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https://www.readbyqxmd.com/read/29719911/proper-choice-of-vessels-for-supermicrosurgery-training-an-experimental-animal-study
#1
Yooseok Ha, Seung Han Song, Nak Heon Kang, Sang-Ha Oh
BACKGROUND:  Reconstruction using supermicrosurgery, a technique of microneurovascular anastomosis for smaller vessels (< 0.8 mm), has become popular. Experimental animal studies for supermicrosurgery training have been reported; however, there have been few studies performed according to vessel diameter and pedicle length. In this study, the external diameters of four vessels (femoral, superficial epigastric, axillary, and common thoracic) and pedicle length of two flaps (superficial epigastric and common thoracic-long thoracic) were measured...
May 2, 2018: Journal of Reconstructive Microsurgery
https://www.readbyqxmd.com/read/29693259/a-comparison-of-pectoral-fin-ray-morphology-and-its-impact-on-fin-ray-flexural-stiffness-in-labriform-swimmers
#2
Brett R Aiello, Adam R Hardy, Chery Cherian, Aaron M Olsen, Courtney P Orsbon, Melina E Hale, Mark W Westneat
The organization of tissues in appendages often affects their mechanical properties and function. In the fish family Labridae, swimming behavior is associated with pectoral fin flexural stiffness and morphology, where fins range on a continuum from stiff to relatively flexible fins. Across this diversity, pectoral fin flexural stiffness decreases exponentially along the length of any given fin ray, and ray stiffness decreases along the chord of the fin from the leading to trailing edge. In this study, we examine the morphological properties of fin rays, including the effective modulus in bending (E), second moment of area (I), segmentation, and branching patterns, and their impact on fin ray stiffness...
April 25, 2018: Journal of Morphology
https://www.readbyqxmd.com/read/29616160/reconstruction-of-anterior-neck-scar-contracture-using-a-perforator-supercharged-transposition-flap
#3
Yoshihiro Noda, Hiroaki Kuwahara, Maya Morimoto, Rei Ogawa
Reconstruction of the anterior neck requires attention to both aesthetic and functional outcomes. In general, skin grafts are not suitable for anterior neck reconstruction in Asian patients, even when artificial dermis is used before skin grafting. Therefore, we have employed various types of thin flaps for anterior neck reconstruction, including the cervico-pectoral flap. However, we have realized that, to fully release neck contractures and therefore achieve the full range of neck extension, the skin pedicle must be sufficiently wide...
February 2018: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/29594336/a-rare-case-of-atypical-thoracodorsal-artery-a-challenge-for-flap-reconstruction
#4
Naveen Kumar, Ashwini P Aithal, Satheesha B Nayak, Ravi Bhaskar
The thoracodorsal artery mainly supplies the latissimus dorsi muscle. Anatomical details pertaining to the origin and distribution of thoracodorsal artery are important because the latissimus dorsi myocutaneous flap is one of the most reliable and versatile flaps used in reconstructive surgery. Atypical origin and course of the thoracodorsal artery is, therefore, a challenge for flap reconstruction surgeries. In the present case, we report multiple variations in the branching pattern of axillary artery. The thoracodorsal artery had an unusual origin from the second part of axillary artery...
March 29, 2018: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29577940/vascular-architecture-in-free-flaps-analysis-of-vessel-morphology-and-morphometry-in-murine-free-flaps
#5
Andreas Max Pabst, Peer Wolfgang Kämmerer, Maximilian Krüger, Lukas Jäger, Maximilian Ackermann
The aim of this study was to analyze the development of vascular architecture as well as vascular morphometry and morphology of anastomosed microvascular free flaps. Free pectoral skin flaps were raised in 25 rats and anastomosed to the femoral vessels in the groin region. CD31 immunohistology was performed after 3, 7 and 12 d (each 5 animals each) to analyze microvessel density (MVD), microvessel area (MVA) and microvessel size (MVS). Microvascular corrosion casting was performed after 7 and 12 d (5 animals each) to analyze vessel diameter (VD), intervascular distance (IVD), interbranching distance (IBD), and branching angle (BA)...
July 2018: Microvascular Research
https://www.readbyqxmd.com/read/29355388/muscle-structure-and-gene-expression-in-pectoralis-major-muscle-in-response-to-deep-pectoral-myopathy-induction-in-fast-and-slow-growing-commercial-broilers
#6
S Yalcin, K Şahin, M Tuzcu, G Bilgen, S Özkan, G T Izzetoğlu, R Işik
1. The objective of this study was to determine muscle structure and gene expression in pectoralis major (p. major) muscle of broilers in response to deep pectoral myopathy (DPM) induction. 2. A total of 160 chickens from slow- and fast-growing broilers were raised under same conditions. Half of the broilers from each strain were encouraged to wing flap when they reached 2800 g body weight. Pectoralis minor (p. minor) muscle of the broilers was inspected for the occurrence of DPM and p. major samples were collected from broilers with or without DPM...
February 19, 2018: British Poultry Science
https://www.readbyqxmd.com/read/29346711/early-assessment-of-post-surgical-outcomes-with-pre-pectoral-breast-reconstruction-a-literature-review-and-meta-analysis
#7
Abhishek Chatterjee, Maurice Y Nahabedian, Allen Gabriel, David Macarios, Mousam Parekh, Fang Wang, Leah Griffin, Steven Sigalove
BACKGROUND: Pre-pectoral breast reconstruction is an emerging surgical approach. This study provides an early assessment of outcomes with the technique. METHODS: A comprehensive literature review was performed through searches of PubMed® /MEDLINE® to identify studies on pre-pectoral reconstruction. Patient characteristics and outcomes were extracted from studies and pooled. Linear relationships between complication rates and patient characteristics with pre-pectoral reconstruction were analyzed...
January 18, 2018: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29187757/the-role-of-laryngectomy-in-locally-advanced-thyroid-carcinoma-review-of-16-cases
#8
A I Chala, S Vélez, A Sanabria
Locally advanced disease with larynx invasion is a challenge to the surgeon, but laryngectomy is almost never necessary in thyroid carcinoma. The aim of this study was to review the clinical outcomes of patients with locally advanced thyroid carcinoma invading the larynx who underwent laryngectomy. A case series of patients treated in a tertiary care hospital was reviewed. Data about the type of operation, method of reconstruction, complications and overall survival of 16 patients operated on between 2002 and 2015 with larynx invasion is presented...
November 30, 2017: Acta Otorhinolaryngologica Italica
https://www.readbyqxmd.com/read/29162638/the-relationship-between-pectoral-fin-ray-stiffness-and-swimming-behavior-in-labridae-insights-into-design-performance-and-ecology
#9
Brett R Aiello, Adam R Hardy, Chery Cherian, Aaron M Olsen, Sihyun E Ahn, Melina E Hale, Mark W Westneat
The functional capabilities of flexible, propulsive appendages are directly influenced by their mechanical properties. The fins of fishes have undergone extraordinary evolutionary diversification in structure and function, which raises questions of how fin mechanics relate to swimming behavior. In the fish family Labridae, pectoral fin swimming behavior ranges from rowing to flapping. Rowers are more maneuverable than flappers, but flappers generate greater thrust at high speeds and achieve greater mechanical efficiency at all speeds...
January 9, 2018: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29150450/aerobic-power-and-flight-capacity-in-birds-a-phylogenetic-test-of-the-heart-size-hypothesis
#10
Roberto F Nespolo, César González-Lagos, Jaiber J Solano-Iguaran, Magnus Elfwing, Alvaro Garitano-Zavala, Santiago Mañosa, Juan Carlos Alonso, Jordi Altimiras
Flight capacity is one of the most important innovations in animal evolution; it only evolved in insects, birds, mammals and the extinct pterodactyls. Given that powered flight represents a demanding aerobic activity, an efficient cardiovascular system is essential for the continuous delivery of oxygen to the pectoral muscles during flight. It is well known that the limiting step in the circulation is stroke volume (the volume of blood pumped from the ventricle to the body during each beat), which is determined by the size of the ventricle...
January 9, 2018: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29075819/augmentation-mastopexy-with-a-dermal-encapsulated-round-or-anatomic-autoprosthesis
#11
Safvet Ors
INTRODUCTION: Several factors, such as aging, pregnancy, and weight loss, reduce the elasticity of the breast tissue, and ptosis occurs. Due to aging and gravity, it is not possible to completely prevent breast ptosis. The goal is to delay the recurrence of ptosis as much as possible. PATIENTS AND METHODS: This study included 20 female patients aged 25-55 years. The patients who underwent surgery had different levels of ptosis. Although the patients wanted their breasts to be lifted and an increase in projection, they did not want implants to be used...
February 2018: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/29066060/re-introducing-the-delto-acromial-perforator-flap-clinical-experience-and-cadaver-dissection
#12
Adrian S H Ooi, Daniel R Butz, Chad M Teven, Lawrence J Gottlieb
BACKGROUND: Although perforator flaps from the pectoral branch of the thoraco-acromial (TA) axis have been well-described, there are few reports of perforator flaps based on the delto-acromial (DA) branches. We have found a reliable perforator coming off the DA branch of the TA axis, and have named a flap based on this vessel the delto-acromial perforator (DAP) flap. We describe our experience with the DAP flap together with a fresh cadaver anatomical study. METHODS: A retrospective review of all DAP flaps performed between December 2012 and January 2015 at our institution, with analysis of operative details, flap characteristics and surgical outcomes...
March 2018: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/29062631/immediate-nipple-areolar-complex-reconstruction-for-patients-undergoing-implant-based-reconstruction-or-therapeutic-mammoplasty
#13
Lyndsey R Highton, John A Murphy
BACKGROUND: We report a technique of immediate nipple-areolar complex (NAC) reconstruction for patients undergoing skin-sparing mastectomy and implant-based breast reconstruction or therapeutic mammoplasty with central excision. METHODS: Immediate nipple reconstruction is performed using a modified C-V flap planned along the edge of the incision. The areola is reconstructed using a full-thickness skin graft taken from skin usually discarded during the procedure...
September 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28894664/aesthetic-female-to-male-chest-transformation-power-of-combining-modified-mastectomy-with-a-pectoral-implant
#14
Turkia Abbed, David A Shifrin
Gender reassignment surgery has gained in popularity with increased media exposure and society's recognition of gender dysphoria. Female-to-male gender reassignment often begins with the "top" or chest surgery. Mastectomy with free nipple grafting is the most frequently described technique in the literature. This technique is reliable yet lacks the ability to provide a true male chest shape. We discuss our technique for female-to-male "top" surgery combining traditional mastectomy techniques with a lower pole pedicle vascularized areola and a pectoral implant...
August 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28740779/using-the-venous-pectoral-branch-from-the-thoracoacromial-system-as-a-lifeboat-in-autologous-breast-reconstruction
#15
Michael Tarakji, Matthew J Bartow, Charles Dupin, Oren Tessler
The most common recipient vessels for autologous free flap breast reconstruction are the internal mammary vessels. At times, there are problems with the exposed internal mammary vein (IMV) that require other options such as using the contralateral IMV, superior rib resection to access proximal IMV, retrograde IMV use, and thoracodorsal vein access with or without a vein graft. This case demonstrates using the pectoral branch of the thoracoacromial venous system without a vein graft as a lifeboat option when the IMV is not suitable for anastomosis...
June 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28654558/the-efficacy-of-ultrasound-guided-type-ii-pectoral-nerve-blocks-in-perioperative-pain-management-for-immediate-reconstruction-after-modified-radical-mastectomy-a-prospective-randomized-study
#16
Kaiyuan Wang, Xiaobei Zhang, Tingting Zhang, Hui Yue, Shan Sun, Hongwei Zhao, Peng Zhou
OBJECTIVES: The pectoral nerves (Pecs) II block is a technique that places local anesthetic between the thoracic muscles to block the axillary and breast regions. This study aimed to compare the quality of perioperative analgesia and side effects of the Pecs II block under general anesthesia versus general anesthesia alone in immediate unilateral breast reconstruction with an implant and latissimus dorsi flap after modified radical mastectomy. MATERIALS AND METHODS: Sixty-four patients scheduled for immediate breast reconstruction after modified radical mastectomy were randomly allocated into the Pecs II block under general anesthesia group (group P, n=32) or the general anesthesia alone group (group G, n=32)...
March 2018: Clinical Journal of Pain
https://www.readbyqxmd.com/read/28570441/significance-of-the-lateral-thoracic-artery-in-pectoralis-major-musculocutaneous-flap-reconstruction-quantitative-assessment-of-blood-circulation-using-indocyanine-green-angiography
#17
Hidetaka Miyazaki, Kimihiro Igari, Toshifumi Kudo, Toshinori Iwai, Yoshitaka Wada, Yasuhiro Takahashi, Yoshinori Inoue, Shinichi Asamura
Free tissue transfer is the preferred reconstruction option in most major head and neck reconstructions. The pectoralis major muscle musculocutaneous (PMMC) flap is commonly used in salvage of necrotic free flaps and is the first choice for patients who are not candidates for free flaps. The lateral thoracic artery (LTA), which is thought to contribute to blood perfusion of the inferior and lateral mammary area, is not preserved in a conventionally harvested PMMC flap. With regard to blood supply, it has been suggested that the LTA should be preserved, in addition to the pectoral branch of the thoracoacromial artery, when a skin island is designed in the lower chest to attain a pedicle length sufficient for head and neck reconstruction...
November 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28551896/-review-of-common-pathogens-in-the-bone-and-blood-cultures-and-antibiotic-treatment-in-patients-with-sternal-osteomyelitis
#18
Michal Benkler, Ori Shulman, Yoav Avrahamy, David Mendes, Yoav Arus, Ron Fishel, Amos Leviav, Dana Egozi
AIMS: This study concentrates on microbiological data collection of deep sternal wounds to delineate early and correct antibiotic therapy. BACKGROUND: Deep sternal wound infection, mediastinitis and sternal osteomyelitis are devastating and life-threatening complications of median-sternotomy incisions after cardiac surgical procedures. The incidence of surgical wound infection in sternotomies should be similar to that in any clean surgical procedure (i.e. approximately 2%)...
February 2017: Harefuah
https://www.readbyqxmd.com/read/28458765/right-ventricular-perforation-from-a-floating-rib-following-deep-sternal-wound-infection-debridement-and-application-of-a-vacuum-assisted-closure-device-a-case-report-and-literature-review
#19
Amanda J Ross, Nada N Berry
Introduction: Deep sternal wound infection following major cardiac surgery is a deleterious complication with sequelae that can be life threatening. The use of vacuum-assisted closure therapy in management of sternal wounds with resultant right ventricular rupture has been documented in the cardiothoracic and to a lesser extent in the reconstructive literature. Methods/Case Report: We present a case of a 67-year-old male patient who suffered from right ventricular perforation from a floating rib following debridement of a deep sternal wound infection and placement of a vacuum-assisted closure device...
2017: Eplasty
https://www.readbyqxmd.com/read/28434900/breast-cancer-in-a-pectoralis-major-myocutaneous-flap-used-for-the-reconstruction-of-tongue-cancer-a-case-report
#20
Eiji Hirai, Shunji Sarukawa, Kozo Yamamoto, Masahiro Okamoto
Breast cancers are the most common cancers in women. However, breast cancer occurring in a pectoralis major myocutaneous flap is extremely rare. This article describes a case of breast cancer occurring in such a flap used for reconstruction of the tongue in a 72-year-old woman. Follow-up computed tomogram depicted a slowly growing mass in the flap. Thirty-nine months postoperatively, a fine-needle aspiration biopsy specimen taken from the lesion suggested glandular carcinoma. The patient was diagnosed with breast cancer in the neck area of the flap and tumor excision was performed...
July 2017: Journal of Oral and Maxillofacial Surgery
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