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Meng L, Sun Y, Zhao X, Rasmussen M, Al-Tarshan Y, Meng DM, Liu Z, Adams DC, McDonagh DL. Noradrenaline-induced changes in cerebral blood flow in health, traumatic brain injury and critical illness: a systematic review with meta-analysis. Anaesthesia 2024; 79:978-991. [PMID: 38831595 DOI: 10.1111/anae.16313] [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] [Accepted: 04/22/2024] [Indexed: 06/05/2024]
Abstract
BACKGROUND Noradrenaline is a standard treatment for hypotension in acute care. The precise effects of noradrenaline on cerebral blood flow in health and disease remain unclear. METHODS We systematically reviewed and synthesised data from studies examining changes in cerebral blood flow in healthy participants and patients with traumatic brain injury and critical illness. RESULTS Twenty-eight eligible studies were included. In healthy subjects and patients without critical illness or traumatic brain injury, noradrenaline did not significantly change cerebral blood flow velocity (-1.7%, 95%CI -4.7-1.3%) despite a 24.1% (95%CI 19.4-28.7%) increase in mean arterial pressure. In patients with traumatic brain injury, noradrenaline significantly increased cerebral blood flow velocity (21.5%, 95%CI 11.0-32.0%), along with a 33.8% (95%CI 14.7-52.9%) increase in mean arterial pressure. In patients who were critically ill, noradrenaline significantly increased cerebral blood flow velocity (20.0%, 95%CI 9.7-30.3%), along with a 32.4% (95%CI 25.0-39.9%) increase in mean arterial pressure. Our analyses suggest intact cerebral autoregulation in healthy subjects and patients without critical illness or traumatic brain injury., and impaired cerebral autoregulation in patients with traumatic brain injury and who were critically ill. The extent of mean arterial pressure changes and the pre-treatment blood pressure levels may affect the magnitude of cerebral blood flow changes. Studies assessing cerebral blood flow using non-transcranial Doppler methods were inadequate and heterogeneous in enabling meaningful meta-analysis. CONCLUSIONS Noradrenaline significantly increases cerebral blood flow in humans with impaired, not intact, cerebral autoregulation, with the extent of changes related to the severity of functional impairment, the extent of mean arterial pressure changes and pre-treatment blood pressure levels.
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Affiliation(s)
- Lingzhong Meng
- Department of Anesthesia, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Yanhua Sun
- Department of Anesthesiology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Xu Zhao
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Mads Rasmussen
- Department of Anesthesiology, Section of Neuroanesthesia, Aarhus University Hospital, Aarhus, Denmark
| | | | - Deyi M Meng
- Choate Rosemary Hall School, Wallingford, CT, USA
| | - Ziyue Liu
- Department of Biostatistics and Health Data Science, Indiana University School of Medicine, Indianapolis, IN, USA
| | - David C Adams
- Department of Anesthesia, Indiana University School of Medicine, Indianapolis, IN, USA
| | - David L McDonagh
- Departments of Anesthesiology and Pain Management, Neurological Surgery, Neurology, UT Southwestern Medical Center, Dallas, TX, USA
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2
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Saugel B, Fletcher N, Gan TJ, Grocott MPW, Myles PS, Sessler DI. PeriOperative Quality Initiative (POQI) international consensus statement on perioperative arterial pressure management. Br J Anaesth 2024; 133:264-276. [PMID: 38839472 PMCID: PMC11282474 DOI: 10.1016/j.bja.2024.04.046] [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: 12/19/2023] [Revised: 03/09/2024] [Accepted: 04/05/2024] [Indexed: 06/07/2024] Open
Abstract
Arterial pressure monitoring and management are mainstays of haemodynamic therapy in patients having surgery. This article presents updated consensus statements and recommendations on perioperative arterial pressure management developed during the 11th POQI PeriOperative Quality Initiative (POQI) consensus conference held in London, UK, on June 4-6, 2023, which included a diverse group of international experts. Based on a modified Delphi approach, we recommend keeping intraoperative mean arterial pressure ≥60 mm Hg in at-risk patients. We further recommend increasing mean arterial pressure targets when venous or compartment pressures are elevated and treating hypotension based on presumed underlying causes. When intraoperative hypertension is treated, we recommend doing so carefully to avoid hypotension. Clinicians should consider continuous intraoperative arterial pressure monitoring as it can help reduce the severity and duration of hypotension compared to intermittent arterial pressure monitoring. Postoperative hypotension is often unrecognised and might be more important than intraoperative hypotension because it is often prolonged and untreated. Future research should focus on identifying patient-specific and organ-specific hypotension harm thresholds and optimal treatment strategies for intraoperative hypotension including choice of vasopressors. Research is also needed to guide monitoring and management strategies for recognising, preventing, and treating postoperative hypotension.
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Affiliation(s)
- Bernd Saugel
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Outcomes Research Consortium, Cleveland, OH, USA.
| | - Nick Fletcher
- Institute of Anesthesia and Critical Care, Cleveland Clinic London, London, UK
| | - Tong J Gan
- Division of Anesthesiology and Perioperative Medicine, Critical Care and Pain Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Michael P W Grocott
- Perioperative and Critical Care Theme, NIHR Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust/University of Southampton, Southampton, UK
| | - Paul S Myles
- Department of Anaesthesiology and Perioperative Medicine, Alfred Hospital and Monash University, Melbourne, VIC, Australia
| | - Daniel I Sessler
- Outcomes Research Consortium, Department of Anesthesiology, Cleveland Clinic, Cleveland, OH, USA
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3
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Yuriditsky E, Bakker J. What every intensivist should know about…Systolic arterial pressure targets in shock. J Crit Care 2024; 82:154790. [PMID: 38816174 DOI: 10.1016/j.jcrc.2024.154790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 12/10/2023] [Accepted: 12/17/2023] [Indexed: 06/01/2024]
Affiliation(s)
- Eugene Yuriditsky
- Division of Cardiology, Department of Medicine, NYU Grossman School of Medicine, New York, NY, USA.
| | - Jan Bakker
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, NYU Grossman School of Medicine, New York, USA; Department of Pulmonology and Critical Care, Columbia University Medical Center, New York, USA; Department of Intensive Care, Erasmus MC University Medical Center, Rotterdam, the Netherlands; Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
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4
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Hasanin A, Sanfilippo F, Dünser MW, Ahmed HM, Zieleskiewicz L, Myatra SN, Mostafa M. The MINUTES bundle for the initial 30 min management of undifferentiated circulatory shock: an expert opinion. Int J Emerg Med 2024; 17:96. [PMID: 39054461 PMCID: PMC11270766 DOI: 10.1186/s12245-024-00660-y] [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: 03/07/2024] [Accepted: 06/25/2024] [Indexed: 07/27/2024] Open
Abstract
Acute circulatory shock is a life-threatening emergency requiring an efficient and timely management plan, which varies according to shock etiology and pathophysiology. Specific guidelines have been developed for each type of shock; however, there is a need for a clear timeline to promptly implement initial life-saving interventions during the early phase of shock recognition and management. A simple, easily memorable bundle of interventions could facilitate standardized management with clear targets and specified timeline. The authors propose the "MINUTES" acronym which summarizes essential interventions which should be performed within the first 30 min following shock recognition. All the interventions in the MINUTES bundle are suitable for any patient with undifferentiated shock. In addition to the acronym, we suggest a timeline for each step, balancing the feasibility and urgency of each intervention. The MINUTES acronym includes seven sequential steps which should be performed in the first 30 min following shock recognition: Maintain "ABCs", INfuse vasopressors and/or fluids (to support hemodynamic/perfusion) and INvestigate with simple blood tests, Ultrasound to detect the type of shock, Treat the underlying Etiology, and Stabilize organ perfusion.
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Affiliation(s)
- Ahmed Hasanin
- Department of Anesthesia and Critical Care Medicine, Faculty of Medicine, Cairo University, Cairo, Egypt.
| | - Filippo Sanfilippo
- University Hospital Policlinico, G. Rodolico - San Marco, Catania, Italy
- Department of Surgery and Medical-Surgical Specialties, University of Catania, Catania, Italy
| | - Martin W Dünser
- Department of Anaesthesiology and Intensive Care Medicine, Kepler University Hospital and Johannes Kepler University, Krankenhausstrasse 9, Linz, Austria
| | | | - Laurent Zieleskiewicz
- Service d'anesthésie réanimation hôpital nord Marseille APHM, C2VN Aix Marseille Université, Marseille, France
| | - Sheila Nainan Myatra
- Department of Anaesthesiology, Critical Care and Pain, Tata Memorial Hospital, Homi Bhabha National University, Mumbai, India
| | - Maha Mostafa
- Department of Anesthesia and Critical Care Medicine, Faculty of Medicine, Cairo University, Cairo, Egypt
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5
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Dauterman L, Khan N, Tebbe C, Li J, Sun Y, Gunderman D, Liu Z, Adams DC, Sessler DI, Meng L. Efficacy and safety of intraoperative controlled hypotension: a systematic review and meta-analysis of randomised trials. Br J Anaesth 2024:S0007-0912(24)00350-7. [PMID: 39003203 DOI: 10.1016/j.bja.2024.06.008] [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: 03/11/2024] [Revised: 05/26/2024] [Accepted: 06/07/2024] [Indexed: 07/15/2024] Open
Abstract
BACKGROUND Intraoperative controlled hypotension improves surgical field visibility by reducing blood loss (efficacy) but poses potential risks linked to organ hypoperfusion (safety). The use of controlled hypotension persists despite increasing evidence of associations between intraoperative inadvertent hypotension and adverse outcomes. Therefore, we tested the hypothesis that the focus and results of intraoperative controlled hypertension research differ across anaesthesia and surgery investigators because of differing priorities. METHODS We systematically reviewed randomised trials comparing controlled hypotension with usual care with trials categorised by investigators' affiliation. RESULTS We identified 48 eligible trials, of which 37 were conducted by anaesthesia investigators and 11 by surgery investigators. For the primary outcome, 54% of the anaesthesia-led trials focused on safety, whereas all (100%) surgery-led trials focused on efficacy (P=0.004). Compared with usual care, mean arterial pressure in controlled hypotension was 23% (95% confidence interval [CI] 17-29%) lower in anaesthesia trials and 30% (95% CI 14-37%) lower in surgery trials; estimated blood loss was 44% (95% CI 30-55%) less in anaesthesia trials and 38% (95% CI 30-49%) less in surgery trials. Overall, blood loss was reduced by 43% (95% CI 32-53%), and trial sequential analysis supported an efficacy conclusion. Mean arterial pressure and estimated blood loss reductions were associated (R2=0.41, P=0.002). All trials were underpowered for safety outcomes, and none adequately evaluated myocardial or renal injury. CONCLUSIONS Anaesthesia researchers prioritised safety outcomes, whereas surgery researchers emphasised efficacy in controlled hypotension trials. Controlled hypotension significantly reduces blood loss. In contrast, safety outcomes were poorly studied. Given increasing observational evidence linking inadvertent hypotension to myocardial and renal injury, the safety of controlled hypotension remains to be addressed. SYSTEMATIC REVIEW PROTOCOL PROSPERO (CRD42023450397).
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Affiliation(s)
- Leah Dauterman
- Indiana University School of Medicine, Indiana University, Indianapolis, IN, USA
| | - Nabia Khan
- Indiana University School of Medicine, Indiana University, Indianapolis, IN, USA
| | - Connor Tebbe
- Indiana University School of Medicine, Indiana University, Indianapolis, IN, USA
| | - Jiangqiong Li
- Department of Biostatistics and Health Data Science, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Yanhua Sun
- Department of Anesthesiology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - David Gunderman
- Indiana University School of Medicine, Indiana University, Indianapolis, IN, USA
| | - Ziyue Liu
- Department of Biostatistics and Health Data Science, Indiana University School of Medicine, Indianapolis, IN, USA
| | - David C Adams
- Department of Anesthesia, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Daniel I Sessler
- Outcomes Research Consortium, Department of Anesthesiology, Cleveland Clinic, Cleveland, OH, USA
| | - Lingzhong Meng
- Department of Anesthesia, Indiana University School of Medicine, Indianapolis, IN, USA.
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Melgarejo JD. Phosphodiesterase Inhibitors in Cerebrovascular Perfusion and Pulsatility. Circ Res 2024; 135:332-334. [PMID: 38963870 DOI: 10.1161/circresaha.124.324954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/06/2024]
Affiliation(s)
- Jesus D Melgarejo
- Institute of Neuroscience, Neuro and Behavioral Integrated Service Unit and South Texas Alzheimer's Disease Research Center, School of Medicine, University of Texas Rio Grande Valley, Harlingen, TX
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Pongpanit K, Korakot M, Nitilap P, Puplab N, Charususin N, Yuenyongchaiwat K. Acute cardiac autonomic and hemodynamic responses to resistive breathing: Effect of loading type and intensity. Clin Physiol Funct Imaging 2024; 44:313-323. [PMID: 38497355 DOI: 10.1111/cpf.12877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 02/27/2024] [Accepted: 03/05/2024] [Indexed: 03/19/2024]
Abstract
OBJECTIVES This study aimed to assess the acute impact of distinct loading breathing types and intensities on cardiac autonomic function and hemodynamic responses in healthy young adults. METHODS A randomized, crossover trial involved 28 participants who underwent inspiratory resistive breathing, expiratory resistive breathing (ERB) and combined resistive breathing, each at 30% and 60% of maximal respiratory pressures. Data on heart rate variability (HRV) and hemodynamic parameters were collected during each trial. RESULTS The study revealed significant main and interaction effects for both the performed task and the intensity across all measured variables (all p < 0.001). ERB at 60% load demonstrated significantly higher HRV values in the standard deviation of normal-to-normal RR intervals, the square root of the mean squared difference of successive normal-to-normal RR intervals and high-frequency power, as well as significantly lower values in heart rate, stroke volume, stroke volume index, cardiac output, cardiac index, end-diastolic volume and end-diastolic volume index, compared to other loaded protocols (all p < 0.001). CONCLUSION These findings highlight the acute effect of type-specific and load-dependent resistive breathing on cardiac autonomic and hemodynamic functions, where ERB at 60% intensity showed the most significant cardiovagal modulation while causing the least hemodynamic alterations.
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Affiliation(s)
- Karan Pongpanit
- Department of Physical Therapy, Faculty of Allied Health Sciences, Thammasat University, Pathum Thani, Thailand
| | - Manta Korakot
- Department of Physical Therapy, Faculty of Allied Health Sciences, Thammasat University, Pathum Thani, Thailand
| | - Peerakan Nitilap
- Department of Physical Therapy, Faculty of Allied Health Sciences, Thammasat University, Pathum Thani, Thailand
| | - Nopparat Puplab
- Department of Physical Therapy, Faculty of Allied Health Sciences, Thammasat University, Pathum Thani, Thailand
| | - Noppawan Charususin
- Department of Physical Therapy, Faculty of Allied Health Sciences, Thammasat University, Pathum Thani, Thailand
- Thammasat University Research Unit in Physical Therapy in Cardiovascular and Respiratory Systems, Thammasat University, Pathum Thani, Thailand
| | - Kornanong Yuenyongchaiwat
- Department of Physical Therapy, Faculty of Allied Health Sciences, Thammasat University, Pathum Thani, Thailand
- Thammasat University Research Unit in Physical Therapy in Cardiovascular and Respiratory Systems, Thammasat University, Pathum Thani, Thailand
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8
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Zhao X, Zhang Y, Kou M, Wang Z, He Q, Wen Z, Chen J, Song Y, Wu S, Huang C, Huang W. The exploration of perioperative hypotension subtypes: a prospective, single cohort, observational pilot study. Front Med (Lausanne) 2024; 11:1358067. [PMID: 38952866 PMCID: PMC11215119 DOI: 10.3389/fmed.2024.1358067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 06/05/2024] [Indexed: 07/03/2024] Open
Abstract
Background Hypotension is a risk factor for postoperative complications, but evidence from randomized trials does not support that a higher blood pressure target always leads to optimized outcomes. The heterogeneity of underlying hemodynamics during hypotension may contribute to these contradictory results. Exploring the subtypes of hypotension can enable optimal management of intraoperative hypotension. Methods This is a prospective, observational pilot study. Patients who were ≥ 45 years old and scheduled to undergo moderate-to-high-risk noncardiac surgery were enrolled in this study. The primary objective of this pilot study was to investigate the frequency and distribution of perioperative hypotension and its subtypes (hypotension with or without cardiac output reduction). The exposure of hypotension and its subtypes in patients with and without myocardial or acute kidney injury were also explored. Results Sixty patients were included in the analysis. 83% (50/60) of the patients experienced perioperative hypotension. The median duration of hypotension for each patient was 8.0 [interquartile range, 3.1-23.3] minutes. Reduced cardiac output was present during 77% of the hypotension duration. Patients suffering from postoperative myocardial or acute kidney injury displayed longer duration and more extensive exposure in all hypotension subtypes. However, the percentage of different hypotension subtypes did not differ in patients with or without postoperative myocardial or acute kidney injury. Conclusion Perioperative hypotension was frequently accompanied by cardiac output reduction in moderate-to-high-risk noncardiac surgical patients. However, due to the pilot nature of this study, the relationship between hypotension subtypes and postoperative myocardial or acute kidney injury still needs further exploration. Clinical trial registration https://www.chictr.org.cn/showprojEN.html?proj=134260, CTR2200055929.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Shihui Wu
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Chanyan Huang
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Wenqi Huang
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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9
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Kaisti M, Panula T, Sirkiä J, Pänkäälä M, Koivisto T, Niiranen T, Kantola I. Hemodynamic Bedside Monitoring Instrument with Pressure and Optical Sensors: Validation and Modality Comparison. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2307718. [PMID: 38647263 PMCID: PMC11200005 DOI: 10.1002/advs.202307718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 01/19/2024] [Indexed: 04/25/2024]
Abstract
Results from two independent clinical validation studies for measuring hemodynamics at the patient's bedside using a compact finger probe are reported. Technology comprises a barometric pressure sensor, and in one implementation, additionally, an optical sensor for photoplethysmography (PPG) is developed, which can be used to measure blood pressure and analyze rhythm, including the continuous detection of atrial fibrillation. The capabilities of the technology are shown in several form factors, including a miniaturized version resembling a common pulse oximeter to which the technology could be integrated in. Several main results are presented: i) the miniature finger probe meets the accuracy requirements of non-invasive blood pressure instrument validation standard, ii) atrial fibrillation can be detected during the blood pressure measurement and in a continuous recording, iii) a unique comparison between optical and pressure sensing mechanisms is provided, which shows that the origin of both modalities can be explained using a pressure-volume model and that recordings are close to identical between the sensors. The benefits and limitations of both modalities in hemodynamic monitoring are further discussed.
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Affiliation(s)
- Matti Kaisti
- Department of ComputingUniversity of Turku, Faculty of TechnologyVesilinnantie 5Turku20500Finland
| | - Tuukka Panula
- Department of ComputingUniversity of Turku, Faculty of TechnologyVesilinnantie 5Turku20500Finland
| | - Jukka‐Pekka Sirkiä
- Department of ComputingUniversity of Turku, Faculty of TechnologyVesilinnantie 5Turku20500Finland
| | - Mikko Pänkäälä
- Department of ComputingUniversity of Turku, Faculty of TechnologyVesilinnantie 5Turku20500Finland
| | - Tero Koivisto
- Department of ComputingUniversity of Turku, Faculty of TechnologyVesilinnantie 5Turku20500Finland
| | - Teemu Niiranen
- Department of Internal MedicineUniversity of TurkuKiinamyllynkatu 4‐8Turku20521Finland
| | - Ilkka Kantola
- Division of MedicineTurku University HospitalKiinamyllynkatu 4‐8Turku20521Finland
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10
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Chen C, Liu L, Liu S, Ju M, Yu W, Song Q, Li M, Tang Y, Wang C. 24-h central pressure is a valuable predictor for left ventricular hypertrophy in non-dialysis patients with chronic kidney disease. Hypertens Res 2024; 47:1697-1706. [PMID: 38553645 DOI: 10.1038/s41440-024-01654-2] [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: 09/01/2023] [Revised: 02/23/2024] [Accepted: 03/01/2024] [Indexed: 05/23/2024]
Abstract
The current research on the relationship between 24-h central pressure and 24-h brachial pressure with left ventricular hypertrophy (LVH) is characterised by limited sample size and inconsistent findings. Furthermore, the association has never been explored in chronic kidney disease (CKD). A multicentre, cross-sectional study among non-dialysis patients with CKD was conducted. All participants underwent brachial and central ambulatory blood pressure monitoring using MobilO-Graph PWA, while trained cardiologists performed echocardiography. In this study, 2117 non-dialysis patients with CKD were examined. 24-h central systolic blood pressure with c2 calibration (24-h c2SBP) demonstrated a stronger association with left ventricular mass index and LVH compared with 24-h brachial systolic blood pressure (24-h bSBP) in the univariate and multivariate regression analyses. The multivariate net reclassification index (NRI) analysis revealed that 24-h c2SBP exhibited greater discriminatory power over 24-h bSBP (NRI = 0.310, 95% CI [0.192-0.429], P < 0.001). Applying 130/135 mmHg as the threshold for 24-h bSBP/c2SBP to cross-classify, the patients were divided into concordant normotension (1509 individuals), isolated brachial hypertension (155 individuals), isolated central hypertension (11 individuals), and concordant hypertension (442 individuals). With concordant normotension as the reference, the multivariable-adjusted ORs were 0.954 (95% CI, 0.534-1.640; P = 0.870) for isolated brachial hypertension and 2.585 (95%CI, 1.841-3.633; P < 0.001) for concordant hypertension. Among non-dialysis patients with CKD, 24-h c2SBP exhibits greater efficacy in identifying the presence of LVH compared with 24-h bSBP. The presence of LVH was greater in cases of concordant hypertension compared with cases of isolated brachial hypertension and concordant normotension.
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Affiliation(s)
- Cheng Chen
- Division of Nephrology, Department of Medicine, The Fifth Affiliated Hospital Sun Yat-Sen University, Zhuhai, 519000, Guangdong, China
| | - Lingling Liu
- Division of Nephrology, Department of Medicine, The Fifth Affiliated Hospital Sun Yat-Sen University, Zhuhai, 519000, Guangdong, China
| | - Sirui Liu
- Division of Nephrology, Department of Medicine, The Fifth Affiliated Hospital Sun Yat-Sen University, Zhuhai, 519000, Guangdong, China
| | - Menglei Ju
- Division of Nephrology, Department of Medicine, The Fifth Affiliated Hospital Sun Yat-Sen University, Zhuhai, 519000, Guangdong, China
| | - Wenjuan Yu
- Division of Nephrology, Department of Medicine, The Third Affiliated Hospital of Southern Medical University, Guangzhou, 510630, Guangdong, China
| | - Qirong Song
- Division of Nephrology, Department of Medicine, The Third Affiliated Hospital of Southern Medical University, Guangzhou, 510630, Guangdong, China
| | - Man Li
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital Sun Yat-Sen University, Zhuhai, 519000, Guangdong, China
| | - Ying Tang
- Division of Nephrology, Department of Medicine, The Third Affiliated Hospital of Southern Medical University, Guangzhou, 510630, Guangdong, China.
| | - Cheng Wang
- Division of Nephrology, Department of Medicine, The Fifth Affiliated Hospital Sun Yat-Sen University, Zhuhai, 519000, Guangdong, China.
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital Sun Yat-Sen University, Zhuhai, 519000, Guangdong, China.
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11
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Lv M, Du Y. Construction of a mortality risk prediction model for patients with acute diquat poisoning based on clinically accessible data. J Occup Med Toxicol 2024; 19:20. [PMID: 38773656 PMCID: PMC11110376 DOI: 10.1186/s12995-024-00416-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Accepted: 05/02/2024] [Indexed: 05/24/2024] Open
Abstract
BACKGROUND To examine the risk factors associated with mortality in individuals suffering from acute diquat poisoning and to develop an effective prediction model using clinical data. METHODS A retrospective review was conducted on the clinical records of 107 individuals who were hospitalized for acute diquat poisoning at a tertiary hospital in Sichuan Province between January 2017 and September 30, 2023, and further categorized into survivor and nonsurvivor groups based on their mortality status within 30 days of poisoning. The patient's demographic information, symptoms within 24 h of admission, and details of the initial clinical ancillary examination, as well as the APACHE II score, were documented. The model was developed using backward stepwise logistic regression, and its performance was assessed using receiver operating characteristic curves, calibration curves, Brier scores, decision curve analysis curves, and bootstrap replicates for internal validation. RESULTS Multifactorial logistic regression analysis revealed that blood pressure (hypertension, OR 19.73, 95% CI 5.71-68.16; hypotension, OR 61.38, 95% CI 7.40-509.51), white blood count (OR 1.35, 95% CI 1.20-1.52), red cell distribution width-standard deviation (OR 1.22, 95% CI 1.08-1.38), and glomerular filtration rate (OR 0.96, 95% CI 0.94-0.97) were identified as independent risk factors for mortality in patients with diquat. Subsequently, a nomogram with an area under the curve of 0.97 (95% CI: 0.93-1) was developed. Internal bootstrap resampling (1000 repetitions) confirmed the model's adequate discriminatory power, with an area under the curve of 0.97. Decision curve analysis demonstrated greater net gains for the nomogram, while the clinical impact curves indicated greater predictive validity. CONCLUSION The nomogram model developed in this study using available clinical data enhances the prediction of risk for DQ patients and has the potential to provide valuable clinical insights to guide patient treatment decisions.
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Affiliation(s)
- Mingxiu Lv
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yu Du
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China.
- Department of Emergency and Critical Care Medicine, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.
- Health Emergency Management Research Center, West China-PUMC C.C. Chen Institute of Health, Sichuan University, Chengdu, 610041, Sichuan, China.
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12
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Chen J, Zhu F, Wu Y, Yang J. Intraoperative hypotension and postoperative acute kidney injury: A network meta-analysis of randomized trials. Asian J Surg 2024:S1015-9584(24)00920-5. [PMID: 38760219 DOI: 10.1016/j.asjsur.2024.05.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Accepted: 05/02/2024] [Indexed: 05/19/2024] Open
Affiliation(s)
- Jiarui Chen
- Department of Anesthesiology, West China Hospital of Sichuan University, Sichuan Province, Chengdu, 610041, China; Department of Anesthesiology, Affiliated Hospital of Panzhihua University, Sichuan Province, Panzhihua, 617000, China
| | - Feng Zhu
- Department of Anesthesiology, Affiliated Hospital of Panzhihua University, Sichuan Province, Panzhihua, 617000, China
| | - YaLi Wu
- Department of Anesthesiology, West China Hospital of Sichuan University, Sichuan Province, Chengdu, 610041, China
| | - Jing Yang
- Department of Anesthesiology, West China Hospital of Sichuan University, Sichuan Province, Chengdu, 610041, China.
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Jia X, Zhu Y, Feng Y, Zhang W. Intraoperative hypotension does not increase postoperative mortality: A network meta-analysis of randomized trials. Asian J Surg 2024; 47:2463-2465. [PMID: 38290947 DOI: 10.1016/j.asjsur.2024.01.104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 01/19/2024] [Indexed: 02/01/2024] Open
Affiliation(s)
- Xue Jia
- Department of Anesthesiology, West China Hospital, Sichuan University, China
| | - Yihao Zhu
- Department of Anesthesiology, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
| | - Yan Feng
- Department of Anesthesiology, North Sichuan Medical College, Affiliated Hospital of North Sichuan Medical College, China
| | - Wensheng Zhang
- Department of Anesthesiology, West China Hospital, Sichuan University, China; Laboratory of Anesthesia and Critical Care Medicine, National-Local Joint Engineering Research Centre of Translational Medicine of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China.
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14
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Kant M, van Klei WA, Hollmann MW, Veelo DP, Kappen TH. The effect of proactive versus reactive treatment of hypotension on postoperative disability and outcome in surgical patients under anaesthesia (PRETREAT): clinical trial protocol and considerations. BJA OPEN 2024; 9:100262. [PMID: 38440053 PMCID: PMC10910055 DOI: 10.1016/j.bjao.2024.100262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 01/30/2024] [Indexed: 03/06/2024]
Abstract
Background Intraoperative hypotension has been extensively studied for its association with adverse outcomes. However, small sample sizes and methodological issues limit the causal inference that can be drawn. Methods In this multicentre, adaptive, randomised controlled trial, we will include 5000 adult inpatients scheduled for elective non-cardiac surgery under general or central neuraxial anaesthesia. Patients will be either randomly allocated to the intervention or care-as-usual group using computer-generated blocks of four, six, or eight, with an allocation ratio of 1:1. In the intervention arm patients will be divided into low-, intermediate-, and high-risk groups based on their likelihood to experience intraoperative hypotension, with resulting mean blood pressure targets of 70, 80, and 90 mm Hg, respectively. Anaesthesia teams will be provided with a clinical guideline on how to keep patients at their target blood pressure. During the first 6 months of the trial the intervention strategy will be evaluated and further revised in adaptation cycles of 3 weeks if necessary, to improve successful impact on the clinical process. The primary outcome is postoperative disability after 6 months measured with the World Health Organization Disability Assessment Score (WHODAS) 2.0 questionnaire. Ethics and dissemination This study protocol has been approved by the Medical Ethics Committee of the University Medical Centre Utrecht (20-749) and all protocol amendments will be communicated to the Medical Ethics Committee. The study protocol is in adherence with the Declaration of Helsinki and the guideline of Good Clinical Practice. Dissemination plans include publication in a peer-reviewed journal. Clinical trial registration The Dutch Trial Register, NL9391. Registered on 22 March 2021.
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Affiliation(s)
- Matthijs Kant
- Department of Anaesthesiology, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Wilton A. van Klei
- Department of Anaesthesiology, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Markus W. Hollmann
- Department of Anaesthesiology, Amsterdam University Medical Centre, Location University of Amsterdam, Amsterdam, The Netherlands
| | - Denise P. Veelo
- Department of Anaesthesiology, Amsterdam University Medical Centre, Location University of Amsterdam, Amsterdam, The Netherlands
| | - Teus H. Kappen
- Department of Anaesthesiology, University Medical Centre Utrecht, Utrecht, The Netherlands
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15
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Dong S, Wang Q, Wang S, Zhou C, Wang H. Hypotension prediction index for the prevention of hypotension during surgery and critical care: A narrative review. Comput Biol Med 2024; 170:107995. [PMID: 38325215 DOI: 10.1016/j.compbiomed.2024.107995] [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: 10/01/2023] [Revised: 12/17/2023] [Accepted: 01/13/2024] [Indexed: 02/09/2024]
Abstract
Surgeons and anesthesia clinicians commonly face a hemodynamic disturbance known as intraoperative hypotension (IOH), which has been linked to more severe postoperative outcomes and increases mortality rates. Increased occurrence of IOH has been positively associated with mortality and incidence of myocardial infarction, stroke, and organ dysfunction hypertension. Hence, early detection and recognition of IOH is meaningful for perioperative management. Currently, when hypotension occurs, clinicians use vasopressor or fluid therapy to intervene as IOH develops but interventions should be taken before hypotension occurs; therefore, the Hypotension Prediction Index (HPI) method can be used to help clinicians further react to the IOH process. This literature review evaluates the HPI method, which can reliably predict hypotension several minutes before a hypotensive event and is beneficial for patients' outcomes.
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Affiliation(s)
- Siwen Dong
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Qing Wang
- Department of Anesthesiology, Tongde Hospital of Zhejiang Province, Hangzhou 310012, China
| | - Shuai Wang
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Congcong Zhou
- Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China; Biosensor National Special Laboratory, College of Biomedical Engineering and Instrument Science, Zhejiang University, Hangzhou 310027, China
| | - Hongwei Wang
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou 310053, China; Department of Anesthesiology, Tongde Hospital of Zhejiang Province, Hangzhou 310012, China.
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16
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Oh C, Lee HC, Lee S, Shim MS, Yoon SB, Jung J, Yoon SH, Kim YH, Ko Y, Hong B, Ku Y. Continuous cardiac output estimation using a new modified Fick method during off-pump coronary artery bypass graft surgery: a retrospective observational study. J Anesth 2024; 38:1-9. [PMID: 37740733 DOI: 10.1007/s00540-023-03260-x] [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: 06/07/2023] [Accepted: 09/07/2023] [Indexed: 09/25/2023]
Abstract
PURPOSE Several technical aspects of the Fick method limit its use intraoperatively. A data-driven modification of the Fick method may enable its use in intraoperative settings. METHODS This two-center retrospective observational study included 57 (28 and 29 in each center) patients who underwent off-pump coronary artery bypass graft (OPCAB) surgery. Intraoperative recordings of physiological data were obtained and divided into training and test datasets. The Fick equation was used to calculate cardiac output (CO-Fick) using ventilator-determined variables, intraoperative hemoglobin level, and SvO2, with continuous thermodilution cardiac output (CCO) used as a reference. A modification CO-Fick was derived and validated: CO-Fick-AD, which adjusts the denominator of the original equation. RESULTS Increased deviation between CO-Fick and CCO was observed when oxygen extraction was low. The root mean square error of CO-Fick was decreased from 6.07 L/min to 0.70 L/min after the modification. CO-Fick-AD showed a mean bias of 0.17 (95% CI 0.00-0.34) L/min, with a 36.4% (95% CI 30.6-44.4%) error. The concordance rates of CO-Fick-AD ranged from 73.3 to 87.1% depending on the time interval and exclusion zone. CONCLUSIONS The original Fick method is not reliable when oxygen extraction is low, but a modification using data-driven approach could enable continuous estimation of cardiac output during the dynamic intraoperative period with minimal bias. However, further improvements in precision and trending ability are needed.
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Affiliation(s)
- Chahyun Oh
- Department of Anesthesiology and Pain Medicine, Chungnam National University Hospital, Daejeon, Korea
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chungnam National University, Daejeon, Korea
| | - Hyung-Chul Lee
- Department of Anesthesiology and Pain Medicine Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul, Korea
| | - Soomin Lee
- Department of Anesthesiology and Pain Medicine, Chungnam National University Hospital, Daejeon, Korea
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chungnam National University, Daejeon, Korea
| | - Man-Shik Shim
- Department of Thoracic & Cardiovascular Surgery, Chungnam National University Hospital, Daejeon, Korea
| | - Soo Bin Yoon
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul, Korea
| | - Jinsik Jung
- Department of Anesthesiology and Pain Medicine, Chungnam National University Hospital, Daejeon, Korea
| | - Seok-Hwa Yoon
- Department of Anesthesiology and Pain Medicine, Chungnam National University Hospital, Daejeon, Korea
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chungnam National University, Daejeon, Korea
| | - Yoon-Hee Kim
- Department of Anesthesiology and Pain Medicine, Chungnam National University Hospital, Daejeon, Korea
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chungnam National University, Daejeon, Korea
| | - Youngkwon Ko
- Department of Anesthesiology and Pain Medicine, Chungnam National University Hospital, Daejeon, Korea
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chungnam National University, Daejeon, Korea
| | - Boohwi Hong
- Department of Anesthesiology and Pain Medicine, Chungnam National University Hospital, Daejeon, Korea
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chungnam National University, Daejeon, Korea
- Big Data Center, Biomedical Research Institute, Chungnam National University Hospital, Daejeon, Korea
| | - Yunseo Ku
- Department of Biomedical Engineering, Chungnam National University College of Medicine, 266 Munhwa-Ro(St), Jung-Gu, Daejeon, 35015, Korea.
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17
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Zhang K, Wang L, Qi F, Meng T. Hypotensive Levels on Endoscopic Sinus Surgery Visibility: A Randomized Non-Inferiority Trial. Laryngoscope 2024; 134:569-576. [PMID: 37449719 DOI: 10.1002/lary.30867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 06/02/2023] [Accepted: 06/21/2023] [Indexed: 07/18/2023]
Abstract
OBJECTIVE Optimization of endoscopic sinus surgery (ESS) conditions is a common focus of interest for otolaryngologists and anesthesiologists. Relying on hypotension alone to achieve a bloodless field may not without risks. We sought to determine whether ESS is feasible in the context of moderate hypotension. METHODS This randomized non-inferiority trial enrolled 96 adult patients who were to undergo ESS. The patients were divided into two groups: Controlled hypotension group (n = 48, MAP reduction to 55-65 mmHg, minimum of 60% of baseline blood pressure) or Individualized hypotension group (n = 48, MAP reduction to 75-80% of baseline blood pressure). All participants were placed in 10° reverse Trendelenburg position during ESS, and cottonoid patties dammed with epinephrine was recommended to clear the operative field of bleeding. The two groups were compared according to Boezaart grading scale (BS) score, estimated blood loss, blood loss rate, arterial lactate level and postoperative recovery. RESULTS Both levels of intraoperative hypotension (62.2 ± 2.3 mmHg vs. 74.0 ± 2.8 mmHg) provided acceptable surgical conditions with no difference in mean BS scores [2.00 (1.88-2.33) vs. 2.00 (1.85-2.45), p = 0.926]. The 95% CI for median value differences in mean BS scores is lower than the preset non-inferiority margin. There were no differences in blood loss rate and estimated blood loss between two groups (p > 0.05) Postoperative arterial lactate and Ramsay sedation scores were significantly different between the two groups (p < 0.05). CONCLUSIONS In ESS, both levels of intraoperative hypotension, combined with position adjustment and low-concentration adrenaline to constrict nasal mucosal blood vessels, provided acceptable surgical conditions. LEVEL OF EVIDENCE 2 Laryngoscope, 134:569-576, 2024.
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Affiliation(s)
- Kangda Zhang
- Department of Anesthesiology, Qilu Hospital of Shandong University, Jinan, People's Republic of China
| | - Lichun Wang
- Department of Pain Management, Qilu Hospital of Shandong University, Jinan, People's Republic of China
| | - Feng Qi
- Department of Anesthesiology, Qilu Hospital of Shandong University, Jinan, People's Republic of China
| | - Tao Meng
- Department of Anesthesiology, Qilu Hospital of Shandong University, Jinan, People's Republic of China
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18
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Wang J, Lin F, Zeng M, Liu M, Zheng M, Ren Y, Li S, Yang X, Chen Y, Chen X, Sessler DI, Peng Y. Intraoperative blood pressure and cardiac complications after aneurysmal subarachnoid hemorrhage: a retrospective cohort study. Int J Surg 2024; 110:965-973. [PMID: 38016131 PMCID: PMC10871595 DOI: 10.1097/js9.0000000000000928] [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: 08/06/2023] [Accepted: 11/08/2023] [Indexed: 11/30/2023]
Abstract
BACKGROUND Previous studies report that intraoperative hypotension worsens outcomes after aneurysmal subarachnoid hemorrhage (aSAH). However, the hypotensive harm threshold for major adverse cardiovascular events (MACE) remains unclear. METHODS The authors included aSAH patients who had general anesthesia for aneurysmal clipping/coiling. MACE were defined by a composite of acute myocardial injury, acute myocardial infarction, and other cardiovascular complications identified by electrocardiogram and echocardiography. The authors initially used logistic regression and change-point analysis based on the second derivative to identify mean arterial pressure (MAP) of 75 mmHg as the harm threshold. Thereafter, our major exposure was MAP below 75 mmHg characterized by area, duration, and time-weighted average. The area below 75 mmHg represents the severity and duration of exposure and was defined as the sum of all areas below a specified threshold using the trapezoid rule. Time-weighted average MAP was derived by dividing area below the threshold by the duration of anesthesia. All analyses were adjusted for baseline risk factors including age greater than 70 years, female sex, severity of intracerebral hemorrhage, history of cardiovascular disease, and preoperative elevated myocardial enzymes. RESULTS Among 1029 patients enrolled, 254 (25%) developed postoperative MACE. Patients who experienced MACE were slightly older (59±11 vs. 54±11 years), were slightly more often women (69 vs. 58%), and had a higher prevalence of cardiovascular history (65 vs. 47%). Adjusted cardiovascular risk increased nearly linearly over the entire range of observed MAP. However, there was a slight inflexion at MAP of 75 mmHg. MACE was significantly associated with area [adjusted odds ratios (aOR) 1.004 per 10 mmHg.min, 95% CI: 1.001-1.007, P =0.002), duration (aOR 1.031 per 10 min, 95% CI: 1.009-1.054, P =0.006), and time-weighted average (aOR 3.516 per 10 mmHg, 95% CI: 1.818-6.801, P <0.001) of MAP less than 75 mmHg. CONCLUSIONS Lower blood pressures were associated with cardiovascular complications over the entire observed range, but worsened when MAP was less than 75 mmHg. Pending trial data to establish causality, it may be prudent to keep MAP above 75 mmHg in patients having surgical aSAH repairs to reduce the risk of MACE.
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Affiliation(s)
- Juan Wang
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Fa Lin
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Min Zeng
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Minying Liu
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Maoyao Zheng
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Yue Ren
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Shu Li
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Xiaodong Yang
- Institute of Computing Technology, Chinese Academy of Sciences, Beijing, People’s Republic of China
| | - Yiqiang Chen
- Institute of Computing Technology, Chinese Academy of Sciences, Beijing, People’s Republic of China
| | - Xiaolin Chen
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Daniel I. Sessler
- Department of Outcome Research, Cleveland Clinic, Cleveland, Ohio, USA
| | - Yuming Peng
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, People’s Republic of China
- Outcome Research Consortium, Cleveland, Ohio, USA
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19
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Meng L, Sun Y, Zhao X, Meng DM, Liu Z, Adams DC, McDonagh DL, Rasmussen M. Effects of phenylephrine on systemic and cerebral circulations in humans: a systematic review with mechanistic explanations. Anaesthesia 2024; 79:71-85. [PMID: 37948131 DOI: 10.1111/anae.16172] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/03/2023] [Indexed: 11/12/2023]
Abstract
We conducted a systematic review of the literature reporting phenylephrine-induced changes in blood pressure, cardiac output, cerebral blood flow and cerebral tissue oxygen saturation as measured by near-infrared spectroscopy in humans. We used the proportion change of the group mean values reported by the original studies in our analysis. Phenylephrine elevates blood pressure whilst concurrently inducing a reduction in cardiac output. Furthermore, despite increasing cerebral blood flow, it decreases cerebral tissue oxygen saturation. The extent of phenylephrine's influence on cardiac output (r = -0.54 and p = 0.09 in awake humans; r = -0.55 and p = 0.007 in anaesthetised humans), cerebral blood flow (r = 0.65 and p = 0.002 in awake humans; r = 0.80 and p = 0.003 in anaesthetised humans) and cerebral tissue oxygen saturation (r = -0.72 and p = 0.03 in awake humans; r = -0.24 and p = 0.48 in anaesthetised humans) appears closely linked to the magnitude of phenylephrine-induced blood pressure changes. When comparing the effects of phenylephrine in awake and anaesthetised humans, we found no evidence of a significant difference in cardiac output, cerebral blood flow or cerebral tissue oxygen saturation. There was also no evidence of a significant difference in effect on systemic and cerebral circulations whether phenylephrine was given by bolus or infusion. We explore the underlying mechanisms driving the phenylephrine-induced cardiac output reduction, cerebral blood flow increase and cerebral tissue oxygen saturation decrease. Individualised treatment approaches, close monitoring and consideration of potential risks and benefits remain vital to the safe and effective use of phenylephrine in acute care.
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Affiliation(s)
- L Meng
- Department of Anesthesia, Indiana University School of Medicine, IA, Indianapolis, USA
| | - Y Sun
- Department of Anesthesiology, Nanjing Drum Tower Hospital, Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - X Zhao
- Department of Anesthesiology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - D M Meng
- Choate Rosemary Hall School, CT, Wallingford, USA
| | - Z Liu
- Department of Biostatistics and Health Data Science, Indiana University School of Medicine, IA, Indianapolis, USA
| | - D C Adams
- Department of Anesthesia, Indiana University School of Medicine, IA, Indianapolis, USA
| | - D L McDonagh
- Departments of Anesthesiology and Pain Management, Neurological Surgery, Neurology and Neurotherapeutics, UT Southwestern Medical Center, TX, Dallas, USA
| | - M Rasmussen
- Department of Anesthesiology, Section of Neuroanesthesia, Aarhus University Hospital, Aarhus, Denmark
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20
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Wang F, Zhu Y. Intraoperative hypotension and postoperative outcomes. Comment on Br J Anaesth 2023; 131: 823-831. Br J Anaesth 2024; 132:178-180. [PMID: 37923583 DOI: 10.1016/j.bja.2023.10.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 10/05/2023] [Indexed: 11/07/2023] Open
Affiliation(s)
- Fei Wang
- Department of Anesthesiology, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Yihao Zhu
- Department of Anesthesiology, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China.
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21
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Robotti E, Barzoi G. Permissive Hypotension in Rhinoplasty: A Literature Review of Therapeutics and Associated Outcomes. Aesthetic Plast Surg 2023; 47:2639-2641. [PMID: 37474822 DOI: 10.1007/s00266-023-03498-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 06/29/2023] [Indexed: 07/22/2023]
Affiliation(s)
- Enrico Robotti
- Private Practice, Villa Sant'Apollonia, Via Motta 37, Bergamo, Italy.
| | - Giorgio Barzoi
- Private Practice, Villa Sant'Apollonia, Via Motta 37, Bergamo, Italy
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22
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Monge García MI, Jiménez López I, Lorente Olazábal JV, García López D, Fernández López AR, Pérez Carbonell A, Ripollés Melchor J. Postoperative arterial hypotension: the unnoticed enemy. REVISTA ESPANOLA DE ANESTESIOLOGIA Y REANIMACION 2023; 70:575-579. [PMID: 37652202 DOI: 10.1016/j.redare.2022.10.009] [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: 05/16/2022] [Accepted: 10/17/2022] [Indexed: 09/02/2023]
Abstract
Postoperative hypotension is a frequently underestimated health problem associated with high morbidity and mortality and increased use of health care resources. It also poses significant clinical, technological, and human challenges for healthcare. As it is a modifiable and avoidable risk factor, this document aims to increase its visibility, defining its clinical impact and the technological challenges involved in optimizing its management, taking clinical-technological, humanistic, and economic aspects into account.
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Affiliation(s)
- M I Monge García
- Hospital Universitario SAS Jerez, Jerez de la Frontera, Cádiz, Spain.
| | | | | | - D García López
- Hospital Universitario Marqués de Valdecilla, Santander, Spain
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23
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Chen H, Zhang X, Wang L, Zheng C, Cai S, Cheng W. Association of infraclavicular axillary vein diameter and collapsibility index with general anesthesia-induced hypotension in elderly patients undergoing gastrointestinal surgery: an observational study. BMC Anesthesiol 2023; 23:340. [PMID: 37814204 PMCID: PMC10561445 DOI: 10.1186/s12871-023-02303-w] [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: 07/01/2023] [Accepted: 09/28/2023] [Indexed: 10/11/2023] Open
Abstract
BACKGROUND The collapse index of inferior Vena Cava (IVC) and its diameter are important predictive tools for fluid responsiveness in patients, especially critically ones. The collapsibility of infraclavicular axillary vein (AXV) can be used as an alternative to the collapsibility of IVC (IVC-CI) to assess the patient's blood volume. METHODS A total of 188 elderly patients aged between 65 and 85 years were recruited for gastrointestinal surgery under general anesthesia. Ultrasound measurements AXV and IVC were performed before induction of general anesthesia. Patients were grouped in accordance to the hypotension after induction. ROC curves were used to analyze the predictive value of ultrasound measurements of AXV and IVC for hypotension after induction of anesthesia. Pearson linear correlation was used to assess the correlation of ultrasound measurements and decrease in mean arterial blood pressure (MAP). RESULTS The maximum diameter of AXV(dAXVmax) and the maximum diameter of IVC (dIVCmax) were not related to the percentage decrease in MAP; the collapsibility of AXV (AXV-CI) and IVC-CI were positively correlated with MAP changes (correlation coefficients:0.475, 0.577, respectively, p < 0.001). The areas under the curve (AUC) was 0.824 (0.759-0.889) for AXV-CI, and 0.874 (0.820-0.928) for IVC-CI. The optimal threshold for AXV-CI was 31.25% (sensitivity 71.7%, specificity 90.1%), while for IVC-CI was 36.60% (sensitivity 85.9%, specificity 79.0%). Hypotension and down-regulation of MAP during induction can be accurately predicted by AXV-Cl after correction for confounding variables. CONCLUSION Infraclavicular axillary vein diameter has no significant correlation with postanesthesia hypotension, whereas AXV-CI may predict postanesthesia hypotension during gastrointestinal surgery of the elderly. TRIAL REGISTRATION This study was registered in the Clinical Trial Registry of China on 05/06/2022 (ChiCTR2200060596).
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Affiliation(s)
- Huijuan Chen
- Department of Anesthesiology, Affiliated Huaian No.1 Hospital of Nanjing Medical University, 223300, Huaian, Jiangsu, China
| | - Xianlong Zhang
- Department of Anesthesiology, Affiliated Huaian No.1 Hospital of Nanjing Medical University, 223300, Huaian, Jiangsu, China
| | - Lei Wang
- Department of Anesthesiology, Affiliated Huaian No.1 Hospital of Nanjing Medical University, 223300, Huaian, Jiangsu, China
| | - Cuijuan Zheng
- Department of Anesthesiology, Affiliated Huaian No.1 Hospital of Nanjing Medical University, 223300, Huaian, Jiangsu, China
| | - Shenquan Cai
- Department of Anesthesiology, Affiliated Jinling Hospital, Medical School, Nanjing University, 210002, Nanjing, Jiangsu, China
| | - Wei Cheng
- Department of Anesthesiology, Affiliated Huaian No.1 Hospital of Nanjing Medical University, 223300, Huaian, Jiangsu, China.
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24
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Flores R, Lopes J, Caridade S. End-Organ Damage in Hypertension: An Insight on a Differentiated Outpatient Consultation. Cureus 2023; 15:e45105. [PMID: 37842465 PMCID: PMC10569229 DOI: 10.7759/cureus.45105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/11/2023] [Indexed: 10/17/2023] Open
Abstract
OBJECTIVE The objective of this study was to determine the prevalence of end-organ damage in hypertensive patients attending an outpatient consultation. MATERIALS AND METHODS Patients were selected from an outpatient consultation at a tertiary hospital care center. All patients who consulted between July 2022 and March 2023 were included. Data on demographic characteristics, blood pressure records, hypertension etiology, medication use, and the presence of target organ damage were collected. RESULTS A total of 73 patients were included in the study, with 34 patients being male (46.6%) and 39 patients being female (53.4%). The mean age of the patients was 49.8 years. Among the cases of hypertension, 14 (19.2%) were classified as secondary arterial hypertension (AH). The most common cause of secondary AH was obstructive sleep apnea (OSA) (42.9%). Approximately 23.2% of patients had documented end-organ damage potentially related to hypertension, with kidney disease being the most frequent (n = 10, 13.7%). The most commonly prescribed pharmacological classes were angiotensin-converting enzyme inhibitors and angiotensin II receptor antagonists (n = 46, 63%). CONCLUSION Despite numerous studies and trials on arterial hypertension, it remains a significant contributor to morbidity and mortality, necessitating the continued awareness of its long-term implications.
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Affiliation(s)
- Rui Flores
- Cardiology, Hospital de Braga, Braga, PRT
| | - Joana Lopes
- Internal Medicine, Hospital de Braga, Braga, PRT
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Michard F, Futier E. Predicting intraoperative hypotension: from hope to hype and back to reality. Br J Anaesth 2023; 131:199-201. [PMID: 36997473 DOI: 10.1016/j.bja.2023.02.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 02/25/2023] [Accepted: 02/27/2023] [Indexed: 03/30/2023] Open
Abstract
The analysis of arterial pressure waveforms with machine learning algorithms has been proposed to predict intraoperative hypotension. The ability to forecast arterial hypotension 5-15 min ahead of the fall in blood pressure allows clinicians to be pro-active instead of reactive, and could potentially decrease postoperative morbidity. However, the predictive value of machine learning algorithms has been overestimated due to selection bias in several clinical studies, and they might not be superior to mere observation of arterial pressure. Continuous blood pressure monitoring enables immediate detection of hypotension, and giving fluid, vasopressors or inotropes to patients who are not yet (and might never become) hypotensive based on an algorithm is questionable. Finally, recent prospective interventional studies suggest that reducing intraoperative hypotension does not improve postoperative outcomes.
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Affiliation(s)
| | - Emmanuel Futier
- Department of Anesthesia and Critical Care, Université Clermont Auvergne, Hopital d'Estaing, Clermont-Ferrand, France
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Chu Y, Tang K, Hsu YC, Huang T, Wang D, Li W, Savitz SI, Jiang X, Shams S. Non-invasive arterial blood pressure measurement and SpO 2 estimation using PPG signal: a deep learning framework. BMC Med Inform Decis Mak 2023; 23:131. [PMID: 37480040 PMCID: PMC10362790 DOI: 10.1186/s12911-023-02215-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 06/22/2023] [Indexed: 07/23/2023] Open
Abstract
BACKGROUND Monitoring blood pressure and peripheral capillary oxygen saturation plays a crucial role in healthcare management for patients with chronic diseases, especially hypertension and vascular disease. However, current blood pressure measurement methods have intrinsic limitations; for instance, arterial blood pressure is measured by inserting a catheter in the artery causing discomfort and infection. METHOD Photoplethysmogram (PPG) signals can be collected via non-invasive devices, and therefore have stimulated researchers' interest in exploring blood pressure estimation using machine learning and PPG signals as a non-invasive alternative. In this paper, we propose a Transformer-based deep learning architecture that utilizes PPG signals to conduct a personalized estimation of arterial systolic blood pressure, arterial diastolic blood pressure, and oxygen saturation. RESULTS The proposed method was evaluated with a subset of 1,732 subjects from the publicly available ICU dataset MIMIC III. The mean absolute error is 2.52 ± 2.43 mmHg for systolic blood pressure, 1.37 ± 1.89 mmHg for diastolic blood pressure, and 0.58 ± 0.79% for oxygen saturation, which satisfies the requirements of the Association of Advancement of Medical Instrumentation standard and achieve grades A for the British Hypertension Society standard. CONCLUSIONS The results indicate that our model meets clinical standards and could potentially boost the accuracy of blood pressure and oxygen saturation measurement to deliver high-quality healthcare.
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Affiliation(s)
- Yan Chu
- McWilliams School of Biomedical Informatics, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Kaichen Tang
- McWilliams School of Biomedical Informatics, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Yu-Chun Hsu
- McWilliams School of Biomedical Informatics, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Tongtong Huang
- McWilliams School of Biomedical Informatics, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Dulin Wang
- McWilliams School of Biomedical Informatics, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Wentao Li
- McWilliams School of Biomedical Informatics, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Sean I Savitz
- Institute for Stroke and Cerebrovascular Disease, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Xiaoqian Jiang
- McWilliams School of Biomedical Informatics, University of Texas Health Science Center at Houston, Houston, TX, USA
- Institute for Stroke and Cerebrovascular Disease, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Shayan Shams
- McWilliams School of Biomedical Informatics, University of Texas Health Science Center at Houston, Houston, TX, USA.
- Institute for Stroke and Cerebrovascular Disease, University of Texas Health Science Center at Houston, Houston, TX, USA.
- Department of Applied Data Science, San Jose State University, One Washington Sq, San Jose, CA, 95192, USA.
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Peng Y, Wu B, Xing C, Mao H. Severe fluctuation in mean perfusion pressure is associated with increased risk of in-hospital mortality in critically ill patients with central venous pressure monitoring: A retrospective observational study. PLoS One 2023; 18:e0287046. [PMID: 37310966 DOI: 10.1371/journal.pone.0287046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 05/28/2023] [Indexed: 06/15/2023] Open
Abstract
BACKGROUND The mean perfusion pressure (MPP) was recently proposed to personalize tissue perfusion pressure management in critically ill patients. Severe fluctuation in MPP may be associated with adverse outcomes. We sought to determine if higher MPP variability was correlated with increased mortality in critically ill patients with CVP monitoring. METHODS We designed a retrospective observational study and analyzed data stored in the eICU Collaborative Research Database. Validation test was conducted in MIMIC-III database. The exposure was the coefficient of variation (CV) of MPP in the primary analyses, using the first 24 hours MPP data recorded within 72 hours in the first ICU stay. Primary endpoint was in-hospital mortality. RESULTS A total of 6,111 patients were included. The in-hospital mortality of 17.6% and the median MPP-CV was 12.3%. Non-survivors had significantly higher MPP-CV than survivors (13.0% vs 12.2%, p<0.001). After accounting for confounders, the highest MPP-CV in decile (CV > 19.2%) were associated with increased risk of hospital mortality compared with those in the fifth and sixth decile (adjusted OR: 1.38, 95% Cl: 1.07-1.78). These relationships remained remarkable in the multiple sensitivity analyses. The validation test with 4,153 individuals also confirmed the results when MPP-CV > 21.3% (adjusted OR: 1.46, 95% Cl: 1.05-2.03). CONCLUSIONS Severe fluctuation in MPP was associated with increased short-term mortality in critically ill patients with CVP monitoring.
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Affiliation(s)
- Yudie Peng
- Department of Nephrology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China
| | - Buyun Wu
- Department of Nephrology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China
| | - Changying Xing
- Department of Nephrology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China
| | - Huijuan Mao
- Department of Nephrology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China
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Kouz K, Monge García MI, Cerutti E, Lisanti I, Draisci G, Frassanito L, Sander M, Ali Akbari A, Frey UH, Grundmann CD, Davies SJ, Donati A, Ripolles-Melchor J, García-López D, Vojnar B, Gayat É, Noll E, Bramlage P, Saugel B. Intraoperative hypotension when using hypotension prediction index software during major noncardiac surgery: a European multicentre prospective observational registry (EU HYPROTECT). BJA OPEN 2023; 6:100140. [PMID: 37588176 PMCID: PMC10430826 DOI: 10.1016/j.bjao.2023.100140] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 03/19/2023] [Accepted: 03/28/2023] [Indexed: 08/18/2023]
Abstract
Background Intraoperative hypotension is associated with organ injury. Current intraoperative arterial pressure management is mainly reactive. Predictive haemodynamic monitoring may help clinicians reduce intraoperative hypotension. The Acumen™ Hypotension Prediction Index software (HPI-software) (Edwards Lifesciences, Irvine, CA, USA) was developed to predict hypotension. We built up the European multicentre, prospective, observational EU HYPROTECT Registry to describe the incidence, duration, and severity of intraoperative hypotension when using HPI-software monitoring in patients having noncardiac surgery. Methods We enrolled 749 patients having elective major noncardiac surgery in 12 medical centres in five European countries. Patients were monitored using the HPI-software. We quantified hypotension using the time-weighted average MAP <65 mm Hg (primary endpoint), the proportion of patients with at least one ≥1 min episode of a MAP <65 mm Hg, the number of ≥1 min episodes of a MAP <65 mm Hg, and duration patients spent below a MAP of 65 mm Hg. Results We included 702 patients in the final analysis. The median time-weighted average MAP <65 mm Hg was 0.03 (0.00-0.20) mm Hg. In addition, 285 patients (41%) had no ≥1 min episode of a MAP <65 mm Hg; 417 patients (59%) had at least one. The median number of ≥1 min episodes of a MAP <65 mm Hg was 1 (0-3). Patients spent a median of 2 (0-9) min below a MAP of 65 mm Hg. Conclusions The median time-weighted average MAP <65 mm Hg was very low in patients in this registry. This suggests that using HPI-software monitoring may help reduce the duration and severity of intraoperative hypotension in patients having noncardiac surgery.
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Affiliation(s)
- Karim Kouz
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | | | - Elisabetta Cerutti
- Department of Anesthesia, Transplant and Surgical Intensive Care, Azienda Ospedaliero Universitaria Delle Marche, Ancona, Italy
| | - Ivana Lisanti
- Department of Anesthesia, Transplant and Surgical Intensive Care, Azienda Ospedaliero Universitaria Delle Marche, Ancona, Italy
| | - Gaetano Draisci
- Department of Emergency, Intensive Care Medicine and Anesthesia, IRCCS Fondazione Policlinico Universitario Agostino Gemelli, Rome, Italy
| | - Luciano Frassanito
- Department of Emergency, Intensive Care Medicine and Anesthesia, IRCCS Fondazione Policlinico Universitario Agostino Gemelli, Rome, Italy
| | - Michael Sander
- Department of Anaesthesiology, Intensive Care Medicine and Pain Medicine, University Hospital Giessen, Justus-Liebig University Giessen, Giessen, Germany
| | - Amir Ali Akbari
- Department of Anaesthesiology, Intensive Care Medicine and Pain Medicine, University Hospital Giessen, Justus-Liebig University Giessen, Giessen, Germany
| | - Ulrich H. Frey
- Department of Anesthesiology, Intensive Care, Pain and Palliative Care, Marien Hospital Herne, Ruhr-University Bochum, Bochum, Germany
| | - Carla Davina Grundmann
- Department of Anesthesiology, Intensive Care, Pain and Palliative Care, Marien Hospital Herne, Ruhr-University Bochum, Bochum, Germany
| | - Simon James Davies
- York and Scarborough Teaching Hospitals NHS Foundation Trust, York, UK
- Centre for Health and Population Sciences, Hull York Medical School, York, UK
| | - Abele Donati
- Department of Biomedical Sciences and Public Health, Università Politecnica Delle Marche, Ancona, Italy
| | - Javier Ripolles-Melchor
- Anesthesia and Critical Care Department, Hospital Universitario Infanta Leonor, Madrid, Spain
| | - Daniel García-López
- Department of Anaesthesiology and Reanimation, University Hospital Marqués de Valdecilla, Santander, Spain
| | - Benjamin Vojnar
- Department of Anaesthesiology and Intensive Care Medicine, University Hospital Marburg, Marburg, Germany
| | - Étienne Gayat
- Université Paris Cité, INSERM, Paris, France
- Department of Anesthesia and Critical Care Medicine, Hôpital Lariboisière, Paris, France
| | - Eric Noll
- Department of Anesthesiology and Intensive Care, Hôpital de Hautepierre, Les Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Peter Bramlage
- Institute for Pharmacology and Preventive Medicine, Cloppenburg, Germany
| | - Bernd Saugel
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Outcomes Research Consortium, Cleveland, OH, USA
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Czajka S, Putowski Z, Krzych ŁJ. Post-induction hypotension and intraoperative hypotension as potential separate risk factors for the adverse outcome: a cohort study. J Anesth 2023; 37:442-450. [PMID: 37083989 DOI: 10.1007/s00540-023-03191-7] [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: 11/14/2022] [Accepted: 03/31/2023] [Indexed: 04/22/2023]
Abstract
PURPOSE Intraoperative hypotension (IOH) is associated with organ hypoperfusion. There are different underlying causes of IOH depending on the phase of surgery. Post-induction hypotension (PIH) and early-intraoperative hypotension tend to be frequently differentiated. We aimed to explore further different phases of IOH and verify whether they are differently associated with postoperative complications. METHODS Patients undergoing abdominal surgery between October 2018 and July 2019 in a university hospital were screened. Post-induction hypotension was defined as MAP ≤ 65 mmHg between the induction of anaesthesia and the onset of surgery. Hypotension during surgery (IOH) was defined as MAP ≤ 65 mmHg occurring between the onset of surgery and its completion. Acute kidney injury, stroke or transient ischaemic attack, delirium, and myocardial infarction were considered as the outcome. RESULTS We enrolled 508 patients (219 males, median age 62 years). 158 subjects (31.1%) met PIH, 171 (33.7%) met IOH criteria, and 67 (13.2%) patients experienced both. PIH time accounted for 22.8% of the total hypotension time and 29.7% of the IOH time. The IOH time accounted for 5.17% of the total intraoperative time, while PIH for 8.91% of the pre-incision time. Female sex, lower height, body mass and lower pre-induction BP (SBP and MAP) were found to be associated with the incidence of PIH. The negative outcome was observed in 38 (7.5%) patients. Intraoperative MAP ≤ 65 mmHg, longer duration of the procedure (≥ 230 min), chronic arterial hypertension and age were associated with the presence of the outcome (p < 0.01 each). CONCLUSIONS The presence of IOH defined as MAP ≤ 65 mmHg is relevant to post-operative organ complications, the presence of PIH does not appear to be of such significance. Because cumulative duration of PIH and IOH differs significantly, especially in long-lasting procedures, direct comparison of the influence of PIH and IOH on outcome separately may be biased and should be taken into account in data interpretation. Further research is needed to deeply investigate this phenomenon.
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Affiliation(s)
- Szymon Czajka
- Department of Anaesthesiology and Intensive Care, School of Medicine in Katowice, Medical University of Silesia, 14 Medykow Street, 40-752, Katowice, Poland.
| | - Zbigniew Putowski
- Students' Scientific Society, Department of Anaesthesiology and Intensive Care, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland
| | - Łukasz J Krzych
- Department of Anaesthesiology and Intensive Care, School of Medicine in Katowice, Medical University of Silesia, 14 Medykow Street, 40-752, Katowice, Poland
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Zhong X, Li H, Chen Q, Hao P, Chen T, Mai H, Zhang K, Zhong G, Guo R, Cheng H, Jiang B, Zhu S, Zhuang S, Li H, Chen Y, He Q. Association between different MAP levels and 30-day mortality in sepsis patients: a propensity-score-matched, retrospective cohort study. BMC Anesthesiol 2023; 23:116. [PMID: 37024806 PMCID: PMC10077659 DOI: 10.1186/s12871-023-02047-7] [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: 10/07/2022] [Accepted: 03/14/2023] [Indexed: 04/08/2023] Open
Abstract
BACKGROUND Sepsis is a life-threatening organ dysfunction caused by the infection-related host response disorder. Adequate mean arterial pressure is an important prerequisite of tissue and organ perfusion, which runs through the treatment of sepsis patients, and an appropriate mean arterial pressure titration in the early-stage correlates to the positive outcome of the treatment. Therefore, in the present study, we aimed to elucidate the relationship between early mean arterial pressure levels and short-term mortality in sepsis patients. METHODS We included all suspected sepsis patients from MIMIC-III database with average mean arterial pressure ≥ 60 mmHg on the first day of intensive care unit stay. Those patients were then divided into a permissive low-mean arterial pressure group (60-65 mmHg) and a high-mean arterial pressure group (> 65 mmHg). Multivariate Cox regression analysis was conducted to analyze the relationship between MAP level and 30-day, 60-day, and 100-day mortality of suspected sepsis patients in the two groups. Propensity score matching, inverse probability of treatment weighing, standardized mortality ratio weighting, PA weighting, overlap weighting, and doubly robust analysis were used to verify our results. RESULTS A total of 14,031 suspected sepsis patients were eligible for inclusion in our study, among which 1305 (9.3%) had an average first-day mean arterial pressure of 60-65 mmHg, and the remaining 12,726 patients had an average first-day mean arterial pressure of more than 65 mmHg. The risk of 30-day mortality was reduced in the high mean arterial pressure group compared with the permissive low-mean arterial pressure group (HR 0.67 (95% CI 0.60-0.75; p < 0.001)). The higher mean arterial pressure was also associated with lower 60-day and 100-day in-hospital mortality as well as with shorter duration of intensive care unit stay. Patients in the high-mean arterial pressure group also had more urine output on the first and second days of intensive care unit admission. CONCLUSIONS After risk adjustment, the initial mean arterial pressure of above 65 mmHg was associated with reduced short-term mortality, shorter intensive care unit stay, and higher urine volume in the first two days among patients with sepsis.
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Affiliation(s)
- Xiaoxin Zhong
- Department of Surgical Intensive Care Unit, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No.107, Yanjiang West Road, Yuexiu District, Guangzhou, 510120, China
| | - Haifeng Li
- Department of Pediatric, The Third Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, No.600, Shipai Street, Tianhe District, Guangzhou, 510000, China
| | - Qian Chen
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No.107, Yanjiang West Road, Yuexiu District, Guangzhou, 510120, China
| | - Peng Hao
- Department of Surgical Intensive Care Unit, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No.107, Yanjiang West Road, Yuexiu District, Guangzhou, 510120, China
| | - Tong Chen
- Department of Surgical Intensive Care Unit, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No.107, Yanjiang West Road, Yuexiu District, Guangzhou, 510120, China
| | - Hantao Mai
- Department of Surgical Intensive Care Unit, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No.107, Yanjiang West Road, Yuexiu District, Guangzhou, 510120, China
| | - Kelin Zhang
- Department of Surgical Intensive Care Unit, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No.107, Yanjiang West Road, Yuexiu District, Guangzhou, 510120, China
| | - Guifang Zhong
- Department of Surgical Intensive Care Unit, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No.107, Yanjiang West Road, Yuexiu District, Guangzhou, 510120, China
| | - Ruilian Guo
- Department of Surgical Intensive Care Unit, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No.107, Yanjiang West Road, Yuexiu District, Guangzhou, 510120, China
| | - Huihua Cheng
- Department of Surgical Intensive Care Unit, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No.107, Yanjiang West Road, Yuexiu District, Guangzhou, 510120, China
| | - Benhua Jiang
- Department of Surgical Intensive Care Unit, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No.107, Yanjiang West Road, Yuexiu District, Guangzhou, 510120, China
| | - Sicong Zhu
- Department of Surgical Intensive Care Unit, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No.107, Yanjiang West Road, Yuexiu District, Guangzhou, 510120, China
| | - Suyuan Zhuang
- Department of Surgical Intensive Care Unit, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No.107, Yanjiang West Road, Yuexiu District, Guangzhou, 510120, China
| | - Haoran Li
- Department of Surgical Intensive Care Unit, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No.107, Yanjiang West Road, Yuexiu District, Guangzhou, 510120, China
| | - Yantao Chen
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No.107, Yanjiang West Road, Yuexiu District, Guangzhou, 510120, China.
| | - Qing He
- Department of Surgical Intensive Care Unit, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, No.107, Yanjiang West Road, Yuexiu District, Guangzhou, 510120, China.
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Wang L, Lin H, Zhao Z, Chen L, Wu L, Liu T, Li J, Huang CC, Peng Y, Lo CYZ, Gao X. Sex disparity of cerebral white matter hyperintensity in the hypertensive elderly: The Shanghai Changfeng study. Hum Brain Mapp 2023; 44:2099-2108. [PMID: 36583389 PMCID: PMC9980881 DOI: 10.1002/hbm.26196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 12/04/2022] [Accepted: 12/18/2022] [Indexed: 12/31/2022] Open
Abstract
White matter hyperintensity (WMH) is associated with vascular hemodynamic alterations and reflects white matter injury. To date, the sex difference of tract-specific WMH and the relationship between high blood pressure (BP) and tract-specific WMH remain unclear. We recruited 515 subjects from the Shanghai Changfeng study (range 53-89 years, mean age 67.33 years). Systolic and diastolic blood pressure (SBP and DBP) were collected and used to calculate pulse pressure (PP). Magnetic resonance T1 and T2 FLAIR images were acquired to measure WMH and calculate WMH index. The ANCOVA test was performed to test the difference between sexes, and the linear regression model was used to examine the associations between BP and WMH index. Men showed higher WMH index than women in all white matter tracts (p < .001, respectively) except for the bilateral superior longitudinal fasciculus (SLF) and its left temporal part (tSLF). High SBP and PP was associated with a lower WMH index on the left corticospinal tract (CST), SLF, tSLF and right cingulum in hippocampus (p ≤ .001, respectively) in women, while high DBP was associated with a higher WMH index on the bilateral CST (left p < .001; right p = .001), left inferior longitudinal fasciculus (p < .001) and inferior fronto-occipital fasciculus (p = .002) in men. Men tend to have more WMH compared to women. A high SBP/PP relates to a lower WMH burden in women. This suggests that women could benefit from higher blood pressure in older age.
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Affiliation(s)
- Liangqi Wang
- Department of Radiology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, Shanghai, China.,Human Phenome Institute, Fudan University, Shanghai, China.,School of Life Sciences, Fudan University, Shanghai, China
| | - Huandong Lin
- Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, Shanghai, China.,Human Phenome Institute, Fudan University, Shanghai, China.,Institute for Metabolic Diseases, Fudan University, Shanghai, China
| | - Zehua Zhao
- Department of Radiology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lingyan Chen
- Department of Geriatrics, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Li Wu
- Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, Shanghai, China.,Institute for Metabolic Diseases, Fudan University, Shanghai, China
| | - Ting Liu
- Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jing Li
- Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Chu-Chung Huang
- School of Psychology and Cognitive Science, Institute of Cognitive Neuroscience, East China Normal University, Shanghai, China
| | - Yifeng Peng
- Department of Radiology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Chun-Yi Zac Lo
- Institute of Science and Technology for Brain Inspired Intelligence, Fudan University, Shanghai, China
| | - Xin Gao
- Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, Shanghai, China.,Human Phenome Institute, Fudan University, Shanghai, China.,Institute for Metabolic Diseases, Fudan University, Shanghai, China
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Yu Y, Wu H, Liu C, Zhang C, Song Y, Ma Y, Li H, Lou J, Liu Y, Cao J, Zhang H, Xu Z, Evans RG, Duan C, Mi W. Intraoperative renal desaturation and postoperative acute kidney injury in older patients undergoing liver resection: A prospective cohort study. J Clin Anesth 2023; 87:111084. [PMID: 36905791 DOI: 10.1016/j.jclinane.2023.111084] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 02/15/2023] [Accepted: 02/18/2023] [Indexed: 03/13/2023]
Abstract
STUDY OBJECTIVE To determine the association between intraoperative renal tissue desaturation as measured using near-infrared spectroscopy and increased likelihood of developing postoperative acute kidney injury (AKI) in older patients undergoing hepatectomy. DESIGN A multicenter prospective cohort study. SETTING The study was conducted at two tertiary hospitals in China from September 2020 to October 2021. PATIENTS 157 older patients (≥ 60 years) undergoing open hepatectomy surgery. INTERVENTIONS AND MEASUREMENTS Renal tissue oxygen saturation was continuously monitored during operation using near-infrared spectroscopy. The exposure of interest was intraoperative renal desaturation, defined as at least 20% relative decline in renal tissue oxygen saturation from baseline. The primary outcome was postoperative AKI, defined using the Kidney Disease: Improving Global Outcomes criteria according to the serum creatinine criteria. MAIN RESULTS Renal desaturation occurred in 70 of 157 patients. Postoperative AKI was observed in 23% (16/70) and 8% (7/87) of patients with versus without renal desaturation. Patients with renal desaturation were at higher risk of AKI than patients without renal desaturation (adjusted odds ratio 3.41, 95% confidence interval: 1.12-10.36, p = 0.031). Predictive performance was 65.2% sensitivity and 33.6% specificity for hypotension alone, 69.6% sensitivity and 59.7% specificity for renal desaturation alone, and 95.7% sensitivity and 26.9% specificity for combined use of hypotension and renal desaturation. CONCLUSIONS Intraoperative renal desaturation occurred in >40% in our sample of older patients undergoing liver resection and was associated with increased risk of AKI. Intraoperative near-infrared spectroscopy monitoring enhances the detection of AKI.
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Affiliation(s)
- Yao Yu
- Department of Anesthesiology, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Haotian Wu
- Department of Anesthesiology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Chang Liu
- Department of Anesthesiology, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Changsheng Zhang
- Department of Anesthesiology, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yuxiang Song
- Department of Anesthesiology, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yulong Ma
- Department of Anesthesiology, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Hao Li
- Department of Anesthesiology, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Jingsheng Lou
- Department of Anesthesiology, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yanhong Liu
- Department of Anesthesiology, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Jiangbei Cao
- Department of Anesthesiology, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Huan Zhang
- Department of Anesthesiology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Zhipeng Xu
- Department of Anesthesiology, the Affiliated Hospital of Medical School, Ningbo University, Ningbo, China
| | - Roger G Evans
- Cardiovascular Disease Program, Biomedicine Discovery Institute and Department of Physiology, Monash University, Melbourne, Australia; Florey Institute of Neurosciences and Mental Health, University of Melbourne, Melbourne, Australia
| | - Chongyang Duan
- Department of Biostatistics, School of Public Health, Southern Medical University, Guangzhou, China.
| | - Weidong Mi
- Department of Anesthesiology, The First Medical Center of Chinese PLA General Hospital, Beijing, China.
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Oh C, Lee S, Song BS, Kwon S, Kim YH, Yoon SH, Shin YS, Ko Y, Lim C, Hong B. Comparative effects of desflurane and sevoflurane on intraoperative peripheral perfusion index: a retrospective, propensity score matched, cohort study. Sci Rep 2023; 13:2991. [PMID: 36878940 PMCID: PMC9988875 DOI: 10.1038/s41598-022-27253-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Accepted: 12/28/2022] [Indexed: 03/08/2023] Open
Abstract
Desflurane is known to have a larger vasodilatory effect than that of sevoflurane. However, its generalizability and effect size in actual clinical practice are yet to be proven. Patients aged ≥ 18 years who underwent noncardiac surgery under general anesthesia using inhalation anesthetics (desflurane or sevoflurane) were matched 1:1 by propensity score. The mean intraoperative perfusion index (PI) of each patient were compared between the two groups. Propensity score matching of 1680 patients in the study cohort identified 230 pairs of patients. PI was significantly higher in the desflurane group (median of paired difference, 0.45; 95% CI 0.16 to 0.74, p = 0.002). PI durations below 1.0 and 1.5 were significantly longer in the sevoflurane group. Mean arterial pressure (MAP) and durations of low MAP did not differ significantly between the two groups. Generalized linear mixed models revealed that the use of sevoflurane, mean MAP, mean heart rate, age, and duration of anesthesia had significant negative effects (lower PI), whereas mean age-adjusted minimum alveolar concentration of inhalation agent had a positive effect on PI (higher value). Intraoperative PI was significantly higher in patients administered desflurane than sevoflurane. However, the impact of the choice between desflurane and sevoflurane on intraoperative PI in this clinical setting was minimal.
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Affiliation(s)
- Chahyun Oh
- Department of Anesthesiology and Pain Medicine, Chungnam National University Hospital, 282 Munhwa-Ro, Jung-Gu, Daejeon, 35015, Korea
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Seounghun Lee
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chungnam National University, Daejeon, South Korea
- Department of Anesthesiology and Pain Medicine, Chungnam National University Sejong Hospital, Sejong, Republic of Korea
| | - Byong-Sop Song
- Core Laboratory of Translational Research, Biomedical Convergence Research Center, Chungnam National University Hospital, Daejeon, South Korea
| | - Sanghun Kwon
- Department of Anesthesiology and Pain Medicine, Chungnam National University Hospital, 282 Munhwa-Ro, Jung-Gu, Daejeon, 35015, Korea
| | - Yoon-Hee Kim
- Department of Anesthesiology and Pain Medicine, Chungnam National University Hospital, 282 Munhwa-Ro, Jung-Gu, Daejeon, 35015, Korea
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Seok-Hwa Yoon
- Department of Anesthesiology and Pain Medicine, Chungnam National University Hospital, 282 Munhwa-Ro, Jung-Gu, Daejeon, 35015, Korea
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Yong Sup Shin
- Department of Anesthesiology and Pain Medicine, Chungnam National University Hospital, 282 Munhwa-Ro, Jung-Gu, Daejeon, 35015, Korea
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Youngkwon Ko
- Department of Anesthesiology and Pain Medicine, Chungnam National University Hospital, 282 Munhwa-Ro, Jung-Gu, Daejeon, 35015, Korea
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Chaeseong Lim
- Department of Anesthesiology and Pain Medicine, Chungnam National University Hospital, 282 Munhwa-Ro, Jung-Gu, Daejeon, 35015, Korea.
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chungnam National University, Daejeon, South Korea.
| | - Boohwi Hong
- Department of Anesthesiology and Pain Medicine, Chungnam National University Hospital, 282 Munhwa-Ro, Jung-Gu, Daejeon, 35015, Korea.
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chungnam National University, Daejeon, South Korea.
- Big Data Center, Biomedical Research Institute, Chungnam National University Hospital, Daejeon, South Korea.
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Kouz K, Brockmann L, Timmermann LM, Bergholz A, Flick M, Maheshwari K, Sessler DI, Krause L, Saugel B. Endotypes of intraoperative hypotension during major abdominal surgery: a retrospective machine learning analysis of an observational cohort study. Br J Anaesth 2023; 130:253-261. [PMID: 36526483 DOI: 10.1016/j.bja.2022.07.056] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 07/27/2022] [Accepted: 07/30/2022] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Intraoperative hypotension is associated with myocardial injury, acute kidney injury, and death. In routine practice, specific causes of intraoperative hypotension are often unclear. A more detailed understanding of underlying haemodynamic alterations of intraoperative hypotension may identify specific treatments. We thus aimed to use machine learning - specifically, hierarchical clustering - to identify underlying haemodynamic alterations causing intraoperative hypotension in major abdominal surgery patients. Specifically, we tested the hypothesis that there are distinct endotypes of intraoperative hypotension, which may help refine therapeutic interventions. METHODS We conducted a secondary analysis of intraoperative haemodynamic measurements from a prospective observational study in 100 patients who had major abdominal surgery under general anaesthesia. We used stroke volume index, heart rate, cardiac index, systemic vascular resistance index, and pulse pressure variation measurements. Intraoperative hypotension was defined as any mean arterial pressure ≤65 mm Hg or a mean arterial pressure between 66 and 75 mm Hg requiring a norepinephrine infusion rate exceeding 0.1 μg kg-1 min-1. To identify endotypes of intraoperative hypotension, we used hierarchical clustering (Ward's method). RESULTS A total of 615 episodes of intraoperative hypotension occurred in 82 patients (46 [56%] female; median age: 64 [57, 73] yr) who had surgery of a median duration of 270 (195, 335) min. Hierarchical clustering revealed six distinct intraoperative hypotension endotypes. Based on their clinical characteristics, we labelled these endotypes as (1) myocardial depression, (2) bradycardia, (3) vasodilation with cardiac index increase, (4) vasodilation without cardiac index increase, (5) hypovolaemia, and (6) mixed type. CONCLUSION Hierarchical clustering identified six endotypes of intraoperative hypotension. If validated, considering these intraoperative hypotension endotypes may enable causal treatment of intraoperative hypotension.
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Affiliation(s)
- Karim Kouz
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Lennart Brockmann
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Lea Malin Timmermann
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Alina Bergholz
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Moritz Flick
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Kamal Maheshwari
- Department of Outcomes Research, Cleveland Clinic, Cleveland, OH, USA; Department of General Anesthesiology, Anesthesiology Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Daniel I Sessler
- Department of Outcomes Research, Cleveland Clinic, Cleveland, OH, USA
| | - Linda Krause
- Institute of Medical Biometry and Epidemiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Bernd Saugel
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Outcomes Research Consortium, Cleveland, OH, USA.
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Xu Y, Hong Y, Liu X, Zhou L, Jiang C. Anaesthetic considerations in Shrinking Man syndrome: two case reports. BMC Anesthesiol 2023; 23:20. [PMID: 36631742 PMCID: PMC9835252 DOI: 10.1186/s12871-023-01978-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 01/05/2023] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Shrinking Man syndrome (SMS) is a rare but often serious complication of dialysis-dependent end-stage renal disease, characterized by significant loss of height, bone pain, bone deformity, and skin itching. Patients with SMS always have abnormal facial changes and cardiovascular system damage (manifested by hypertension, hypotension, cardiovascular calcification, and valvular heart disease), which pose a great challenge to anaesthesiologists. The purpose of this report is to describe our anaesthetic experience regarding two patients with SMS combined with alterations of the airway and cardiovascular system. CASE PRESENTATION We describe two cases of SMS treated at West China Hospital, a tertiary care centre in Chengdu, China. All cases met the diagnostic criteria, which comprised 1) dialysis-dependent end-stage renal disease, 2) loss of height, and 3) bone pain and bone deformity. One patient had an anticipated difficult airway and moderate-to-severe mitral stenosis. The other patient presented with significant hypotension. Anaesthetic considerations included awake fibreoptic bronchoscopy-assisted tracheal intubation, real-time transoesophageal echocardiogram monitoring and individualized blood pressure management strategies. CONCLUSION This case series highlights the importance of adequate preoperative assessment and preparation, as well as individualized anaesthetic management, in patients with SMS.
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Affiliation(s)
- Yan Xu
- grid.412901.f0000 0004 1770 1022Department of Anesthesiology, West China Hospital, Sichuan University & The Research Units of West China (2018RU012), Chinese Academy of Medical Sciences, Chengdu, 610041 China
| | - Ying Hong
- grid.412901.f0000 0004 1770 1022Department of Anesthesiology, West China Hospital, Sichuan University & The Research Units of West China (2018RU012), Chinese Academy of Medical Sciences, Chengdu, 610041 China
| | - Xin Liu
- grid.412901.f0000 0004 1770 1022Department of Anesthesiology, West China Hospital, Sichuan University & The Research Units of West China (2018RU012), Chinese Academy of Medical Sciences, Chengdu, 610041 China
| | - Li Zhou
- grid.412901.f0000 0004 1770 1022Department of Anesthesiology, West China Hospital, Sichuan University & The Research Units of West China (2018RU012), Chinese Academy of Medical Sciences, Chengdu, 610041 China
| | - Chunling Jiang
- grid.412901.f0000 0004 1770 1022Department of Anesthesiology, West China Hospital, Sichuan University & The Research Units of West China (2018RU012), Chinese Academy of Medical Sciences, Chengdu, 610041 China ,grid.13291.380000 0001 0807 1581Department of Anesthesiology and Translational Neuroscience Center, West China Hospital, Sichuan University, 610041 Chengdu, China
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Xia J, Ran G, Chen K, Shen X. Factors Associated with Prolonged Extubation after Total Intravenous Anesthesia in Patients Undergoing Vestibular Schwannoma Resection. Otol Neurotol 2022; 43:e1164-e1167. [PMID: 36113455 DOI: 10.1097/mao.0000000000003688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
OBJECTIVE To identify factors associated with prolonged tracheal extubation after vestibular schwannoma resection in patients receiving propofol-remifentanil-based total intravenous anesthesia (TIVA). STUDY DESIGN Single-center retrospective study of vestibular schwannoma resection performed by a single neurosurgeon between July 2018 and September 2021. SETTING Tertiary academic medical center. PATIENTS Adults receiving TIVA for vestibular schwannoma resection, classified according to extubation time: non-prolonged extubation (<15 min) and prolonged extubation (≥15 min). MAIN OUTCOME MEASURES Time from end of surgery to extubation, demographic parameters, intraoperative variables, and familiarity between the anesthesia provider and the neurosurgeon were analyzed. Predictors for prolonged extubation were analyzed via multivariate analysis. The primary outcome was the incidence of prolonged extubation. The secondary outcome was factors associated with prolonged tracheal extubation. RESULTS A total of 234 cases were analyzed. The median (interquartile range) extubation time was 9.4 minutes (7.2, 12.2 min). Extubation was prolonged in 39 patients (16.7%). Factors predicting prolonged extubation were significant blood loss (odds ratio [OR], 12.8; 95% confidence interval [CI], 2.6-61.7; p = 0.002), intraoperative neuromuscular blocking drug infusion (OR, 6.6; 95% CI, 2.8-15.7; p < 0.001), and lack of familiarity between the anesthesia provider and neurosurgeon (OR, 4.4; 95% CI, 1.5-12.3; p = 0.005). CONCLUSION Significant blood loss, intraoperative neuromuscular blocking drug infusion, and lack of familiarity between anesthesia provider and neurosurgeon were associated with prolonged extubation following TIVA for vestibular schwannoma resection.
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Affiliation(s)
- Junming Xia
- Department of Anesthesiology, Eye & and ENT Hospital, Fudan University, Shanghai, China
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Intraoperative Hypotension and 30-D Mortality After Liver Transplantation. Transplant Direct 2022; 8:e1380. [PMID: 36204192 PMCID: PMC9529055 DOI: 10.1097/txd.0000000000001380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 07/31/2022] [Indexed: 12/02/2022] Open
Abstract
UNLABELLED Intraoperative hypotension (IOH) is common and associated with mortality in major surgery. Although patients undergoing liver transplantation (LT) have low baseline blood pressure, the relation between blood pressure and mortality in LT is not well studied. We aimed to determine mean arterial pressure (MAP) that was associated with 30-d mortality in LT. METHODS We performed a retrospective cohort study. The data included patient demographics, pertinent preoperative and intraoperative variables, and MAP using various metrics and thresholds. The endpoint was 30-d mortality after LT. RESULTS One thousand one hundred seventy-eight patients from 2013 to 2020 were included. A majority of patients were exposed to IOH and many for a long period. Eighty-nine patients (7.6%) died within 30 d after LT. The unadjusted analysis showed that predicted mortality was associated with MAP <45 to 60 mm Hg but not MAP <65 mm Hg. The association between MAP and mortality was further tested using adjustment and various duration cutoffs. After adjustment, the shortest durations for MAPs <45, 50, and 55 mm Hg associated with 30-d mortality were 6, 10, and 25 min (odds ratio, 1.911, 1.812, and 1.772; 95% confidence interval, 1.100-3.320, 1.039-3.158, and 1.008-3.114; P = 0.002, 0.036, and 0.047), respectively. Exposure to MAP <60 mm Hg up to 120 min was not associated with increased mortality. CONCLUSION In this large retrospective study, we found IOH was common during LT. Intraoperative MAP <55 mm Hg was associated with increased 30-d mortality after LT, and the duration associated with postoperative mortality was shorter with lower MAP than with higher MAP.
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Ackland GL, Abbott TEF. Hypotension as a marker or mediator of perioperative organ injury: a narrative review. Br J Anaesth 2022; 128:915-930. [PMID: 35151462 PMCID: PMC9204667 DOI: 10.1016/j.bja.2022.01.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 12/16/2021] [Accepted: 01/08/2022] [Indexed: 12/21/2022] Open
Abstract
Perioperative hypotension has been repeatedly associated with organ injury and worse outcome, yet many interventions to reduce morbidity by attempting to avoid or reverse hypotension have floundered. In part, this reflects uncertainty as to what threshold of hypotension is relevant in the perioperative setting. Shifting population-based definitions for hypertension, plus uncertainty regarding individualised norms before surgery, both present major challenges in constructing useful clinical guidelines that may help improve clinical outcomes. Aside from these major pragmatic challenges, a wealth of biological mechanisms that underpin the development of higher blood pressure, particularly with increasing age, suggest that hypotension (however defined) or lower blood pressure per se does not account solely for developing organ injury after major surgery. The mosaic theory of hypertension, first proposed more than 60 yr ago, incorporates multiple, complementary mechanistic pathways through which clinical (macrovascular) attempts to minimise perioperative organ injury may unintentionally subvert protective or adaptive pathways that are fundamental in shaping the integrative host response to injury and inflammation. Consideration of the mosaic framework is critical for a more complete understanding of the perioperative response to acute sterile and infectious inflammation. The largely arbitrary treatment of perioperative blood pressure remains rudimentary in the context of multiple complex adaptive hypertensive endotypes, defined by distinct functional or pathobiological mechanisms, including the regulation of reactive oxygen species, autonomic dysfunction, and inflammation. Developing coherent strategies for the management of perioperative hypotension requires smarter, mechanistically solid interventions delivered by RCTs where observer bias is minimised.
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Affiliation(s)
- Gareth L Ackland
- Translational Medicine and Therapeutics, William Harvey Research Institute, Queen Mary University of London, London, UK.
| | - Tom E F Abbott
- Translational Medicine and Therapeutics, William Harvey Research Institute, Queen Mary University of London, London, UK
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Li Y, Phan J, Mamoor A, Liu H. Hypotension prediction index together with cerebral oxygenation in guiding intraoperative hemodynamic management: a case report. J Biomed Res 2022; 36:63-67. [PMID: 35403612 PMCID: PMC8894284 DOI: 10.7555/jbr.36.20210164] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- Yun Li
- Department of Anesthesiology, the Second Hospital of Anhui Medical University, Hefei, Anhui 230601, China
- Department of Anesthesiology and Pain Medicine, University of California Davis Health, Sacramento, CA 95817, USA
| | - Janet Phan
- Department of Anesthesiology and Pain Medicine, University of California Davis Health, Sacramento, CA 95817, USA
| | - Azaam Mamoor
- California Northstate University College of Medicine, Sacramento, CA 95757, USA
| | - Hong Liu
- Department of Anesthesiology and Pain Medicine, University of California Davis Health, Sacramento, CA 95817, USA
- Hong Liu, Department of Anesthesiology and Pain Medicine, University of California Davis Health, 4150 V Street, Suite 1200, Sacramento, CA 95817, USA. Tel/Fax: +1-916-734-5031/+1-916-734-7980, E-mail:
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