics, mixed venous oxygen saturation, and bilateral regional cerebral oxygen saturation were maintained within acceptable ranges. There was no intraoperative awareness/recall or serious complications associated with remimazolam throughout the perioperative period. Conclusions Remimazolam can be used the same as other existing anesthetics in cardiac surgery with CPB.

Abstract 14873: Is There Difference in Clinical Outcomes Following Percutaneous Coronary Intervention (PCI) for Acute Coronary Syndrome (ACS) between Hospitals With and Without Onsite Cardiac Surgery Backup?

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Tomonori Akasaka ◽  
Seiji Hokimoto ◽  
Noriaki Tabata ◽  
Kenji Sakamoto ◽  
Kenichi Tsujita ◽  
...  
Keyword(s):  
Cardiac Surgery ◽  
Clinical Outcomes ◽  
Primary Endpoint ◽  
Proportional Hazards Model ◽  
Cox Proportional Hazards Model ◽  
Bleeding Complications ◽  
Hospital Death ◽  
Coronary Syndrome ◽  
Significant Difference ◽  
The Impact

Background: Based on 2011 ACCF/AHA/SCAI PCI guideline, it is recommended that PCI should be performed at hospital with onsite cardiac surgery. But, recent data suggests that there is no significant difference in clinical outcomes following primary or elective PCI between hospitals with and without onsite cardiac surgery. The proportion of PCI centers without onsite cardiac surgery comprises approximately more than half of all PCI centers in Japan. We examined the impact of with or without onsite cardiac surgery on clinical outcomes following PCI to ACS. Methods: From Aug 2008 to March 2011, subjects (n=2288) were enrolled from the Kumamoto Intervention Conference Study (KICS), which is a multicenter registry, and enrolling consecutive patients undergoing PCI in 15 centers in Japan. Patients were assigned to two groups treated in hospitals with (n=1954) or without (n=334) onsite cardiac surgery. Clinical events were followed up for 12 months. Primary endpoint was in-hospital death, cardiovascular death, myocardial infarction, and stroke. And we monitored other events those were non-cardiovascular deaths, bleeding complications, revascularizations, and emergent CABG. Results: There was no overall significant difference in primary endpoint between hospitals with and without onsite cardiac surgery (9.6%vs9.5%; P=0.737). There was also no significant difference when events in primary endpoint were considered separately. In other events, only revascularization was more frequently seen in hospitals with onsite cardiac surgery (22.1%vs12.9%; P<0.001). Kaplan-Meier analysis for primary endpoint showed that there was no significant difference between two groups (Log Rank P=0.943). By cox proportional hazards model analysis for primary endpoint, without onsite cardiac surgery was not a predictive factor for primary endpoint (HR 0.969, 95%CI 0.704-1.333; P=0.845). We performed propensity score matching analysis to correct for the disparate patient numbers between two groups, and there was also no significant difference for primary endpoint (6.9% vs 8.0%; P=0.544). Conclusions: There is no significant difference in clinical outcomes following PCI for ACS between hospitals with and without onsite cardiac surgery backup in Japan.

scholarly journals Relationship between availability of physiotherapy services and ICU costs

2018 ◽  
Vol 44 (3) ◽  
pp. 184-189 ◽  
Author(s):  
Bruna Peruzzo Rotta ◽  
Janete Maria da Silva ◽  
Carolina Fu ◽  
Juliana Barbosa Goulardins ◽  
Ruy de Camargo Pires-Neto ◽  
...  
Keyword(s):  
Mechanical Ventilation ◽  
Length Of Stay ◽  
Invasive Mechanical Ventilation ◽  
Severity Of Illness ◽  
Apache Ii Score ◽  
Health Evaluation ◽  
Icu Length Of Stay ◽  
Tertiary Teaching ◽  
Tertiary Teaching Hospital ◽  
First Time

ABSTRACT Objective: To determine whether 24-h availability of physiotherapy services decreases ICU costs in comparison with the standard 12 h/day availability among patients admitted to the ICU for the first time. Methods: This was an observational prevalence study involving 815 patients ≥ 18 years of age who had been on invasive mechanical ventilation (IMV) for ≥ 24 h and were discharged from an ICU to a ward at a tertiary teaching hospital in Brazil. The patients were divided into two groups according to h/day availability of physiotherapy services in the ICU: 24 h (PT-24; n = 332); and 12 h (PT-12; n = 483). The data collected included the reasons for hospital and ICU admissions; Acute Physiology and Chronic Health Evaluation II (APACHE II) score; IMV duration, ICU length of stay (ICU-LOS); and Omega score. Results: The severity of illness was similar in both groups. Round-the-clock availability of physiotherapy services was associated with shorter IMV durations and ICU-LOS, as well as with lower total, medical, and staff costs, in comparison with the standard 12 h/day availability. Conclusions: In the population studied, total costs and staff costs were lower in the PT-24 group than in the PT-12 group. The h/day availability of physiotherapy services was found to be a significant predictor of ICU costs.

scholarly journals Clinical outcomes of concomitant use of enteral and intravenous sedatives and analgesics in mechanically ventilated patients with COVID-19

2021 ◽  
Author(s):  
Nayoung Kang ◽  
Mohammed A Alrashed ◽  
Eric M Place ◽  
Phuongthao T Nguyen ◽  
Stephen J Perona ◽  
...  
Keyword(s):  
Mechanical Ventilation ◽  
Invasive Mechanical Ventilation ◽  
Institutional Review Board ◽  
Chain Reaction ◽  
Mechanically Ventilated ◽  
Ventilation Time ◽  
Institutional Review ◽  
Significant Difference ◽  
Polymerase Chain ◽  
The Impact

Abstract Disclaimer In an effort to expedite the publication of articles related to the COVID-19 pandemic, AJHP is posting these manuscripts online as soon as possible after acceptance. Accepted manuscripts have been peer-reviewed and copyedited, but are posted online before technical formatting and author proofing. These manuscripts are not the final version of record and will be replaced with the final article (formatted per AJHP style and proofed by the authors) at a later time. Purpose To evaluate potential differences in days on mechanical ventilation for patients with coronavirus disease 2019 (COVID-19) based on route of administration of analgesic and sedative medications: intravenous (IV) alone vs IV + enteral (EN). Summary This institutional review board–approved study evaluated ventilation time and fentanyl or midazolam requirements with or without concurrent EN hydromorphone and lorazepam. Patients were included in the study if they were 18 to 89 years old and were admitted to the intensive care unit with a positive severe acute respiratory syndrome coronavirus 2 reverse transcription and polymerase chain reaction or antigen test and respiratory failure requiring invasive mechanical ventilation for more than 72 hours. In total, 100 patients were evaluated, 60 in the IV-only group and 40 in the IV + EN group. There was not a significant difference in ventilation time between the groups (mean [SD], 19.6 [12.8] days for IV + EN vs 15.6 [11.2] days for IV only; P = 0.104). However, fentanyl (2,064 [847] μg vs 2,443 [779] μg; P &lt; 0.001) and midazolam (137 [72] mg vs 158 [70] mg; P = 0.004) requirements on day 3 were significantly higher in the IV-only group, and the increase in fentanyl requirements from day 1 to day 3 was greater in the IV-only group than in the IV + EN group (378 [625] μg vs 34 [971] μg; P = 0.033). Conclusion Addition of EN analgesic and sedative medications to those administered by the IV route did not change the duration of mechanical ventilation in patients with COVID-19, but the combination may reduce IV opioid requirements, decreasing the impact of IV medication shortages.

scholarly journals Glycemic Control & Morbidity in Diabetics With COPD Exacerbation. A Retrospective Study

2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. A414-A414
Author(s):  
Ibrahim Naoum ◽  
Abedalghani Abedalhalim ◽  
Amir Aker ◽  
Luai Khalaili ◽  
Sameer Kassem
Keyword(s):  
Mechanical Ventilation ◽  
Glycemic Control ◽  
Population Based ◽  
Chronic Obstructive ◽  
P Value ◽  
Diabetic Patients ◽  
Copd Exacerbation ◽  
Copd Exacerbations ◽  
Significant Difference ◽  
The Impact

Abstract Background: Diabetes and chronic obstructive pulmonary disease (COPD) are widely prevalent and comorbidity with these diseases is quite common. However, there is limited data on the interrelation between glycemic control and COPD exacerbations in diabetic patients. Objective: To study the association between pre-admission glycemic control and COPD clinical outcomes including mortality, risk of hospital readmission and the need for mechanical ventilation. Methods: A retrospective population-based cohort study. We screened for patients with both diabetes and COPD exacerbation aged 35 years and above. Pre-admission glycemic control was defined by the last HBA1C level prior to hospitalization. Patients with HBA1C&gt;8% were defined as uncontrolled. We evaluated the difference between controlled and uncontrolled groups in the rates of mortality, readmission and the need for mechanical ventilation. We examined demographic and clinical parameters that might reflect COPD severity including: COPD medication use, blood hemoglobin, platelets, LDH and CRP levels. Results: 513 hospitalizations with diabetes and COPD were screened. 222 hospitalization were excluded either due to unestablished diagnosis of COPD or due to lack of HBA1C test in the preceding year. Of the remaining 291, 208 admissions were with controlled diabetes whereas 83 were uncontrolled. Although not statistically significant, the rate of re-hospitalization was higher in the uncontrolled group (OR 1.99, CI 0.99–4.0, p-value 0.051). There was no statistically significant difference in mortality (OR 1.6, CI 0.73–3.5, p-value 0.243). The use of oxygen and the need for noninvasive mechanical ventilation were significantly higher in the uncontrolled group (67.5% vs. 52.4%, p-value 0.019, 33.7% versus 18.8%, p-value 0.006, respectively). There was no significant difference in possible confounders tested between the groups. Conclusion: Uncontrolled diabetes may adversely affect patients with COPD exacerbation. Larger studies are needed to conclusively determine the impact of glycemic control on COPD morbidity and mortality.

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