{"id":75066,"date":"2018-11-19T00:00:00","date_gmt":"2018-11-19T00:00:00","guid":{"rendered":"https:\/\/www.fertilitysmarts.com\/2018\/11\/19\/what-you-need-to-know-about-ovarian-hyperstimulation-syndrome-ohss"},"modified":"2023-11-10T21:06:03","modified_gmt":"2023-11-10T21:06:03","slug":"what-you-need-to-know-about-ovarian-hyperstimulation-syndrome-ohss","status":"publish","type":"post","link":"https:\/\/www.fertilitysmarts.com\/what-you-need-to-know-about-ovarian-hyperstimulation-syndrome-ohss\/2\/1463","title":{"rendered":"What you need to know about Ovarian Hyperstimulation Syndrome (OHSS)"},"content":{"rendered":"
Complications from fertility treatments are rare; nevertheless, some people do experience side effects. Anyone undergoing ovarian stimulation either for in vitro fertilization (IVF),<\/a> egg freezing, or egg donation<\/a>, is at risk of developing ovarian hyperstimulation syndrome (OHSS), a rare but potentially serious side effect of fertility treatments.<\/p>\n Because of this, It\u2019s to your advantage to be informed and on the lookout for symptoms to bring to your doctor\u2019s attention<\/p>\n OHSS is caused by the presence of multiple ovarian cysts in the ovaries that can occur after a robust response to IVF injections.<\/p>\n OHSS is characterized by high levels of vascular endothelial growth factor (VEGF) that gets released after taking the final injection of hCG during IVF.<\/p>\n The sustained, high levels of VEGF, along with estrogen and progesterone, lead to the dilation of blood vessels in the body causing fluid to shift out of the bloodstream and into the abdominal cavity, or in more severe cases, the lung cavity.<\/p>\n Even though a woman with OHSS drinks plenty of fluids, she can become severely dehydrated. As a result, the blood becomes thickened leaving her at risk for blood clots in the legs and lungs. <\/span><\/p>\n Related:<\/strong><\/span><\/p>\n The symptoms of OHSS may be mild, moderate, or severe and can be classified as:<\/span><\/p>\n The accumulation of fluid in the abdominal cavity can be very uncomfortable and cause bloating, and sometimes breathlessness. In severe cases, the fluid enters the lungs and causes respiratory distress.<\/p>\n This is why it\u2019s very important to inform your doctor if you have any of the following symptoms:<\/p>\n All of the signs of mild OHSS plus:<\/p>\n Ultrasound evidence of ascites (abnormal build-up of fluid in the abdomen.)<\/p>\n<\/li>\n<\/ul>\n All of the signs of mild and moderate OHSS plus:<\/p>\n Mild or moderate OHSS usually resolves within a few days unless pregnancy occurs, which may delay recovery.<\/span><\/p>\n <\/span><\/p>\n Because the symptoms of OHSS are exacerbated by pregnancy, sometimes a \u201cfreeze all\u201d cycle<\/a> is the safest option during an IVF cycle. <\/span>In this case, all the embryos are frozen and a transfer is delayed until full recovery.<\/span><\/p>\n Some women are more at risk than others of developing this complication. Women with <\/span>polycystic ovary syndrome (PCOS)<\/span> are most at risk because they have many tiny follicles present that can respond to the stimulation medicine. <\/span>Other women at risk are those who have:<\/span><\/p>\n An individual’s risk should be assessed by a doctor ahead of starting an IVF cycle to adjust the starting dose of stimulation medication accordingly. <\/span><\/p>\n Additionally, the doctor will do regular ultrasound scans of the ovaries during the stimulation phase and monitor the circulating estrogen levels as they rise. <\/span><\/p>\n If the blood estrogen level is rising too high or too quickly, the doctor can reduce the dose of FSH medication or “coast” the treatment by stopping the FSH injections for a few days. This will give the ovaries a break from being over-stimulated and help to reduce the chance of OHSS. Symptoms of mild OHSS, such as bloating are a common side effect of ovarian stimulation for IVF. The symptoms are easily managed with over-the-counter pain relievers, dietary changes, and increased fluid intake.<\/p>\n Severe OHSS affects around 1 to 5%<\/a> of cycles and is managed with medical help.<\/p>\n Treatment usually involves keeping you comfortable until symptoms subside, which can take approximately 1 to 2 weeks or longer if you are pregnant. Your doctor may also recommend:<\/p>\n For more severe cases, the following may be required:<\/p>\n Prevention is better than cure, and your doctor should monitor the stimulation phase of the IVF cycle carefully. Ultrasounds and blood tests measure the ovaries\u2019 response to the stimulation drugs. <\/span><\/p>\n The dose will be lowered if the estrogen levels become too high or you may take a break from injections for a day or two. It is better to start with a lower dose and add extra FSH during ovarian stimulation than start too high and be at risk for complications. <\/span><\/p>\n If the ovarian response is extremely high the doctor might choose to cancel the cycle altogether and start again with a lower dose next time.<\/span><\/p>\n Read: <\/strong><\/span>IVF Stimulation Protocols <\/strong><\/span><\/a><\/p>\n Once a high ovarian response has been detected, a different type of <\/span>trigger<\/span><\/a> medication may be recommended. Usually, an <\/span>hCG<\/span> trigger shot is taken when the follicles are big enough for egg retrieval, but if there is a risk of hyperstimulation the doctor may give you an agonist (Lupron) trigger before the egg collection to induce an LH surge (this can only be done in certain types of stimulation cycles where the patient has not been <\/span>down-regulated<\/span> with Lupron before the cycle started). <\/span><\/p>\nWhat is OHSS?<\/span><\/h2>\n
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What are the Symptoms of OHSS?<\/span><\/h2>\n
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Mild OHSS<\/h3>\n
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Moderate OHSS<\/h3>\n
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Severe OHSS<\/h3>\n
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OHSS & Pregnancy<\/h3>\n
Who is at risk?<\/h2>\n
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\n<\/span><\/p>\nHow common is OHSS?<\/h2>\n
At-Home Treatment of Mild OHSS<\/h2>\n
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Clinical Treatment of OHSS<\/h2>\n
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How can OHSS be prevented?<\/span><\/h2>\n