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Gromann J, Mancino I, Manegold-Brauer G, Arlettaz R, Zimmermann R, Wellmann S, Burkhardt T. Inzidenz der neonatalen respiratorischen Morbidität nach Spontangeburt und Sectio caesarea bei late-preterm sowie termingeborenen Kindern. Geburtshilfe Frauenheilkd 2020. [DOI: 10.1055/s-0040-1717167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Affiliation(s)
- J Gromann
- Universitätsspital Zürich, Klinik für Geburtshilfe
| | | | | | - R Arlettaz
- Universitätsspital Zürich, Klinik für Neonatologie
| | - R Zimmermann
- Universitätsspital Zürich, Klinik für Geburtshilfe
| | - S Wellmann
- Klinik St. Hedwig, Universitätskinderklinik Regensburg (KUNO), Klinik für Neonatologie
| | - T Burkhardt
- Universitätsspital Zürich, Klinik für Geburtshilfe
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Haslinger C, Bamert H, Rauh M, Burkhardt T, Schäffer L. Effect of maternal smoking on stress physiology in healthy neonates. J Perinatol 2018; 38:132-136. [PMID: 29120451 DOI: 10.1038/jp.2017.172] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 08/18/2017] [Accepted: 09/21/2017] [Indexed: 01/07/2023]
Abstract
OBJECTIVE To assess the impact of maternal smoking during pregnancy (MSDP) on the neonatal hypothalamic-pituitary-adrenal axis. STUDY DESIGN In a prospective observational study, salivary cortisol and cortisone levels were measured at the fourth day of life during resting conditions and in response to a pain-induced stress event in healthy neonates whose mothers smoked cigarettes during each stage of pregnancy and compared with controls. RESULTS Neonates in the control group (n=70) exhibited a physiologic stress response with a significant increase in cortisol (1.3 to 2.1 ng ml-1; P<0.05) and cortisone (11.8 to 17.8 ng ml-1; P<0.05) from baseline levels, whereas in neonates from mothers who smoked (n=33), cortisol (0.9 to 0.8 ng ml-1; P=0.77) and cortisone (11.5 to 13.0; P=0.19) stress response was not significantly different from baseline levels. A two-way analysis of variance confirmed these findings in both groups. CONCLUSIONS Healthy neonates whose mothers smoked during pregnancy show a blunted stress response on the fourth day of life. Thus, MSDP leads to a dysregulation of the HPA axis with continued effects in neonatal life. This might explain long-term consequences of MSDP such as overweight, diabetes mellitus and modification of blood pressure control mechanisms in adult life.
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Affiliation(s)
- C Haslinger
- Division of Obstetrics, University Hospital of Zürich, Zürich, Switzerland
| | - H Bamert
- Division of Obstetrics, University Hospital of Zürich, Zürich, Switzerland
| | - M Rauh
- Division of Pediatrics, University Hospital of Erlangen, Erlangen, Germany
| | - T Burkhardt
- Division of Obstetrics, University Hospital of Zürich, Zürich, Switzerland
| | - L Schäffer
- Division of Obstetrics, Kantonsspital Baden, Baden, Switzerland
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Abstract
ZusammenfassungZiel: Überprüfung, ob durch eine bestimmte operative Technik die Rate der Krossenrezidive signifikant gesenkt werden kann. Methode: In eine prospektiv-randomisierte, farbduplex-kontrollierte Studie wurden 1389 Krossen (1054 Patienten) eingeschlossen, davon wurden 631 Patienten (766 Krossen) in den folgenden fünf Jahren nachuntersucht. Die Patienten wurden in drei Gruppen randomisiert. In der Kontrollgruppe (G1) wurden 607 radikale Krossektomien durchgeführt. In der Gruppe G2 wurde in 292 Fällen zusätzlich die Fascia cribrosa übernäht. In der Gruppe G3 (490 Krossen) wurde nach radikaler Krossektomie das Endothel des Stumpfes invertierend übernäht. Ergebnisse: Bei der Nachuntersuchung wurden vier Gruppen unterschieden: regelrechte postoperative Verhältnisse, Krossenrezidiv mit oder ohne klinischer Relevanz, verbliebener Stumpf. In G1 wurden 30/311 (9,6%), in G2 10/176 (5,7%) und in G3 26/279 (9,3%) Neovaskularisationen mit und ohne klinische Relevanz gefunden Schlussfolgerung: Die Studie zeigt, dass die Krossenrezidivrate durch Neoangiogenese nach korrekter Krossektomie durch die Einrichtung einer Barriere über dem Stumpfendothel nicht signifikant gesenkt wird.
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Dedes I, Schäffer L, Zimmermann R, Burkhardt T, Haslinger C. Outcome and risk factors of cesarean delivery with and without cesarean myomectomy in women with uterine myomatas. Arch Gynecol Obstet 2016; 295:27-32. [DOI: 10.1007/s00404-016-4177-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 08/09/2016] [Indexed: 10/21/2022]
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Nader S, Burkhardt T, Vettorazzi E, Milian M, Aberle J, Petersenn S, Flitsch J. Health-related Quality of Life in Patients After Treatment of Cushing's Disease. Exp Clin Endocrinol Diabetes 2016; 124:187-91. [PMID: 27008635 DOI: 10.1055/s-0035-1569340] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
BACKGROUND Patients suffering from Cushing's disease are known to be restricted due to a wide range of symptoms. Despite biochemical cure, symptoms might last life-long. These include - among well-known somatic symptoms - several neuropsychiatric symptoms that cannot be as easily tested, but lead to a serious negative impact on quality of life. We aimed to evaluate what factors diminish the self-perceived quality of life the most using 3 questionnaires visualizing those impairments. Furthermore we investigated whether there would be differences in quality of life between patients still being affected by the disease and those that are already in remission. PATIENTS AND METHODS We reviewed patient charts treated between April 2008 and June 2012 for Cushing's disease and sent 3 questionnaires to the patients for evaluation. For this purpose we used the SF-36, the BDI and the Tuebingen CD-25. 54 patients complied with our request and returned the completed questionnaires. The average time after surgery was 36 months. RESULTS In all 8 dimensions of the SF-36 significant differences between the patient collective and the expected age- and gender-specific scores could be observed and thus a detectable impairment in quality of life. The BDI revealed that every other patient suffering from Cushing's disease presented depressive symptoms, partially with clinical relevance. In all 6 dimensions of the Tuebingen CD-25 there were notable restrictions in patients. Those restrictions particularly concerned bodily restrictions and cognitive performance. The self-perceived quality of life of active patients was - although not statistically significant - in almost all measured fields worse than the test results of patients in remission after TSS. CONCLUSION Former and active Cushing's disease patients suffer from a wide range of neuropsychiatric symptoms. Those symptoms might dominate the clinical picture and lead to a serious impairment in quality of life as well as extend periods of suffering and might persist even years after being found healthy. Therefore it is important to evaluate quality of life as an independent factor in every patient being affected by Cushing's disease and to include a holistic view in their therapy. Concomitant therapeutic measures should be accessible at any time for Cushing's disease patients as the normalization of pathologically increased laboratory values doesn't obligatory lead to an improvement of the patients subjectively felt well-being.
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Affiliation(s)
- S Nader
- Department of Neurosurgery, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - T Burkhardt
- Department of Neurosurgery, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - E Vettorazzi
- Department of Medical Biometry and Epidemiology, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - M Milian
- Department of Neurosurgery, University Hospital Tuebingen, Tuebingen, Germany
| | - J Aberle
- Department for Endocrinology and Diabetology, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - S Petersenn
- ENDOC Center for Endocrine Tumors, Hamburg, Germany
| | - J Flitsch
- Department of Neurosurgery, University Hospital Hamburg-Eppendorf, Hamburg, Germany
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Burkhardt T, Koslowski A, Spanaus K, Zimmermann R, Wellmann S. Erhöhte fetale Stressmarker nach Oxytocinbelastungstest vor elektiver Sectio caesarea. Geburtshilfe Frauenheilkd 2016. [DOI: 10.1055/s-0035-1570043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Abstract
BACKGROUND Pituitary metastases are rare and commonly described in case reports or small case series. Due to its rarity this entity is not subject to standardized treatment guidelines, there is debate about typical initial symptoms that may lead to finding the correct diagnosis and information about the clinical course is also sparse. METHODS We have conducted a retrospective analysis of patients with pituitary metastases who were surgically treated via a transsphenoidal procedure at our institution between 2006 and 2014. Underlying primary disease, clinical and surgical course as well as adjuvant radiotherapy and follow-up data are presented. RESULTS 14 patients met the inclusion criteria (8 female, 6 male). Mean age was 61.5 years. Most patients became symptomatic with visual symptoms--both visual deterioration and/or diplopia (n = 13)--and anterior lobe insufficiency (n = 8). Surprisingly diabetes insipidus was only seen in three patients. All patients underwent transsphenoidal surgery initially, four patients had to undergo surgery for residual tumor or recurrence, two of them via a transcranial route. Breast cancer was the most common entity (n = 6), followed by prostate cancer (n = 3), nsclc (n = 2) and melanoma, thyroid cancer and renal cancer in one case each. Postoperative MRI showed gross total resection in four cases and residual disease in eight cases (subtotal resection, partial resection and biopsy), two patients files were incomplete regarding MRI-results. All patients underwent adjuvant radiotherapy. Survival after the initial diagnosis of cancer was 36 and 16 months after diagnosis of pituitary metastases. CONCLUSION Our results indicate that transsphenoidal surgery is a safe method to resect pituitary metastases and that the extend of resection does not have an influence on survival time. Our results also indicate that diabetes insipidus may not be the most common initial symptom of pituitary metastases and lack thereof should not lead to making a wrong diagnosis and delaying appropriate therapy.
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Affiliation(s)
- T Burkhardt
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany.
| | - M Henze
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - L A Kluth
- Department of Urology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - M Westphal
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - N O Schmidt
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - J Flitsch
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
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Burkhardt T, Koslowski A, Spanaus K, Zimmermann R, Wellmann S. Erhöhte fetale Stressmarker nach Oxytocinbelastungstest vor elektiver Sectio caesarea. Z Geburtshilfe Neonatol 2015. [DOI: 10.1055/s-0035-1566516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Schmid M, Klaritsch P, Arzt W, Burkhardt T, Duba HC, Häusler M, Hafner E, Lang U, Pertl B, Speicher M, Steiner H, Tercanli S, Merz E, Heling KS, Eiben B. Cell-Free DNA Testing for Fetal Chromosomal Anomalies in clinical practice: Austrian-German-Swiss Recommendations for non-invasive prenatal tests (NIPT). Ultraschall Med 2015; 36:507-510. [PMID: 26468773 DOI: 10.1055/s-0035-1553804] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- M Schmid
- Abteilung für Geburtshilfe und feto-maternale Medizin, Universitätsklinik für Frauenheilkunde Wien (Österreich)
| | - P Klaritsch
- Universitätsklinik für Frauenheilkunde und Geburtshilfe, Medizinische Universität Graz (Österreich)
| | - W Arzt
- Abteilung für Pränatalmedizin, Landesfrauen- und Kinderklinik Linz (Österreich)
| | - T Burkhardt
- Klinik für Geburtshilfe, Universitäts-Spital Zürich (Schweiz)
| | - H C Duba
- Zentrum Medizinische Genetik, Landes-Frauen- und Kinderklinik Linz (Österreich)
| | - M Häusler
- Universitätsklinik für Frauenheilkunde und Geburtshilfe, Medizinische Universität Graz (Österreich)
| | - E Hafner
- Geburtshilflich-Gynäkologische Abteilung, Sozialmedizinisches Zentrum Ost - Donauspital, Wien (Österreich)
| | - U Lang
- Universitätsklinik für Frauenheilkunde und Geburtshilfe, Medizinische Universität Graz (Österreich)
| | - B Pertl
- Pränatalzentrum, Privatklinik Graz-Ragnitz (Österreich)
| | - M Speicher
- Institut für Humangenetik, Universität Graz (Österreich)
| | - H Steiner
- Praxis für Pränatalmedizin, Praxis für Pränatalmedizin, Salzburg (Österreich)
| | - S Tercanli
- Ultraschall Freie-Strasse, Basel (Schweiz)
| | - E Merz
- Zentrum für Ultraschall und Pränatalmedizin; Frankfurt (Deutschland)
| | - K S Heling
- Praxis Friedrichstrasse für Pränataldiagnostik, Berlin (Deutschland)
| | - B Eiben
- Institut für Labormedizin und Klinische Genetik Rhein/ Ruhr, amedes Gruppe, Essen (Deutschland)
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Sauer N, Reining F, Schulze Zur Wiesch C, Burkhardt T, Aberle J. Off-label antiobesity treatment in patients without diabetes with GLP-1 agonists in clinical practice. Horm Metab Res 2015; 47:560-4. [PMID: 25230325 DOI: 10.1055/s-0034-1387793] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The aim of the work was to investigate whether continuation of treatment, side effects, and effect on weight loss of GLP-1 agonists in obese patients without diabetes are equally promising in daily clinical-practice-settings compared to controlled clinical trials. Obese patients without diabetes of our interdisciplinary obesity centre were treated off-label with GLP-1-agonists for different time periods. Application was started with low-dose and increased if side effects were tolerable. Monthly costs were € 125 for daily applications of 1.2 mg liraglutide or 10 μg exenatide twice daily. Data were obtained by telephone interviews about baseline characteristics, weight loss, sensation of satiation, duration of therapy, side effects, and reasons for discontinuation. Of 43 included cases (5 males, mean age 43±11 years, mean weight 107±24 kg, mean excess weight 35±21 kg) 7 were treated with exenatide and 36 with liraglutide. Excess weight loss in linear regression models was 6.7% per month (p <0.05) under control of age, sex, initial weight, and type of GLP-1 analogue treatment and did not significantly differ between liraglutide and exenatide. Overall, 58% of patients reported side effects mostly concerning the gastrointestinal tract. Surprisingly no patient reported vomiting. One patient developed a severe pancreatitis. At time of telephone interview only 30.2% were continuing treatment. Mean treatment duration was 2.98±2.71 months. Common reasons for discontinuation of treatment were no/little effect on weight loss (27.9%), intolerable side effects (20.9%), or financial reasons (14%). GLP-1 agonist treatment in obese patients without diabetes also correlates with significant weight loss in clinical practice. However, side effects and discontinuation of treatment are common. Therefore, long-term effect on weight loss might not be as promising as suggested by data from clinical trials.
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Affiliation(s)
- N Sauer
- Department for Endocrinology and Diabetology, University Hospital Hamburg Eppendorf (UKE), Hamburg, Germany
| | - F Reining
- Department for Endocrinology and Diabetology, University Hospital Hamburg Eppendorf (UKE), Hamburg, Germany
| | - C Schulze Zur Wiesch
- Department for Endocrinology and Diabetology, University Hospital Hamburg Eppendorf (UKE), Hamburg, Germany
| | - T Burkhardt
- Department for Neurosurgery, University Hospital Hamburg Eppendorf (UKE), Hamburg, Germany
| | - J Aberle
- Department for Endocrinology and Diabetology, University Hospital Hamburg Eppendorf (UKE), Hamburg, Germany
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Flitsch J, Schmid SM, Bernreuther C, Winterberg B, Ritter MM, Lehnert H, Burkhardt T. A pitfall in diagnosing Cushing's disease: ectopic ACTH-producing pituitary adenoma in the sphenoid sinus. Pituitary 2015; 18:279-82. [PMID: 25129688 DOI: 10.1007/s11102-014-0591-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
PURPOSE To show a rare case of Cushing's disease and possible cause of failed transsphenoidal surgery. METHOD We report on a 50-year-old woman suffering from ACTH-dependent Cushing's syndrome. Endocrinological work-up including low-dose/high-dose dexamethasone test (Liddle-test) and CRH test were clearly compatible with pituitary origin. Although an MRI showed no pituitary tumor, CRH-stimulated petrosal sinus sampling revealed a significant central-peripheral gradient in ACTH concentrations, rendering Cushing's disease very likely. The patient underwent transsphenoidal surgery with negative exploration of the pituitary gland. After intraoperative re-evaluation of the preoperative MRI, a "polyp" at the bottom of the sphenoid sinus was identified. The intraoperative microscopic aspect as well as instantaneous sections and cytology of a biopsy confirmed an adenoma, which was then removed. Histological analysis demonstrated an ACTH-producing pituitary adenoma adjacent to respiratory mucous membrane consisting of ciliated epithelium with submucous connective tissue. Postoperatively, ACTH concentrations were decreased and intermittent hydrocortisone substitution treatment was initiated. At the 3-month follow up, Cushing's stigmata were found to be alleviated and the hydrocortisone dosage could be reduced. CONCLUSION Ectopic pituitary adenoma tissue causing Cushing's disease is extremely rare but a potential cause for surgical failure or re-evaluation.
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Affiliation(s)
- J Flitsch
- Department of Neurosurgery, Bereich Hypophysenchirurgie, Neurochirurgische Klinik, University Medical Center Hamburg-Eppendorf (UKE), Martinistraße 52, 20246, Hamburg, Germany,
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Burkhardt T, Dimanski B, Karl R, Sievert U, Karl A, Hübler C, Tonn T, Sopvinik I, Ertl H, Moog R. Donor vigilance data of a blood transfusion service: A multicenter analysis. Transfus Apher Sci 2015; 53:180-4. [PMID: 26074050 DOI: 10.1016/j.transci.2015.03.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 03/10/2015] [Accepted: 03/13/2015] [Indexed: 11/28/2022]
Abstract
BACKGROUND Donor vigilance is an important part of the quality management system of blood transfusion services. The evaluation of donor side effects helps to improve the donation process and donor compliance. The aim of the present study was to evaluate donor vigilance data in whole blood and plasmapheresis donors of a blood donor service. MATERIALS AND METHODS Donors fulfilling current national and European eligibility criteria underwent whole blood and plasmapheresis donation (PCS and MCS+ (Haemonetics, Braintree, USA), A 200 (Fenwal, Round Lake, USA). Whole blood was collected at fixed and mobile sites while plasmaphereses were performed at 8 plasma centers. From 2011 to 2013 donor information was provided for gender, age, body weight, height, first and repeat donation. Donors were monitored for venipuncture and circulatory associated side effects. RESULTS The total incidences of adverse events were 5004 (0.56%) in repeat donors and 2111 (2.78%) in first time donors for whole blood donation and 3323 (1.01%) and 514 (7.96%) for plasmaphereses, respectively. Circulatory associated events were 2679 (0.30%) for whole blood donation and 1624 (0.49%) for plasmaphereses. CONCLUSION Our donor vigilance data of a blood transfusion service show that whole blood and plasmapheresis are safe with low incidences of adverse events. Repeat donation and age are predictors for low rates of adverse events. On the other hand, first time donation and female gender were associated with higher incidences of adverse events.
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Affiliation(s)
- T Burkhardt
- German Red Cross Blood Donor Service North-East, Institute Plauen, Germany
| | | | - R Karl
- Institute Berlin, Germany; Institute Potsdam, Germany
| | | | - A Karl
- German Red Cross Blood Donor Service North-East, Institute Plauen, Germany; Institute Chemnitz, Germany
| | | | - T Tonn
- Institute Dresden, Germany; Medical Faculty Carl Gustav Carus Technische Universitaet Dresden, Germany
| | | | - H Ertl
- German Red Cross Blood Donor Service North-East, Institute Plauen, Germany
| | - R Moog
- Institute Cottbus, Germany.
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Rotermund R, Burkhardt T, Rohani Z, Aberle J, Flitsch J. Is early repeat surgery a feasible concept for potential incomplete resection in acromegaly? Exp Clin Endocrinol Diabetes 2015. [DOI: 10.1055/s-0035-1547667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Jucker J, Burkhardt T, Kurmanavicius J, Zimmermann R. Maternales Serum-AFP im zweiten Trimenon und Schwangerschaftsoutcome. Geburtshilfe Frauenheilkd 2014. [DOI: 10.1055/s-0034-1388043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Hartmann R, Burkhardt T, Kurmanavicius J, Zimmermann R. Auswirkung einer strukturierten Dokumentation der Vakuumentbindung auf die Qualität einer vaginal-operativen Entbindung. Geburtshilfe Frauenheilkd 2014. [DOI: 10.1055/s-0034-1388147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Burkhardt T, Kurmanavicius J, Zimmermann R. Vergleich von fetalen mit neonatalen Normkurven für den Kopfumfang. Geburtshilfe Frauenheilkd 2014. [DOI: 10.1055/s-0034-1388585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Moog R, Karl R, Rothe R, Sopivnik I, Burkhardt T, Karl A, Tonn T. Validation of plasma reduced plateletpheresis concentrates: a multicentre analysis. Transfus Apher Sci 2014. [DOI: 10.1016/s1473-0502(14)50016-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Rotermund R, Lautenbach A, Burkhardt T, Schulze zur Wiesch C, Aberle J, Flitsch J. Is early repeat surgery a feasible concept for potential incomplete resection in acromegaly? Exp Clin Endocrinol Diabetes 2014. [DOI: 10.1055/s-0034-1372052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Sauer N, Pohl K, Schulze zur Wiesch C, Reining F, Burkhardt T, Flitsch J, Aberle J. Screening and Management of postoperative Hypoparathyreoidism induced Hypocalcemia in thyreoidectomiced patients on endocrine compared to surgical wards. Exp Clin Endocrinol Diabetes 2014. [DOI: 10.1055/s-0034-1372165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Janneck M, Burkhardt T, Rotermund R, Sauer N, Flitsch J, Aberle J. Hyponatremia after trans-sphenoidal surgery. MINERVA ENDOCRINOL 2014; 39:27-31. [PMID: 24513601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Fluid and electrolyte imbalances are the most frequent complications following pituitary surgery. Among the several patterns of occurrence, hyponatremia can occur in an isolated fashion or as part of a bi- or triphasic pattern. The frequency of hyponatremia after trans-sphenoidal surgery is between 2% and 25%, according to the literature. However, these numbers are probably underestimating the real prevalence, since mild hyponatremia does not lead to symptoms and measurement of sodium level. No association has been described between entity of the pituitary tumor or tumor size and hyponatremia. Therefore no predictors exist to determine patients with a higher risk for electrolyte imbalances after surgery. However, since delayed hyponatremia occurs mainly around the 8-10th day after surgery, routine measurement of sodium should be recommended on the day of hospital dismission. In case of a symptomatic hyponatremia, insufficiency of the corticotrophe pituitary function as the leading differential diagnosis needs to be ruled out. If the patient is euvoleme, pretest probability of syndrome of inadequate antidiuretic hormone production (SIADH) is very high and therapy may be started according to this. In case of SIADH, therapeutic options include fluid restriction or vaptane therapy. Only in severe cases infusion of hypertonic saline is appropriate. Usually SIADH following pituitary surgery is a self-limiting condition and will cease within 2-5 days.
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Affiliation(s)
- M Janneck
- Clinic for Nephrology Hamburg‑Eppendorf Clinical University Hamburg‑Eppendorf, Germany -
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Burkhardt T, Schmidt M, Kurmanavicius J, Zimmermann R, Schäffer L. Evaluation of fetal anthropometric measures to predict the risk for shoulder dystocia. Ultrasound Obstet Gynecol 2014; 43:77-82. [PMID: 23836579 DOI: 10.1002/uog.12560] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/27/2013] [Indexed: 06/02/2023]
Abstract
OBJECTIVE To evaluate the quality of anthropometric measures to improve the prediction of shoulder dystocia by combining different sonographic biometric parameters. METHODS This was a retrospective cohort study of 12,794 vaginal deliveries with complete sonographic biometry data obtained within 7 days before delivery. Receiver-operating characteristics (ROC) curves of various combinations of the biometric parameters, namely, biparietal diameter (BPD), occipitofrontal diameter (OFD), head circumference, abdominal diameter (AD), abdominal circumference (AC) and femur length were analyzed. The influences of independent risk factors were calculated and their combination used in a predictive model. RESULTS The incidence of shoulder dystocia was 1.14%. Different combinations of sonographic parameters showed comparable ROC curves without advantage for a particular combination. The difference between AD and BPD (AD - BPD) (area under the curve (AUC) = 0.704) revealed a significant increase in risk (odds ratio (OR) 7.6 (95% CI 4.2-13.9), sensitivity 8.2%, specificity 98.8%) at a suggested cut-off ≥ 2.6 cm. However, the positive predictive value (PPV) was low (7.5%). The AC as a single parameter (AUC = 0.732) with a cut-off ≥ 35 cm performed worse (OR 4.6 (95% CI 3.3-6.5), PPV 2.6%). BPD/OFD (a surrogate for fetal cranial shape) was not significantly different between those with and those without shoulder dystocia. The combination of estimated fetal weight, maternal diabetes, gender and AD - BPD provided a reasonable estimate of the individual risk. CONCLUSION Sonographic fetal anthropometric measures appear not to be a useful tool to screen for the risk of shoulder dystocia due to a low PPV. However, AD - BPD appears to be a relevant risk factor. While risk stratification including different known risk factors may aid in counseling, shoulder dystocia cannot effectively be predicted.
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Affiliation(s)
- T Burkhardt
- Department of Obstetrics and Gynecology, University Hospital of Zürich, Zürich, Switzerland
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Schäffer MK, Burkhardt T, Rauh M, Bucher HU, Fauchère JC, Schäffer L. Intrauterine Mangelversorgung führt zu einer dauerhaften Störung der Stressachse bei Säuglingen im Alter von 4 bis 6 Monaten. Z Geburtshilfe Neonatol 2013. [DOI: 10.1055/s-0033-1361339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Rotermund R, Burkhardt T, Westphal M, Flitsch J. A current series of surgically treated hormone-active microadenomas treated at a single center. Exp Clin Endocrinol Diabetes 2013. [DOI: 10.1055/s-0033-1336622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Pais I, Evans D, Burkhardt T, Rohani Z, Aberle J, Flitsch J. Occurrence of germline AIP mutations in a series of surgically treated sporadic pituitary tumors. Exp Clin Endocrinol Diabetes 2013. [DOI: 10.1055/s-0033-1336684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Burkhardt T, Schmidt NO, Vettorazzi E, Aberle J, Mengel M, Flitsch J. DHEA(S)--a novel marker in Cushing's disease. Acta Neurochir (Wien) 2013; 155:479-84; discussion 484. [PMID: 23314986 DOI: 10.1007/s00701-012-1596-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2012] [Accepted: 12/13/2012] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Dehydroepiandrosterone sulfate (DHEA(S)) is a multi-functional steroid implicated in a broad range of biological effects, including obesity, diabetes, bone metabolism, neuroprotection, and anti-tumorigenesis. It has not yet undergone wider research in the context of Cushing's disease. The objective of this study was to determine if perioperative blood levels of DHEA(S) correlate with levels of ACTH and cortisol, and therefore may be useful as a new, additional marker for the early definition of cure in patients suffering from Cushing's disease. METHODS Forty-two consecutive patients undergoing transsphenoidal surgery for Cushing's disease from September 2009 to September 2010 were perioperatively monitored for ACTH, cortisol, and DHEA(S). RESULTS Pre-operative blood samples revealed ACTH levels of median 65 ng/l (range 11-1,183 ng/l, standard deviation 183.76), cortisol of median 257 μg/l (range 93-803 μg/l, standard deviation 140.88), and DHEA(S) of median 2.22 mg/l (range 0.44-7.79 mg/l, standard deviation 1.82) according to the pathology of Cushing's disease. Postoperative blood samples drawn over a 7-day time span showed a drop in median ACTH to just 14.5 % (median: 9 ng/l, range 2-44, standard deviation 12.75) of its median preoperative figure. Median cortisol levels were reduced to 6.9 % (median: 18 μg/l, range 10-190 μg/l, standard deviation 38.04) of their preoperative values and DHEA(S) levels decreased to 17 % (median: 0.38 mg/l, range 0.05-2.29, standard deviation 0.51). In persistent disease, no patient showed a drop in DHEA(S) below 38 % of its preoperative figures. CONCLUSIONS DHEA(S) shows the potential to become an additional marker in the diagnosis and follow-up of patients. However, it needs to be examined further, including whether DHEA(S) may also be a useful predictor of recovery of the HPA-axis after successful surgery.
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Affiliation(s)
- T Burkhardt
- Department of Neurosurgery, Hamburg University Medical Center, Hamburg, Germany.
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Visca E, Voekt C, Tinner EM, Burkhardt T, Krafft A, Surbek D, von Felten S, Hoesli I. O720 METAL CUPS FOR VACUUM-ASSISTED VAGINAL DELIVERY INCREASE NEONATAL PAIN RESPONSE. Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)61150-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Hofmann W, Entezami M, Haug K, Blank C, Wüstemann M, Schulze B, Raabe-Meyer G, Hempel M, Freitag-Langer S, Schelling M, Ostermayer E, Burkhardt T, Zimmermann R, Beck M, Schleicher T, Kumar Y, Grömminger S, Stumm M. Klinische Studien zum nicht invasiven Nachweis der fetalen Trisomie 21 aus mütterlichem Blut. Z Geburtshilfe Neonatol 2012. [DOI: 10.1055/s-0032-1309105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Rheinschmitt L, Burkhardt T, Nagel JA, Beckert E, Gengenbach U, Bretthauer G. Investigation of the use of Solderjet Bumping for joining the thinwalled glass package of a complex mechatronic lens implant. BIOMED ENG-BIOMED TE 2012. [DOI: 10.1515/bmt-2012-4267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Balsyte D, Schäffer L, Burkhardt T, Wisser J, Krafft A, Kurmanavicius J. Continuous independent quality control for fetal nuchal translucency measurements provided by the cumulative summation technique. Ultraschall Med 2011; 32 Suppl 2:E141-E146. [PMID: 21877321 DOI: 10.1055/s-0031-1281669] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
PURPOSE The cumulative summation technique (CUSUM) is an innovative method for the quality control of nuchal translucency (NT) measurements. CUSUM allows immediate corrective intervention as soon as an unacceptable tendency is noted. The aim of this study was to implement an objective and dynamic quality control method based on the CUSUM technique for prompt analysis of fetal NT measurement which would be compatible with different standards in routine clinical practice. The findings were compared to the standard NT quality control methods currently in use. MATERIALS AND METHODS Three sets of fetal NT measurements performed by three experienced examiners (I, II and III) were selected for retrospective evaluation. One additional set of NT measurements performed by examiner IV was prospectively assessed to approve the practicability of the method. NT measurements were conducted according to the recommendations of Fetal Medical Foundation (FMF) Germany and London. NT values were converted to Z-scores. For quality and accuracy evaluation, data were fed into the Digisono CUSUM software to create double CUSUM charts of Z-scores. In addition, histograms were composed from the Z-scores of each set of measurements and plotted against a normal Gaussian distribution. RESULTS Three different patterns of retrospective performance and one set of NT measurements that was evaluated prospectively are presented. The full alignment of Z-scores using CUSUM curves reflected exact periods of under- and overestimation of NT measurements. The CUSUM chart of the prospective data set reveals that prompt corrective intervention of poor performance resulted in reconstitution of optimal results and provided sufficient control. In contrast, histograms of NT Z-scores only showed a minor positive or negative shift as compared to the expected values on the basis of Gaussian distribution, but could not identify poor performance. CONCLUSION Use of the CUSUM technique analysing the quality of sonographic NT measurements provides the possibility to prospectively observe the development of the examiner's skills, to maintain competence and to promptly define the time when inaccurate measurements start to occur.
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Affiliation(s)
- D Balsyte
- Frauenheilkunde, UniversitätsSpital Zürich, Zürich.
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Burkhardt T, Schwabe S, Bucher HU, Zimmermann R, Wellmann S. Copeptin – ein Marker für intrauterinen Stress bei Wachstumsretardierung. Z Geburtshilfe Neonatol 2011. [DOI: 10.1055/s-0031-1293276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Denzler A, Burkhardt T, Natalucci G, Das-Kundu S, Zimmermann R. Risikofaktoren periventrikulärer Leukomalazie. Z Geburtshilfe Neonatol 2011. [DOI: 10.1055/s-0031-1293240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Fasler T, Burkhardt T, Wisser J, Keller T, Kurmanavicius J. Senkt die Kombination von fetaler Biometrie und MRT-Pelvimetrie die Rate an sekundären Sectiones? Z Geburtshilfe Neonatol 2010; 214:68-73. [DOI: 10.1055/s-0030-1249613] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Balsyte D, Schäffer L, Burkhardt T, Wisser J, Zimmermann R, Kurmanavicius J. Continuous independent quality control for fetal ultrasound biometry provided by the cumulative summation technique. Ultrasound Obstet Gynecol 2010; 35:449-455. [PMID: 20052663 DOI: 10.1002/uog.7545] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVE To apply the cumulative summation (CUSUM) technique for an evaluation of the learning process of sonographic fetal weight estimation at term in combination with the z-scores of biometry determinants and to assess the time of appearance and sources of errors. METHODS Learning curve (LC-CUSUM) and double CUSUM charts for systematic error detection based on absolute and signed mean percentage error were generated to retrospectively estimate the longitudinal accuracy of sonographic fetal weight estimation conducted by three trainees and one experienced examiner. For LC-CUSUM analysis an examination was considered to be a failure when there was an absolute error in birth weight estimation >/= 15%. Fetal biometry measurements (head circumference, abdominal circumference (AC) and femur length (FL)) from 227 routine ultrasound scans of one examiner were separately transformed into z-scores and double CUSUM charts were generated to assess the systematic errors for each determinant. RESULTS The LC-CUSUM charts revealed that different numbers of scans are required for different examiners to achieve competence in estimating birth weight. AC and FL deviated most significantly from expected values (P < 0.05). The double CUSUM charts revealed exact periods of systematic errors in the measurement of biometry determinants, clearly reflecting errors of fetal weight estimation. CONCLUSIONS The use of CUSUM techniques in the analysis of sonographic data allows observation of the development of an examiner's skill and maintenance of competence. The CUSUM technique not only allows the reasons for impaired fetal weight estimation to be revealed but also allows determination of the exact time when inaccurate measurements start to occur. We suggest that CUSUM charts should be implemented in routine clinical practice as a measure of objective quality evaluation of sonographic fetal biometry.
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Affiliation(s)
- D Balsyte
- Department of Obstetrics, University Hospital of Zurich, Switzerland.
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Burkhardt T, Matter CM, Lohmann C, Zisch AH, Zimmermann R, Beinder E. Fetal programming der arteriellen Hypertonie: Intrauterine Wachstumsretardierung erhöht die Steifigkeit der Arteria umbilicalis bei einem verringerten IGF-I-Spiegel im Nabelschnurblut. Geburtshilfe Frauenheilkd 2009. [DOI: 10.1055/s-0029-1238934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Abstract
The objective of our cross-sectional, observational study was to investigate nifedipine serum levels in pregnant women undergoing tocolysis. A total of 24 pregnant women, 22-34 weeks' gestation, who were administered nifedipine for treatment of pre-term labour, were enrolled in the study. Blood samples were taken 12 h after the oral application of 60 mg nifedipine in 'continuous release' form (Adalat CR 60). Nifedipine serum levels were measured with liquid chromatography. Nifedipine serum levels spread between 6 and 101 ng/ml (17-292 nmol/l). There was no correlation between nifedipine levels and body mass index (BMI), or between nifedipine levels and gestational age. During nifedipine tocolysis, 11 of 24 patients (45.8%) had mild side-effects, mostly headache. The side-effects were not dose-related. Despite the standardised dosage and standardised blood sampling nifedipine serum levels spread in a wide range. There is no need to adjust the dose of nifedipine to BMI or to gestational age.
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Affiliation(s)
- T Zodan Marin
- Department of Frauenheilkunde, Klinik für Geburtshilfe, Universitäts Spital, Zürich, Switzerland.
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Schäffer L, Burkhardt T, Bamert H, Rauh M, Beinder E. Stress physiology in neonates after nicotine exposure during pregnancy. Z Geburtshilfe Neonatol 2009. [DOI: 10.1055/s-0029-1223023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Burkhardt T, Rauh M, Tomaske M, Leone A, Schäffer L. Cardiac autonomic balance in neonates after antenatal betamethasone administration. Z Geburtshilfe Neonatol 2009. [DOI: 10.1055/s-0029-1222832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Balsyte D, Schäffer L, Burkhardt T, Wisser J, Kurmanavicius J. Sonographic prediction of macrosomia cannot be improved by combination with pregnancy-specific characteristics. Ultrasound Obstet Gynecol 2009; 33:453-458. [PMID: 19266500 DOI: 10.1002/uog.6282] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
OBJECTIVE To evaluate the predictive value of a combination of sonographic, clinical and demographic data for detecting fetal macrosomia compared to ultrasound fetal weight estimation alone. METHODS Retrospective cohort data were obtained from 1062 pregnancies in an unselected population. Estimated fetal sonographic weight was obtained within the last week prior to delivery. Two different combination models-published by Mazouni et al. and Nahum and Stanislaw-were employed to predict the presence of macrosomia at birth in these infants. Receiver-operating characteristics (ROC) curves were generated to compare the prediction of macrosomia when using different observation methods and sensitivity, specificity, positive predictive value, negative predictive value (NPV) and accuracy were calculated. RESULTS Macrosomia (birth weight >or= 4000 g) was present in 135/1062 (12.7%) newborns. ROC curve analysis revealed the prediction of macrosomia using ultrasound alone to be significantly superior to the combined method of Mazouni et al. (area under the curve (AUC) 0.922, 95% CI 0.902-0.943 vs. 0.747, 95% CI 0.700-0.794, respectively; P < 0.0005), whereas the performance of the Nahum and Stanislaw equation was similar but not superior to ultrasound alone (AUC 0.895, 95% CI 0.839-0.950 vs. 0.912, 95% CI 0.867-0.958, respectively; P > 0.05). The accuracy of macrosomia prediction was similar for ultrasound alone and the Nahum and Stanislaw equation (approximately 90%), whereas the nomogram of Mazouni et al. reached only 51.7% accuracy (using a probability cut-off level of 50%). The NPV was found to be over 90% for all methods. CONCLUSIONS Combination of sonographic estimates with clinical and demographic variables does not improve the prediction of macrosomia at delivery in comparison with a routine ultrasound scan within a week before delivery, at least in unselected populations.
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Affiliation(s)
- D Balsyte
- Clinic of Obstetrics, Zurich University Hospital, Zurich, Switzerland
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Burkhardt T, Matter C, Lohmann C, Cai H, Lüscher T, Zisch A, Beinder E. Decreased Umbilical Artery Compliance and IGF-I Plasma Levels in Infants with Intrauterine Growth Restriction – Implications for Fetal Programming of Hypertension. Placenta 2009; 30:136-41. [DOI: 10.1016/j.placenta.2008.11.005] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2008] [Revised: 11/06/2008] [Accepted: 11/07/2008] [Indexed: 10/21/2022]
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Billmann MK, Burkhardt T, Kurmanavicius J, Beinder E. Maternales und neonatales Outcome von Schwangerschaften bei mütterlichem Alter von ≥ 40 Jahren. Geburtshilfe Frauenheilkd 2008. [DOI: 10.1055/s-0028-1088657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Schäffer L, Luzi F, Burkhardt T, Rauh M, Beinder E. Effect of antenatal betamethasone treatment on stress physiology in healthy neonates. Z Geburtshilfe Neonatol 2007. [DOI: 10.1055/s-2007-1002862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Silberschmidt AL, Kühn-Velten WN, Krähenmann F, Burkhardt T, Zimmermann R, Mandach UV. Nifedipine concentration in maternal and umbilical cord blood after nifedipine GITS tablets for tocolysis. Z Geburtshilfe Neonatol 2007. [DOI: 10.1055/s-2007-1002929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Burkhardt T, Schäffer L, Zimmermann R, Kurmanavicius J. Screening nach abnormem fetalem Wachstum im 3. Trimester–Ultraschall vs. Symphysen-Fundus-Abstand. Z Geburtshilfe Neonatol 2007. [DOI: 10.1055/s-2007-1003008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Schäffer L, Müller-Vincentini D, Burkhardt T, Rauh M, Beinder E. Stress response in neonates born small for gestational age. Geburtshilfe Frauenheilkd 2006. [DOI: 10.1055/s-2006-952739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Burkhardt T, Matter C, Zisch A, Beinder E. Mechanismen des Fetal Programming: Ist Elastin die Verbindung zwischen IUGR und einer Hypertension im Erwachsenenalter? Geburtshilfe Frauenheilkd 2006. [DOI: 10.1055/s-2006-952306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Burkhardt T, Matter C, Beinder E. Fetal Programming: Ist Elastin eine Verbindung zwischen fetaler IUGR und einer Hypertension im Erwachsenenalter? Z Geburtshilfe Neonatol 2005. [DOI: 10.1055/s-2005-923111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Kurmanavicius J, Burkhardt T, Zimmermann R. Computerbasierte Dokumentation in der Schwangerenvorsorge. Z Geburtshilfe Neonatol 2005. [DOI: 10.1055/s-2005-923198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Bencaiova G, Burkhardt T, Zimmermann R, Krafft A. Efficacy of rhEPO in anaemic pregnant woman with different heterozygous haemoglobinopathies. Z Geburtshilfe Neonatol 2005. [DOI: 10.1055/s-2005-923256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Bilic G, Hall H, Bittermann AG, Burkhardt T, Zammaretti P, Ochsenbein N, Zimmermann R. Study of human amnion cells outgrowth in three-dimensional Collagen I and Fibrin matrices for the treatment of PPROM. Z Geburtshilfe Neonatol 2005. [DOI: 10.1055/s-2005-923244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Schäffer L, Burkhardt T, Arlettaz R, Beinder E. The role of the sympathikus system in fetal programming. Z Geburtshilfe Neonatol 2005. [DOI: 10.1055/s-2005-923276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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