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Storck K, Kotz S, Riedel F, Veit JA. Complications Associated with Alloplastic Materials in Rhinoplasty and Their Operative Management. Facial Plast Surg 2023. [PMID: 37709291 DOI: 10.1055/s-0043-1772846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/16/2023] Open
Abstract
Whereas rhinoplasty with a reduction of the dorsum and modification of the tip is a common procedure among Caucasians, augmentation of the dorsum remains a challenge in Asians. Choice of the ideal grafting material for dorsal augmentation is a matter of preference and remains under discussion. Autologous and alloplastic materials have their advantages and disadvantages. We report our experiences of the extrusion of alloplastic materials and their management. We report of 18 patients, who had rhinoplasty in the past for dorsal augmentation with alloplastic material. Augmentation rhinoplasty was performed in Asia (n = 15) and Germany (n = 3). All cases showed recurrent signs of foreign body infection and/or partial extrusion and therefore underwent revision surgery in our centers. Once all patients had been successfully treated with antibiotics, we performed a one-stage revision rhinoplasty with explantation of the alloplastic material and subsequent reconstruction with autologous rib cartilage. The nasal dorsum was augmented with either solid rib cartilage grafts, diced cartilage in fascia, or free diced cartilage in platelet-rich fibrin. All patients received pre-, peri-, and postoperative antibiotics. The outcome was screened via clinical examination, ultrasound examination pre- and postoperatively, two-dimensional/three-dimensional (3D) imaging, and magnetic resonance imaging scans.Alloplastic augmentation of the nasal dorsum runs the risk of foreign body reaction, recurrent infections, uncontrolled scarring, and unsatisfying long-term results. We have obtained a series of aesthetically and functionally satisfying results after single-stage revision surgery with autologous cartilage and demonstrate a variety of novel postoperative screening tools including 3D imaging and high-frequency ultrasound. LEVEL OF EVIDENCE: N/A.
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Affiliation(s)
- K Storck
- Department of Otorhinolaryngology, Head and Neck Surgery, Klinikum Rechts der Isar, TU Munich, Munich, Germany
| | - S Kotz
- Department of Otorhinolaryngology, Head and Neck Surgery, Klinikum Rechts der Isar, TU Munich, Munich, Germany
| | - F Riedel
- Department of Otorhinolarnygology, HNO-Zentrum Rhein-Neckar, Mannheim, Germany
| | - J A Veit
- Department of Otorhinolarnygology, Praxis für Nasenchirurgie München, Munich, Germany
- Department of Otorhinolaryngology, Head and Neck Surgery, University Medical Center Mannheim, Mannheim, Germany
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Sanders JN, Adkins DE, Kaur S, Storck K, Gawron LM, Turok DK. Bleeding, cramping, and satisfaction among new copper IUD users: A prospective study. PLoS One 2018; 13:e0199724. [PMID: 30403671 PMCID: PMC6221252 DOI: 10.1371/journal.pone.0199724] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 10/23/2018] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE We assess change in bleeding, cramping, and IUD satisfaction among new copper (Cu) IUD users during the first six months of use, and evaluate the impact of bleeding and cramping on method satisfaction. METHODS We recruited 77 women ages 18-45 for this prospective longitudinal observational cohort study. Eligible women reported regular menses, had no exposure to hormonal contraception in the last three months, and desired a Cu IUD for contraception. We collected data prospectively for 180 days following IUD insertion. Monthly, participants reported bleeding scores using the validated pictorial blood loss assessment chart (PBAC), IUD satisfaction using a five-point Likert scale, and cramping using a six-level ordinal scale. We used multiple imputation to address nonrandom attrition. Structural equation models for count and ordered outcomes were used to model bleeding, cramping, and IUD satisfaction growth curves over the six monthly repeated assessments. RESULTS Bleeding significantly decreased (approximately 23%) over the course of the study from an estimated PBAC = 195 at one month post-insertion to PBAC = 151 at six months (t = -2.38, p<0.05). Additionally, IUD satisfaction improved over time (t = 2.65, p<0.01), increasing from between "Neutral" and "Satisfied" to "Satisfied" over the six month study. Cramping decreased notably over the six month study from between biweekly and weekly, to once or twice a month (t = -4.38, p<0.001). Finally, bleeding, but not cramping, was associated with IUD satisfaction across the study (t = -2.31, p<0.05) and at study end (t = -2.81, p<0.01). CONCLUSIONS New Cu IUD users reported decreasing bleeding and cramping, and increasing IUD satisfaction, over the first six months. Method satisfaction was negatively associated with bleeding.
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Affiliation(s)
- Jessica N. Sanders
- Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, Utah, United States of America
| | - Daniel E. Adkins
- Department of Sociology, University of Utah, Salt Lake City, Utah, United States of America
- Department of Psychiatry, University of Utah, Salt Lake City, Utah, United States of America
- * E-mail:
| | - Simranvir Kaur
- School of Medicine, University of Utah, Salt Lake City, Utah, United States of America
| | - Kathryn Storck
- Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, Utah, United States of America
| | - Lori M. Gawron
- Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, Utah, United States of America
| | - David K. Turok
- Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, Utah, United States of America
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Buchberger AMS, Baumann A, Johnson F, Peters N, Piontek G, Storck K, Pickhard A. The role of oral anticoagulants in epistaxis. Eur Arch Otorhinolaryngol 2018; 275:2035-2043. [PMID: 29936627 PMCID: PMC6060781 DOI: 10.1007/s00405-018-5043-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 06/16/2018] [Indexed: 01/13/2023]
Abstract
Purpose The purpose of this retrospective study was to identify the impact of oral anticoagulants on epistaxis with the focus on new oral anticoagulants. Methods The study was conducted at the Department for Ear- Nose- and Throat (ENT), Head and Neck Surgery, Technical University Munich, Germany. All patients presenting in 2014 with the diagnosis of epistaxis to a specialized ENT accident and emergency department were identified and analyzed in clinical data and medication. Results 600 adult cases, with a median age of 66.6 years were identified with active bleeding. 66.8% of all cases were anticoagulated. Classic oral anticoagulants (COAC) were three times more common in patients than new-generation oral anticoagulants (NOAC). Recurrent bleeding was significantly associated with oral anticoagulants (OAC) (p = 0.014) and bleeding location was most often anterior (p = 0.006). In contrast, severe cases, which required surgery or embolization were significantly more likely in non-anticoagulated middle-aged patients with posterior bleedings (p < 0.05). In our epistaxis cohort, OAC were highly overrepresented (40%) when compared to the general German population (1%) but COAC as well as NOAC played only a minor role in severe courses of epistaxis. Conclusion Oral anticoagulation, especially with new-generation drugs, is not associated with more complicated and severe courses of epistaxis, but rather with recurrent bleeding. One should keep this information in mind when triaging the patient in the emergency room and when planning further procedures.
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Affiliation(s)
- A M S Buchberger
- Department for Ear- Nose- and Throat, Head and Neck Surgery, University hospital Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - A Baumann
- Department of Otolaryngology Head and Neck Surgery, Helios Amper-Klinikum Dachau, Krankenhausstraße 15, 85221, Dachau, Germany.
| | - F Johnson
- Department for Ear- Nose- and Throat, Head and Neck Surgery, University hospital Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - N Peters
- Department for Ear- Nose- and Throat, Head and Neck Surgery, University hospital Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - G Piontek
- Department for Ear- Nose- and Throat, Head and Neck Surgery, University hospital Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - K Storck
- Department for Ear- Nose- and Throat, Head and Neck Surgery, University hospital Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - A Pickhard
- Department for Ear- Nose- and Throat, Head and Neck Surgery, University hospital Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
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Storck K, Ell J, Regn S, Rittler-Ungetüm B, Mayer H, Schantz T, Müller D, Buchberger M. Optimization of in vitro cultivation strategies for human adipocyte derived stem cells. Adipocyte 2015; 4:181-7. [PMID: 26257991 PMCID: PMC4496977 DOI: 10.4161/21623945.2014.987580] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 10/16/2014] [Accepted: 11/10/2014] [Indexed: 01/07/2023] Open
Abstract
With adipose-derived stem cells being in the focus of research in regenerative medicine, the need arises for fast reliable cultivation protocols. We have tested the cultivation of human adipose-derived stem cells in endothelial cell growth medium prior to induction and differentiation, against the long-established use of DMEM/F12 medium-based cultivation protocols. We found that cultivation in endothelial cell growth medium not only accelerates growth before induction and differentiation, but also allows shorter induction and differentiation times than those following precultivation with DMEM/F12 medium with regard to the formation of mature adipocytes and to the viability undifferentiated cells. These results were first observed morphologically but could be confirmed by performing adiponectin ELISA and cell proliferation assays.
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Affiliation(s)
- K Storck
- Department of Oto- Rhino- Laryngology; Head and Neck Surgery; Klinikum Rechts der Isar der TU München; Munich, Germany
| | - J Ell
- Department of Oto- Rhino- Laryngology; Head and Neck Surgery; Klinikum Rechts der Isar der TU München; Munich, Germany
| | - S Regn
- Department of Oto- Rhino- Laryngology; Head and Neck Surgery; Klinikum Rechts der Isar der TU München; Munich, Germany
| | - B Rittler-Ungetüm
- Department of Oto- Rhino- Laryngology; Head and Neck Surgery; Klinikum Rechts der Isar der TU München; Munich, Germany
| | - H Mayer
- Department of Oto- Rhino- Laryngology; Head and Neck Surgery; Klinikum Rechts der Isar der TU München; Munich, Germany
| | - T Schantz
- Department of Plastic and Reconstructive Surgery; Klinikum Rechts der Isar der TU München; Munich, Germany
| | - D Müller
- Department of Plastic and Reconstructive Surgery; Klinikum Rechts der Isar der TU München; Munich, Germany
| | - M Buchberger
- Department of Oto- Rhino- Laryngology; Head and Neck Surgery; Klinikum Rechts der Isar der TU München; Munich, Germany
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Storck K, Staudenmaier R, Buchberger M, Strenger T, Kreutzer K, von Bomhard A, Stark T. Total reconstruction of the auricle: our experiences on indications and recent techniques. Biomed Res Int 2014; 2014:373286. [PMID: 24822198 PMCID: PMC4005147 DOI: 10.1155/2014/373286] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 02/09/2014] [Accepted: 02/10/2014] [Indexed: 12/04/2022]
Abstract
INTRODUCTION Auricular reconstruction is a great challenge in facial plastic surgery. With the advances in surgical techniques and biotechnology, different options are available for consideration. The aim of this paper is to review the knowledge about the various techniques for total auricular reconstruction based on the literature and our experience. METHODS Approximately 179 articles published from 1980 to 2013 were identified, and 59 articles were included. We have focused on the current status of total auricular reconstruction based on our personal experience and on papers of particular interest, published within the period of review. We have also included a prospective view on the tissue engineering of cartilage. RESULTS Most surgeons still practice total auricular reconstruction by employing techniques developed by Brent, Nagata, and Firmin with autologous rib cartilage. Within the last years, alloplastic frameworks for reconstruction have become well established. Choosing the reconstruction techniques depends mainly on the surgeon's preference and experience. Prosthetic reconstruction is still reserved for special conditions, even though the material is constantly improving. Tissue engineering has a growing potential for clinical applicability. CONCLUSION Auricular reconstruction still receives attention of plastic/maxillofacial surgeons and otolaryngologists. Even though clinical applicability lags behind initial expectations, the development of tissue-engineered constructs continues its potential development.
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Affiliation(s)
- K. Storck
- Department of Otorhinolaryngology, Head and Neck Surgery, Klinikum Rechts der Isar, Technische Universität München, Ismaninger Strasse 22, 81675 München, Germany
| | - R. Staudenmaier
- Department of Otorhinolaryngology, Head and Neck Surgery, Klinikum Rechts der Isar, Technische Universität München, Ismaninger Strasse 22, 81675 München, Germany
| | - M. Buchberger
- Department of Otorhinolaryngology, Head and Neck Surgery, Klinikum Rechts der Isar, Technische Universität München, Ismaninger Strasse 22, 81675 München, Germany
| | - T. Strenger
- Department of Otorhinolaryngology, Head and Neck Surgery, Klinikum Rechts der Isar, Technische Universität München, Ismaninger Strasse 22, 81675 München, Germany
| | - K. Kreutzer
- Department of Maxillofacial Surgery, Technische Universität München, Ismaninger Strasse 22, 81675 München, Germany
| | - A. von Bomhard
- Department of Maxillofacial Surgery, Technische Universität München, Ismaninger Strasse 22, 81675 München, Germany
| | - T. Stark
- Department of Otorhinolaryngology, Head and Neck Surgery, Klinikum Rechts der Isar, Technische Universität München, Ismaninger Strasse 22, 81675 München, Germany
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Storck K, Bas M, Gurr A, Staudenmaier R, Stark T. [Complications in 312 cases of nasal and auricular reconstruction via autologous rib cartilage]. Laryngorhinootologie 2013; 92:808-14. [PMID: 23945713 DOI: 10.1055/s-0033-1351261] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
BACKGROUND We present the results and complications with autologous rib cartilage in comparison to other materials in nasal and auricular reconstruction using a large patient collective from our clinic. MATERIAL AND METHODS The retrospective study included all cases of auricular and nasal reconstruction via rib cartilage between 2001 and 2009. The outcome was analysed by subjective and objective parameters. RESULTS 51/321 patients underwent plastic reconstructive surgery of the nose, 270/321 received a partial or complete auricle reconstruction with autologous rib cartilage. The complication rate e.g. of hematomas, lesions of the pleura, postoperative pain and keloids at the donation site was small. Concerning the aesthetic results of the nose and auricles 273 of 321 (85%) were satisfied after the first operation. Only 3/51 nasal reconstructions underwent a second operation. In case of complete auricular reconstructions, all patients underwent at least 2 operations for the three-dimensional look. CONCLUSIONS The use of autologous rip cartilage is still a good option in the auricular and nasal reconstruction. Depending on the expertise of the surgeon the postoperative aesthetic results are good with a low complication rate. However concerning the bigger effort in several aspects for the surgeon as the patient it should be reserved to specific indication criterias.
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Affiliation(s)
- K Storck
- Klinikum rechts der Isar, Hals-, Nasen-, Ohrenheilkunde, München
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7
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Caldwell HK, Dike OE, Stevenson EL, Storck K, Young WS. Social dominance in male vasopressin 1b receptor knockout mice. Horm Behav 2010; 58:257-63. [PMID: 20298692 PMCID: PMC2879445 DOI: 10.1016/j.yhbeh.2010.03.008] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2009] [Revised: 03/01/2010] [Accepted: 03/08/2010] [Indexed: 11/30/2022]
Abstract
We have previously reported that mice with a targeted disruption of their vasopressin 1b receptor gene, Avpr1b, have mild impairments in social recognition and reduced aggression. The reductions in aggression are limited to social forms of aggression, i.e., maternal and inter-male aggression, while predatory aggression remains unaffected. To further clarify the role of the Avpr1b in the regulation of social behavior we first examined anxiety-like and depression-like behaviors in Avpr1b knockout (Avpr1b -/-) mice. We then went on to test the ability of Avpr1b -/- mice to form dominance hierarchies. No major differences were found between Avpr1b -/- and wildtype mice in anxiety-like behaviors, as measured using an elevated plus maze and an open field test, or depression-like behaviors, as measured using a forced swim test. In the social dominance study we found that Avpr1b -/- mice are able to form dominance hierarchies, though in early hierarchy formation dominant Avpr1b -/- mice display significantly more mounting behavior on Day 1 of testing compared to wildtype controls. Further, non-socially dominant Avpr1b -/- mice spend less time engaged in attack behavior than wildtype controls. These findings suggest that while Avpr1b -/- mice may be able to form dominance hierarchies they appear to employ alternate strategies.
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Affiliation(s)
- Heather K Caldwell
- Department of Biological Sciences and the School of Biomedical Sciences, Kent State University, Kent, OH 44242, USA.
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Eisensehr I, Karlbauer G, Storck K. [Patient complains about sleep disorders: place "restless legs" therein]. MMW Fortschr Med 2005; 147:62-3. [PMID: 16302428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Affiliation(s)
- I Eisensehr
- Facharztin für Neurologie, Neurologie in der Sendlinger Strasse, München.
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Kratzer MA, Storck K, Groh J. Prediction of the transfusion effect of platelet concentrates as measured by a model of primary hemostasis ex vivo. Haemostasis 1997; 27:99-104. [PMID: 9212358 DOI: 10.1159/000217440] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A method to determine primary hemostasis ex vivo (Thrombostat) was modified to monitor the transfusion effect of platelet concentrates (PC) in 12 patients with thrombocytopenia following bone marrow transplantation. It was possible to measure platelet function in patients with a platelet count lower than 2 x 10(10)/l. In addition, the platelet aggregometer (Born) was adapted to determine cell function in PC anticoagulated with acid citrate dextrose of citrate phosphate dextrose. It was possible to make a prediction (r = 0.89) of the effect of a given PC on a patient's ex vivo primary hemostasis parameters. Platelet aggregation following addition of 20 muM ADP to PC, obtained from 12 single donors, resulted in an average maximal light transmission (light transmission/age of concentrate in days) of 61%/1 day and 37%/5 days, respectively. The same experiment gave only 39%/1 day and 13%/4 days for pooled platelets. To avoid possible immunization and bleeding complications, a reliable monitoring of platelet transfusion seems highly desirable.
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Affiliation(s)
- M A Kratzer
- Institute für Klinische Chemie, Klinikum Grosshadern, Universität München, Deutschland
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10
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Abstract
When analyzing transvalvular and venous flow velocity patterns, it is important to relate them to respiration. An accurate recording of respiratory phase can be carried out with different methods. One of these methods is the use of a thermistor, which reacts to the variation in air temperature, placed in the noise of the patient. The thermistor used has a diameter for 1.0 mm and is of standard bead type. Although small, it has a considerable long time-constant and a long time-delay. The high time-constant gives a low cutoff frequency, well below the respiratory frequency and thereby causing a large phase difference. The thermistor was analyzed with the lumped heat capacity method, where it was easy to study the influence from design parameters, time-dependent air temperature, and velocity. The analysis was extended using the finite element method and the temperature field in the thermistor and the probe was calculated as a function of space and time. These calculations confirmed the result from the lumped model. The result showed that timing of respiration was not accurately obtained with the thermistor analyzed. To improve the timing, it was necessary either to change the measuring method or to use signal processing in order to achieve faster response.
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Affiliation(s)
- K Storck
- Department of Mechanical Engineering Linköping University, Sweden
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11
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Abstract
Quality control of platelet concentrates (PC) is an important prerequisite for good transfusion praxis. However, direct measurement of platelet function is complex, since available methods (e.g. aggregometry, serotonin release) are time consuming and require special equipment. Therefore a test system is needed, which is easy to handle, fast, and achieves reliable results. The present paper compares the results of conventional platelet function tests with those of a modified in-vitro bleeding test (IVBT) (Thrombostat 4000) in liquid-stored and cryopreserved PCs. A high correlation between aggregometry, serotonin release, GMP 140 expression upon stimulation, and IVBT was demonstrated. Therefore IVBT seems to be a good alternative to the conventional platelet function tests for quality control of PCs. In addition, a good correlation between the results of IVBT of patients' blood after PC transfusion and IVBT of patients blood before transfusion supplemented with platelets of the respective PC could be found. Therefore IVBT seems to be able to predict PC transfusion success. However, since these data were obtained in a small sample undergoing bone marrow transplantation, further studies are needed to verify this hypothesis.
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Affiliation(s)
- M Böck
- Department of Transfusion Medicine, University of Magdeburg, Germany
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12
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Groh J, Storck K, Kratzer MA. [Quality control of platelet concentrates. Functional assessment of stored platelets in vitro]. Anaesthesist 1993; 42:847-55. [PMID: 8304580] [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: 01/29/2023]
Abstract
Platelet concentrates transfused for correction of thrombocytopenia or reduced platelet function do not consistently improve primary haemostasis in the recipient. Insufficient therapeutic effects may be caused by impaired donor platelet function and by unfavourable donation and storage conditions, as well as by immunological interactions with the recipient blood. The present study was designed to investigate whether the effect of platelet transfusion on recipient platelet function can be predicted by in vitro methods. METHODS. Blood samples were taken from 12 thrombocytopenic patients before (20 ml, P0) and after (10 ml, P(vivo)) transfusion of one unit of platelets previously stored for 24-120 h in acid citrate dextrose. An additional sample was taken from the platelet concentrate (TK) immediately before transfusion. P0 was divided into two specimens and TK platelets were added to one of them (P(vitro) in order to obtain a platelet count similar to that in P(vivo). Bleeding time (BT) and bleeding volume (BV) of the samples P0, P(vivo) and P(vitro) were measured using the method of Kratzer and Born (Fig. 2); mean values were calculated for each sample from six measurements. Aggregability of TK platelets was determined in addition by aggregometry. In contrast to previous studies, physiological Ca2+ concentrations were restored and secondary haemostasis was inhibited by low-molecular-weight heparin (Fragmin P, Pfrimmer Kabi GmbH und Co. KG, Erlangen) in the platelet-rich plasma used for aggregometry. RESULTS. Platelet counts increased in all patients after transfusion (P(vivo) vs P0, Table 1) and were nearly identical in P(vitro) and P(vivo) (r = 0.94, P < 0.001; Fig. 3). Parameters of primary haemostasis were significantly improved by addition of platelets to P0 in vitro (BT P < 0.05, BV P < 0.01) as well as by platelet transfusion (BT P < 0.05, BV P < 0.01). Direct comparison of P(vitro) and P(vivo) yielded a very close correlation of BT (r = 0.88, P < 0.001) and BV (r = 0.89, P < 0.01) in both samples. Although aggregometry revealed decreasing platelet function with increased storage time, aggregability was considerably higher compared to previous studies of platelet concentrates stored for 2-5 days. CONCLUSION. A new technique has been developed which allows reliable prediction of the effect of platelet concentrates on primary haemostasis of the recipient by in vitro measurement of bleeding time and bleeding volume prior to transfusion using the method of Kratzer and Born.
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Affiliation(s)
- J Groh
- Institut für Anaesthesiologie, Ludwig-Maximilians-Universität München
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13
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Engelhardt A, Becker W, Storck K. [Experiences in developing a bioelectric arm prosthesis]. BIOMED ENG-BIOMED TE 1971; 16:130-3. [PMID: 5109768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Kreutzkamp N, Storck K, Schimpfky C. [Hydrazine- and hydroxylamine-derivatives of phosphonous acids]. Arch Pharm Ber Dtsch Pharm Ges 1969; 302:554-60. [PMID: 4315472 DOI: 10.1002/ardp.19693020711] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Kreutzkamp N, Schimpfky C, Storck K. [On the conversion of some enamines of beta-dicarbonyl-compounds with hypophosphorous acid]. Arch Pharm Ber Dtsch Pharm Ges 1968; 301:247-50. [PMID: 4299565 DOI: 10.1002/ardp.19683010403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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17
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Kreutzkamp N, Schimpfky C, Storck K. [On the preparation and properties of alpha-amino phosphonic acids]. Arch Pharm Ber Dtsch Pharm Ges 1967; 300:868-74. [PMID: 5249977 DOI: 10.1002/ardp.19673001010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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