Tight Closure | ScienceGate

Abstract Background Small bowel obstruction is a known and potentially lethal complication after gastric bypass surgery, in both the early and the late postoperative course. Colon or large bowel obstruction, on the other hand, seems to be rare after gastric bypass surgery and thus is not routinely considered. Case presentation We present the case of a 21-year old morbidly obese caucasian patient who underwent laparoscopic Roux-en-Y gastric bypass surgery and developed an early severe transverse colon obstruction due to compression of the transverse colon by the antecolic alimentary limb. Emergency revisional surgery showed a short and tense alimentary limb mesentery and possibly tight closure of Petersen’s space contributing to the compression. Through opening of Petersen’s space and mobilization of alimentary limb mesentery, decompression was achieved, and the patient fully recovered. Conclusions This is a rare case of colon obstruction caused by direct compression of the transverse colon by the antecolic alimentary limb. We propose that a combination of short tense alimentary limb mesentery and perhaps tight closure of Petersen’s space was responsible for the obstruction in this case. Surgeons and treating physicians need to be aware of such rare causes of early postoperative bowel obstruction and take these into consideration when evaluating patients.

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Localization of tight closure and modules of finite phantom projective dimension.

Journal für die reine und angewandte Mathematik (Crelles Journal) ◽

10.1515/crll.1993.434.67 ◽

1993 ◽

Vol 1993 (434) ◽

pp. 67-114

Keyword(s):

Projective Dimension ◽

Tight Closure

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Tight closure of parameter ideals in local rings F -rational on the punctured spectrum

Journal of Pure and Applied Algebra ◽

10.1016/j.jpaa.2017.06.011 ◽

2018 ◽

Vol 222 (5) ◽

pp. 1126-1138 ◽

Cited By ~ 1

Author(s):

Pham Hung Quy

Keyword(s):

Local Rings ◽

Tight Closure

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Parameter-Like Sequences and Extensions of Tight Closure

Commutative Ring Theory and Applications ◽

10.1201/9780203910627-20 ◽

2017 ◽

pp. 284-317

Keyword(s):

Tight Closure

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On a generalization of test ideals

Nagoya Mathematical Journal ◽

10.1017/s0027763000008904 ◽

2004 ◽

Vol 175 ◽

pp. 59-74 ◽

Cited By ~ 30

Author(s):

Nobuo Hara ◽

Shunsuke Takagi

Keyword(s):

Prime Characteristic ◽

Tight Closure ◽

Test Ideal ◽

Important Object ◽

The Ideal

AbstractThe test ideal τ(R) of a ring R of prime characteristic is an important object in the theory of tight closure. In this paper, we study a generalization of the test ideal, which is the ideal τ(at) associated to a given ideal a with rational exponent t ≥ 0. We first prove a key lemma of this paper (Lemma 2.1), which gives a characterization of the ideal τ(at). As applications of this key lemma, we generalize the preceding results on the behavior of the test ideal τ(R). Moreover, we prove an analogue of so-called Skoda’s theorem, which is formulated algebraically via adjoint ideals by Lipman in his proof of the “modified Briançon-Skoda theorem.”

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