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Kropf N. PSYCHOEDUCATIONAL AND SOCIAL SUPPORT INTERVENTIONS WITH OLDER ADULTS. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.068] [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: 11/12/2022] Open
Affiliation(s)
- N. Kropf
- Georgia State University, Atlanta, Georgia
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Kropf N, Cummings S. HEALTH AND MENTAL HEALTH ISSUES OF OLDER ADULTHOOD: EVIDENCE BASED TREATMENTS. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.065] [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: 11/13/2022] Open
Affiliation(s)
- N. Kropf
- Georgia State University, Atlanta, Georgia
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Cummings S, Li W, Kropf N. AGING AND MENTAL HEALTH: GLOBAL PERSPECTIVES. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.2262] [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: 11/15/2022] Open
Affiliation(s)
| | - W. Li
- James Cook University, Townsville, Queensland, Australia
| | - N. Kropf
- Georgia State University, Atlanta, Georgia
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McCarthy CM, Mehrara BJ, Long T, Garcia P, Kropf N, Klassen AF, Cano SJ, Li Y, Hurley K, Scott A, Disa JJ, Cordeiro PG, Pusic AL. Chest and Upper Body Morbidity Following Immediate Postmastectomy Breast Reconstruction. Ann Surg Oncol 2013; 21:107-12. [DOI: 10.1245/s10434-013-3231-z] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Indexed: 01/03/2023]
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Kropf N, Macadam SA, McCarthy C, Disa JJ, Pusic AL, Lio AD, Crisera C, Mehrara BJ. Influence of the recipient vessel on fat necrosis after breast reconstruction with a free transverse rectus abdominis myocutaneous flap. J Plast Surg Hand Surg 2010; 44:96-101. [DOI: 10.3109/02844311003675354] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Kropf N, Krishnan K, Chao M, Schweitzer M, Rosenberg Z, Russell SM. Sciatic nerve injury model in the axolotl: functional, electrophysiological, and radiographic outcomes. J Neurosurg 2010; 112:880-9. [PMID: 19764825 DOI: 10.3171/2008.10.jns08222] [Citation(s) in RCA: 7] [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: 11/06/2022]
Abstract
OBJECT The 2 aims of this study were as follows: 1) to establish outcome measures of nerve regeneration in an axolotl model of peripheral nerve injury; and 2) to define the timing and completeness of reinnervation in the axolotl following different types of sciatic nerve injury. METHODS The sciatic nerves in 36 axolotls were exposed bilaterally in 3 groups containing 12 animals each: Group 1, left side sham, right side crush; Group 2, left side sham, right side nerve resected and proximal stump buried; and Group 3 left side cut and sutured, right side cut and sutured with tibial and peroneal divisions reversed. Outcome measures included the following: 1) an axolotl sciatic functional index (ASFI) derived from video swim analysis; 2) motor latencies; and 3) MR imaging evaluation of nerve and muscle edema. RESULTS For crush injuries, the ASFI returned to baseline by 2 weeks, as did MR imaging parameters and motor latencies. For buried nerves, the ASFI returned to 20% below baseline by 8 weeks, with motor evoked potentials present. On MR imaging, nerve edema peaked at 3 days postintervention and gradually normalized over 12 weeks, whereas muscle denervation was present until a gradual decrease was seen between 4 and 12 weeks. For cut nerves, the ASFI returned to 20% below baseline by Week 4, where it plateaued. Motor evoked potentials were observed at 2-4 weeks, but with an increased latency until Week 6, and MR imaging analysis revealed muscle denervation for 4 weeks. CONCLUSIONS Multiple outcome measures in which an axolotl model of peripheral nerve injury is used have been established. Based on historical controls, recovery after nerve injury appears to occur earlier and is more complete than in rodents. Further investigation using this model as a successful "blueprint" for nerve regeneration in humans is warranted.
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Affiliation(s)
- Nina Kropf
- Department of Plastic and Reconstructive Surgery, Vienna General Hospital, Vienna, Austria
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Kropf N, Reavey P, McCarthy CM, Cordeiro PG, Pusic AL. [Abdominal morbidity following TRAM flap breast reconstruction--patient-reported outcome measures]. HANDCHIR MIKROCHIR P 2009; 41:374-7. [PMID: 19711254 DOI: 10.1055/s-0029-1231078] [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: 10/20/2022] Open
Abstract
PURPOSE/BACKGROUND Excellent aesthetic outcomes have been demonstrated with TRAM flap breast reconstruction. However, abdominal wall morbidity after TRAM flap breast reconstruction has not been accurately evaluated in terms of patient symptoms or patient quality of life. To further examine this issue, we performed a cross-sectional survey of TRAM flap breast reconstruction patients utilising questions from a patient-related outcome measure questionnaire. PATIENTS AND METHOD The questions were posed to post-mastectomy breast reconstruction patients. Items pertaining to abdominal wall symptoms and satisfaction with the outcome were reported on a 5-point Linkert Scale (1=very satisfied/no symptoms to 5=very dissatisfied/frequent symptoms). RESULTS The study population consisted of 270 patients who underwent pedicled (n=183) or free (n=87) TRAM flap procedures. The frequency of abdominal wall symptoms reported on abdomen-specific questionnaire items was increased in the pedicled TRAM group relative to the free TRAM group. This included "tightness or pulling in abdomen" (2.34 vs. 2.01); "abdominal pain, bloating, or discomfort" (2.11 vs. 1.69); "difficulty doing everyday activities requiring the use of your abdominal muscles" (2.11 vs. 1.67); and "abdominal weakness" (2.36 vs. 1.8). CONCLUSION We found a relatively low frequency of abdominal symptoms in the TRAM flap patients as a whole. However, there was a tendency towards increased abdominal symptoms in the pedicled TRAM patients compared to the free TRAM patients. As the population sizes in this study are somewhat limited, future studies with increased patient numbers may find greater differences between pedicled and free TRAM patients. In addition, studies evaluating the patients' abdominal wall symptoms pre- and postoperatively may allow for a detailed analysis of abdominal wall morbidity in post-mastectomy TRAM patients.
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Affiliation(s)
- N Kropf
- Memorial Sloan-Kettering Cancer Center, Division of Plastic and Reconstructive Surgery Service, New York 10065, USA.
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Reiner CS, Helbich TH, Rudas M, Ponhold L, Riedl CC, Kropf N, Fuchsjäger MH. Can galactography-guided stereotactic, 11-gauge, vacuum-assisted breast biopsy of intraductal lesions serve as an alternative to surgical biopsy? Eur Radiol 2009; 19:2878-85. [PMID: 19565246 DOI: 10.1007/s00330-009-1502-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2009] [Revised: 05/17/2009] [Accepted: 05/28/2009] [Indexed: 10/20/2022]
Abstract
The purpose of this study was to determine the value of galactography-guided, stereotactic, vacuum-assisted breast biopsy (VABB) for the assessment of intraductal breast lesions and its potential as a therapeutic tool that could eliminate the need for surgical excision. Eighteen patients (median age 64 years, range 37-80) with nipple discharge and galactography-verified intraductal lesions underwent galactography-guided, stereotactic, 11-gauge VABB followed by surgery. Histopathology findings from VABB and subsequent surgery were compared. Underestimation and false-negative rates were assessed. After VABB, histopathology revealed invasive ductal carcinoma (IDC) in three (17%), ductal carcinoma in situ (DCIS) in six (33%), high-risk lesions in six (33%) and benign lesions in three (17%) cases. After surgical biopsy, histopathology confirmed the previously established diagnosis in 11 lesions (61%). The underestimation rate for high-risk lesions and DCIS was 50% (6/12). The false-negative rate was 7% (1/14). Histopathology examination after surgery showed that not a single lesion had been completely removed at VABB. Galactography-guided VABB is a feasible diagnostic tool. However, its value as a therapeutic procedure is limited because of the high number of underestimated and missed lesions and because of the histopathological detection of lesions' remnants in every case. Surgical excision should be the therapeutic gold standard in cases of pathological nipple discharge and galactography abnormalities.
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Lammer C, Titscher A, Schrögendorfer K, Kropf N, Karle B, Haslik W, Travniczek U, Frey M. Sociology of breast tissue. Eur Surg 2007. [DOI: 10.1007/s10353-007-0345-1] [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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Frey M, Schrögendorfer K, Kropf N, Karle B, Haslik W, Lammer C. Immediate breast reconstruction – a review of indications, techniques and results. Eur Surg 2007. [DOI: 10.1007/s10353-007-0346-0] [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: 11/28/2022]
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Frey M, Giovanoli P, Tzou CHJ, Kropf N, Friedl S. Dynamic Reconstruction of Eye Closure by Muscle Transposition or Functional Muscle Transplantation in Facial Palsy. Plast Reconstr Surg 2004; 114:865-75. [PMID: 15468391 DOI: 10.1097/01.prs.0000133028.02303.16] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
For patients with facial palsy, lagophthalmus is often a more serious problem than the inability to smile. Dynamic reconstruction of eye closure by muscle transposition or by free functional muscle transplantation offers a good solution for regaining near-normal eye protection without the need for implants. This is the first quantitative study of three-dimensional preoperative and postoperative lid movements in patients treated for facial paralysis. Between February of 1998 and April of 2002, 44 patients were treated for facial palsy, including reconstruction of eye closure. Temporalis muscle transposition to the eye was used in 34 cases, and a regionally differentiated part of a free gracilis muscle transplant after double cross-face nerve grafting was used in 10 cases. Patients' facial movements were documented by a three-dimensional video analysis system preoperatively and 6, 12, 18, and 24 months postoperatively. For this comparative study, only the data of patients with preoperative and 12-month postoperative measurements were included. In the 27 patients with a final result after temporalis muscle transposition for eye closure, the distance between the upper and lower eyelid points during eye closing (as for sleep) was reduced from 10.33 +/- 2.43 mm (mean +/- SD) preoperatively to 5.84 +/- 4.34 mm postoperatively on the paralyzed side, compared with 0.0 +/- 0.0 mm preoperatively and postoperatively on the contralateral healthy side. In the resting position, preoperative values for the paralyzed side changed from 15.11 +/- 1.92 mm preoperatively to 13.46 +/- 1.94 mm postoperatively, compared with 12.17 +/- 2.02 mm preoperatively and 12.05 +/- 1.95 mm postoperatively on the healthy side. In the nine patients with a final result after surgery using a part of the free gracilis muscle transplant reinnervated by a zygomatic branch of the contralateral healthy side through a cross-face nerve graft, eyelid closure changed from 10.21 +/- 2.72 mm to 1.68 +/- 1.35 mm, compared with 13.70 +/- 1.56 mm to 6.63 +/- 1.51 mm preoperatively. The average closure for the healthy side was from 11.20 +/- 3.11 mm to 0.0 +/- 0.0 mm preoperatively and from 12.70 +/- 1.95 mm to 0.0 +/- 0.0 mm postoperatively. In three cases, the resting tonus of the part of the gracilis muscle transplant around the eye had increased to an extent that muscle weakening became necessary. Temporalis muscle transposition and free functional muscle transplantation for reanimation of the eye and mouth at the same time are reliable methods for reconstructing eye closure, with clinically adequate results. Detailed analysis of the resulting facial movements led to an important improvement of the authors' operative techniques within the last few years. Thus, the number of secondary operative corrections could be significantly reduced. These qualitative and quantitative studies of the reconstructed lid movements by three-dimensional video analysis support the authors' clinical concept of temporalis muscle transposition being the first-choice method in adult patients with facial palsy. In children, free muscle transplantation is preferred for eye closure, so as not to interfere with the growth of the face by transposition of a masticatory muscle. In addition, a higher degree of central plasticity in children might be expected.
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Affiliation(s)
- Manfred Frey
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Medical University of Vienna, Austria.
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Navarro FA, So PTC, Nirmalan R, Kropf N, Sakaguchi F, Park CS, Lee HB, Orgill DP. Two-photon confocal microscopy: a nondestructive method for studying wound healing. Plast Reconstr Surg 2004; 114:121-8. [PMID: 15220579 DOI: 10.1097/01.prs.0000128374.20913.4b] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Two-photon confocal microscopy is a new technology useful in nondestructive analysis of tissue. The pattern generated from laser-excited autofluorescence and second harmonic signals can be analyzed to construct a three-dimensional, microanatomical, structural image. The healing of full-thickness guinea pig skin wounds was studied over a period of 28 days using two-photon confocal microscopy. Three-dimensional data were rendered from two-dimensional images and compared with conventional, en face, histologic sections. Two-photon confocal microscopy images show resolution of muscle, fascia fibers, collagen fibers, inflammatory cells, blood vessels, and hair. Although these images do not currently have the resolution of standard histology, the ability to noninvasively acquire three-dimensional images of skin promises to be an important tool in wound-healing studies.
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Affiliation(s)
- Fernando A Navarro
- Division of Plastic Surgery, Brigham and Women's Hospital, Boston, MA 02115, USA
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Aszmann OC, Korak KJ, Kropf N, Fine E, Aebischer P, Frey M. Simultaneous GDNF and BDNF application leads to increased motoneuron survival and improved functional outcome in an experimental model for obstetric brachial plexus lesions. Plast Reconstr Surg 2002; 110:1066-72. [PMID: 12198419 DOI: 10.1097/01.prs.0000020990.82332.43] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Motoneurons of the neonate rat respond to proximal axonal injury with morphologic and functional changes and ultimately with neuronal death. Recent studies showed that both glial cell-line-derived neurotrophic factor (GDNF) and brain-derived neurotrophic factor (BDNF) reduce induced degeneration of motoneurons after axotomy and avulsion. Whether rescued motoneurons are functionally intact has been argued. In the present investigation, the authors have used a proximal crush lesion of the brachial plexus in neonatal rats as the experimental model of neuronal injury. This allowed the authors to study the effects of trophic factor administration on injured motoneurons and the relationship between motoneuron survival and extremity function. Trophic factors were locally released by small polymer implants in a low-dose slow-release mode. Six groups of 10 animals were prepared: BDNF, GDNF, GDNF/BDNF, control, sham, and normals. The number of surviving motoneurons was determined by retrograde tracer techniques using Fluorogold and Fastblue. Extremity function was quantitatively evaluated with functional muscle testing at day 56. The results of this study demonstrate that trophic factors applied separately had no effect, whereas combined trophic factor application (GDNF/BDNF group) had a dramatic rescue effect on motoneuron survival as compared with the control groups, which also effected significantly greater strength. The authors conclude that a combination of trophic factors leads to enhanced motoneuron survival, with improved voluntary function as the animal enters adulthood so that exogenous trophic support of motoneurons might have a role in the treatment of all types of severe neonatal plexopathies, maintaining the viability of motoneurons until reconstructive surgery provides them with a pathway for regeneration and endogenous trophic support.
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Affiliation(s)
- Oskar C Aszmann
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Medical School, University of Vienna, Vienna, Austria.
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Meixner A, Haverkamp S, Wässle H, Führer S, Thalhammer J, Kropf N, Bittner RE, Lassmann H, Wiche G, Propst F. MAP1B is required for axon guidance and Is involved in the development of the central and peripheral nervous system. J Cell Biol 2000; 151:1169-78. [PMID: 11121433 PMCID: PMC2190583 DOI: 10.1083/jcb.151.6.1169] [Citation(s) in RCA: 153] [Impact Index Per Article: 6.4] [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] [Indexed: 11/22/2022] Open
Abstract
Microtubule-associated proteins such as MAP1B have long been suspected to play an important role in neuronal differentiation, but proof has been lacking. Previous MAP1B gene targeting studies yielded contradictory and inconclusive results and did not reveal MAP1B function. In contrast to two earlier efforts, we now describe generation of a complete MAP1B null allele. Mice heterozygous for this MAP1B deletion were not affected. Homozygous mutants were viable but displayed a striking developmental defect in the brain, the selective absence of the corpus callosum, and the concomitant formation of myelinated fiber bundles consisting of misguided cortical axons. In addition, peripheral nerves of MAP1B-deficient mice had a reduced number of large myelinated axons. The myelin sheaths of the remaining axons were of reduced thickness, resulting in a decrease of nerve conduction velocity in the adult sciatic nerve. On the other hand, the anticipated involvement of MAP1B in retinal development and gamma-aminobutyric acid C receptor clustering was not substantiated. Our results demonstrate an essential role of MAP1B in development and function of the nervous system and resolve a previous controversy over its importance.
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Affiliation(s)
- Arabella Meixner
- Institute of Biochemistry and Molecular Cell Biology, Vienna Biocenter, University of Vienna, A-1030 Vienna, Austria
| | - Silke Haverkamp
- Department of Neuroanatomy, Max-Planck-Institute for Brain Research, D-60528 Frankfurt, Germany
| | - Heinz Wässle
- Department of Neuroanatomy, Max-Planck-Institute for Brain Research, D-60528 Frankfurt, Germany
| | - Susanne Führer
- University of Veterinary Medicine, A-1210 Vienna, Austria
| | | | - Nina Kropf
- Neuromuscular Research Department, University of Vienna, A-1090 Vienna, Austria
| | - Reginald E. Bittner
- Neuromuscular Research Department, University of Vienna, A-1090 Vienna, Austria
| | - Hans Lassmann
- Institute for Brain Research, University of Vienna, A-1090 Vienna, Austria
| | - Gerhard Wiche
- Institute of Biochemistry and Molecular Cell Biology, Vienna Biocenter, University of Vienna, A-1030 Vienna, Austria
| | - Friedrich Propst
- Institute of Biochemistry and Molecular Cell Biology, Vienna Biocenter, University of Vienna, A-1030 Vienna, Austria
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