Evolution of macroprolactinomas during pregnancy: A cohort study of 85 pregnancies

Disease Activity and Maternal-fetal Outcomes in Pregnant Women With Prolactinoma: A Systematic Review and Meta-analysis

CONTEXT

Women with prolactinoma are usually infertile but can conceive after surgery or treatment with dopamine agonists.

OBJECTIVE

To evaluate the impact of pregnancy in prolactinoma's natural course and in maternal-fetal outcomes.

DATA SOURCES

MEDLINE, EMBASE, LILACS, and CENTRAL.

STUDY SELECTION

Observational studies that included at least 3 pregnant women with prolactinoma.

DATA EXTRACTION

Two independent reviewers selected studies, assessed the risk of bias, and extracted data from the included studies.

DATA SYNTHESIS

Fifty-two studies were included, involving 2544 pregnancies in 1928 women. Stata Statistical Software 18 was used for proportional meta-analyses. The overall frequency of pregnant women on dopamine agonist treatment at conception was 97% and for either continuing or resuming treatment during pregnancy was 6%. The overall frequency of miscarriage was 10% (95% CI, 8-12), 3% for prematurity (95% CI, 2-5), 4% for symptomatic tumor growth during pregnancy (95% CI, 2-8), 4% for visual impairment (95% CI, 2-7), 6% for headache (95% CI, 4-9), and 4% for development of gestational diabetes (95% CI, 3-7). The overall frequency of congenital malformations was 2% (95% CI, 1-4), 2% for perinatal mortality (95% CI, 1-2), and 6% for low birth weight (95% CI, 3-9). Moreover, prolactinoma's size is a significant modifier for visual impairment.

CONCLUSION

Pregnancy in women with prolactinoma is safe in relation to fetal and maternal outcomes with low frequencies of miscarriage, prematurity, symptomatic growth, visual impairment, headache, congenital malformations, perinatal mortality, and low birth weight.

Cabergoline Use and Pregnancy Outcomes: A Systematic Review

INTRODUCTION

Lack of available expert guidelines leads clinicians to interrupt cabergoline treatment upon confirmation of pregnancy and consider switching to bromocriptine, which is more commonly used during pregnancy but is poorly tolerated.

OBJECTIVE

The objective of this review was to evaluate pregnancy outcomes, primarily major malformations and spontaneous abortions, after pregnancy exposure to cabergoline during the first trimester compared to pregnancy exposure to other comparators or no treatment.

METHODS

An Embase, Pubmed, Google Scholar, and ClinicalTrials.gov search was performed. Full articles published before October 27, 2022, and evaluating the effect of cabergoline on major malformations and spontaneous abortions were considered for inclusion in the review. Search results were manually screened and selected by two independent reviewers.

RESULTS

Totally, 2186 records were identified. After removal of duplicates and screening of abstracts, 65 full-text articles were consulted. Thirty articles corresponded to our selection criteria and were included in the systematic review. This review identified 1662 pregnancies exposed to cabergoline. Most studies did not find an increased risk of congenital malformations or spontaneous abortions with cabergoline compared to other comparators or no treatment. Overall study quality was low, and there was high heterogeneity between studies.

CONCLUSION

This review revealed no negative impact on major malformations and spontaneous abortions of cabergoline use in pregnancy compared to other comparators or no treatment. However, additional high-quality studies are needed to further study the safety of cabergoline use during pregnancy.

TRIAL REGISTRATION

PROSPERO, CRD42021256219 (October 19, 2021).

Pituitary Apoplexy: An Updated Review

Pituitary apoplexy (PA) is an acute, life-threatening clinical syndrome caused by hemorrhage and/or infarction of the pituitary gland. It is clinically characterized by the sudden onset of headache. Depending on the severity, it may also be accompanied by nausea, vomiting, visual disturbances, varying degrees of adenohypophyseal hormone deficiency, and decreased level of consciousness. Corticotropic axis involvement may result in severe hypotension and contribute to impaired level of consciousness. Precipitating factors are present in up to 30% of cases. PA may occur at any age and sometimes develops during pregnancy or the immediate postpartum period. PA occurs more frequently in men aged 50-60, being rare in children and adolescents. It can develop in healthy pituitary glands or those affected by inflammation, infection, or tumor. The main cause of PA is usually spontaneous hemorrhage or infarction of a pituitary adenoma (pituitary neuroendocrine tumor, PitNET). It is a medical emergency requiring immediate attention and, in many cases, urgent surgical intervention and long-term follow-up. Although the majority of patients (70%) require surgery, about one-third can be treated conservatively, mainly by monitoring fluid and electrolyte levels and using intravenous glucocorticoids. There are scoring systems for PA with implications for management and therapeutic outcomes that can help guide therapeutic decisions. Management of PA requires proper evaluation and long-term follow-up by a multidisciplinary team with expertise in pituitary pathology. The aim of the review is to summarize and update the most relevant aspects of the epidemiology, etiopathogenesis, pathophysiology, clinical presentation and clinical forms, diagnosis, therapeutic strategies, and prognosis of PA.

Challenges of Pituitary Apoplexy in Pregnancy

Our purpose is to provide new insights concerning the challenges of pituitary apoplexy in pregnancy (PAP) and the postpartum period (PAPP). This is a narrative review of the English literature using a PubMed search. The inclusion criteria were clinically relevant original studies (January 2012-December 2022). Overall, we included 35 original studies: 7 observational studies (selected cases on PA) and 28 case reports, including 4 case series (N = 49; PAP/PAPP = 43/6). The characteristics of PAP patients (N = 43) are as follows: maternal age between 21 and 41 (mean of 27.76) years; 21/43 subjects with a presentation during the third trimester (only one case during first trimester); average weak of gestation of 26.38; most females were prim gravidae; 19 (out of 30 patients with available data on delivery) underwent a cesarean section. Headache remains the main clinical feature and is potentially associated with a heterogeneous panel (including visual anomalies, nausea, vomiting, cranial nerve palsies, diabetes insipidus, photophobia, and neck stiffness). Pre-pregnancy medication included dopamine agonists (15/43) and terguride (1/43) in addition to subsequent insulin therapy for gestational diabetes (N = 2) and type 1 diabetes mellitus (N = 1). Overall, 29/43 females received the conservative approach, and 22/43 women had trans-sphenoidal surgery (TSS) (and 10/22 had the initial approach). Furthermore, 18/43 patients had a pituitary adenoma undiagnosed before pregnancy. Most PA-associated tumors were prolactinomas (N = 26/43), with the majority of them (N = 16/26) being larger than 1 cm. A maternal-fetal deadly outcome is reported in a single case. The characteristics of PAPP patients (N = 6) are as follows: mean age at diagnosis of 33 years; 3/6 subjects had PA during their second pregnancy; the timing of PA varied between 5 min and 12 days after delivery; headache was the main clinical element; 5/6 had no underlying pituitary adenoma; 5/6 patients were managed conservatively and 1/6 underwent TSS; pituitary function recovered (N = 3) or led to persistent hypopituitarism (N = 3). In conclusion, PAP represents a rare, life-threatening condition. Headache is the most frequent presentation, and its prompt distinction from other conditions associated with headache, such as preeclampsia and meningitis, is essential. The index of suspicion should be high, especially in patients with additional risk factors such as pre-gestation treatment with dopamine agonists, diabetes mellitus, anticoagulation therapy, or large pituitary tumors. The management is conservative in most cases, and it mainly includes corticosteroid substitution and dopamine agonists. The most frequent surgical indication is neuro-ophthalmological deterioration, although the actual risk of pituitary surgery during pregnancy remains unknown. PAPP is exceptionally reported. To our knowledge, this sample-case series study is the largest of its kind that is meant to increase the awareness to the benefit of the maternal-fetal outcomes from multidisciplinary insights.

Surgical management of pituitary adenoma during pregnancy

BACKGROUND

Although conservative treatment is typically recommended for pregnant patients with pituitary adenoma (PA), surgical treatment is occasionally necessary for those with acute symptoms. Currently, surgical interventions utilized among these patients is poorly studied.

AIM

To evaluate the surgical indications, timing, perioperative precautions and postoperative complications of PAs during pregnancy and to provide comprehensive guidance.

METHODS

Six patients with PAs who underwent surgical treatment during pregnancy at Peking Union Medical College Hospital between January 1990 and June 2021 were recruited for this study. Another 35 pregnant patients who were profiled in the literature were included in our analysis.

RESULTS

The 41 enrolled patients had acute symptoms including visual field defects, severe headaches or vision loss that required emergency pituitary surgeries. PA apoplexies were found in 23 patients. The majority of patients (55.9%) underwent surgery in the second trimester of pregnancy. A multidisciplinary team was involved in patient care from the preoperative period through the postpartum period. With the exception of 1 patient who underwent an induced abortion and 1 fetus that died due to a nuchal cord, 39 patients delivered successfully. Among them, 37 fetuses were healthy until the most recent follow-up.

CONCLUSION

PA surgery during pregnancy is effective and safe during the second and third trimesters. Pregnant patients requiring emergency PA surgery require multidisciplinary evaluation and healthcare management.

Italian Association of Clinical Endocrinologists (AME) and International Chapter of Clinical Endocrinology (ICCE). Position statement for clinical practice: prolactin-secreting tumors

Prolactinomas are the most frequent pituitary adenomas. Prolactinoma may occur in different clinical settings and always require an individually tailored approach. This is the reason why a panel of Italian neuroendocrine experts was charged with the task to provide indications for the diagnostic and therapeutic approaches that can be easily applied in different contexts. The document provides 15 recommendations for diagnosis and 54 recommendations for treatment, issued according to the GRADE system. The level of agreement among panel members was formally evaluated by RAND-UCLA methodology. In the last century, prolactinomas represented the paradigm of pituitary tumors for which the development of highly effective drugs obtained the best results, allowing to avoid neurosurgery in most cases. The impressive improvement of neurosurgical endoscopic techniques allows a far better definition of the tumoral tissue during surgery and the remission of endocrine symptoms in many patients with pituitary tumors. Consequently, this refinement of neurosurgery is changing the therapeutic strategy in prolactinomas, allowing the definitive cure of some patients with permanent discontinuation of medical therapy.

Outcomes of Patients with Macroprolactinoma Desiring Pregnancy: Follow-Up to 23 Years from a Single Center

Macroprolactinomas are rarely seen in women, and pregnancy is a risk factor for tumor growth. More studies are needed to determine appropriate management for macroprolactinoma and pregnancy. The aim of our study is to evaluate effects of treatment with dopamine agonists on macroadenoma before and during pregnancy, safety of dopamine agonists on fetus, post-pregnancy prognosis and long-term results. This is a single center retrospective study. Thirty-four pregnancies occurred in 21 patients under medical therapy. Prolactin levels, treatment results, tumor diameter changes, maternal-fetal outcomes, and disease activity were evaluated. The median tumor size at the time of diagnosis was 15 mm (10-28). Residual adenoma diameter was smaller in those receiving medical therapy longer than one year till the conception (p=0.047). Treatment was discontinued in 28 pregnancies after pregnancy confirmation, and 6 patients were exposed to bromocriptine throughout pregnancy. There was no symptomatic tumor growth during gestation. Among 27 live births, none of the fetuses developed neonatal malformation except for a case of Down syndrome. While early remission rate after pregnancy was 9.5%, this rate reached 33.3% at last follow-up visit. Lowered PRL levels at postpartum period (p=0.040), smaller tumor size at last follow-up visit (p=0.030), and total disappearance of tumor (p=0.026) were the contributor factors for remission. Use of dopamine agonist over one year may reduce the risk of symptomatic tumor growth during pregnancy in patients without invasive or large macroprolactinoma before pregnancy. Exposure to dopamine agonists seems generally safe for the fetus.