SynthesisEsophagus : official journal of the Japan Esophageal Society2020
Pseudoachalasia: a systematic review of the literature.
Synthesis in Esophagus : official journal of the Japan Esophageal Society, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
24 citing papers in PubMed, 1 synthesis or guideline pooled it, 43 citations in OpenAlex.
- Global trends in incidence and prevalence of achalasia, 1925-2021: A systematic review and meta-analysis.United European gastroenterology journal · 2024Pooled it
- Clinical Characteristics and Novel Manometric Features of Pseudoachalasia: Identification of Loss of Respiratory Variation in Lower Esophageal Sphincter Pressure.JGH open : an open access journal of gastroenterology and hepatology · 2026Article
- RareInternational journal of molecular sciences · 2026Article
- Characteristic pathological findings of achalasia behind unresectable esophageal cancer with pathological complete response after chemotherapy: a case report and literature review.BMC gastroenterology · 2026Review
- Not Quite Achalasia: Getting to the GIST of it.Digestive diseases and sciences · 2026Article
- Pseudoachalasia due to Distal Esophageal Squamous Cell Carcinoma in an Elderly Patient: Clinical Insights.Clinical case reports · 2026Article
- Triple Trouble: Hepatitis B-related Cirrhosis With Hodgkin Lymphoma-Associated Paraneoplastic Pseudoachalasia.Cureus · 2026Article
- Navigating Diagnostic Challenges in Pseudoachalasia: A Case Study of Esophagogastric Junction Adenocarcinoma.The American journal of case reports · 2025Article
- Unmasking systemic mastocytosis: a case of gastrointestinal involvement misdiagnosed as achalasia.Journal of surgical case reports · 2025Article
- Pseudoachalasia as first manifestation of a diffusely infiltrative esophageal squamous cell carcinoma: A case report.World journal of gastrointestinal oncology · 2025Article
- Article
- Late Onset of Pseudoachalasia in Anti-Hu-Associated Syndrome.Case reports in gastrointestinal medicine · 2025Article
- Diagnosis and Monitoring of Achalasia Utilizing Point-of-Care Ultrasound (POCUS): A Case Report.Cureus · 2025Article
- Article
- Abnormal performance of peroral endoscopic myotomy (POEM): a case misdiagnosed as achalasia of cardia.Journal of cardiothoracic surgery · 2024Article
- Modern insights into the pathophysiology and treatment of pseudoachalasia.Langenbeck's archives of surgery · 2024Review
- Article
- Modern Achalasia: Diagnosis, Classification, and Treatment.Journal of neurogastroenterology and motility · 2023Review
- Mixed Esophageal Disease (MED): A New Concept.Digestive diseases and sciences · 2023Review
- Gastrointestinal Stromal Tumor Presenting as Food Impaction and Pseudo-Achalasia.ACG case reports journal · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Pseudoachalasia, also known as secondary achalasia, is a clinical condition mimicking idiopathic achalasia but most commonly caused by malignant tumors of gastroesophageal junction (GEJ). Our aim was to systematically review and present all available data on demographics, clinical features, and diagnostic modalities involved in patients with pseudoachalasia. A systematic search of literature published during the period 1978-2019 was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines (end-of-search date: June 25th, 2019). Two independent reviewers extracted data with regards of study design, interventions, participants, and outcomes. Thirty-five studies met our inclusion criteria and were selected in the present review. Overall, 140 patients with pseudoachalasia were identified, of whom 83 were males. Mean patient age was 60.13 years and the mean weight loss was 13.91 kg. A total of 33 (23.6%) patients were wrongly 'treated' at first for achalasia. The most common presenting symptoms were dysphagia, food regurgitation, and weight loss. The median time from symptoms' onset to hospital admission was 5 months. Most common etiology was gastric cancer (19%). Diagnostic modalities included manometry, barium esophagram, endoscopy, and computed tomography (CT). Pseudoachalasia is a serious medical condition that is difficult to be distinguished from primary achalasia. Clinical feature assessment along with the correct interpretation of diagnostic tests is nowadays essential steps to differentiate pseudoachalasia from idiopathic achalasia.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.