Transformations of the axial complex of ophiuroids as a result of shifting of the madreporite to the oral side

Abstract Background Pouch volvulus after proctocolectomy for ulcerative colitis is a very rare postoperative complication. The common site of pouch volvulus has been reported to be the ileal pouch–anal anastomosis and the middle part of the pouch, but no reports on pouch volvulus in the afferent limb of the pouch have been observed. Here, we report the case of a patient with afferent limb volvulus who underwent afferent limbpexy, but required reoperation 7 months later. Case presentation A 38-year-old man with refractory ulcerative colitis had undergone open proctocolectomy 10 years ago at another hospital. He had been aware of lower abdominal pain and bowel movement difficulty for 2 years. After repeated bowel obstruction, he was referred to our hospital for surgery. Based on the radiographic findings, we diagnosed a pouch volvulus and performed an operation. Laparoscopically, counterclockwise rotation of the afferent limb of the pouch was recognized. Moreover, the ileal mesentery was adhered and fixed to the presacral space 20 cm from the oral side of the pouch. The antimesenteric side of the afferent limb was fixed using interrupted stiches on the left peritoneal wall of the pelvis. He was discharged uneventfully 18 days after surgery, and defecation improved immediately. However, he was readmitted 7 months after surgery with the same abdominal pain and defecation difficulty. A similar finding was found and diagnosed as recurrent volvulus. Therefore, we performed a laparoscopic surgery. The same volvulus as in the previous surgery was confirmed. The site fixed during the previous surgery showed scars, but the afferent limb was free. The dilated ileum that contained the volvulus was excised only on the oral side of the pouch and an intraluminal anastomosis was performed on the anterior wall of the pouch. He had a good postoperative course and was discharged. Conclusion Proper diagnosis of volvulus based on the characteristic imaging findings is important. In principle, bilateral row fixation of the rotated ileum is the basic procedure for volvulus. However, fixation with this technique is sometimes difficult. Therefore, this procedure is one of the useful options for the fixation of difficult or recurrent cases.

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Endoscopic recanalization with an incision using a needle knife after identifying the oral‐side lumen in complete anastomotic stenosis

Digestive Endoscopy ◽

10.1111/den.13963 ◽

2021 ◽

Author(s):

Yuki Murakami ◽

Katsuyoshi Ando ◽

Mikihiro Fujiya

Keyword(s):

Anastomotic Stenosis ◽

Oral Side ◽

Needle Knife

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Relationship between Immunophenotype and Clinicopathological Findings for Superficial Nonampullary Duodenal Epithelial Tumor

Digestion ◽

10.1159/000514812 ◽

2021 ◽

pp. 1-8

Author(s):

Shigeki Fukusada ◽

Takaya Shimura ◽

Hiroyasu Iwasaki ◽

Yusuke Okuda ◽

Takahito Katano ◽

...

Keyword(s):

Malignant Potential ◽

Low Grade ◽

Negative Group ◽

Epithelial Tumor ◽

Endoscopic Findings ◽

Intestinal Phenotype ◽

Oral Side ◽

Clinicopathological Findings ◽

Gastric Phenotype ◽

The Relationship

Introduction: The natural history and prognosis of superficial nonampullary duodenal epithelial tumors (SNADETs) remain uncertain. We elucidated the relationship between immunophenotype and clinicopathological features. Materials and Methods: A total of 98 SNADETs were divided into 3 groups according to immunohistochemical findings: gastric phenotype (G type), gastrointestinal phenotype (GI type), and intestinal phenotype (I type). Cellular dysplasia was divided into low-grade dysplasia and high-grade dysplasia/adenocarcinoma (≥HGD). White opaque substance (WOS) deposition was categorized into diffuse WOS, partial WOS, and no WOS, based on endoscopic findings. Results: Of the 98 SNADETs, 4 lesions (4.1%) were G type, 32 lesions (32.7%) were GI type, and 62 lesions (63.2%) were I type. All G-type SNADETs were located in the oral side of the papilla including the bulb, and the rate of bulbar lesions was significantly higher in the G type than in the GI and I types (p = 0.004). The most frequent type of WOS was no WOS (4/4, 100%) for G type, partial WOS (19/32, 59.4%) for GI type, and diffuse WOS (34/62, 54.8%) for I type (p < 0.001), and loss of intestinal character was significantly correlated with WOS deficiency. GI/I-type SNADETs with partial or no WOS and G-type SNADETs were associated with ≥HGD. Additionally, the frequency of ≥HGD lesion was significantly higher in the CD10-negative group than in the CD10-positive group (57.1 vs. 19.8%, p = 0.043). Conclusion: Pathological intestinal character was correlated with the presence of WOS, and CD10 loss was associated with malignant potential of SNADETs.

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Analytical Limit Load Procedure for The Axial Complex Shaped Defect in a Pressurized Pipe

Journal of Pressure Vessel Technology ◽

10.1115/1.4052851 ◽

2021 ◽

Author(s):

Igor Orynyak ◽

Julia Bai ◽

Roman Mazuryk

Keyword(s):

General Procedure ◽

Limit Load ◽

Admissible Solution ◽

Experimental Comparison ◽

Physical Parameters ◽

Equilibrium Equations ◽

Axial Complex ◽

The Difference ◽

Full Scale Tests ◽

Distribution Of Stress

Abstract The paper is devoted to elaboration of the analytical O-procedure for limit load analysis of complex shaped axial defect in a pressurized pipe. It is based on the classical lower bound theorem of the theory of plasticity, and consists in construction of the statically admissible solution, where distribution of stress satisfies to the equilibrium equations and strength conditions. O-procedure is an optimization process to get the most favorable stress distribution for providing the maximal pressure. It allows to explicitly account for the variable geometrical and physical parameters. Contrary to other approaches, the derived formula for rectangular defect is only a particular case of the general procedure application. Four different methods for the complex defects are compared. They are: first, ASME, A-, rectangular defect formula combined with RSTRENG, R-, procedure, i.e., A-R approach; second, PCORRC, P-, formula with R-procedure, P-R approach; third, Orynyak's, O-, formula with R-procedure, O-R approach; and fourth, our universal O-procedure. The verification begins for rectangular defects where both theoretical and experimental comparison is performed for A-, P-, and O- formulas. The difference between them is small, provided that all three employ the same characteristic of material, here the ultimate strength. Then theoretical comparison for A-R, P-R, O-R approaches and O-procedure is performed for the artificial complex defects, for two symmetrical rectangular defects, for triangular defect. Experimental comparison between four methods is made based on the well-known University of Waterloo full scale tests.

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A supplementary description of Brisaster iheringi (Spatangoida: Schizasteridae) from the Miocene of Patagonia Argentina

Revista de Biología Tropical ◽

10.15517/rbt.v65i1-1.31675 ◽

2017 ◽

Vol 65 (1-1) ◽

pp. 137 ◽

Cited By ~ 1

Author(s):

Sergio Martínez ◽

Claudia J. Del Río

Keyword(s):

Original Description ◽

Early Miocene ◽

Apical Disc ◽

Oral Side ◽

First Time ◽

Stratigraphic Range

Neogene Argentinean echinoids are important biostratigraphic tools. New specimens of Schizaster iheringi (de Loriol, 1902) from Early Miocene sedimentites (Chenque Formation, Patagonia, Argentina) allowed us to improve its original description, providing for the first time details of the apical disc and the oral side of test. The species is included into the genus Brisaster: the first unquestionable documented reference to the taxon from the Neogene of Argentina. All previously reported specimens of this species are evaluated, concluding that the stratigraphic range of the genus Brisaster in Patagonia must be restricted to the Early Miocene. Rev. Biol. Trop. 65(Suppl. 1): S137-S146. Epub 2017 November 01.

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Microleakage of glass ionomer cement restorations

Stomatoloski glasnik Srbije ◽

10.2298/sgs0902078d ◽

2009 ◽

Vol 56 (2) ◽

pp. 78-85 ◽

Cited By ~ 1

Author(s):

Lado Davidovic ◽

Slavoljub Tomic ◽

Mihael Stanojevic ◽

Slavoljub Zivkovic

Keyword(s):

Glass Ionomer Cement ◽

Sem Analysis ◽

Glass Ionomer ◽

Penetration Test ◽

Dental Tissue ◽

Class V ◽

Oral Side ◽

Dye Penetration ◽

Hard Dental Tissue ◽

Ionomer Cement

Introduction. A lack of appropriate adhesiveness is one of the biggest problems in the restorative dentistry today and the main cause of the microleakage between restorations and hard dental tissue. The aim of this study was to assess the adhesiveness of two different glass ionomer cement restorations class V on the hard dental tissue using the SEM analysis and dye penetration test. Material and methods. The study included 80 extracted teeth for orthodontic reasons (premolars and molars) in both genders and different age. On the vestibular and oral side of the teeth, adhesive preparations class V were done (size 3?2?2 mm). On the vestibular preparation, GC Fuji II was applicated and GC Fuji II LC-improved on the oral side. The quality of the adhesiveness between restorations and hard dental tissue was evaluated using the SEM analysis and dye penetration test (0.5% basic fuxsin). Linear penetration of the dye was observed using 10 times magnification. Results. The results showed that microleakage was presented with both materials but a ratio was less with Fuji II LC compared with Fuji II. Also, the microleakage was less on the occlusal parts of the restorations than on the gingival, with both materials. Microleakage was noticed in 93.44% teeth with Fuji II GJC restorations with index of microleakage of 148 on all edges. Fuji II LC GJC restorations showed microleakage in 68.4% teeth with index of microleakage 75 on all edges. The SEM analysis showed that both glass ionomer materials had better adhesiveness to the enamel than to the dentin. The average gap length between Fuji II LC and dentin was 9 ?m and Fuji II 17 ?m, respectively. Conclusion. Better adhesiveness to the hard dental tissue was achieved with materials of the newer generations, resin modificated glas ionomer cements.

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Therapeutics and Medical Emergencies

Oxford Assess and Progress: Clinical Dentistry ◽

10.1093/oso/9780198825173.003.0021 ◽

2019 ◽

Author(s):

Nicholas Longridge ◽

Pete Clarke ◽

Raheel Aftab ◽

Tariq Ali

Keyword(s):

Side Effects ◽

Life Support ◽

The Body ◽

Practice Setting ◽

Oral Side ◽

Do No Harm ◽

Medical Emergencies ◽

The Will ◽

Key Topics ◽

Basic Level

Firstly, do no harm. This is held as the first law of clinical practice when considering any intervention to improve the health of our patients. This may at times be a difficult proposition, especially when the approach to treating a condition is fraught with risks and can carry the danger of adverse and unwanted side effects. Prescribing therapeutics is the time perhaps when this maxim should be most at the forefront of a clinician’s mind, as therapeutic interventions may not cause any immediately discernible danger or harm in the same way as operative interventions. It is therefore important for the prescriber to understand the relevant pharmacodynamics (the effects of the agent on the body) and pharmacokinetics (the effects of the body on the agent). To add a further layer of complexity, the reader should understand that pharmacological sciences are possibly the fastest evolving part of medicine. It would be a fair bet to say that, within the course of the reader’s undergraduate education, entire new classes of therapeutics will have emerged and established perceptions of other agents would have significantly changed. Practically speaking, this does not mean that it is necessary to memorize the nuances of all therapeutic agents (although you should have a good grasp of those you prescribe regularly); rather it is more important that a clinician understands how to recognize potential dangers and then be resourceful enough to mitigate against them, given the best knowledge available at the time. Access to an up- to-date formulary and the will to use it are the surest way to navigate any prescribing pitfalls. ‘We don’t rise to the occasion, we fall to the most basic level of our training’. Thankfully, medical emergencies occur infrequently in the general practice setting. It is the rarity of such events that often leads to anxieties when dealing with them. This reaction is amplified by the caregiver’s natural instinct to do something immediately, but often not knowing exactly what to do because the diagnosis is not immediately clear. The ABCDE approach, as advocated by the Resuscitation Council, is a safe and methodical way to approach any emergency. ABCDE is not only a hierarchy of importance for systems critical to life, but it also acts as an aide- memoire to undertake examinations and interventions when necessary. Most importantly, it buys time whilst the diagnosis is found or declares itself, without adversely affecting the outcome by inaction. Key topics include: ● Common drugs for common medical conditions ● Drug interactions ● Oral side effects of medications ● Basic life support ● Medical emergencies in dentistry (including the Resuscitation Council UK guidelines) ● ABCDE approach.

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Crinoid functional morphology

The Paleontological Society Papers ◽

10.1017/s1089332600000206 ◽

1997 ◽

Vol 3 ◽

pp. 45-68 ◽

Cited By ~ 13

Author(s):

Tomasz K. Baumiller

Keyword(s):

Functional Morphology ◽

Nearest Neighbors ◽

Bilateral Symmetry ◽

Dominant Mode ◽

Natural Setting ◽

Particle Capture ◽

Oral Side ◽

Directional Flow ◽

Collagenous Tissues ◽

Tube Feet

Recent advances in crinoid functional morphology have been concentrated predominantly in two areas, one involving the study of mutable collagenous tissues (MCTs), and the other dealing with the implications of crinoids' rheophilic nature. The presence of MCTs in crinoid cirri and stalks, and their importance to the function of these structures has been demonstrated in several studies. It has been recently reported that MCTs have contractile properties (Birenheide and Motokawa, 1996); if this is corroborated, it would help resolve many fundamental problems in crinoid functional morphology. Studies of the crinoids in their natural setting have confirmed their predominantly rheophilic nature. The application of the rheophilic paradigm and the principles of physics and engineering to crinoids has provided insights into several areas of crinoid functional morphology, including: (1) mechanics of particle interception—direct interception (and not sieving) as the dominant mode of particle capture by the tube feet (no mucus net); (2) the importance of feeding posture and orientation—(a) bilateral symmetry of the feeding posture (oral side downcurrent), (b) the problems associated with maintaining such a posture under bi- or multi-directional flow (swiveling of pinnules, arms, and /or entire filters); (3) the effect of filter resistivity on fluid interception—solid filters need high ambient current velocities; and (4) the influence of nearest neighbors on fluid interception—side-by-side neighbors might be favored over upstream–downstream neighbors.

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Surgical approach and treatment for the orifice of a pyriform sinus fistula: a case report and literature review

Journal of Surgical Case Reports ◽

10.1093/jscr/rjaa170 ◽

2020 ◽

Vol 2020 (6) ◽

Author(s):

Yukihiro Tatekawa

Keyword(s):

Case Report ◽

Surgical Approach ◽

Surgical Procedure ◽

Guide Wire ◽

Postoperative Recurrence ◽

Pyriform Sinus ◽

Fluoroscopic Guidance ◽

Pyriform Sinus Fistula ◽

Oral Side ◽

Nylon Thread

Abstract A 4-year-old girl underwent an open-neck surgical procedure for a recurrent pyriform sinus fistula (PSF). A catheter could not be inserted through the endoscope into the opening of the fistula. An open-neck surgical procedure with coring out of the fistula stained with a dye revealed that the fistula was missed near the upper lobe of the left thyroid. A guide wire was successfully inserted via the endoscope into the fistula, and the wire was gripped with forceps under fluoroscopic guidance and removed. As a modification of the surgical approach and treatment for the orifice of the PSF, a catheter was exchanged through the guide wire, and a nylon thread was passed into the catheter. The tip of the nylon thread from the oral side was fastened and fixed to a gauze ball. After removing the nylon thread, the orifice of the sinus fistula was recognized and sutured. She was discharged uneventfully and has done well without a postoperative recurrence for 12 months.

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