Surgical management of symptomatic right-sided Bochdalek hernias in adults: when is a minimally invasive approach appropriate?

Incidental discovery of a giant congenital diaphragmatic hernia in an adult: A case report and literature review

INTRODUCTION AND IMPORTANCE

Congenital diaphragmatic hernia (CDH) is rare, occurring in 1 in 2000 to 4000 live births, and is typically diagnosed in neonates. Bochdalek hernia is the most common type, usually presenting as a left-sided posterolateral defect. Adult presentations of CDH are uncommon and often incidental. This report discusses a young adult with an undiagnosed CDH, emphasizing the importance of clinical awareness.

CASE PRESENTATION

A 26-year-old man presented with flu-like symptoms and stable vital signs. He reported chronic postprandial shortness of breath that improved with standing. Physical examination revealed decreased breath sounds on the left side. A chest X-ray identified a left diaphragmatic hernia, confirmed by spiral chest computed tomography. Although advised to undergo surgery, the patient opted for discharge against medical advice.

CLINICAL DISCUSSION

Bochdalek hernia, comprising over 95 % of CDH cases, is usually left-sided due to a defect in the pleuroperitoneal membrane. Adults with CDH often present with nonspecific symptoms or the condition is discovered incidentally. Our patient adapted to his symptoms by standing after meals, which provided relief. Surgical intervention is recommended to prevent organ damage, with various techniques available, including open and endoscopic surgery. This case highlights the necessity of clinical vigilance in diagnosing CDH in adults.

CONCLUSION

Adult congenital diaphragmatic hernia, though rare, requires prompt surgical treatment to prevent organ damage. Recognizing subtle symptoms is crucial for diagnosis. This report contributes to the limited literature on adult-diagnosed CDH, stressing the need for clinical awareness and timely management.

Congenital Hernias in Adults: Bochdalek Hernias

Bochdalek hernias are a rare occurrence in adults and usually asymptomatic, resulting in incidental discovery. However, surgical intervention is recommended for both symptomatic and asymptomatic Bochdalek hernias due to the risk of acute morbidity and mortality. There are various possible surgical approaches that may be appropriate depending on the circumstance, with robotic repair becoming increasingly popular. To date, the rarity of the condition has limited the available data on postoperative outcomes.

Hiatal Hernia to Bochdalek: A Case Report

Hiatal hernias and Bochdalek hernias are two types of diaphragmatic hernias that present with similar symptoms. However, they differ in their etiology and anatomical location. In this case study, we present the clinical features and management of a patient who presented with symptoms suggestive of a hiatal hernia but was later diagnosed with a Bochdalek hernia. Our case has a 64-year-old female patient who presented with chronic obstructive pulmonary disease, hypertension, and gastroesophageal reflux disease. During her pulmonologist-ordered imaging, which included a CT scan, the report showed a large 8 cm hiatal hernia. Due to her condition, she was scheduled for a hiatal hernia repair, along with a transoral incisionless fundoplication (TIF) procedure. During the operation, a large defect was seen in the left hemidiaphragm with herniation of bowel loops into the chest cavity. It was confirmed to be a Bochdalek hernia. The surgeon proceeded to continue the laparoscopic repair, pulling the bowel back into the abdomen, and using the falciform ligament of the liver to buttress the diaphragm. The surgery was a success, and the patient had no postoperative complications. This case serves as a reminder that a high degree of suspicion is required for the diagnosis of Bochdalek hernias, especially in patients with atypical presentations or imaging findings suggestive of an alternative diagnosis, such as a hiatal hernia. The patient had chronic symptoms of various gastrointestinal and respiratory comorbidities, which should serve as a caution for clinicians to carefully consider the possibility of a Bochdalek hernia when evaluating patients with similar symptoms. This case study also illustrates the success of a minimally invasive surgical approach for repairing a Bochdalek hernia, with the use of laparoscopic techniques and using falciform ligament to support the diaphragm.

Case reports: a variety of clinical presentations and long-term evolution of Bochdalek hernias

Bochdalek hernias are the most common congenital diaphragmatic hernias, followed by Morgagni hernias. The failure of closure of the pleuroperitoneal membrane results in a posterolateral foramen, which can remain silent until adulthood. They remain a rare pathology with nearly a hundred cases published. Its clinical presentation is variable, making its diagnosis challenging for clinicians. Additionally, its symptoms are not necessarily representative of the content of the hernia. Its management is balanced between the abdominal and the thoracic approaches. However, no guidelines or algorithms are available to help surgeons in the decision-making process. We report here four consecutive cases of symptomatic Bochdalek hernias. Each case has a singular presentation, and we share how they were approached at our institution. In particular, this series shows no reoccurrence in 10+ years of follow-up in two cases and 20+ in one case, underlying the importance of surgical management when Bochdalek hernias are symptomatic.

Right-sided Bochdalek hernia in an adult: a case report

Bochdalek hernia (BH) is the most common type of congenital diaphragmatic hernia and is usually left-sided. It typically presents in neonates and diagnosis in adults is a rarity. To date only 34 reported cases of right-sided BH have been surgically managed in adults in literature. We review a 21-year-old female with a right-sided BH diagnosed as acute calculus cholecystitis and underwent laparoscopic cholecystectomy. The diagnosis of BH was made incidentally during surgery. The hernia did not have a sac with no hernial contents. It was treated via laparoscopic intracorporeal suturing and patient postoperative period was uneventful. Right-sided BH is rare. Regardless of the symptoms surgical treatment should be done to avoid risk of visceral strangulation.

A systematic review on diagnostics and surgical treatment of adult right-sided Bochdalek hernias and presentation of the current management pathway

Purpose

Bochdalek hernia is a congenital diaphragmatic hernia. The incidence in adults is estimated around 0.17%. Right-sided hernias are much more seldom than left-sided ones because of faster closure of the right pleuroperitoneal canal and the protective effect of the liver. Due to its rarity, there have been no large prospective or retrospective studies following great need for evidence-based diagnostics and treatment strategies. In this systematic review, we evaluated the current evidence of diagnostics, treatment, and follow-up of adult right-sided Bochdalek hernias.

Methods

According to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines a systematic literature review was conducted in PubMed and Cochrane library from 2004 to January 2021. The literature search included all studies with non-traumatic right-sided Bochdalek hernias. Literature on left- or both-sided, pregnancy-associated, pediatric, and other types of hernias were explicitly excluded. Quality assessment of the included studies was performed.

Results

Database search identified 401 records. After eligibility screening 41 studies describing 44 cases of right-sided non-traumatic Bochdalek hernias in adulthood were included for final analysis. Based upon the systematic literature review, the current diagnostic, therapeutic, and follow-up management pathway for this rare surgical emergency is presented.

Conclusion

This systematic review underlined that most studies investigating management of adult non-traumatic right-sided Bochdalek hernias are of moderate to low methodological quality. Hernias tend to occur more frequently in middle-aged and older women presenting with abdominal pain and dyspnea. A rapid and accurate diagnosis following surgical repair and regular follow-up is mandatory. High-quality studies focusing on the management of this rare entity are urgently needed.

Supplementary Information

The online version contains supplementary material available at 10.1007/s10029-021-02445-1.