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Zhu G, Wang X, Cao X, Yang C, Wang B, Ang Y, Duan M. The effect of different endotracheal tube cuff pressure monitoring systems on postoperative sore throat in patients undergoing tracheal intubation: a randomized clinical trial. BMC Anesthesiol 2024; 24:115. [PMID: 38528475 PMCID: PMC10962134 DOI: 10.1186/s12871-024-02499-5] [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: 08/01/2023] [Accepted: 03/15/2024] [Indexed: 03/27/2024] Open
Abstract
BACKGROUND Postoperative sore throat (POST) is an unpleasant outcome that can occur as a result of tracheal intubation in adults. Increased pressure from the endotracheal tube (ETT) cuff often leads to local mucosal injury, resulting in sore throat. The purpose of this study was to compare the effect of two different ETT cuff pressure monitoring systems vs. no cuff pressure monitoring on the incidence and severity of POST in adults. METHODS One hundred and fourteen ASA I-III patients of either gender, aged 18-65 years, and undergoing surgery requiring endotracheal intubation were included in this study. Patients were randomized into three groups: control (C), cuff pressure gauge (G), and automated cuff controller (A). The ETT cuff pressure was not monitored intraoperatively in group C but was monitored using a cuff pressure gauge and an automated cuff controller in groups G and A, respectively. Postoperatively, patients were assessed at 2, 24, and 48 h for the presence and severity of POST, hoarseness and cough. RESULTS One hundred and eleven patients completed the study. POST occurred in 40.5% of the patients in group G (n = 37) (p = 0.013) and 23.7% of the patients in group A (n = 38) (p < 0.001) within 48 h after surgery, compared to 69.4% in group C (n = 36). There were no significant differences in hoarseness, coughing, and dysphagia across the groups at any time. When comparing groups A and C, individuals in group A exhibited a lower occurrence of significant (grade ≥ 2) POST and hoarseness (10.5% vs. 41.7%, p = 0.002; 26.3% vs. 58.3%, p = 0.005). The incidence of significant cough and dysphagia did not differ substantially across the patient groups within 48 h after surgery. POST scores in group A at 2, 24 h postoperatively were both 0 (0-0), which was significantly lower than those in group C (1 (0-2) at 2 h, p < 0.001 ; 1 (0-1) at 24 h, p = 0.001). POST in group G at 2 h postoperatively was graded as 0 (0-1.5) which was milder than group C (P = 0.024). The severity of hoarseness in group A with scores of 0 (0-2) was superior to that in group C (2 (0-2), p = 0.006) at 2 h postoperatively. CONCLUSIONS In conclusion, the findings of this study indicated that the occurrence of POST can be reduced by using either the cuff pressure gauge approach or the automated cuff controller method. The automated cuff controller monitoring can potentially decrease the severity of POST and hoarseness. TRIAL REGISTRATION Chinese Clinical Trial Registry, identifier: ChiCTR2100054089, Date: 08/12/2021.
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Affiliation(s)
- Guangli Zhu
- College of Anesthesiology, Xuzhou Medical University, Xuzhou, Jiangsu, 221004, China
- Department of Anesthesiology, Affiliated Jinling Hospital, Medical School, Nanjing University, Nanjing, Jiangsu Province, 210002, China
- Department of Anesthesiology, Nanjing BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, 210019, China
| | - Xuan Wang
- Women's Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210004, China
| | - Xinyu Cao
- College of Anesthesiology, Xuzhou Medical University, Xuzhou, Jiangsu, 221004, China
- Department of Anesthesiology, Affiliated Jinling Hospital, Medical School, Nanjing University, Nanjing, Jiangsu Province, 210002, China
| | - Chongya Yang
- College of Anesthesiology, Xuzhou Medical University, Xuzhou, Jiangsu, 221004, China
- Department of Anesthesiology, Affiliated Jinling Hospital, Medical School, Nanjing University, Nanjing, Jiangsu Province, 210002, China
| | - Bin Wang
- Department of Anesthesiology, Jinling College affiliated to Nanjing Medical University, Nanjing, Jiangsu, 210002, China
| | - Yang Ang
- Department of Anesthesiology, Affiliated Jinling Hospital, Medical School, Nanjing University, Nanjing, Jiangsu Province, 210002, China
| | - Manlin Duan
- College of Anesthesiology, Xuzhou Medical University, Xuzhou, Jiangsu, 221004, China.
- Department of Anesthesiology, Affiliated Jinling Hospital, Medical School, Nanjing University, Nanjing, Jiangsu Province, 210002, China.
- Department of Anesthesiology, Nanjing BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, 210019, China.
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Effectiveness of Continuous Cuff Pressure Control in Preventing Ventilator-Associated Pneumonia: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Crit Care Med 2022; 50:1430-1439. [PMID: 35880890 DOI: 10.1097/ccm.0000000000005630] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
OBJECTIVES Microaspiration of subglottic secretions is the main pathogenic mechanism for ventilator-associated pneumonia (VAP). Adequate inflation of the endotracheal cuff is pivotal to providing an optimal seal of the extraluminal airway. However, cuff pressure substantially fluctuates due to patient or tube movements, which can induce microaspiration. Therefore, devices for continuous cuff pressure control (CCPC) have been developed in recent years. The purpose of this systematic review and meta-analysis is to assess the effectiveness of CCPC in VAP prevention. DATA SOURCES A systematic search of Embase, the Cochrane Central Register of Controlled Trials, and the International Clinical Trials Registry Platform was conducted up to February 2022. STUDY SELECTION Eligible studies were randomized controlled trials (RCTs) and quasi-RCTs comparing the impact of CCPC versus intermittent cuff pressure control on the occurrence of VAP. DATA EXTRACTION Random-effects meta-analysis was used to calculate odds ratio (OR) and 95% CI for VAP incidence between groups. Secondary outcome measures included mortality and duration of mechanical ventilation (MV) and ICU stay. The certainty of the evidence was assessed using the Grading of Recommendations Assessment, Development, and Evaluation approach. DATA SYNTHESIS Eleven RCTs with 2,092 adult intubated patients were included. The use of CCPC was associated with a reduced risk of VAP (OR, 0.51). Meta-analyses of secondary endpoints showed no significant difference in mortality but significant differences in durations of MV (mean difference, -1.07 d) and ICU stay (mean difference, -3.41 d) in favor of CCPC. However, the risk of both reporting and individual study bias was considered important. The main issues were the lack of blinding, potential commercial conflicts of interest of study authors and high heterogeneity due to methodological differences between studies, differences in devices used for CCPC and in applied baseline preventive measures. Certainty of the evidence was considered "very low." CONCLUSIONS The use of CCPC was associated with a reduction in VAP incidence; however, this was based on very low certainty of evidence due to concerns related to risk of bias and inconsistency.
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Dat VQ, Yen LM, Loan HT, Phu VD, Binh NT, Geskus RB, Trinh DHK, Mai NTH, Phu NH, Phu Huong Lan N, Thuy TP, Trung NV, Trung Cap N, Trinh DT, Hoa NT, Van NTT, Luan VTT, Nhu TTQ, Long HB, Ha NTT, Van NTT, Campbell J, Ahmadnia E, Kestelyn E, Wyncoll D, Thwaites GE, Van Hao N, Chien LT, Van Kinh N, Van Vinh Chau N, van Doorn HR, Thwaites CL, Nadjm B. Effectiveness of continuous endotracheal cuff pressure control for the prevention of ventilator associated respiratory infections: an open-label randomised, controlled trial. Clin Infect Dis 2021; 74:1795-1803. [PMID: 34420048 PMCID: PMC9155610 DOI: 10.1093/cid/ciab724] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Indexed: 12/30/2022] Open
Abstract
Background An endotracheal tube cuff pressure between 20 and 30 cmH2O is recommended to prevent ventilator-associated respiratory infection (VARI). We aimed to evaluate whether continuous cuff pressure control (CPC) was associated with reduced VARI incidence compared with intermittent CPC. Methods We conducted a multicenter open-label randomized controlled trial in intensive care unit (ICU) patients within 24 hours of intubation in Vietnam. Patients were randomly assigned 1:1 to receive either continuous CPC using an automated electronic device or intermittent CPC using a manually hand-held manometer. The primary endpoint was the occurrence of VARI, evaluated by an independent reviewer blinded to the CPC allocation. Results We randomized 600 patients; 597 received the intervention or control and were included in the intention to treat analysis. Compared with intermittent CPC, continuous CPC did not reduce the proportion of patients with at least one episode of VARI (74/296 [25%] vs 69/301 [23%]; odds ratio [OR] 1.13; 95% confidence interval [CI] .77–1.67]. There were no significant differences between continuous and intermittent CPC concerning the proportion of microbiologically confirmed VARI (OR 1.40; 95% CI .94–2.10), the proportion of intubated days without antimicrobials (relative proportion [RP] 0.99; 95% CI .87–1.12), rate of ICU discharge (cause-specific hazard ratio [HR] 0.95; 95% CI .78–1.16), cost of ICU stay (difference in transformed mean [DTM] 0.02; 95% CI −.05 to .08], cost of ICU antimicrobials (DTM 0.02; 95% CI −.25 to .28), cost of hospital stay (DTM 0.02; 95% CI −.04 to .08), and ICU mortality risk (OR 0.96; 95% CI .67–1.38). Conclusions Maintaining CPC through an automated electronic device did not reduce VARI incidence. Clinical Trial Registration NCT02966392.
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Affiliation(s)
- Vu Quoc Dat
- Oxford University Clinical Research Unit, Wellcome Trust Africa Asia Programme, Vietnam.,Department of Infectious Diseases, Hanoi Medical University, Ha Noi, Vietnam
| | - Lam Minh Yen
- Oxford University Clinical Research Unit, Wellcome Trust Africa Asia Programme, Vietnam
| | - Huynh Thi Loan
- Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Vu Dinh Phu
- National Hospital of Tropical Diseases, Hanoi, Vietnam
| | | | - Ronald B Geskus
- Oxford University Clinical Research Unit, Wellcome Trust Africa Asia Programme, Vietnam.,Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom
| | - Dong Huu Khanh Trinh
- Oxford University Clinical Research Unit, Wellcome Trust Africa Asia Programme, Vietnam
| | - Nguyen Thi Hoang Mai
- Oxford University Clinical Research Unit, Wellcome Trust Africa Asia Programme, Vietnam
| | | | | | | | - Nguyen Vu Trung
- National Hospital of Tropical Diseases, Hanoi, Vietnam.,Trung Vuong Hospital, Ho Chi Minh City, Vietnam
| | | | | | | | | | - Vy Thi Thu Luan
- Department of Microbiology, Hanoi Medical University, Ha Noi, Vietnam
| | | | - Hoang Bao Long
- Oxford University Clinical Research Unit, Wellcome Trust Africa Asia Programme, Vietnam
| | - Nguyen Thi Thanh Ha
- Oxford University Clinical Research Unit, Wellcome Trust Africa Asia Programme, Vietnam
| | - Ninh Thi Thanh Van
- Oxford University Clinical Research Unit, Wellcome Trust Africa Asia Programme, Vietnam
| | - James Campbell
- Oxford University Clinical Research Unit, Wellcome Trust Africa Asia Programme, Vietnam.,Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom
| | - Ehsan Ahmadnia
- Department of Adult Critical Care, Guy's and St Thomas' NHS Foundation Trust, St Thomas' Hospital, London, United Kingdom
| | - Evelyne Kestelyn
- Oxford University Clinical Research Unit, Wellcome Trust Africa Asia Programme, Vietnam.,Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom
| | - Duncan Wyncoll
- Department of Adult Critical Care, Guy's and St Thomas' NHS Foundation Trust, St Thomas' Hospital, London, United Kingdom
| | - Guy E Thwaites
- Oxford University Clinical Research Unit, Wellcome Trust Africa Asia Programme, Vietnam.,Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom
| | - Nguyen Van Hao
- Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Le Thanh Chien
- Department of Microbiology, Hanoi Medical University, Ha Noi, Vietnam
| | | | | | - H Rogier van Doorn
- Oxford University Clinical Research Unit, Wellcome Trust Africa Asia Programme, Vietnam.,Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom
| | - C Louise Thwaites
- Oxford University Clinical Research Unit, Wellcome Trust Africa Asia Programme, Vietnam.,Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom
| | - Behzad Nadjm
- Oxford University Clinical Research Unit, Wellcome Trust Africa Asia Programme, Vietnam.,Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom.,Medical Research Council The Gambia at The London School of Hygiene & Tropical Medicine, The Gambia
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Adachi K, Kameyama Y, Andoh K. Examination of the frequency of upward and downward fluctuations in the pressure obtained from the cuff pressure-time curve by continuous measurement of endotracheal tube cuff pressure during thyroid surgery: a case series. JA Clin Rep 2021; 7:63. [PMID: 34410516 PMCID: PMC8374418 DOI: 10.1186/s40981-021-00466-4] [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: 06/01/2021] [Revised: 08/02/2021] [Accepted: 08/02/2021] [Indexed: 11/24/2022] Open
Abstract
Background Few studies examined time-to-time changes of cuff pressure of an endotracheal tube during surgery. We retrospectively analyzed the changes of cuff pressure during thyroid surgery and examined its relationships with postoperative airway complications. Case presentation Cuff pressure was initially adjusted at 26 cmH2O and continuously measured in 61 patients. The cuff pressure-time curve dynamically fluctuated, and exceeded 30 cmH2O in all patients, whereas decreased to ≤ 20 cmH20 in 42 (69%) patients. Ratio of the period with such an increase and decrease of cuff pressure to the total duration of surgery were 40% (28–66%) and 9% (0–21%), respectively (median, interquartile range). No patients showed symptoms of airway stenosis requiring treatment except one who developed recurrent laryngeal nerve palsy. No patients had lower respiratory tract infection. Conclusions Cuff pressure dynamically fluctuated during thyroid surgery. Preventing an increase as well as decrease of cuff pressure is required.
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Affiliation(s)
- Koko Adachi
- Department of Anesthesiology, Sendai City Hospital, 1-1-1 Asutonagamachi, Taihaku-ku, Sendai, 982-8502, Japan.
| | - Yoshinobu Kameyama
- Department of Anesthesiology, Sendai City Hospital, 1-1-1 Asutonagamachi, Taihaku-ku, Sendai, 982-8502, Japan
| | - Kohkichi Andoh
- Department of Anesthesiology, Sendai City Hospital, 1-1-1 Asutonagamachi, Taihaku-ku, Sendai, 982-8502, Japan
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Sevdi MS, Demirgan S, Erkalp K, Akyol O, Ozcan FG, Guneyli HC, Tunali MC, Selcan A. Continuous Endotracheal Tube Cuff Pressure Control Decreases Incidence of Ventilator-Associated Pneumonia in Patients with Traumatic Brain Injury. J INVEST SURG 2021; 35:525-530. [PMID: 33583304 DOI: 10.1080/08941939.2021.1881190] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
BACKGROUND Ventilator-associated pneumonia (VAP) is a common cause of morbidity and mortality in intensive care unit (ICU), and among the several preventative strategies described to reduce the incidence of VAP, the most important is the endotracheal tube cuff (ETC) pressure. The present study was conducted on 60 patients who required mechanical ventilation (MV) in the ICU with traumatic brain injury (TBI). METHODS The patients were randomized into two groups of 30, in which ETC pressure was regulated using a smart cuff manager (SCM) (Group II), or manual measurement approach (MMA) (Group I). Demographic data, MV duration, length of ICU stay and mortality rates were recorded. The clinical pulmonary infection scores (CPISs), C-reactive protein (CRP) values, and the fraction of inspired oxygen (FiO2) and positive end-expiratory pressure (PEEP) values of the groups were compared at baseline, and at hours 48, 72 and 96. RESULTS In Group I, CPIS values significantly higher than Group II in 48th, 72nd and 96th hours (p < 0.05). In Group I, PEEP values and deep tracheal aspirate (DTA) culture growth rates significantly higher than Group II in 72nd and 96th hours (p < 0.05). CONCLUSION The continuous maintenance of ETC pressure using SCM reduced the incidence of VAP.
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Affiliation(s)
- Mehmet Salih Sevdi
- Department of Anesthesiology and Reanimation, Istanbul Bagcilar Training and Research Hospital, Istanbul, Turkey
| | - Serdar Demirgan
- Department of Anesthesiology and Reanimation, Istanbul Bagcilar Training and Research Hospital, Istanbul, Turkey
| | - Kerem Erkalp
- Department of Anesthesiology and Reanimation, Istanbul University-Cerrahpasa, Institute of Cardiology, Istanbul, Turkey
| | - Onat Akyol
- Department of Anesthesiology and Reanimation, Istanbul Bagcilar Training and Research Hospital, Istanbul, Turkey
| | - Funda Gumus Ozcan
- Department of Anesthesiology and Reanimation, Istanbul Basaksehir Cam and Sakura City Hospital, Istanbul, Turkey
| | - Hasan Cem Guneyli
- Department of Anesthesiology and Reanimation, Istanbul Bagcilar Training and Research Hospital, Istanbul, Turkey
| | - Mehmet Can Tunali
- Department of Anesthesiology and Reanimation, Istanbul Bagcilar Training and Research Hospital, Istanbul, Turkey
| | - Aysin Selcan
- Department of Anesthesiology and Reanimation, Istanbul Bagcilar Training and Research Hospital, Istanbul, Turkey
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Nazari R, Sharif Nia H, Hajihosseini F, Beheshti Z, Panjoo M, Rahmatpour P. Effect of Tracheal Suctioning on Cuff Pressure in Mechanically Ventilated Patients: a Quasi-Experimental Study. TANAFFOS 2021; 20:22-28. [PMID: 34394366 PMCID: PMC8355932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 09/05/2020] [Indexed: 11/04/2022]
Abstract
BACKGROUND Endotracheal tube cuff pressure must be kept in an optimal range, but it might change during some nursing procedures. If the cuff pressure gets outside the normal range, it can cause mucosal damage, insufficient ventilation, and microaspiration. This study aimed to determine the effect of endotracheal suctioning on cuff pressure in patients during mechanical ventilation. MATERIALS AND METHODS This is a quasi-experimental study utilizing repeated measures with a within-subject design. Using a simple convenience sampling method, 61 patients were studied during intubation on mechanical ventilation. Baseline cuff pressure was adjusted to 25 cm H 2 O. Then, at 15, 30, and 60 minutes' intervals, cuff pressures were measured once without suctioning and again after suctioning. RESULTS The results showed a significant change in the mean endotracheal tube cuff pressure during suctioning (p<0.001, d=7.47). During suctioning, cuff pressure exceeded the normal range in 64% of the patients. After suctioning, although endotracheal tube cuff pressure decreased in both conditions, it decreased more significantly (F (2.17, 260.55)=238.19, p<0.001, ν=0.665, d=1.37) in the suctioning condition. CONCLUSION The results suggest that endotracheal tube cuff pressure increases suddenly and briefly during suctioning, but within 60 minutes after suctioning, it becomes more reduced in suctioning conditions than without suctioning. Therefore, patients are at risk of mucosal damage and microaspiration after and during suctioning, respectively. It is suggested that nurses use continuous cuff pressure regulation methods to prevent potential risks.
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Affiliation(s)
- Roghieh Nazari
- Amol Faculty of Nursing and Midwifery, Mazandaran University of Medical Sciences, Sari, Iran
| | - Hamid Sharif Nia
- Amol Faculty of Nursing and Midwifery, Mazandaran University of Medical Sciences, Sari, Iran
| | - Fatemeh Hajihosseini
- Amol Faculty of Nursing and Midwifery, Mazandaran University of Medical Sciences, Sari, Iran,,Correspondence to: Hajihosseini F, Address: Amol Faculty of Nursing and Midwifery, Mazandaran University of Medical Sciences, Sari, Iran Email address:
| | - Zahra Beheshti
- Amol Faculty of Nursing and Midwifery, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mojgan Panjoo
- Student Research Committee, Mazandaran University of Medical Sciences, Sari, Iran
| | - Pardis Rahmatpour
- School of Nursing and Midwifery, Iran University of Medical Sciences, Tehran, Iran
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Measuring endotracheal tube intracuff pressure: no room for complacency. J Clin Monit Comput 2020; 35:3-10. [PMID: 32198671 PMCID: PMC7223496 DOI: 10.1007/s10877-020-00501-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Accepted: 03/16/2020] [Indexed: 12/19/2022]
Abstract
Tracheal intubation constitutes a routine part in the care of critically ill and anaesthetised patients. Prolonged use of endotracheal with inflated cuff is one of the major multifactorial causes of complications. Both under-inflation and over-inflation of cuff are associated with complications. Despite known problems, regular measurement of cuff pressure is not routine, and it is performed on an ad hoc basis.
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Gopalan PD. Goldilocks and endotracheal tube cuff pressure management: Not too high, not too low. Just right …. SOUTHERN AFRICAN JOURNAL OF CRITICAL CARE 2019; 35:10.7196/SAJCC.2019.v35i1.401. [PMID: 36959816 PMCID: PMC10029735 DOI: 10.7196/sajcc.2019.v35i1.401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Affiliation(s)
- P D Gopalan
- Discipline of Anaesthesiology and Critical Care, School of Clinical
Medicine, University of KwaZulu-Natal, Durban, South Africa
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Matsuba K, Tsujimoto T, Kawaguchi M, Inoue S. Cuff leakage caused by automatic cuff pressure monitor and water condensation in the inflation tube of Microcuff® endotracheal tube. Anaesth Intensive Care 2019; 47:300-301. [DOI: 10.1177/0310057x19841386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Kohei Matsuba
- Division of Intensive Care, Nara Medical University, Kashihara, Nara, Japan
| | - Takafumi Tsujimoto
- Division of Intensive Care, Nara Medical University, Kashihara, Nara, Japan
| | - Masahiko Kawaguchi
- Division of Intensive Care, Nara Medical University, Kashihara, Nara, Japan
| | - Satoki Inoue
- Division of Intensive Care, Nara Medical University, Kashihara, Nara, Japan
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