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Benites MH, Zapata-Canivilo M, Poblete F, Labbe F, Battiato R, Ferre A, Dreyse J, Bugedo G, Bruhn A, Costa ELV, Retamal J. Physiological and clinical effects of trunk inclination adjustment in patients with respiratory failure: a scoping review and narrative synthesis. Crit Care 2024; 28:228. [PMID: 38982466 PMCID: PMC11232125 DOI: 10.1186/s13054-024-05010-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Accepted: 06/27/2024] [Indexed: 07/11/2024] Open
Abstract
BACKGROUND Adjusting trunk inclination from a semi-recumbent position to a supine-flat position or vice versa in patients with respiratory failure significantly affects numerous aspects of respiratory physiology including respiratory mechanics, oxygenation, end-expiratory lung volume, and ventilatory efficiency. Despite these observed effects, the current clinical evidence regarding this positioning manoeuvre is limited. This study undertakes a scoping review of patients with respiratory failure undergoing mechanical ventilation to assess the effect of trunk inclination on physiological lung parameters. METHODS The PubMed, Cochrane, and Scopus databases were systematically searched from 2003 to 2023. INTERVENTIONS Changes in trunk inclination. MEASUREMENTS Four domains were evaluated in this study: 1) respiratory mechanics, 2) ventilation distribution, 3) oxygenation, and 4) ventilatory efficiency. RESULTS After searching the three databases and removing duplicates, 220 studies were screened. Of these, 37 were assessed in detail, and 13 were included in the final analysis, comprising 274 patients. All selected studies were experimental, and assessed respiratory mechanics, ventilation distribution, oxygenation, and ventilatory efficiency, primarily within 60 min post postural change. CONCLUSION In patients with acute respiratory failure, transitioning from a supine to a semi-recumbent position leads to decreased respiratory system compliance and increased airway driving pressure. Additionally, C-ARDS patients experienced an improvement in ventilatory efficiency, which resulted in lower PaCO2 levels. Improvements in oxygenation were observed in a few patients and only in those who exhibited an increase in EELV upon moving to a semi-recumbent position. Therefore, the trunk inclination angle must be accurately reported in patients with respiratory failure under mechanical ventilation.
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Affiliation(s)
- Martín H Benites
- Unidad de Pacientes Críticos, Clínica Las Condes, Santiago, Chile
- Facultad de Medicina, Escuela de Medicina, Universidad Finis Terrae, Santiago, Chile
- Doctorado en Ciencias Médicas, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | | | - Fabian Poblete
- Unidad de Pacientes Críticos, Clínica Las Condes, Santiago, Chile
| | - Francisco Labbe
- Unidad de Pacientes Críticos, Clínica Las Condes, Santiago, Chile
| | - Romina Battiato
- Magíster em Bioestadística, Escuela de Salud Pública, Universidad de Chile, Santiago, Chile
| | - Andrés Ferre
- Unidad de Pacientes Críticos, Clínica Las Condes, Santiago, Chile
- Facultad de Medicina, Escuela de Medicina, Universidad Finis Terrae, Santiago, Chile
| | - Jorge Dreyse
- Unidad de Pacientes Críticos, Clínica Las Condes, Santiago, Chile
- Facultad de Medicina, Escuela de Medicina, Universidad Finis Terrae, Santiago, Chile
| | - Guillermo Bugedo
- Departamento de Medicina Intensiva, Hospital Clínico Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Alejandro Bruhn
- Departamento de Medicina Intensiva, Hospital Clínico Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Eduardo L V Costa
- Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Laboratório de Pneumologia LIM-09, Disciplina de Pneumologia, Heart Institute (Incor), São Paulo, Brazil
- Hospital Sírio-Libanês, Research and Education Institute, São Paulo, Brazil
| | - Jaime Retamal
- Departamento de Medicina Intensiva, Hospital Clínico Pontificia Universidad Católica de Chile, Santiago, Chile.
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Seybold B, Deutsch AM, Deutsch BL, Simeliunas E, Weigand MA, Fiedler-Kalenka MO, Kalenka A. Differential Effects of Intra-Abdominal Hypertension and ARDS on Respiratory Mechanics in a Porcine Model. MEDICINA (KAUNAS, LITHUANIA) 2024; 60:843. [PMID: 38929460 PMCID: PMC11205316 DOI: 10.3390/medicina60060843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Revised: 05/17/2024] [Accepted: 05/18/2024] [Indexed: 06/28/2024]
Abstract
Background and Objectives: Intra-abdominal hypertension (IAH) and acute respiratory distress syndrome (ARDS) are common concerns in intensive care unit patients with acute respiratory failure (ARF). Although both conditions lead to impairment of global respiratory parameters, their underlying mechanisms differ substantially. Therefore, a separate assessment of the different respiratory compartments should reveal differences in respiratory mechanics. Materials and Methods: We prospectively investigated alterations in lung and chest wall mechanics in 18 mechanically ventilated pigs exposed to varying levels of intra-abdominal pressures (IAP) and ARDS. The animals were divided into three groups: group A (IAP 10 mmHg, no ARDS), B (IAP 20 mmHg, no ARDS), and C (IAP 10 mmHg, with ARDS). Following induction of IAP (by inflating an intra-abdominal balloon) and ARDS (by saline lung lavage and injurious ventilation), respiratory mechanics were monitored for six hours. Statistical analysis was performed using one-way ANOVA to compare the alterations within each group. Results: After six hours of ventilation, end-expiratory lung volume (EELV) decreased across all groups, while airway and thoracic pressures increased. Significant differences were noted between group (B) and (C) regarding alterations in transpulmonary pressure (TPP) (2.7 ± 0.6 vs. 11.3 ± 2.1 cmH2O, p < 0.001), elastance of the lung (EL) (8.9 ± 1.9 vs. 29.9 ± 5.9 cmH2O/mL, p = 0.003), and elastance of the chest wall (ECW) (32.8 ± 3.2 vs. 4.4 ± 1.8 cmH2O/mL, p < 0.001). However, global respiratory parameters such as EELV/kg bodyweight (-6.1 ± 1.3 vs. -11.0 ± 2.5 mL/kg), driving pressure (12.5 ± 0.9 vs. 13.2 ± 2.3 cmH2O), and compliance of the respiratory system (-21.7 ± 2.8 vs. -19.5 ± 3.4 mL/cmH2O) did not show significant differences among the groups. Conclusions: Separate measurements of lung and chest wall mechanics in pigs with IAH or ARDS reveals significant differences in TPP, EL, and ECW, whereas global respiratory parameters do not differ significantly. Therefore, assessing the compartments of the respiratory system separately could aid in identifying the underlying cause of ARF.
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Affiliation(s)
- Benjamin Seybold
- Department of Anesthesiology, Medical Faculty, Heidelberg University Hospital, University Heidelberg, 69120 Heidelberg, Germany; (A.M.D.); (B.L.D.); (E.S.); (M.A.W.); (M.O.F.-K.); (A.K.)
| | - Anna M. Deutsch
- Department of Anesthesiology, Medical Faculty, Heidelberg University Hospital, University Heidelberg, 69120 Heidelberg, Germany; (A.M.D.); (B.L.D.); (E.S.); (M.A.W.); (M.O.F.-K.); (A.K.)
- Department of Anesthesiology, Intensive Care Medicine and Pain Therapy, Vivantes Klinikum im Friedrichshain, 10249 Berlin, Germany
| | - Barbara Luise Deutsch
- Department of Anesthesiology, Medical Faculty, Heidelberg University Hospital, University Heidelberg, 69120 Heidelberg, Germany; (A.M.D.); (B.L.D.); (E.S.); (M.A.W.); (M.O.F.-K.); (A.K.)
- Department of Anesthesiology, Intensive Care and Emergency Medicine, Asklepios Klinik Wandsbek, 22043 Hamburg, Germany
| | - Emilis Simeliunas
- Department of Anesthesiology, Medical Faculty, Heidelberg University Hospital, University Heidelberg, 69120 Heidelberg, Germany; (A.M.D.); (B.L.D.); (E.S.); (M.A.W.); (M.O.F.-K.); (A.K.)
- Department of Anesthesiology and Intensive Care Medicine, Bürgerspital Solothurn, 4500 Solothurn, Switzerland
| | - Markus A. Weigand
- Department of Anesthesiology, Medical Faculty, Heidelberg University Hospital, University Heidelberg, 69120 Heidelberg, Germany; (A.M.D.); (B.L.D.); (E.S.); (M.A.W.); (M.O.F.-K.); (A.K.)
- German Center for Lung Research (DZL), Translational Lung Research Center Heidelberg (TLRC), 69120 Heidelberg, Germany
| | - Mascha O. Fiedler-Kalenka
- Department of Anesthesiology, Medical Faculty, Heidelberg University Hospital, University Heidelberg, 69120 Heidelberg, Germany; (A.M.D.); (B.L.D.); (E.S.); (M.A.W.); (M.O.F.-K.); (A.K.)
- German Center for Lung Research (DZL), Translational Lung Research Center Heidelberg (TLRC), 69120 Heidelberg, Germany
| | - Armin Kalenka
- Department of Anesthesiology, Medical Faculty, Heidelberg University Hospital, University Heidelberg, 69120 Heidelberg, Germany; (A.M.D.); (B.L.D.); (E.S.); (M.A.W.); (M.O.F.-K.); (A.K.)
- Hospital Bergstrasse, 64646 Heppenheim, Germany
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Benites MH, Torres D, Poblete F, Labbe F, Bachmann MC, Regueira TE, Soto L, Ferre A, Dreyse J, Retamal J. Effects of changes in trunk inclination on ventilatory efficiency in ARDS patients: quasi-experimental study. Intensive Care Med Exp 2023; 11:65. [PMID: 37755538 PMCID: PMC10533449 DOI: 10.1186/s40635-023-00550-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 09/12/2023] [Indexed: 09/28/2023] Open
Abstract
BACKGROUND Trunk inclination from semirecumbent head-upright to supine-flat positioning reduces driving pressure and increases respiratory system compliance in patients with acute respiratory distress syndrome (ARDS). These effects are associated with an improved ventilatory ratio and reduction in the partial pressure of carbon dioxide (PaCO2). However, these physiological effects have not been completely studied, and their mechanisms have not yet been elucidated. Therefore, this study aimed to evaluate the effects of a change in trunk inclination from semirecumbent (45°) to supine-flat (10°) on physiological dead space and ventilation distribution in different lung regions. RESULTS Twenty-two ARDS patients on pressure-controlled ventilation underwent three 60-min steps in which trunk inclination was changed from 45° (baseline) to 10° (intervention) and back to 45° (control) in the last step. Tunk inclination from a semirecumbent (45°) to a supine-flat (10°) position resulted in a higher tidal volume [371 (± 76) vs. 433 (± 84) mL (P < 0.001)] and respiratory system compliance [34 (± 10) to 41 (± 12) mL/cmH2O (P < 0.001)]. The CO2 exhaled per minute improved from 191 mL/min (± 34) to 227 mL/min (± 38) (P < 0.001). Accordingly, Bohr's dead space ratio decreased from 0.49 (± 0.07) to 0.41 (± 0.06) (p < 0.001), and PaCO2 decreased from 43 (± 5) to 36 (± 4) mmHg (p < 0.001). In addition, the impedance ratio, which divides the ventilation activity of the ventral region by the dorsal region ventilation activity in tidal images, dropped from 1.27 (0.83-1.78) to 0.86 (0.51-1.33) (p < 0.001). These results, calculated from functional EIT images, indicated further ventilation activity in the dorsal lung regions. These effects rapidly reversed once the patient was repositioned at 45°. CONCLUSIONS A change in trunk inclination from a semirecumbent (45 degrees) to a supine-flat position (10 degrees) improved Bohr's dead space ratio and reduced PaCO2 in patients with ARDS. This effect is associated with an increase in tidal volume and respiratory system compliance, along with further favourable impedance ventilation distribution toward the dorsal lung regions. This study highlights the importance of considering trunk inclination as a modifiable determinant of physiological parameters. The angle of trunk inclination is essential information that must be reported in ARDS patients.
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Affiliation(s)
- Martín H Benites
- Unidad de Pacientes Críticos, Clínica Las Condes, Estoril 450, Santiago, Chile
- Departamento de Epidemiología y Estudios en Salud, Magíster en Epidemiología, Universidad de los Andes, Monseñor Álvaro del Portillo 12455, Santiago, Chile
- Estudiante del Programa Doctorado en Ciencias Médicas, Escuela de Medicina, Pontificia Universidad Católica de Chile, Av. Libertador Bernardo O'Higgins 340, Santiago, Chile
- Facultad de Medicina, Escuela de Medicina, Universidad Finis Terrae, Av. Pedro de Valdivia 1509, Santiago, Chile
| | - David Torres
- Departamento de Epidemiología y Estudios en Salud, Magíster en Epidemiología, Universidad de los Andes, Monseñor Álvaro del Portillo 12455, Santiago, Chile
| | - Fabian Poblete
- Unidad de Pacientes Críticos, Clínica Las Condes, Estoril 450, Santiago, Chile
| | - Francisco Labbe
- Unidad de Pacientes Críticos, Clínica Las Condes, Estoril 450, Santiago, Chile
| | - María C Bachmann
- Estudiante del Programa Doctorado en Ciencias Médicas, Escuela de Medicina, Pontificia Universidad Católica de Chile, Av. Libertador Bernardo O'Higgins 340, Santiago, Chile
- Departamento de Medicina Intensiva, Hospital Clínico Pontificia Universidad Católica de Chile, Marcoleta 367, Santiago, Chile
| | - Tomas E Regueira
- Unidad de Pacientes Críticos, Clínica Santa María, Bellavista 415, Santiago, Chile
| | - Leonardo Soto
- Facultad de Medicina, Escuela de Medicina, Universidad Finis Terrae, Av. Pedro de Valdivia 1509, Santiago, Chile
- Unidad de Pacientes Críticos, Clínica Santa María, Bellavista 415, Santiago, Chile
| | - Andrés Ferre
- Unidad de Pacientes Críticos, Clínica Las Condes, Estoril 450, Santiago, Chile
- Facultad de Medicina, Escuela de Medicina, Universidad Finis Terrae, Av. Pedro de Valdivia 1509, Santiago, Chile
| | - Jorge Dreyse
- Unidad de Pacientes Críticos, Clínica Las Condes, Estoril 450, Santiago, Chile
| | - Jaime Retamal
- Departamento de Medicina Intensiva, Hospital Clínico Pontificia Universidad Católica de Chile, Marcoleta 367, Santiago, Chile.
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Reliability of stroke volume or pulse pressure variation as dynamic predictors of fluid responsiveness in laparoscopic surgery: a systematic review. J Clin Monit Comput 2022; 37:379-387. [PMID: 36399217 DOI: 10.1007/s10877-022-00939-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 10/25/2022] [Indexed: 11/19/2022]
Abstract
The reliability of stroke volume variation (SVV) and pulse pressure variation (PPV) in predicting fluid responsiveness during laparoscopic surgery remains unclear. We conducted the present systematic review to summarize the current evidence. We reviewed studies that investigated the reliability of SVV and PPV in laparoscopic surgery. Seven studies were included in the final analysis. Two studies demonstrated that the area under the receiver operating characteristic curve (AUROC) for SVV was less than 0.8, and five studies reported that the AUROC was > 0.8. The pooled AUROC for SVV and PPV was more than 0.8 with high heterogeneities between the included studies. Most individual studies have suggested that SVV and PPV are sufficiently reliable for predicting fluid responsiveness during laparoscopic surgery. However, the limited number of patients, varied apparatus used to define fluid responsiveness, diverse definitions of fluid responsiveness, and different fluids used to perform fluid challenges in the included studies render firm conclusions about SVV's and PPV's reliability impossible.
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Munsterman AS, Gillen AM, Coleridge MOD, Hanson RR. Evaluation of the effects of intraabdominal hypertension on equine central venous pressure. J Vet Emerg Crit Care (San Antonio) 2020; 30:653-659. [PMID: 32929882 DOI: 10.1111/vec.13001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 12/17/2018] [Accepted: 02/18/2019] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To evaluate the effect of changes in intraabdominal pressure (IAP) on central venous pressure (CVP) in normal horses. DESIGN Experimental, in vivo study. SETTING University Teaching Hospital. ANIMALS Convenience sample of 7 mixed breed horses-5 geldings and 2 mares. INTERVENTIONS Pneumoperitoneum was induced in horses under standing sedation with carbon dioxide gas using a laparoscopic insufflator for a total of 60 minutes to simulate clinical elevation in IAP. Pressure was increased stepwise to 20 mm Hg over 30 minutes, and maintained at that pressure for 30 minutes to evaluate the effect of sustained intraabdominal hypertension. CVP was obtained from the cranial vena cava, concurrent with pressure obtained from the peritoneal cavity. MEASUREMENTS AND MAIN RESULTS CVP increased as IAP increased up to 12 mm Hg, and declined as IAP increased further. The changes in CVP over time were significantly different (P < 0.03). Repeated measures correlation was positive, and highest, for mean CVP as IAP increased from 0 to 12 mm Hg (r = .70; 95% CI, .43-.85; P < 0.0001). Correlation of mean CVP with insufflation pressure became negative as IAP increased further from 15 to 20 mm Hg (r = -.47; 95% CI, -.66 to -.21; P = 0.0006). CONCLUSIONS This report provides preliminary data demonstrating a biphasic trend in equine CVP caused by changes in IAP, similar to that observed in other species. Further investigations are needed to evaluate this trend and to confirm these results in clinical patients.
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Affiliation(s)
- Amelia S Munsterman
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, East Lansing, Michigan
| | - Alexandra M Gillen
- The Philip Leverhulme Equine Hospital, University of Liverpool, Chester High Road, Neston, Cheshire, UK
| | | | - R Reid Hanson
- Department of Clinical Sciences, College of Veterinary Medicine, Auburn University, Auburn, AL
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Fiedler MO, Deutsch BL, Simeliunas E, Diktanaite D, Harms A, Brune M, Uhle F, Weigand M, Brenner T, Kalenka A. Effect of moderate elevated intra-abdominal pressure on lung mechanics and histological lung injury at different positive end-expiratory pressures. PLoS One 2020; 15:e0230830. [PMID: 32294090 PMCID: PMC7159202 DOI: 10.1371/journal.pone.0230830] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 03/09/2020] [Indexed: 01/07/2023] Open
Abstract
INTRODUCTION Intra-abdominal hypertension (IAH) is a well-known phenomenon in critically ill patients. Effects of a moderately elevated intra-abdominal pressure (IAP) on lung mechanics are still not fully analyzed. Moreover, the optimal positive end-expiratory pressure (PEEP) in elevated IAP is unclear. METHODS We investigated changes in lung mechanics and transformation in histological lung patterns using three different PEEP levels in eighteen deeply anesthetized pigs with an IAP of 10 mmHg. After establishing the intra-abdominal pressure, we randomized the animals into 3 groups. Each of n = 6 (Group A = PEEP 5, B = PEEP 10 and C = PEEP 15 cmH2O). End-expiratory lung volume (EELV/kg body weight (bw)), pulmonary compliance (Cstat), driving pressure (ΔP) and transpulmonary pressure (ΔPL) were measured for 6 hours. Additionally, the histological lung injury score was calculated. RESULTS Comparing hours 0 and 6 in group A, there was a decrease of EELV/kg (27±2 vs. 16±1 ml/kg; p<0.05) and of Cstat (42±2 vs. 27±1 ml/cmH2O; p<0.05) and an increase of ΔP (11±0 vs. 17±1 cmH2O; p<0.05) and ΔPL (6±0 vs. 10±1 cmH2O; p<0.05). In group B, there was no significant change in EELV/kg (27±3 vs. 24±3 ml/kg), but a decrease in Cstat (42±3 vs. 32±1 ml/cmH20; p<0.05) and an increase in ΔP (11±1 vs. 15±1 cmH2O; p<0.05) and ΔPL (5±1 vs. 7±0 cmH2O; p<0.05). In group C, there were no significant changes in EELV/kg (27±2 vs. 29±3 ml/kg), ΔP (10±1 vs. 12±1 cmH2O) and ΔPL (5±1 vs. 7±1 cmH2O), but a significant decrease of Cstat (43±1 vs. 37±1 ml/cmH2O; p<0.05). Histological lung injury score was lowest in group B. CONCLUSIONS A moderate elevated IAP of 10 mmHg leads to relevant changes in lung mechanics during mechanical ventilation. In our study, a PEEP of 10 cmH2O was associated with a lower lung injury score and was able to overcome the IAP induced alterations of EELV.
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Affiliation(s)
- Mascha O. Fiedler
- Department of Anesthesiology, Heidelberg University Hospital, Heidelberg, Germany
| | | | - Emilis Simeliunas
- Department of Anesthesiology, Heidelberg University Hospital, Heidelberg, Germany
| | - Dovile Diktanaite
- Department of Anesthesiology, Heidelberg University Hospital, Heidelberg, Germany
| | - Alexander Harms
- Heidelberg University Hospital, Institute of Pathology, Heidelberg, Germany
| | - Maik Brune
- Department of Internal Medicine I and Clinical Chemistry, Heidelberg University Hospital, Heidelberg, Germany
| | - Florian Uhle
- Department of Anesthesiology, Heidelberg University Hospital, Heidelberg, Germany
| | - Markus Weigand
- Department of Anesthesiology, Heidelberg University Hospital, Heidelberg, Germany
| | - Thorsten Brenner
- Department of Anesthesiology, Heidelberg University Hospital, Heidelberg, Germany
| | - Armin Kalenka
- Department of Anesthesiology and Intensive Care Medicine, Hospital Bergstrasse, Heppenheim, Germany
- Faculty of Medicine, University of Heidelberg, Heidelberg, Germany
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Regli A, Pelosi P, Malbrain MLNG. Ventilation in patients with intra-abdominal hypertension: what every critical care physician needs to know. Ann Intensive Care 2019; 9:52. [PMID: 31025221 PMCID: PMC6484068 DOI: 10.1186/s13613-019-0522-y] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 04/04/2019] [Indexed: 12/16/2022] Open
Abstract
The incidence of intra-abdominal hypertension (IAH) is high and still underappreciated by critical care physicians throughout the world. One in four to one in three patients will have IAH on admission, while one out of two will develop IAH within the first week of Intensive Care Unit stay. IAH is associated with high morbidity and mortality. Although considerable progress has been made over the past decades, some important questions remain regarding the optimal ventilation management in patients with IAH. An important first step is to measure intra-abdominal pressure (IAP). If IAH (IAP > 12 mmHg) is present, medical therapies should be initiated to reduce IAP as small reductions in intra-abdominal volume can significantly reduce IAP and airway pressures. Protective lung ventilation with low tidal volumes in patients with respiratory failure and IAH is important. Abdominal-thoracic pressure transmission is around 50%. In patients with IAH, higher positive end-expiratory pressure (PEEP) levels are often required to avoid alveolar collapse but the optimal PEEP in these patients is still unknown. During recruitment manoeuvres, higher opening pressures may be required while closely monitoring oxygenation and the haemodynamic response. During lung-protective ventilation, whilst keeping driving pressures within safe limits, higher plateau pressures than normally considered might be acceptable. Monitoring of the respiratory function and adapting the ventilatory settings during anaesthesia and critical care are of great importance. This review will focus on how to deal with the respiratory derangements in critically ill patients with IAH.
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Affiliation(s)
- Adrian Regli
- Department of Intensive Care, Fiona Stanley Hospital, Murdoch Drive, Murdoch, WA 6152 Australia
- Medical School, Division of Emergency Medicine, The University of Western Australia, Sterling Highway, Crawley, Perth, WA 6009 Australia
- Medical School, The Notre Dame University, Henry Road, Fremantle, Perth, WA 6959 Australia
| | - Paolo Pelosi
- Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, Genoa, Italy
- San Martino Policlinico Hospital, IRCCS for Oncology and Neurosciences, Genoa, Italy
| | - Manu L. N. G. Malbrain
- Intensive Care Unit, University Hospital Brussels (UZB), Jette, Belgium
- Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel (VUB), Brussels, Belgium
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Chin JH, Lee EH, Hwang GS, Hwang JH, Choi WJ. Prediction of Fluid Responsiveness Using Dynamic Preload Indices in Patients Undergoing Robot-Assisted Surgery with Pneumoperitoneum in the Trendelenburg Position. Anaesth Intensive Care 2019; 41:515-22. [DOI: 10.1177/0310057x1304100413] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- J. H. Chin
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - E. H. Lee
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - G. S. Hwang
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - J. H. Hwang
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - W. J. Choi
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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Malbrain MLNG. The saga continues: How to set best PEEP in intra-abdominal hypertension? J Crit Care 2017; 43:387-389. [PMID: 29146063 DOI: 10.1016/j.jcrc.2017.11.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Accepted: 11/06/2017] [Indexed: 11/28/2022]
Affiliation(s)
- Manu L N G Malbrain
- Intensive Care Unit, University Hospital Brussels (UZB), Jette, Belgium; Faculty of Medicine and Pharmacy, Free University Brussels (VUB), Brussels, Belgium.
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Malbrain MLNG, Peeters Y, Wise R. The neglected role of abdominal compliance in organ-organ interactions. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2016; 20:67. [PMID: 26983963 PMCID: PMC4794911 DOI: 10.1186/s13054-016-1220-x] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
This article is one of ten reviews selected from the Annual Update in Intensive Care and Emergency medicine 2016. Other selected articles can be found online at http://www.biomedcentral.com/collections/annualupdate2016. Further information about the Annual Update in Intensive Care and Emergency Medicine is available from http://www.springer.com/series/8901.
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Affiliation(s)
- Manu L N G Malbrain
- Ziekenhuis Netwerk Antwerpen, ZNA Stuivenberg, Intensive Care Unit and High Care Burn Unit, B-2060, Antwerp, Belgium.
| | - Yannick Peeters
- Ziekenhuis Netwerk Antwerpen, ZNA Stuivenberg, Intensive Care Unit and High Care Burn Unit, B-2060, Antwerp, Belgium
| | - Robert Wise
- Head Clinical Unit Critical Care, Edendale Hospital, Pietermaritzburg, South Africa.,South African Peri-operative Research Group, Discipline of Anaesthesia and Critical Care, Nelson R Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
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Jaipuria J, Bhandari V, Chawla AS, Singh M. Intra-abdominal pressure: Time ripe to revise management guidelines of acute pancreatitis? World J Gastrointest Pathophysiol 2016; 7:186-98. [PMID: 26909242 PMCID: PMC4753186 DOI: 10.4291/wjgp.v7.i1.186] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 09/08/2015] [Accepted: 11/03/2015] [Indexed: 02/06/2023] Open
Abstract
AIM To systematically review evidence on pathophysiology of intra-abdominal pressure (IAP) in acute pancreatitis (AP) with its clinical correlates. METHODS Systematic review of available evidence in English literature with relevant medical subject heading terms on PubMed, Medline and Scopus with further search from open access sources on internet as suggested by articles retrieved. RESULTS Intra-abdominal hypertension (IAH) is increasingly gaining recognition as a point of specific intervention with potential to alter disease outcome and improve mortality in AP. IAH can be expected in at least 17% of patients presenting with diagnosis of AP to a typical tertiary care hospital (prevalence increasing to 50% in those with severe disease). Abdominal compartment syndrome can be expected in at least 15% patients with severe disease. Recent guidelines on management of AP do not acknowledge utility of surveillance for IAP other than those by Japanese Society of Hepato-Biliary-Pancreatic Surgery. We further outline pathophysiologic mechanisms of IAH; understanding of which advances our knowledge and helps to coherently align common observed variations in management related conundrums (such as fluid therapy, nutrition and antibiotic prophylaxis) with potential to further individualize treatment in AP. CONCLUSION We suggest that IAP be given its due place in future practice guidelines and that recommendations be formed with help of a broader panel with inclusion of clinicians experienced in management of IAH.
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Díaz F, Erranz B, Donoso A, Salomon T, Cruces P. Influence of tidal volume on pulse pressure variation and stroke volume variation during experimental intra-abdominal hypertension. BMC Anesthesiol 2015; 15:127. [PMID: 26395001 PMCID: PMC4579832 DOI: 10.1186/s12871-015-0105-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Accepted: 09/07/2015] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND Pulse pressure variation (PPV) and stroke volume variation (SVV) are frequently used to assess fluid responsiveness in critically ill patients on mechanical ventilation (MV). There are many factors, in addition to preload that influence the magnitude of these cyclic variations. We sought to investigate the effect of tidal volume (V(T)) on PPV and SVV, and prediction of fluid responsiveness in a model of intra-abdominal hypertension (IAH). METHODS Twelve anesthetized and mechanically ventilated piglets on continuous pulse contour cardiac output monitoring. Hypovolemia was ruled out with 2 consecutive fluid boluses after instrumentation. IAH was induced by intraperitoneal instillation of colloid solution with a goal of reducing respiratory system compliance by 50 %. Subjects were classified as fluid responders if stroke volume increased >15 % after each fluid challenge. SVV and PPV were recorded with tidal volumes (VT) of 6, 12 and 18 ml/kg before IAH after IAH induction and after a fluid challenge during IAH. RESULTS V(T) influenced PPV and SVV at baseline and during IAH, being significantly larger with higher V(T). These differences were attenuated after fluid administration in both conditions. After IAH induction, there was a significant increase in SVV with the three-tested V(T), but the magnitude of that change was larger with high V(T): with 6 ml/kg from 3 % (3, 4) to 5 % (4, 6.25) (p = 0.05), with 12 ml/kg from 5 % (4, 6) to 11 % (8.75, 17) (p = 0.02) and 18 ml/kg from 5 % (4,7.5) to 15 % (8.75, 19.5) (p = 0.02). Similarly, PPV increased with all the tested VT after IAH induction, being this increase larger with high VT: with 6 ml/kg from 3 % (2, 4.25) to 6 % (4.75, 7) (p = 0.05), with 12 ml/kg from 5 % (4, 6) to 13.5 % (10.25, 15.5) (p = 0.02) and 18 ml/kg from 7 % (5.5, 8.5) to 24 % (13.5, 30.25) (p = 0.02). One third of subjects responded to fluid administration after IAH, but neither SVV nor PPV were able to identify the fluid responders with the tested V(T). CONCLUSION IAH induction in non-hypovolemic subjects significantly increased SVV and PPV with the three tested V(T), but the magnitude of that change was higher with larger V(T). This observation reveals the dependence of functional hemodynamic markers on intrathoracic as well intra-abdominal pressures, in addition to volemic status. Also, PPV and SVV were unable to predict fluid responsiveness after IAH induction. Future studies should take into consideration these findings when exploring relationships between dynamic preload indicators and fluid responsiveness during IAH.
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Affiliation(s)
- F Díaz
- Critical Care Division, Department of Pediatrics, University of Alabama at Birmingham, Alabama, USA.
- Unidad de Cuidados Intensivos Pediatricos, Clínica Alemana de Santiago, Santiago, Chile.
| | - B Erranz
- Centro de Medicina Regenerativa, Facultad de Medicina, Clínica Alemana-Universidad del Desarrollo, Santiago, Chile.
| | - A Donoso
- Unidad de Paciente Crítico Pediátrico, Hospital Clínico Metropolitano La Florida, Santiago, Chile.
| | - T Salomon
- Unidad de Cuidados Intensivos Pediatricos, Clínica Alemana de Santiago, Santiago, Chile.
| | - Pablo Cruces
- Centro de Investigación de Medicina Veterinaria, Escuela de Medicina Veterinaria, Facultad de Ecología y Recursos Naturales, Universidad Andres Bello, Santiago, Chile.
- Pediatric ICU, Hospital El Carmen de Maipú, Camino a Rinconada 1201, Maipú, Santiago, Chile.
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Thabet FC, Bougmiza IM, Chehab MS, Bafaqih HA, AlMohaimeed SA, Malbrain MLNG. Incidence, Risk Factors, and Prognosis of Intra-Abdominal Hypertension in Critically Ill Children: A Prospective Epidemiological Study. J Intensive Care Med 2015; 31:403-8. [PMID: 25922384 DOI: 10.1177/0885066615583645] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Accepted: 02/11/2015] [Indexed: 12/29/2022]
Abstract
PURPOSE To assess the incidence, risk factors, and outcomes of intra-abdominal hypertension (IAH) in a pediatric intensive care unit (PICU). METHODS Prospective cohort study from January 2011 to January 2013. All children consecutively admitted to the PICU, staying more than 24 hours and requiring bladder catheterization, were included in the study. On admission, demographic data and risk factors for IAH were studied. The intra-abdominal pressure was measured every 6 hours through a bladder catheter until discharge, death, or removal of the catheter. RESULTS Of the 175 patients, 22 (12.6%) had IAH and 7 (4%) had abdominal compartment syndrome during the intensive care unit (ICU) stay. The independent risk factors associated with IAH were the presence of abdominal distension (odds ratio [OR] 7.1; 95% confidence interval [CI], 2.6-19.9; P < .0001) and a plateau pressure of more than 30 cm H2O (OR 6.42; 95% CI, 2.13-19.36; P = .01). The presence of IAH was associated with higher mortality (40.9% vs 15.6%; P = .01) and prolonged ICU stay (19.5 [3-97] vs 8 [1-104] days, OR 1.02; 95% CI, 1.00-1.04; P = .02). Thirty-three (18.8%) patients died in the ICU, and IAH was an independent risk factor for mortality (OR 6.98; 95% CI, 1.75-27.86; P = .006). CONCLUSION Intra-abdominal hypertension does occur in about 13% of the critically ill children, albeit less frequently than adult patients, probably related to a better compliance of the abdominal wall. The presence of abdominal distension and a plateau pressure of more than 30 cm H2O was found to be independent predictors of IAH. Children with IAH had higher mortality rate and more prolonged ICU stay.
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Affiliation(s)
- Farah Chedly Thabet
- Division of Pediatric Intensive Care, Department of Pediatrics, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
| | - Iheb Mohamed Bougmiza
- Department of Family and Community Medicine, Faculty of Medicine of Sousse, Sousse, Tunisia
| | - May Said Chehab
- Division of Pediatric Intensive Care, Department of Pediatrics, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
| | - Hind Ali Bafaqih
- Division of Pediatric Intensive Care, Department of Pediatrics, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
| | | | - Manu L N G Malbrain
- Intensive Care Unit and High Care Burn Unit, Ziekenhuis Netwerk Antwerpen, ZNA Stuivenberg, Antwerpen, Belgium
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15
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Abstract
Intra-abdominal pressure (IAP) measurements are essential to the diagnosis and management of patients with intra-abdominal hypertension (IAH) and abdominal compartment syndrome (ACS). Peak inspiratory pressure (PIP), plateau pressure (Pplat), and mean airway pressure (Paw) are used by some surgeons as surrogate estimates of IAP during abdominal closure. Thirty mechanically ventilated surgical/trauma patients with risk factors for IAH/ACS underwent simultaneous triplicate measurements of PIP, Pplat, Paw, and IAP. PIP, Pplat, and Paw were compared with IAP using both coefficient of determination and Bland and Altman analysis. The coefficient of determination for each airway pressure in predicting change in IAP was: PIP 5 per cent ( P = 0.24), Pplat 17 per cent ( P = 0.02), and Paw 15 per cent ( P = 0.03). Bland and Altman analysis identified that marked variability exists between airway pressure and IAP measurements: PIP 19.3 ± 18.7 mmHg, Pplat 11.1 ± 13.7 mmHg, and Paw 2.0 ± 9.8 mmHg. Airway pressures do not accurately reflect IAP and cannot be substituted for IAP measurements in patients at risk for IAH/ACS.
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Affiliation(s)
- Avianne Bunnell
- University of Central Florida College of Medicine, Orlando, Florida; and the
| | - Michael L. Cheatham
- Department of Surgical Education, Orlando Regional Medical Center, Orlando, Florida
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Formenti P, Umbrello M, Piva IR, Mistraletti G, Zaniboni M, Spanu P, Noto A, Marini JJ, Iapichino G. Drainage of pleural effusion in mechanically ventilated patients: time to measure chest wall compliance? J Crit Care 2014; 29:808-13. [PMID: 24863983 DOI: 10.1016/j.jcrc.2014.04.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2014] [Revised: 04/19/2014] [Accepted: 04/20/2014] [Indexed: 11/29/2022]
Abstract
PURPOSE Pleural effusion (PE) is commonly encountered in mechanically ventilated, critically ill patients and is generally addressed with evacuation or by fluid displacement using increased airway pressure (P(AW)). However, except when massive or infected, clear evidence is lacking to guide its management. The aim of this study was to investigate the effect of recruitment maneuvers and drainage of unilateral PE on respiratory mechanics, gas exchange, and lung volume. MATERIALS AND METHODS Fifteen critically ill and mechanically ventilated patients with unilateral PE were enrolled. A 3-step protocol (baseline, recruitment, and effusion drainage) was applied to patients with more than 400 mL of PE, as estimated by chest ultrasound. Predefined subgroup analysis compared patients with normal vs reduced chest wall compliance (C(CW)). Esophageal and P(AW)s, respiratory system, lung and C(CW)s, arterial blood gases, and end-expiratory lung volumes were recorded. RESULTS In the whole case mix, neither recruitment nor drainage improved gas exchange, lung volume, or tidal mechanics. When C(CW) was normal, recruitment improved lung compliance (81.9 [64.8-104.1] vs 103.7 [91.5-111.7] mL/cm H2O, P < .05), whereas drainage had no significant effect on total respiratory system mechanics or gas exchange, although it measurably increased lung volume (1717 vs 2150 mL, P < .05). In the setting of reduced C(CW), however, recruitment had no significant effect on total respiratory system mechanics or gas exchange, whereas pleural drainage improved respiratory system and C(CW)s as well as lung volume (42.7 [38.9-50.0] vs 47.0 [43.8-63.3], P < .05 and 97.4 [89.3-97.9] vs 126.7 [92.3-153.8] mL/cm H2O, P < .05 and 1580 vs 1750 mL, P < .05, respectively). CONCLUSIONS Drainage of a moderate-sized effusion should not be routinely performed in unselected population of critically ill patients. We suggest that measurement of C(CW) may help in the decision-making process.
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Affiliation(s)
- Paolo Formenti
- Unità Operativa di Anestesia e Rianimazione, Azienda Ospedaliera San Paolo-Polo Universitario, Milano, Italy.
| | - Michele Umbrello
- Unità Operativa di Anestesia e Rianimazione, Azienda Ospedaliera San Paolo-Polo Universitario, Milano, Italy
| | - Ilaria R Piva
- Dipartimento di Fisiopatologia Medico-Chirurgica e dei Trapianti, Università degli Studi di Milano, Milano, Italy
| | - Giovanni Mistraletti
- Unità Operativa di Anestesia e Rianimazione, Azienda Ospedaliera San Paolo-Polo Universitario, Milano, Italy; Dipartimento di Fisiopatologia Medico-Chirurgica e dei Trapianti, Università degli Studi di Milano, Milano, Italy
| | - Matteo Zaniboni
- Dipartimento di Neuroscienze, Azienda Ospedaliera Ospedale Niguarda Ca' Granda, Milano, Italy
| | - Paolo Spanu
- Unità Operativa di Anestesia e Rianimazione, Azienda Ospedaliera San Paolo-Polo Universitario, Milano, Italy
| | - Andrea Noto
- Unità Operativa di Anestesia e Rianimazione, Azienda Ospedaliera San Paolo-Polo Universitario, Milano, Italy
| | - John J Marini
- Department of Pulmonary and Critical Care, University of Minnesota, Regions Hospital, St Paul, MN, USA
| | - Gaetano Iapichino
- Unità Operativa di Anestesia e Rianimazione, Azienda Ospedaliera San Paolo-Polo Universitario, Milano, Italy; Dipartimento di Fisiopatologia Medico-Chirurgica e dei Trapianti, Università degli Studi di Milano, Milano, Italy
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Experimental intra-abdominal hypertension influences airway pressure limits for lung protective mechanical ventilation. J Trauma Acute Care Surg 2013; 74:1468-73. [PMID: 23694861 DOI: 10.1097/ta.0b013e31829243a7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Intra-abdominal hypertension (IAH) and abdominal compartment syndrome (ACS) may complicate monitoring of pulmonary mechanics owing to their impact on the respiratory system. However, recommendations for mechanical ventilation of patients with IAH/ACS and the interpretation of thoracoabdominal interactions remain unclear. Our study aimed to characterize the influence of elevated intra-abdominal pressure (IAP) and positive end-expiratory pressure (PEEP) on airway plateau pressure (PPLAT) and bladder pressure (PBLAD). METHODS Nine deeply anesthetized swine were mechanically ventilated via tracheostomy: volume-controlled mode at tidal volume (VT) of 10 mL/kg, frequency of 15, inspiratory-expiratory ratio of 1:2, and PEEP of 1 and 10 cm H2O (PEEP1 and PEEP10, respectively). A tracheostomy tube was placed in the peritoneal cavity, and IAP levels of 5, 10, 15, 20, and 25 mm Hg were applied, using a continuous positive airway pressure system. At each IAP level, PBLAD and airway pressure measurements were performed during both PEEP1 and PEEP10. RESULTS PBLAD increased as experimental IAP rose (y = 0.83x + 0.5; R = 0.98; p < 0.001 at PEEP1). Minimal underestimation of IAP by PBLAD was observed (-2.5 ± 0.8 mm Hg at an IAP of 10-25 mm Hg). Applying PEEP10 did not significantly affect the correlation between experimental IAP and PBLAD. Approximately 50% of the PBLAD (in cm H2O) was reflected by changes in PPLAT, regardless of the PEEP level applied. Increasing IAP did not influence hemodynamics at any level of IAP generated. CONCLUSION With minimal underestimation, PBLAD measurements closely correlated with experimentally regulated IAP, independent of the PEEP level applied. For each PEEP level applied, a constant proportion (approximately 50%) of measured PBLAD (in cm H2O) was reflected in PPLAT. A higher safety threshold for PPLAT should be considered in the setting of IAH/ACS as the clinician considers changes in VT. A strategy of reducing VT to cap PPLAT at widely recommended values may not be warranted in the setting of increased IAP.
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Malbrain ML, De laet IE, De Waele JJ, Kirkpatrick AW. Intra-abdominal hypertension: Definitions, monitoring, interpretation and management. Best Pract Res Clin Anaesthesiol 2013; 27:249-70. [DOI: 10.1016/j.bpa.2013.06.009] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Accepted: 06/28/2013] [Indexed: 02/01/2023]
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Ameloot K, Gillebert C, Desie N, Malbrain MLNG. Hypoperfusion, shock states, and abdominal compartment syndrome (ACS). Surg Clin North Am 2012; 92:207-20, vii. [PMID: 22414408 DOI: 10.1016/j.suc.2012.01.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Cardiovascular dysfunction and failure are commonly encountered in patients with intra-abdominal hypertension or abdominal compartment syndrome. Accurate assessment and optimization of preload, afterload, and contractility are essential to restoring end-organ perfusion and maximizing patient survival. Application of a goal-directed resuscitation strategy, including abdominal decompression, when indicated, improves cardiac function, reverses end-organ failure, and minimizes intra-abdominal hypertension-related patient morbidity and mortality.
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Affiliation(s)
- Koen Ameloot
- Intensive Care Unit, Ziekenhuis Netwerk Antwerpen, Campus Stuivenberg/Erasmus, Antwerpen, Belgium
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20
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[Utility of monitoring intra-abdominal pressure in critically ill children]. An Pediatr (Barc) 2012; 77:254-60. [PMID: 22455949 DOI: 10.1016/j.anpedi.2012.01.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2011] [Revised: 01/22/2012] [Accepted: 01/31/2012] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVE To assess the usefulness of intra-abdominal pressure (IAP) measurement, by the intra-vesical method, in order to identify those patients at risk of developing intra-abdominal hypertension, as well as to analyse the factors that affect the IAP, and to determine their influence on the prognosis in critically ill patients. PATIENTS AND METHODS Prospective observational study in critically ill children in whom the IAP was monitored as soon as signs of intra-abdominal hypertension appeared. The following variables were analysed: age, sex, reason for admission, underlying disease, previous surgeries, blood pressure, heart rate, central venous pressure, urine output, inotropic therapy, sedation, muscle relaxation, mechanical ventilation, renal replacement techniques, extracorporeal membrane oxygenation, and mortality. RESULTS A total of 39 patients were studied. At 24hours from initiating the monitoring of IAP, 74.4% showed IAP ≥ 12mmHg, 33.3%>15mmHg, and 15.4%>20mmHg. After 48hours, 59% had intra-abdominal hypertension. There was a correlation between the central venous pressure (CVP) and IAP at 24 and 48hours (r=0.500, P=.001 and r=0.360, P=.040, respectively). There was no correlation with the other parameters. Only 9 patients required urgent decompression and none developed abdominal compartment syndrome. CONCLUSIONS IAP monitoring can be useful to diagnose and to promptly treat intra-abdominal hypertension, and thus to prevent the abdominal compartment syndrome. Therefore, it should be measured in critically ill children with abdominal pathology.
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Kirkpatrick AW, Pelosi P, De Waele JJ, Malbrain MLNG, Ball CG, Meade MO, Stelfox HT, Laupland KB. Clinical review: Intra-abdominal hypertension: does it influence the physiology of prone ventilation? Crit Care 2010; 14:232. [PMID: 20804560 PMCID: PMC2945095 DOI: 10.1186/cc9099] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Prone ventilation (PV) is a ventilatory strategy that frequently improves oxygenation and lung mechanics in critical illness, yet does not consistently improve survival. While the exact physiologic mechanisms related to these benefits remain unproven, one major theoretical mechanism relates to reducing the abdominal encroachment upon the lungs. Concurrent to this experience is increasing recognition of the ubiquitous role of intra-abdominal hypertension (IAH) in critical illness, of the relationship between IAH and intra-abdominal volume or thus the compliance of the abdominal wall, and of the potential difference in the abdominal influences between the extrapulmonary and pulmonary forms of acute respiratory distress syndrome. The present paper reviews reported data concerning intra-abdominal pressure (IAP) in association with the use of PV to explore the potential influence of IAH. While early authors stressed the importance of gravitationally unloading the abdominal cavity to unencumber the lung bases, this admonition has not been consistently acknowledged when PV has been utilized. Basic data required to understand the role of IAP/IAH in the physiology of PV have generally not been collected and/or reported. No randomized controlled trials or meta-analyses considered IAH in design or outcome. While the act of proning itself has a variable reported effect on IAP, abundant clinical and laboratory data confirm that the thoracoabdominal cavities are intimately linked and that IAH is consistently transmitted across the diaphragm--although the transmission ratio is variable and is possibly related to the compliance of the abdominal wall. Any proning-related intervention that secondarily influences IAP/IAH is likely to greatly influence respiratory mechanics and outcomes. Further study of the role of IAP/IAH in the physiology and outcomes of PV in hypoxemic respiratory failure is thus required. Theories relating inter-relations between prone positioning and the abdominal condition are presented to aid in designing these studies.
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Affiliation(s)
- Andrew W Kirkpatrick
- Regional Trauma Services, Foothills Medical Centre, 1403 29 Street NW, Calgary, Alberta, Canada T2N 2T9
- Department of Surgery, Calgary Heath Region and Foothills Medical Centre, 1403 29 Street NW, Calgary, Alberta, Canada T2N 2T9
- Department of Critical Care Medicine, Calgary Heath Region and Foothills Medical Centre, 1403 29 Street NW, Calgary, Alberta, Canada T2N 2T9
| | - Paolo Pelosi
- Department of Environment, Health and Safety, University of Insubria, c/o Villa Toeplitz Via G.B. Vico, 46 21100 Varese, Italy
| | - Jan J De Waele
- Department of Critical Care Medicine, Ghent University Hospital, De Pintelaan 185, 9000 Gent, Belgium
| | - Manu LNG Malbrain
- Intensive Care Unit, Ziekenhuis Netwerk Antwerpen, ZNA Stuivenberg, Lange Beeldekensstraat 267, B-2060 Antwerpen 6, Belgium
| | - Chad G Ball
- Regional Trauma Services, Foothills Medical Centre, 1403 29 Street NW, Calgary, Alberta, Canada T2N 2T9
- Department of Surgery, Calgary Heath Region and Foothills Medical Centre, 1403 29 Street NW, Calgary, Alberta, Canada T2N 2T9
| | - Maureen O Meade
- Department of Medicine, Room 2C10, McMaster University Medical Centre, 1200 Main Street West, Hamilton, Ontario, Canada L8N 3Z5
- Department of Clinical Epidemiology and Biostatistics, Room 2C10, McMaster University Medical Centre, 1200 Main Street West, Hamilton, Ontario, Canada L8N 3Z5
| | - Henry T Stelfox
- Department of Critical Care Medicine, Calgary Heath Region and Foothills Medical Centre, 1403 29 Street NW, Calgary, Alberta, Canada T2N 2T9
| | - Kevin B Laupland
- Department of Critical Care Medicine, Calgary Heath Region and Foothills Medical Centre, 1403 29 Street NW, Calgary, Alberta, Canada T2N 2T9
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Malbrain MLNG, De Laet I, De Waele J. The Polycompartment Syndrome: What’s all the Fuss About? Intensive Care Med 2010. [DOI: 10.1007/978-1-4419-5562-3_44] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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It's all in the gut: introducing the concept of acute bowel injury and acute intestinal distress syndrome .... Crit Care Med 2009; 37:365-6. [PMID: 19112309 DOI: 10.1097/ccm.0b013e3181935001] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Influence of increased intra-abdominal pressure on fluid responsiveness predicted by pulse pressure variation and stroke volume variation in a porcine model*. Crit Care Med 2009; 37:650-8. [DOI: 10.1097/ccm.0b013e3181959864] [Citation(s) in RCA: 98] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Functional hemodynamics and increased intra-abdominal pressure: Same thresholds for different conditions …?*. Crit Care Med 2009; 37:781-3. [DOI: 10.1097/ccm.0b013e318194c397] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Abstract
OBJECTIVE There has been an increased awareness of the presence and clinical importance of abdominal compartment syndrome. It is now appreciated that elevations of abdominal pressure occur in a wide variety of critically ill patients. Full-blown abdominal compartment syndrome is a clinical syndrome characterized by progressive intra-abdominal organ dysfunction resulting from elevated intra-abdominal pressure. This review provides a current, clinically focused approach to the diagnosis and management of abdominal compartment syndrome, with a particular emphasis on intensive care. METHODS Source data were obtained from a PubMed search of the medical literature, with an emphasis on the time period after 2000. PubMed "related articles" search strategies were likewise employed frequently. Additional information was derived from the Web site of the World Society of the Abdominal Compartment Syndrome (http://www.wsacs.org). SUMMARY AND CONCLUSIONS The detrimental impact of elevated intra-abdominal pressure, progressing to abdominal compartment syndrome, is recognized in both surgical and medical intensive care units. The recent international abdominal compartment syndrome consensus conference has helped to define, characterize, and raise awareness of abdominal compartment syndrome. Because of the frequency of this condition, routine measurement of intra-abdominal pressure should be performed in high-risk patients in the intensive care unit. Evidence-based interventions can be used to minimize the risk of developing elevated intra-abdominal pressure and to aggressively treat intra-abdominal hypertension when identified. Surgical decompression remains the gold standard for rapid, definitive treatment of fully developed abdominal compartment syndrome, but nonsurgical measures can often effectively affect lesser degrees of intra-abdominal hypertension and abdominal compartment syndrome.
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Affiliation(s)
- Gary An
- Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
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27
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Malbrain MLNG, Wilmer A. The polycompartment syndrome: towards an understanding of the interactions between different compartments! Intensive Care Med 2007; 33:1869-72. [PMID: 17786404 DOI: 10.1007/s00134-007-0843-4] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2007] [Accepted: 06/29/2007] [Indexed: 12/16/2022]
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De Laet I, Hoste E, Verholen E, De Waele JJ. The effect of neuromuscular blockers in patients with intra-abdominal hypertension. Intensive Care Med 2007; 33:1811-4. [PMID: 17594072 DOI: 10.1007/s00134-007-0758-0] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2006] [Accepted: 05/31/2007] [Indexed: 12/30/2022]
Abstract
OBJECTIVE The objective was to prospectively study the effect of neuromuscular blockers on intra-abdominal pressure (IAP) and a number of physiological variables in patients with increased IAP. DESIGN Prospective cohort study. SETTING Intensive care unit of the Ghent University Hospital. PATIENTS AND PARTICIPANTS Ten critically ill patients with intra-abdominal hypertension (IAH). INTERVENTIONS An intravenous bolus of cisatracurium at a dose of 0.15 mg/kg was administered, and IAP was measured just before administration and then at 15, 30, 60 and 120 min. The effect of cisatracurium on central venous pressure (CVP), mean arterial pressure (MAP), abdominal perfusion pressure (APP) and heart rate (HR) was also evaluated. Urinary output was recorded prior to administration and after 60 and 120 min. MEASUREMENTS AND RESULTS The median age of the patients was 50 years (interquartile range 38-65); five of them were male. APACHE II score on admission was 29 (IQR 14-37). IAH was caused by massive fluid resuscitation without obvious abdominal problem in five patients, by abdominal trauma in three, and by burns and bowel distension in one patient each. Bolus administration of cisatracurium significantly decreased IAP from 18 mmHg (16-20) at baseline to 14 mmHg (12-16) at 15 min (p = 0.01) and to 14 mmHg (13-17) at 30 min (p = 0.02). MAP, APP, CVP and HR remained unchanged. No significant effect on urinary output was observed. In all patients, IAP returned to the baseline level after 2 h. CONCLUSIONS Bolus administration of cisatracurium can be used to temporarily reduce IAP in patients with IAH.
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Affiliation(s)
- Inneke De Laet
- Intensive Care Unit 1K12-C, Ghent University Hospital, De Pintelaan 185, 9000, Gent, Belgium
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