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Dive into the research topics where Zeljko Krznaric is active.

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Featured researches published by Zeljko Krznaric.


Clinical Nutrition | 2006

ESPEN Guidelines on Parenteral Nutrition: Geriatrics

L. Sobotka; Stéphane M. Schneider; Yitshal N. Berner; Tommy Cederholm; Zeljko Krznaric; Alan Shenkin; Zeno Stanga; G. Toigo; M. Vandewoude; D. Volkert

Older subjects are at increased risk of partial or complete loss of independence due to acute and/or chronic disease and often of concomitant protein caloric malnutrition. Nutritional care and support should be an indispensable part of their management. Enteral nutrition is always the first choice for nutrition support. However, when patients cannot meet their nutritional requirements adequately via the enteral route, parenteral nutrition (PN) is indicated. PN is a safe and effective therapeutic procedure and age per se is not a reason to exclude patients from this treatment. The use of PN should always be balanced against a realistic chance of improvement in the general condition of the patient. Lower glucose tolerance, electrolyte and micronutrient deficiencies and lower fluid tolerance should be assumed in older patients treated by PN. Parenteral nutrition can be administered either via peripheral or central veins. Subcutaneous administration is also a possible solution for basic hydration of moderately dehydrated subjects. In the terminal, demented or dying patient the use of PN or hydration should only be given in accordance with other palliative treatments.


Clinical Nutrition | 2017

ESPEN guidelines on nutrition in cancer patients

Jann Arends; Patrick Bachmann; Vickie E. Baracos; Nicole Barthelemy; Hartmut Bertz; Federico Bozzetti; Kenneth Fearon; Elisabeth Hütterer; Elizabeth Isenring; Stein Kaasa; Zeljko Krznaric; Barry Laird; Maria Larsson; Alessandro Laviano; Stefan Mühlebach; Maurizio Muscaritoli; Line Oldervoll; Paula Ravasco; Tora S. Solheim; Florian Strasser; Marian A.E. de van der Schueren; Jean-Charles Preiser

Cancers are among the leading causes of morbidity and mortality worldwide, and the number of new cases is expected to rise significantly over the next decades. At the same time, all types of cancer treatment, such as surgery, radiation therapy, and pharmacological therapies are improving in sophistication, precision and in the power to target specific characteristics of individual cancers. Thus, while many cancers may still not be cured they may be converted to chronic diseases. All of these treatments, however, are impeded or precluded by the frequent development of malnutrition and metabolic derangements in cancer patients, induced by the tumor or by its treatment. These evidence-based guidelines were developed to translate current best evidence and expert opinion into recommendations for multi-disciplinary teams responsible for identification, prevention, and treatment of reversible elements of malnutrition in adult cancer patients. The guidelines were commissioned and financially supported by ESPEN and by the European Partnership for Action Against Cancer (EPAAC), an EU level initiative. Members of the guideline group were selected by ESPEN to include a range of professions and fields of expertise. We searched for meta-analyses, systematic reviews and comparative studies based on clinical questions according to the PICO format. The evidence was evaluated and merged to develop clinical recommendations using the GRADE method. Due to the deficits in the available evidence, relevant still open questions were listed and should be addressed by future studies. Malnutrition and a loss of muscle mass are frequent in cancer patients and have a negative effect on clinical outcome. They may be driven by inadequate food intake, decreased physical activity and catabolic metabolic derangements. To screen for, prevent, assess in detail, monitor and treat malnutrition standard operating procedures, responsibilities and a quality control process should be established at each institution involved in treating cancer patients. All cancer patients should be screened regularly for the risk or the presence of malnutrition. In all patients - with the exception of end of life care - energy and substrate requirements should be met by offering in a step-wise manner nutritional interventions from counseling to parenteral nutrition. However, benefits and risks of nutritional interventions have to be balanced with special consideration in patients with advanced disease. Nutritional care should always be accompanied by exercise training. To counter malnutrition in patients with advanced cancer there are few pharmacological agents and pharmaconutrients with only limited effects. Cancer survivors should engage in regular physical activity and adopt a prudent diet.


Clinical Nutrition | 2017

ESPEN guideline: Clinical nutrition in inflammatory bowel disease.

Alastair Forbes; Johanna C. Escher; Xavier Hébuterne; Stanislaw Klek; Zeljko Krznaric; Stéphane M. Schneider; Raanan Shamir; Kalina Stardelova; Nicolette Wierdsma; Anthony E. Wiskin; Stephan C. Bischoff

INTRODUCTION The ESPEN guideline presents a multidisciplinary focus on clinical nutrition in inflammatory bowel disease (IBD). METHODOLOGY The guideline is based on extensive systematic review of the literature, but relies on expert opinion when objective data were lacking or inconclusive. The conclusions and 64 recommendations have been subject to full peer review and a Delphi process in which uniformly positive responses (agree or strongly agree) were required. RESULTS IBD is increasingly common and potential dietary factors in its aetiology are briefly reviewed. Malnutrition is highly prevalent in IBD - especially in Crohns disease. Increased energy and protein requirements are observed in some patients. The management of malnutrition in IBD is considered within the general context of support for malnourished patients. Treatment of iron deficiency (parenterally if necessary) is strongly recommended. Routine provision of a special diet in IBD is not however supported. Parenteral nutrition is indicated only when enteral nutrition has failed or is impossible. The recommended perioperative management of patients with IBD undergoing surgery accords with general ESPEN guidance for patients having abdominal surgery. Probiotics may be helpful in UC but not Crohns disease. Primary therapy using nutrition to treat IBD is not supported in ulcerative colitis, but is moderately well supported in Crohns disease, especially in children where the adverse consequences of steroid therapy are proportionally greater. However, exclusion diets are generally not recommended and there is little evidence to support any particular formula feed when nutritional regimens are constructed. CONCLUSIONS Available objective data to guide nutritional support and primary nutritional therapy in IBD are presented as 64 recommendations, of which 9 are very strong recommendations (grade A), 22 are strong recommendations (grade B) and 12 are based only on sparse evidence (grade 0); 21 recommendations are good practice points (GPP).


Journal of Parenteral and Enteral Nutrition | 2015

Prevalence of Malnutrition in Various Political, Economic, and Geographic Settings

Stanislaw Klek; Zeljko Krznaric; Rıza Haldun Gündoğdu; Michael Chourdakis; Gintautas Kekstas; Triin Jakobson; Piotr Paluszkiewicz; Darija Vranešić Bender; Mehmet Uyar; Kubilay Demirag; Kalliopi Anna Poulia; Andrius Klimasauskas; Joel Starkopf; Aleksander Galas

BACKGROUND Disease-related malnutrition (DRM) represents a critical public health concern. Therefore, Fight Against Malnutrition (FAM) should be a state priority, but the degree to which this is true appears to differ considerably among European countries. The aim of this study was to put the problem into perspective by comparing the prevalence of malnutrition in countries from opposite parts of the continent. METHODS Six countries-Croatia, Estonia, Greece, Lithuania, Poland, and Turkey-participated in the study. A short questionnaire was used to assess DRM: its prevalence, the current situation in hospitals, regulations for reimbursement, and general healthcare circumstances. Data from ESPENs NutritionDay 2006 were used to broaden the perspective. RESULTS At admission in October 2012, 4068 patients were assessed. The study was performed in 160 hospitals and 225 units with 9143 beds. The highest proportions of patients with 3 or more points on the Nutritional Risk Screening 2002 were observed in Estonia (80.4%) and Turkey (39.4%), whereas the lowest were in Lithuania (14.2%). The provision of nutrition support was best in Turkey (39.4% required intervention, 34.4% received intervention) and Poland (21.9% and 27.8%, respectively). Nutrition support teams (NSTs) are active in some countries, whereas in others they virtually do not exist. CONCLUSION The prevalence of malnutrition was quite high in some countries, and the nutrition approach differed among them. It could be the result of the lack of reimbursement, inactive or nonexistent NSTs, and low nutrition awareness. Those facts confirmed that the continuation of FAM activities is necessary.


Annals of Nutrition and Metabolism | 2012

Nutritional Screening Model in Tertiary Medical Unit in Croatia

Tajana Pavić; Neven Ljubičić; Sanja Stojsavljevic; Zeljko Krznaric

Background/Aims: Malnutrition of hospitalized patients is often undetected and untreated due to poor awareness and insufficient knowledge of the attending hospital staff. Nutritional screening has not been part of the daily routine in Croatian hospitals. Our aim was to implement nutritional screening as part of the routine medical examination and to assess the nutritional risk at admission for all hospitalized patients. Methods: All patients hospitalized in departments of internal medicine in tertiary hospitals in Croatia were screened at entry using the Nutrition Risk Screening 2002 (NRS 2002). Results: Between October and December 2010, 1,696 patients were screened and analyzed (948 males and 748 females). 329 (19.4%) had an NRS 2002 score ≥3 and were considered to be at nutritional risk. An NRS 2002 score ≥3 was identified as a significant predictor of the length of hospital stay (beta coefficient = 0.06, p = 0.027) and fatal outcome (OR = 6.18, p < 0.001). Only 32.8% of malnourished patients received some nutritional support. Conclusions: Every fifth patient hospitalized in a general medical department in Croatia is at nutritional risk and the majority of them does not receive nutritional support. More effort is needed to implement nutritional standards in daily clinical practice.


Digestive Diseases | 2011

Pharmaceutical Principles of Acid Inhibitors: Unmet Needs

Zeljko Krznaric; D. Ljubas Kelecic; N. Rustemovic; D. Vranesic Bender; Rajko Ostojić; P. Markos; Carmelo Scarpignato

Despite the well-established benefits of currently approved delayed-release proton pump inhibitors (PPIs) in the treatment of acid-related diseases, the unmet needs are still present and although often frustrating, they challenge clinicians. The unmet needs relate to the lack of complete control of acid secretion with oral PPI administration in the management of patients with gastroesophageal symptoms. These substantial groups of patients, who do not respond completely to standard doses of PPIs, are nonresponders, and their lack of response should be considered as PPI failure. Several mechanisms could explain PPI failure: differences in pharmacokinetics, PPI formulation, dosing time and diet, noncompliance, transient lower esophageal sphincter relaxations, esophageal hypersensitivity, and nocturnal acid breakthrough. To increase the quality of life of these patients and avoid multiple medical consultations and unnecessary investigations, we have to go one step forward and use combined therapy or look towards new treatments beyond acid suppression.


Asia Pacific Journal of Clinical Nutrition | 2015

Health insurance or subsidy has universal advantage for management of hospital malnutrition unrelated to GDP

Stanislaw Klek; Michael Chourdakis; Dima Abdulqudos Abosaleh; Alejandra Amestoy; Hyun Wook Baik; Gertrudis Baptista; Rocco Barazzoni; R. Fukushima; Josef Hartono; Ranil Jayawardena; Rafael Jimenez Garcia; Zeljko Krznaric; Ibolya Nyulasi; Gabriela Parallada; Eliza Mei Perez Francisco; Marina Panisic-Sekeljic; Mario Ignacio Perman; Arina Prins; Isabel Martinez Del Rio Requejo; Ravinder Reddy; Pierre Singer; Marianna S. Sioson; Andrew Ukleja; Carla Vartanian; Nicolas Velasco Fuentes; Dan Linetzky Waitzberg; Steve Leonce Zoungrana; Aleksander Galas

BACKGROUND AND OBJECTIVES Protein-energy and micronutrient malnutrition are global public health problems which, when not prevented and severe, require medical management by clinicians with nutrition expertise, preferably as a collectively skilled team, especially when disease-related. This study aimed to investigate barriers and facilitators of clinical nutrition services (CNS), especially the use of oral, enteral (EN) and parenteral (PN) nutrition in institutional and home settings. METHODS AND STUDY DESIGN An international survey was performed between January and December 2014 in twenty-six countries from all continents. Electronic questionnaires were distributed to 28 representatives of clinical nutrition (PEN) societies, 27 of whom responded. The questionnaire comprised questions regarding a countrys economy, reimbursement for CNS, education about and the use of EN and PN. RESULTS The prevalence of malnutrition was not related to gross domestic product (GDP) at purchasing power parity (PPP) per capita (p=0.186). EN and PN were used in all countries surveyed (100%), but to different extents. Reimbursement of neither EN nor PN use depended on GDP, but was associated with increased use of EN and PN in hospitals (p=0.035), although not evident for home or chronic care facilities. The size of GDP did not affect the use of EN (p=0.256), but it mattered for PN (p=0.019). CONCLUSIONS A worldwide survey by nutrition support societies did not find a link between national economic performance and the implementation of medical nutrition services. Reimbursement for CNS, available through health insurance systems, is a factor in effective nutrition management.


Clinical Nutrition | 2006

ESPEN Guidelines on Enteral Nutrition: Gastroenterology

André Van Gossum; Eduard Cabré; Xavier Hébuterne; Palle B. Jeppesen; Zeljko Krznaric; Bernard Messing; Jeremy Powell-Tuck; M. Staun; J.M.D. Nightingale


Clinical Nutrition | 2014

Protein intake and exercise for optimal muscle function with aging: Recommendations from the ESPEN Expert Group

Nicolaas E. P. Deutz; Jürgen M. Bauer; Rocco Barazzoni; Gianni Biolo; Yves Boirie; Anja Bosy-Westphal; Tommy Cederholm; Alfonso J. Cruz-Jentoft; Zeljko Krznaric; K. Sreekumaran Nair; Pierre Singer; Daniel Teta; Kevin D. Tipton; Philip C. Calder


Intensive Care Medicine | 2016

Fat-free mass at admission predicts 28-day mortality in intensive care unit patients: the international prospective observational study Phase Angle Project

Ronan Thibault; A.-M. Makhlouf; A. Mulliez; M. Cristina Gonzalez; Gintautas Kekstas; Nada Rotovnik Kozjek; Jean-Charles Preiser; Isabel Ceniceros Rozalen; Sylvain Dadet; Zeljko Krznaric; Kinga Kupczyk; Fabienne Tamion; Noël Cano; Claude Pichard

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Stanislaw Klek

Memorial Hospital of South Bend

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Jean-Charles Preiser

Université libre de Bruxelles

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Michael Chourdakis

Aristotle University of Thessaloniki

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Aleksander Galas

Jagiellonian University Medical College

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Noël Cano

Institut national de la recherche agronomique

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Stéphane M. Schneider

University of Nice Sophia Antipolis

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