Liu Yan
He Wujin3†- 1School of Nursing, Sun Yat-Sen University, Guangzhou, Guangdong, China
- 2Department of Nursing, Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, China
- 3Ward One, Department of Cardiovascular Medicine, Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, China
Introduction: Sheehan syndrome (SS) is a form of hypopituitarism caused by severe postpartum hemorrhage. It leads to premature dysfunction of the target organs affected by various hormone deficiencies, resulting in a range of clinical manifestations. The coexistence of SS and dilated cardiomyopathy is rare, and symptomatic treatment remains the main treatment approach. Here, we describe a case in which a MitraClip procedure was used to treat SS-associated cardiac insufficiency.
Case report: A 50-year-old woman with a history of SS and dilated cardiomyopathy was admitted to the hospital owing to worsening shortness of breath for one month, which had aggravated over the past day. Her laboratory findings were as follows: potassium 5.92 mmol/L, chloride 96.56 mmol/L, magnesium 1.08 mmol/L, triiodothyronine 0.69 nmol/L, free thyrogenic ammonia 2.44 pmol/L, and B-type natriuretic peptide precursor 23,904 pg/mL. Medical imaging revealed left atrial and left ventricular enlargement (left atrial size 39 mm, left ventricular diameter 52 mm); severe regurgitation of the second and tricuspid valves; bilateral pleural effusion; abdominal, pelvic, and pericardial effusion Despite repeated pharmacological treatment, the patient’s condition did not improve. Finally, she underwent atrial septal puncture followed by percutaneous mitral valve repair using a MitraClip. The left Atrial diameter (LAS) decreased from 39mm (pre-intervention) to 34mm (pre-discharge), and decreased to 24mm during the 9-month outpatient follow-up. The left ventricular ejection fraction (LVEF) increased from 31% (pre-intervention) to 46% during the 9-month outpatient follow-up, and the pulmonary artery systolic pressure (PASP) decreased from 52 mmHg (pre-intervention) to 26 mmHg during the 9-month outpatient follow-up.
Conclusion: The coexistence of Sheehan syndrome and dilated cardiomyopathy is rare. MitraClip intervention may be considered to treat severe mitral valve regurgitation due to dilated cardiomyopathy induced by Sheehan syndrome in cases where medical therapy is ineffective and the patient has significant symptoms of heart failure.
Introduction
Sheehan syndrome (SS) is a form of hypopituitarism caused by severe postpartum hemorrhage (1). This disorder was first described in 1939 by Sheehan and Murdoch (2). It leads to the dysfunction of target organs owing to hormonal deficiencies, resulting in a range of clinical manifestations (1). Acute SS usually occurs within two weeks after delivery and presents with various initial symptoms, including adrenal hypocorticosis, diabetes insipidus, hypothyroidism, and panhypopituitarism. When promptly diagnosed, appropriate treatment can be initiated to prevent complications (3). However, dilated cardiomyopathy is a rare and delayed presentation of SS. Owing to its hidden onset and difficulty in early detection, it often leads to irreversible myocardial enlargement and valvular heart disease (4).
In addition, repeated hospitalizations are required, as symptoms cannot be adequately controlled with hormone therapy and symptomatic supportive treatment alone. Herein, we report a case in which a MitraClip procedure was used to treat SS-associated cardiac insufficiency. Additionally, we review the relevant literature to provide a reference for the diagnosis and treatment of similar cases.
Case report
A 50-year-old woman was admitted to the hospital with shortness of breath persisting for one month, which had worsened over the past day. She had been diagnosed with SS 20 years ago following postpartum hemorrhage and had a history of hypothyroidism, hyperlipidemia, and fatty liver. Over the past month, she experienced shortness of breath and moderate symmetrical pitting edema in both lower limbs after physical activity. She had been previously diagnosed with dilated cardiomyopathy, valvular heart disease, and heart failure, for which she had received multiple treatments. On admission, her physical examination findings were as follows: body temperature 36.2°C, pulse 103 beats/min, respiratory rate 20 breaths/min, and blood pressure 102/70 mmHg.
The patient was conscious, anemic, and alert. There was no swelling of the tonsils, sclera, skin, or superficial lymph nodes. Auscultation revealed wet rales in both lungs. Cardiac examination showed an irregular rhythm, audible mitral valve sounds, and diastolic murmurs. The abdomen was distended but non-tender, with no rebound pain. The liver and spleen were not palpable below the costal margin, and there was no percussion pain in the liver, spleen, or kidney regions. Mobility dullness was negative, bowel sounds were normal, and moderate symmetrical pitting edema was present in both lower limbs.
Laboratory findings of the third on admission were as follows: potassium 5.92 mmol/L, chloride 96.56 mmol/L, magnesium 1.08 mmol/L, triiodothyronine 0.69 nmol/L, free thyroxine 2.44 pmol/L, and B-type natriuretic peptide precursor 23,904 pg/mL. The results of the patient’s three laboratory tests are summarized in Table 1.
Table 1. Normal ranges of laboratory tests and patient data across hospitalizations.
Medical imaging results revealed left atrial and left ventricular enlargement (left atrial size 39 mm, left ventricular diameter 52 mm); severe regurgitation of the second and tricuspid valves; bilateral pleural effusion; abdominal, pelvic, and pericardial effusion. The patient’s medical imaging findings are shown in Figure 1.
Figure 1. Changes in echocardiography examinations of the patient. (A–D) show the results of the echocardiography examinations of the patient on May 31, 2024, June 11, 2024, June 24, 2024, and February 14, 2025.
Upon admission, the patient was diagnosed with dilated cardiomyopathy with severe mitral valve insufficiency, moderate tricuspid valve insufficiency, acute exacerbation of chronic heart dysfunction (New York Heart Association, NYHA class IV), SS, arrhythmias with complete right bundle branch block, renal insufficiency, right pleural effusion, abdominal effusion, hyperacidemia, and abnormal liver function. She was treated with symptomatic supportive measures, such as anticoagulation, diuresis, gastric protection, correction of electrolyte disturbances, and hormone therapy. However, the patient was admitted to the hospital due to repeated shortness of breath. After about one year of hormone treatment with levothyroxine and hydrocortisone, about two months of diuretic treatment with furosemide or bumetanib, and dopamine-based cardiotonic drugs, the patients’ symptoms still could not be well relieved. After multidisciplinary team (MDTs) consultation, it was considered that repeated pharmacological treatment was ineffective, and MitraClip was ultimately chosen based on the patient’s symptoms and the results of echocardiography. This timeline of the events was shown in Figure 2. Following a comprehensive evaluation, the patient underwent atrial septal puncture and percutaneous mitral valve repair on June 24, 2024.
Figure 2. A timeline of the events. ss, Sheehan syndrome; MDTs, Multidisciplinary teams.
In this case, one clip was implanted in the patient. The MitraClip intervention process was mainly carried out in the cardiac catheterization laboratory. This includes inserting the guide tube through the right femoral vein into the atrium, locating the guide tube using transesophageal echocardiography and X-ray fluoroscopy images, sending the guide tube into the MitraClip forming clip delivery system through the guide tube, opening the MitraClip forming clip, and further adjusting its position. Then it was confirmed that the two arms of the MitraClip clip fell on the two leaflets of the left ventricle, the mitral regurgitation was significantly reduced, and the trans-valve pressure difference of the mitral valve was < 5 mm Hg. Finally, the MitraClip clip was released, the MitraClip clip delivery system and guide tube were removed, and the femoral vein and artery were closed by the vascular closure device.
Follow-up and outcomes
Postoperative follow-up cardiac ultrasound revealed mild mitral valve lobe regurgitation and improved heart function. The echocardiographic values of the patients underwent long-term and significant changes from pre-intervention to post-intervention. For example, Left Atrial diameter (LAS) decreased from 39mm (pre-intervention) to 34mm (pre-discharge), and decreased to 24mm during the 9-month outpatient follow-up. The left ventricular ejection fraction (LVEF) increased from 31% (pre-intervention) to 46% during the 9-month outpatient follow-up, and the pulmonary artery systolic pressure (PASP) decreased from 52 mmHg (pre-intervention) to 26 mmHg during the 9-month outpatient follow-up. The patient’s echocardiographic parameter changes are shown in Table 2. The laboratory reexamination results are shown in Table 1. The patient experienced no significant discomfort, and her overall condition improved. She was discharged on June 29, 2024, and underwent a follow-up evaluation at the outpatient clinic on November 8, 2024, and February 14, 2025. During the outpatient follow-up of the patients, the NYHA classification and the 6-minute walk test (6MWT) were evaluated. On July 21st, the 6MWT was 253m, which was NYHA class II. On November 8th, the 6MWT was 350m, and the cardiac function was NYHA class II. On February 14, 2025, the 6MWT was 515m, and the cardiac function was NYHA class II.
Table 2. Sheehan’s syndrome with echocardiographic parameter changes.
Discussion
With advancements in medical care, the incidence of SS has decreased. However, the improved survival rate of affected women has led to the emergence of long-term complications, with dilated cardiomyopathy being one of the most common. The exact mechanism underlying dilated cardiomyopathy in SS remains unclear.
Previous studies have suggested that cardiomyopathy after secondary adrenocortical hypofunction is mainly due to insufficient secretion of adrenocortical hormone (especially cortisol) caused by pituitary dysfunction, which not only affects the metabolic and electrophysiological functions of the heart but also disrupts water and electrolyte metabolism, contributes to hypotension, increases cardiac workload, and triggers inflammatory responses. These factors collectively increase the risk of dilated cardiomyopathy and contribute to the development of heart failure (5, 6).
Most patients with SS complicated by dilated cardiomyopathy are hospitalized for many years, with durations ranging from 2 to 24 years after delivery (Table 3). They primarily present with cardiac symptoms, such as dyspnea, respiratory distress, and bilateral lower-extremity edema (3, 7–13). These symptoms often make accurate differential diagnosis and therapeutic recovery challenging. Currently, the treatment for SS complicated by dilated cardiomyopathy mainly focuses on hormone replacement therapy, which requires long-term administration. However, in patients with multiple comorbidities, symptoms can be difficult to control, leading to frequent hospital visits and imposing significant psychological and economic burdens on both patients and their families. Therefore, identifying effective and timely strategies to alleviate the symptom burden of patients remains important.
Table 3. Sheehan’s syndrome with reversible dilated cardiomyopathy: treatment, and therapeutic response.
MitraClip intervention’s advantages over traditional surgery are less trauma and faster recorvery. Mitral valve clipping is a minimally invasive cardiovascular procedure primarily used to alleviate left atrial hypertension and heart failure symptoms caused by mitral regurgitation, which is common in SS accompanied by dilated cardiomyopathy and valve abnormalities (14). When varying degrees of mitral regurgitation are present, this procedure helps restore valve function by reducing the mobility of the mitral valve, thus decreasing the left atrial burden and improving cardiac pumping efficiency (15). In this case, the patient’s symptoms of SS complicated by dilated cardiomyopathy showed significant improvement at the 6-month follow-up. However, the MitraClip procedure is rarely used in patients with secondary dilated cardiomyopathy complicated by valvular heart disease. Its long-term efficacy and underlying mechanisms require further investigation and long-term follow-up to optimize treatment strategies.
In conclusion, although uncommon, MitraClip intervention may be considered to treat severe mitral valve regurgitation due to dilated cardiomyopathy induced by Sheehan syndrome in cases where medical therapy is ineffective and the patient has significant symptoms of heart failure.
Author contributions
LY: Conceptualization, Writing – original draft. HW: Investigation, Writing – original draft, Data curation, Resources. WH: Writing – original draft, Investigation, Data curation. ZM: Writing – review & editing. LF: Investigation, Conceptualization, Writing – original draft. YW: Writing – review & editing. ZQ: Supervision, Writing – review & editing.
Funding
The author(s) declare that financial support was received for the research and/or publication of this article. This work was supported by the Self-financed Scientific Research Projects of the Guangxi Autonomous Region Health and Wellness Commission (grant number Z-C20230857).
Acknowledgments
Self-financed Scientific Research Projects of the Guangxi Autonomous Region Health and Wellness Commission and the Affiliated Hospital of Guilin Medical University.
Conflict of interest
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
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Keywords: mitraclip, Sheehan syndrome, dilated cardiomyopathy, valvular insufficiency, case report
Citation: Yan L, Wujin H, Hairong W, Mei Z, Farong L, Wei Y and Qi Z (2025) MitraClip intervention for Sheehan syndrome complicated by dilated cardiomyopathy and valvular insufficiency: a case report and literature review. Front. Endocrinol. 16:1593741. doi: 10.3389/fendo.2025.1593741
Received: 14 March 2025; Accepted: 27 June 2025;
Published: 16 July 2025.
Edited by:
DeLisa Fairweather, Mayo Clinic Florida, United StatesReviewed by:
Giulia Iannaccone, Catholic University of the Sacred Heart, ItalyCopyright © 2025 Yan, Wujin, Hairong, Mei, Farong, Wei and Qi. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
*Correspondence: Zhang Qi, emhhbmdxNTY5QG1haWwuc3lzdS5lZHUuY24=
†These authors have contributed equally to this work