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 2022-05-01 to 2026-05-01.)

Article	Citations
Role of modified Glasgow Prognostic Score in patients with achalasia who underwent laparoscopic Heller-myotomy with Dor-fundoplication	338
Clinical predictors of special type of esophageal cancer	151
Comprehensive registry of esophageal cancer in Japan, 2016	120
Tumor response and survival outcomes of salvage concurrent chemoradiotherapy with three-dimensional conformal radiotherapy and 5-fluorouracil/platinum-based chemotherapy for postoperative locoregional	80
Multicenter retrospective analysis of complications and risk factors in endoscopic resection for esophageal cancer across Japan	68
Current status of prehabilitation before esophagectomy for patients with esophageal cancer among board-certified hospitals by the Japan Esophageal Society	54
Effectiveness of postoperative rehabilitation after discharge in survivors of esophageal or gastroesophageal junction cancers: a systematic review	45
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	37
A nationwide survey on the safety of cricothyrotomy: a multicenter retrospective study in Japan	32
The safety and short-term efficacy of nivolumab plus ipilimumab for advanced esophageal squamous cell carcinoma	29
Novel endoscopic approaches using the endocytoscopy for the target biopsy in esophageal eosinophilia	29
Esophagectomy for esophageal cancer in patients with a history of total pharyngolaryngectomy: a Japanese nationwide retrospective cohort study	27
Safety and efficacy of endoscopic submucosal dissection for superficial esophageal cancer with esophageal varices	26
Conversion surgery following immunochemotherapy for initially unresectable/recurrent esophageal cancer	20
Comparison of anastomotic stricture rates between 23- and 25-mm powered circular staplers in cervical esophagogastric anastomosis: a propensity-matched study	19
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	17
Comparison of proton-based definitive chemoradiotherapy and surgery-based therapy for esophageal squamous cell carcinoma: a multi-center retrospective Japanese cohort study	16
Treatment resistance factors associated with Talaporfin sodium photodynamic therapy for local control after chemoradiotherapy for esophageal cancer	16
Preoperative evaluation of oral hygiene may predict the overall survival of patients with esophageal cancer	15
Investigating the synergistic effects of immunochemotherapy in esophageal squamous cell carcinoma	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
Efficacy of sternocleidomastoid muscle flap in reducing anastomotic mediastinal/pleural cavity leak	13
Manometric esophagogastric junction barrier metrics as predictors of gastroesophageal reflux	13
Significance of dissection in each regional lymph-node station of esophageal cancer based on efficacy index and recurrence patterns after curative esophagectomy	13
Characteristics of multiple esophageal squamous cell carcinomas detected in the surveillance after endoscopic resection	13

The impact of time to postoperative recurrence on the prognosis of patients with esophageal cancer post recurrence: exploratory analysis of OGSG 1003	12
Correlation of growth differentiation factor 15 level in esophageal cancer with cachectic indicators and postoperative infectious complication	12
First-line tislelizumab plus chemotherapy versus placebo plus chemotherapy in adults with advanced or metastatic esophageal squamous cell carcinoma: a Japanese subgroup analysis of RATIONALE-306 with	12
Effect of preserving the bronchial artery and the azygos arch in McKeown esophagectomy: a systematic review and meta‑analysis	12
Early postoperative weight loss is associated with poor prognosis in patients with esophageal cancer	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
Initial experiences of the transthoracic esophagectomy for esophageal cancer via intercostal approach with the single-port robotic surgical system	11
Prognostic impact of endoscopic response evaluation after neoadjuvant chemotherapy for esophageal squamous cell carcinoma: a nationwide validation study	10
Ramelteon and suvorexant for postoperative delirium in elderly patients with esophageal cancer	10
Low skeletal muscle mass contributes to the prognosis of patients with superficial esophageal cancer treated with definitive chemoradiotherapy	10
Prognostic impact of desmoplastic reaction in esophageal squamous cell carcinoma patients with neoadjuvant therapy	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
Additional treatment for esophageal cancer patients with incomplete resection due to the surrounding organ invasion: a nationwide survey of 45 Japanese centers	9
Estimation of esophageal involvement length in esophagogastric junction tumors using PET-CT	9
Rikkunshito attenuates nutritional decline and skeletal muscle loss during preoperative chemotherapy for esophageal cancer	9
Blown-out myotomy: emerging phenotype in post-myotomy failure after POEM and Heller myotomy	9
Evaluating the discrepancies between evidence-based and community standard practices in the endoscopic diagnosis of esophageal squamous cell carcinoma: a survey study	8
Fistula closure technique using an esophageal stent and fixation method for gastrointestinal-airway fistula after esophageal cancer surgery	8
Effectiveness of taxanes following nivolumab in patients with advanced esophageal squamous cell carcinoma: a retrospective chart review of patients in ATTRACTION-3	8
HEYL-mediated activation of LAMA3 influences radiotherapy response in esophageal cancer	8
Proposal for T3 classification of esophagogastric junction carcinoma based on the interconnection of extramural anatomical structures	8
A review of management of benign post-esophagectomy respiratory–digestive fistula in esophageal cancer in China	8
Achalasia: laparoscopic Heller myotomy with fundoplication versus peroral endoscopic myotomy—a systematic review and meta-analysis	8
Comparison of clinical and prognostic characteristics between superficial basaloid and conventional esophageal squamous carcinoma	8
Preoperative risk factors for postoperative physical frailty in patients with esophageal cancer: a scoping review	8
Efficacy of a novel small-caliber therapeutic endoscope in peroral endoscopic myotomy for esophageal motility disorders: a propensity score matching analysis	8
Embryological study of the development of thin membranous dense connective tissues around the esophagus using two fetal cadavers	8
Phase II study of BKM120 in patients with advanced esophageal squamous cell carcinoma (EPOC1303)	7
Usefulness of endoscopic ultrasound in predicting treatment efficacy of salvage endoscopic therapy for local failure after chemoradiotherapy for esophageal squamous cell carcinoma	7
Esophageal cancer practice guidelines 2022 edited by the Japan esophageal society: part 1	7
Risk of fractures in individuals with eosinophilic esophagitis: nationwide population-based cohort study	7
Refining postoperative monitoring of recurrent laryngeal nerve injury in esophagectomy patients through transcutaneous laryngeal ultrasonography	7
Risk factors for upper extremity deep vein thrombosis after esophagectomy for esophageal cancer in retrosternal reconstruction	7
Distal esophageal wall thickness correlates with dysphagia in adult patients with eosinophilic esophagitis	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
Efficacy of combined use of magnifying narrow-band imaging/blue laser imaging and Lugol chromoendoscopy for tumor extent delineation in esophageal squamous cell carcinoma	7
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	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
Correction: Comparison of proton-based Definitive chemoradiotherapy and surgery-based therapy for esophageal squamous cell carcinoma: a multi-center retrospective Japanese cohort study	6
Oral metronomic chemotherapy after definitive chemoradiation in esophageal squamous cell carcinoma: a randomized clinical trial	6
Relationship between gut microbiome Fusobacterium nucleatum and LINE-1 methylation level in esophageal cancer	6
Critical swallowing functions contributing to dysphagia in patients with recurrent laryngeal nerve paralysis after esophagectomy	6
The relationship between the esophageal endoscopic submucosal dissection technical difficulty and its intraoperative process	6
Handgrip strength predicts early postoperative dysphagia after thoracoscopic–laparoscopic esophagectomy in male patients with esophageal cancer	6
Does chemotherapy regimen matter for first-line immunochemotherapy in low PD-L1-expressing esophageal squamous cell carcinoma? A systemic review and meta-analysis	6
Predictors of technical difficulty for trainees in esophageal endoscopic submucosal dissection	6
Feasibility and safety of endoscopic submucosal dissection for superficial cancer of the remnant esophagus after esophagectomy	6
Community standard practices in the endoscopic treatment of esophageal squamous cell carcinoma: a nationwide survey in Japan	6
Comparison of the subtotal and narrow gastric conduit for cervical esophagogastrostomy after esophagectomy in esophageal cancer patients: a propensity score-matched analysis	5
Differential prognostic significance of sarcopenia in metastatic esophageal squamous and adenocarcinoma	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
Can combined organ resection cure T4 esophageal cancer? Insights from a multi-institutional study of incomplete resection cases	5
A GLUT1-targeted peptide tracer for precision molecular imaging of esophageal squamous cell carcinoma: from early detection to intraoperative margin assessment	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
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
Simultaneous regulation of ferroptosis suppressor protein 1 and glutathione peroxidase 4 as a new therapeutic strategy of ferroptosis for esophageal squamous cell carcinoma	5
Incidence of delayed gastric conduit emptying in patients undergoing esophagectomy: a systematic review and meta‑analysis	5
Remarkable response as a new indicator for endoscopic evaluation of local efficacy of non-surgical treatments for esophageal cancer	5
Changes in and clinical utility of maximum phonation time and repetitive saliva swallowing test scores after esophagectomy	5
Timing of the infusion of nivolumab for patients with recurrent or metastatic squamous cell carcinoma of the esophagus influences its efficacy	5
Usefulness of the aldehyde breath test for predicting metachronous recurrence in patients with esophageal squamous cell carcinoma and hypopharyngeal squamous cell carcinoma	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
Impact of MRI on the post-therapeutic diagnosis of T4 esophageal cancer	5
Preoperative docetaxel, cisplatin, and 5-fluorouracil for resectable locally advanced esophageal and esophagogastric junctional adenocarcinoma	5
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?	4
Outcomes of transhiatal colon bypass with or without esophagectomy for establishing continuity after corrosive esophageal burns in pediatric patients	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
A discrete choice experiment to assess treatment preferences for patients with esophageal cancer in Japan	4
Japanese Classification of Esophageal Cancer, 12th Edition: Part II	4
Comprehensive registry of esophageal cancer in Japan, 2015	4
Porphyromonas gingivalis levels correlate with TLR4 expression status and prognosis after esophagectomy for advanced thoracic esophageal squamous cell carcinoma	4
Two onset types of achalasia and the long-term course to diagnosis	4
Real-world treatment patterns and outcomes in Japanese patients with cervical esophageal cancer	4
Efficacy of laparoscopic fundoplication in patients with chronic cough and gastro-oesophageal reflux	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
Multimodal deep-learning model using pre-treatment endoscopic images and clinical information to predict efficacy of neoadjuvant chemotherapy in esophageal squamous cell carcinoma	4
Is oropharyngoesophageal scintigraphy the method of choice for assessing dysphagia in systemic sclerosis? A single center experience	4
Experience using a free pericardial fat pad to repair an intrathoracic injury during esophageal cancer surgery	4
The Geriatric Nutritional Risk Index and pulmonary function predict non-esophageal cancer-related mortality after esophagectomy	4
The impact of surgeon specialty and technique on outcomes after esophageal dilation: a systematic review	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
Short-term outcomes of robot-assisted versus conventional thoracoscopic esophagectomy: a nationwide inpatient database study in Japan	4
Microscopic venous invasion is a predictor of prognosis in patients with esophageal squamous cell carcinoma undergoing ineffective neoadjuvant chemotherapy and surgery	3
Preoperative low attenuation area percentage as a predictor of postoperative pulmonary complications and prognosis in esophagectomy: a retrospective cohort study	3
Low anti-CFL1 antibody with high anti-ACTB antibody is a poor prognostic factor in esophageal squamous cell carcinoma	3
Lymph node metastasis and treatment outcomes of endoscopic submucosal dissection for superficial spreading esophageal squamous cell carcinoma ≥ 50 mm in size	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
Surgical outcomes of reconstruction using the gastric tube and free jejunum for cervical esophageal cancer: analysis using the National Clinical Database of Japan	3
Correction to: Esophageal cancer practice guidelines 2017 edited by the Japan Esophageal Society: part 1 and Part 2	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
Clinical course of chest pain associated with esophageal motility disorders following peroral endoscopic myotomy	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
Transparency-enhancing technology allows the three-dimensional assessment of esophageal carcinoma obtained by endoscopic submucosal dissection	3
How I do it: The Hi-UP approach—single-port da Vinci SP–assisted mediastinoscopic subtotal esophagectomy with a transhiatal-dominant strategy in the abdominal and cervical phases	3
The use of drugs to prevent postoperative delirium in elderly patients with radical esophagectomy	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
A message from the new editor-in-chief 2024	2
Efficacy and safety of per-oral endoscopic myotomy in non-achalasia esophageal motility disorders: a systematic review and meta-analysis	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
Outcomes of solitary postoperative recurrence of esophageal squamous cell carcinoma diagnosed with FDG-PET/CT and treated with definitive radiation therapy	2
Among females older than 50 years, saliva secretion is significantly lower in non-erosive reflux disease patients than in healthy controls	2
Stepwise innovation of anesthesia through endotracheal intubation during esophagectomy for cancer	2
Effectiveness of prehabilitation during neoadjuvant therapy for patients with esophageal or gastroesophageal junction cancer: a systematic review	2
Systemic inflammation score as a predictor of death within one year after esophagectomy	2
The impact of combined PD-L1 positive score on clinical response to nivolumab in patients with advanced esophageal squamous cell carcinoma	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
Exploring predictive biomarkers of efficacy and survival with nivolumab treatment for unresectable/recurrent esophageal squamous cell carcinoma	2
Prognostic impact of postoperative long-term skeletal muscle mass reduction after esophagectomy for esophageal cancer	2
Genetic risk stratification and preventive strategies for double primary HNSCC and ESCC: a single-center cohort study	2
Esophageal mast cells may be associated with the perception of symptoms in patients with eosinophilic esophagitis	2
Letter to the editor: preoperative evaluation of oral hygiene may predict the overall survival of patients with esophageal cancer	2
Association between preoperative heat-not-burn cigarette smoking and short-term outcomes after esophagectomy: a nationwide cohort study of 17,797 patients from the Japanese National Clinical Database	2
Impact of pulmonary vein anatomy and left atrial size on postoperative atrial fibrillation after esophagectomy for esophageal cancer	2
Clinicopathological features in T1 adenocarcinoma of the esophagogastric junction: a new perspective on tumor localization	2
International trends in esophageal cancer incidence rates by histological subtype (1990–2012) and prediction of the rates to 2030	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
Outcome research on esophagectomy analyzed using nationwide databases in Japan: evidences generated from real-world data	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
Safety and short-term efficacy of preoperative FOLFOX therapy in patients with resectable esophageal squamous cell carcinoma who are ineligible for cisplatin	2
Thoracoscopic repair of Boerhaave’s syndrome in the prone position: A novel left-sided minimally invasive approach	2
Esophageal dysmotility in patients with eosinophilic esophagitis: pathogenesis, assessment tools, manometric characteristics, and clinical implications	2
Second-line tislelizumab versus chemotherapy in Japanese patients with advanced or metastatic esophageal squamous cell carcinoma: subgroup analysis from RATIONALE-302	2
A simpler diagnostic algorithm of the Japan Esophageal Society classification for Barrett’s esophagus-related superficial neoplasia	2
Essential risk factors for operative mortality in elderly esophageal cancer patients registered in the National Clinical Database of Japan	2
No difference in the incidence of postoperative pulmonary complications between abdominal laparoscopy and laparotomy for minimally invasive thoracoscopic esophagectomy: a retrospective cohort study us	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
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