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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/02/16 08:53:14」(JST)

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A meatotomy (/miːəˈtɒtəmɪ/^[1]^[2]) is a form of penile modification in which the underside of the glans is split. The procedure may be performed by a doctor to alleviate meatal stenosis or urethral stricture.^[3]^[4]^[5]^[6]

Procedure

A variety of techniques may be used to make the cut, but a doctor will generally crush the ventral meatus, urethra, and upper frenulum for 60 seconds with a straight Kelly hemostat and then divide the crush line with fine-tipped scissors. Other techniques include cauterisation, cutting with a scalpel (sometimes aided by clamps), or by using existing fistulas from it to tie off the area to be cut. Depending on the anatomy of the individual and the extent of the split, meatotomy performed with a scalpel may involve heavy bleeding, while crush and cauterisation methods are relatively bloodless. Regardless of the procedure used, meatotomies, like other genital modifications and genital piercings, heal quickly. Unlike other genital modifications, the glans tissue does not have a tendency to re-adhere to itself or heal closed.

A meatotomy may be extended to subincision or genital bisection, which are both much more complex and serious modifications.

Effects

Aside from the exposure of previously internal tissues, the newly enlarged urethral opening may hinder the ability to control the direction and shape of one's urine stream. This may result in messy urination and require that the meatotomized individual sit while urinating; however, this is not universally true. The larger urethral opening may also reduce the velocity of ejaculate, thereby reducing distance of ejaculation.

Repair of a meatotomy can be painful and difficult, and is similar to hypospadias repair.

Notes

^ OED 2nd edition, 1989.
^ Entry "meatotomy" in Merriam-Webster Online Dictionary.
^ Choudhury 2008
^ Palmer 2010
^ Angel, C.A. (June 12, 2006). "Meatal stenosis". eMedicine. Retrieved 2011-10-23.
^ Yachia 2007

References

Choudhury, Dhiraj (2008), General Surgical Operations, Jaypee Brothers Medical Publishers, p. 336, ISBN 81-8448-195-0
Palmer, Jeffrey S. (2010), Pediatric Urology: A General Urologist's Guide, Springer, p. 132, ISBN 1-60327-419-7
Yachia, Daniel (2007), Text Atlas of Penile Surgery, CRC Press, pp. 151–152, ISBN 1-84184-517-5

External links

Body Modification E-Zine encycyclopedia entry on meatotomy

UpToDate Contents

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1. 男性における尿道狭窄疾患の治療 treatment of urethral stricture disease in men
2. 環状切除の合併症 complications of circumcision
3. 熱傷再建の原理：会陰および生殖器 principles of burn reconstruction perineum and genitalia
4. 小児における局所麻酔剤 topical anesthetics in children
5. 包皮非切除者の陰茎のケア care of the uncircumcised penis

English Journal

Effect of Lichen Sclerosis on Success of Urethroplasty.

Granieri MA1, Peterson AC2, Madden-Fuentes RJ1.
The Urologic clinics of North America.Urol Clin North Am.2017 Feb;44(1):77-86. doi: 10.1016/j.ucl.2016.08.004.
Lichen sclerosis (LS) is a chronic, relapsing disease with a variable presentation. In men, genitourinary LS may affect the penile foreskin, glans, meatus, and urethra. Treatment is multifaceted, ranging from pharmacotherapy to surgery. Urethral reconstruction due to stricture disease from LS is fre
PMID 27908374

[Maxillary mucocele after an orthognathic surgery: case report].

Carrillo Andrades VA1, Carrillo Venezian BC2.
Medwave.Medwave.2017 Jan 16;17(1):e6841. doi: 10.5867/medwave.2017.01.6841.
in

English, SpanishEl mucocele es un tumor pseudoquístico poco frecuente en el seno maxilar y una rara complicación de la cirugía ortognática. El caso reportado describe la presentación de un mucocele que afecta parcialmente el seno maxilar y se presenta clínicamente como un tumor nasal. S

PMID 28241001

Medical clowns reduce pre-operative anxiety, post-operative pain and medical costs in children undergoing outpatient penile surgery: A randomised controlled trial.

Kocherov S1, Hen Y2, Jaworowski S3, Ostrovsky I2, Eidelman AI4, Gozal Y2, Chertin B5.
Journal of paediatrics and child health.J Paediatr Child Health.2016 Sep;52(9):877-81. doi: 10.1111/jpc.13242. Epub 2016 Jun 11.
AIM: The aim of this paper is to investigate prospectively the potential benefits of the participation of the medical clowns in the outpatient paediatric penile surgery programme.METHODS: Eighty children undergoing meatotomy, age 2 to 16 years, were randomised into two groups (40 each). In the fir
PMID 27289035

Japanese Journal

Dornier HM3 による上部尿路結石に対するESWL-1,000例の臨床的検討

江藤弘,原田益善,奥田喜啓,前田浩志,藤沢正人,藤井明,柯昭仁,浜口毅樹,郷司和男,守殿貞夫
泌尿器科紀要 36(8), 887-891, 1990-08
… Post-operative procedure included 69 transurethral lithotripsy , 21 PNSs, 26 percutaneous nephrolithotripsy (PNLs), 6 meatotomy , 5 chemolysis and 1 open surgery. …
NAID 120002157724

体外衝撃波による腎・尿管結石破砕術の臨床経験

丹田均,加藤修爾,坂丈敏,大西茂樹,中嶋久雄,熊本悦明
日本泌尿器科學會雜誌 76(12), 1770-1783, 1985-12-20
1984年9月1日より,本邦で初めて,上部尿路結石に対して,ESWL施行し,良好なる成績を上げたので報告する.上部尿路結石101例に対して,107回施行した.硬膜外麻酔を101例中96例(90%)に施行した.年齢は20〜74歳で,男71例,女30例である.結石の大きさは鋳型結石(5例)から1cm以下迄に及んだ.Shock waveの回数は400〜2,200回で,1,500回以下が80例(79%)で …
NAID 110006531471

ESWL (Extracorporeal Shock Wave Lithotripter)の臨床経験

新島端夫,岩動孝一郎,梅田隆,岸洋一,東原英二,赤座英之,富永登志,藤目真,原徹,木村明,平野美和,鈴木明,平澤潔,吉田雅彦,徳田拓,柴本賢秀
日本泌尿器科學會雜誌 76(10), 1460-1467, 1985-10-20
1984年12月より1985年2月にかけて,体外衝撃波腎結石砕石機(Extracorporeal Shock Wave Lithotripter,以下ESWL)の臨床治験をおこなったので,その結果を報告した.対象は,上部尿路結石の30名55結石で,ESWL術後4週目のレントゲン撮影で結石陰影を認めない者21名(70%),5mm以下の小結石を認める者2名(7%),5mm以上の残存結石を認める者7名( …
NAID 110006530939

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