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骨盤臓器脱に対する手術選択のアルゴリズムフローチャート

DeLanceyのレベルの障害度にそって手術法を選択する。
LSC: Laparoscopic Sacrocolpopexy、RSC: Robotic Sacrocolpopwxy

腟脱の診察

子宮摘出後の腟脱症例。

骨盤臓器脱

a:腟口から腟が反転して子宮が脱出し、外子宮口が確認できる。
b:子宮摘出後の腟脱。膨隆している部位はダグラス窩で小腸を触知する。
c:肛門から直腸壁が脱出する直腸脱。
出典
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1: 著者提供

骨盤臓器脱の分類

骨盤底臓器支持機構の破綻の部位によって骨盤臓器脱の状態を分類する。
a:尿道過可動 b:膀胱瘤 c:子宮脱
d:小腸瘤 e:直腸瘤 f:会陰体損傷(低位直腸瘤)

Q-tip試験

尿道口から綿棒を膀胱尿道移行部まで挿入し腹圧によって綿棒の軸の偏位度を測定する。30°以上の可動性を尿道過可動と診断する。
a:安静時 b:腹圧時

排尿日誌

排尿時間、排尿量、失禁時間、失禁したときの状態を順に記載する。
出典
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1: 著者提供

DeLanceyの解剖学的骨盤底臓器支持機構

骨盤底臓器の支持機構をレベルⅠ、Ⅱ、Ⅲの部位に分けて理解する。レベルⅠは上部腟管、子宮頸部が仙骨子宮靱帯・基靱帯複合体で仙骨方向に牽引される。レベルⅡは腟管の上部2/3の支持で前恥骨頸部筋膜、直腸腟筋膜が腟壁を挟むようにして骨盤側壁(骨盤筋膜腱弓)に付着する。レベルⅢは尿道、腟の下部1/3、会陰体、肛門が肛門挙筋、会陰膜に付着する。
a:骨盤底臓器の矢状断(MRI)
b:骨盤底臓器の支持機構(DeLanceyの3つのレベル)
出典
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1: 著者提供

Pelvic Organ Prolapse Quantification System(POP-Q)

外腟口(処女膜瘢痕部位)を0として頭側を-、尾側を+とする。各点の位置を示すことで下垂度を定量化する。
出典
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1: The standardization of terminology of female pelvic organ prolapse and pelvic floor dysfunction.
著者: Bump RC, Mattiasson A, Bø K, Brubaker LP, DeLancey JO, Klarskov P, Shull BL, Smith AR.
雑誌名: Am J Obstet Gynecol. 1996 Jul;175(1):10-7. doi: 10.1016/s0002-9378(96)70243-0.
Abstract/Text: This article presents a standard system of terminology recently approved by the International Continence Society, the American Urogynecologic Society, and the Society of Gynecologic Surgeons for the description of female pelvic organ prolapse and pelvic floor dysfunction. An objective site-specific system for describing, quantitating, and staging pelvic support in women is included. It has been developed to enhance both clinical and academic communication regarding individual patients and populations of patients. Clinicians and researchers caring for women with pelvic organ prolapse and pelvic floor dysfunction are encouraged to learn and use the system.
Am J Obstet Gynecol. 1996 Jul;175(1):10-7. doi: 10.1016/s0002-9378(96)...

POP-Qシステムによる骨盤臓器脱重症度分類

POP-Qの各点を測定し、最下点で進行期分類を行う。
 
参考文献:
日本産科婦人科学会/日本産婦人科医会編:産婦人科診療ガイドライン-婦人科外来編2023, p245
出典
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1: The standardization of terminology of female pelvic organ prolapse and pelvic floor dysfunction.
著者: Bump RC, Mattiasson A, Bø K, Brubaker LP, DeLancey JO, Klarskov P, Shull BL, Smith AR.
雑誌名: Am J Obstet Gynecol. 1996 Jul;175(1):10-7. doi: 10.1016/s0002-9378(96)70243-0.
Abstract/Text: This article presents a standard system of terminology recently approved by the International Continence Society, the American Urogynecologic Society, and the Society of Gynecologic Surgeons for the description of female pelvic organ prolapse and pelvic floor dysfunction. An objective site-specific system for describing, quantitating, and staging pelvic support in women is included. It has been developed to enhance both clinical and academic communication regarding individual patients and populations of patients. Clinicians and researchers caring for women with pelvic organ prolapse and pelvic floor dysfunction are encouraged to learn and use the system.
Am J Obstet Gynecol. 1996 Jul;175(1):10-7. doi: 10.1016/s0002-9378(96)...

骨盤底筋トレーニング(Kegel体操)

肛門、腟、尿道は肛門挙筋がU字型スリング状に恥骨結合方向に固定される。骨盤底筋トレーニングは肛門挙筋の収縮訓練である。
出典
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1: The nonsurgical treatment of genital relaxation; use of the perineometer as an aid in restoring anatomic and functional structure.
Ann West Med Surg. 1948 May;2(5):213-6.

骨盤臓器脱矯正用ペッサリー

欧米ではさまざまなタイプの腟内リングが考案されて、骨盤臓器脱の状態によって使用されている。わが国ではドーナッツ型のリングペッサリーが主として用いられる。自己着脱を訓練することで腟壁のびらん形成を防止し、長期にわたっても使用できる。
出典
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1: Pessary use and management for pelvic organ prolapse.
著者: Atnip SD.
雑誌名: Obstet Gynecol Clin North Am. 2009 Sep;36(3):541-63. doi: 10.1016/j.ogc.2009.08.010.
Abstract/Text: Pessary is a low-risk and effective non-surgical treatment option for pelvic organ prolapse. Indications for pessary include symptomatic prolapse, if surgery is not desired or recommended, and use as a diagnostic tool to predict surgical outcomes. Evidence for pessary selection and management is incomplete so trial and error, expert opinion, and experience remain the best guides for use and management of the pessary. With proper training and understanding of pessary management, most patients can be successfully fitted and taught to manage the pessary either for short- or long-term relief of symptoms. Patient satisfaction is high making pessary an important tool in treating prolapse.
Obstet Gynecol Clin North Am. 2009 Sep;36(3):541-63. doi: 10.1016/j.og...

骨盤臓器脱に対する骨盤底再建手術

*DeLanceyの骨盤底支持のレベルに準じて手術法を組み合わせて、骨盤底各臓器の位置を復元する。
**施行に当たっては日本女性骨盤底医学会への登録が必要
出典
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1: 古山将康.:ウロギネコロジー 学際領域の診療. 日本産科婦人科学会誌 2005; 57巻4号: N68, 表5.

クリニカルパス

一般的な骨盤臓器脱に対する手術のパスとして示している。

骨盤底臓器の支持機構

DeLanceyによる3つのレベルによる骨盤底臓器の支持機構を示す。子宮頸部、後腟円蓋部は仙骨子宮靱帯によって仙骨方向へ牽引される(レベルⅠ)。腟の上部2/3は恥骨頸部筋膜と直腸腟筋膜が腟管を挟むように支持し骨盤側壁に付着する(レベルⅡ)。尿道、腟の下部1/3、会陰、肛門は会陰膜、骨盤底筋に癒合して固定される(レベルⅢ)。
出典
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1: 著者提供

子宮脱症例

a:子宮脱 子宮頸部が中央に観察される。膀胱瘤、小腸瘤も合併している。
b:POP-Qによる評価
出典
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1: 著者提供

Kegel体操

① 肛門挙筋の収縮を短時間で20回程度繰り返して30秒安静
② 3秒から10秒程度続け、弛緩を同じ時間繰り返す方法で、それを20回程度反復
③ 10秒以上の収縮と弛緩を反復
これを1日で2回から3回施行する
仰臥位でできるようになれば、坐位や立位でも練習する。
出典
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1: Progressive resistance exercise in the functional restoration of the perineal muscles.
Am J Obstet Gynecol. 1948 Aug;56(2):238-48. doi: 10.1016/0002-9378(48)90266-x.

骨盤臓器脱の画像診断

経会陰超音波断層:SP 恥骨結合、U 尿道、V 腟、T トランスデューサー、AC 肛門、ARA 肛門直腸角、 R 直腸、UT子宮、B 膀胱
出典
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1: Pelvic floor ultrasound: a review.
著者: Dietz HP.
雑誌名: Am J Obstet Gynecol. 2010 Apr;202(4):321-34. doi: 10.1016/j.ajog.2009.08.018.
Abstract/Text: Imaging currently plays a limited role in the investigation of pelvic floor disorders. It is obvious that magnetic resonance imaging has limitations in urogynecology and female urology at present due to cost and access limitations and due to the fact that it is generally a static, not a dynamic, method. However, none of those limitations apply to sonography, a diagnostic method that is very much part of general practice in obstetrics and gynecology. Translabial or transperineal ultrasound is helpful in determining residual urine; detrusor wall thickness; bladder neck mobility; urethral integrity; anterior, central, and posterior compartment prolapse; and levator anatomy and function. It is at least equivalent to other imaging methods in visualizing such diverse conditions as urethral diverticula, rectal intussusception, mesh dislodgment, and avulsion of the puborectalis muscle. Ultrasound is the only imaging method able to visualize modern mesh slings and implants and may predict who actually needs such implants. Delivery-related levator trauma is the most important known etiologic factor for pelvic organ prolapse and not difficult to diagnose on 3-/4-dimensional and even on 2-dimensional pelvic floor ultrasound. It is likely that this will be an important driver behind the universal use of this technology. This review gives an overview of the method and its main current uses in clinical assessment and research.

Copyright 2010 Mosby, Inc. All rights reserved.
Am J Obstet Gynecol. 2010 Apr;202(4):321-34. doi: 10.1016/j.ajog.2009....

骨盤臓器脱に対するTVM手術

ab:前腟壁
cd:後腟壁
出典
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1: Tolerance of synthetic tissues in touch with vaginal scars: review to the point of 287 cases.
著者: Debodinance P, Cosson M, Burlet G.
雑誌名: Eur J Obstet Gynecol Reprod Biol. 1999 Nov;87(1):23-30. doi: 10.1016/s0301-2115(99)00068-8.
Abstract/Text: With an experience of 287 vaginal way operations using synthetic material, the authors make a review about the tolerance of the tissues. Three tissues were used (polytetrafluoroethylene, Dacron and Lyodura). The procedures are: Mouchel, big and small slings, Stamey and para vaginal refect procedures. At 30 months, the tolerance is 70% for Mouchel and 90% for sling procedures. The rejection rate with Dacron is globally 19.3% vs. 30.3% for Gore Tex . The authors describe materials' history, clinical symptoms and histopathologic signs of the intolerance. They think that the synthetic tissue tolerance is proportional to the exhibit surface and to the distance which separates it from the scar. The substratum of the intolerance process answers with two explanations: infection and foreign body reaction. Different theories are explained. Infection can be an ethiologic factor in early rejection. With rigid material, a small ulcer is formed and serves as a nidus for an ascending infection. Foreign material acts as an adjuvant by decreasing the number of bacteria necessary to produce an infection. The tissue reaction may be an immune response to Dacron, a delayed hypersensitivity reaction, or a graft vs. host antigen-antibody reaction. The ideal synthetic mesh material for pelvic surgery has yet to be developed.
Eur J Obstet Gynecol Reprod Biol. 1999 Nov;87(1):23-30. doi: 10.1016/s...
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2: Safety of Trans Vaginal Mesh procedure: retrospective study of 684 patients.
著者: Caquant F, Collinet P, Debodinance P, Berrocal J, Garbin O, Rosenthal C, Clave H, Villet R, Jacquetin B, Cosson M.
雑誌名: J Obstet Gynaecol Res. 2008 Aug;34(4):449-56. doi: 10.1111/j.1447-0756.2008.00820.x.
Abstract/Text: AIM: To study peri-surgical complications after cure of genital prolapse by vaginal route using interposition of synthetic prostheses Gynemesh Prolene Soft (Gynecare) following the Trans Vaginal Mesh (TVM) technique.
METHODS: The present retrospective multicentered study comprised 684 patients who underwent surgery at seven French centers between October 2002 and December 2004. All patients had a genital prolapse >or=3 (C3/H3/E3/R3) according to International continence society (ICS) classification. According to each case, prosthetic interposition was total, or anterior only or posterior only. Patients were systematically seen 6 weeks, 3 months and 6 months after surgery. Multivaried statistical analysis followed a model of logistic regression applied to each post-surgical complication.
RESULTS: The mean age of patients was 63.5 years (30-94). The mean follow-up period was 3.6 months. 84.3% of patients were post-menopause, 24.3% had hysterectomy, 16.7% previous cure of prolapse, and 11.1% cure of stress urinary incontinence (SUI). During the procedure, hysterectomy was combined in 50.3% of cases, cervix amputation in 1.5%, and cure of SUI in 40.9%. 15.8% were treated for a cystocele only. 14.8% had only a rectocele +/- elytrocele and 69.4% had a prolapse touching both compartments, anterior and posterior. In peri-surgical complications, (2%) were five bladder wounds (0.7%), one rectal wound (0.15%) and seven hemorrhages greater that 200 mL (1%). Among early post-surgical complications (during the first month after surgery) (2.8%) were two pelvic abscesses (0.29%), 13 pelvic hematomas (1.9%), one pelvic cellulitis (0.15%), two vesicovaginal fistulas and one rectovaginal fistula (0.15%). Among late post-surgical complications (33.6%) there were 77 granulomas or prosthetic expositions (11.3% [6.7% in the vaginal anterior wall, 2.1% in the vaginal posterior wall and 4.8% in the fornix]), 80 prosthetic retractions (11.7%), 36 relapse of prolapse (6.9%) and 37 SUI de novo (5.4%). Multivaried analysis shows that previous history of hysterectomy or placing of an isolated anterior prosthesis increase the risk of peri-surgical complication; preserved uterus and isolated posterior prosthesis lessen the risk of granulomas and prosthetic retractions; and association of a Richter's intervention increases the rate of prosthetic retractions.
CONCLUSION: Cure of genital prolapse with synthetic prostheses interposed by vaginal route is now reliable and can be reproduced with a low rate of peri- and early post-surgical complications. However, our study shows a certain number of late post-surgical complications after insertion of strengthening synthetic vaginal implants (prosthetic expositions and prosthetic retractions). These retrospective results will soon be compared to a prospective study.
J Obstet Gynaecol Res. 2008 Aug;34(4):449-56. doi: 10.1111/j.1447-0756...
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3: Transvaginal mesh technique for pelvic organ prolapse repair: mesh exposure management and risk factors.
著者: Collinet P, Belot F, Debodinance P, Ha Duc E, Lucot JP, Cosson M.
雑誌名: Int Urogynecol J Pelvic Floor Dysfunct. 2006 Jun;17(4):315-20. doi: 10.1007/s00192-005-0003-8. Epub 2005 Oct 15.
Abstract/Text: Prosthetic reinforcement in the surgical repair of pelvic prolapse by the vaginal approach is not devoid of tolerability-related problems such as vaginal erosion. The purposes of our study are to define the risk factors for exposure of the mesh material, to describe advances and to recommend a therapeutic strategy. Two hundred and seventy-seven patients undergoing surgery due to pelvic prolapse with transvaginal mesh technique were included in a continuous, retrospective study between January 2002 and December 2003. Thirty-four cases of mesh exposure were observed within the 2 months following surgery, which represents an incidence of 12.27%. All the patients were medically treated, nine of whom were found to have completely healed during the check-up performed at 2 months. In contrast, 25 patients required partial mesh exeresis. Risk factors of erosion were concomitant hysterectomy [OR = 5.17 (p = 10(-3))] and inverted T colpotomy [OR = 6.06 (p = 10(-2))]. Two technical guidelines can be defined from this study as regards the surgical procedure required in order to limit mesh exposure via the vaginal route. The uterus must be preserved, and the number and extent of colpotomies needed to insert the mesh must be limited.
Int Urogynecol J Pelvic Floor Dysfunct. 2006 Jun;17(4):315-20. doi: 10...

骨盤臓器脱の診療アルゴリズム

腟からの脱出と骨盤臓器脱を診察で分類する。QOLの低下が診療を進めるうえで最も大切である。
GI検査とは消化管の造影検査もしくは内視鏡検査を指す。
出典
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1: Fourth International Consultation on Incontinence Recommendations of the International Scientific Committee: Evaluation and treatment of urinary incontinence, pelvic organ prolapse, and fecal incontinence.
Neurourol Urodyn. 2010;29(1):213-40. doi: 10.1002/nau.20870.

骨盤臓器脱に対する手術選択のアルゴリズムフローチャート

DeLanceyのレベルの障害度にそって手術法を選択する。
LSC: Laparoscopic Sacrocolpopexy、RSC: Robotic Sacrocolpopwxy

腟脱の診察

子宮摘出後の腟脱症例。