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 2021-09-01 to 2025-09-01.)

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	221
Clinical predictors of special type of esophageal cancer	97
Multicenter phase II study of trifluridine/tipiracil for esophageal squamous carcinoma refractory/intolerant to 5-fluorouracil, platinum compounds, and taxanes: the ECTAS study	66
Role of modified Glasgow Prognostic Score in patients with achalasia who underwent laparoscopic Heller-myotomy with Dor-fundoplication	56
Current status of prehabilitation before esophagectomy for patients with esophageal cancer among board-certified hospitals by the Japan Esophageal Society	55
A nationwide survey on the safety of cricothyrotomy: a multicenter retrospective study in Japan	45
Multicenter retrospective analysis of complications and risk factors in endoscopic resection for esophageal cancer across Japan	33
Comprehensive registry of esophageal cancer in Japan, 2016	33
Tumor response and survival outcomes of salvage concurrent chemoradiotherapy with three-dimensional conformal radiotherapy and 5-fluorouracil/platinum-based chemotherapy for postoperative locoregional	27
Esophagectomy for esophageal cancer in patients with a history of total pharyngolaryngectomy: a Japanese nationwide retrospective cohort study	25
Novel endoscopic approaches using the endocytoscopy for the target biopsy in esophageal eosinophilia	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
Safety and efficacy of endoscopic submucosal dissection for superficial esophageal cancer with esophageal varices	21
Comprehensive registry of esophageal cancer in Japan, 2014	19
Safety and feasibility of esophagectomy following combined neoadjuvant immunotherapy and chemotherapy for locally advanced esophageal cancer: a propensity score matching	19
Clinicopathological features and prognosis of gastric tube cancer after esophagectomy for esophageal cancer: a nationwide study in Japan	18
Manometric esophagogastric junction barrier metrics as predictors of gastroesophageal reflux	17
The totally mechanical Collard technique for cervical esophagogastric anastomosis reduces anastomotic stricture compared with triangular anastomosis in minimally invasive esophagectomy with gastric co	16
Clinical outcomes and prognostic factors for esophageal cancer in patients aged 80 years or older who were treated with definitive radiotherapy and chemoradiotherapy	15
Preoperative evaluation of oral hygiene may predict the overall survival of patients with esophageal cancer	14
Characteristics of multiple esophageal squamous cell carcinomas detected in the surveillance after endoscopic resection	14
Comparison of proton-based definitive chemoradiotherapy and surgery-based therapy for esophageal squamous cell carcinoma: a multi-center retrospective Japanese cohort study	13
Significance of dissection in each regional lymph-node station of esophageal cancer based on efficacy index and recurrence patterns after curative esophagectomy	13
Pivotal trial of a biodegradable stent for patients with refractory benign esophageal stricture	13
Investigating the synergistic effects of immunochemotherapy in esophageal squamous cell carcinoma	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
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
Saliva secretion is reduced in mild reflux esophagitis patients	11
Early postoperative weight loss is associated with poor prognosis in patients with esophageal cancer	11
Low skeletal muscle mass contributes to the prognosis of patients with superficial esophageal cancer treated with definitive chemoradiotherapy	11
Ramelteon and suvorexant for postoperative delirium in elderly 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
Prognostic impact of endoscopic response evaluation after neoadjuvant chemotherapy for esophageal squamous cell carcinoma: a nationwide validation study	10
Protective effect of rosuvastatin against the formation of benign esophageal stricture	10
Endoscopic vacuum therapy for post-esophagectomy anastomotic dehiscence as rescue treatment: a single center case series	10
Comparison and validation of the Japanese classification 12th edition and American joint committee on cancer 8th edition on intrathoracic esophageal squamous cell carcinoma	9
Evaluating the discrepancies between evidence-based and community standard practices in the endoscopic diagnosis of esophageal squamous cell carcinoma: a survey study	9
Proposal for T3 classification of esophagogastric junction carcinoma based on the interconnection of extramural anatomical structures	9
Neutrophil-to-lymphocyte ratio change predicts histological response to and oncological outcome of neoadjuvant chemotherapy for esophageal squamous cell carcinoma	9
Efficacy of a novel small-caliber therapeutic endoscope in peroral endoscopic myotomy for esophageal motility disorders: a propensity score matching analysis	8
Effectiveness of taxanes following nivolumab in patients with advanced esophageal squamous cell carcinoma: a retrospective chart review of patients in ATTRACTION-3	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
Distal esophageal wall thickness correlates with dysphagia in adult patients with eosinophilic esophagitis	8
HEYL-mediated activation of LAMA3 influences radiotherapy response in esophageal cancer	8
Fistula closure technique using an esophageal stent and fixation method for gastrointestinal-airway fistula after esophageal cancer surgery	8
Risk of fractures in individuals with eosinophilic esophagitis: nationwide population-based cohort study	7
Esophageal cancer practice guidelines 2022 edited by the Japan esophageal society: part 1	7
Correlation between TXNRD1/HO-1 expression and response to neoadjuvant chemoradiation therapy in patients with esophageal squamous cell carcinoma	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 factors for upper extremity deep vein thrombosis after esophagectomy for esophageal cancer in retrosternal reconstruction	7
Achalasia: laparoscopic Heller myotomy with fundoplication versus peroral endoscopic myotomy—a systematic review and meta-analysis	7
Relationship between esophageal achalasia subtypes and esophageal clearance	7
Phase II study of BKM120 in patients with advanced esophageal squamous cell carcinoma (EPOC1303)	6
Association of gastric myotomy length in peroral endoscopic myotomy (POEM) with gastro-esophageal junction distensibility measured by Endoluminal Functional Lumen Imaging Probe (EndoFLIP)	6
The relationship between the esophageal endoscopic submucosal dissection technical difficulty and its intraoperative process	6
Predictors of technical difficulty for trainees in esophageal endoscopic submucosal dissection	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
Refining postoperative monitoring of recurrent laryngeal nerve injury in esophagectomy patients through transcutaneous laryngeal ultrasonography	6
Correction: Comparison of proton-based Definitive chemoradiotherapy and surgery-based therapy for esophageal squamous cell carcinoma: a multi-center retrospective Japanese cohort study	6
Comprehensive complication index as a prognostic factor in minimally invasive esophagectomy for esophageal squamous cell carcinoma	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	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
Usefulness of wearable fitness tracking devices in patients undergoing esophagectomy	5
Remarkable response as a new indicator for endoscopic evaluation of local efficacy of non-surgical treatments for esophageal cancer	5
Influence of patient position in thoracoscopic esophagectomy on postoperative pneumonia: a comparative analysis from the National Clinical Database in Japan	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
Influence of laparoscopy-aided gastrostomy on gastroesophageal reflux in neurologically impaired patients using multichannel intraluminal impedance pH measurements	5
Handgrip strength predicts early postoperative dysphagia after thoracoscopic–laparoscopic esophagectomy in male patients with esophageal cancer	5
Usefulness of the aldehyde breath test for predicting metachronous recurrence in patients with esophageal squamous cell carcinoma and hypopharyngeal squamous cell carcinoma	5
Comparison of the subtotal and narrow gastric conduit for cervical esophagogastrostomy after esophagectomy in esophageal cancer patients: a propensity score-matched analysis	5
Relationship between gut microbiome Fusobacterium nucleatum and LINE-1 methylation level in esophageal cancer	5

Impact of MRI on the post-therapeutic diagnosis of T4 esophageal cancer	5
Efficacy and safety of peroral endoscopic myotomy in 100 older patients	5
Concurrent chemoradiotherapy using proton beams can reduce cardiopulmonary morbidity in esophageal cancer patients: a systematic review	5
Esophageal wall thickness on CT scans: can it predict the T stage of primary thoracic esophageal squamous cell carcinoma?	5
Differential prognostic significance of sarcopenia in metastatic esophageal squamous and adenocarcinoma	5
Feasibility and safety of endoscopic submucosal dissection for superficial cancer of the remnant esophagus after esophagectomy	5
The treatment effects of acotiamide in esophagogastric outflow obstruction: a prospective longitudinal observational study	5
Outcomes of esophagectomy for patients with esophageal squamous cell carcinoma accompanied by recurrent laryngeal nerve palsy at diagnosis	5
Oral metronomic chemotherapy after definitive chemoradiation in esophageal squamous cell carcinoma: a randomized clinical trial	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
Evaluating the discrepancies between evidence-based and community standard practices in the endoscopic examination of Barrett’s esophagus: a nationwide survey in Japan	5
Incidence of delayed gastric conduit emptying in patients undergoing esophagectomy: a systematic review and meta‑analysis	5
Determinants of reflux perception in patients with non-erosive reflux disease who have reflux-related symptoms on potassium-competitive acid blocker therapy	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
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
Second-line pembrolizumab versus chemotherapy in Japanese patients with advanced esophageal cancer: subgroup analysis from KEYNOTE-181	4
The impact of surgeon specialty and technique on outcomes after esophageal dilation: a systematic review	4
Efficacy of laparoscopic fundoplication in patients with chronic cough and gastro-oesophageal reflux	4
Real-world treatment patterns and outcomes in Japanese patients with cervical esophageal cancer	4
Outcomes of transhiatal colon bypass with or without esophagectomy for establishing continuity after corrosive esophageal burns in pediatric patients	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
Comprehensive registry of esophageal cancer in Japan, 2015	4
Changes in and clinical utility of maximum phonation time and repetitive saliva swallowing test scores after esophagectomy	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
Implication of changes in PD-L1 expression during neoadjuvant chemotherapy with docetaxel, cisplatin, and 5-fluorouracil (DCF) regimen in esophageal squamous cell carcinoma	4
Characteristics of patients with esophageal motility disorders on high-resolution manometry and esophagography—a large database analysis in Japan	3
The fragility of significant results from randomized controlled trials in esophageal surgeries	3
Correction to: Esophageal cancer practice guidelines 2017 edited by the Japan Esophageal Society: part 1 and Part 2	3
Microscopic venous invasion is a predictor of prognosis in patients with esophageal squamous cell carcinoma undergoing ineffective neoadjuvant chemotherapy and surgery	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
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
Blue laser imaging identifies endoscopic findings corresponding to metachronous esophageal squamous cell carcinoma	3
Factors of technical difficulty in conventional and traction-assisted esophageal endoscopic submucosal dissection	3
Second-line tislelizumab versus chemotherapy in Japanese patients with advanced or metastatic esophageal squamous cell carcinoma: subgroup analysis from RATIONALE-302	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
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
Porphyromonas gingivalis levels correlate with TLR4 expression status and prognosis after esophagectomy for advanced thoracic esophageal squamous cell carcinoma	3
The use of drugs to prevent postoperative delirium in elderly patients with radical esophagectomy	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
Outcome of sequential dilatation in achalasia cardia patients: a prospective cohort study	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
Fruit and vegetable consumption and risk of esophageal cancer in the Asian region: a systematic review and meta-analysis	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
Transparency-enhancing technology allows the three-dimensional assessment of esophageal carcinoma obtained by endoscopic submucosal dissection	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
Among females older than 50 years, saliva secretion is significantly lower in non-erosive reflux disease patients than in healthy controls	2
Outcomes of solitary postoperative recurrence of esophageal squamous cell carcinoma diagnosed with FDG-PET/CT and treated with definitive radiation therapy	2
Effectiveness of prehabilitation during neoadjuvant therapy for patients with esophageal or gastroesophageal junction cancer: a systematic review	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
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
Prognostic impact of postoperative long-term skeletal muscle mass reduction after esophagectomy for esophageal cancer	2
Letter to the editor: preoperative evaluation of oral hygiene may predict the overall survival of patients with esophageal cancer	2
Clinical use of mean nocturnal baseline impedance and post-reflux swallow-induced peristaltic wave index for the diagnosis of gastro-esophageal reflux disease	2
Stepwise innovation of anesthesia through endotracheal intubation during esophagectomy for 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
Exploring predictive biomarkers of efficacy and survival with nivolumab treatment for unresectable/recurrent esophageal squamous cell carcinoma	2
Esophageal motility disorders missed during endoscopy	2
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
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
Efficacy and safety of per-oral endoscopic myotomy in non-achalasia esophageal motility disorders: a systematic review and meta-analysis	2
Endoscopic imaging modalities for diagnosing the invasion depth of superficial esophageal squamous cell carcinoma: a systematic review	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
Outcome research on esophagectomy analyzed using nationwide databases in Japan: evidences generated from real-world data	2
Safety and short-term efficacy of preoperative FOLFOX therapy in patients with resectable esophageal squamous cell carcinoma who are ineligible for cisplatin	2
Esophageal mast cells may be associated with the perception of symptoms in patients with eosinophilic esophagitis	2