Zum Beitrag: Frühgeburtenrate in 6 Perinatalzentren in Baden-Württemberg – Potenzial zur Reduktion der Frühgeborenenzahl

Frühgeburtenrate in 6 Perinatalzentren in Baden-Württemberg – Potential zur Reduktion der Frühgeborenenzahl

Sehr geehrte Damen und Herren,

mit großem Interesse haben wir die Arbeit von Trotter et al. 1 gelesen und teilen die Auffassung, dass eine Vermeidung von Frühgeburten und eine Reduzierung der Frühgeburtenrate unbedingt anzustreben ist, wie dies auch vom Bundesgesundheitsministerium als Nationales Gesundheitsziel „Gesundheit rund um die Geburt” gefordert wird 2.

Qualitätssicherung mit Routinedaten bei Cholelithiasis – Veränderungen und aktueller Stand

Qualitätssicherung mit Routinedaten (QSR) ist ein relativ neues Verfahren zur Bewertung der Ergebnisqualität, das sich von der externen Qualitätssicherung und der Qualitätssicherung über Registerdaten im methodischen Ansatz unterscheidet. Seitens des Wissenschaftlichen Instituts der AOK (WIdO) wird QSR seit 2011 für den Bereich Cholelithiasis bei AOK-Patienten vorgehalten. Nach Einführung eines Expertenpanels im Jahr 2013 wurden zahlreiche Veränderungen vorgenommen, die die Indikatorraten für „Transfusion/Blutung“, „Sonstige Komplikationen“ sowie den Gesamtindikator verringert, aber die risikoadjustierten Qualitätsunterschiede zwischen Kliniken keineswegs aufgehoben haben.

Decision-to-Delivery Time and Perinatal Complications in Emergency Cesarean Section

BACKGROUND

A decision-to-delivery interval (DDI) of no more than 20 minutes has long been considered a requirement for cesarean sections, even though there have hardly been any studies on this topic. We retrospectively investigated data relevant to DDI for emergency cesarean sections performed for the most common indications, namely, suspected and documented fetal asphyxia.

METHODS

We analyzed data on emergency in-hospital cesarean sections in the period 2008-2015. Low 5- and 10-minute Apgar scores (a scheme with points awarded for breathing, heart rate, muscle tone, skin coloration, and the elicitability of reflexes) were the primary endpoints; acid-base status in arterial cord blood and in-hospital neonatal death were the secondary endpoints. The raw analysis was supplemented by an analysis adjusted for various factors including gestational age, maternal age, and obstetrical presentation.

RESULTS

Data from 39 291 neonates were included. The DDI was up to 10 minutes in 64.6% of cases, from 11 to 20 minutes in 34.3%, and over 20 minutes in 1.1%. Low Apgar scores were less common in children whose emergency cesarean sections were performed within 10 minutes or within 20 minutes. For example, the adjusted odds ratio for a 10-minute Apgar score below 4 was 0.49 (95% confidence interval [0.25; 0.96] when a DDI of more than 20 minutes was used as the reference criterion.

CONCLUSION

This is the largest population-based, risk-adjusted analysis to be carried out on this topic to date. It reveals, for the first time, an association between DDI of 20 minutes or less and the avoidance of outcomes that are dangerous to the child. As it is not possible to predict such obstetrical emergencies in advance, it seems reasonable to ensure the availability of caredelivery structures that make it possible for emergency cesarean sections to be performed within 20 minutes of the decision to do so.

DNVF-Memorandum III „Methoden für die Versorgungsforschung“, Teil 3: Methoden der Qualitäts- und Patientensicherheitsforschung

Das Deutsche Netzwerk Versorgungsforschung e.V. (DNVF) fördert seit Jahren die methodische Qualität von Versorgungsforschungsstudien auf der Basis von Memoranden und anderen Initiativen. Die Qualitäts- und Patientensicherheitsforschung (QPSF) gilt als Kerngebiet der Gesundheitsversorgungsforschung. Das vorliegende Memorandum erläutert wesentliche etablierte Fragestellungen und Methoden der QPSF. Vor dem Hintergrund der besonderen gesundheitspolitischen Bedeutung des Themas werden Methoden der Messgrößenentwicklung und -prüfung, die Risikoadjustierung, Methoden zur Erhebung von Patientensicherheitsdaten, Instrumente zur Analyse sicherheitsrelevanter Ereignisse und Methoden zur Evaluation der meist multiplen und komplexen QPSF-Interventionen behandelt. Zudem werden vordringliche Forschungsthemen benannt.

Case Numbers and Process Quality in Breast Surgery in Germany: A Retrospective Analysis of Over 150,000 Patients From 2013 to 2014

BACKGROUND

Numerous studies from around the world have shown a positive association between case numbers and the quality of medical care. The evidence to date suggests that conformity to guidelines for the treatment of patients with breast cancer is better in German hospitals that have higher case numbers.

METHODS

We used data obtained by an external program for quality assurance in inpatient care (externe stationäre Qualitätssicherung, esQS) for the years 2013 and 2014 to investigate seven process indicators in the area of breast surgery, including histologic confirmation of the diagnosis before definitive treatment, axillary dissection as recommended by the guidelines, and an appropriate temporal interval between diagnosis and operation. Case numbers were categorized with the aid of various threshold values. Moreover, subgroup analyses were carried out for patients under age 65, patients in good general health, patients without lymph-node involvement, and patients with a tumor size pT0 or pT1 or an overall tumor size less than 5 cm.

RESULTS

Data on 153,475 patients from 939 hospitals were analyzed. Six of seven indicators had values that were better overall, to a statistically significant extent, in hospitals with higher case numbers. Although this relationship was not consistently seen, the worst results were generally found in the category with the lowest case numbers. Similar though less striking results were obtained in the subgroup analyses. An exception to the general finding was that, in hospitals with higher case numbers, the interval between diagnosis and operation was more often longer than three weeks.

CONCLUSION

Guideline adherence is higher in hospitals that treat more cases. The present study does not address the question whether this, in turn, affects morbidity or mortality. To improve process quality in peripheral hospitals, the quality assurance program should be continued.

Common Femoral Artery — Uncommon Aneurysms

Background and Aims:

Femoral artery aneurysms are rare. Their natural history, tendency to embolize or rupture are not well known.

Material and Methods:

Data of all patients seen 1996–2002 with femoral artery aneurysms at the Swiss Cardiovascular Center were analysed. Nine patients with 13 aneurysms of the common femoral artery (CFA) were identified. Only true aneurysms with a diameter of at least 2.5 cm were included. All patients were male, mean age 70 years (range: 57–85 years). Four patients had bilateral femoral aneurysms. Risk factors included hypertension (9/9), smoking (7/9). One of the aneurysms was palpable in 5/9. Four patients were asymptomatic, 5 had Fontaine class II claudication. Five patients also had an aortic aneurysm (AAA), one a thoracic aneurysm; and 6/9 popliteal aneurysms. In all patients, diagnosis was confirmed with duplex scan. Angiography was performed preoperatively.

Results:

The aneurysms were operated on electively using aneurysm secclusion and interposition grafting. There were no significant perioperative complications. Median hospital stay was 8 days.

Conclusion:

CFA aneurysms are rare. They are palpable in nearly half of the cases. They rarely cause thrombotic or embolic complications, but are almost always connected to other aneurysms. Patients with CFA aneurysms should be screened with duplex scan. Operative therapy is straightforward, few complications can be expected. Postoperative follow-up with annual duplex scans is suggested.

Soluble and membrane-bound interleukin (IL)-15 Rα/IL-15 complexes mediate proliferation of high-avidity central memory CD8+ T cells for adoptive immunotherapy of cancer and infections

The lack of persistence of infused T cells is a principal limitation of adoptive immunotherapy in man. Interleukin (IL)-15 can sustain memory T cell expansion when presented in complex with IL-15Rα (15Rα/15). We developed a novel in-vitro system for generation of stable 15Rα/15 complexes. Immunologically quantifiable amounts of IL-15 were obtained when both IL-15Rα and IL-15 genes were co-transduced in NIH 3T3 fibroblast-based artificial antigen-presenting cells expressing human leucocyte antigen (HLA) A:0201, β₂ microglobulin, CD80, CD58 and CD54 [A2-artificial antigen presenting cell (AAPC)] and a murine pro-B cell line (Baf-3) (A2-AAPC^15Rα/15 and Baf-3^15Rα/15 ). Transduction of cells with IL-15 alone resulted in only transient expression of IL-15, with minimal amounts of immunologically detectable IL-15. In comparison, cells transduced with IL-15Rα alone (A2-AAPC^Rα ) demonstrated stable expression of IL-15Rα; however, when loaded with soluble IL-15 (sIL-15), these cells sequestered 15Rα/15 intracellularly and also demonstrated minimal amounts of IL-15. Human T cells stimulated in vitro against a viral antigen (CMVpp65) in the presence of 15Rα/15 generated superior yields of high-avidity CMVpp65 epitope-specific T cells [cytomegalovirus-cytotoxic T lymphocytes (CMV-CTLs)] responding to ≤ 10^{- 13} M peptide concentrations, and lysing targets cells at lower effector : target ratios (1 : 10 and 1 : 100), where sIL-15, sIL-2 or sIL-7 CMV-CTLs demonstrated minimal or no activity. Both soluble and surface presented 15Rα/15, but not sIL-15, sustained in-vitro expansion of CD62L⁺ and CCR7⁺ central memory phenotype CMV-CTLs (T_CM ). 15Rα/15 complexes represent a potent adjuvant for augmenting the efficacy of adoptive immunotherapy. Such cell-bound or soluble 15Rα/15 complexes could be developed for use in combination immunotherapy approaches.

Spontaneous Dissection of Common Iliac Artery

Spontaneous dissection of the iliac artery is very rare but known as a complication of highenergy traumatic injuries and has been reported in connection with pregnancy, collagen diseases, and alpha-1-antitrypsin deficiency. The authors report a 42-year-old man with an acute dissection of the common iliac artery during exercise. Groin pain and claudication were the early symptoms. Computerized angiotomography was diagnostic. Operative iliac artery reconstruction was performed. A prerelease control computed tomography examination showed a dissection of the distal aorta and left iliac artery. To their knowledge, the combination of the 2 dissections has not been previously published.

Fetal Monitoring of Patients Diagnosed with Systemic Lupus Erythematosus - A Case Report

We report a case of pathological foetal Doppler velocity, specifically the absence of end diastolic flow in the umbilical artery (AEDV/REDV), suspected diabetic pregnancy and mesangioproliferative glomerulonephritis, at 32 weeks of gestation. The foetal heart rate tracings were evaluated using a computerised cardiotocogram (Oxford Sonicaid system 8002 Chichester, England) 1 for 20-30 min parallel to the routine cardiotocogram. The ultrasound control at 33 weeks of gestation showed oligohydramnion, foetal centralisation and reduced interval foetal growth. Due to small gestational age (SGA) and oligohydramnion, labour was induced at 36 weeks gestation with vaginal prostaglandin and an amniotomy. Due to cephalopelvic disproportion, a Caesarean section was performed. Signs and symptoms of neonatal lupus were not found.

Mortality and Major Morbidity of Very-Low-Birth-Weight Infants in Germany 2008-2012: A Report Based on Administrative Data

BACKGROUND

Expectant parents of very preterm infants, physicians, and policy makers require estimates for chances of survival and survival without morbidity. Such estimates should derive from a large, reliable, and contemporary data base of easily available items known at birth.

OBJECTIVE

To determine short-term outcome and risk factors in very-low-birth-weight preterm infants based on administrative data.

METHODS

Anonymized routine data sets transmitted from hospital administrations to statutory health insurance companies were used to assess survival and survival free of major morbidities in a large cohort of preterm infants in Germany.

RESULTS

After exclusion of infants with lethal malformations, there were 13,147 infants with a birth weight below 1,500 g admitted to neonatal care 2008-2012, of whom 1,432 infants (10.9%) died within 180 days. Estimated 180 days survival probabilities were 0.632 (95% confidence interval 0.583-0.677) for infants with 250-499 g birth weight, 0.817 (0.799-0.834) for 500-749 g, 0.931 (0.920-0.940) for 750-999 g, 0.973 (0.967-0.979) for 1,000-1,249 g, and 0.985 (0.981-0.988) for 1,250-1,499 g. Estimated probabilities for survival without major morbidity (surgically treated intraventricular hemorrhage, necrotizing enterocolitis, intestinal perforation, or retinopathy) were 0.433 (0.384-0.481) for 250-499 g, 0.622 (0.600-0.643) for 500-749 g, 0.836 (0.821-0.849) for 750-999 g, 0.938 (0.928-0.946) for 1,000-1,249 g, and 0.969 (0.964-0.974) for 1,250-1,499 g, respectively. Prediction of survival and survival without major morbidities was moderately improved by adding sex, small for gestational age, and severe or moderate congenital malformation, increasing receiver operating characteristic areas under the curve from 0.839 (0.827-0.850) to 0.862 (0.852-0.874) (survival) and from 0.827 (0.822-0.842) to 0.852 (0.846-0.863) (survival without major morbidities), respectively.

CONCLUSION

The present analysis encourages attempts to use administrative data to investigate the association between risk factors and outcome in preterm infants.

Statistical controversies in clinical research: an initial evaluation of a surrogate end point using a single randomized clinical trial and the Prentice criteria

Surrogate end point research has grown in recent years with the increasing development and usage of biomarkers in clinical research. Surrogacy analysis is derived through randomized clinical trial data and it is carried out at the individual level and at the trial level. A common surrogate analysis at the individual level is the application of the Prentice criteria. An approach for the evaluation of the Prentice criteria is discussed, with a focus on its most difficult component, the determination of whether the treatment effect is captured by the surrogate. An interpretation of this criterion is illustrated using data from a randomized clinical trial in prostate cancer.

The prognostic significance of respiratory rate in patients with pneumonia: a retrospective analysis of data from 705,928 hospitalized patients in Germany from 2010-2012

BACKGROUND

Measurement of the respiratory rate is an important instrument for assessing the severity of acute disease. The respiratory rate is often not measured in routine practice because its clinical utility is inadequately appreciated. In Germany, documentation of the respiratory rate is obligatory when a patient with pneumonia is hospitalized. This fact has enabled us to study the prognostic significance of the respiratory rate in reference to a large medical database.

METHOD

We retrospectively analyzed data from the external quality-assurance program for community-acquired pneumonia for the years 2010-2012. All patients aged 18 years or older who were not mechanically ventilated on admission were included in the analysis. Logistic regression was used to determine the significance of the respiratory rate as a risk factor for in-hospital mortality.

RESULTS

705,928 patients were admitted to the hospital with community-acquired pneumonia (incidence: 3.5 cases per 1000 adults per year). The in-hospital mortality of these patients was 13.1% (92 227 persons). The plot of mortality as a function of respiratory rate on admission was U-shaped and slanted to the right, with the lowest mortality at a respiratory rate of 20/min on admission. If patients with a respiratory rate of 12-20/min are used as a baseline for comparison, patients with a respiratory rate of 27-33/min had an odds ratio (OR) of 1.72 for in-hospital death, and those with a respiratory rate above 33/min had an OR of 2.55. Further independent risk factors for in-hospital death were age, admission from a nursing home, hospital, or rehabilitation facility, chronic bedridden state, disorientation, systolic blood pressure, and pulse pressure.

CONCLUSION

Respiratory rate is an independent risk marker for in-hospital mortality in community-acquired pneumonia. It should be measured when patients are admitted to the hospital with pneumonia and other acute conditions.

[Quality measurement using administrative data in mandatory quality assurance]

For several years, the use of administrative data in mandatory quality measurement has been requested by several stakeholders in Germany. Main advantages of using administrative data include the reduction of documentary expenditures and the possibility to perform longitudinal quality analyses across different healthcare units. After a short introduction, a brief overview of the current use of administrative data for mandatory quality assurance as well as current developments is given, which will then be further exemplified by decubital ulcer prophylaxis. By using administrative data coding expenditures in this clinical area could be reduced by nine million data fields. At the same time the population analysed was expanded resulting in a more than tenfold increase in potentially quality-relevant events. Finally, perspectives, further developments, possibilities as well as limits of quality measurement with administrative data are discussed.

[Joint replacement quality index: the perspective of resident physicians]

BACKGROUND AND AIM

Joint replacement is an established therapy for arthrosis. The quality index for joint replacement (knee and hip) should include screening for quality of patient-centred care in hospitals providing replacements, on the basis of administrative data. The quality index summarizes 16 inpatient and posthospital complications (indicators). The aim of the study was to evaluate this quality index from the medical practitioner's viewpoint.

METHODS

Four semistructured focus groups with 11 family physicians and 8 orthopaedic/trauma surgeons were conducted. The discussions were recorded, transcribed and analysed qualitatively according to Mayring.

RESULTS

Infections and the revision of a total joint arthroplasty have been weighted as the most important indicators from the existing quality indicators. Between the participants some differences regarding the relevance of the indicators thrombosis and pulmonary embolism occurred. These indicators were weighted as more important by family physicians than orthopedic/trauma surgeons. For eight of the indicators, imprecision in words/meaning was criticized. In an open-ended second section, 20 new indicators within the areas complications, management and overall sector communication were identified.

CONCLUSION

Major amendments of the quality index for the joint replacement are necessary. The knowledge gained from this study may serve as a basis for this development.

Die Hydrolyse einiger Borsäureester unter Base-Einfluß in nichtwäßrigen Lösungsmitteln / The Hydrolysis of Some Tris(organyloxy)boranes under Alkaline Influence in Non-aqueous Solvents

The hydrolysis of tris(organyloxy)boranes (boric acid esters) in organic solvents in the presence of KOH leading to potassium polyborates (free from water of crystallization) is studied as to the influences of (a) the reaction medium (ethanol or ligroine/ethanol), (b) the concentration of water, (c) the organyl group of the boric acid ester (methyl, isopropyl, or phenyl), (d) the time of stay of the precipitated insoluble polyborates under the mother liquor (15 to 61850 s), and (e) the temperature during precipitation and the time of stay (—18 to + 60°C).

In the first stage of the reaction, during precipitation time, ester hydrolysis is followed by condensation, while aggregation and desorption processes occur between the time of precipitation and filtration.