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  • 1
    In: BJS Open, Oxford University Press (OUP), Vol. 6, No. 6 ( 2022-11-02)
    Abstract: Blood transfusions are common medical procedures and every age group requires detailed insights and treatment bundles. The aim of this study was to examine the association of anaemia, co-morbidities, complications, in-hospital mortality, and transfusion according to age groups to identify patient groups who are particularly at risk when undergoing surgery. Methods Data from 21 Hospitals of the Patient Blood Management Network Registry were analysed. Patients were divided into age subgroups. The incidence of preoperative anaemia, co-morbidities, surgical disciplines, hospital length of stay, complications, in-hospital mortality rate, and transfusions were analysed by descriptive and multivariate regression analysis. Results A total of 1 117 919 patients aged 18–108 years were included. With increasing age, the number of co-morbidities and incidence of preoperative anaemia increased. Complications, hospital length of stay, and in-hospital mortality increased with age and were higher in patients with preoperative anaemia. The mean number of transfused red blood cells (RBCs) peaked, whereas the transfusion rate increased continuously. Multivariate regression analysis showed that increasing age, co-morbidities, and preoperative anaemia were independent risk factors for complications, longer hospital length of stay, in-hospital mortality, and the need for RBC transfusion. Conclusion Increasing age, co-morbidities, and preoperative anaemia are independent risk factors for complications, longer hospital length of stay, in-hospital mortality, and the need for RBC transfusion. Anaemia diagnosis and treatment should be established in all patients.
    Type of Medium: Online Resource
    ISSN: 2474-9842
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2022
    detail.hit.zdb_id: 2902033-5
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  • 2
    In: Zeitschrift für Orthopädie und Unfallchirurgie, Georg Thieme Verlag KG, Vol. 158, No. 02 ( 2020-04), p. 194-200
    Abstract: Einleitung Präoperativ liegt bei etwa jedem 3. Patienten eine nicht therapierte Anämie vor, die wiederum im Kontext eines chirurgischen Eingriffs mit einem erhöhten Transfusionsbedarf von allogenen Erythrozytenkonzentraten (EK) sowie Komplikationen einhergeht. In der vorliegenden Arbeit soll die Prävalenz einer prä- und postoperativen Anämie und deren Einfluss auf den Transfusionsbedarf von EK, Krankenhausverweildauer sowie Krankenhaussterblichkeit in der primären Hüft- und Kniegelenkendoprothetik analysiert werden. Methoden Basierend auf einem anonymisierten Register wurden von Januar 2012 bis September 2018 378 069 erwachsene stationäre Patienten aus 13 deutschen Krankenhäusern analysiert, von denen n = 10 017 Patienten eine Hüft- und Kniegelenkprimärimplantation hatten. Der primäre Endpunkt war die Inzidenz einer präoperativen Anämie, die über den 1. präoperativ verfügbaren Hämoglobinwert entsprechend der WHO-Definition analysiert wurde. Zu den sekundären Endpunkten zählte die Krankenhausverweildauer, Anzahl Patienten mit EK-Transfusion, Inzidenz einer postoperativen krankenhauserworbenen Anämie, Anzahl verstorbener Patienten sowie verschiedene postoperative Komplikationen. Ergebnisse Die präoperative Anämierate betrug bei elektiver Kniegelenkendoprothetik 14,8%, bei elektiver Hüftgelenkendoprothetik 22,9% und bei Duokopfprothesenimplantation sogar 45,0%. Eine präoperative Anämie führte zu einer signifikant höheren EK-Transfusionsrate (Kniegelenkprothese: 8,3 vs. 1,8%; Hüftgelenksprothese: 34,5 vs. 8,1%; Duokopfprothese: 42,3 vs. 17,4%) sowie einem erhöhten EK-Verbrauch (Kniegelenk: 256 ± 107 vs. 29 ± 5 EK/1000 Patienten; Hüftgelenk: 929 ± 60 vs. 190 ± 16 EK/1000 Patienten; Duokopfprothese: 1411 ± 98 vs. 453 ± 42). Im Gesamtkollektiv war eine präoperative Anämie gegenüber nicht anämischen Patienten mit einer verlängerten Krankenhausverweildauer (12,0 [10,0; 17,0] d vs. 11,0 [9,0; 13,0] d; p  〈  0,001) sowie einer erhöhten Sterblichkeit assoziiert (5,5% [4,6 – 6,5%] vs. 0,9% [0,7% – 1,2%] ; Fisher p  〈  0,001). Bei Patienten mit einem Alter von 80 Jahren und höher war die Inzidenz einer präoperativen Anämie und damit die Transfusionsrate nahezu doppelt so hoch wie bei den unter 80-Jährigen. Zusammenfassung Eine präoperative Anämie kommt bei Knie- und Hüftgelenkprimärimplantation häufig vor und ist mit einem relevant erhöhten EK-Verbrauch assoziiert. Vor diesem Hintergrund könnte sich in der Zukunft vor allem in der elektiven orthopädischen Chirurgie ein relevantes Potenzial ergeben, im Sinne von Patient Blood Management die elektiven Patienten besser vorzubereiten, um unnötige Transfusionen zu vermeiden und so die wertvolle Ressource Blut zu schonen.
    Type of Medium: Online Resource
    ISSN: 1864-6697 , 1864-6743
    Language: English
    Publisher: Georg Thieme Verlag KG
    Publication Date: 2020
    detail.hit.zdb_id: 2280747-0
    detail.hit.zdb_id: 2304338-6
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  • 3
    In: Acta Neurochirurgica, Springer Science and Business Media LLC, Vol. 164, No. 4 ( 2022-04), p. 985-999
    Abstract: Anaemia is common in patients presenting with aneurysmal subarachnoid (aSAH) and intracerebral haemorrhage (ICH). In surgical patients, anaemia was identified as an idenpendent risk factor for postoperative mortality, prolonged hospital length of stay (LOS) and increased risk of red blood cell (RBC) transfusion. This multicentre cohort observation study describes the incidence and effects of preoperative anaemia in this critical patient collective for a 10-year period. Methods This multicentre observational study included adult in-hospital surgical patients diagnosed with aSAH or ICH of 21 German hospitals (discharged from 1 January 2010 to 30 September 2020). Descriptive, univariate and multivariate analyses were performed to investigate the incidence and association of preoperative anaemia with RBC transfusion, in-hospital mortality and postoperative complications in patients with aSAH and ICH. Results A total of n = 9081 patients were analysed (aSAH n = 5008; ICH n = 4073). Preoperative anaemia was present at 28.3% in aSAH and 40.9% in ICH. RBC transfusion rates were 29.9% in aSAH and 29.3% in ICH. Multivariate analysis revealed that preoperative anaemia is associated with a higher risk for RBC transfusion ( OR = 3.25 in aSAH, OR = 4.16 in ICH, p 〈 0.001), for in-hospital mortality ( OR = 1.48 in aSAH, OR = 1.53 in ICH, p 〈 0.001) and for several postoperative complications. Conclusions Preoperative anaemia is associated with increased RBC transfusion rates, in-hospital mortality and postoperative complications in patients with aSAH and ICH. Trial registration ClinicalTrials.gov , NCT02147795, https://clinicaltrials.gov/ct2/show/NCT02147795
    Type of Medium: Online Resource
    ISSN: 0942-0940
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2022
    detail.hit.zdb_id: 1464215-3
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  • 4
    In: BMC Public Health, Springer Science and Business Media LLC, Vol. 20, No. 1 ( 2020-12)
    Abstract: Significant long-term reduction in health-related quality of life (HRQoL) is often observed in survivors of the acute respiratory distress syndrome (ARDS), and return to work (RtW) is limited. There is a paucity of data regarding the relationship between the quality of care (QoC) in the intensive care unit (ICU) and both HRQoL and RtW in ARDS survivors. Therefore, the aim of our study was to investigate associations between indicators of QoC and HRQoL and RtW in a cohort of survivors of ARDS. Methods To determine the influence of QoC on HRQoL and RtW 1 year after ICU-discharge, ARDS patients were recruited into a prospective multi-centre patient cohort study and followed up regularly after discharge. Patients were asked to complete self-report questionnaires on HRQoL (Short Form 12 physical component scale (PCS) and mental component scale (MCS)) and RtW. Indicators of QoC pertaining to volume, structural and process quality, and general characteristics were recorded on ICU level. Associations between QoC indicators and HrQoL and RtW were investigated by multivariable linear and Cox regression modelling, respectively. B values and hazard ratios (HRs) are reported with corresponding 95% confidence intervals (CIs). Results 877 (of initially 1225 enrolled) people with ARDS formed the DACAPO survivor cohort, 396 were finally followed up to 1 year after discharge. The twelve-month survivors were characterized by a reduced HRQoL with a greater impairment in the physical component (Md 41.2 IQR [34–52]) compared to the mental component (Md 47.3 IQR [33–57] ). Overall, 50% of the patients returned to work. The proportion of ventilated ICU patients showed significant negative associations with both 12 months PCS (B = − 11.22, CI −20.71; − 1,74) and RtW (HR = 0,18, CI 0,04;0,80). All other QoC indicators were not significantly related to outcome. Conclusions Associations between ICU QoC and long-term HrQoL and RtW were weak and largely non-significant. Residual confounding by case mix, treatment variables before or during ICU stay and variables pertaining to the post intensive care period (e.g. rehabilitation) cannot be ruled out. Trial registration Clinicaltrials.govNCT02637011 . (December 22, 2015, retrospectively registered)
    Type of Medium: Online Resource
    ISSN: 1471-2458
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2020
    detail.hit.zdb_id: 2041338-5
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  • 5
    In: Annals of Intensive Care, Springer Science and Business Media LLC, Vol. 8, No. 1 ( 2018-12)
    Abstract: The acute respiratory distress syndrome (ARDS) is a life-threatening condition. In special situations, these critically ill patients must be transferred to specialized centers for escalating treatment. The aim of this study was to evaluate the quality of inter-hospital transport (IHT) of ARDS patients. Methods We evaluated medical and organizational aspects of structural and procedural quality relating to IHT of patients with ARDS in a prospective nationwide ARDS study. The qualification of emergency staff, the organizational aspects and the occurrence of critical events during transport were analyzed. Results Out of 1234 ARDS patients, 431 (34.9%) were transported, and 52 of these (12.1%) treated with extracorporeal membrane oxygenation. 63.1% of transferred patients were male, median age was 54 years, and 26.8% of patients were obese. All patients were mechanically ventilated during IHT. Pressure-controlled ventilation was the preferred mode (92.1%). Median duration to organize the IHT was 165 min. Median distance for IHT was 58 km, and median duration of IHT 60 min. Forty-two patient-related and 8 technology-related critical events (11.6%, 50 of 431 patients) were observed. When a critical event occurred, the PaO 2 /FiO 2 ratio before transport was significant lower (68 vs. 80 mmHg, p  = 0.017). 69.8% of physicians and 86.7% of paramedics confirmed all transfer qualifications according to requirements of the German faculty guidelines (DIVI). Conclusions The transport of critically ill patients is associated with potential risks. In our study the rate of patient- and technology-related critical events was relatively low. A severe ARDS with a PaO 2 /FiO 2 ratio  〈  70 mmHg seems to be a risk factor for the appearance of critical events during IHT. The majority of transport staff was well qualified. Time span for organization of IHT was relatively short. ECMO is an option to transport patients with a severe ARDS safely to specialized centers. Trial registration NCT02637011 (ClinicalTrials.gov, Registered 15 December 2015, retrospectively registered)
    Type of Medium: Online Resource
    ISSN: 2110-5820
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2018
    detail.hit.zdb_id: 2617094-2
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  • 6
    In: Annals of Intensive Care, Springer Science and Business Media LLC, Vol. 10, No. 1 ( 2020-12)
    Abstract: Acute respiratory distress syndrome (ARDS) is a life-threatening condition that often requires prolonged mechanical ventilation. Tracheostomy is a common procedure with some risks, on the other hand with potential advantages over orotracheal intubation in critically ill patients. This study investigated the association of tracheostomy with health-related quality of life (HRQoL), symptoms of psychiatric disorders and return-to-work of ARDS survivors. Methods Data were collected in the context of the prospective observational German-wide DACAPO study. Clinical and demographic patient data and treatment characteristics were obtained from the participating intensive care units (ICU). HRQoL and return-to-work were assessed using patient-reported questionnaires 3, 6 and 12 months after ICU discharge. HRQoL was measured with the Physical and Mental Component Scale of the Short-Form 12 Questionnaire (PCS-12, MCS-12). The prevalence of psychiatric symptoms (depression and post-traumatic stress disorder [PTSD]) was assessed using the Patient Health Questionnaire-9 and the Post-Traumatic Stress Syndrome-14. Physician-diagnosed anxiety and obsessive–compulsive disorder were recorded by patient self-report in the follow-up questionnaires. The associations of tracheostomy with HRQoL, psychiatric symptoms and return-to-work after 12 months were investigated by means of multivariable linear and logistic regression models. Results Primary 877 ARDS patients (mean ± standard deviation: 54 ± 16 years, 68% male) survived and were discharged from ICU. Out of these patients, 478 (54.5%) were tracheotomised during ICU treatment. After 12 months, patient-reported outcomes could be analysed of 388 (44.2%) respondents, 205 with tracheostomy and 183 without. One year after ICU discharge, tracheostomy showed no significant association with physical or mental health-related quality of life (PCS-12: − 0.73 [− 3.96, 2.51]; MCS-12: − 0.71 [− 4.92, 3.49] ), symptoms of psychiatric disorders (depression: 0.10 [− 1.43, 1.64]; PTSD: 3.31 [− 1.81, 8.43] ; anxiety: 1.26 [0.41, 3.86]; obsessive–compulsive disorder: 0.59 [0.05, 6.68] ) or return-to-work (0.71 [0.31, 1.64]) in the multivariable analysis (OR [95%-CI] ). Conclusions Up to 1 year after ICU discharge, neither HRQoL nor symptoms of psychiatric disorders nor return-to-work was affected by tracheostomy. Trial registration NCT02637011 (ClinicalTrials.gov, Registered 15 December 2015, retrospectively registered)
    Type of Medium: Online Resource
    ISSN: 2110-5820
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2020
    detail.hit.zdb_id: 2617094-2
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  • 7
    In: British Journal of Anaesthesia, Elsevier BV, Vol. 131, No. 3 ( 2023-09), p. 472-481
    Type of Medium: Online Resource
    ISSN: 0007-0912
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2023
    detail.hit.zdb_id: 2011968-9
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  • 8
    Online Resource
    Online Resource
    Ovid Technologies (Wolters Kluwer Health) ; 2006
    In:  Otology & Neurotology Vol. 27, No. 1 ( 2006-01), p. 117-123
    In: Otology & Neurotology, Ovid Technologies (Wolters Kluwer Health), Vol. 27, No. 1 ( 2006-01), p. 117-123
    Type of Medium: Online Resource
    ISSN: 1531-7129
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2006
    detail.hit.zdb_id: 2058738-7
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  • 9
    Online Resource
    Online Resource
    Ovid Technologies (Wolters Kluwer Health) ; 2005
    In:  Anesthesiology Vol. 103, No. 4 ( 2005-10-01), p. 796-804
    In: Anesthesiology, Ovid Technologies (Wolters Kluwer Health), Vol. 103, No. 4 ( 2005-10-01), p. 796-804
    Abstract: The transient outward current Ito is an important repolarizing K current in human ventricular myocardium mediated by Kv4.3 and KChIP2.2 subunits. Inhibition of Ito by amino-amide local anesthetics may be involved in severe cardiotoxic side effects. This study elucidates the molecular mechanisms of bupivacaine interaction with complexes formed by Kv4.3 and KChIP2.2 as well as the modulatory effect of KChIP2.2. For this purpose, the pharmacologic effects of bupivacaine on Kv4.3wt/KChIP2.2 channels and on the pore mutant Kv4.3V401I were investigated. Methods Kv4.3/KChIP2.2 cDNA was transiently expressed in Chinese hamster ovary cells. Site-directed mutagenesis and patch clamp experiments were performed to analyze the effects of bupivacaine on wild-type and mutant channels. Results Inhibition of Kv4.3wt/KChIP2.2 channels by bupivacaine was concentration-dependent and reversible. The IC50s for inhibition of the charge conducted by Kv4.3wt/KChIP2.2 channels by bupivacaine and levobupivacaine were 55 +/- 8 and 50 +/- 5 microm, respectively. The local anesthetic accelerated macroscopic current decline of Kv4.3wt/KChIP2.2 and slowed recovery from inactivation without altering steady state inactivation. KChIP2.2 altered the response of Kv4.3wt channels to bupivacaine and bupivacaine modulated KChIP2.2 effects on Kv4.3wt channels. The pore mutation V401I slowed macroscopic current decline of Kv4.3 channels and recovery from inactivation, and it diminished modulation of gating by KChIP2.2. Bupivacaine inhibition of Kv4.3V401I resembled Kv4.3wt and was not changed by coexpression of KChIP2.2. Conclusions These results indicate that bupivacaine blocks Kv4.3/KChIP2.2 channels from the open state. They furthermore give structural evidence that amino-amide local anesthetics interfere with the effects of KChIP2.2 on Kv4.3 by an indirect mechanism.
    Type of Medium: Online Resource
    ISSN: 0003-3022
    RVK:
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2005
    detail.hit.zdb_id: 2016092-6
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  • 10
    Online Resource
    Online Resource
    Ovid Technologies (Wolters Kluwer Health) ; 2006
    In:  Anesthesiology Vol. 105, No. 3 ( 2006-09-01), p. 511-520
    In: Anesthesiology, Ovid Technologies (Wolters Kluwer Health), Vol. 105, No. 3 ( 2006-09-01), p. 511-520
    Abstract: Anesthesia in patients with long QT syndrome (LQTS) is a matter of concern. Congenital LQTS is most frequently caused by mutations in KCNQ1 (Kv7.1), whereas drug-induced LQTS is a consequence of HERG (human ether-a-go-go-related gene) channel inhibition. The aim of this study was to investigate whether the LQT1 mutation A344V in the S6 region of KCNQ1, at a position corresponding to the local anesthetic binding site in HERG, may render drug insensitive KCNQ1 channels into a toxicologically relevant target of these pharmacologic agents. This may suggest that LQTS constitutes not only a nonspecific but also a specific pharmacogenetic risk factor for anesthesia. Methods The authors examined electrophysiologic and pharmacologic properties of wild-type and mutant KCNQ1 channels. The effects of bupivacaine, ropivacaine, and mepivacaine were investigated using two-electrode voltage clamp and whole cell patch clamp recordings. Results The mutation A344V induced voltage-dependent inactivation in homomeric KCNQ1 channels and shifted the voltage dependence of KCNQ1/KCNE1 channel activation by +30 mV. The mutation furthermore increased the sensitivity of KCNQ1/KCNE1 channels for bupivacaine 22-fold (KCNQ1wt/KCNE1: IC50 = 2,431 +/- 582 microM, n = 20; KCNQ1A344V/KCNE1: IC50 = 110 +/- 9 microM, n = 24). Pharmacologic effects of the mutant channels were dominant when mutant and wild-type channels were coexpressed. Simulation of cardiac action potentials with the Luo-Rudy model yielded a prolongation of the cardiac action potential duration and induction of early afterdepolarizations by the mutation A344V that were aggravated by local anesthetic intoxication. Conclusions The results indicate that certain forms of the LQTS may constitute a specific pharmacogenetic risk factor for regional anesthesia.
    Type of Medium: Online Resource
    ISSN: 0003-3022
    RVK:
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2006
    detail.hit.zdb_id: 2016092-6
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