keyword
MENU ▼
Read by QxMD icon Read
search

Free tissue transfer

keyword
https://www.readbyqxmd.com/read/29148120/mapping-brown-adipose-tissue-based-on-fat-water-fraction-provided-by-z-spectral-imaging
#1
Alessandro Scotti, Rong-Wen Tain, Weiguo Li, Victoria Gil, Chong Wee Liew, Kejia Cai
BACKGROUND: Brown adipose tissue (BAT) has a great relevance in metabolic diseases and has been shown to be reduced in obesity and insulin resistance patients. Currently, Dixon MRI is used to calculate fat-water fraction (FWF) and differentiate BAT from white adipose tissue (WAT). However, it may fail in areas of phase wrapping and introduce fat-water swapping artifacts. PURPOSE: To investigate the capacity of the Z-spectrum imaging (ZSI) for the identification of BAT in vivo...
November 17, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29137568/first-dorsal-metatarsal-artery-perforator-flap-to-cover-great-toe-defect
#2
Roongsak Limthongthang, Perajit Eamsobhana
BACKGROUND: There were very few options available for distal foot and toe defects that required a vascularized flap for coverage. As such, the use of a free flap was often justified in this region of the foot. The use of perforator flaps has created a new subset of local tissue transfer alternatives that increases the potential that the difficulties associated with microvascular tissue transfers could be avoided. The first dorsal metatarsal artery (FDMA) perforator flap was one variant of this new type of tissue transfer...
September 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/29131564/light-emitting-photon-upconversion-nanoparticles-in-the-generation-of-transdermal-reactive-oxygen-species
#3
Martin Prieto, Alina Rwei, Teresa Alejo, Wei Tuo, Maria Teresa Lopez-Franco, Gracia Mendoza, Victor Sebastian, Daniel S Kohane, Manuel Arruebo
Common photosensitizers used in photodynamic therapy do not penetrate the skin effectively. In addition, the visible blue and red lights used to excite such photosensitizers have shallow penetration depths through tissue. To overcome these limitations, we have synthesized ultraviolet and visible light emitting, energy-transfer based upconversion nanoparticles, and co-encapsulated them inside PLGA-PEG nanoparticles with photosensitizer protoporphyrin IX. Nd3+ has been introduced as sensitizer in the upconversion nanostructures to allow their excitation at 808 nm...
November 13, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29131450/potential-for-health-care-cost-savings-with-preoperative-gastrostomy-tube-placement-in-the-head-and-neck-cancer-population
#4
Ashley C Mays, Harrison G Bartels, Paul R Wistermayer, Matt L Rohlfing, Christopher M Gentile, Ralph D'Agostino, Joshua D Waltonen
BACKGROUND: The purpose of this study was to examine the cost differences between preoperative and postoperative placement of gastrostomy tubes (G-tubes) in patients with head and neck cancer. METHODS: We conducted a retrospective chart review of patients with aerodigestive tract cancers from 2010 to 2015. Data included inpatient and postdischarge costs, demographics, tumor characteristics, surgical treatment, length of stay (LOS), time spent in the intensive care unit (ICU), and readmissions...
November 13, 2017: Head & Neck
https://www.readbyqxmd.com/read/29128255/patients-experience-of-the-monitoring-of-free-flaps-after-reconstruction-for-oral-cancer
#5
H Nazir, D Lowe, S N Rogers
Regular monitoring of free flaps is essential after microvascular free tissue transfer, but the frequency and duration of the observations vary between units and there is no consensus nationally. Best practice can be informed by the feedback of patients, but as we know of no such studies, we did a cross-sectional survey of a consecutive group of patients after free tissue transfer to find out what they thought about monitoring. We designed a study-specific questionnaire after consultation with the patient and carer forum, and sent it to 150 patients who had had free tissue transfer in the maxillofacial department at Aintree University Hospital during 2015 and 2016...
November 8, 2017: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/29127507/influence-of-coupler-size-on-revision-rate-and-timing-of-revision-after-free-flap-tissue-transfer-in-the-head-and-neck
#6
Ulrich Kisser, Christine Adderson-Kisser, Philipp Baumeister, Maximilian Reiter
OBJECTIVE: Microvascular coupler devices have been proven an effective alternative to standard hand-sutured anastomoses in reconstructive surgery. Until now, the influence of the coupler size on the revision rate after free flap tissue transfer in head and neck surgery has not been investigated. Neither has its influence on the timing of venous revisions. MATERIALS AND METHODS: A retrospective mono-center cohort study was performed in order to analyze the influence of coupler size on timing and revision rate of microvascular procedures...
November 10, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29122486/trapezius-flaps-for-reconstruction-of-head-and-neck-defects-following-oncological-resection-a-systematic-review
#7
Conor M Sugrue, Grainne Rooney, Ryan M Sugrue
OBJECTIVE: Head and neck (H&N) reconstruction after cancer resection is challenging. Myocutaneous trapezius flaps provide an alternative reconstruction for patients not suitable for microvascular free tissue transfer. METHODS: A systematic review was performed on studies involving trapezius flaps for H&N reconstruction post oncological resection between the years 1985-2015. Data extracted included patient numbers and demographics, operative technique and complications...
October 10, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29119981/magnetic-bead-based-peptide-extraction-methodology-for-tissue-imaging
#8
William T Andrews, Susan B Skube, Amanda B Hummon
MALDI-TOF imaging mass spectrometry (IMS) is a common technique used for analyzing tissue samples, as it allows the user to detect multiple different analytes simultaneously. However, the detection and analysis of these analytes may sometimes be hampered due to the presence of contaminants in the tissue microenvironment, which leads to ion suppression. This challenge necessitates the development of an active extraction technique to selectively isolate analytes of interest without compromising their spatial localization within a tissue sample...
November 9, 2017: Analyst
https://www.readbyqxmd.com/read/29112999/use-of-incisional-negative-pressure-wound-therapy-in-skin-containing-free-tissue-transfer
#9
Hongda Bi, Mija Khan, Junhui Li, Ivo A Pestana
No abstract text is available yet for this article.
November 7, 2017: Journal of Reconstructive Microsurgery
https://www.readbyqxmd.com/read/29109898/limbal-stem-cell-deficiency-and-treatment-with-stem-cell-transplantation
#10
REVIEW
Özlem Barut Selver, Ayşe Yağcı, Sait Eğrilmez, Mehmet Gürdal, Melis Palamar, Türker Çavuşoğlu, Utku Ateş, Ali Veral, Çağrı Güven, Jose Mario Wolosin
The cornea is the outermost tissue of the eye and it must be transparent for the maintenance of good visual function. The superficial epithelium of the cornea, which is renewed continuously by corneal stem cells, plays a critical role in the permanence of this transparency. These stem cells are localized at the cornea-conjunctival transition zone, referred to as the limbus. When this zone is affected/destroyed, limbal stem cell deficiency ensues. Loss of limbal stem cell function allows colonization of the corneal surface by conjunctival epithelium...
October 2017: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/29108083/-pedicled-omentum-flaps-in-the-management-of-deep-sternal-wound-infections
#11
Nick Spindler, Christian Etz, Martin Misfeld, Christoph Josten, Michael Borger, Friedrich Wilhelm Mohr, Stefan Langer
Aim Coverage of a deep sternal wound infection with a greater omentum flap. Due to a persistent infection caused by an infected aortic prosthesis, the primarily performed reconstruction with a latissimus dorsi flap had to be revised, and an alternative solution had to be found. Indication A deep sternal wound infection is a rare but devastating complication following median sternotomy. If the commonly used muscle flap is not sufficient and artificial material is still present in the wound, for instant drivelines or a vascular prosthesis, the greater omentum flap is a useful option due to its immunologic capacity...
November 6, 2017: Zentralblatt Für Chirurgie
https://www.readbyqxmd.com/read/29103849/the-effect-of-skin-pigmentation-on-determination-of-limb-ischemia
#12
Elizabeth M Polfer, Ryan M Zimmerman, Eshetu Tefera, Ryan D Katz, James P Higgins, Kenneth R Means
PURPOSE: Timely identification of tissue ischemia is critical, both in the traumatized limb and following free tissue transfer. The purpose of this study was to determine if skin pigmentation affects the ability to detect limb ischemia. METHODS: We conducted a study of healthy controls exposed to limb ischemia. The subjects were classified based on skin pigmentation using a defined skin type assessment tool, a visual color scale, and self-description of race. Participants were randomized by limb and tourniquet status; surgeons were blinded to both...
November 2, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29096337/viability-of-permanent-pmma-spacer-with-combined-free-fasciocutaneous-tissue-transfer-for-failed-charcot-reconstruction-a-38-month-prospective-case-report
#13
Tammer Elmarsafi, John S Steinberg, Paul J Kim, Christopher E Attinger, Karen K Evans
INTRODUCTION: Charcot Neuroarthropathy is a complex lower extremity pathology which predisposes the afflicted limb to ulcerations, osteomyelitis, and risk of major amputation. Charcot Neuroarthropathy often requires osseous reconstruction, which can be complicated with osteomyelitis and hardware infection. When soft tissue and osseous deficits must be concomitantly addressed, the use of PMMA spacers can be combined with free tissue transfers. PRESENTATION OF CASE: 71year old Caucasian male with Diabetic Charcot Neuroarthopathy underwent osseous reconstruction with internal hardware...
October 4, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29090196/does-low-dose-heparin-have-a-significant-role-in-free-flap-surgery
#14
Mun-Young An, Jin Yong Shin, Young-Keun Lee, M Diya Sabbagh, Si-Gyun Roh, Nae-Ho Lee
BACKGROUND: It is controversial issue that heparin decreases thrombosis for microsurgical anastomosis, and its effective role is under discussion. This study is for proving whether low-dose heparin is preventing thrombosis in free flap reconstruction. METHODS: Through chart reviews of 134 patients, using low-dose heparin for free tissue transfer from 2011 to 2016, retrospective analysis was performed. 33 patients received low-dose heparin therapy after surgery. And 101 patients received no-heparin therapy...
September 2017: Arch Craniofac Surg
https://www.readbyqxmd.com/read/29080664/indications-and-controversies-for-nonabdominally-based-complete-autologous-tissue-breast-reconstruction
#15
REVIEW
Dries Opsomer, Koenraad van Landuyt
Autologous breast reconstruction can be challenging in mastectomy patients who are not eligible for a deep inferior epigastric artery perforator flap reconstruction. Depending on body habitus, alternative donor sites for free flap transfer can be found on the back, the thighs, and in the gluteal area. These alternative flaps can demand a higher level of expertise, which should be mastered by the modern day reconstructive microsurgeon. The flap choice should be tailored individually to each patient and should not be limited by the difficulty of the surgery...
January 2018: Clinics in Plastic Surgery
https://www.readbyqxmd.com/read/29075779/reconstruction-the-final-dimension-in-head-and-neck-surgery-the-2017-hayes-martin-lecture
#16
Mark K Wax
The Hayes Martin lecture is dedicated to a giant who was essential to developing the surgical management of patients with head and neck cancer. Since that time, advents in anesthesia, intensive care, and improved diagnostic abilities have improved our ability to surgically manage and treat head and neck cancer. The original paradigm of resection, reconstruction, and rehabilitation was formulated as we endeavored to develop paradigms of treatment for our patients. We have maximized our resective and reconstructive abilities...
October 26, 2017: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/29075160/osseointegrated-implants-and-prosthetic-reconstruction-following-skull-base-surgery
#17
REVIEW
Shirley Hu, Demetri Arnaoutakis, Sameep Kadakia, Allison Vest, Raja Sawhney, Yadranko Ducic
Rehabilitation following ablative skull base surgery remains a challenging task, given the complexity of the anatomical region, despite the recent advances in reconstructive surgery. Remnant defects following resection of skull base tumors are often not amenable to primary closure. As such, numerous techniques have been described for reconstruction, including local rotational muscle flaps, pedicled flaps with skin paddle, or even free tissue transfer. However, not all patients are appropriate surgical candidates and therefore may instead benefit from nonsurgical options for functional and aesthetic restoration...
November 2017: Seminars in Plastic Surgery
https://www.readbyqxmd.com/read/29075158/locoregional-and-microvascular-free-tissue-reconstruction-of-the-lateral-skull-base
#18
REVIEW
Demetri Arnaoutakis, Sameep Kadakia, Manoj Abraham, Thomas Lee, Yadranko Ducic
The goals of reconstruction following any oncologic extirpation are preservation of function, restoration of cosmesis, and avoidance of morbidity. Anatomically, the lateral skull base is complex and conceptually intricate due to its three-dimensional morphology. The temporal bone articulates with five other cranial bones and forms many sutures and foramina through which pass critical neural and vascular structures. Remnant defects following resection of lateral skull base tumors are often not amenable to primary closure...
November 2017: Seminars in Plastic Surgery
https://www.readbyqxmd.com/read/29075157/open-anterior-skull-base-reconstruction-a-contemporary-review
#19
REVIEW
Daniel Kwon, Alfred Iloreta, Brett Miles, Jared Inman
Skull base extirpative and reconstructive surgery has undergone significant changes due to technological and operative advances. While endoscopic resection and reconstruction will continue to advance skull base surgery for the foreseeable future, traditional open surgical approaches and reconstructive techniques are still contemporarily employed as best practices in certain tumors or patient-specific anatomical cases. Skull base surgeons should strive to maintain a working knowledge and technical skill set to manage these challenging cases where endoscopic techniques have previously failed, are insufficient from anatomical constraints, or tumor biology with margin control supersedes the more minimally invasive approach...
November 2017: Seminars in Plastic Surgery
https://www.readbyqxmd.com/read/29074589/abca1-derived-nascent-high-density-lipoprotein-apolipoprotein-ai-and-lipids-metabolically-segregate
#20
Bingqing Xu, Baiba K Gillard, Antonio M Gotto, Corina Rosales, Henry J Pownall
OBJECTIVE: Reverse cholesterol transport comprises cholesterol efflux from ABCA1-expressing macrophages to apolipoprotein (apo) AI, giving nascent high-density lipoprotein (nHDL), esterification of nHDL-free cholesterol (FC), selective hepatic extraction of HDL lipids, and hepatic conversion of HDL cholesterol to bile salts, which are excreted. We tested this model by identifying the fates of nHDL-[(3)H]FC, [(14)C] phospholipid (PL), and [(125)I]apo AI in serum in vitro and in vivo. APPROACH AND RESULTS: During in vitro incubation of human serum, nHDL-[(3)H]FC and [(14)C]PL rapidly transfer to HDL and low-density lipoproteins (t1/2=2-7 minutes), whereas nHDL-[(125)I]apo AI transfers solely to HDL (t1/2<10 minutes) and to the lipid-free form (t1/2>480 minutes)...
October 26, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
keyword
keyword
12457
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"