Ovarian Hyperstimulation Syndrome
4 min read
Ovarian hyperstimulation is a syndrome which usually occurs in women who are taking the fertility medications to boost the egg production, particularly in vitro fertilization (IVF) treatment. Since IVF medications aim at development of eggs in the ovary for fertilization, particularly ovulation, one cannot say for sure how much injectable medicine you might need. The excess of this medicine can result in too much of hormones in your ovary, further leading to ovarian hyperstimulation syndrome.
What Causes of Ovarian Hyperstimulation Syndrome?
The main cause of ovarian hyperstimulation syndrome (OHSS), is fertility drugs. Generally fertility drugs are used to produce egg sac but sometimes they can cause hyper stimulation of ovaries. This happens when presence of the drugs is more than what your body can handle. As a result, the level of hormones responsible for producing eggs in the ovary increases and too much hormones cause the ovaries to get swollen or enlarged. These enlarged ovaries then start releasing chemicals into the blood stream which ultimately start leaking fluid into the body.
Sometimes that leaked fluid reaches heart, lungs and various other organs and become a serious health problem resulting in grave consequences.
In majority of the cases it occurs during fertility treatment when an injection of human chorionic gonadotropin (hCG) is given. In very rare cases, OHSS can happens when women are taking oral medications during fertility treatments.
Symptoms Of Ovarian Hyperstimulation Syndrome (OHSS)
The common symptoms associated with OHSS is abdominal swelling, pain, nausea and vomiting, On the basis of clinical manifestation symptoms of OHSS are divided into three categories:
- Mild OHSS – women usually experience
- Mild abdominal swelling, pain or discomfort
- Mild nausea
- Diarrhea
- Vomiting
- Moderate OHSS – Most of the symptoms are same as mild OHSS but with greater intensity
- Increased abdominal pain
- Increased abdominal girth
- Nausea
- Urine is dark and very less
- Vomiting & diarrhea
- And sudden increase in weight
- Severe OHSS – In severe hyperstmulation symptoms become worse and you may experience
- Intense abdominal pain
- Rapid weight gain
- Marked abdominal distension
- Severe nausea and vomiting
- Urine has stopped or very less and much darker
- Respiratory difficulties
- Extreme thirst
These symptoms can often be noticed between 10 days of taking an injectable medication to induce ovulation. Ovarian hyperstimulation syndrome is less pronounced in women who take fertility drugs by mouth, such as clomiphene (Clomid, Serophene). In the event that you do become pregnant, these symptoms may last longer and may worsen as well.
What Are The Risks Of Ovarian Hyperstimulation Syndrome?
The Risk of OHSS is mainly to the women who-
- Are of very young age
- Have polycystic ovarian condition
- Take higher dose of gonadotropins
- Have previous history of OHSS
- Low weight
- Have multiple pregnancy(twins-triplets)
- A history of migraines or a previous episode of OHSS
In majority of the cases mild symptoms are observed in almost every women who are taking the fertility treatment but they generally disappear after sometime but you should consult your doctor if symptoms increase in intensity or persist for longer period of time.
Treating Ovarian Hyperstimulation Syndrome
The diagnosis of ovarian hyperstimulation syndrome is based on a physical exam, an ultrasound and a blood test. Increase in weight and waist size, bigger ovaries with large fluid-filled cysts and certain blood tests will enable your doctor to determine whether you have OHSS and the further course of action. The treatment is aimed at keeping you comfortable, and avoiding complications, very much so if you have conceived already. A week or two is all it takes to resolve OHSS unless you are pregnant. Pregnancy may increase your resolution time with OHSS.
- In mild cases – management is quite simple in mild cases –
- Drink lots of clear fluid like water and juices
- Avoid sexual intercourse
- Reduce difficult physical activities like lifting heavy objects and exercise
- In moderate cases – Basic management is similar to mild case like drinking plenty of water and avoiding sexual intercourse but apart from it there are few others steps which must be taken
- Go and see your doctor immediately
- Check your weight daily – if possible keep the proper record
- Record the urine frequency and color
- In severe cases – If you have severe symptoms of OHSS then seek immediate health advice from your doctor. It can be possible that you may need to be admitted to the hospital for monitoring and further treatment, including intravenous (IV) fluids. Hospitalization may only be required based on severity of symptoms, analgesic requirements and other social considerations like unavailability of support or assistance
Controlled Ovarian Hyperstimulation
Controlled ovarian hyperstimulation (COH) involves careful monitoring of fertility agents that are designed to induce ovulation through fertility medications via IVF. The release of multiple follicles can be used in in vitro fertilization (IVF). This can be achieved by either or both injectable or oral assisted fertility medications. For women with irregular menstruation cycles, COH aims at producing 1 mature follicle and restore normal ovulatory function. In a woman whose cycles are regular and ovulation happens every month, COH increases the pregnancy rates by producing 2-3 mature follicles every month. This is also known as a process to ‘superovulate’ the women, as pregnancy chances increase from one a month to 2 to 3 times a month. Though the success rate is to the tune of 20%, a lot is dependent on the age and fertility diagnosis of the couple.
Please keep in mind there is no specific treatment for OHSS and there is no treatment which can reverse the OHSS. Ovarian hyperstimulation syndrome generally resolves on its own within a week or two and treatment mostly include keeping you comfortable, decreasing ovarian activity and avoiding complications.
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