An Analysis on the Length of the Large Intestine and Its Internal Diameter Amongst the Japanese.

Yamazaki, Shoichi; Yamazaki, Kazuma; Miyazaki, Teruo; Matsuoka, Katsuyoshi; Maruyama, Takashi; Yagi, Yukio; Takazakura, Y; Tomono, Masahiro

doi:10.3862/jcoloproctology.47.31

Cited by 12 publications

(12 citation statements)

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“…Alatise et al, reported increase in length of sigmoid colon and mesocolon with age [6]. Yamazaki et al, also found a similar positive correlation while, Sadahiro et al, showed a negative correlation with age [19,20]. However, authors like Bhatnagar et al, Atamanlp et al, found no correlation of parameters with age or its correlation with various measurements in both gender [3,7].…”

Section: Age Differencementioning

confidence: 77%

Morphology of Sigmoid Colon in South Indian Population: A Cadaveric Study

Michael

Rabi

2015

JCDR

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IntrOductIOnSigmoid volvulus is considered to be one of the leading causes of acute intestinal obstruction. This could be related to sigmoid colon being a mobile loop which normally lies in the lesser pelvis, but its length and form are the most variable of all colonic segments [1]. It is usually completely invested in peritoneum and is attached to the lower posterior abdominal wall by the fan-shaped sigmoid mesocolon [2]. The position and shape of the sigmoid colon varies according to the length of the colon; the length and mobility of its mesocolon; the degree of distension; the condition of the neighbouring viscera like rectum, bladder and uterus. Studies have shown that variation in the shape of mesocolon could alter the morphology of sigmoid colon [3]. In addition, the length and diameter of the sigmoid colon was found to vary in both genders [4,5] and noted to increase with age [6]. The present study aims to find the morphology of sigmoid colon in South Indian population using cadavers in view of the high incidence of sigmoid volvulus in cases of intestinal obstruction. MAterIAls And MethOdsApproval of the Institutional review board and ethics committee was obtained for the study. Thirty one cadavers donated to the Department of Anatomy for the purpose of teaching and research during the years 2012 to 2014 were evaluated. Cadavers with normal colons without any colonic disease were included in the study. The exclusion criteria were: 1) laparotomy incisions found on cadavers that indicated surgeries in life; 2) diseased or injured sigmoid colon; 3) intra-abdominal pathology such as peritonitis, stricture or adhesions. The age and gender of the cadavers were noted.The sigmoid colon was classified into three main types, classical, long-narrow and long-broad types as described by Madiba and Aim: The aim of this study was to find the morphology of sigmoid colon in South Indian population using cadavers.

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Section: Age Differencementioning

confidence: 77%

Morphology of Sigmoid Colon in South Indian Population: A Cadaveric Study

Michael

Rabi

2015

JCDR

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“…The degree of constipation has been reported to correlate significantly with the lengths of the transverse and sigmoid colon in Japanese patients, suggesting that right-sided diverticula may not be associated with constipation. 21 However, because most studies of colonic diverticula were performed in Western patients, in whom left-sided diverticula predominate, the pathophysiology of right-sided diverticula remains unclear. Additional detailed studies are needed to clarify the mechanisms underlying the development and predominance of right-sided diverticula in Asian populations.…”

Section: Discussionmentioning

confidence: 99%

Constipation is not associated with colonic diverticula: a multicenter study in Japan

Yamada¹,

Inamori

Watanabe³

et al. 2014

Neurogastroenterology Motil

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“…Yamazaki et al [111] report that the degree of constipation is significantly correlated with the length of transverse colon and of sigmoid colon. In Japanese the sigmoid colon is long and usually "O" shaped; indeed, if the anatomical names of the large intestine had originated in Japan, the "sigmoid colon" might now be known as the "omicroid colon."…”

Section: Pathological Featuresmentioning

confidence: 98%

“…The length of the large intestine has been measured by several researchers [110,111,112,113,114,115,116,117,118,119], but it is difficult to compare these data because of differences in the methods of measurement employed. Western reports generally use two methods, i.e., measuring the distance of string from mouth to anus, and by postmortem survey [112,113,114,115,116,117,118,119]; in contrast, Japanese reports determine the length of the large intestine by radiographs with barium enema [110,111]. As mentioned above, Sugihara et al [105] and Sasaki et al [107] have suggested that intraluminal pressure causes the development of right-sided diverticula in Japan.…”

Section: Pathological Featuresmentioning

confidence: 99%