Presented by:Dr haizum
Thursday, 10 October 2013
Wednesday, 24 July 2013
Thursday, 18 July 2013
Saturday, 29 June 2013
Update in obstetric and gynaecology in hospital segamat on june 2012
Update in obstetric and gynaecology in hospital segamat on june 2012
topic in this slide show are:
- MDG 4&5
- nausea and vomiting in pregnancy and hyperemesis gravidarum
- miscarriage
- ectopic pregnancy
- molar pregnancy
Thursday, 20 June 2013
CME by medical officers
Weekly CME
for medical officers
Dates
|
Topics
|
Presenter
|
29/5/2013
|
Magpie trial
|
Dr
Zharif
|
5/6/2013
|
Maternal collapse- a
case study
|
Dr
Molee
|
12/6/2013
|
Eclampsia- a case
study
|
Dr
Nurul
|
19/6/2013
|
Dr
Hasniza
|
|
26/6/2013
|
Dr
Azreen
|
|
3/7/2013
|
Dr
Irene
|
|
10/7/2013
|
Dr
Zharif
|
|
17/7/2013
|
Diabetes in Pregnancy
|
Dr
Molee
|
24/7/2013
|
Dr
Nurul
|
|
31/7/2013
|
DUBLIN
|
Dr
Hasniza
|
14/8/2013
|
Oracle I and II
|
Dr
Azreen
|
21/8/2013
|
Dr
Irene
|
|
28/8/2013
|
Dr
Zharif
|
|
4/9/20133
|
Dr
Molee
|
|
11/9/2013
|
ASTEC
|
Dr
Nurul
|
18/9/2013
|
Dr
Hasniza
|
|
25/9/2013
|
Dr
Azreen
|
|
2/10/2013
|
Dr
Irene
|
|
9/10/2013
|
PORTEC
|
Dr
Zharif
|
23/10/2013
|
Dr
Molee
|
|
30/10/2013
|
Dr
Nurul
|
|
6/11/2013
|
Dr
Hasniza
|
|
13/11/2013
|
HERS STUDY
|
Dr
Azreen
|
20/11/2013
|
Dr
Irene
|
|
27/11/2013
|
Dr
Zharif
|
|
4/12/2013
|
Dr
Molee
|
|
11/12/2013
|
WHI
|
Dr
Nurul
|
18/12/2013
|
Dr
Hasniza
|
Saturday, 11 May 2013
Methyldopa
Manufacturer | Pharmaniaga Manufacturing Berhad | ||||||||||||
Distributor | Pharmaniaga Logistics | ||||||||||||
Contents | Methyldopa | ||||||||||||
Indications | Mild to moderate HTN. | ||||||||||||
Dosage | Adult Initially 250 mg daily for 2 days. May increase by 250 mg at 2-day intervals. Max: 2 g/day. Childn Initially 10 mg/kg bd-tds. Max: 65 mg/kg/day. | ||||||||||||
Administration | May be taken with or without food. | ||||||||||||
Contraindications | Phaeochromocytoma, depression, active hepatitis, hepatic or renal insufficiency. | ||||||||||||
Special Precautions | In halothane narcosis, risk of hepatotoxicity & intensity of narcosis may be enhanced. | ||||||||||||
Adverse Drug Reactions | Sedation,
headache, weakness, dizziness, parkinsonism, bradycardia, orthostatic
hypotension, GI symptoms, hepatic impairment, impotence. View ADR Monitoring Website |
||||||||||||
Drug Interactions | Other antihypertensives, anaesth, lithium. View more drug interactions with Pharmaniaga Methyldopa |
||||||||||||
Pregnancy Category (US FDA) | |||||||||||||
MIMS Class | Other Antihypertensives | ||||||||||||
ATC Classification | C02AB01 - methyldopa (levorotatory) ; Belongs to the class of methyldopa, centrally-acting antiadrenergic agents. Used in the treatment of hypertension. | ||||||||||||
Poison Schedule | B |
Presentation/Packing | ||||||||
|
Pharmacokinetics and Metabolism
The maximum decrease in blood pressure occurs four to six hours after oral dosage. Once an effective dosage level is attained, a smooth blood pressure response occurs in most patients in 12 to 24 hours. After withdrawal, blood pressure usually returns to pretreatment levels within 24–48 hours.Methyldopa is extensively metabolized. The known urinary metabolites are: α-Methyldopa mono-O-sulfate; 3-0-methyl-α-Methyldopa; 3,4-dihydroxyphenylacetone; α-Methyldopamine; 3-0-methyl-α-Methyldopamine and their conjugates.
Approximately 70 percent of the drug which is absorbed is excreted in the urine as Methyldopa and its mono-O-sulfate conjugate. The renal clearance is about 130 mL/min in normal subjects and is diminished in renal insufficiency. The plasma half-life of Methyldopa is 105 minutes. After oral doses, excretion is essentially complete in 36 hours.
Methyldopa crosses the placental barrier, appears in cord blood, and appears in breast milk.
Contraindications
Methyldopa is contraindicated in patients:
- with active hepatic disease, such as acute hepatitis and active cirrhosis.
- with liver disorders previously associated with Methyldopa therapy (see WARNINGS).
- with hypersensitivity to any component of this product.
- on therapy with monoamine oxidase (MAO) inhibitors.
Warnings
It is important to recognize that a positive Coombs test, hemolytic anemia, and liver disorders may occur with Methyldopa therapy.With prolonged Methyldopa therapy, 10 to 20 percent of patients develop a positive direct Coombs test which usually occurs between 6 and 12 months of Methyldopa therapy.
Lowest incidence is at daily dosage of 1 g or less. This on rare occasions may be associated with hemolytic anemia, which could lead to potentially fatal complications.
If a positive Coombs test develops during Methyldopa therapy, the physician should determine whether hemolytic anemia exists and whether the positive Coombs test may be a problem.
Before treatment is started, it is desirable to do a blood count (hematocrit, hemoglobin, or red cell count) for a baseline or to establish whether there is anemia. Periodic blood counts should be done during therapy to detect hemolytic anemia. It may be useful to do a direct Coombs test before therapy and at 6 and 12 months after the start of therapy.
If Coombs-positive hemolytic anemia occurs, the cause may be Methyldopa and the drug should be discontinued. Usually the anemia remits promptly. If not, corticosteroids may be given and other causes of anemia should be considered.
Should the need for transfusion arise in a patient receiving Methyldopa, both a direct and an indirect Coombs test should be performed. In the absence of hemolytic anemia, usually only the direct Coombs test will be positive. A positive direct Coombs test alone will not interfere with typing or cross matching. If the indirect Coombs test is also positive, problems may arise in the major cross match and the assistance of a hematologist or transfusion expert will be needed.
Occasionally, fever has occurred within the first three weeks of Methyldopa therapy, associated in some cases with eosinophilia or abnormalities in one or more liver function tests, such as serum alkaline phosphatase, serum transaminases (SGOT, SGPT), bilirubin, and prothrombin time. Jaundice, with or without fever, may occur with onset usually within the first two to three months of therapy. In some patients the findings are consistent with those of cholestasis. In others the findings are consistent with hepatitis and hepatocellular injury.
Precautions
General
Methyldopa should be used with caution in patients with a history of previous liver disease or dysfunction (see WARNINGS).
Some patients taking Methyldopa experience clinical edema or weight
gain which may be controlled by use of a diuretic. Methyldopa should not
be continued if edema progresses or signs of heart failure appear.Hypertension has recurred occasionally after dialysis in patients given Methyldopa because the drug is removed by this procedure.
Rarely, involuntary choreoathetotic movements have been observed during therapy with Methyldopa in patients with severe bilateral cerebrovascular disease. Should these movements occur, stop therapy.
REF:
http://www.drugs.com/pro/methyldopa.html
http://www.mims.com/MALAYSIA/drug/info/Pharmaniaga%20Methyldopa/#Content
Friday, 10 May 2013
Gestational Trophoblastic Disease
Gestational
Trophoblastic Disease
Define: Abnormal pregnancy in which the developing fetus and
placenta are replaced by proliferation of throphoblastic tissue.
¬ Spectrum of disease
a)
Benign - Complete hydatidiform moles, partial mole
b)
Malignant – Invasive mole,
Choriocarcinoma, placenta site trophoblastic tumor
Gestational
trophoblastic Neoplasia
Define: any evidence of persistence of GTD with persistent elevation
of beta human chorionic gonadotrophin
Differentiate
Complete
Hydatidiform mole
|
Partial
mole
|
46XX
Homozygous (75-80%)
-duplication of a single sperm following
fertilisation
of an ‘empty’ ovum
46XY
Heterozygous (20-25%)
-dispermic fertilisation of
an
‘empty’ ovum
|
69XXY
triploid (from maternal & paternal)
- two
sets of paternal haploid genes and
one
set of maternal haploid genes
-following
dispermic fertilisation of
an
ovum
(10%
are tetraploid or mosaic conception)
|
No
embryonic or fetal tissue
|
embryonic
or fetal tissue
|
Diffuse
trophoblastic hyperplasia
|
Focal
trophoblastic – variable changes
|
Generalized
swelling of villous tissue
-all
hydrophic
|
Focal
swelling of villous tissue
-some
hydrophic
|
May
develop malingnant changes
|
Less
likely to develop malignant changes
|
Symptoms and signs of molar
pregnancy:
¬ classic
features
a) irregular vaginal
bleeding (Passing out “grape-like
structure” )
b) hyperemesis
c) excessive uterine
enlargement
d) early failed
pregnancy.
¬ Rarer presentations : hyperthyroidism,
early onset pre-eclampsia or abdominal distension due to theca lutein cysts
¬ Very rarely: acute respiratory failure or
neurological symptoms such as seizures (metastatic)
Diagnosis
¬
Ultrasound examination is helpful in
making a pre-evacuation diagnosis.
¬
Definitive diagnosis is made by
histological examination of the products of conception.
Investigation
¬
FBC, Coagulation profile
¬
Blood group cross match
¬
BhCG
In women with a complete mole, the quantitative serum beta-hCG level is
higher than expected, often exceeding 100,000 IU/L. In case of a partial
mole, the level of beta-hCG is often within the wide range associated
with normal pregnancy and the symptoms are usually less pronounced. For
these reasons the diagnosis of a partial mole is often missed clinically
and made from subsequent histologic assessment of the abortive materia
¬ Ultrasound
: ‘snow’storm’ appearance, no fetal parts seen, bilateral theca lutein cysts in
POD
¬
Chest X-ray - exclude invasive mole in
lung
1. Evacuation
of molar pregnancy
a) Complete
molar pregnancies : Suction curettage.
b) Partial
molar pregnancies : Suction curettage except when the size of the fetal parts deters
the use of suction curettage, then medical evacuation can be used.
¬ Medical evacuation of complete molar
pregnancies should be avoided because
-
the routine use of potent oxytocic agents lead
to contraction of myometrium and potential to embolise and disseminate
trophoblastic tissue through the venous system
-
Use of
mifepristone and misoprostol increases the sensitivity of the uterus to
prostaglandins
¬ Preparation of
the cervix (to ripen it) immediately prior to evacuation is safe
-
Prolonged
cervical preparation, particularly with prostaglandins, should be avoided to reduce the risk of embolisation of
trophoblastic cells.
2.
The use of oxytocic infusion prior to
completion of the evacuation is not recommended.
¬
Excessive vaginal bleeding can be
associated with molar pregnancy and a senior surgeon directly
supervising surgical evacuation is advised.
¬
If the woman had significant
haemorrhage prior to evacuation, surgical evacuation should be expedited and
the need for oxytocin infusion weighed up against the risk of tumour
embolisation.
3. Histologic
assessment
¬
If obtained from the medical or
surgical management of all failed pregnancies is recommended to exclude
trophoblastic neoplasia.
¬
No need to routinely send products of
conception for HPE after surgical termination of pregnancy, provided that fetal
parts have been identified on prior ultrasound examination.
4. A
urinary pregnancy test should be performed 3 weeks after medical management of
failed pregnancy if products of conception are not sent for histological
examination.
5. Anti-D
prophylaxis is required following evacuation of a molar pregnancy (may delayed)
-
Required in partial mole
-
Not
required in complete mole because of poor vascularisation of the chorionic
villi and absence of the anti-D antigen
Women need investigated for GTN after non-molar pregnancy
¬
Any woman who develops persistent
vaginal bleeding after a pregnancy event is at risk
¬
A urine pregnancy test should be
performed in all cases of persistent or irregular vaginal bleeding after a
pregnancy event.
¬
Symptoms from metastatic disease can
occur very rarely.
Follow-up
The aims of follow-up are to confirm successful treatment
and to identify women with persistent or malignant GTD who may require
adjuvant chemotherapy or surgery at an early stage. Persistent vaginal
bleeding and above all elevation of serum beta-hCG levels are the main
indicators of residual disease.
The outcome of a
partial hydatidiform mole after uterine evacuation is almost always
benign. Persistent disease occurs in 1.2% to 4% of cases; metastasis
occurs only in 0.1% of cases
In complete moles, these risks are approximately 5 times greater after
treatment with uterine evacuation and 2-3 times greater after
hysterectomy
The risk of persistent or recurrent GTD is greatest in the first 12
months after evacuation, with most cases presenting within 6 months.
A
variety of hCG criteria have been used to diagnose postmolar
gestational trophoblastic disease. Recently, the International
Federation of Gynecologists and Obstetricians (FIGO) standardized the
following hCG criteria for the diagnosis of postmolar gestational
trophoblastic disease
- An hCG level plateau of four values ±10% recorded over a 3-week duration (days 1, 7, 14, and 21).
- An hCG level increase of more than 10% of three values recorded over a 2-week duration (days 1, 7, and 14).
- Persistence of detectable hCG for more than 6 months after molar evacuation.
Use
of reliable hormonal contraception is recommended while hCG values are
being monitored. Oral contraceptives do not increase the incidence of
postmolar gestational trophoblastic disease or alter the pattern of
regression of hCG values
Frequent pelvic examinations are performed while hCG values are
elevated to monitor the involution of pelvic structures and to aid in
the early identification of vaginal metastases. Although pregnancies
after molar evacuation usually are normal gestations, pregnancy obscures
the value of monitoring hCG levels during this interval and may result
in a delayed diagnosis of postmolar malignant gestational trophoblastic
disease. A new intrauterine pregnancy should be ruled out on the basis
of hCG levels and ultrasonography, especially when there has been a long
delay in follow-up of serial hCG levels and noncompliance with
contraception. After completion of documented remission for 6-12 months,
women who desire pregnancy may discontinue contraception, and hCG
monitoring may be discontinued.
Patients with prior partial or complete
moles have a 10-fold increased risk (1-2% incidence) of a second
hydatidiform mole in a subsequent pregnancy.
Therefore, all future pregnancies should be evaluated by early obstetric ultrasonography.
Chemotherapy
Complete molar pregnancy is well recognized to have the potential for local invasion and distant spread. After evacuation, local uterine invasion occurs in about 15% and metastases in 4%. Complete molar pregnancy is usually divided into low and high risk for persistence based on signs and symptoms of marked trophoblastic proliferation at the time of evacuation, i.e.: hCG >100,000 mIU/Ml; excessive uterine enlargement; theca-lutein ovarian cyst >6 cm in diameter; older maternal age; a previous molar pregnancy. The risk of postmolar GTD is significant less with partial molar pregnancy and is seen in approximately 1-6%Prognosis
Table 1.
Gestational Trophoblastic Neoplasia (GTN)a,b
Stage
|
||||
I
|
Disease
confined to the uterus.
|
|||
II
|
GTN
extends outside of the uterus, but is limited to the genital structures
(adnexa, vagina, broad ligament).
|
|||
III
|
GTN
extends to the lungs, with or without known genital tract involvement.
|
|||
IV
|
All
other metastatic sites.
|
|||
Modified WHO Prognostic Scoring System as Adapted
by FIGOb
|
||||
Scores
|
0
|
1
|
2
|
4
|
Age
|
<40
|
≥40
|
–
|
–
|
Antecedent
pregnancy
|
mole
|
abortion
|
term
|
–
|
Interval
months from index pregnancy
|
<4
|
4–6
|
7–12
|
>12
|
Pretreatment
serum hCG (iu/1)
|
<103
|
103–104
|
104–105
|
>105
|
Largest
tumor size (including uterus)
|
<3
|
3–4 cm
|
≥5 cm
|
–
|
Site of
metastases
|
lung
|
spleen,
kidney
|
gastrointestinal
|
liver,
brain
|
Number
of metastases
|
–
|
1–4
|
5–8
|
>8
|
Previous
failed chemotherapy
|
–
|
–
|
single
drug
|
≥2
drugs
|
Ref:
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3279094/
http://www.cancer.gov/cancertopics/pdq/treatment/gestationaltrophoblastic/HealthProfessional/page3
- May Allah Bless our job and our patients.-Amin-
Labels:
GTD,
gynaecology,
Housemanship,
lesson 1,
operation,
teaching
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