The Pelvic Floor Muscle Function in Chinese Primipara, a One-year Cohort Study
Study Details
Study Description
Brief Summary
It is a prospective cohort study.The primiparas in six geographic regions of China are recruited to observe the natural recovery of pelvic floor muscle. The pelvic floor muscle function is evaluated at 6 weeks,3 months and 12 months after delivery.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
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Detailed Description
The primiparas in six geographic regions of China are recruited to observe the natural recovery of pelvic floor muscle.Evaluation of pelvic floor function is performed at 6 weeks, 3 months, 12 months after delivery. The modified Oxford Grading Scale and Levator ani testing are used to quantify PFM strength through vaginal palpation. Pelvic floor muscles strength, endurance, repetition,vaginal contraction pressure and the knack test are evaluated using a neuromuscular stimulation therapy system of PHENIX (Company: Vivaltis -Electronic Concept Lignon Innovation, Montpellier, France).
Study Design
Outcome Measures
Primary Outcome Measures
- Maximum vaginal contraction pressure [Change from Baseline Maximum Vaginal Contraction Pressure in a year after delivery]
it is measured by manometry, range(80-150cmH2O). The higher values represent better outcomes.
Secondary Outcome Measures
- Pelvic floor muscle strength [change from baseline in a year after delivery]
The modified Oxford Grading Scale is used to quantify PFM strength through vaginal palpation.range(0-5).The higher values represent better outcomes.
- Pelvic floor muscle strength（repetition） [change from baseline in a year after delivery]
Levator ani testing is used to quantify PFM strength.range(0-5).The higher values represent better outcomes.
- Pelvic floor muscle contraction edurance [change from baseline in a year after delivery]
muscle contractions maintained for 0 s are defined as grade 0, 1 s as grade I, 2 s as grade II, 3 s as grade III, 4 s as grade IV, and 5 s or longer as grade V. Normal muscles can maintain the contraction for 5 s.range(0-5s).The higher values represent better outcomes.
- the knack test [change from baseline in a year after delivery]
a voluntary PFM contraction before or during coughing.That the contraction could be performed represents normal.
- vaginal rest pressure [change from baseline in a year after delivery]
measure when no vaginal contraction by manometry. range(25-50 cmH2O). the lower and the higher values represent abnormal outcomes.
- Condition of stress urinary incontinence [change from baseline in a year after delivery]
Ingelman-Sundberg classification is used according to the clinical symptoms of urinary incontinence, divided into mild, moderate and severe.
- pelvic organ prolapse quantification(POP-Q) [change from baseline in a year after delivery]
POP-Q is measured when maximum valsalva.range(0-4). stage 0 represents normal.
Eligibility Criteria
Criteria
Inclusion Criteria:
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Women who give birth for the first time （Including vaginal delivery and cesarean section）
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Term birth（37-42 weeks）
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Single birth
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Aged from 18 to 50
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Plan to live locally for extended periods of time
Exclusion Criteria:
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A history of incontinence before pregnancy
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A history of fecal incontinence before pregnancy
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Pelvic organ prolapse before pregnancy （prolapse out of the hymen ）
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A history of abortion or induced labour over 16 weeks of pregnancy
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Multiple pregnancy
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The weight of the newborn is less than 2500g or more than 4000g
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Precipitate labour
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Operative vaginal delivery（obstetric forceps or vacuum extraction）
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Laceration of perineum at least level III
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Request for pelvic floor rehabilitation exercise（patients who have entered the group can not train the pelvic floor muscle）
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Obesity （BMI before pregnancy over 25, BMI=weight (kg) / height square (m2) ）
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Asthma
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Long-term abdominal pressure（chronic cough for more than 1 months ，long-term constipation ect.）
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Diabetes
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Cotugno's disease
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A history of pelvic floor surgery in the previous years
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | Peking Union Medical College Hospital, Chinese Academy of Medicine Sciences | Beijing | Beiing | China | 100730 |
Sponsors and Collaborators
- Peking Union Medical College Hospital
- Liuzhou Maternity and Child Healthcare Hospital
- Maternity and Child Health Hospital of Dali
- Zhongshan City People's Hospital
- The First Affiliated Hospital with Nanjing Medical University
- Second Affiliated Hospital of Soochow University
- Maternity and Child Health Hospital of Changsha
- Henan Provincial People's Hospital
- Huaian Maternal and Child Health Care Hospital
- Hunan Provincial Maternal and Child Health Care Hospital
- Fourth Hospital of Shijiazhuang City
- Shenzhen Luohu District Maternity And Child Healthcare Hospital
- Second Affiliated Hospital of Wenzhou Medical University
- Hubei Shiyan People's Hospital
- Changzhi Maternity & Child Health Hospital
- Maternal and Child Health Care Hospital of Xinjiang Uygur Autonomous Region
- The First Hospital of Hebei Medical University
- Shen-Zhen City Maternity and Child Healthcare Hospital
- Dalian Medical University
- Maternity and Child Care Center of QinHuangDao City
- Chengdu Women's and Children's Central Hospital
- Shunyi Maternal and Children's Hospital of Beijing Children's Hospital
- Shandong Provincial Maternal and Child Health Care Hospital
- The People's Hospital of Leshan
- Hubei Maternal and Child Health Hospital
Investigators
- Principal Investigator: Lan Zhu, MD, Peking Union Medical College Hospital, Chinese Academy of Medicine Sciences
Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- JS-1549