Free On-line Access

SPCI - Sociedade Portuguesa de Cuidados Intensivos

Revista Brasileira de Terapia Intensiva

AMIB - Associação de Medicina Intensiva Brasileira

OFFICIAL JOURNAL OF THE ASSOCIAÇÃO BRASILEIRA DE MEDICINA INTENSIVA AND THE SOCIEDADE PORTUGUESA DE CUIDADOS INTENSIVOS

ISSN: 0103-507X
Online ISSN: 1982-4335

Ícone Fechar

How to Cite


 

Bezzi MG, Brovia CC, Carballo JM, Elías MI, Moreno AB, Ruiz VR, et al. Impacto de la implementación de medidas de cuidados respiratorios y optimización de la ventilación mecánica en potenciales donantes de pulmón. Rev Bras Ter Intensiva. 2020;32(4):571-577

 

 

2020;32(4):571-577
ORIGINAL ARTICLE

10.5935/0103-507X.20200095

Impact of implementing a protocol of respiratory care measures and optimization of mechanical ventilation in potential lung donors

Impacto de la implementación de medidas de cuidados respiratorios y optimización de la ventilación mecánica en potenciales donantes de pulmón

Marco Guillermo Bezzi1,2, Carla Candela Brovia1,2, Juan Manuel Carballo1,2, Maia Inés Elías1,2, Agustina Belén Moreno1,2, Vanesa Romina Ruiz2,3, Fernanda Cordiviola2, David Barbieri2, Adriana Fariña2, Silvina Borello1,2

1 Hospital General de Agudos D. F. Santojanni - Buenos Aires, Argentina.
2 Instituto de Trasplante de la Ciudad de Buenos Aires - Buenos Aires, Argentina.
3 Sección de Rehabilitación y Cuidados Respiratorios del Paciente Crítico, Hospital Italiano de Buenos Aires - Buenos Aires, Argentina.

Conflicts of interest: None.

Responsible editor: Felipe Dal-Pizzol

Submitted on March 20, 2020
Accepted on May 25, 2020

Corresponding author: Marco Guillermo Bezzi, Hospital General de Agudos D. F. Santojanni Pilar 950 (C1408INH11) Buenos Aires, Argentina. E-mail: [email protected]

 

Abstract

OBJECTIVE: To describe the results from the implementation of a respiratory care and mechanical ventilation protocol on potential lung donors who met the conditions for procurement. The secondary objective is to compare the results with historical data.
METHODS: This was a retrospective, observational study. It included potential donors suitable for procurement of organs who had brain death and were hospitalized in critical care units of the Autonomous City of Buenos Aires from April 2017 to March 2018. Main variables: number of potential lung donors that reached the objective of procurement, rate of lungs procured, and rate of implanted lungs. Values of p < 0.05 were considered significant.
RESULTS: Thirty potential lung donors were included, and 23 (88.5%; 95%CI 69.8 - 97.6) met the oxygenation objective. Twenty potential lung donors donated organs, of whom eight donated lungs, with which four double lung transplants and eight single lung transplants were performed. Seven of 12 lungs were procured and implanted in the preprotocol period, while all 12 were under the protocol (p = 0.38). The implantation rate was 58.3% (7/12) in the historical control period and 100% (12/12) (p = 0.04) in the study period.

Keywords: Lung transplantation; Organ transplantation; Donor selection; Tissue and organ procurement; Respiration, artificial; Brain death.

 

INTRODUCTION

Organ procurement and maintenance are hospital care activities that take place in the time elapsed from the diagnosis of brain death (BD) to its confirmation and the ablation of the organs, and their purpose is to provide the organs in a condition that will meet the health demand of the patients waiting for a transplant to treat their terminal, acute, or chronic diseases.(1,2)

In the organ and tissue procurement for transplantation, the lung is one of the organs that suffers the greatest impact in the context of BD, and its low availability worldwide is a consequence of multiple factors, including the processes associated with BD, fluid administration, and injury induced by forced mechanical ventilation (MV).(2-4)

The deterioration of gas exchange, evidenced by a fall in the arterial oxygen partial pressure/fractional inspired oxygen (PaO2/FiO2) index is one of the main reasons to stop considering the lungs for donation.(5) In addition, the pulmonary lesions that occur in cases of BD due to traumatic mechanisms, the pulmonary lesions induced by MV, and the sensitivity of the lungs to infection (which is closely related to the time of invasive MV and the abolition of defense mechanisms) make the lung one of the first organs that is discarded in the procurement process.(2,6,7)

Although some studies suggest the application of a pulmonary protection strategy to improve the number and quality of the lungs procured, only one randomized clinical trial evaluated this strategy, and it was stopped prematurely.(8-10)

Current international guidelines for potential donors recommend a protective ventilatory strategy with low tidal volume (Vt). However, there is still no strong evidence on the best ventilatory strategy after BD, and our country has no standardized protocol to maintain optimal ventilation.(11-13)

The objective of the present study is to describe the results of the implementation of protocolized management of respiratory care and MV in potential lung donors (PLD) by calculating the rate of lungs that met the conditions for procurement and implantation. The secondary objective is to compare the results with historical data.

METHODS

A retrospective and observational study was carried out.

Consecutive PLD with BD who were suitable for organ procurement, were aged 18 to 65 years, were admitted to critical care units of institutions of the Ciudad Autónoma de Buenos Aires (CABA) between April 2017 and March 2018, were cared for by the Instituto de Trasplante de la Ciudad Autónoma de Buenos Aires, and met the criteria to be an ideal lung donor or had no more than one marginal lung donor criterion (Table 1) were included.(14,15) Those with chronic lung disease, alterations in X-ray lung fields, evidence of bronchoaspiration, or the presence of purulent secretions with confirmed infection were excluded. Potential lung donors in whom the final data could not be collected due to protocol suspension and/or cardiac arrest were eliminated. A group of PLD with BD treated in the same period during the previous year was used as a control group.

Table 1 - Acceptance criteria for lung donors
Variable Ideal donor Marginal donor
Age (years) < 55 55 - 65
PaO2/FiO2 (mmHg) (PEEP 5cmH2O y FiO2 1) > 300 250 - 300
Time of mechanical ventilation (hours) < 72 > 72
Smoking (packages/year) < 20 > 20

PaO2/FiO2 - ratio between arterial oxygen partial pressure and fractional inspired oxygen; PEEP - positive end-expiratory pressure.

Table 1 - Acceptance criteria for lung donors

The main variables were:

    - Rate of PLD that reach the procurement objective: expressed as the number of PLD with PaO2/FiO2 greater than 300mmHg at the end of the protocol, divided by the total number of PLD included.

    - Procured lung rate: expressed as the number of procured lungs, either unilateral lung, bilateral lungs, or cardiopulmonary block, divided by the total number of donor organs.

    - Rate of implanted lungs: expressed as the number of implanted lungs, either unilateral lung, bilateral lungs, or cardiopulmonary block, divided by the total number of lungs procured.

Secondary variables were: demographic characteristics of the PLD; ventilatory and gasometric parameters; duration time elapsed since the BD to organ ablation.

A protocol of MV and respiratory care measures was implemented in the PLDs to maintain adequate gas exchange, avoid MV-induced lung injury, and optimize the state of the organ to be procured. The schedule chosen to apply the ventilatory support was the volume-controlled continuous mandatory ventilation (VC-CMV) mode, with an initial Vt of 8mL/kg depending on the predicted body weight of each patient [(height in cm-152.4) × 0.91 + 45.5 in women or 50 in men]. The Vt was reduced to 5mL/kg during maintenance in the presence of plateau pressure ≥ 30cmH2O or insufflation pressure (driving pressure) ≥ 14cmH2O (Table 2).(6,9,11,12,16) The initial positive end-expiratory pressure (PEEP) value was 5cmH2O and was modified according to the variations in FiO2 and the oxygenation objectives (PaO2 > 90mmHg or SpO2 > 95%) according to the table of the Acute Respiratory Distress Syndrome Network.(17) When necessary and not routinely, aspiration of oropharyngeal and tracheobronchial secretions was performed. The criteria were as follows: sawtooth pattern in the flow-time curve of the ventilator monitor, auscultation of thick rales, increase in peak pressure, deterioration of oxygen saturation, visible airway secretions, and/or the need to obtain a sputum sample to rule out or identify pneumonia or other lung infections. A closed aspiration system was used.(18,19) The usual measures of respiratory physiotherapy were adopted to avoid atelectasis, such as postural drainage with lateral decubitus. Airway humidification was performed with a heat and moisture exchanger. In the presence of hypothermia, active humidification was used. The apnea test was performed through a T-piece with a 10cmH2O PEEP valve and O2 flow of 10 - 12L/minute to minimize alveolar closure or collapse and thereby increase end-expiratory lung volume (Figure 1).(6,20)

Table 2 - Protocol for mechanical ventilation and respiratory care
Mechanical ventilation Respiratory care
Mode: VC-CMV Apnea test: CPAP 10cmH2O, flow
O2 10 - 12 L/minute
Vt: 6 to 8 (mL/kg of predicted body weight)
RR: with PaCO2 target 35 - 45mmHg
PEEP: > 5cmH2O
Bronchial hygiene therapy:  CSS,
positioning, insufflation, increased
expiratory flow
FiO2: according to PEEP/FiO2 table
Ti: 0.8 - 1.2 seconds
Humidification of airway: heat and
moisture exchanger
I:E: > 1:2
Trigger: in order to avoid self-triggering
Driving pressure: 7 - 14cmH2O
Prevention of respiratory infections:
elevated headrest > 30°,
endotracheal balloon pressure >
25cmH2O, oropharyngeal aspiration
Recruitment maneuver: when
disconnections or drop in oxygenation
Avoid disconnections of the circuit

VC-CMV - volume-controlled continuous mandatory ventilation; CPAP - continuous positive airway pressure; Vt - tidal volume; RR: respiratory rate; PEEP - positive pressure at the end of expiration; CSS - Closed suction system ; FiO2 - fractional inspired oxygen; Ti - inspiratory time; I:E - inspiration and expiration ratio.

Table 2 - Protocol for mechanical ventilation and respiratory care

Figure 1 - T piece with continuous positive airway pressure valve.

When faced with any eventual disconnection of the ventilatory support and with an oxygenation drop, a recruitment maneuver was applied if the patient had hemodynamic stability and no pneumothorax. The maneuver was interrupted in the presence of SpO2 < 88%, heart rate > 140 beats per minute (bpm) or < 40bpm, mean blood pressure < 60mmHg or a decrease greater than 20mmHg from the baseline value, and/or cardiac arrhythmia.(21) Subsequently, ventilation continued according to the proposed protocol.

The present study was approved by the local institutional Ethics Committee (Approval No. 858, Research Ethics Committee Hospital Santojanni) and respected the considerations on the care of participants in clinical research expressed in the Declaration of Helsinki and the Guide for Research in Human Health (resolution 1480/11) of the Ministry of Health of the República Argentina. The study did not present any type of risk. All study data were treated with maximum confidentiality, anonymously, with access restricted to personnel authorized for the purposes of the study by the evaluating ethics committee in accordance with current legal regulations (National Law on Protection of Personal Data 25.326/00 (Law of Habeas data) and Law 26. 529/09).

Statistical analysis

Continuous variables that assumed a normal distribution are reported as the mean and standard deviation (SD). Otherwise, the median and interquartile range (IQR) were used. The categorical variables are reported as presentation number and percentage, with their respective confidence intervals. To determine the distribution of the sample, the Shapiro-Wilk test was run. For comparisons between numerical variables, the t-test was run for paired samples, and otherwise the Wilcoxon test was used. For the comparison of rates between the period before implementation or control (April 2016 - March 2017) and during the implementation of the protocol (April 2017 - March 2018), the chi-squared test or Fisher's exact test was used, as appropriate. Values of p < 0.05 were considered significant. For the analysis, IBM Statistical Package for Social Science (SPSS) version 24.0 for Macintosh OS was used.

RESULTS

In the study period, from April 1, 2017 to March 31, 2018, 30 lung procurement procedures were carried out. The clinical and demographic characteristics of the PLDs are shown in table 3.

Table 3 - Demographic and clinical characteristics of potential donors
Potential donors  
Sex female 13 (43.3)
Mean age (years) 36.3 ± 11.5
Establishment  
    Private clinic 20 (66.7)
    Public hospital 7 (23.3)
    Security forces hospital 3 (10)
Diagnosis  
    Hemorrhagic stroke 16 (53.4)
    Ischemic stroke 3 (10)
    Severe TBI 4 (13.3)
    FAI skull 4 (13.3)
    Other 3 (10)
Days of MV at admission 1 [1 - 3]

TBI - traumatic brain injury; FAI - firearm injury; MV - mechanical ventilation. Results expressed as n (%), mean ± standard deviation or median [interquartile range].

Table 3 - Demographic and clinical characteristics of potential donors

In the main analysis, all 30 PLDs were included, four of whom were eliminated (in three, the data were lost, and one suffered cardiac arrest caused by refractory shock). The most frequent diagnosis of PLDs was hemorrhagic stroke. The median number of days of MV before the BD diagnosis was 1 day (IQR: 1 - 3). Sixty-six percent of the procedures were carried out in private clinics. Recruitment maneuvers (RM) were performed in 24 of the 30 PLD (80%) and had to be suspended five times due to hemodynamic instability. The median time elapsed from the diagnosis of BD to organ ablation was 12.5 hours (IQR: 6.9 - 16.6). Of the 26 PLD analyzed, 23 (88.5%) met the proposed oxygenation target, a PaO2/FiO2 greater than 300 at the end of the maintenance period (Figure 2).

Figure 2 - Flow chart. PaO2/FiO2 - ratio between arterial oxygen partial pressure and fractional inspired oxygen; 95%CI - 95% confidence interval.

In the analysis of the variables of ventilatory monitoring at the beginning of the protocol and at the end of the protocol (Table 4), no changes were observed in respiratory mechanics, ventilatory parameters, or blood gas analysis during the course of maintenance.

Table 4 - Ventilatory parameters, respiratory mechanics, and blood gas analysis at the beginning and end of the protocol
Variable Beginning Final p value
Vt (mL/kg) 7.8 [6 - 8] 7.4 0.65
Driving pressure (cmH2O) 8 [7.1 - 10.2] 9.5 [7.1 - 10.7] 0.1
Median plateau pressure (cmH2O) 15 [13 - 16.5] 15 [13 - 17] 0.25
PEEP (cmH2O) 6 (5 - 8) 6.83 (6.5 - 9) 0.62
Mean static compliance (cmH2O) 55 ± 13 53.5 ± 13.7 0.44
PaO2/FiO2 401 ± 98 397 ± 91 0.89

Vt - tidal volume; PEEP - positive end expiratory pressure; PaO2/FiO2 - relationship between arterial oxygen partial pressure and fractional inspired oxygen. Results expressed as median [interquartile range]; mean ± standard deviation.

Table 4 - Ventilatory parameters, respiratory mechanics, and blood gas analysis at the beginning and end of the protocol

In ten PLD, the protocol was suspended. Of the 20 PLD treated, all donated organs, and 26.7% donated lungs, with which 12 patients were transplanted. In 12 PLD, lungs were not procured for various reasons, despite meeting the oxygenation criterion (Figure 3).

Figure 3 - Description of the procedures. 95%CI - 95% confidence interval.

The procured and implanted lungs were compared to those from a historical control, the same period of the previous year (from April 1, 2016 to March 31, 2017). The rate of procured lungs in relation to total procured organs was similar in both periods, 12/220 (5.4%) in the control versus 12/229 (5.2%) in the study period (p = 0.91). The number of lungs procured and implanted in the control period was seven, while in the study period it was 12 (p = 0.38). The proportion of implanted lungs was 58.3% (95%CI 27.7 - 84.8%) in the historical control, while during the protocol it was 100% (95%CI 73.5 - 100%), with a p = 0.04 (Table 5).

Table 5 - Lungs procured and implanted before and after implementation of the protocol
Variable 2016 - 2017 2017 - 2018 p
value
n = 229 n = 220
Lungs procured and implanted 7 12 0.38
Proportion of implanted lungs 7/12 (58.3) 12/12 (100) 0.04

Results expressed as n or n (%).

Source: Central de Reportes y Estadísticas del Sistema Nacional de Información de Procuración y Trasplante de la República Argentina (Cresi-SINTRA). Reporte nacional de procuración y trasplante, período 2016-2017 y 2017-2018.

Table 5 - Lungs procured and implanted before and after implementation of the protocol

DISCUSSION

The main finding of this study is that almost all of the PLDs after the implementation of the proposed protocol managed to reach the oxygenation objective at the end of the maintenance period. Although no significant difference was observed in the rate of procured lungs, all of these were implanted in the study period, compared to just over half in the historical control, indicating a significant impact in terms of avoiding the loss of procured lungs.

By applying a multimodal protocol, other authors have increased both the lungs eligible for donation (by oxygenation criteria) and their procurement rate.(8,9,22,23) Even other authors used RM as an isolated strategy to improve gas exchange and the compliance of the respiratory system and counteract the effects of alveolar derecruitment that can occur after the apnea test because of the disconnection of the respirator or the fall of oxygenation.(24-27) According to Miñambres et al.,(8) RMs should be performed not only for lung deterioration but also routinely as a preventive strategy.(8,9) Although RM are incorporated into numerous protocols, there is no strong evidence of their benefit, and there is still no consensus on what type of maneuver to perform. In our study, RM were considered to have rescued a drop in oxygenation or disconnection and were used in 24 PLD. However, they had to be interrupted five times due to hemodynamic deterioration during their application.

Oxygenation is one of the most influential variables in the acceptability of a lung for procurement. A PaO2/FiO2 ratio greater than 300mmHg is a criterion for donation, but in the study by Angel et al., a PaO2/FiO2 greater than 400mmHg was a decisive factor for organ acceptance.(22) According to a report in Argentina, in the period 2009 - 2013, the average PaO2/FiO2 ratio of donors was 430mmHg.(15) In the present study, the median PaO2/FiO2 at the end of the protocol was close to 400mmHg. However, the mean PaO2/FiO2 of the effective lung donors was 450mmHg, although the proposed oxygenation target was lower. These findings reflect that transplant teams prefer oxygenation levels close to 500mmHg. Therefore, the protocol should not only increase the oxygenation value but also maintain it during the procurement period to increase the organs eligible for transplantation.

The study has some limitations. First, due to its design, it does not demonstrate the superiority of the protocol applied over another strategy. Second, although marginal inclusion criteria were incorporated, the number of procedures during the year was small, similar to the previous year, which was used as a reference. Third, the decision to use the organs procured includes multiple circumstances related to the lungs, logistics, the recipient, and the preferences of the transplant team. Finally, the rate of implanted lungs was compared against a historical control, and we must note that some organizational and logistical circumstances may have changed between the periods studied. However, a similar length of time was considered-a whole year-to minimize any such effects.

On the other hand, our study has several strengths. We report the first such protocol based on evidence from international clinical practice carried out at the local level. We implemented a protective ventilation strategy (Vt 6 - 8mL/kg of predicted weight) due to its demonstrated efficacy in promoting the availability and eligibility of organs in potential donors and its clinical benefits in patients without pulmonary pathology. In addition, we monitored driving pressure (avoiding exceeding 14cmH2O) and plateau pressure (avoiding exceeding 30cmH2O) to adjust the Vt individually to optimize lung protection.(6,9,12,16) Likewise, we highlight that during the time elapsed in each procedure, oxygenation levels stayed at acceptable values, demonstrating that the implementation of a respiratory care protocol could be beneficial for the maintenance of the lungs procured. Lastly, a consensus was reached among a multidisciplinary team composed of nurses, doctors specializing in organ and tissue procurement, thoracic surgeons, doctors specializing in intensive care, and respiratory kinesiologists, who all worked according to the nature of the patients waiting on the transplant list.

CONCLUSION

The implementation of a protocol of respiratory care and mechanical ventilation in potential lung donors allowed almost all of the patients treated in the study period to reach the proposed oxygenation target at the time of ablation. In addition, all the lungs procured were implanted, a significant improvement over the previous period.

BIBLIOGRAFÍA

Argentina. Ministerio de Salud. Secretaría de Políticas, Regulación e Institutos. Instituto Nacional Central Único Coordinador de Ablación e Implante (INCUCAI). Resolución 275/2010. Protocolo Nacional para Certificar el Diagnóstico de Muerte Bajo Criterios Neurológicos. Buenos Aires, Argentina: Instituto Nacional Central Único Coordinador de Ablación e Implante; 2010. [cited 2020 Jan 8]. Available from: https://www.incucai.gov.ar/files/docs-incucai/Materiales/profesionales/05-manual_diagnostico_muerte.pdf
Argentina. Ministerio de Salud. Secretaría de Políticas, Regulación e Institutos. Instituto Nacional Central Único Coordinador de Ablación e Implante (INCUCAI). Sociedad Argentina de Terapia Intensiva. Sociedad Argentina de Trasplante. Asociación Argentina de Procuración de Órganos y Tejidos para Trasplante. Procurar para curar. Manual de Tratamiento del Donante a Corazón Batiente. Buenos Aires, Argentina: Instituto Nacional Central Único Coordinador de Ablación e Implante; sd. [cited 2020 Jan 8]. Available from: https://www.incucai.gov.ar/files/docs-incucai/Materiales/profesionales/06-manual_procurar_para_curar.pdf
Mascia L, Mastromauro I, Viberti S, Vincenzi M, Zanello M. Management to optimize organ procurement in brain dead donors. Minerva Anestesiol. 2009;75(3):125-33.
Lerman D, Chiapero G. Ventilación Mecánica en el Potencial Donante. En: Sociedad Argentina de Terapia Intensiva (SATI). Ventilación Mecánica. Libro del Comité de Neumonología Crítica de la SATI. 3a. ed. Buenos Aires, Argentina: Editorial Panamericana; 2017. p. 301-10.
Mascia L, Bosma K, Pasero D, Galli T, Cortese G, Donadio P, et al. Ventilatory and hemodynamic management of potential organ donors: an observational survey. Crit Care Med. 2006;34(2):321-7; quiz 328. Link DOI
Del Río F, Escudero D, La Calle B, Gordo Vidal F, Valentín Paredes M, Ramón Núnez J. Evaluación y mantenimiento del donante pulmonar. Med Intensiva. 2009;33(1):40-9. Link DOI
Recomendación rec-rcidt-2009 (12) sobre mantenimiento del donante multiorgânico. Newsletter RCIDT 2009. May 7, 2009. 29p. [cited 2020 Oct 29]. Available from: https://issuu.com/o-n-t/docs/newsletterrcidt2009/23
Miñambres E, Coll E, Duerto J, Suberviola B, Mons R, Cifrian JM, et al. Effect of an intensive lung donor-management protocol on lung transplantation outcomes. J Heart Lung Transplant. 2014;33(2):178-84. Link DOI
Mascia L, Pasero D, Slutsky AS, Arguis MJ, Berardino M, Grasso S, et al. Effect of a lung protective strategy for organ donors on eligibility and availability of lungs for transplantation: a randomized controlled trial. JAMA. 2010;304(23):2620-7. Link DOI
Kutsogiannis DJ, Pagliarello G, Doig C, Ross H, Shemie SD. Medical management to optimize donor organ potential: review of the literature. Can J Anaesth. 2006;53(8):820-30. Link DOI
Ruiz VR, Da Lozzo AG, Midley AD. Optimización del soporte ventilatorio del donante pulmonar. Revisión bibliográfica. Rev Am Med Respir. 2017;17(2):174-9.
Bansal R, Esan A, Hess D, Angel LF, Levine SM, George T, et al. Mechanical ventilatory support in potential lung donor patients. Chest. 2014;146(1):220-7. Link DOI
Klesney-Tait JA, Eberlein M. Lung protective ventilation in donors: an ounce of prevention. Chest. 2014;146(1):4-6. Link DOI
Argentina. Ministerio de Salud. Instituto Nacional Central Único Coordinador de Ablación e Implante (INCUCAI). Comisión de Selección y Mantenimiento del Donante de Órganos. Buenos Aires, Argentina: Instituto Nacional Central Único Coordinador de Ablación e Implante; 2005. [cited 2020 Jan 8]. Available from: https://www.incucai.gov.ar/files/docs-incucai/Prof-pasos-operativos/manual_mantenimiento_incucai_15_05_06.pdf
Da Lozzo A, Nicolás M, Dietrich A, Wainstein E, Svelitiza G, Beveraggi E, et al. Donante pulmonar con criterio expandido. Rev Arg Trasplant. 2015;7:64-73.
Bugedo G, Bravo S, Romero C, Castro R. Manejo del potencial donante cadáver. Rev Med Chile. 2014;142(12):1584-93. Link DOI
Acute Respiratory Distress Syndrome Network, Brower RG, Matthay MA, Morris A, Schoenfeld D, Thompson BT, Wheeler A. Ventilation with lower tidal volumes as compared with traditional tidal volumes for acute lung injury and the acute respiratory distress syndrome. N Engl J Med. 2000;342(18):1301-8. Link DOI
Branson RD. Secretion management in the mechanically ventilated patient. Respir Care. 2007;52(10):1328-42; discussion 1342-7.
American Association for Respiratory Care. AARC Clinical Practice Guidelines. Endotracheal suctioning of mechanically ventilated patients with artificial airways 2010. Respir Care. 2010;55(6):758-64.
Lévesque S, Lessard MR, Nicole PC, Langevin S, LeBlanc F, Lauzier F, et al. Efficacy of a T-piece system and a continuous positive airway pressure system for apnea testing in the diagnosis of brain death. Crit Care Med. 2006;34(8):2213-6. Link DOI
Kacmarek RM, Villar J. Lung recruitment maneuvers during acute respiratory distress syndrome: is it useful? Minerva Anestesiol. 2011;77(1):85-9.
Angel LF, Levine DJ, Restrepo MI, Johnson S, Sako E, Carpenter A, et al. Impact of a lung transplantation donor-management protocol on lung donation and recipient outcomes. Am J Respir Crit Care Med. 2006;174(6):710-6. Link DOI
Kirschbaum CE, Hudson S. Increasing organ yield through a lung management protocol. Prog Transplant. 2010;20(1):28-32. Link DOI
Noiseux N, Nguyen BK, Marsolais P, Dupont J, Simard L, Houde I, et al. Pulmonary recruitment protocol for organ donors: a new strategy to improve the rate of lung utilization. Transplant Proc. 2009;41(8):3284-9. Link DOI
Paries M, Boccheciampe N, Raux M, Riou B, Langeron O, Nicolas-Robin A. Benefit of a single recruitment maneuver after an apnea test for the diagnosis of brain death. Crit Care. 2012;16(4):R116. Link DOI
Philpot SJ, Pilcher DV, Graham SM, Snell GI. Lung recruitment manoeuvres should be considered when assessing suitability for lung donation. Crit Care Resusc. 2012;14(3):244-5.
Parto S, Shafaghi S, Khoddami-Vishteh HR, Makki SM, Abbasidezfuli A, Daneshvar A, et al. Efficacy of recruitment maneuver for improving the brain dead marginal lungs to ideal. Transplant Proc. 2013;45(10):3531-3. Link DOI

Submission On-line

Indexed in

Scopus

SciELO

LILACS

Associação de Medicina Intensiva Brasileira - AMIB

Rua Arminda nº 93 - 7º andar - Vila Olímpia - São Paulo, SP, Brasil - Tel./Fax: (55 11) 5089-2642 | e-mail: [email protected]

Cookie Policy

GN1 - Systems and Publications