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Hom DB, Ostrander BT. Reducing Risks for Local Skin Flap Failure. Facial Plast Surg Clin North Am 2023; 31:275-287. [PMID: 37001930 PMCID: PMC10990621 DOI: 10.1016/j.fsc.2023.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
Local tissue flaps are a fundamental technique in cutaneous reconstruction. Reducing the risk of flap failure is of critical importance. The intrinsic vascularity of a flap is the most important determinant of success. Good surgical techniques, including flap design, delicate tissue handling, and tension-less closure, help reduce the risk of flap compromise. Determining the etiology of compromise, including arterial, venous, hematologic, or infectious, is the first step in salvaging a failing flap. Common causes include pedicle kinking, hematoma, pressure/tension, systemic patient factors, and poor surgical technique. Swift action to restore perfusion or venous outflow through numerous strategies is required.
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Affiliation(s)
- David B Hom
- Department of Otolaryngology-Head and Neck Surgery, University of California San Diego, 9300 Campus Point Drive, MC 7895, La Jolla, CA 92037-7895, USA.
| | - Benjamin T Ostrander
- Department of Otolaryngology-Head and Neck Surgery, University of California San Diego, 9300 Campus Point Drive, MC 7895, La Jolla, CA 92037-7895, USA
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Reis TG, Silva RAWPD, Nascimento EDS, Bessa JD, Oliveira MC, Fava AS, Lehn CN. Early postoperative serum albumin levels as predictors of surgical outcomes in head and neck squamous cell carcinoma. Braz J Otorhinolaryngol 2022; 88 Suppl 1:S48-S56. [PMID: 33875388 PMCID: PMC9734270 DOI: 10.1016/j.bjorl.2021.03.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 02/27/2021] [Accepted: 03/10/2021] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Malnutrition is a common issue in patients with head and neck squamous cell carcinoma and has a negative effect on surgical outcomes. OBJECTIVE We attempted to determine which malnutrition diagnostic variables can be used as predictors of postoperative complications in patients with head and neck squamous cell carcinoma. METHODS Forty-one patients undergoing surgery for head and neck squamous cell carcinoma were submitted to a prospective evaluation. Biochemical data, anthropometric measurements and evaluation of body composition were used in the nutritional analysis. RESULTS Twenty-two patients (53.6%) developed complications. Serum albumin measured on the first postoperative day was the only variable that significantly differed between groups. A cut-off value of 2.8 g/dL distinguished between patients with a complicated and uncomplicated postoperative course. Normalization of albumin levels occurred more frequently and more rapidly in the noncomplicated group. CONCLUSION Serum albumin measured on the first postoperative day was the only variable that was a predicter of postoperative complications after major head and neck squamous cell carcinoma surgery.
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Affiliation(s)
- Tercio Guimarães Reis
- Instituto de Assistência Médica ao Servidor Público Estadual, Pós-graduação em Ciências da Saúde, São Paulo, SP, Brazil; Santa Casa de Misericórdia de Feira de Santana, Feira de Santana, BA, Brazil.
| | | | | | - José de Bessa
- Universidade Estadual de Feira de Santana (UEFS), Departamento de Saúde, Feira de Santana, BA, Brazil
| | - Márcio Campos Oliveira
- Universidade Estadual de Feira de Santana (UEFS), Departamento de Saúde, Feira de Santana, BA, Brazil
| | - Antônio Sérgio Fava
- Hospital do Servidor Público Estadual Francisco Morato de Oliveira, Departamento de Cirurgia de Cabeça e Pescoço, São Paulo, SP, Brazil
| | - Carlos Neutzling Lehn
- Instituto de Assistência Médica ao Servidor Público Estadual, Pós-graduação em Ciências da Saúde, São Paulo, SP, Brazil; Hospital do Servidor Público Estadual Francisco Morato de Oliveira, Departamento de Cirurgia de Cabeça e Pescoço, São Paulo, SP, Brazil
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Yang M, Zhang J, Shi W, Zhang J, Tao C. Recent advances in metal-organic frameworks and their composites for the phototherapy of skin wounds. J Mater Chem B 2022; 10:4695-4713. [PMID: 35687028 DOI: 10.1039/d2tb00341d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Wound healing is a complex process that greatly affects the normal physiological activities of genes, proteins, signaling pathways, tissues, and organs. Bacterial infection could easily lead to serious tissue damage during wound healing, thus countering wound infections becomes a major challenge for clinicians and nursing professionals. At present, the exploration of highly effective, low toxicity and environment friendly methods for wound healing is attracting considerable interest all over the world. Recently, metal-organic frameworks (MOFs) have presented great potential for treating wound infections due to their unique characteristics of diversified functionality, large specific surface area, and high biocompatibility. These properties endow MOFs/MOF-based composites with an outstanding anti-wound infection effect, which is mainly attributed to the continuously released active components and the exerted catalytic activity with the assistance of phototherapy. In this review, the current progress of MOFs/MOF-based composites for the phototherapy of skin wounds is presented. Firstly, we illustrate the pathophysiological mechanisms, principles of phototherapy and the conventional methods for wound healing. Then, the structures and characteristics of MOFs are systematically summarized. Moreover, the review highlights the recent advances in the application of phototherapy for wound healing (including photodynamic therapy, photothermal therapy, and synergistic therapy) based on various MOFs/MOF-based composites. Finally, the challenges and perspectives are provided for the further development of MOF-based materials for medical application.
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Affiliation(s)
- Mei Yang
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu 610041, P. R. China.
| | - Jin Zhang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Wu Shi
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu 610041, P. R. China.
| | - Jie Zhang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Chuanmin Tao
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu 610041, P. R. China.
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Yazdani J, Hajizadeh S, Ghavimi MA, Pourghasem Gargari B, Nourizadeh A, Kananizadeh Y. Evaluation of changes in anthropometric indexes due to intermaxillary fixation following facial fractures. J Dent Res Dent Clin Dent Prospects 2016; 10:247-250. [PMID: 28096951 PMCID: PMC5237672 DOI: 10.15171/joddd.2016.039] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Accepted: 11/06/2016] [Indexed: 11/16/2022] Open
Abstract
Background. One of the treatment modalities for facial fractures is closed reduction technique, but treatment with intermaxillary fixation (IMF) interferes with normal nutrition, and malnutrition can affect the patient’s recovery. Anthropometric measurements such as skinfold thickness and body mass index (BMI) are universal indexes for diagnosing malnutrition. Therefore, in this study we explain how treatment with IMF changes the anthropometric indexes. Methods. In this study 60 patients were treated with 4 weeks of IMF. Skinfold thickness and BMI of these patients were measured and compared before and after the treatment. Results. Patients’ weight, BMI and skinfold thickness decreased during the IMF period, and this decrease was statistically significant (P < 0.01). Conclusion. Although no severe and acute malnutrition was seen among our patients, IMF led to mild to moderate malnutrition in some cases, making it necessary to use nutritional supplements.
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Affiliation(s)
- Javad Yazdani
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saeed Hajizadeh
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Ali Ghavimi
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Amin Nourizadeh
- Department of Prosthodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Yousef Kananizadeh
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
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Tight Glycemic Control With Insulin Does Not Affect Skeletal Muscle Degradation During the Early Postoperative Period Following Pediatric Cardiac Surgery. Pediatr Crit Care Med 2015; 16:515-21. [PMID: 25850865 PMCID: PMC4497866 DOI: 10.1097/pcc.0000000000000413] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
OBJECTIVE Critical illness is associated with significant catabolism, and persistent protein loss correlates with increased morbidity and mortality. Insulin is a potent anticatabolic hormone; high-dose insulin decreases skeletal muscle protein breakdown in critically ill pediatric surgical patients. However, insulin's effect on protein catabolism when given at clinically utilized doses has not been studied. The objective was to evaluate the effect of postoperative tight glycemic control and clinically dosed insulin on skeletal muscle degradation in children after cardiac surgery with cardiopulmonary bypass. DESIGN Secondary analysis of a two-center, prospective randomized trial comparing tight glycemic control with standard care. Randomization was stratified by study center. PATIENTS Children 0-36 months who were admitted to the ICU after cardiac surgery requiring cardiopulmonary bypass. INTERVENTIONS In the tight glycemic control arm, insulin was titrated to maintain blood glucose between 80 and 110 mg/dL. Patients in the control arm received standard care. Skeletal muscle breakdown was quantified by a ratio of urinary 3-methylhistidine to urinary creatinine. MEASUREMENTS AND MAIN RESULTS A total of 561 patients were included: 281 in the tight glycemic control arm and 280 receiving standard care. There was no difference in 3-methylhistidine to creatinine between groups (tight glycemic control, 249 ± 127 vs standard care, 253 ± 112, mean ± SD in μmol/g; p = 0.72). In analyses restricted to the patients in tight glycemic control arm, higher 3-methylhistidine to creatinine correlated with younger age, as well as lower weight, weight-for-age z score, length, and body surface area (p < 0.005 for each) and lower postoperative day 3 serum creatinine (r = -0.17; p = 0.02). Sex, prealbumin, and albumin were not associated with 3-methylhistidine to creatinine. During urine collection, 245 patients (87%) received insulin. However, any insulin exposure did not impact 3-methylhistidine to creatinine (t test, p = 0.45), and there was no dose-dependent effect of insulin on 3-methylhistidine to creatinine (r = -0.03; p = 0.60). CONCLUSION Although high-dose insulin has an anabolic effect in experimental conditions, at doses necessary to achieve normoglycemia, insulin appears to have no discernible impact on skeletal muscle degradation in critically ill pediatric cardiac surgical patients.
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Lee L, Ker J, Quah BL, Chou N, Choy D, Yeo TT. A retrospective analysis and review of an institution's experience with the complications of cranioplasty. Br J Neurosurg 2013; 27:629-35. [DOI: 10.3109/02688697.2013.815313] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Kawai H, Ota H. Low perioperative serum prealbumin predicts early recurrence after curative pulmonary resection for non-small-cell lung cancer. World J Surg 2013; 36:2853-7. [PMID: 22948197 DOI: 10.1007/s00268-012-1766-y] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Early recurrence after surgery for non-small-cell lung cancer (NSCLC) is often observed in spite of pathologically proven early-stage disease. The aim of this study was to identify biomarkers that might be useful in predicting postoperative early recurrence of lung cancer. In this study we evaluated the perioperative nutritional status of the patients by measuring the serum level of prealbumin and analyzed the correlation between this factor and early recurrence. METHODS Forty-four patients with NSCLC were enrolled in the study. Serum level of prealbumin was measured 5 days before and 7 days after surgery, respectively. RESULTS For the patients who developed early recurrence, the perioperative serum prealbumin level was statistically significantly lower than those of the patients who did not develop recurrence (p<0.05). Furthermore, the patients with low prealbumin level showed statistically significantly poorer outcomes compared with the patients with higher prealbumin level (p<0.001). On the other hand, there was no correlation between the pathological stage and the serum prealbumin level. Multivariate analysis revealed that low perioperative serum prealbumin level could be an independent prognostic factor of poor outcome (hazard ratio, 10.1; 95% confidence interval, 2.8-35.5; p=0.0003). CONCLUSIONS Low serum prealbumin level in the perioperative period is associated with a poorer prognosis in NSCLC patients and could serve as a marker for identifying patients at high risk, even at an early clinical stage.
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Affiliation(s)
- Hideki Kawai
- Department of Thoracic Surgery, Akita Red Cross Hospital, 222-1 Naeshirosawa, Saruta, Kamikitate, Akita, 010-1495, Japan.
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Lockman JL, Iskander AJ, Bembea M, Crawford TO, Lederman HM, McGrath-Morrow S, Easley RB. Anesthetic and perioperative risk in the patient with Ataxia-Telangiectasia. Paediatr Anaesth 2012; 22:256-62. [PMID: 22098343 DOI: 10.1111/j.1460-9592.2011.03739.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVES/AIM To report our relatively large experience with perioperative care for patients with Ataxia-Telangiectasia (A-T) and to identify the nature and frequency of complications. BACKGROUND Ataxia-Telangiectasia is a rare autosomal recessive genetic disorder resulting in progressive multisystem degeneration and characteristic findings including complex neurodegeneration, immunodeficiency, increased risk of malignancy, and lung disease. Anecdotal reports have suggested high perioperative morbidity in patients with A-T, but few data exist. METHODS/MATERIALS The Ataxia-Telangiectasia Clinical Center database was cross-referenced with operative records between 1995 and 2009 to identify patients with perioperative A-T, and medical records were reviewed for preoperative history, management techniques, and complications. RESULTS Twenty-one patients with A-T underwent 34 anesthetics during the study period. The median age was 12.5 years (range 6-33 years). Common comorbidities included neurologic (100%), pulmonary (68%), immunologic (50%), oncologic (47%), and gastroenterologic (35%) disorders. Supplemental oxygen was required on postanesthesia care unit discharge for 24% of patients with a maximal duration of 24 h. Although mild postoperative hypothermia was relatively common (44% of anesthetics), there were no major complications, no unplanned admissions, and no mortality in this series. CONCLUSIONS Although limited by its retrospective nature, this is the first series describing perioperative risk for patients with A-T. Our results indicate that general anesthesia, airway manipulation, and perioperative mechanical ventilation may be tolerated with only minor postoperative anesthetic concerns. Perioperative providers should be aware of the complex multisystem medical concerns that may arise in these patients.
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Affiliation(s)
- Justin L Lockman
- Department of Anesthesiology and Critical Care Medicine, The Johns Hopkins Hospital, Baltimore, MD, USA
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Post-operative complications with titanium mesh. J Clin Neurosci 2009; 16:1080-1. [DOI: 10.1016/j.jocn.2008.07.087] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2008] [Revised: 07/15/2008] [Accepted: 07/24/2008] [Indexed: 11/18/2022]
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López Hellín J, Baena-Fustegueras JA, Sabín-Urkía P, Schwartz-Riera S, García-Arumí E. Nutritional modulation of protein metabolism after gastrointestinal surgery. Eur J Clin Nutr 2007; 62:254-62. [PMID: 17375114 DOI: 10.1038/sj.ejcn.1602732] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND The metabolic response to surgery includes alterations in protein metabolism, resulting in a net loss of proteins. Protein hypercatabolism is considered an unavoidable consequence of injury, and an important source of morbidity and mortality. Our purpose was to determine the effect of nutrition on protein metabolism following gastrointestinal surgery, and to elucidate whether postoperative protein loss can be prevented with adequate nutritional support. METHODS Patients who had undergone gastrointestinal surgery were given four different parenteral nutritions with increasing glucose, lipid and amino acid content during the 7 days following surgery. Nitrogen balance, protein synthesis and protein breakdown were determined using in vivo stable isotope labelling. Other metabolites (3-methylhistidine, creatinine, urea, cortisol, glucose, insulin, amino acids and C-reactive protein) were measured. RESULTS A nutrition-dependent alteration of protein metabolism was found in response to surgical injury. Nutrition modified nitrogen balance, whole-body protein breakdown and, to a lesser extent, whole-body protein synthesis and muscle protein breakdown. The low-energy parenteral nutrition without amino acids produced a negative nitrogen balance (postoperative day 7=-0.381 g protein kg(-1)day(-1)) and important alterations in postoperative protein metabolism that did not normalize during the study period (day 7 protein synthesis=239% and protein breakdown 217% vs preoperative). Patients receiving the two low energy parenteral nutritions containing amino acids had a less negative nitrogen balance (day 7=-0.011 and -0.133 g protein kg(-1)day(-1)) and a transient increase in protein metabolism. The complete parenteral nutrition maintained, during all studied days, protein metabolism parameters within the preoperative reference range (synthesis day 2=92%, day 4=110% day 7=79%; breakdown day 2=85%, day 4=80%, day 7=76% vs preoperative) and a positive nitrogen balance (day 2=+0.0387, day 4=+0.578 and day 7=+0.227 g protein kg(-1)day(-1)). CONCLUSION Complete nutritional support can prevent protein loss after gastrointestinal surgery and maintain protein metabolism without alterations.
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Affiliation(s)
- J López Hellín
- IBBIM-Institut de Recerca, Hospital Vall d'Hebron, Barcelona, Spain.
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Abstract
PURPOSE OF REVIEW Aberrant wound healing results in unsightly scar, hypertrophic scar, and keloid formation, causing functional and cosmetic deformities, discomfort, psychological stress, and patient dissatisfaction. Scar prevention and management, both surgical and nonsurgical, continue to be important issues for the otolaryngologist. RECENT FINDINGS Both animal and human models continue to point to the integral role of transforming growth factor-beta in aberrant healing. Multiple extracts have promising results as therapies for scarring and are widely marketed but need to be further investigated. Scar prevention advancements include refinements in surgical technique, nutritional supplementation, and optimal wound care. Steroid injections continue to play a major role in the regression of scars and keloids. Dermatography assists in the minimization of scar appearance. Dermatography, laser therapies, intralesional 5-fluorouracil, and adjuvant radiotherapy are emerging therapies. Topical vitamin E utility is revisited. New surgical scar revision techniques include modified excision techniques and skin grafting. SUMMARY Despite optimal efforts to avoid scar formation, aberrant wound healing may occur. The use of topical agents and intralesional steroid injections can minimize early scar formation. Strategies for prevention and management of keloids and hypertrophic scars continue to develop, as the basic science mechanisms underlying aberrant wound healing are elucidated.
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Affiliation(s)
- Margaret A Chen
- Department of Surgery, Division of Head and Neck Surgery, School of Medicine, University of California-San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
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Brown SA, Coimbra M, Coberly DM, Chao JJ, Rohrich RJ. Oral Nutritional Supplementation Accelerates Skin Wound Healing: A Randomized, Placebo-Controlled, Double-Arm, Crossover Study. Plast Reconstr Surg 2004; 114:237-44. [PMID: 15220599 DOI: 10.1097/01.prs.0000128818.28425.52] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Nutritional therapy is critical for wound healing in people with severe malnutrition or specific metabolic deficiencies. Medical claims from manufacturers of many oral supplements are marketed to surgical patients for decreasing edema, bruising, and discomfort. The effect of supplementing nutrients on soft-tissue wound healing in otherwise normal, healthy adults is an area of clinical importance, but little information is available. Proteolytic enzymes have been reported to moderate the inflammatory cycle and may up-regulate the healing process. The goal of this study was to perform a clinical trial in normal, healthy adults that examined the effects of an oral nutritional supplement (InflammEnz, Enzymes, Inc., Parkville, Mo.) on soft-tissue healing times. Twenty-six normal, healthy volunteers were recruited into a randomized, crossover, placebo-controlled, clinical trial consisting of two phases, each lasting 21 days. In phase I, subjects were subjected to a 3-mm forearm skin biopsy and randomly received a placebo or oral supplement (four capsules per day for 7 days). After a 2-week washout period, a second biopsy was performed to start phase II, with each subject receiving the respective placebo or supplement capsules. Digital photographs were taken during wound healing in both phases and analyzed for wound areas (in square millimeters) and perimeters (in millimeters). Twenty-two subjects completed the clinical trial. On the basis of wound surface areas, 17 subjects had improved wound healing and five subjects did not respond or responded only slightly to the supplement treatment. The mean +/- SD healing time of the subjects responding to supplement-treated wounds was 15 +/- 2.2 days, compared with 18 +/- 2.5 days for the placebo group. The 17 percent acceleration of wound-healing time was significant (p < 0.005). In subjects responding to oral supplements, less redness in the wounds was observed that may have been associated with less inflammation. The authors' results demonstrate that InflammEnz oral supplementation accelerated soft-tissue wound healing in 77 percent of normal, healthy subjects studied. The authors' study validates observations made that this supplement modulates the wound-healing process and suggests that many patients with minor soft-tissue wounds may benefit from treatment.
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Affiliation(s)
- Spencer A Brown
- Nancy L. and Perry Bass Advanced Wound Healing and Tissue Regeneration Laboratory, Department of Plastic Surgery, University of Texas Southwestern Medical Center, Dallas, 75390, USA
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Abstract
The nutritional status of the patient is integral to the care of the patient. Nutritional assessment and management begins with the initial patient contact and continues into the postoperative period.
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Affiliation(s)
- Roger S Badwal
- School of Dental Medicine, University of Connecticut, 263 Farmington Avenue, Farmington, CT 06030-1720, USA
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Weninger SC, Muglia LJ, Jacobson L, Majzoub JA. CRH-deficient mice have a normal anorectic response to chronic stress. REGULATORY PEPTIDES 1999; 84:69-74. [PMID: 10535410 DOI: 10.1016/s0167-0115(99)00070-1] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Many studies have implicated corticotropin-releasing hormone (CRH) as a mediator of stress-induced decreases in food intake. However, urocortin, sauvagine, and urotensin, other members of the family of CRH-like molecules, have also been shown to be potent inhibitors of food intake. This raises the possibility that a CRH-related molecule might also be responsible for stress-induced anorexia. We therefore examined the effects of three chronic stressors, repetitive daily restraint, turpentine abscess, and surgical stress, upon food intake in wildtype and CRH-deficient mice created by targeted inactivation of the CRH gene. We have found that both genotypes have similar basal food intake which initially decreases to the same degree following initiation of each stress paradigm. Food intake also recovers following the same time course and to the same degree in both genotypes. Therefore, CRH is not necessary for decreases in food-intake induced by the chronic stressors examined in this study.
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Affiliation(s)
- S C Weninger
- Program in Neuroscience, Howard Hughes Medical Institute, Harvard Medical School, Boston, MA 02115, USA
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Ziccardi VB, Bergen-Shapiro M. Metabolic and Nutritional Aspects of Facial Trauma. Oral Maxillofac Surg Clin North Am 1998. [DOI: 10.1016/s1042-3699(20)30296-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Kiy AM. NUTRITION IN WOUND HEALING. Nurs Clin North Am 1997. [DOI: 10.1016/s0029-6465(22)02696-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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