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1.
Crit Care ; 28(1): 199, 2024 06 14.
Artigo em Inglês | MEDLINE | ID: mdl-38877571

RESUMO

Haemoglobin (Hb) thresholds and red blood cells (RBC) transfusion strategies in traumatic brain injury (TBI) are controversial. Our objective was to assess the association of Hb values with long-term outcomes in critically ill TBI patients. We conducted a secondary analysis of CENTER-TBI, a large multicentre, prospective, observational study of European TBI patients. All patients admitted to the Intensive Care Unit (ICU) with available haemoglobin data on admission and during the first week were included. During the first seven days, daily lowest haemoglobin values were considered either a continous variable or categorised as < 7.5 g/dL, between 7.5-9.5 and > 9.5 g/dL. Anaemia was defined as haemoglobin value < 9.5 g/dL. Transfusion practices were described as "restrictive" or "liberal" based on haemoglobin values before transfusion (e.g. < 7.5 g/dL or 7.5-9.5 g/dL). Our primary outcome was the Glasgow outcome scale extended (GOSE) at six months, defined as being unfavourable when < 5. Of 1590 included, 1231 had haemoglobin values available on admission. A mean Injury Severity Score (ISS) of 33 (SD 16), isolated TBI in 502 (40.7%) and a mean Hb value at ICU admission of 12.6 (SD 2.2) g/dL was observed. 121 (9.8%) patients had Hb < 9.5 g/dL, of whom 15 (1.2%) had Hb < 7.5 g/dL. 292 (18.4%) received at least one RBC transfusion with a median haemoglobin value before transfusion of 8.4 (IQR 7.7-8.5) g/dL. Considerable heterogeneity regarding threshold transfusion was observed among centres. In the multivariable logistic regression analysis, the increase of haemoglobin value was independently associated with the decrease in the occurrence of unfavourable neurological outcomes (OR 0.78; 95% CI 0.70-0.87). Congruous results were observed in patients with the lowest haemoglobin values within the first 7 days < 7.5 g/dL (OR 2.09; 95% CI 1.15-3.81) and those between 7.5 and 9.5 g/dL (OR 1.61; 95% CI 1.07-2.42) compared to haemoglobin values > 9.5 g/dL. Results were consistent when considering mortality at 6 months as an outcome. The increase of hemoglobin value was associated with the decrease of mortality (OR 0.88; 95% CI 0.76-1.00); haemoglobin values less than 7.5 g/dL was associated with an increase of mortality (OR 3.21; 95% CI 1.59-6.49). Anaemia was independently associated with long-term unfavourable neurological outcomes and mortality in critically ill TBI patients.Trial registration: CENTER-TBI is registered at ClinicalTrials.gov, NCT02210221, last update 2022-11-07.


Assuntos
Transfusão de Sangue , Lesões Encefálicas Traumáticas , Estado Terminal , Hemoglobinas , Unidades de Terapia Intensiva , Humanos , Lesões Encefálicas Traumáticas/terapia , Lesões Encefálicas Traumáticas/sangue , Lesões Encefálicas Traumáticas/mortalidade , Lesões Encefálicas Traumáticas/complicações , Masculino , Feminino , Pessoa de Meia-Idade , Hemoglobinas/análise , Estudos Prospectivos , Estado Terminal/terapia , Adulto , Unidades de Terapia Intensiva/organização & administração , Unidades de Terapia Intensiva/estatística & dados numéricos , Transfusão de Sangue/métodos , Transfusão de Sangue/estatística & dados numéricos , Idoso , Anemia/terapia , Anemia/sangue , Resultado do Tratamento , Escala de Resultado de Glasgow , Transfusão de Eritrócitos/métodos , Transfusão de Eritrócitos/estatística & dados numéricos
2.
Neurocrit Care ; 40(2): 477-485, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37378852

RESUMO

Traumatic brain injury (TBI) is a significant public health issue because of its increasing incidence and the substantial short-term and long-term burden it imposes. This burden includes high mortality rates, morbidity, and a significant impact on productivity and quality of life for survivors. During the management of TBI, extracranial complications commonly arise during the patient's stay in the intensive care unit. These complications can have an impact on both mortality and the neurological outcome of patients with TBI. Among these extracranial complications, cardiac injury is a relatively frequent occurrence, affecting approximately 25-35% of patients with TBI. The pathophysiology underlying cardiac injury in TBI involves the intricate interplay between the brain and the heart. Acute brain injury triggers a systemic inflammatory response and a surge of catecholamines, leading to the release of neurotransmitters and cytokines. These substances have detrimental effects on the brain and peripheral organs, creating a vicious cycle that exacerbates brain damage and cellular dysfunction. The most common manifestation of cardiac injury in TBI is corrected QT (QTc) prolongation and supraventricular arrhythmias, with a prevalence up to 5 to 10 times higher than in the general adult population. Other forms of cardiac injury, such as regional wall motion alteration, troponin elevation, myocardial stunning, or Takotsubo cardiomyopathy, have also been described. In this context, the use of ß-blockers has shown potential benefits by intervening in this maladaptive process. ß-blockers can limit the pathological effects on cardiac rhythm, blood circulation, and cerebral metabolism. They may also mitigate metabolic acidosis and potentially contribute to improved cerebral perfusion. However, further clinical studies are needed to elucidate the role of new therapeutic strategies in limiting cardiac dysfunction in patients with severe TBI.


Assuntos
Lesões Encefálicas Traumáticas , Lesões Encefálicas , Adulto , Humanos , Qualidade de Vida , Lesões Encefálicas Traumáticas/complicações , Lesões Encefálicas Traumáticas/terapia , Lesões Encefálicas/complicações , Lesões Encefálicas/terapia , Encéfalo , Coração
3.
Neurocrit Care ; 40(1): 349-363, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37081276

RESUMO

BACKGROUND: Cardiac arrest (CA) is a sudden event that is often characterized by hypoxic-ischemic brain injury (HIBI), leading to significant mortality and long-term disability. Brain tissue oxygenation (PbtO2) is an invasive tool for monitoring brain oxygen tension, but it is not routinely used in patients with CA because of the invasiveness and the absence of high-quality data on its effect on outcome. We conducted a systematic review of experimental and clinical evidence to understand the role of PbtO2 in monitoring brain oxygenation in HIBI after CA and the effect of targeted PbtO2 therapy on outcomes. METHODS: The search was conducted using four search engines (PubMed, Scopus, Embase, and Cochrane), using the Boolean operator to combine mesh terms such as PbtO2, CA, and HIBI. RESULTS: Among 1,077 records, 22 studies were included (16 experimental studies and six clinical studies). In experimental studies, PbtO2 was mainly adopted to assess the impact of gas exchanges, drugs, or systemic maneuvers on brain oxygenation. In human studies, PbtO2 was rarely used to monitor the brain oxygen tension in patients with CA and HIBI. PbtO2 values had no clear association with patients' outcomes, but in the experimental studies, brain tissue hypoxia was associated with increased inflammation and neuronal damage. CONCLUSIONS: Further studies are needed to validate the effect and the threshold of PbtO2 associated with outcome in patients with CA, as well as to understand the physiological mechanisms influencing PbtO2 induced by gas exchanges, drug administration, and changes in body positioning after CA.


Assuntos
Lesões Encefálicas , Parada Cardíaca , Hipóxia-Isquemia Encefálica , Humanos , Encéfalo , Oxigênio , Lesões Encefálicas/terapia , Parada Cardíaca/terapia , Parada Cardíaca/complicações , Hipóxia-Isquemia Encefálica/complicações
4.
Neurocrit Care ; 40(2): 633-644, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37498454

RESUMO

BACKGROUND: The aim of this study was to assess the prevalence of delayed deterioration of electroencephalogram (EEG) in patients with cardiac arrest (CA) without early highly malignant patterns and to determine their associations with clinical findings. METHODS: This was a retrospective study of adult patients with CA admitted to the intensive care unit (ICU) of a university hospital. We included all patients with CA who had a normal voltage EEG, no more than 10% discontinuity, and absence of sporadic epileptic discharges, periodic discharges, or electrographic seizures. Delayed deterioration was classified as the following: (1) epileptic deterioration, defined as the appearance, at least 24 h after CA, of sporadic epileptic discharges, periodic discharges, and status epilepticus; or (2) background deterioration, defined as increasing discontinuity or progressive attenuation of the background at least 24 h after CA. The end points were the incidence of EEG deteriorations and their association with clinical features and ICU mortality. RESULTS: We enrolled 188 patients in the analysis. The ICU mortality was 46%. Overall, 30 (16%) patients presented with epileptic deterioration and 9 (5%) patients presented with background deterioration; of those, two patients presented both deteriorations. Patients with epileptic deterioration more frequently had an out-of-hospital CA, and higher time to return of spontaneous circulation and less frequently had bystander resuscitation than others. Patients with background deterioration showed a predominantly noncardiac cause, more frequently developed shock, and had multiple organ failure compared with others. Patients with epileptic deterioration presented with a higher ICU mortality (77% vs. 41%; p < 0.01) than others, whereas all patients with background deterioration died in the ICU. CONCLUSIONS: Delayed EEG deterioration was associated with high mortality rate. Epileptic deterioration was associated with worse characteristics of CA, whereas background deterioration was associated with shock and multiple organ failure.


Assuntos
Epilepsia , Parada Cardíaca Extra-Hospitalar , Choque , Adulto , Humanos , Estudos de Coortes , Estudos Retrospectivos , Insuficiência de Múltiplos Órgãos/complicações , Epilepsia/epidemiologia , Eletroencefalografia , Parada Cardíaca Extra-Hospitalar/complicações
5.
Neurocrit Care ; 2023 Nov 22.
Artigo em Inglês | MEDLINE | ID: mdl-37991675

RESUMO

Intracranial multimodal monitoring (iMMM) is increasingly used for neurocritical care. However, concerns arise regarding iMMM invasiveness considering limited evidence in its clinical significance and safety profile. We conducted a synthesis of evidence regarding complications associated with iMMM to delineate its safety profile. We performed a systematic review and meta-analysis (PROSPERO Registration Number: CRD42021225951) according to the Preferred Reporting Items for Systematic Review and Meta-Analysis and Peer Review of Electronic Search Strategies guidelines to retrieve evidence from studies reporting iMMM use in humans that mention related complications. We assessed risk of bias using the Newcastle-Ottawa Scale and funnel plots. The primary outcomes were iMMM complications. The secondary outcomes were putative risk factors. Of the 366 screened articles, 60 met the initial criteria and were further assessed by full-text reading. We included 22 studies involving 1206 patients and 1434 iMMM placements. Most investigators used a bolt system (85.9%) and a three-lumen device (68.8%), mainly inserting iMMM into the most injured hemisphere (77.9%). A total of 54 postoperative intracranial hemorrhages (pooled rate of 4%; 95% confidence interval [CI] 0-10%; I2 86%, p < 0.01 [random-effects model]) was reported, along with 46 misplacements (pooled rate of 6%; 95% CI 1-12%; I2 78%, p < 0.01) and 16 central nervous system infections (pooled rate of 0.43%; 95% CI 0-2%; I2 64%, p < 0.01). We found 6 system breakings, 18 intracranial bone fragments, and 5 cases of pneumocephalus. Currently, iMMM systems present a similar safety profile as intracranial devices commonly used in neurocritical care. Long-term outcomes of prospective studies will complete the benefit-risk assessment of iMMM in neurocritical care. Consensus-based reporting guidelines on iMMM use are needed to bolster future collaborative efforts.

6.
Curr Opin Crit Care ; 28(2): 130-137, 2022 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-35058405

RESUMO

PURPOSE OF REVIEW: Fever is common after acute brain injury and is associated with poor prognosis in this setting. RECENT FINDINGS: Achieving normothermia is feasible in patients with ischemic or hemorrhagic stroke, subarachnoid hemorrhage and traumatic brain injury. Pharmacological strategies (i.e. paracetamol or nonsteroidal anti-inflammatory drugs) are frequently ineffective and physical (i.e. cooling devices) therapies are often required. There are no good quality data supporting any benefit from therapeutic strategies aiming at normothermia in all brain injured patients when compared with standard of care, where mild-to-moderate fever is tolerated. However, recent guidelines recommended fever control in this setting. SUMMARY: As fever is considered a clinically relevant secondary brain damage, we have provided an individualized therapeutic approach to treat it in brain injured patients, which deserved further validation in the clinical setting.


Assuntos
Lesões Encefálicas , Hemorragia Subaracnóidea , Encéfalo , Lesões Encefálicas/complicações , Lesões Encefálicas/terapia , Cuidados Críticos , Febre/complicações , Febre/terapia , Humanos , Hemorragia Subaracnóidea/complicações , Hemorragia Subaracnóidea/terapia
7.
Neurocrit Care ; 37(2): 547-557, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-35641804

RESUMO

BACKGROUND: Cerebral ischemia due to hypoxia is a major cause of secondary brain injury and is associated with higher morbidity and mortality in patients with acute brain injury. Hyperoxia could improve energetic dysfunction in the brain in this setting. Our objectives were to perform a systematic review and meta-analysis of the current literature and to assess the impact of normobaric hyperoxia on brain metabolism by using cerebral microdialysis. METHODS: We searched Medline and Scopus, following the recommendations of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement; we searched for retrospective and prospective observational studies, interventional studies, and randomized clinical trials that performed a hyperoxia challenge in patients with acute brain injury who were concomitantly monitored with cerebral microdialysis. This study was registered in PROSPERO (CRD420211295223). RESULTS: We included a total of 17 studies, with a total of 311 patients. A statistically significant reduction in cerebral lactate values (pooled standardized mean difference [SMD] - 0.38 [- 0.53 to - 0.23]) and lactate to pyruvate ratio values (pooled SMD - 0.20 [- 0.35 to - 0.05]) was observed after hyperoxia. However, glucose levels (pooled SMD - 0.08 [- 0.23 to 0.08]) remained unchanged after hyperoxia. CONCLUSIONS: Normobaric hyperoxia may improve cerebral metabolic disturbances in patients with acute brain injury. The clinical impact of such effects needs to be further elucidated.


Assuntos
Lesões Encefálicas , Hiperóxia , Lesões Encefálicas/complicações , Glucose , Humanos , Ácido Láctico/metabolismo , Microdiálise , Estudos Observacionais como Assunto , Ácido Pirúvico/metabolismo , Estudos Retrospectivos
8.
Neurocrit Care ; 34(3): 1000-1008, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33083966

RESUMO

BACKGROUND: Respiratory complications are frequently reported after aneurismal subarachnoid hemorrhage (aSAH), even if their association with outcome remains controversial. Acute respiratory distress syndrome (ARDS) is one of the most severe pulmonary complications after aSAH, with a reported incidence ranging from 11 to 50%. This study aims to assess in a large cohort of aSAH patients, during the first week after an intensive care unit (ICU) admission, the incidence of ARDS defined according to the Berlin criteria and its effect on outcome. METHODS: This is a multicentric, retrospective cohort study in 3 European intensive care units. We collected data between January 2009 and December 2017. We included adult patients (≥ 18 years) with a diagnosis of aSAH admitted to the ICU. RESULTS: A total of 855 patients fulfilled the inclusion criteria. ARDS was assessable in 851 patients. The cumulative incidence of ARDS was 2.2% on the first day since ICU admission, 3.2% on day three, and 3.6% on day seven. At the univariate analysis, ARDS was associated with a poor outcome (p = 0.005) at ICU discharge, and at the multivariable analysis, patients with ARDS showed a worse neurological outcome (Odds ratio = 3.00, 95% confidence interval 1.16-7.72; p = 0.023). CONCLUSIONS: ARDS has a low incidence in the first 7 days of ICU stay after aSAH, but it is associated with worse outcome.


Assuntos
Síndrome do Desconforto Respiratório , Hemorragia Subaracnóidea , Adulto , Estudos de Coortes , Humanos , Incidência , Unidades de Terapia Intensiva , Respiração Artificial , Síndrome do Desconforto Respiratório/epidemiologia , Síndrome do Desconforto Respiratório/etiologia , Estudos Retrospectivos , Hemorragia Subaracnóidea/complicações , Hemorragia Subaracnóidea/epidemiologia
10.
Life (Basel) ; 14(3)2024 Mar 18.
Artigo em Inglês | MEDLINE | ID: mdl-38541727

RESUMO

We investigated independent factors predicting neurological outcome and death, comparing in-hospital (IHCA) and out-of-hospital cardiac arrest (OHCA) patients. The study was conducted in the mixed 34-bed Intensive Care Department at the Hôpital Universitaire de Bruxelles (HUB), Belgium. All adult consecutive cardiac arrest (CA) survivors were included between 2004 and 2022. For all patients, demographic data, medical comorbidities, CA baseline characteristics, treatments received during Intensive Care Unit stay, in-hospital major complications, and neurological outcome at three months after CA, using the Cerebral Performance Category (CPC) scale, were collected. In the multivariable analysis, in the IHCA group (n = 540), time to return of spontaneous circulation (ROSC), older age, unwitnessed CA, higher lactate on admission, asystole as initial rhythm, a non-cardiac cause of CA, the occurrence of shock, the occurrence of acute kidney injury (AKI), and the presence of previous neurological disease and of liver cirrhosis were independent predictors of an unfavorable neurological outcome. Among patients with OHCA (n = 567), time to ROSC, older age, higher lactate level on admission, unwitnessed CA, asystole or pulseless electrical activity (PEA) as initial rhythm, the occurrence of shock, a non-cardiac cause of CA, and a previous neurological disease were independent predictors of an unfavorable neurological outcome. To conclude, in our large cohort of mixed IHCA and OHCA patients, we observed numerous factors independently associated with a poor neurological outcome, with minimal differences between the two groups, reflecting the greater vulnerability of hospitalized patients.

11.
Anaesth Crit Care Pain Med ; 42(2): 101175, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36396073

RESUMO

This prospective observational study included 80 adults (>18 years) patients admitted to the intensive care unit who were unconscious (Glasgow Coma Scale [GCS] score <9 with a motor response <5) and receiving mechanical ventilation. A tetanic stimulation was used to assess nociception; automated pupillometry (Algiscan, ID-MED, France) was used to compute the pupillary pain index score (PPI), with a PPI > 4 considered as nociception. Concomitantly, the number of skin conductance fluctuations (NSCF) per second, measured using a Skin Conductance Algesimeter (SCA, MEDSTORM Innovation AS, Norway; > 0.27 fluctuations/sec indicating nociception), and the instantaneous Analgesia Nociception Index (iANI, MDoloris Medical Systems, France; <50 indicating nociception) were collected. Tetanic stimulation resulted in a median pupillary dilation of 16 [6-25]% and a PPI of 5 [2-7]. According to the PPI assessment, 44 patients (55%) had nociception, whereas 23 (29%) and 18 (23%) showed nociception according to the algesimeter and iANI assessment, respectively. No significant changes in measured physiologic variables were observed after the tetanic stimulation. There were no correlations between PPI, post-stimulation iANI, and SCA-derived variables. There were no differences in PPI, iANI, and SCA variables in patients with low and normal baseline EEG power at baseline. PERSPECTIVES: Detection of nociception varies across different devices in unconscious critically ill patients. Further studies are required to understand which method to implement for analgesic administration in this patient population.


Assuntos
Analgesia , Nociceptividade , Adulto , Humanos , Nociceptividade/fisiologia , Estado Terminal , Dor , Analgesia/métodos , Manejo da Dor
12.
Resuscitation ; 176: 125-131, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-35504344

RESUMO

BACKGROUND: The prognostic role of the Pupillary Pain Index (PPI), derived from automated pupillometry, remains unknown in post-anoxic brain injury. METHODS: Single-center retrospective study in adult comatose cardiac arrest (CA) patients. Quantitative PPI and Neurologic Pupil Index (NPi) were concomitantly recorded on day 1 and day 2 after CA. The primary outcome was to assess the prognostic value of PPI to predict 3-month unfavourable outcome (UO, defined as Cerebral Performance Category of 3-5). Secondary outcome was the agreement between PPI and NPi to predict unfavourable outcome. RESULTS: A total of 102 patients were included; patients with UO (n = 69, 68%) showed a lower NPi (4.2 [3.5-4.5] vs. 4.6 [4.3-4.7]; p < 0.01 on day 1-4.3 [3.8-4.7] vs 4.6 [4.3-4.8] on day 2), and PPI (3 [1-6] vs. 6 [3-7]; p < 0.01 on day 1-3 [1-6] vs 6 [4-8]; p < 0.01 on day 2) than others. A PPI = 1 on day 2 showed a sensitivity of 26 [95% CI 16-38]% and a specificity of 100 [95% CI 89-100]% to predict UO (p = 0.003 vs. NPi ≤ 2). On day 2, a total of 6 patients had concomitant PPI = 1 and NPi ≤ 2, while 12 showed NPi > 2 and PPI = 1; the coefficient of agreement was 0.42. Moreover, NPi and PPI values showed a moderate correlation both on day 1 and day 2. CONCLUSIONS: In this study, PPI = 1 on day 2 could predict UO in comatose CA patients with 100% specificity, but with a low sensitivity (yet higher than NPi). The agreement between PPI and NPi values was moderate.


Assuntos
Coma , Parada Cardíaca , Adulto , Coma/complicações , Coma/etiologia , Parada Cardíaca/complicações , Parada Cardíaca/terapia , Humanos , Dor/complicações , Prognóstico , Pupila , Reflexo Pupilar , Estudos Retrospectivos
13.
Antibiotics (Basel) ; 11(6)2022 May 24.
Artigo em Inglês | MEDLINE | ID: mdl-35740112

RESUMO

Few data are available on infectious complications in critically ill patients with different viral infections. We performed a retrospective monocentric study including all of the patients admitted to the intensive care unit (ICU) with confirmed COVID-19 (as of 13 March 2020) or Influenza A and/or B infections (as of 1 January 2015) until 20 April 2020. Coinfection and secondary infections (occurring within and after 48 h from admission, respectively) were recorded. Fifty-seven COVID-19 and 55 Influenza patients were included. Co-infections were documented in 13/57 (23%) COVID-19 patients vs. 40/55 (73%) Influenza patients (p < 0.001), most of them being respiratory (9/13, 69% vs. 35/40, 88%; p = 0.13) and of bacterial origin (12/13, 92% vs. 29/40, 73%; p = 0.25). Invasive aspergillosis infections were observed only in Influenza patients (8/55, 15%). The COVID-19 and Influenza patients presented 1 (0−4) vs. 0 (0−4) secondary infections (p = 0.022), with comparable sites being affected (lungs: 35/61, 57% vs. 13/31, 42%; p = 0.16) and causative pathogens occurring (Gram-negative bacteria: 51/61, 84% vs. 23/31, 74%; p > 0.99). The COVID-19 patients had longer ICU lengths of stay (15 (−65) vs. 5 (1−89) days; p = 0.001), yet the two groups had comparable mortality rates (20/57, 35% vs. 23/55, 41%; p = 0.46). We report fewer co-infections but more secondary infections in the ICU COVID-19 patients compared to the Influenza patients. Most of the infectious complications were respiratory and of bacterial origin.

14.
Brain Sci ; 11(2)2021 Feb 03.
Artigo em Inglês | MEDLINE | ID: mdl-33546105

RESUMO

There is a persistent debate on the optimal target temperature to use during cooling procedures in cardiac arrest survivors. A large randomized clinical trial (RCT) including more than 900 patients showed that targeted temperature management (TTM) at 33 °C had similar mortality and unfavorable neurological outcome (UO) rates as TTM at 36 °C in out-of-hospital cardiac arrest patients with any initial rhythm. Since then, several observational studies have been published on the effects of changes in target temperature (i.e., from 33 to 36 °C) on patients' outcome. We performed a systematic literature search from 1 January 2014 to 4 December 2020 and identified nine retrospective studies (very low levels of certainty; high risk of bias), including 3799 patients, that evaluated TTM at 33 °C vs. TTM at 36 °C on the occurrence of UO (n = seven studies) and mortality (n = nine studies). TTM at 33 °C was associated with a lower risk of UO when studies assessing neurological outcome with the Cerebral Performance Categories were analyzed (OR 0.80 [95% CIs 0.65-0.99]; p = 0.04). No differences in mortality were observed within the two TTM strategies. These results suggest that an inappropriate translation of TTM protocols from large well-conducted randomized trials into clinical management may result in unexpected effects on patients' outcome. As for all newly commercialized drugs, epidemiological studies and surveillance programs with an adequate follow-up on large databases are necessary to understand how RCTs are implemented into medical practice.

15.
Ann Intensive Care ; 11(1): 176, 2021 Dec 16.
Artigo em Inglês | MEDLINE | ID: mdl-34914011

RESUMO

BACKGROUND: Fluid management in patients after subarachnoid hemorrhage (SAH) aims at the optimization of cerebral blood flow and brain oxygenation. In this study, we investigated the effects of hemodynamic management on brain oxygenation by integrating advanced hemodynamic and invasive neuromonitoring. METHODS: This observational cohort bi-center study included data of consecutive poor-grade SAH patients who underwent pulse contour cardiac output (PiCCO) monitoring and invasive neuromonitoring. Fluid management was guided by the transpulmonary thermodilution system and aimed at euvolemia (cardiac index, CI ≥ 3.0 L/min/m2; global end-diastolic index, GEDI 680-800 mL/m2; stroke volume variation, SVV < 10%). Patients were managed using a brain tissue oxygenation (PbtO2) targeted protocol to prevent brain tissue hypoxia (BTH, PbtO2 < 20 mmHg). To assess the association between CI and PbtO2 and the effect of fluid challenges on CI and PbtO2, we used generalized estimating equations to account for repeated measurements. RESULTS: Among a total of 60 included patients (median age 56 [IQRs 47-65] years), BTH occurred in 23% of  the monitoring time during the first 10 days since admission. Overall, mean CI was within normal ranges (ranging from 3.1 ± 1.3 on day 0 to 4.1 ± 1.1 L/min/m2 on day 4). Higher CI levels were associated with higher PbtO2 levels (Wald = 14.2; p < 0.001). Neither daily fluid input nor fluid balance was associated with absolute PbtO2 levels (p = 0.94 and p = 0.85, respectively) or the occurrence of BTH (p = 0.68 and p = 0.71, respectively). PbtO2 levels were not significantly different in preload dependent patients compared to episodes of euvolemia. PbtO2 increased as a response to fluid boluses only if BTH was present at baseline (from 13 ± 6 to 16 ± 11 mmHg, OR = 13.3 [95% CI 2.6-67.4], p = 0.002), but not when all boluses were considered (p = 0.154). CONCLUSIONS: In this study a moderate association between increased cardiac output and brain oxygenation was observed. Fluid challenges may improve PbtO2 only in the presence of baseline BTH. Individualized hemodynamic management requires advanced cardiac and brain monitoring in critically ill SAH patients.

17.
Rev. APS ; 14(3)jul.-set. 2011.
Artigo em Português | LILACS | ID: lil-621422

RESUMO

A hipertensão arterial é uma doença de elevada prevalênciana população mundial, sendo fator de risco para doençascardiovasculares. No nosso país, o Programa Nacional deHipertensão Arterial vem evoluindo com altas taxas deabandono às consultas e baixa aderência às medidas geraise medicamentosas. A satisfação dos usuários com a atençãoprestada pelo sistema de saúde é indicador de qualidadedos serviços e poderoso instrumento para melhorar aadesão e reduzir o abandono. Em 2001, foi implementadoum modelo de atendimento alternativo, caracterizado porconsultas por vários profissionais (médico, enfermeiro enutricionista), em rodízio, coexistente ao modelo médicotradicional, em uma unidade básica do Município do Riode Janeiro. Avaliou-se a satisfação dos usuários após um ecinco anos de acompanhamento, através de questionáriopreviamente validado. Após o primeiro ano, não houvediferenças significativas na satisfação em geral com os serviçosprestados em ambos os modelos de atenção (89,6%X 95,9% p=0,1). Após cinco anos, houve maior percentualde pacientes extremamente e/ou bastante satisfeitos noatendimento pelos vários profissionais em relação àquelesatendidos apenas pelos médicos (97,2 X 78% p<0,0001).A satisfação foi melhor também em relação à acessibilidadee à qualidade da consulta. Este fato pode ser atribuído àcriação de maior vínculo dos pacientes com os profissionaisda equipe de saúde após um intervalo de tempo suficientepara que se sentissem seguros em relação ao atendimentona Instituição, garantindo respostas mais livres e reais.


Arterial Hypertension, which is a highly prevalent conditionaround the world, increases the risk of cardiovasculardiseases. The Brazilian National Program of Hypertensionhas experimented high drop-out rates and low rates ofcompliance with general and drug therapies. Customers`satisfaction with the care provided by the health system isan indicator of the quality of the services rendered and apowerful instrument to improve compliance and reducedrop-out. In 2001, an alternative model of care, characterizedby consultation with several professionals in rotation(physician, nurse and nutritionist), was implemented tocoexist with a traditional model, in a primary care unit ofthe municipality of Rio de Janeiro, Southeastern Brazil.Customers` satisfaction after 1-year and 5-year follow-upwas assessed with a previously validated questionnaire.After the first year, no significant difference in customers`satisfaction with the services rendered by both models wasnoted (89.6% X 95.9%; p=0.1). After five years, there wasa higher rate of extremely and/or very satisfied customersamong those cared for by several professionals, comparedwith those cared for by physicians only (97.2% X 78%;p<0.0001). Satisfaction was also greater as for access to theservices and the quality of the consultations. This fact maybe accounted for by closer links with the health team after aperiod long enough to foster a feeling of safety with the carereceived, thus leading to freer and more realistic answers.


Assuntos
Comportamento do Consumidor , Hipertensão , Atenção Primária à Saúde , Centros de Saúde , Gestão da Qualidade Total
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