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https://www.readbyqxmd.com/read/29350692/control-and-optimisation-of-fluid-flow-in-glaucoma-drainage-device-surgery
#1
Kin Sheng Lim
Avoidance of hypotony in the early post-operative phase following glaucoma drainage device surgery is paramount, if serious complications are to be avoided. Current strategies of preventing early hypotony are either a valve mechanism, as those found in Ahmed Glaucoma Valve or flow restrictor as used in Baerveldt or Molteno implants. The Ahmed glaucoma valve has a pre-tensioned valve which opens and closes at the pre-determined level of intra-ocular pressure. Although the opening and closing pressure can be slightly inconsistent, coinciding with the change of material used in the plate construction, the reliability appears to have improved in recent years...
January 19, 2018: Eye
https://www.readbyqxmd.com/read/29350687/intraocular-currents-bernoulli-s-principle-and-non-drainage-scleral-buckling-for-rhegmatogenous-retinal-detachment
#2
D Wong, Y K Chan, T Bek, I Wilson, E Stefánsson
For many years, it is not fully understood how non-drainage scleral buckling surgery brings about spontaneous reattachment of the detached retina when retinal breaks remain open at the end of surgery. Various explanations have been put forward, but none more interesting than the effect of fluid currents associated with eye movements. One such explanation involved the physics of the Bernoulli's principle. Daniel Bernoulli was an eighteenth century Swiss mathematician and he described an equation based on the conservation of energy...
January 19, 2018: Eye
https://www.readbyqxmd.com/read/29350371/fundus-first-technique-and-partial-cholecystectomy-for-difficult-laparoscopic-cholecystectomies
#3
İsmail Cem Sormaz, Yiğit Soytaş, Ali Fuat Kaan Gök, İlker Özgür, Levent Avtan
BACKGROUND: This study aims to evaluate the impact of conversion from retrograde dissection to fundus-first technique (FF) or laparoscopic partial cholecystectomy (LPC) on complication rates, operation time, and duration of hospitalization. METHODS: The medical records of 210 consecutive patients who underwent laparoscopic cholecystectomy between January 2010 and December 2014 were retrospectively evaluated. All laparoscopic cholecystectomies were initiated with retrograde dissection (RD)...
January 2018: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/29345155/minimally-invasive-adrenal-surgery-virtue-or-vice
#4
Jared S Winoker, David T Ahlborn, Olamide O Omidele, Gustavo Fernandez-Ranvier, Ithaar H Derweesh, Reza Mehrazin
Adrenocortical carcinoma (ACC) is a rare malignancy associated with poor prognosis despite available treatments. In patients with localized or locally advanced disease, complete resection with negative margins offers the only potential for cure. Unfortunately, most patients develop local and distant recurrence following initial resection highlighting the importance of meticulous surgical technique in the hands of an experienced surgeon. While minimally invasive surgery (MIS) has supplanted open surgery for small to medium-sized benign adrenal tumors, controversy surrounds the use of MIS for resection of ACC...
January 18, 2018: Future Oncology
https://www.readbyqxmd.com/read/29340945/electromagnetic-induction-sensor-for-dynamic-testing-of-coagulation-process
#5
Zhe Wang, Yuanhua Yu, Zhanjiang Yu, Qimeng Chen
With the increasing demand for coagulation POCT for patients in the surgery department or the ICU, rapid coagulation testing techniques and methods have drawn widespread attention from scholars and businessmen. This paper proposes the use of electromagnetic induction sensor probe for detection of dynamic process causing changes in the blood viscosity and density before and after coagulation based on the damped vibration principle, in order to evaluate the coagulation status. Utilizing the dynamic principle, the differential equation of vibration system comprising elastic support and electromagnetic induction device is established through sensor dynamic modeling...
January 16, 2018: Australasian Physical & Engineering Sciences in Medicine
https://www.readbyqxmd.com/read/29340826/single-port-laparoscopic-surgery-in-uncomplicated-acute-appendicitis-a-randomized-controlled-trial
#6
Byung Mo Kang, Sung Il Choi, Bum-Soo Kim, Suk-Hwan Lee
BACKGROUND: Single-port laparoscopic surgery (SPLS) is an alternative, minimally invasive surgical approach for managing appendicitis. The aim of this randomized trial was to evaluate the safety and efficacy of SPLS in uncomplicated appendicitis. METHODS: Between December 2009 and November 2010, 194 patients with radiologically diagnosed acute appendicitis were randomly allocated to undergo either SPLS or multiport laparoscopic surgery (MPLS). Patients with intraoperative findings of perforated appendicitis were excluded from the analysis...
January 16, 2018: Surgical Endoscopy
https://www.readbyqxmd.com/read/29332231/stage-specific-therapeutic-strategies-of-medication-related-osteonecrosis-of-the-jaws-a-systematic-review-and-meta-analysis-of-the-drug-suspension-protocol
#7
REVIEW
Luca Ramaglia, Agostino Guida, Vincenzo Iorio-Siciliano, Alessandro Cuozzo, Andrea Blasi, Anton Sculean
OBJECTIVE: The most debated topic about medication-related osteonecrosis of the jaws (MRONJ) is its therapy, as there are no definitive guidelines. The aims of this systematic review were (a) to outline the best therapeutic approach according to the stage at diagnosis and (b) to perform a meta-analysis to assess whether the drug-holiday protocol may be or not an effective method in the management of MRONJ patients. MATERIALS AND METHODS: The systematic review was performed following the PRISMA principles...
January 13, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29332083/deep-brain-stimulation-interventional-and-intraoperative-mri-approaches
#8
Paul S Larson, Philip A Starr, Alastair J Martin
Interventional and intraoperative MRI approaches to deep brain stimulator implantation are relatively new, and in their purest form represent a distinct departure from traditional stereotactic techniques. They employ a novel means of stereotaxis based on regions of interest in the MR space and simple geometric principles, which eliminate the need for a stereotactic frame. This approach is appropriate for targets that are MR visible, and for whom the local anatomy and function are well characterized. It may also be appropriate for targets that do not have a well-described physiologic signature and for which clinical response to macrostimulation does not play a critical role...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29332078/magnetic-resonance-guided-high-intensity-focused-ultrasound-for-treating-movement-disorders
#9
Young Goo Kim, Eun Jung Kweon, Won Seok Chang, Hyun Ho Jung, Jin Woo Chang
Transcranial magnetic resonance-guided focused ultrasound (MRgFUS) surgery has recently gained favor as a novel, noninvasive alternative to conventional neurosurgery. In contrast to traditional ablative interventions, transcranial MRgFUS surgery is entirely imaging-guided and uses continuous temperature measurements at the target and surrounding tissue taken in real-time. Unlike Gamma Knife radiosurgery, MRgFUS surgery can make a lesion immediately and does not use ionizing radiation. Moreover, since no metallic device is implanted, MR imaging-based diagnosis is not restricted throughout life...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29329689/pediatric-obesity-current-concepts
#10
REVIEW
Donald E Greydanus, Marisha Agana, Manmohan K Kamboj, Saad Shebrain, Neelkamal Soares, Ransome Eke, Dilip R Patel
This discussion reflects on concepts of obesity in children and adolescents in the early 21st century. It includes reflections on its history, definition, epidemiology, diagnostic perspectives, psychosocial considerations, musculoskeletal complications, endocrine complications and principles of management. In addition to emphasis on diet and exercise, research and clinical applications in the second decade of the 21st century emphasize the increasing use of pharmacotherapy and bariatric surgery for adolescent and adult populations with critical problems of overweight and obesity...
January 9, 2018: Disease-a-month: DM
https://www.readbyqxmd.com/read/29327594/liver-resection-and-surgical-strategies-for-management-of-primary-liver-cancer
#11
Sonia T Orcutt, Daniel A Anaya
Primary liver cancer-including hepatocellular carcinoma (HCC) and intrahepatic cholangiocarcinoma (ICC)-incidence is increasing and is an important source of cancer-related mortality worldwide. Management of these cancers, even when localized, is challenging due to the association with underlying liver disease and the complex anatomy of the liver. Although for ICC, surgical resection provides the only potential cure, for HCC, the risks and benefits of the multiple curative intent options must be considered to individualize treatment based upon tumor factors, baseline liver function, and the functional status of the patient...
January 2018: Cancer Control: Journal of the Moffitt Cancer Center
https://www.readbyqxmd.com/read/29327275/-eyelid-surgery-principles-of-blepharoplasty-application-of-co2-lasers-aftercare-and-scar-revision
#12
EDITORIAL
U Schaudig
No abstract text is available yet for this article.
January 11, 2018: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/29325349/-introduction-and-interpretation-of-guidelines-on-thromboprophylaxis-in-the-perioperative-period-of-urological-surgery
#13
X Wang, Z Y Liu
Venous thromboembolism had drawn great attention of global experts, as it is the third leading cause of cardiovascular-associated death, ranking after coronary heart disease and stroke. Numerous health care organizations had introduced guidelines for thromboprophylaxis during the perioperative period in their own fields. The paper reviewed the available guidelines pertaining to urological surgery from America Urological Association, American College of Chest Physicians and European Association of Urology. Compared with the first two guidelines, the European Association of Urology guideline is a milestone which recommended the most detailed prophylactic measures for the procedure-specific and patient-specific according to the evidence-based medicine...
January 1, 2018: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/29318031/para-aortic-lymphadenectomy-in-advanced-stage-cervical-cancer-a-protocol-for-comparing-safety-feasibility-and-diagnostic-accuracy-of-surgical-staging-versus-pet-ct-paldisc-trial
#14
Casper Tax, Karin Abbink, Maroeska M Rovers, Ruud L M Bekkers, Petra L M Zusterzeel
Background: Currently, a PET-CT is used to assess the need for extended field radiotherapy of para-aortic lymph nodes (PALN) in International Federation of Gynaecology and Obstetrics (FIGO) stage IB2, IIA2-IVA (locally advanced stage) cervical cancer. A small study established a sensitivity and specificity estimate for PALN metastases of 50% (95% CI; 7-93%) and 83% (95% CI; 52-98%), respectively. Surgical staging of PALN may lead to a higher diagnostic accuracy. However, surgical staging of para-aortic lymph nodes in locally advanced stage cervical cancer is not common practice...
2018: Pilot and Feasibility Studies
https://www.readbyqxmd.com/read/29315649/current-principles-of-surgery-for-retroperitoneal-sarcomas
#15
REVIEW
Mark Fairweather, Ricardo J Gonzalez, Dirk Strauss, Chandrajit P Raut
Surgery for primary retroperitoneal sarcomas (RPS) often requires a technically challenging, en bloc multivisceral resection to optimize outcomes. Surgery may also be appropriate for patients with localized recurrent RPS. Anatomic considerations and tumor biology driven by histologic subtype may guide the extent of resection in patients with RPS. This review provides an overview of the current surgical principles for primary and recurrent RPS.
January 8, 2018: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29315128/parallel-proximal-fixation-in-rib-based-growing-rod-system-a-novel-approach-to-deal-with-proximal-anchor-migration
#16
John Heflin, Michelle Welborn, Norman Ramirez-Lluch, Ivan Iriarte, Ron El-Hawary, Graham T Fedorak, John T Smith
STUDY DESIGN: Retrospective case control OBJECTIVE.: To report on differences in implant failure rates and complications requiring reoperation in children with early-onset scoliosis (EOS) treated with rib-based distraction utilizing four proximal fixation points in either a parallel or in-line configuration. SUMMARY OF BACKGROUND DATA: Proximal anchor failure continues to be a significant problem in growth-friendly surgery using rib-based distraction to treat children with EOS...
January 8, 2018: Spine
https://www.readbyqxmd.com/read/29313380/an-on-top-plasty-reconstruction-for-complicated-radial-polydactyly
#17
Brian P Kelley, Carrie Kubiak, Kevin C Chung
BACKGROUND: The clinical presentation of radial polydactyly can vary greatly. Careful planning and appreciation of the anatomic subtleties provides alternative surgical options to improve patient outcomes. METHODS: We present a case of a well-formed accessory web space thumb and a hypoplastic primary thumb. RESULTS: Rather than excising the accessory digit, we performed a spare-part, on-top-plasty reconstruction to replace the diminutive distal phalanx of the primary thumb...
January 1, 2018: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/29313128/-surgical-strategies-for-non-metastatic-adrenocortical-carcinoma
#18
REVIEW
N Rayes, M Quinkler, T Denecke
Adrenocortical carcinomas (ACC) are rare but highly aggressive tumors. It is very difficult to differentiate small locally limited ACCs from benign adenomas. A spontaneous density >10 Hounsfield units in non-enhanced CT scan and a slow washout after contrast injection are suspicious of malignancy but with a low specificity. Preoperatively, a hormonal work-up is mandatory for all adrenal tumors. Each patient should be discussed in an interdisciplinary board. For non-metastatic ACCs (ENSAT stages I-III) radical resection is the treatment of choice...
January 8, 2018: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/29306639/skin-tissue-engineering-using-3d-bioprinting-an-evolving-research-field
#19
REVIEW
Sam P Tarassoli, Zita M Jessop, Ayesha Al-Sabah, Neng Gao, Sairan Whitaker, Shareen Doak, Iain S Whitaker
BACKGROUND: Commercially available tissue engineered skin remains elusive despite extensive research because the multi-stratified anisotropic structure is difficult to replicate in vitro using traditional tissue engineering techniques. Bioprinting, involving computer-controlled deposition of cells and scaffolds into spatially controlled patterns, is able to control not only the macro but also micro and nanoarchitecture and could offer the potential to more faithfully replicate native skin...
December 13, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/29305795/patients-preferences-and-existential-perspective-what-to-consider-and-how-should-patient-s-expectations-be-guided
#20
E Holmes, P Crome, A Arora
With an ageing population, surgical procedures in older patients are becoming increasingly more common. This can pose clinical and ethical dilemmas, during which clinicians need to make complex decisions. In this paper we discuss the importance of assessing mental capacity to assess if the older patient can make his or her own decisions relating to surgery. We also discuss the importance of understanding ethical principles, in order that clinicians can better guide patient's decision-making. In addition, we look at ageism, frailty, and co-morbidities, and their influence on clinician's decisions regarding surgery in older patients...
January 5, 2018: Aging Clinical and Experimental Research
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