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Ovarian hyperstimulation syndrome after IVF: signs and help

Other names: Синдром гиперстимуляции яичников, СГЯ, гиперстимуляция после ЭКО, осложнение стимуляции овуляции, вздутие живота после пункции, жидкость в животе после ЭКО

Ovarian hyperstimulation syndrome is a complication of infertility treatment that occurs after stimulation of ovulation, most often in in vitro fertilization programs. The ovaries respond excessively to drugs, enlarge, and the vessels become permeable: the liquid part of the blood leaves the vessels into the abdominal cavity. Bloating, heaviness and pain in the lower abdomen, rapid weight gain, nausea, and, in severe cases, shortness of breath and a decrease in the amount of urine appear. Mild forms are common and go away on their own; severe forms require hospitalization due to the risk of blood thickening and thrombosis. Knowing the warning signs is important for every woman undergoing stimulation.

🧾 МКБ-10: N98.1 🏥 Where it is treated: 7 Complication of stimulationFluid goes into the stomachRisk of thrombosis
👨‍⚕️ Which doctor
Reproductologist, obstetrician-gynecologist, anesthesiologist-resuscitator
🔬 Diagnostics
Ultrasound of the ovaries and abdominal cavity, complete blood count and hematocrit, albumin, creatinine, coagulogram
💊 Treatment
Drinking regimen and observation, hospitalization, infusions, fluid puncture, prevention of thrombosis
📈 Prognosis
Mild forms go away on their own, severe forms require hospitalization
⚠️ At risk
Young age, low weight, PCOS, high AMH, many follicles, pregnant
⏱ When to see a doctor
Urgent if symptoms increase

🚨 See a doctor urgently

With these signs do not wait for a scheduled appointment — the condition requires emergency care.

  • Быстрая прибавка веса более килограмма в сутки
  • Значительное увеличение и напряжение живота
  • Одышка, трудно сделать глубокий вдох, невозможно лежать
  • Резкое уменьшение количества мочи
  • Многократная рвота, невозможность пить
  • Боль, отёк и покраснение ноги, резкая боль в груди — вызывайте 103

What happens in the body

To obtain several eggs, the ovaries are stimulated with hormonal drugs. If the response is excessive, many follicles mature in the ovaries, and they produce substances that increase the permeability of the vascular wall. The liquid part of the blood leaves the vessels and accumulates in the abdominal cavity, less often in the chest. As a result, the abdomen enlarges, and the blood in the vessels thickens: the hematocrit increases, the risk of blood clots increases, and the blood supply to the kidneys worsens. The key triggering factor is the hCG hormone, both administered for the final maturation of eggs and produced during pregnancy.

  • Excessive ovarian response to stimulation
  • Increased vascular permeability
  • Fluid accumulation in the abdominal cavity
  • Blood thickening and risk of thrombosis
  • Decreased blood supply to the kidneys
  • Early form a few days after puncture
  • Late form during pregnancy

Who's at risk

The risk is higher in younger, lighter women, whose ovaries are especially responsive. The classic group is patients with polycystic ovary syndrome, high levels of anti-Mullerian hormone and a large number of antral follicles on ultrasound. The protocol itself is also important: high doses of drugs, the use of hCG for final maturation, a large number of eggs obtained. A separate factor is the onset of pregnancy, especially multiple pregnancy: your own hCG supports the process, and the syndrome develops later and is more severe. The doctor’s experience and individual selection of the protocol help prevent complications.

  • Age under 35 years and low body weight
  • Polycystic ovary syndrome
  • High anti-mullerian hormone
  • Many antral follicles
  • Large number of eggs obtained
  • Using hCG as a trigger
  • Current, especially multiple, pregnancy
  • Overstimulation in past attempts

Severities and symptoms

With a mild degree, bloating, heaviness and moderate pain in the lower abdomen, mild nausea are a concern; This condition occurs frequently and goes away in a few days. The average degree is manifested by a noticeable enlargement of the abdomen due to fluid, weight gain, vomiting, and ultrasound shows enlarged ovaries and free fluid. The severe form is a tense abdomen, shortness of breath due to the high position of the diaphragm and fluid in the chest cavity, a sharp decrease in urination, and thickening of the blood. It is with a severe form that the risk of thrombosis increases, so delay is unacceptable.

  • Bloating and heaviness in the lower abdomen
  • Pain that gets worse with movement
  • Nausea and vomiting
  • Fast weight gain
  • Increased abdominal volume
  • Shortness of breath and difficulty breathing while lying down
  • Decreased urine output
  • Weakness, dizziness, rapid pulse

Survey

A combination of complaints, examination data and tests is assessed. The weight and volume of the abdomen are monitored daily, and the amount of urine excreted is counted. The main thing in a blood test is the hematocrit, which reflects the degree of thickening, and the level of leukocytes. Albumin, electrolytes, creatinine and urea are checked to evaluate the kidneys, liver function tests and a coagulogram with an indicator reflecting the risk of thrombosis. Ultrasound shows enlarged ovaries with multiple cavities and the amount of free fluid in the abdominal cavity. In case of shortness of breath, the condition of the chest cavity is additionally assessed.

  • Control of weight, abdominal circumference and urine output
  • Complete blood count with hematocrit
  • Albumin and total protein
  • Creatinine, urea, electrolytes
  • Liver tests
  • Coagulogram and markers of thrombosis
  • Ultrasound of the ovaries and abdominal cavity
  • Assessment of pleural cavities for shortness of breath

Treatment and prevention

Mild forms are managed at home: rest without bed rest, sufficient drinking, food with a high protein content, daily weighing and contact with a doctor. Severe forms are treated in a hospital: solutions are administered to replenish blood volume, albumin if necessary, medications are prescribed to prevent thrombosis, and in case of a tense abdomen and shortness of breath, fluid is released through a puncture under ultrasound guidance. Prevention begins in advance: individual selection of doses, use of another trigger option instead of hCG, refusal to transfer embryos in this cycle with their freezing.

  • Rest without complete immobility, sufficient drinking
  • High Protein Meals
  • Daily weighing and urine output monitoring
  • Hospitalization for severe cases
  • Infusion therapy and albumin
  • Prevention of thrombosis as prescribed by a doctor
  • Ultrasound-guided puncture and fluid removal
  • Individual selection of stimulation protocol
  • Delayed embryo transfer with cryopreservation

Services and prices for this diagnosis

Based on official price lists of Tashkent clinics. The exact cost is determined after examination.

Frequently asked questions: Ovarian hyperstimulation syndrome

How many days after the puncture does hyperstimulation appear?+
The early form usually develops in the first 3–7 days after the introduction of the trigger and puncture of the follicles. Late occurs around the second week and is associated with the onset of pregnancy, since its own hCG supports the process. It is usually more severe.
What to do at home if you have a mild form?+
Drink enough fluids, including drinks with electrolytes, eat more protein foods, weigh yourself daily and measure your abdominal volume, and note the amount of urine. Avoid intense exercise and sexual activity due to the risk of ovarian torsion, but also do not lie still. Contact with a doctor is required.
When do you need to urgently go to the clinic?+
With a weight gain of more than a kilogram per day, a sharp increase in the abdomen, shortness of breath, inability to lie down, repeated vomiting, a noticeable decrease in urine, as well as pain or swelling of the leg and chest pain. The latter may mean thrombosis - call 103.
Is it possible to prevent this complication?+
It cannot be completely excluded, but the risk is significantly reduced by individual selection of doses, the use of an alternative trigger instead of hCG, and the refusal to transfer embryos in a stimulated cycle with their freezing. It’s worth talking to your fertility specialist about this in advance.
Does hyperstimulation affect future pregnancies?+
The complication itself, with timely treatment, usually does not prevent pregnancy from developing further. However, the first weeks may be more difficult due to the symptoms of the syndrome, so such patients are observed more often. The ovaries return to normal size within a few weeks.

The information on this page is for reference only and does not replace a doctor consultation. Only a qualified specialist can make a diagnosis and prescribe treatment after an in-person examination.

Where it is treated ovarian hyperstimulation syndrome в Ташкенте

При нарастающем вздутии и одышке после пункции фолликулов нужно немедленно связаться со своим репродуктологом. Clinics Ташкента с гинекологами и УЗИ:

Tashkent, Uchtepa district, Chilanzar 12 apt., st. M. Shaykhzoda, 7
M Olmazor 🚶 1.2 km
M Chilonzor 🚶 1.7 km
M Mirzo Ulug'bek 🚶 2.5 km
🚌 Nearest bus stop 🚶 260 m · buses: 8, 41
Mon–Fri:08:30–17:00
Open now
Tashkent, Учтепинский district, Chilonzor 12 block, st. М.Шайхзода, 7
M Olmazor 🚶 1.2 km
M Chilonzor 🚶 1.7 km
M Mirzo Ulug'bek 🚶 2.5 km
🚌 Nearest bus stop 🚶 310 m · buses: 8, 41
Mon–Fri:08:30–17:00
Open now
Tashkent, Olmazar Tumani, Kichik Khalka Yuli 5 "A" y
M Beruniy 🚶 500 m
M Tinchlik 🚶 1.1 km
M Chorsu 🚶 2.9 km
🚌 Nearest bus stop 🚶 190 m · buses: 31, 34
Mon–Fri:08:30–17:00
Open now
Tashkent, M. Ulugbek district, st. Kh. Abdullaeva, 132d
M Buyuk Ipak Yo'li 🚶 3.5 km
🚌 Nearest bus stop 🚶 90 m · buses: 5, 17, 49
Mon–Fri:00:00–24:00
Open now
Tashkent, Chilanzar district, ave.: Tursunkulova, 3d. Transport: from the Hamza metro stat...
M Alisher Navoiy 🚶 200 m
M G'afur G'ulom 🚶 700 m
M Paxtakor 🚶 750 m
🚌 Nearest bus stop 🚶 110 m · buses: 29, 53
Пн–Sun:00:00–24:00
Open now
Tashkent, M.Ulugbek district, Karasu-4 block, 3d
M Buyuk Ipak Yo'li 🚶 3.0 km
🚌 Nearest bus stop 🚶 240 m · buses: 49, 50
Mon–Fri:08:00–17:00
Open now
Tashkent, Shaykhontokhur district, st. Uygura, 1d
M Tinchlik 🚶 2.2 km
M Chorsu 🚶 2.6 km
M Beruniy 🚶 2.8 km
🚌 Nearest bus stop 🚶 120 m · buses: 35, 46, 53
Пн–Sun:00:00–24:00
Open now

ICD-10 code

Official international classification codes — these are used in medical records and statistics.

Other diseases: Obstetrics

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