Você pesquisou por y?yr=2009 - Critical Care Science (CCS)
Abstract
Rev Bras Ter Intensiva. 2009;21(2):113-123
DOI 10.1590/S0103-507X2009000200001
OBJECTIVE: To evaluate the impact of implementing an institutional policy for detection of severe sepsis and septic shock. METHODS: Study before (stage I), after (stage II) with prospective data collection in a 195 bed public hospital.. Stage I: Patients with severe sepsis or septic shock were included consecutively over 15 months and treated according to the Surviving Sepsis Campaign guidelines. Stage II: In the 10 subsequent months, patients with severe sepsis or septic shock were enrolled based on an active search for signs suggesting infection (SSI) in hospitalized patients. The two stages were compared for demographic variables, time needed for recognition of at least two signs suggesting infection (SSI-Δt), compliance to the bundles of 6 and 24 hours and mortality. RESULTS: We identified 124 patients with severe sepsis or septic shock, 68 in stage I and 56 in stage II. The demographic variables were similar in both stages. The Δt-SSI was 34 ± 54 hours in stage I and 7 ± 8.4 hours in stage II (p <0.001). There was no difference in compliance to the bundles. In parallel there was significant reduction of mortality rates at 28 days (54.4% versus 30%, p <0.02) and hospital (67.6% versus 41%, p <0.003). CONCLUSION: The strategy used helped to identify early risk of sepsis and resulted in decreased mortality associated with severe sepsis and septic shock.
Abstract
Rev Bras Ter Intensiva. 2009;21(2):113-123
DOI 10.1590/S0103-507X2009000200001
OBJECTIVE: To evaluate the impact of implementing an institutional policy for detection of severe sepsis and septic shock. METHODS: Study before (stage I), after (stage II) with prospective data collection in a 195 bed public hospital.. Stage I: Patients with severe sepsis or septic shock were included consecutively over 15 months and treated according to the Surviving Sepsis Campaign guidelines. Stage II: In the 10 subsequent months, patients with severe sepsis or septic shock were enrolled based on an active search for signs suggesting infection (SSI) in hospitalized patients. The two stages were compared for demographic variables, time needed for recognition of at least two signs suggesting infection (SSI-Δt), compliance to the bundles of 6 and 24 hours and mortality. RESULTS: We identified 124 patients with severe sepsis or septic shock, 68 in stage I and 56 in stage II. The demographic variables were similar in both stages. The Δt-SSI was 34 ± 54 hours in stage I and 7 ± 8.4 hours in stage II (p <0.001). There was no difference in compliance to the bundles. In parallel there was significant reduction of mortality rates at 28 days (54.4% versus 30%, p <0.02) and hospital (67.6% versus 41%, p <0.003). CONCLUSION: The strategy used helped to identify early risk of sepsis and resulted in decreased mortality associated with severe sepsis and septic shock.
Abstract
Rev Bras Ter Intensiva. 2009;21(2):124-128
DOI 10.1590/S0103-507X2009000200002
OBJECTIVE: Evaluate the nutritional status of patients with cardiac disease and concomitant renal dysfunction requiring renal replacement therapy. METHODS: Patients with cardiac disease and renal failure receiving renal replacement therapy, admitted to an intensive care unit, were submitted to nutritional evaluation, by use of anthropometric measurements and laboratory data. RESULTS: We studied 43 patients, mean age 64±15 years, 26 were men. The mean left ventricular ejection fraction was 0.36±0.16. Analysis of anthropometric measurements, based on body mass index disclosed that, 18 patients were normal, 6 were underweight and 19 were overweight or obese. Based on measurement of triceps skinfold thickness, 16 patients were considered normal and 27 had some degree of depletion. Measurements of midarm circumference and midarm muscular circumference showed 41 patients with some degree of depletion. Laboratory data revealed 28 patients with depletion based on albumin levels and 27 with depletion based on lymphocyte count. CONCLUSIONS: Malnutrition is common in critically ill patients with cardiac disease and renal failure receiving renal replacement therapy. Nutritional assessment based on body mass index did not prove to be a good index for diagnosis of nutritional disorders. The nutritional evaluation must be complemented in order to identify malnutrition and introduce early nutritional support.
Abstract
Rev Bras Ter Intensiva. 2009;21(2):124-128
DOI 10.1590/S0103-507X2009000200002
OBJECTIVE: Evaluate the nutritional status of patients with cardiac disease and concomitant renal dysfunction requiring renal replacement therapy. METHODS: Patients with cardiac disease and renal failure receiving renal replacement therapy, admitted to an intensive care unit, were submitted to nutritional evaluation, by use of anthropometric measurements and laboratory data. RESULTS: We studied 43 patients, mean age 64±15 years, 26 were men. The mean left ventricular ejection fraction was 0.36±0.16. Analysis of anthropometric measurements, based on body mass index disclosed that, 18 patients were normal, 6 were underweight and 19 were overweight or obese. Based on measurement of triceps skinfold thickness, 16 patients were considered normal and 27 had some degree of depletion. Measurements of midarm circumference and midarm muscular circumference showed 41 patients with some degree of depletion. Laboratory data revealed 28 patients with depletion based on albumin levels and 27 with depletion based on lymphocyte count. CONCLUSIONS: Malnutrition is common in critically ill patients with cardiac disease and renal failure receiving renal replacement therapy. Nutritional assessment based on body mass index did not prove to be a good index for diagnosis of nutritional disorders. The nutritional evaluation must be complemented in order to identify malnutrition and introduce early nutritional support.
Abstract
Rev Bras Ter Intensiva. 2009;21(2):129-134
DOI 10.1590/S0103-507X2009000200003
OBJECTIVE: Assess the agreement between the energy expenditure measured by indirect calorimetry and that estimated by the Ireton-Jones formula of critically ill patients under assisted mechanical ventilation. METHODS: Participated in the study individuals able to interrupt ventilation support, admitted at the center of intensive care of the Hospital de Clínicas de Porto Alegre - RS, between August 2006 and January 2007. Energy expenditure was measured by indirect calorimetry using a specific monitor, as well as estimated by the Ireton-Jones formula. Values found were analyzed using the Student's t test and the Bland and Altman method and expressed in mean, ± standard deviation with a significance level of p<0.05. RESULTS: The study included forty patients with a mean age of 56±16 years and APACHE II score of 23±8. Energy expenditure measured by indirect calorimetry was of 1558±304kcal/24h, while that estimated by Ireton-Jones was of 1689±246kcal/24h. There was a significant statistical difference between means of energy expenditure measured and estimated of the same individual (p<0.004). The agreement thresholds between indirect calorimetry and the Ireton-Jones equation were of -680.51 to 417.81 kcal. CONCLUSION: Energy expenditure estimated by the Ireton-Jones formula did not present good agreement with that measured by indirect calorimetry, however, considering aspects related to availability of the equipment, this equation may be useful in the nutritional planning for critically ill patients.
Abstract
Rev Bras Ter Intensiva. 2009;21(2):129-134
DOI 10.1590/S0103-507X2009000200003
OBJECTIVE: Assess the agreement between the energy expenditure measured by indirect calorimetry and that estimated by the Ireton-Jones formula of critically ill patients under assisted mechanical ventilation. METHODS: Participated in the study individuals able to interrupt ventilation support, admitted at the center of intensive care of the Hospital de Clínicas de Porto Alegre - RS, between August 2006 and January 2007. Energy expenditure was measured by indirect calorimetry using a specific monitor, as well as estimated by the Ireton-Jones formula. Values found were analyzed using the Student's t test and the Bland and Altman method and expressed in mean, ± standard deviation with a significance level of p<0.05. RESULTS: The study included forty patients with a mean age of 56±16 years and APACHE II score of 23±8. Energy expenditure measured by indirect calorimetry was of 1558±304kcal/24h, while that estimated by Ireton-Jones was of 1689±246kcal/24h. There was a significant statistical difference between means of energy expenditure measured and estimated of the same individual (p<0.004). The agreement thresholds between indirect calorimetry and the Ireton-Jones equation were of -680.51 to 417.81 kcal. CONCLUSION: Energy expenditure estimated by the Ireton-Jones formula did not present good agreement with that measured by indirect calorimetry, however, considering aspects related to availability of the equipment, this equation may be useful in the nutritional planning for critically ill patients.
Abstract
Rev Bras Ter Intensiva. 2009;21(2):135-140
DOI 10.1590/S0103-507X2009000200004
OBJECTIVES: Critical Care Medicine is a relatively new specialty, which in recent years has made significant progress in Brazil. However, few physicians are willing to acquire this specialization. The main objective of this study was to describe the factors associated with choice of Critical Care Medicine as a specialty by medical residents of Salvador-BA. METHODS: A cross-sectional and descriptive study, in which a questionnaire was submitted to all residents of the specialties that are a prerequisite for Critical Care Medicine (Clinical Medicine, General Surgery and Anesthesiology), between October and December 2007. RESULTS: The study included 165 residents (89.7% of the total), in which 51.5% were clinical medicine residents, 25.5% were general surgery residents, and 23.0% were anesthesiology residents. Of the respondents, 14 (9.1%) intended to enter Critical Care Medicine residency, although 90 (54.5%) were willing to become intensive care unit physicians after their regular residency. The main reason stated to specialize in critical care medicine was to like work with critically ill patients (92.9%). The main reasons stated not to specialize in critical care medicine, however were related with the poorer quality of life and work. Residents who did intensive care unit initernship during medical studies were more likely to work in an intensive care units after residency. CONCLUSIONS: This population showed little interest to specialize in critical care medicine. The main reasons given for this limited interest were factors related to quality of life and intensive care unit environment. A national survey is required to identify the interventions needed to favor this specialization.
Abstract
Rev Bras Ter Intensiva. 2009;21(2):135-140
DOI 10.1590/S0103-507X2009000200004
OBJECTIVES: Critical Care Medicine is a relatively new specialty, which in recent years has made significant progress in Brazil. However, few physicians are willing to acquire this specialization. The main objective of this study was to describe the factors associated with choice of Critical Care Medicine as a specialty by medical residents of Salvador-BA. METHODS: A cross-sectional and descriptive study, in which a questionnaire was submitted to all residents of the specialties that are a prerequisite for Critical Care Medicine (Clinical Medicine, General Surgery and Anesthesiology), between October and December 2007. RESULTS: The study included 165 residents (89.7% of the total), in which 51.5% were clinical medicine residents, 25.5% were general surgery residents, and 23.0% were anesthesiology residents. Of the respondents, 14 (9.1%) intended to enter Critical Care Medicine residency, although 90 (54.5%) were willing to become intensive care unit physicians after their regular residency. The main reason stated to specialize in critical care medicine was to like work with critically ill patients (92.9%). The main reasons stated not to specialize in critical care medicine, however were related with the poorer quality of life and work. Residents who did intensive care unit initernship during medical studies were more likely to work in an intensive care units after residency. CONCLUSIONS: This population showed little interest to specialize in critical care medicine. The main reasons given for this limited interest were factors related to quality of life and intensive care unit environment. A national survey is required to identify the interventions needed to favor this specialization.
Abstract
Rev Bras Ter Intensiva. 2009;21(2):141-147
DOI 10.1590/S0103-507X2009000200005
OBJECTIVES: To evaluate the medical decisions at end-of-life of patients admitted at HU/UFSC and to compare these decisions and the profile of patients who died in the intensive care unit (ICU) to those who died in medical (MW) and surgical wards (SW). METHODS: This is a retrospective and observational study. Demographic data, clinical features, treatment and the end-of-life care decisions of adult patients who died in wards and the intensive care unit of HU/UFSC from July/2004 to December/2008 were analyzed . For statistical analysis the Student's t, χ2 and ANOVA tests were used: (significance p <0.05). RESULTS: An analysis was made of 1124 deaths: 404 occurred in ICU, 607 in MW and 113 in SW. The overall hospital mortality rate was 5.9% (ICU=24.49%, MW=7.2%, SW=1.69%). Mean ages of patients were: ICU=56.7, MW=69.3 and SW=70.4 years (p <0.01). Withholding/withdrawing life support was performed prior to 30.7% of deaths in the intensive care unit and 10% in the wards (p <0.01). Cardiopulmonary resuscitation was not carried out in 65% of cases in ICU, 79% in MW and 62% in SW. Besides cardiopulmonary resuscitation, the more frequent withholding/withdrawing life support in the intensive care unit were vasoactive drugs and in the wards refusal of admission to intensive care unit . Do-not-resuscitate order was documented in 2.4% of cases in ICU and 2.6% in MW. Palliative and comfort care were provided to 2% of patients in ICU, 11.5% in MW and 8% in SW. Terminality of the disease was recognized in 40% of cases in ICU, 34.6% in MW and 16.8% in SW. CONCLUSIONS: The profile of patients who died and medical decisions during the end-of-life process were different in the intensive care unit, clinical and surgical wards.
Abstract
Rev Bras Ter Intensiva. 2009;21(2):141-147
DOI 10.1590/S0103-507X2009000200005
OBJECTIVES: To evaluate the medical decisions at end-of-life of patients admitted at HU/UFSC and to compare these decisions and the profile of patients who died in the intensive care unit (ICU) to those who died in medical (MW) and surgical wards (SW). METHODS: This is a retrospective and observational study. Demographic data, clinical features, treatment and the end-of-life care decisions of adult patients who died in wards and the intensive care unit of HU/UFSC from July/2004 to December/2008 were analyzed . For statistical analysis the Student's t, χ2 and ANOVA tests were used: (significance p <0.05). RESULTS: An analysis was made of 1124 deaths: 404 occurred in ICU, 607 in MW and 113 in SW. The overall hospital mortality rate was 5.9% (ICU=24.49%, MW=7.2%, SW=1.69%). Mean ages of patients were: ICU=56.7, MW=69.3 and SW=70.4 years (p <0.01). Withholding/withdrawing life support was performed prior to 30.7% of deaths in the intensive care unit and 10% in the wards (p <0.01). Cardiopulmonary resuscitation was not carried out in 65% of cases in ICU, 79% in MW and 62% in SW. Besides cardiopulmonary resuscitation, the more frequent withholding/withdrawing life support in the intensive care unit were vasoactive drugs and in the wards refusal of admission to intensive care unit . Do-not-resuscitate order was documented in 2.4% of cases in ICU and 2.6% in MW. Palliative and comfort care were provided to 2% of patients in ICU, 11.5% in MW and 8% in SW. Terminality of the disease was recognized in 40% of cases in ICU, 34.6% in MW and 16.8% in SW. CONCLUSIONS: The profile of patients who died and medical decisions during the end-of-life process were different in the intensive care unit, clinical and surgical wards.
Abstract
Rev Bras Ter Intensiva. 2009;21(2):148-154
DOI 10.1590/S0103-507X2009000200006
PURPOSE: Identify and evaluate the perception of Intensivist Nurses in a University Hospital in Londrina, of dysthanasia in terminal patients at the Intensive Care Unit. METHODS: Qualitative study. Data were collected by semi-structured recorded interview involving nine nurses working in a university hospital intensive care units, during January 2009. A thematic analysis was used to evaluate subjects' speech and identify discussion categories. RESULTS: Five categories were identified, discussed based on the authors' experience and literature, namely: measures prolonging life of patients with no chance of cure in the intensive care unit; nurses' actions/reactions when facing dysthanasia; reasons leading to prolonging life of patients with no chance of cure; nurses' feelings about dysthanasia and life prolongation; care measures as opposed to dysthanasia. CONCLUSION: Experiencing of nurses when facing dysthanasia actions was shown to be complex, a factor of suffering, frustration and discomfort for these professionals. In the nurses' view, lack of communication stands out as an important factor for dysthanasia, and measures to replace dysthanasia are those relieving suffering.
Abstract
Rev Bras Ter Intensiva. 2009;21(2):148-154
DOI 10.1590/S0103-507X2009000200006
PURPOSE: Identify and evaluate the perception of Intensivist Nurses in a University Hospital in Londrina, of dysthanasia in terminal patients at the Intensive Care Unit. METHODS: Qualitative study. Data were collected by semi-structured recorded interview involving nine nurses working in a university hospital intensive care units, during January 2009. A thematic analysis was used to evaluate subjects' speech and identify discussion categories. RESULTS: Five categories were identified, discussed based on the authors' experience and literature, namely: measures prolonging life of patients with no chance of cure in the intensive care unit; nurses' actions/reactions when facing dysthanasia; reasons leading to prolonging life of patients with no chance of cure; nurses' feelings about dysthanasia and life prolongation; care measures as opposed to dysthanasia. CONCLUSION: Experiencing of nurses when facing dysthanasia actions was shown to be complex, a factor of suffering, frustration and discomfort for these professionals. In the nurses' view, lack of communication stands out as an important factor for dysthanasia, and measures to replace dysthanasia are those relieving suffering.
Abstract
Rev Bras Ter Intensiva. 2009;21(2):155-161
DOI 10.1590/S0103-507X2009000200007
OBJECTIVES: Patients unable to perform breathing functions may be submitted to invasive mechanical ventilation. Chest physiotherapy acts directly on the treatment of these patients for the purpose of improving their lung function. The objective of this study was to evaluate the effects of manual rib-cage compression versus the positive end expiratory pressure-zero end expiratory pressure (PEEP-ZEEP) maneuver, on compliance of the respiratory system and oxygenation in patients under invasive mechanical ventilation. METHODS: A double centric, prospective, randomized and crossover study, with patients under invasive mechanical ventilation, in controlled mode for more than 48 hours was carried out. The protocols of chest physiothe-rapy were randomly applied at an interval of 24 hours. Data of respiratory system compliance and oxygenation were collected before application of the protocols and 30 minutes after. RESULTS: Twelve patients completed the study. Intragroup analysis, for both techniques showed a statistically significant difference in tidal volume (p=0.002), static compliance (p=0.002) and dynamic compliance (p=0.002). In relation to oxygenation, in the group of manual rib-cage compression, peripheral oxygen saturation increased with a significant difference (p=0.011). CONCLUSIONS: Manual rib-cage compression and PEEP-ZEEP maneuver have positive clinical effects. In relation to oxygenation we found a favorable behavior of peripheral oxygen saturation in the group of manual rib-cage compression.
Abstract
Rev Bras Ter Intensiva. 2009;21(2):155-161
DOI 10.1590/S0103-507X2009000200007
OBJECTIVES: Patients unable to perform breathing functions may be submitted to invasive mechanical ventilation. Chest physiotherapy acts directly on the treatment of these patients for the purpose of improving their lung function. The objective of this study was to evaluate the effects of manual rib-cage compression versus the positive end expiratory pressure-zero end expiratory pressure (PEEP-ZEEP) maneuver, on compliance of the respiratory system and oxygenation in patients under invasive mechanical ventilation. METHODS: A double centric, prospective, randomized and crossover study, with patients under invasive mechanical ventilation, in controlled mode for more than 48 hours was carried out. The protocols of chest physiothe-rapy were randomly applied at an interval of 24 hours. Data of respiratory system compliance and oxygenation were collected before application of the protocols and 30 minutes after. RESULTS: Twelve patients completed the study. Intragroup analysis, for both techniques showed a statistically significant difference in tidal volume (p=0.002), static compliance (p=0.002) and dynamic compliance (p=0.002). In relation to oxygenation, in the group of manual rib-cage compression, peripheral oxygen saturation increased with a significant difference (p=0.011). CONCLUSIONS: Manual rib-cage compression and PEEP-ZEEP maneuver have positive clinical effects. In relation to oxygenation we found a favorable behavior of peripheral oxygen saturation in the group of manual rib-cage compression.
Abstract
Rev Bras Ter Intensiva. 2009;21(2):162-168
DOI 10.1590/S0103-507X2009000200008
OBJECTIVE: The purpose of this study was to determine the place of stay at postoperative and to verify medical-surgical complications that would justify admission to the intensive care unit, including death. METHODS: Cross-over, prospective, open study that evaluated 120 patients who were submitted to primary bariatric surgery by video laparoscopy from May 2007 to April 2008 in a tertiary hospital. The Aldrete Kroulik index was used for release from the post-anesthesia recovery room and to define where the patient should be routinely referred for postoperative. RESULTS: Among the 120 patients, 83 were women and 37 men with a mean age ranging from 35.4 ± 10.5 years (18 to 66 years), body mass index 45.6 ± 10.5. The time between hospital admission and start of surgery was 140.7 ± 81.8 minutes, surgery time was 105 ± 28.6 minutes, time of post-anesthesia recovery room was between 125 ± 38 minutes and length of hospital stay was 47.7 ± 12.4 hours, with 100% of the patients walking in 24 hours. The Aldrete and Kroulik index in the post-anesthesia recovery room achieved scores of 10 to 120 minutes in all patients, with a 100% survival . CONCLUSION: Using the Aldrete and Kroulik index in the post-anesthesia of gastric bypass by video laparoscopy in primary bariatric surgery, no patient was admitted in intensive care unit and no major complication was observed.
Abstract
Rev Bras Ter Intensiva. 2009;21(2):162-168
DOI 10.1590/S0103-507X2009000200008
OBJECTIVE: The purpose of this study was to determine the place of stay at postoperative and to verify medical-surgical complications that would justify admission to the intensive care unit, including death. METHODS: Cross-over, prospective, open study that evaluated 120 patients who were submitted to primary bariatric surgery by video laparoscopy from May 2007 to April 2008 in a tertiary hospital. The Aldrete Kroulik index was used for release from the post-anesthesia recovery room and to define where the patient should be routinely referred for postoperative. RESULTS: Among the 120 patients, 83 were women and 37 men with a mean age ranging from 35.4 ± 10.5 years (18 to 66 years), body mass index 45.6 ± 10.5. The time between hospital admission and start of surgery was 140.7 ± 81.8 minutes, surgery time was 105 ± 28.6 minutes, time of post-anesthesia recovery room was between 125 ± 38 minutes and length of hospital stay was 47.7 ± 12.4 hours, with 100% of the patients walking in 24 hours. The Aldrete and Kroulik index in the post-anesthesia recovery room achieved scores of 10 to 120 minutes in all patients, with a 100% survival . CONCLUSION: Using the Aldrete and Kroulik index in the post-anesthesia of gastric bypass by video laparoscopy in primary bariatric surgery, no patient was admitted in intensive care unit and no major complication was observed.
