Examination of female reproductive system
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Examination of female reproductive system
1
General points
2
Medical history
3
Examination
4
Vaginal examination during labour
Examination of female reproductive system
5
Rectal Examination
6
Investigations
7
Imaging techniques
8
Test of fetal well-being
1
General points
Presenting problems and gynaecological history
1
Menstrual upset 2
Postcoital bleeding, Dyspareunia
3
Symptoms of bladder or pelvic floor disturbance and backache
Menstruation
Definition: The cyclical loss of sanguineous fluid from the uterus in mature women The days of menstrual loss and duration of the interval from the first day of one period to the onset of the next,e.g.5/28
The date of the first day of the last menstrual period (LMP)
History of current and previous pregnan cies
The previous menstrual pattern before conception
The expected date of delivery (EDD)
The time taken for the woman to return to a normal menstrual pattern The course and outcome of previous pregnancies
General points A live birth
A neonatal death
The outcome of Previous pregnancies
A stillbirth
General points
A woman’s gravidity is described by the notation para x+y
X is the number of babies delivered
Y is the number of pregnancies the woman has had
2
Medical history
Medical history
Medication or Treatment history
allergic reactions should be recorded
Medical history Changes in appetite
A Volume of urine passed
Frequency of urine passed
Change in bowel habit
G
B General and associated system assessment
F
E E Variations in sleep patterns
C
Change in weight
D Change in responses to normal exercise
Family and social history 1
2
3
Employment
Home condition
the length of relationships
The ethnic origins of the family
4
5
a detailed family history
3
Examination
Examination appearance
Secondary sexual development and hair distribution
The level of intelligence and education
gait
General
demeanour
responsiveness
Examination Hands Arms Following a predictable sequence
Eyes Head,neck Breasts, chest Abdomen Pelvic examination
Abdominal examination
Inspection
striae gravidarum linea nigra Scars Fetal movement
Palpation
Fundal height Fetal poles and fetal lie Presentationbreech,head ect Attitude Level of presenting part Fetal movements Liquor volume
Auscultation
Fetal heart rate
Four maneuvers of Leopold
(1)
(3)
(2)
(4)
The size of the uterus Fetal lie
Four maneuvers of Leopold
Fetal presentation Fetal position engagement of the presentation
The size of the uterus is estimated from the fundal height
The fundal height is just above the symphysis pubis at 12 weeks’ gestation 22 weeks---at the umbilicus 30 weeks---equidistant from the symphysis pubis and the umbilicus 36 weeks---at the xiphisternum
36 weeks 30 weeks 22 weeks 12 weeks
Approximate fundal height with changing gestation
From 36 weeks the fundal height is also dependent on the level of the presenting part ,and will reduce as the presenting part descends into the pelvis
Comparative assessments can be made by measuring either the symphsis-fundal height or the minimal girth measured at the level of the umbilicus
Method of abdominal palpation to determine fetal lie and location of back
Fetal lie----the relationship of the long axis of the fetus to the long axis of the uterus
Once the presenting part has a relationship to the pelvis,that relationship can be vertical or rotational
When the flexed head presents, the fetal occiput is termed the denominator
When the face presents the denominator is the chin
When the breech presents the denominator is the sacrum
At At the the end end of of labour labour ,the ,the common common presenting presenting position position are are left left occipito-anterior occipito-anterior (LOA) (LOA) and and right right occipito-anterior occipito-anterior (ROA) (ROA)
(60%)
LOA
(30%) ROA
Engagement
(ischial spines)
Engagement of the baby’head in the pelvis will usually have occurred by the time the leading edge reaches the level of the ischial spines(zero station)
The vertical relationship of the presenting part to the pelvic
Listening over the fetal back to the fetal heart
A record is made of the fetal heart rate(FHR), normally at the range from 115 to 160 beats/min
Pelvic Examination
vaginally
Pelvic examination
rectally
The pelvic examination may be undertaken vaginally or rectally
For those who cannot use tampons or whose hymen is intact
Vaginally Examination
1
Before starting ,it is most important to explain every step to the patient
2
A good light is required and an assistant is necessary
3
Begin by inspecting the perineum in the dorsal or left lateral position
Vaginally Examination
Inspection of vulva Digital palpation Speculum examination
Inspection of vulva Mons pubis External urethral orifice
Hymen
Vaginal cavity The vulva
Any inflammation, swelling, soreness, ulceration or neoplasia of the vulva, perineum or anus is noted
Rectocele Uterine prolapse
Digital vaginal examination
With the patient in the supine position and with her knees drawn up and separated
Locate cervix bimanual palpation pelvic tenderness
Digital palpation
pelvic masses Ovaries and fallopian tubes
Assessment of uterus(position,mobility)
Bimanual examination
Two Two fingers(index fingers(index and and middle middle fingers) fingers) of right hand insert into of right hand insert into the the vigina,with vigina,with the the left left hand hand placed placed on on the abdomen above the symphysis the abdomen above the symphysis pubis pubis and and below below the the umbilicus umbilicus
The size,shape,position,consistency, and regularity of the relationship of the fundus of the uterus to the cevix is estimated Bimanual examination When attempts are made to move the cervix in the presence of pelvic inflammation,particularly in association with ectopic pregnancy,extreme pain results
Speculum Examination
This is an essential part of gynaecological examination The speculum should be warmed to body temperature and lubricated with water or a water-based jelly
Clinical instruments prepared for a Gynaecological examination
Cusco’s speculum used to expose the vaginal cavity and cervix
Smear from uterine cervix.
There are several abnormal squamous cells indicating situ carcinoma of the cervix. Large pink-stained normal superficial. Squamous cells and many inflammatory cells are also included
Technique for taking a cervical smear In order to detect cervical pre-cancer,an Aylesbury or similar spatula ia used
The tip of the spatula is placed firmly in the cervical os ,so as to allow the removal of surface cells from the whole of the squamo-columnar junction when the spatula is rotated through 360 degrees
Sims’s speculum used to display the anterior vaginal wall.
Using the left hang to elevate the right buttock. The blade then deflects the rectum, exposing the urethral meatus, anterior vaginal wall and bladder base
Uterine prolapse
FIST-DEGREE
SECOND-DEGREE
The cervix descends but lies short of the introitus
The cervix passes to the level of the introitus
THIRD-DEGREE
The whole of the uterus is prolapsed outside the vulva
VAGINAL EXAMINATION DURING LABOUR
Absence of pulsating umbilical cord, especially if the membranes are ruptured
The level of the presenting liquor
The examination is made to determine. .
The presence or absence of amniotic membranes
Data and effacement of the cervix
The size and shape of the maternal bony pelvis The degree of moulding of the fetal head, or the presence of the caput succedaneum
RECTAL EXAMINTION When vaginal examination is not possible or not acceptable, rectal examination permits bimanual assessment of the pelvic viscera and is particularly valuable in assessing problems which are located in the pouch of Douglas, the uterosacral ligaments, or the rectovaginal septum
INVESTIGATIONS 1 2
PREGNANCY TESTING BACTERIOLOGICAL AND VIRUS TESTS
3
COLPOSCOPY
4
HYSTEROSCOPY
5
ENDOMETRIAL BIOPSY
6
CYSTOSCOPY AND CYSTOMETRY
PREGNANCY TESTING
URINE
Most pregnancy tests depend on the demonstration of HCG in the urine, The sensitivity of these tests varies. Very early diagnosis of pregnancy is now possible
BLOOD
Even earlier detection of pregnancy is possible by radioimmunoassay of the beta-subunit of HCG in blood
BACTERIOLOGICAL AND VIRUS TESTS
Bacteriological and virus tests used in gynaecology and obstetrics include the following: phase I
1
2
3
Swabs from the throat, endocervix, vagina, urethra and rectum may be needed for sexually transmitted diseases
Bacteriological mid-stream urinalysis is important in both Obstetrics and Gynaecology
Tests for toxoplasma, rubella, cytomegalovirus and herpes simplex cover previous infections likely to be damaging to a pregnancy
COLPOSCOPY
Colposcopy permits visualization of the cervix, vaginal vault or vulva with a low-power binocular microscope to detect precancerous abnormalities of the epithelium
Colposcopy
HYSTEROSCOPY
This is a technique for viewing the cavity of the uterus using small diameter fibre-optic telescopes and cameras, such as endometrial ablation or resection of submuocus fibrods, which can be performed under general anaesthetic
Hysteroscopic view of an intrauterine device in situ
ENDOMETRIAL BIOPSY
One of the common investigations undertaken in Gynaecology is sampling of the endometrium. The biopsy is not always representative and may fail to make a diagnosis in up to one-third of cases An endometrial biopsy curette, a pipette cell sampler and fixing medium
CYSTOSCOPY AND CYSTOMETRY
Viewing the interior of the bladder by cystoscopy gives information of its condition and allows biopsy of the mucosa or removal of foreign bodies
The pressure/volume relationships of bladder filling, detrusor and sphincter activity and urethral flow rate can be assessed with a cystometrogram
IMAGING TECHNIQUES
RADIOLOGICAL INVESTIGATIONS 1 HYSTEROSALPINGOGRAPHY
2 LATERAL X-RAY PELVIMETRY
HYSTEROSALPINGOGRAPHY
This is now used infrequently to image the uterine cavity and fallopian tubes after a radiopaque medium has been installed into the uterus .The fallopian tubal lumen and patency can also be seen. The technique is being replaced by hysterosonegraphy
An abnormal hysterosalpingogram: uteri didelphys
LATERAL X-RAY PELVIMETRY
An indication for this assessment is a planned breech birth, so that the succedent head can be certain to pass through the pelvis without bony obstruction
Now MIR pelvimetry is usually used, in order to limit radiation exposure
ULTRASOUND
Ultrasound generated form a piezoelectric crystal transducer is propagated through tissue at variable velocity depending on tissue density. The echo time and signal amplitude give an estimate of the size and consistency of the object scanned. Ultrasound scanning is used in medicine assessment of gestational age, blood flow and all important parameters of pregnant monitoring
Two-dimensional imaging by "B" scanning is the primary modality, and additional information can be obtained by colour and pulsed Doppler which provides information on bloodflow.Transabdominal and transvaginal routes can be used.The former enables a wide field of view,greater depth of penetration and transducers movement; the latter,with higher frequency transducers,gives increased resolution and diagnostic power but over a more limited area
In early pregnancy (5-7weeks) ,the integrity, location and number of sacs can be viewed. At 11-13 weeks nuchal translucency mono dichorionicity and gross fetal abnormality can be detected. formal scanning at 18-20 weeks is performed to confirm structural normality and some functional activity. By 24 weeks uterine and placental blood flow can be assessed In Gynaecology, apart from the assessment of masses, ultrasound is useful to ascertain aspects of bladder function such as residual volumes and bladder neck activity. It is also helpful in the preoperative preparation of anal sphincter deficiency . .
CT SCNNING
CT scanning has proved less values in Gynaecology than that originally anticipated in other major and is used mainly for staging and follow up of malignancies
MRI MRI, however, offers an alternative to ultrasound and to X-ray imaging during pregnancy ;it uses no ionizing radiation and magnetic field strengths (0.2-2.0 tesla) in current application Good images are obtained with excellent differentiation of maternal and fetal tissues. Although ultrasound is much cheaper, no interactions from bone bowel gas occur
LAPAROSCOPY Visualization of the pelvic and abdominal MRI viscera is valuable if it can be done without a major injury to the abdominal wall (Fig.14.17).This is achieved by using a fibreoptic telescope illuminated by a light source remote from the patient. It is then possible to inflate the abdomen with carbon dioxide under general or local anaesthesia, so that the viscera, allowing inspection of the abdominal and pelvic contents
BIOLOGICAL TESTS Chorion biopsy This is a method of obtaining chorionic material at 911 weeks of pregnancy, usually through the abdomen so that genetic constitution or biochemical function of fetal cellular material can be determined. It is useful for the diagnosis of Down's syndrome, thalassaemia, and in a number of other hereditary conditions. Early and rapid diagnosis allows the therapeutic termination of an abnormal pregnancy, increasing the safety and acceptability of that procedure. There is still an increased risk of spontaneous abortion after the chorion biopsy and this technique is used only in specialized centres.
Maternal blood sampling for fetal cells
It is possible to isolate fetal cells from the maternal circulation which are suitable for chromosome analysis. Trials of this promising non-invasive test are currently underway
Chorion biopsy This is a method of obtaining chorionic material at 9-11 weeks of pregnancy, usually through the abdomen so that genetic constitution or biochemical function of fetal cellular material s can be determined. It is useful for the diagnosis of Dowm's syndrome, thalassaemia,and in a number of other hereditary, conditary conditions. Early and rapid diagnosis allows the therapeutic termination of an abnormal pregnancy, increasing the safety and acceptability of that procedure. There is still a increased risk of spontaneous abortion after the chorion biopsy and this technique is used only in specialized centres
Amniocentesis Samples of amniotic fluid can be used for:
Chromosome analysis This is undertaken at 13-18 weeks of pregnancy and is currently much safer than chorion biopsy. The amount of desquamated fetal cells obtained is much smaller in quantity than chorion biopsy. The amount of desquamated fetal cells obtained is much smaller in quantity than that from chorion biopsy and cell culture is necessary (which takes about 3weeks)before a chromosomal diagnosis is made. However, rapid preliminary results can be obtained using the fluorescent immunostaining method when other chromosome abnormalities are suspected
Bilirubin concentration
Sometimes it is measured in amniotic fluid pool in the latter stage of pregnancy in order to assess the health of a baby affected by maternal rhesus isoimmunization
DNA analysis Fetal cells obtained by amniocentesis, chorionic villus sampling or cordocentesis, (see below) can be used for DNA analysis of nuclear chromatin in order to directly test for a number of genetically-determined diseases, for example Tay-Sach's disease and Duchenne muscular dystrophy, in families known to be at risk. DNA testing and chromosomal studies should both only be carried out with fully informed parental consent, and with the help of a genetic counselling service
Cordocentesis In this procedure a needle is needed to insert through the abdominal wall and into the amniotic sac to obtain fetal blood from the placental insertion of the cord. It is used when chromosomal abnormality, haemophilia , haemoglobinopathies, inborn errors of metabolism, fetal viral infections or fetal anaemia are suspected. Althought the procedure carries more risk than amniocentesis, it is less traumatic than fetoscopy while providing rapid diagnosis
BIOCHEMICAL TESTS Early pregngncy Alpha fetoprotein This is a normal fetal protein which passes from the fetus into the amniotic fluid and maternal serum. Its’ maternal concentration varies in a predictable way with gestation. At 16 weeks 'gestation, the increased levels suggest fetal spina bifida or anencephaly However, similar levels can be caused by several other conditions, including threatened abortion, multiple pregnancy and exomphalos. Decreased levels are associated with the presence of an infant with Down's syndrome. A computed risk of Down's syndrome can be produced from maternal weight, gestation, parity and race ,measured against alpha fetoprotein, HCG and unconjugated oestriol ,and the results matched against ultrasound findings
Labour Fetal health in labour can be assessed by checking the liquor for tje presence of meconium, by checking the responsiveness of the fetal heart rate, and by monitoring feral movements. In addition to these simple clinical tests, fetal PH measured on a scalp blood sample can be used to detect acidosis. This is particularly useful if labour is prolonged ,complicated or known to be high-risk, e.g. in diabetic mothers. The fetal scalp is displayed using an amnioscope and a small sample of capillary vessel is obtained. If an urgent PH of the sample is below 7.2 then delivery is an urgent priority. Continuous oximetry by near infrared reflectance although useful is not in general use
BIOPHYSICAL TESTS Fetal movements In some cases with placental blood supply insufficiency, fetal movements decreases or stop 12-48 hours before the fetal heart ceases beat .In healthy pregnancy fetal movements increase from the 32nd week of pregnancy to term, but the 12 hour daily fetal movement count falls below 10 in only 2.5% of normal pregnancies. Thus a variety of counting systems which are used by mothers to count fetal movement and fetal welfare have been devised. These can alert the mother that a more sophisticated and detailed surveillance is required
Ultrasound Visualization by real time Sequential ultrasonic scanning to detect the presence of symmetrical or asymmetrical growth retardation or changes in fetal activity, breathing, movements, etc, can be used to assess placental function. If it becomes clear that fetal growth has halted or the child's survival in utero is in doubt, then urgent delivery should be planned with paediatric support
Cardiotocography(CTG ) Assessment of the fetal heart rate and its variation with fetal and uterine activity can be recorded antenatally with ultrasound using the Doppler principle(Fig.14.18).A pressure transducer is attached to the abdominal wall so that variations in uterine activity can be matched with the ultrasound recordings. The production of an accurate recording requires patience and considerable interpretive skills. If with membrane rupture during labour, a more accurate of the fetal heart rate can be produced by an electrode attached to the fetal scalp (Figs14.19and14.20).The recording is triggered by the fetal ECG
Doppler blood flow and Placental volume
Studies of the circulatory changes
in the uterine circulation may predict fetal urgence in the umbilical, aortic and cerebral, especially in already compromised circumstances. Ultrsound measurements of placental volume may also help in the prediction of fetal growth retardation