30 results on '"Kumm K"'
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2. Profitability of organic and conventional dairy production with different dietary proportions of high-quality grass silage
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Patel, M., Wredle, E., Spörndly, E., Bertilsson, J., and Kumm, K.-I.
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- 2013
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3. Scenarios for future Swedish dairy farming in relation to sustainability of animal health, environment and economy
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Gunnarsson, S., primary, Sonesson, U., additional, Stenberg, M., additional, and Kumm, K-I., additional
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- 2009
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4. An Economic Analysis of Nitrogen Leaching Caused by Agricultural Activities
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Kumm, K. I.
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- 1976
5. Sustainable Development of Food Production: A Case Study on Scenarios for Pig Production
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Stern, S., Sonesson, U., Stefan Gunnarsson, Öborn, I., Kumm, K. -I, and Nybrant, T.
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Conservation of Natural Resources ,Meat ,Ecology ,Economics ,Swine ,Geography, Planning and Development ,Animals ,Environmental Chemistry ,General Medicine ,Breeding ,Environment ,Models, Theoretical ,Animal Welfare - Abstract
To study future, sustainable production systems, a step-wise method was used to create three future scenarios for pig production based on different sustainability goals. The first scenario focused on animal welfare and the natural behavior of the animals. The second targeted low impacts on the environment and the efficient use of natural resources. The third scenario aimed at product quality and safety. Each scenario fulfilled different aspects of sustainability, but there were goal conflicts because no scenario fulfilled all sustainability goals. The scenarios were then parameterized. The environmental impact was calculated using the life-cycle assessment (LCA) methodology, and the economic cost was calculated from the same data set. The cost per kilo of pork was highest for the animal welfare scenario and similar for the other two scenarios. The environmental scenario had the lowest environmental impact, and the product-quality scenario the highest. The results are discussed based on different future priorities.
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- 2005
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6. Profitability of organic and conventional dairy production with different dietary proportions of high-quality grass silage
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Løes, Anne-Kristin, Askegaard, Margrethe, Langer, Vibeke, Partanen, Kirsi, Pehme, Sirli, Rasmussen, Ilse A., Salomon, Eva, Sørensen, Peter, Ullvén, Karin, Wivstad, Maria, Patel, M., Wredle, E., Spörndly, E., Bertilsson, J., Kumm, K.-I., Løes, Anne-Kristin, Askegaard, Margrethe, Langer, Vibeke, Partanen, Kirsi, Pehme, Sirli, Rasmussen, Ilse A., Salomon, Eva, Sørensen, Peter, Ullvén, Karin, Wivstad, Maria, Patel, M., Wredle, E., Spörndly, E., Bertilsson, J., and Kumm, K.-I.
- Abstract
Profitability in milk production was calculated using diets with three different proportions of high-quality grass silage. The treatments consisted of the same feeds, but differed in the dietary proportion of forage: low (L), medium (M) and high (H), representing one conventional and two organic diets. The calculations were based on results in feed intake and milk production from a large dairy cow experiment. In the calculations, three different districts with different conditions for farming were used as models, and calculations were performed on two different herd sizes. In addition, current financial supports were both included and excluded in the calculations. The results showed only minor differences in profitability between using in average 60% or 70% of dry matter (DM) of silage in diets used in organic production. In conventional production, it was profitable to increase the average dietary proportion of silage from 50% to 60% of DM when the prices of concentrate and grains were as high as at the present. The results showed clear economic benefits of increasing the proportion of high-quality silage in conventional Scandinavian dairy cow diets up to levels similar to the standards of the organic production system.
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- 2013
7. The Subsistence Fund and the Reproduction of Labor Power.
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Kumm, K.
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When we study the sources of expenditures on the reproduction of labor power, we find expenditures from the family budget and the state budget. The magnitude and structure of these expenditures can be determined in various ways: the corresponding items of expenditure in the state budget are known, representative budget studies can be made to ascertain family expenditures, and the size of the consumption fund in national income can be calculated. All this information makes it possible to determine the kind of resources and the quantities of these resources that are used for the reproduction of labor power in socialist society. But this is only the prerequisite to the more extensive examination of the problem and to the determination of the magnitude of the necessary product. This requires the resolution of a number of theoretical problems. Among them in particular is the following: Is it appropriate to single out the subsistence fund, which is formed from the producers' necessary product, as an independent economic category? If we agree with those authors who maintain that the necessary product under socialism is produced directly as the consumption fund' or with the premise that the latter takes the specific form of wages and social consumption funds, we will have to admit that there is no place in socialist economic theory for the "subsistence fund" category. [ABSTRACT FROM AUTHOR]
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- 1984
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8. The Subsistence Fund and the Reproduction of Labor Power
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Kumm, K., primary
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- 1984
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9. Statistical propagation models for the mobile user objective system (MUOS)
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Dresp, M.R., primary, Kullstam, P.A., additional, and Kumm, K., additional
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10. Statistical propagation models for the mobile user objective system (MUOS).
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Dresp, M.R., Kullstam, P.A., and Kumm, K.
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- 2002
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11. Readmission Outcomes in Kidney Transplant Recipients With and Without Delayed Graft Function.
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Punukollu R, Nica A, Ohara S, Kumm K, Frasco PE, Budhiraja P, Mathur A, Heilman R, and Jadlowiec CC
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- Humans, Retrospective Studies, Male, Female, Middle Aged, Adult, Arizona epidemiology, Graft Survival, Risk Factors, Length of Stay, Treatment Outcome, Kidney Transplantation, Patient Readmission statistics & numerical data, Delayed Graft Function etiology
- Abstract
Background: Delayed graft function (DGF) is a common post-transplant event associated with increased resource utilization. As a center with experience in DGF, we aimed to assess differences in readmissions and post-transplant outcomes between patients with and without DGF., Methods: This was a retrospective review of deceased donor kidney transplant recipients at Mayo Clinic Arizona between 2015 and 2020. Recipients with at least one early readmission following kidney transplantation were included in the study. Two groups were identified: (1) recipients with DGF who required early readmission and (2) recipients without DGF who required early readmission., Results: Among recipients with DGF, 43.9% (n = 405) required early readmission compared to 29.1% (n = 179) without DGF (P < .0001). There were no differences in the initial hospital length of stay (P = .08), and most recipients in both groups only required a single readmission (61.7% vs 72.1%, P = .02). Recipients with DGF were more likely to have ≥2 readmissions (P = .02) and a higher total readmission rate (P = .006). Recipients with DGF who required readmission also required more outpatient clinic visits (P = .003). When comparing recipients with and without DGF who required readmission, there were no differences in patient (P = .22) or death-censored (P = .72) graft survival. When comparing patients with and without DGF requiring one versus ≥2 readmissions, there were no differences in patient survival (P = .15), however patients with DGF and ≥2 readmissions had lower death-censored graft survival (P = .001)., Conclusions: Recipients with DGF are at increased risk of readmission. Transplant center-level changes to reduce readmissions and infections could have an important impact on DGF outcomes., Competing Interests: Declaration of competing interest The authors report no proprietary or commercial interest in any product mentioned or concept discussed in this article., (Copyright © 2024 Elsevier Inc. All rights reserved.)
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- 2024
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12. Donation After Circulatory Death Liver Transplantation: Early Challenges, Clinical Improvement, and Future Directions.
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Ruch B, Kumm K, Arias S, Katariya NN, and Mathur AK
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- Humans, Tissue Donors, Liver, Graft Survival, Death, Liver Transplantation, Tissue and Organ Procurement
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Donation after circulatory death (DCD) liver allografts remain a widely underutilized source of donor organs for transplantation. Although initially linked with inferior outcomes, DCD liver transplant can achieve excellent patient and graft survival with suitable matching of donor and recipient characteristics, rapid donor recovery and precise donor assessment, and appropriate perioperative management. The advent of clinical liver perfusion modalities promises to redefine the viability parameters for DCD liver allografts and hopefully will encourage more widespread usage of this growing source of donor livers., (Copyright © 2023 Elsevier Inc. All rights reserved.)
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- 2024
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13. Duration of Dialysis in Acute Kidney Injury Donors and Transplant Outcomes.
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Punukollu R, Ohara SY, Budhiraja P, Smith ML, Kumm K, Ruch B, Misra S, Reddy KS, Heilman RL, and Jadlowiec CC
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- Humans, Delayed Graft Function etiology, Delayed Graft Function epidemiology, Renal Dialysis, Tissue Donors, Graft Survival, Kidney, Retrospective Studies, Kidney Transplantation, Acute Kidney Injury etiology, Acute Kidney Injury therapy
- Abstract
Background: Acute kidney injury (AKI) kidneys, including those from donors on dialysis, are often underutilized, although there is increasing data available demonstrating good transplant outcomes. To date, data on the duration of donor dialysis and transplant outcomes are limited., Study Design: This was a single-center study of deceased donor kidney transplants from 2010 to 2022. The study cohort consisted of recipients of deceased donor kidney transplants from donors with AKI and on dialysis. Three groups were identified based on the predetermined interquartile range of donor dialysis duration: 1 to 2 dialysis days, 3 to 4 dialysis days, and 5 or more dialysis days., Results: During this period, 765 AKI deceased donor transplants were performed, of which 230 were from donors on dialysis. The median dialysis duration was 2 days with a maximum of 13 days. Across the 3 groups, there were no differences in recipient age (p = 0.23) or dialysis vintage (p = 0.70). Donor age (p = 0.86) and kidney donor profile index (p = 0.57) were comparable between the groups. Recipients of deceased donor kidney transplants from donors on dialysis 5 or more days had lower terminal creatinine levels (p = 0.003) and longer cold ischemia times (p = 0.04). Posttransplant, the median length of hospital stay was 3 days for all groups (p = 0.75). There were no differences in delayed graft function occurrence (94.4% vs 86.8% vs 92.1%, p = 0.19), duration of delayed graft function (p = 0.56), or readmissions (p = 0.99). At 1 year posttransplant, the estimated glomerular filtration rate (p = 0.76), patient survival (p = 0.82), or death-censored graft survival (p = 0.28) were comparable., Conclusions: Excellent outcomes have been observed in AKI deceased donor kidney transplants, including those coming from donors on dialysis. In this small cohort, the duration of donor dialysis did not adversely affect outcomes. Cautious expansion of the donor pool, including donors on dialysis, should be considered given the ongoing organ shortage., (Copyright © 2023 by the American College of Surgeons. Published by Wolters Kluwer Health, Inc. All rights reserved.)
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- 2024
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14. Outcomes with transplanting kidneys offered through expedited allocation.
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Jadlowiec CC, Ohara SY, Punukollu R, Wagler J, Ruch B, Kumm K, Budhiraja P, Me HM, Mathur AK, Reddy KS, Khamash H, and Heilman R
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- Humans, Graft Survival, Kidney, Tissue Donors, Tissue and Organ Procurement, Kidney Transplantation, Acute Kidney Injury
- Abstract
Introduction: Expedited out-of-sequence deceased donor kidney allocation is a strategy to avoid discards after early placement attempts have been unsuccessful. Our study aimed to assess outcomes and characteristics of these transplanted kidneys., Methods: KDPI matching was performed between expedited allocation (EA) and standard allocation (SA) deceased donor kidney transplants performed at our center., Results: Between 2018 and 2021, there were 225 EA offers, and 189 (84%) were transplanted. EA recipients were older (p = .007) and had shorter dialysis vintage (p < .0001). EA kidneys were likely to be nationally allocated (p < .001), have AKI (p < .0001) and longer CIT (p < .0001). There were no differences in EA and SA time-zero kidney biopsies (ci, p = .07; ct, p = .89; cv, p = .95; ah, p = .79). EA kidneys had more DGF (p = .0006), but there were no differences in DGF duration (p = .83), hospital length of stay (p = .43), 1- and 2-year eGFR (p = .16, p = .99), patient (p = .34), or death-censored graft (p = .66) survival., Conclusion: During this study period, our center transplanted 189 kidneys through EA following local-regional declines. These kidneys often came from AKI donors and had more DGF but had similar outcomes to KDPI-matched SA kidneys. Although it has been suggested that EA has the potential to worsen transplant disparities, transplant center level decisions on organ acceptance contribute to these variations., (© 2023 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.)
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- 2023
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15. Past, Current, and Future Perspectives on Transplanting Acute Kidney Injury Kidneys.
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Punukollu R, Ryan M, Misra S, Budhiraja P, Ohara S, Kumm K, Guerra G, Reddy KS, Heilman R, and Jadlowiec CC
- Abstract
(1) Background: Acute kidney injury (AKI) kidneys have high non-utilization rates due to concerns regarding unfavorable outcomes. In this paper, we aimed to review the past, present, and future opinions on AKI kidneys. (2) Methods: A PubMed search was conducted for topics relevant to AKI kidney transplantation. (3) Results: Current short- and long-term data on AKI kidneys have demonstrated good outcomes including favorable graft function and survival. The role of procurement biopsies is controversial, but they have been shown to be beneficial in AKI kidneys by allowing clinicians to differentiate between reversible tubular injury and irreversible cortical necrosis. Machine perfusion has also been applied to AKI kidneys and has been shown to reduce delayed graft function (DGF). The incidence of DGF increases with AKI severity and its management can be challenging. Strategies employed to counteract this have included early initiation of dialysis after kidney transplantation, early targeting of adequate immunosuppression levels to minimize rejection risk, and establishment of outpatient dialysis. (4) Conclusions: Despite good outcomes, there continue to be barriers that impact AKI kidney utilization. Successful strategies have included use of procurement biopsies or machine perfusion and expectant management of DGF. With increasing experience, better use of AKI kidneys can result in additional opportunities to expand the donor pool.
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- 2023
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16. Declining Medicare reimbursement in abdominal transplantation from 2000 to 2021.
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Hydrick TC, Zhang C, Ruch B, Wagler J, Kumm K, Harbell JW, Hewitt WR, Jadlowiec CC, Katariya NN, Moss AA, Nguyen MC, Reddy KS, Singer AL, and Mathur AK
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- Aged, Humans, United States, Insurance, Health, Reimbursement, Medicare, Plastic Surgery Procedures
- Abstract
Background: The Centers for Medicare and Medicaid Services is a major payer for abdominal transplant services. Reimbursement reductions could have a major impact on the transplant surgical workforce and hospitals. Yet government reimbursement trends in abdominal transplantation have not been fully characterized., Methods: We performed an economic analysis to characterize changes in inflation-adjusted trends in Medicare surgical reimbursement for abdominal transplant procedures. Using the Medicare Fee Schedule Look-Up Tool, we performed a procedure code-based surgical reimbursement rate analysis. Reimbursement rates were adjusted for inflation to calculate overall changes in reimbursement, overall year-over-year, 5-year year-over-year, and compound annual growth rate from 2000 to 2021., Results: We observed declines in adjusted reimbursement of common abdominal transplant procedures, including liver (-32.4%), kidney with and without nephrectomy (-24.2% and -24.1%, respectively), and pancreas transplant (-15.2%) (all, P < .05). Overall, the yearly average change for liver, kidney with and without nephrectomy, and pancreas transplant were -1.54%, -1.15%, -1.15%, and -0.72%. Five-year annual change averaged -2.69%, -2.35%, -2.64%, and -2.43%, respectively. The overall average compound annual growth rate was -1.27%., Conclusion: This analysis depicts a worrisome reimbursement pattern for abdominal transplant procedures. Transplant surgeons, centers, and professional organizations should note these trends to advocate sustainable reimbursement policy and to preserve continued access to transplant services., (Copyright © 2023. Published by Elsevier Inc.)
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- 2023
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17. Hepatocellular Carcinoma, Alpha Fetoprotein, and Liver Allocation for Transplantation: Past, Present and Future.
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Ruch B, Wagler J, Kumm K, Zhang C, Katariya NN, Garcia-Saenz-de-Sicilia M, Giorgakis E, and Mathur AK
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- Humans, alpha-Fetoproteins, Neoplasm Recurrence, Local, Biomarkers, Carcinoma, Hepatocellular surgery, Liver Transplantation, Liver Neoplasms surgery
- Abstract
Hepatocellular carcinoma (HCC) is one of the leading indications for liver transplantation and has been the treatment of choice due to the oncologic benefit for patients with advanced chronic liver disease (AdvCLD) and small tumors for the last 25 years. For HCC patients undergoing liver transplantation, alpha fetoprotein (AFP) has increasingly been applied as an independent predictor for overall survival, disease free recurrence, and waitlist drop out. In addition to static AFP, newer studies evaluating the AFP dynamic response to downstaging therapy show enhanced prognostication compared to static AFP alone. While AFP has been utilized to select HCC patients for transplant, despite years of allocation policy changes, the US allocation system continues to take a uniform approach to HCC patients, without discriminating between those with favorable or unfavorable tumor biology. We aim to review the history of liver allocation for HCC in the US, the utility of AFP in liver transplantation, the implications of weaving AFP as a biomarker into policy. Based on this review, we encourage the US transplant community to revisit its HCC organ allocation model, to incorporate more precise oncologic principles for patient selection, and to adopt AFP dynamics to better stratify waitlist dropout risk.
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- 2022
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18. Monoclonal antibody treatment for COVID-19 in solid organ transplant recipients.
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Sarrell BA, Bloch K, El Chediak A, Kumm K, Tracy K, Forbes RC, Langone A, Thomas L, Schlendorf K, Trindade AJ, Perri R, Wright P, and Concepcion BP
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- Adult, Antibodies, Monoclonal adverse effects, Antibodies, Monoclonal, Humanized, Antibodies, Neutralizing, Humans, Middle Aged, SARS-CoV-2, Spike Glycoprotein, Coronavirus, Transplant Recipients, COVID-19, Organ Transplantation adverse effects
- Abstract
Solid organ transplant (SOT) recipients are at high risk for severe coronavirus disease 2019 (COVID-19). Studies suggest that early intervention with monoclonal antibody (MAB) treatment directed against the SARS-CoV-2 spike protein may reduce the risk of emergency department visits or hospitalization for COVID-19, especially in high-risk patients. Herein, we describe our single-center experience of 93 SOT (50 kidney, 17 liver, 11 lung, nine heart, and six dual-organ) recipients with mild to moderate COVID-19 who were treated with bamlanivimab or casirivimab-imdevimab per emergency use authorization guidelines. Median age of recipients was 55 [(Interquartile range) 44-63] years, and 41% were diabetic. Median time from transplant to MAB was 64 (IQR 24-122) months and median time from the onset of COVID-19 symptoms to the infusion was 6 (IQR 4-7) days. All patients had a minimum 30 days of study follow-up. The 30-day hospitalization rate for COVID-19-directed therapy was 8.7%. Infusion-related adverse events were rare and generally mild. Biopsy-proven organ rejection occurred in two patients, and there were no graft losses or deaths. A comparator group of 72 SOT recipients diagnosed with COVID-19 who were eligible but did not receive MAB treatment had a higher 30-day hospitalization rate for COVID-19-directed therapy (15.3%), although this difference was not statistically significant, after adjustment for age (Odds Ratio 0.49 [95% Confidence Interval 0.18-1.32], p = 0.16). Our experience suggests that MAB treatment, with respect to the available MAB formulations and circulating viral variants present during our study period, may provide favorable outcomes for mild to moderate COVID-19 in SOT recipients., (© 2021 Wiley Periodicals LLC.)
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- 2022
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19. Universal characteristics of evolution and development are inherent in fetal autonomic brain maturation.
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Schmidt A, Schukat-Talamazzini EG, Zöllkau J, Pytlik A, Leibl S, Kumm K, Bode F, Kynass I, Witte OW, Schleussner E, Schneider U, and Hoyer D
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- Female, Fetus embryology, Gestational Age, Heart Rate physiology, Humans, Pregnancy, Autonomic Nervous System growth & development, Brain growth & development, Fetal Development physiology, Heart Rate, Fetal physiology, Prenatal Care
- Abstract
Adverse prenatal environmental influences to the developing fetus are associated with mental and cardiovascular disease in later life. Universal developmental characteristics such as self-organization, pattern formation, and adaptation in the growing information processing system have not yet been sufficiently analyzed with respect to description of normal fetal development and identification of developmental disturbances. Fetal heart rate patterns are the only non-invasive order parameter of the developing autonomic brain available with respect to the developing complex organ system. The objective of the present study was to investigate whether universal indices, known from evolution and phylogeny, describe the ontogenetic fetal development from 20 weeks of gestation onwards. By means of a 10-fold cross-validated data-driven multivariate regression modeling procedure, relevant indices of heart rate variability (HRV) were explored using 552 fetal heart rate recordings, each lasting over 30 min. We found that models which included HRV indices of increasing fluctuation amplitude, complexity and fractal long-range dependencies largely estimated the maturation age (coefficients of determination 0.61-0.66). Consideration of these characteristics in prenatal care may not only have implications for early identification of developmental disturbances, but also for the development of system-theory-based therapeutic strategies., (Copyright © 2018 Elsevier B.V. All rights reserved.)
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- 2018
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20. Mending a Broken Heart: Treatment of Stress-Induced Heart Failure after Solid Organ Transplantation.
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Galván NT, Kumm K, Kueht M, Ha CP, Yoeli D, Cotton RT, Rana A, O'Mahony CA, Halff G, and Goss JA
- Abstract
Stress-induced heart failure, also known as Broken Heart Syndrome or Takotsubo Syndrome, is a phenomenon characterized as rare but well described in the literature, with increasing incidence. While more commonly associated with postmenopausal women with psychiatric disorders, this entity is found in the postoperative patient. The nonischemic cardiogenic shock manifests as biventricular failure with significant decreases in ejection fraction and cardiac function. In a review of over 3000 kidney and liver transplantations over the course of 17 years within two transplant centers, we describe a series of 7 patients with Takotsubo Syndrome after solid organ transplantation. Furthermore, we describe a novel approach of successfully treating the transient, though potentially fatal, cardiogenic shock with a percutaneous ventricular assistance device in two liver transplant patients, while treating one kidney transplant patient medically and the remaining four liver transplant patients with an intra-aortic balloon pump. We describe our experience with Takotsubo's Syndrome and compare the three modalities of treatment and cardiac augmentation. Our series is novel in introducing the percutaneous ventricular assist device as a more minimally invasive intervention in treating nonischemic heart failure in the solid organ transplant patient, while serving as a comprehensive overview of treatment modalities for stress-induced heart failure.
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- 2018
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21. An impressive choledochal cyst and its surgical resection.
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Galván NTN, Kumm K, Yoeli D, Witte E, Kueht M, Cotton RT, Rana A, O'Mahony CA, and Goss JA
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Introduction: Choledochal cysts are rare congenital dilations of the biliary tree that can present with non-specific symptoms such as abdominal pain, jaundice, cholelithiasis and pancreatitis. Although most commonly identified in children, they can be found in the adult population. However, because of the non-specific symptoms, this diagnosis may be difficult to make in the adult. A physician therefore must keep this diagnosis within their differential, as it may arise in an unexpected patient population who may present with a convoluted work up., Case Presentation: In this report, we present the case of a 50-year-old African American woman with recurrent cholelithiasis, cholangitis and eventually obstructive jaundice despite undergoing a laparoscopic cholecystectomy six years prior. Her only work up at that point was a right upper quadrant ultrasound revealing gallbladder sludge, which led to her cholecystectomy. It was the persistence of her symptoms-abdominal pain, cholangitis and obstructive jaundice-previously attributed to chronic cholecystitis and choledocholithiasis that warranted further work up. After multiple physician visits, she was referred to our academic center after an ERCP was performed and she was found to have a dilation of her common bile duct consistent with a choledochal cyst. Furthermore, the ERCP identified multiple bile duct stones within the cyst. This was not identified on her original ultrasound or prior ERCPs. The patient underwent a complete cyst excision with Roux-en-Y hepaticojejunostomy and did well post-operatively., Discussion: This report illustrates how choledochal cysts can be an elusive diagnosis, but may present with repeated infections, recurrent biliary stones, and biliary obstruction despite a cholecystectomy. Had she an MRCP prior to her cholecystectomy, she would likely have avoided multiple surgeries, and years of persistent symptoms. Choledochal cysts are associated with an increased risk of biliary malignancy and therefore cyst excision is the standard of care., Conclusion: Although rare, physicians need to keep this diagnosis in mind, and be aware of the clinical and imaging findings consistent with a choledochal cyst in order to facilitate appropriate work up, referral and treatment., (Copyright © 2017 The Author(s). Published by Elsevier Ltd.. All rights reserved.)
- Published
- 2017
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22. Fetal autonomic brain age scores, segmented heart rate variability analysis, and traditional short term variability.
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Hoyer D, Kowalski EM, Schmidt A, Tetschke F, Nowack S, Rudolph A, Wallwitz U, Kynass I, Bode F, Tegtmeyer J, Kumm K, Moraru L, Götz T, Haueisen J, Witte OW, Schleußner E, and Schneider U
- Abstract
Disturbances of fetal autonomic brain development can be evaluated from fetal heart rate patterns (HRP) reflecting the activity of the autonomic nervous system. Although HRP analysis from cardiotocographic (CTG) recordings is established for fetal surveillance, temporal resolution is low. Fetal magnetocardiography (MCG), however, provides stable continuous recordings at a higher temporal resolution combined with a more precise heart rate variability (HRV) analysis. A direct comparison of CTG and MCG based HRV analysis is pending. The aims of the present study are: (i) to compare the fetal maturation age predicting value of the MCG based fetal Autonomic Brain Age Score (fABAS) approach with that of CTG based Dawes-Redman methodology; and (ii) to elaborate fABAS methodology by segmentation according to fetal behavioral states and HRP. We investigated MCG recordings from 418 normal fetuses, aged between 21 and 40 weeks of gestation. In linear regression models we obtained an age predicting value of CTG compatible short term variability (STV) of R (2) = 0.200 (coefficient of determination) in contrast to MCG/fABAS related multivariate models with R (2) = 0.648 in 30 min recordings, R (2) = 0.610 in active sleep segments of 10 min, and R (2) = 0.626 in quiet sleep segments of 10 min. Additionally segmented analysis under particular exclusion of accelerations (AC) and decelerations (DC) in quiet sleep resulted in a novel multivariate model with R (2) = 0.706. According to our results, fMCG based fABAS may provide a promising tool for the estimation of fetal autonomic brain age. Beside other traditional and novel HRV indices as possible indicators of developmental disturbances, the establishment of a fABAS score normogram may represent a specific reference. The present results are intended to contribute to further exploration and validation using independent data sets and multicenter research structures.
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- 2014
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23. [Value of lymphography, cavography, sonography and computed tomography in the staging and control of germinal testicular tumors].
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Vogler H, Altmann R, Schmidt V, Kumm KP, and Seeger W
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- Humans, Lymphatic Metastasis diagnosis, Male, Neoplasm Staging, Lymphography, Teratoma diagnosis, Testicular Neoplasms diagnosis, Tomography, X-Ray Computed, Ultrasonography, Venae Cavae diagnostic imaging
- Published
- 1982
24. [Results of local intracoronary fibrinolysis in acute myocardial infarct and the effects of reperfusion on the function of the left ventricle].
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Müller JH, Weser C, Anders G, Kumm KP, Brunke W, and Heinrichs C
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- Cardiac Output drug effects, Coronary Angiography, Coronary Vessels drug effects, Female, Heart Ventricles drug effects, Humans, Male, Middle Aged, Myocardial Infarction diagnostic imaging, Stroke Volume drug effects, Coronary Circulation drug effects, Fibrinolysis drug effects, Myocardial Contraction drug effects, Myocardial Infarction drug therapy, Streptokinase therapeutic use, Urokinase-Type Plasminogen Activator therapeutic use
- Abstract
Out of 46 patients who had undergone acute coronary angiography in 41 a definitive acute myocardial infarction was present. In 31 complete and in 10 cases subtotal obliterations of the infarct-related coronary artery were found. 14 patients had a one-vessel-disease, 8 a two-vessel-disease, but 19 a three-vessel-disease. In these 41 patients with acute myocardial infarction a subsequent intracoronary fibrinolysis therapy with streptokinase or urokinase immediately followed, which was successful in 33 patients (80.5%). Coronarographically neither a recanalization or a marked improvement of luminal patency of the infarct-related coronary artery could be proved. In 4 patients an additional guidewire thrombus perforation was necessary. The intracoronary fibrinolysis lasted maximally 2 hours (average total dosage 121.000 +/- 45.000 U streptokinase) and was essentially well tolerated. Only 3 patients of the treatment group died. 20 patients underwent a repeated angiography on average 8 1/2 months after fibrinolysis therapy, out of this group in 10 successfully treated patients comparable quantitative angiographic investigations are present. Heart index, stroke volume and systolic ejection fraction improved significantly. The percental size of the non-contracting area of the myocardium decreased statistically significantly. The recanalized coronary arteries were still patent at control.
- Published
- 1984
25. [Combined nuclear medicine studies of hemodynamics and myocardial perfusion with 99mTc-microspheres in coronary angiography].
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Hämmerlein M, Eichhorst E, Müller JA, Götsche A, Kumm KP, Möllerke C, Scheidler HJ, and Müller P
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- Angiography, Humans, Microspheres, Radionuclide Imaging, Myocardial Infarction diagnostic imaging, Stroke Volume, Technetium
- Published
- 1985
26. [Angiographic studies on regional contraction behavior of the left ventricle in the acute phase of myocardial infarction].
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Müller JH, Weser C, Waigand J, and Kumm KP
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- Angiocardiography methods, Female, Humans, Male, Myocardial Contraction, Heart Ventricles physiopathology, Myocardial Infarction physiopathology
- Abstract
Quantitative angiocardiographic examinations concerning the regional contraction of the left ventricle in 16 patients with acute myocardial infarction were performed. In comparison to a control group of 6 healthy male patients the determination of the speed of the medium regional shortening (MVRF) of 12 different ventricle segments resulted in typical findings deviating from the normal. On the second day after beginning of the infarction in the area of the myocardium affected by an acute infarction there existed as a rule severe hypokinetic and akinetic disturbances of the contraction (13 times), only in three cases slight paradoxical movements of the ventricular wall (dyskinesias) could be observed. The average speed of shortening of all segments together (MVRF) excellently represents the momentary global function of the ventricle. It comprises in the same way acutely and chronicly disturbed areas as well as also the function of regions of the myocardium which are not disturbed. MV/RF and systolic ejection fraction (SEF) show statistically a highly significant correlation of r = 0,797 (p less than 0.001). On the basis of the findings got considerations are performed concerning a proved differential therapy in the acute stage of the myocardial infarction.
- Published
- 1978
27. [The value of radiological and clinical results for the diagnosis of the vesicoureteral reflux of the adult. A multivariate study (author's transl)].
- Author
-
Altmann R, Kumm KP, Idkowiak G, Raschke P, and Stobbe G
- Subjects
- Adult, Female, Humans, Male, Pyelonephritis diagnostic imaging, Urography, Vesico-Ureteral Reflux diagnostic imaging
- Published
- 1980
28. [Quantitative angiographic studies for the differential diagnosis of early acute kidney failure of ischemic and rejection-damaged grafts].
- Author
-
Müller JH, Schuldt HH, Hölzer DH, Kumm KP, Waigand J, and Althaus P
- Subjects
- Animals, Diagnosis, Differential, Dogs, Female, Kidney Transplantation, Male, Radiography, Time Factors, Transplantation, Autologous, Transplantation, Homologous, Acute Kidney Injury diagnostic imaging, Graft Rejection, Ischemia diagnostic imaging, Kidney blood supply, Renal Artery diagnostic imaging
- Abstract
On 22 auto- or homotransplanted kidneys of dogs a quantitative angiographic evaluation of the corticalis perfusion was carried out. For this purpose four special parameters were evaluated. With the help of the linear discriminance analysis we succeed in a sufficient secure separation between autografts impaired by ischaemia or shock on the one hand and homografts impaired by rejection on the other. It is referred to the prognostic significance of angiography in human graft kidneys with disturbed function.
- Published
- 1979
29. [Planimetric measurement of kidney size in patients with stenosis of the renal artery (author's transl)].
- Author
-
Hölzer DH, Kumm KP, and Müller JH
- Subjects
- Adult, Humans, Kidney diagnostic imaging, Middle Aged, Radiography, Renal Artery diagnostic imaging, Renal Artery Obstruction diagnostic imaging, Renal Artery Obstruction pathology, Kidney pathology, Renal Artery Obstruction surgery
- Abstract
Comparison of pre- and postoperative angiograms reveals no significant statistical difference concerning kidney size after successful reconstruction of the renal artery. This examination is based on planimetric data of 10 patients with haemodynamical important stenoses of the renal artery (including one patient with bilateral stenosis).
- Published
- 1979
30. [Comparative phlebographic and phlebodynamometric studies on the severity of postthrombotic syndrome].
- Author
-
Müller JH, Petter O, and Kumm KP
- Subjects
- Humans, Leg blood supply, Phlebography, Thrombophlebitis complications, Tourniquets, Venous Insufficiency etiology, Thrombophlebitis pathology, Veins pathology, Venous Insufficiency diagnosis
- Published
- 1982
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