OOIR: Observatory of International Research

Papers

(The median citation count of Esophagus is 2. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-08-01 to 2025-08-01.)

Article	Citations
Modification of the lesser curvature incision line enhanced gastric conduit perfusion as determined by indocyanine green fluorescence imaging and decreased the incidence of anastomotic leakage followi	208
Clinical predictors of special type of esophageal cancer	93
Multicenter phase II study of trifluridine/tipiracil for esophageal squamous carcinoma refractory/intolerant to 5-fluorouracil, platinum compounds, and taxanes: the ECTAS study	64
Role of modified Glasgow Prognostic Score in patients with achalasia who underwent laparoscopic Heller-myotomy with Dor-fundoplication	54
Current status of prehabilitation before esophagectomy for patients with esophageal cancer among board-certified hospitals by the Japan Esophageal Society	49
A nationwide survey on the safety of cricothyrotomy: a multicenter retrospective study in Japan	43
Comprehensive registry of esophageal cancer in Japan, 2016	31
Multicenter retrospective analysis of complications and risk factors in endoscopic resection for esophageal cancer across Japan	30
Tumor response and survival outcomes of salvage concurrent chemoradiotherapy with three-dimensional conformal radiotherapy and 5-fluorouracil/platinum-based chemotherapy for postoperative locoregional	27
Impact of preoperative 6-minute walk distance on long-term prognosis after esophagectomy in patients with esophageal cancer	25
Outcomes of patients with esophageal squamous cell carcinoma who achieved a pathological complete response in the primary lesion by neoadjuvant treatment: a Japanese nationwide cohort study	22
Novel endoscopic approaches using the endocytoscopy for the target biopsy in esophageal eosinophilia	22
Esophagectomy for esophageal cancer in patients with a history of total pharyngolaryngectomy: a Japanese nationwide retrospective cohort study	21
Safety and feasibility of esophagectomy following combined neoadjuvant immunotherapy and chemotherapy for locally advanced esophageal cancer: a propensity score matching	19
Safety and efficacy of endoscopic submucosal dissection for superficial esophageal cancer with esophageal varices	18
Comprehensive registry of esophageal cancer in Japan, 2014	17
Pivotal trial of a biodegradable stent for patients with refractory benign esophageal stricture	17
Clinicopathological features and prognosis of gastric tube cancer after esophagectomy for esophageal cancer: a nationwide study in Japan	16
Manometric esophagogastric junction barrier metrics as predictors of gastroesophageal reflux	15
The totally mechanical Collard technique for cervical esophagogastric anastomosis reduces anastomotic stricture compared with triangular anastomosis in minimally invasive esophagectomy with gastric co	15
Clinical outcomes and prognostic factors for esophageal cancer in patients aged 80 years or older who were treated with definitive radiotherapy and chemoradiotherapy	14
Investigating the synergistic effects of immunochemotherapy in esophageal squamous cell carcinoma	14
Characteristics of multiple esophageal squamous cell carcinomas detected in the surveillance after endoscopic resection	13
Preoperative evaluation of oral hygiene may predict the overall survival of patients with esophageal cancer	13
Comparison of proton-based definitive chemoradiotherapy and surgery-based therapy for esophageal squamous cell carcinoma: a multi-center retrospective Japanese cohort study	12

Significance of dissection in each regional lymph-node station of esophageal cancer based on efficacy index and recurrence patterns after curative esophagectomy	12
Visceral obesity is associated with an increased risk of developing esophago-gastric junctional adenocarcinoma in Japan: a population-based case–control study in Akita Prefecture	12
Early postoperative weight loss is associated with poor prognosis in patients with esophageal cancer	11
The impact of time to postoperative recurrence on the prognosis of patients with esophageal cancer post recurrence: exploratory analysis of OGSG 1003	11
Prognostic impact of desmoplastic reaction in esophageal squamous cell carcinoma patients with neoadjuvant therapy	11
Low skeletal muscle mass contributes to the prognosis of patients with superficial esophageal cancer treated with definitive chemoradiotherapy	11
Saliva secretion is reduced in mild reflux esophagitis patients	11
Efficacy of sternocleidomastoid muscle flap in reducing anastomotic mediastinal/pleural cavity leak	11
Prognostic value of 18F-fluorodeoxyglucose uptake in the bone marrow on pretreatment positron emission tomography/computed tomography in patients with esophageal cancer who underwent esophagectomy	11
Endoscopic vacuum therapy for post-esophagectomy anastomotic dehiscence as rescue treatment: a single center case series	11
Evaluating the discrepancies between evidence-based and community standard practices in the endoscopic diagnosis of esophageal squamous cell carcinoma: a survey study	10
Ramelteon and suvorexant for postoperative delirium in elderly patients with esophageal cancer	10
Comparison and validation of the Japanese classification 12th edition and American joint committee on cancer 8th edition on intrathoracic esophageal squamous cell carcinoma	10
Prognostic impact of endoscopic response evaluation after neoadjuvant chemotherapy for esophageal squamous cell carcinoma: a nationwide validation study	10
Proposal for T3 classification of esophagogastric junction carcinoma based on the interconnection of extramural anatomical structures	10
Protective effect of rosuvastatin against the formation of benign esophageal stricture	10
Neutrophil-to-lymphocyte ratio change predicts histological response to and oncological outcome of neoadjuvant chemotherapy for esophageal squamous cell carcinoma	9
Effectiveness of taxanes following nivolumab in patients with advanced esophageal squamous cell carcinoma: a retrospective chart review of patients in ATTRACTION-3	9
Distal esophageal wall thickness correlates with dysphagia in adult patients with eosinophilic esophagitis	9
Efficacy of a novel small-caliber therapeutic endoscope in peroral endoscopic myotomy for esophageal motility disorders: a propensity score matching analysis	8
Fistula closure technique using an esophageal stent and fixation method for gastrointestinal-airway fistula after esophageal cancer surgery	8
Achalasia: laparoscopic Heller myotomy with fundoplication versus peroral endoscopic myotomy—a systematic review and meta-analysis	8
Esophageal cancer practice guidelines 2022 edited by the Japan esophageal society: part 1	8
First-line pembrolizumab plus chemotherapy for advanced/metastatic esophageal cancer: 1-year extended follow-up in the Japanese subgroup of the phase 3 KEYNOTE-590 study	8
Correlation between TXNRD1/HO-1 expression and response to neoadjuvant chemoradiation therapy in patients with esophageal squamous cell carcinoma	7
Association of gastric myotomy length in peroral endoscopic myotomy (POEM) with gastro-esophageal junction distensibility measured by Endoluminal Functional Lumen Imaging Probe (EndoFLIP)	7
Refining postoperative monitoring of recurrent laryngeal nerve injury in esophagectomy patients through transcutaneous laryngeal ultrasonography	7
Risk factors and prognosis for esophageal fistula in patients with esophageal squamous cell carcinoma during radiotherapy	7
A phase II study of S-1 therapy for patients with advanced and recurrent esophageal cancer resistant or intolerable to fluorouracil, platinum, and taxane therapy (OGSG 1404)	7
Risk of fractures in individuals with eosinophilic esophagitis: nationwide population-based cohort study	7
Predictors of technical difficulty for trainees in esophageal endoscopic submucosal dissection	7
Phase II study of BKM120 in patients with advanced esophageal squamous cell carcinoma (EPOC1303)	7
Relationship between esophageal achalasia subtypes and esophageal clearance	7
Risk factors for upper extremity deep vein thrombosis after esophagectomy for esophageal cancer in retrosternal reconstruction	7
Correction: Comparison of proton-based Definitive chemoradiotherapy and surgery-based therapy for esophageal squamous cell carcinoma: a multi-center retrospective Japanese cohort study	7
Outcomes of esophagectomy for patients with esophageal squamous cell carcinoma accompanied by recurrent laryngeal nerve palsy at diagnosis	6
Significance of chemotherapy-free interval and tumor regression grade in patients with recurrent esophageal squamous cell carcinoma receiving chemotherapy with fluorouracil and platinum after esophage	6
Comprehensive complication index as a prognostic factor in minimally invasive esophagectomy for esophageal squamous cell carcinoma	6
The relationship between the esophageal endoscopic submucosal dissection technical difficulty and its intraoperative process	6
Critical swallowing functions contributing to dysphagia in patients with recurrent laryngeal nerve paralysis after esophagectomy	6
Usefulness of endoscopic ultrasound in predicting treatment efficacy of salvage endoscopic therapy for local failure after chemoradiotherapy for esophageal squamous cell carcinoma	6
Determinants of reflux perception in patients with non-erosive reflux disease who have reflux-related symptoms on potassium-competitive acid blocker therapy	5
Handgrip strength predicts early postoperative dysphagia after thoracoscopic–laparoscopic esophagectomy in male patients with esophageal cancer	5
Oral metronomic chemotherapy after definitive chemoradiation in esophageal squamous cell carcinoma: a randomized clinical trial	5
Influence of laparoscopy-aided gastrostomy on gastroesophageal reflux in neurologically impaired patients using multichannel intraluminal impedance pH measurements	5
The treatment effects of acotiamide in esophagogastric outflow obstruction: a prospective longitudinal observational study	5
Association between the COVID-19 pandemic and short-term outcomes after esophagectomy for esophageal cancer in facilities with and without board-certified esophageal surgeons: a nationwide retrospecti	5
Association between ABCC2 polymorphism and hematological toxicity in patients with esophageal cancer receiving platinum plus 5-fluorouracil therapy	5
Impact of pre-diabetes, well-controlled diabetes, and poorly controlled diabetes on anastomotic leakage after esophagectomy for esophageal cancer: a two-center retrospective cohort study of 1901 patie	5
Differential prognostic significance of sarcopenia in metastatic esophageal squamous and adenocarcinoma	5

Health-related quality of life after esophagectomy in patients with esophageal cancer	5
Timing of the infusion of nivolumab for patients with recurrent or metastatic squamous cell carcinoma of the esophagus influences its efficacy	5
Relationship between gut microbiome Fusobacterium nucleatum and LINE-1 methylation level in esophageal cancer	5
Incidence of delayed gastric conduit emptying in patients undergoing esophagectomy: a systematic review and meta‑analysis	5
Simultaneous regulation of ferroptosis suppressor protein 1 and glutathione peroxidase 4 as a new therapeutic strategy of ferroptosis for esophageal squamous cell carcinoma	5
Concurrent chemoradiotherapy using proton beams can reduce cardiopulmonary morbidity in esophageal cancer patients: a systematic review	5
Influence of patient position in thoracoscopic esophagectomy on postoperative pneumonia: a comparative analysis from the National Clinical Database in Japan	5
Ineffective esophageal motility in Chicago Classification version 4.0 better predicts abnormal acid exposure	5
Usefulness of the aldehyde breath test for predicting metachronous recurrence in patients with esophageal squamous cell carcinoma and hypopharyngeal squamous cell carcinoma	5
Feasibility and safety of endoscopic submucosal dissection for superficial cancer of the remnant esophagus after esophagectomy	5
Comparison of the subtotal and narrow gastric conduit for cervical esophagogastrostomy after esophagectomy in esophageal cancer patients: a propensity score-matched analysis	5
Impact of MRI on the post-therapeutic diagnosis of T4 esophageal cancer	5
Esophageal wall thickness on CT scans: can it predict the T stage of primary thoracic esophageal squamous cell carcinoma?	5
Efficacy of laparoscopic fundoplication in patients with chronic cough and gastro-oesophageal reflux	4
Comprehensive registry of esophageal cancer in Japan, 2015	4
Efficacy and safety of peroral endoscopic myotomy in 100 older patients	4
Evaluating the discrepancies between evidence-based and community standard practices in the endoscopic examination of Barrett’s esophagus: a nationwide survey in Japan	4
Real-world treatment patterns and outcomes in Japanese patients with cervical esophageal cancer	4
Preoperative docetaxel, cisplatin, and 5-fluorouracil for resectable locally advanced esophageal and esophagogastric junctional adenocarcinoma	4
A discrete choice experiment to assess treatment preferences for patients with esophageal cancer in Japan	4
Risk prediction of esophageal squamous cell carcinoma recurrence in patients who underwent esophagectomy after receiving neoadjuvant treatment: a nationwide retrospective study in Japan	4
Second-line pembrolizumab versus chemotherapy in Japanese patients with advanced esophageal cancer: subgroup analysis from KEYNOTE-181	4
Outcomes of transhiatal colon bypass with or without esophagectomy for establishing continuity after corrosive esophageal burns in pediatric patients	4
Usefulness of wearable fitness tracking devices in patients undergoing esophagectomy	4
Changes in and clinical utility of maximum phonation time and repetitive saliva swallowing test scores after esophagectomy	4
Is oropharyngoesophageal scintigraphy the method of choice for assessing dysphagia in systemic sclerosis? A single center experience	4
Japanese Classification of Esophageal Cancer, 12th Edition: Part II	4
The impact of surgeon specialty and technique on outcomes after esophageal dilation: a systematic review	4
Remarkable response as a new indicator for endoscopic evaluation of local efficacy of non-surgical treatments for esophageal cancer	4
Two onset types of achalasia and the long-term course to diagnosis	4
The impact of weight loss during neoadjuvant chemotherapy on postoperative infectious complications and prognosis in patients with esophageal cancer: exploratory analysis of OGSG1003	4
Implication of changes in PD-L1 expression during neoadjuvant chemotherapy with docetaxel, cisplatin, and 5-fluorouracil (DCF) regimen in esophageal squamous cell carcinoma	4
Fruit and vegetable consumption and risk of esophageal cancer in the Asian region: a systematic review and meta-analysis	3
Transparency-enhancing technology allows the three-dimensional assessment of esophageal carcinoma obtained by endoscopic submucosal dissection	3
Microscopic venous invasion is a predictor of prognosis in patients with esophageal squamous cell carcinoma undergoing ineffective neoadjuvant chemotherapy and surgery	3
Blue laser imaging identifies endoscopic findings corresponding to metachronous esophageal squamous cell carcinoma	3
Clinical use of mean nocturnal baseline impedance and post-reflux swallow-induced peristaltic wave index for the diagnosis of gastro-esophageal reflux disease	3
The fragility of significant results from randomized controlled trials in esophageal surgeries	3
Detection of pathologic complete response using deep neural network-based endoscopic evaluation in patients with esophageal cancer receiving neoadjuvant chemotherapy: a nationwide multicenter retrospe	3
Preoperative 3D-CT evaluation of the bronchial arteries in transmediastinal radical esophagectomy for esophageal cancer	3
Initial reduction of the primary tumor or lymph nodes: which is the better prognostic factor in patients with esophageal squamous cell carcinoma receiving neoadjuvant chemotherapy followed by surgery?	3
Porphyromonas gingivalis levels correlate with TLR4 expression status and prognosis after esophagectomy for advanced thoracic esophageal squamous cell carcinoma	3
Second-line tislelizumab versus chemotherapy in Japanese patients with advanced or metastatic esophageal squamous cell carcinoma: subgroup analysis from RATIONALE-302	3
Factors of technical difficulty in conventional and traction-assisted esophageal endoscopic submucosal dissection	3
Outcome of sequential dilatation in achalasia cardia patients: a prospective cohort study	3
Characteristics of patients with esophageal motility disorders on high-resolution manometry and esophagography—a large database analysis in Japan	3
Correction to: Esophageal cancer practice guidelines 2017 edited by the Japan Esophageal Society: part 1 and Part 2	3
Multimodal deep-learning model using pre-treatment endoscopic images and clinical information to predict efficacy of neoadjuvant chemotherapy in esophageal squamous cell carcinoma	3
Correction: Implication of changes in PD-L1 expression during neoadjuvant chemotherapy with docetaxel, cisplatin, and 5-fluorouracil (DCF) regimen in esophageal squamous cell carcinoma	3
Lymph-node ratio as a risk factor for recurrence following neoadjuvant docetaxel, cisplatin, and 5-fluorouracil therapy for locally advanced esophageal squamous cell carcinoma	3
Efficacy and safety of per-oral endoscopic myotomy in non-achalasia esophageal motility disorders: a systematic review and meta-analysis	3
Lymph node metastasis and treatment outcomes of endoscopic submucosal dissection for superficial spreading esophageal squamous cell carcinoma ≥ 50 mm in size	3
Low anti-CFL1 antibody with high anti-ACTB antibody is a poor prognostic factor in esophageal squamous cell carcinoma	3
The use of drugs to prevent postoperative delirium in elderly patients with radical esophagectomy	3
Surgical outcomes of reconstruction using the gastric tube and free jejunum for cervical esophageal cancer: analysis using the National Clinical Database of Japan	3
Association between accelerometer-measured light-intensity physical activity and tumor regression for male patients with esophageal cancer receiving neoadjuvant therapy: a retrospective cohort study	3
Esophageal dysmotility in patients with eosinophilic esophagitis: pathogenesis, assessment tools, manometric characteristics, and clinical implications	2
A nationwide validation of the prognostic impact of pathological response and the distribution of recurrence patterns in responders after neoadjuvant chemotherapy for esophageal squamous cell carcinom	2
Novel pathological staging for patients with locally advanced esophageal squamous cell carcinoma undergoing neoadjuvant chemotherapy followed by surgery	2
Esophageal mast cells may be associated with the perception of symptoms in patients with eosinophilic esophagitis	2
Endoscopic imaging modalities for diagnosing the invasion depth of superficial esophageal squamous cell carcinoma: a systematic review	2
Exploring predictive biomarkers of efficacy and survival with nivolumab treatment for unresectable/recurrent esophageal squamous cell carcinoma	2
Usefulness of the preoperative inflammation-based prognostic score and the ratio of visceral fat area to psoas muscle area on predicting survival for surgically resected adenocarcinoma of the esophago	2
A message from the new editor-in-chief 2024	2
Prognostic impact of postoperative long-term skeletal muscle mass reduction after esophagectomy for esophageal cancer	2
Among females older than 50 years, saliva secretion is significantly lower in non-erosive reflux disease patients than in healthy controls	2
Letter to the editor: preoperative evaluation of oral hygiene may predict the overall survival of patients with esophageal cancer	2
Biased expression of mutant alleles in cancer-related genes in esophageal squamous cell carcinoma	2
A simpler diagnostic algorithm of the Japan Esophageal Society classification for Barrett’s esophagus-related superficial neoplasia	2
Outcome research on esophagectomy analyzed using nationwide databases in Japan: evidences generated from real-world data	2
First-line nivolumab plus ipilimumab or chemotherapy versus chemotherapy alone in advanced esophageal squamous cell carcinoma: a Japanese subgroup analysis of open-label, phase 3 trial (CheckMate 648/	2
p53 and Ki-67 combined with periodic acid-Schiff staining for the diagnosis of early stage esophageal squamous cell carcinoma lesions in biopsy specimens	2
Stepwise innovation of anesthesia through endotracheal intubation during esophagectomy for cancer	2
Safety and short-term efficacy of preoperative FOLFOX therapy in patients with resectable esophageal squamous cell carcinoma who are ineligible for cisplatin	2
Outcomes of solitary postoperative recurrence of esophageal squamous cell carcinoma diagnosed with FDG-PET/CT and treated with definitive radiation therapy	2
Esophageal motility disorders missed during endoscopy	2
A phase 3, randomized, double-blind, multicenter, placebo-controlled study of S-588410, a five-peptide cancer vaccine as an adjuvant therapy after curative resection in patients with esophageal squamo	2
Is it meaningful to add mesh reinforcement to laparoscopic fundoplication for esophageal hiatal hernias in the patients with high risk of hiatal hernia recurrence?	2
Impact of pulmonary vein anatomy and left atrial size on postoperative atrial fibrillation after esophagectomy for esophageal cancer	2
Effectiveness of prehabilitation during neoadjuvant therapy for patients with esophageal or gastroesophageal junction cancer: a systematic review	2