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Introduction: Proactive esophageal cooling reduces injury during radiofrequency (RF) ablation of the left atrium (LA) for the treatment of atrial fibrillation (AF). New catheters are capable of higher wattage settings up to 90 W (very high-power short duration, vHPSD) for 4 s. Varying power and duration, however, does not eliminate the risk of thermal injury. Furthermore, alternative energy sources such as pulsed field ablation (PFA) also exhibit thermal effects, with clinical data showing esophageal temperatures up to 40.3°C. The ensoETM esophageal cooling device (Attune Medical, now a part of Haemonetics, Boston, MA, U.S.A.) is commercially available and FDA-cleared to reduce thermal injury to the esophagus during RF ablation for AF and is recommended in the 2024 expert consensus statement on catheter and surgical ablation of AF. Areas covered: This review summarizes growing evidence of esophageal cooling during high power RF ablation for AF treatment, including data relating to procedural efficacy, safety, and efficiency, and techniques to enhance operator success while providing directions for further research. Expert opinion: Proactive esophageal cooling reduces injury to the esophagus during high power RF ablation, and utilizing this approach may result in increased success in first-pass isolation, procedural efficiency, and long-term efficacy. Plain Language Summary: Atrial fibrillation is a condition that causes the heart to beat irregularly, which then may cause symptoms such as palpitations, shortness of breath, dizziness, and chest pain. Atrial fibrillation increases a person's risk of heart failure, dementia, stroke, and death. Radiofrequency catheter ablation is a frequently employed treatment option for atrial fibrillation. This is an elective procedure performed by specialty physicians called electrophysiologists. This treatment uses a thermal (heat) energy source to create scars in the heart that block the irregular or chaotic heartbeats. There are multiple approaches to delivering this energy, including delivering moderate energy over a specified time frame as well as delivering very high amounts of energy over a much-shortened time frame. Despite the approach used, one complication of this type of energy delivery is unintended injury to the esophagus, the organ behind the heart that passes food from the mouth to the stomach. In severe cases, this injury can develop into an atrioesophageal fistula, an abnormal connection between the heart and the esophagus, which can result in death. In this review, we discuss an available device that helps prevent this type of injury in both standard and higher energy delivery, without compromising the efficacy or efficiency of the procedure. [ABSTRACT FROM AUTHOR]

Diagnostic mediastinoscopy is a procedure with well-known serious complications: Hemorrhage, mediastinitis, pneumothorax and recurrent nerve damage. Esophageal perforation is a less known potentially life-threatening complication. Here the case of a young man with an iatrogenic esophageal perforation following a diagnostic mediastinoscopy is presented with a literary review of previously published cases. [ABSTRACT FROM AUTHOR]

Diagnostic mediastinoscopy is a procedure with well-known serious complications: Hemorrhage, mediastinitis, pneumothorax and recurrent nerve damage. Esophageal perforation is a less known potentially life-threatening complication. Here the case of a young man with an iatrogenic esophageal perforation following a diagnostic mediastinoscopy is presented with a literary review of previously published cases.

Atrial fibrillation (AF) affects a significant proportion of older individuals, with prevalence rates of 3.8 ​% in those over 60 and 9.0 ​% in those over 80 years old, posing a considerable risk of stroke. Radiofrequency ablation (RFA) has emerged as a popular treatment option. However, RFA is not without risks, with esophageal injury being a notable complication, as illustrated by our case study of a 67-year-old patient who developed an atrial-esophageal fistula post-RFA. Timely diagnosis is imperative due to the rarity and severe consequences such as esophageal perforation. While treatment strategies remain somewhat uncertain, initial stenting has given way to surgical intervention for improved outcomes. Our study emphasizes the critical importance of vigilance, early identification, and a multidisciplinary approach in managing this challenging complication.

Esophageal perforation is a rare but well-known complication of anterior cervical spine surgery. We present a case report of 36-year-old male presenting with gradual painful left neck swelling, tenderness, fever, rigor, and chills, four months after anterior cervical spine surgery. After doing necessary investigations the patient was operated for pus drainage and esophageal perforation was also noticed during the surgery that was repaired along with hard ware removal. Later on due to wound complications the patient was referred to another higher center, where he was re-operated. After improvement he was received back in our hospital for follow-up management and then discharged after complete recovery. [ABSTRACT FROM AUTHOR]

Radiofrequency (RF) ablation of the left atrium of the heart is increasingly used to treat atrial fibrillation (AF). Unfortunately, inadvertent thermal injury to the esophagus can occur during this procedure, potentially creating an atrioesophageal fistula (AEF) which is 80% fatal. The ensoETM (Attune Medical, Chicago, IL), is an esophageal cooling device that has been shown to reduce thermal injury to the esophagus during RF ablation. This review summarizes growing evidence related to active esophageal cooling during RF ablation for the treatment of AF. The review presents data demonstrating improved outcomes related to patient safety and procedural efficiency and suggests directions for future research. The use of active esophageal cooling during RF ablation reduces esophageal injury, reduces or eliminates fluoroscopy requirements, reduces procedure duration and post-operative pain, and increases long-term freedom from arrhythmia. These effects in turn increase patient same-day discharge rates, decrease operator cognitive load, and reduce cost. These findings are likely to further accelerate the adoption of active esophageal cooling. Atrial fibrillation is a condition in which the heart beats irregularly, causing symptoms such as palpitations, dizziness, shortness of breath, and chest pain. Atrial fibrillation increases the risk of stroke, heart failure, dementia, and death. One treatment for atrial fibrillation is a procedure called a catheter ablation. This procedure is minimally invasive and is performed by a specialized cardiologist, called an electrophysiologist. The electrophysiologist, or operator, uses an energy source, such as radiofrequency energy (radio waves), to stop erratic electrical signals from traveling through the heart. One complication of the catheter ablation is an inadvertent injury to the esophagus, the organ that passes food from the mouth to the stomach. If the injury is severe, it may develop into an atrioesophageal fistula, which often results in death. In this review, a new technology is described that helps prevent this type of injury and can provide additional benefits for the patient, operator, and hospital. [ABSTRACT FROM AUTHOR]

Background: High pharyngo-esophageal strictures following corrosive ingestion continue to pose a challenge to the surgeon, particularly in the developing world. With the advancements and increased experience with microsurgical techniques, free jejunal flaps offer a viable reconstruction option in patients with high corrosive strictures with previous failed reconstruction. We review our experience with free jejunal flap in three cases with high pharyngo-esophageal stricture following corrosive ingestion, with previous failed reconstruction. Materials and methods: A total of three patients underwent salvage free jejunal flap after failed reconstruction for high pharyngo-esophageal strictures following corrosive acid ingestion. All the three patients developed anastomotic leak and subsequent stricture, two following a pharyngo-gastric anastomosis and one following a pharyngo-colic anastomosis. The strictured segment was bridged using a free jejunal graft with microvascular anastomosis to the lingual artery and common facial vein. All patients were followed-up at regular intervals. Results and conclusions: The strictured pharyngeal anastomotic segment was successfully reconstructed with free jejunal flap in all the three patients. Patients were able to take food orally and maintain nutrition without the need of jejunostomy feeding. On long-term follow-up (median: 5 years), there was no recurrence of dysphagia and all the patients had good health-related quality of life. [ABSTRACT FROM AUTHOR]

A male patient developed hematemesis and chest pain after severe vomiting. Gastroscopy showed a linear hematoma from the esophageal entrance to the cardia. Enhanced CT of the esophagus revealed a high-density shadow in the middle of the esophagus. Severe vomiting can lead to esophageal injury and esophageal hematoma. As this condition mimics critical symptoms of myocardial infarction and aortic dissection, clinicians must remain vigilant. This case emphasizes the importance of recognizing acute submucosal bleeding in the digestive tract, aiding in clinical diagnosis and treatment., Competing Interests: Human subjects: Consent for treatment and open access publication was obtained or waived by all participants in this study. Conflicts of interest: In compliance with the ICMJE uniform disclosure form, all authors declare the following: Payment/services info: All authors have declared that no financial support was received from any organization for the submitted work. Financial relationships: All authors have declared that they have no financial relationships at present or within the previous three years with any organizations that might have an interest in the submitted work. Other relationships: All authors have declared that there are no other relationships or activities that could appear to have influenced the submitted work., (Copyright © 2024, Lei et al.)

Objective: High power short duration (HPSD) ablation strategy is proposed to be more effective than low power long duration (LPLD) for radiofrequency ablation of atrial fibrillation. Although small trials abound, data from a large cohort are lacking. This meta-analysis compares all the existing studies comparing these two approaches to evaluate perceived advantages of one over the other. Methods: A systematic search of PubMed, EMBASE, and Cochrane databases identified studies comparing HPSD to LPLD ablation. All the analyses used the random-effects model. Results: Ablation settings varied widely across 20 studies comprising 2,136 patients who underwent HPSD and 1,753 patients who underwent LPLD. The pooled incidence of atrial arrhythmia recurrence after HPSD ablation was 20% [95% confidence interval (CI): 0.16 0.25; I2=88%]. Atrial arrhythmia recurrences were significantly less frequent with HPSD ablation (incidence risk ratio=0.66; 95% CI: 0.49–0.88; I2=72%; p=0.004). Procedural, fluoroscopy, and ablation times were significantly shorter with HPSD ablation. First-pass pulmonary vein isolations (PVIs) were significantly more [odds ratio (OR)=2.94; 95% CI: 1.50–5.77; I2=89%; p=0.002), and acute pulmonary vein reconnections (PVRs) were significantly lesser (OR=0.41; 95% CI: 0.28–0.62; I2=62%; p

Abstract Background Pill-induced esophageal injury may cause severe complications if not diagnosed in a timely fashion. The condition is under-recognized and under-reported, and some patients present with atypical clinical or endoscopic features mimicking other common conditions. If the diagnosis is missed the patient will continue to take the offending drug, potentially worsening the illness. We present a case in which acute coronary syndrome was the initial working diagnosis leading to a delay in diagnosis of doxycycline-induced esophageal injury. The patient developed multiple esophageal ulcers and hemorrhage. Case presentation A 50-year-old male driver with a history of hypertension and dyslipidemia was brought to the emergency department with complaints of severe retrosternal chest pain, vomiting, diaphoresis and syncope. On initial evaluation, acute coronary syndrome was considered due to the clinical presentation and history of cardiovascular risk factors. Electrocardiogram and serum troponins were normal. On the second day of his admission, the patient developed odynophagia and bloody vomitus. Esophagogastroduodenoscopy revealed extensive esophageal ulcerations with hemorrhage. The patient was taking Doxycycline capsules for an acute febrile illness. Doxycycline is the oral medication most commonly reported to cause esophageal injury. Doxycycline was discontinued, and the patient was treated with intravenous omeprazole and oral antacid suspension. The patient improved, was discharged after 6 days of hospitalization, and reported resolution of all symptoms at an outpatient follow-up visit 3 weeks later. Conclusion Medication-induced esophageal injury can present with atypical symptoms mimicking acute coronary syndrome. This condition should be included in the initial differential diagnosis of patients presenting with acute chest pain, especially those taking oral medications known to cause esophageal injury.

Abstract Background Traumatic esophageal injury leads to severe complications such as mediastinitis, pyothorax, and tracheoesophageal fistula. Although prompt diagnosis and treatment are required, there are no established protocols to guide diagnosis or treatment. In particular, thoracic esophageal injury tends to be diagnosed later than cervical esophageal injury because it has few specific symptoms. We report a case of thoracic esophageal injury caused by a cervical stab wound; the patient was stabbed with a sharp blade. Case presentation A 74-year-old woman was attacked with a knife while sleeping at home. The patient was taken to the emergency room with an injury localized to the left section of her neck. She was suspected of a left jugular vein and recurrent laryngeal nerve injury from cervical hematoma and hoarseness. On the day following the injury, computed tomography revealed a thoracic esophageal injury. Emergency surgery was performed for an esophageal perforation and mediastinal abscesses. Although delayed diagnosis resulted in suture failure, the patient was able to resume oral intake of food a month later following enteral feeding with a gastrostomy. Esophageal injuries due to sharp trauma are rare, and most are cervical esophageal injuries. There are very few reports on thoracic esophageal injuries. Conclusions The possibility of thoracic esophageal injury should always be considered when dealing with neck stab wounds, particularly those caused by an attack.

ObjectiveAccidental ingestion of button batteries (BB), usually occurred in children and infants, will rapidly erode the esophagus and result in severe complications, even death. It has been recommended that treatment of this emergent accident as soon as possible with drinking of pH-neutralizing viscous solutions such as honey and sucralfate before surgical removal can mitigate the esophageal injury. Recently, we reported that the electric insulating solutions such as edible oils could mitigate tissue damage in BB-exposed esophageal segments. In this study, we compared the protective effect of kitchen oil with honey or sucralfate, the recommended pH-neutralizing beverages, and with their mixture on esophageal injury caused by BB ingestion in pig esophageal segments and in living piglets.MethodsEffect of olive oil irrigations was compared to that of honey or sucralfate irrigations in the BB-damaged esophageal segments freshly collected from the local abattoir and in live Bama miniature piglets with the proximal esophagus exposed to BB for 60 min. Also, the effect of olive oil and honey mixture (MOH) irrigations was assessed in live animals. The BB voltage was recorded before insertion and after its removal. Gross and histological analysis of the esophageal injury was performed after BB exposure in segmented fresh esophagus and 7 days after BB exposure in live animals, respectively.ResultsOlive oil irrigations demonstrated better protective effect against BB-induced esophageal damage, compared to honey or sucralfate for BB-induced esophageal damage in vitro. But in vivo study showed that olive oil alone exacerbated esophageal injury because all esophagi irrigated with olive oil perforated. Surprisingly, irrigations with the MOH showed considerable protective effect for BB-induced esophageal damage in live animals, significantly better than irrigations with honey alone. The MOH decreased BB discharge, reduced area of surface injury, attenuated injured depth of esophageal wall thickness, and downed the mucosal injury index in comparison to using honey alone.ConclusionIrrigations with olive oil alone couldn’t prevent the BB discharge and is harmful for BB ingestion before surgical removal. However, mixed with honey, olive oil very effectively prevents the BB discharging and produces better esophageal protection than honey.

Background: More than 3,000 cases of accidental ingestion of coin-shaped lithium batteries (CSLBs) have been reported in the United States. Battery ingestion can cause serious injury and even death. Prior reports have indicated that complications often occur two or more hours after ingestion. However, to date, the temporal changes in esophageal damage remain unclear. To address this knowledge gap, we examined the histological features associated with these temporal changes., Methods: Six piglets were used as models. After laparotomy and thoracotomy, three CSLBs were inserted into the esophagus of each pig. The esophagi were removed for histological examination at 0.5, 1, 2, 4, 6, and 8 hours. The consumed capacities of the batteries were measured after removal., Results: Mucosal damage began at the margins of batteries, gradually spreading to the centers of the negative pole. At 0.5 hours after implantation, although necrosis at the limbus had reached the muscle layer, it became more extensive with time. At six hours, the full-thickness wall was damaged in all areas of the negative pole. The consumed capacity increased markedly after six hours, at which point holes opened in the outer case on the positive pole of the battery with observed electrolyte leakage. The consumed capacity was correlated with the amount of alkaline hydroxide ions., Conclusion: Our study revealed changes over time in injury site and depth. Although early diagnosis and treatment are necessary, managing batteries to avoid complications is also important. Additionally, developing safer batteries is warranted., Competing Interests: Human subjects: All authors have confirmed that this study did not involve human participants or tissue. Animal subjects: Compliance with the animal experiment regulations of The Jikei University School of Medicine and in accordance with the animal experiment protocol. Issued protocol number 2016-026. Conflicts of interest: In compliance with the ICMJE uniform disclosure form, all authors declare the following: Payment/services info: All authors have declared that no financial support was received from any organization for the submitted work. Financial relationships: All authors have declared that they have no financial relationships at present or within the previous three years with any organizations that might have an interest in the submitted work. Other relationships: All authors have declared that there are no other relationships or activities that could appear to have influenced the submitted work., (Copyright © 2024, Ohashi et al.)

Endoscopic retrograde cholangiopancreatography (ERCP) is a frequently performed procedure in the management of hepatobiliary diseases that can be conducted as a therapeutic or diagnostic procedure. Also, it can be done with or without sphincterotomy and stent insertion. Hemorrhage is one of the most common post-ERCP complications, which can be presented as late as 10 days. Other complications include post-ERCP pancreatitis and perforation. Gut perforation during ERCP is rare but often lethal. Here we present a 35-year-old female who was admitted to the hospital through the ER as a case of obstructive jaundice with common bile duct (CBD) stone. ERCP with stent insertion was performed for the patient to relieve the obstruction; however, intra-procedural retroperitoneal perforation was encountered., Competing Interests: Human subjects: Consent was obtained or waived by all participants in this study. Conflicts of interest: In compliance with the ICMJE uniform disclosure form, all authors declare the following: Payment/services info: All authors have declared that no financial support was received from any organization for the submitted work. Financial relationships: All authors have declared that they have no financial relationships at present or within the previous three years with any organizations that might have an interest in the submitted work. Other relationships: All authors have declared that there are no other relationships or activities that could appear to have influenced the submitted work., (Copyright © 2024, Albugami et al.)

Anterior cervical discectomy and fusion (ACDF) is a commonly performed procedure. One of its most feared complications is esophageal injury (EI). There is no standard approach on how to treat these injuries. TachoSil ® (Corza Medical GmbH, Düsseldorf, Germany) is a fibrinogen-containing patch that has been used in various surgical areas. Here, we present a 68-year-old male patient who was diagnosed with an EI with secondary surgical site infection following a three-level ACDF (C4/5, C5/6, and C6/7). Initially, the patient underwent incision and drainage (I&D) of the surgical site abscess, primary repair of the esophageal tear, and esophageal catheter placement to create a controlled esophagocutaneous fistula. Postoperatively, he was diagnosed with a leak and underwent a second I&D procedure. The primary repair of the EI was augmented with a TachoSil patch, and the patient was started on glycopyrrolate. The site of EI was well-sealed with no re-leaks, and the patient was discharged after he had completed a course of intravenous (IV) antibiotics and had been on parenteral nutrition for a total of 40 days. This case shows that the use of TachoSil to augment the repair of ACDF-associated EI, and glycopyrrolate to decrease salivation could decrease the risk of leak and enhance the healing process. This is an observation that needs to be scrutinized in future studies., Competing Interests: Human subjects: Consent was obtained or waived by all participants in this study. Conflicts of interest: In compliance with the ICMJE uniform disclosure form, all authors declare the following: Payment/services info: All authors have declared that no financial support was received from any organization for the submitted work. Financial relationships: All authors have declared that they have no financial relationships at present or within the previous three years with any organizations that might have an interest in the submitted work. Other relationships: All authors have declared that there are no other relationships or activities that could appear to have influenced the submitted work., (Copyright © 2024, Alashkar et al.)

Objective: High power short duration (HPSD) ablation strategy is proposed to be more effective than low power long duration (LPLD) for radiofrequency ablation of atrial fibrillation. Although small trials abound, data from a large cohort are lacking. This meta-analysis compares all the existing studies comparing these two approaches to evaluate perceived advantages of one over the other. Methods: A systematic search of PubMed, EMBASE, and Cochrane databases identified studies comparing HPSD to LPLD ablation. All the analyses used the random-effects model. Results: Ablation settings varied widely across 20 studies comprising 2,136 patients who underwent HPSD and 1,753 patients who underwent LPLD. The pooled incidence of atrial arrhythmia recurrence after HPSD ablation was 20% [95% confidence interval (CI): 0.16–0.25; I2=88%]. Atrial arrhythmia recurrences were significantly less frequent with HPSD ablation (incidence risk ratio=0.66; 95% CI: 0.49–0.88; I2=72%; p=0.004). Procedural, fluoroscopy, and ablation times were significantly shorter with HPSD ablation. First-pass pulmonary vein isolations (PVIs) were significantly more [odds ratio (OR)=2.94; 95% CI: 1.50–5.77; I2=89%; p=0.002), and acute pulmonary vein reconnections (PVRs) were significantly lesser (OR=0.41; 95% CI: 0.28–0.62; I2=62%; p<0.001) in the HPSD group. Although radiofrequency energy was significantly higher, esophageal thermal injuries (ETI) were lower with HPSD ablation. Acute complications, including steam-pops, were rare and statistically similar in both the groups. Conclusion: HPSD ablation enables faster first-pass PVI with fewer PVRs, similar ETI rates, rare collateral damage, and lower recurrence of atrial arrhythmia in the long term than LPLD. Randomized controlled studies with a larger cohort are indicated both to confirm the benefit of HPSD ablation and standardize the ablation protocol. [ABSTRACT FROM AUTHOR]

Background: Pill-induced esophageal injury may cause severe complications if not diagnosed in a timely fashion. The condition is under-recognized and under-reported, and some patients present with atypical clinical or endoscopic features mimicking other common conditions. If the diagnosis is missed the patient will continue to take the offending drug, potentially worsening the illness. We present a case in which acute coronary syndrome was the initial working diagnosis leading to a delay in diagnosis of doxycycline-induced esophageal injury. The patient developed multiple esophageal ulcers and hemorrhage.Case Presentation: A 50-year-old male driver with a history of hypertension and dyslipidemia was brought to the emergency department with complaints of severe retrosternal chest pain, vomiting, diaphoresis and syncope. On initial evaluation, acute coronary syndrome was considered due to the clinical presentation and history of cardiovascular risk factors. Electrocardiogram and serum troponins were normal. On the second day of his admission, the patient developed odynophagia and bloody vomitus. Esophagogastroduodenoscopy revealed extensive esophageal ulcerations with hemorrhage. The patient was taking Doxycycline capsules for an acute febrile illness. Doxycycline is the oral medication most commonly reported to cause esophageal injury. Doxycycline was discontinued, and the patient was treated with intravenous omeprazole and oral antacid suspension. The patient improved, was discharged after 6 days of hospitalization, and reported resolution of all symptoms at an outpatient follow-up visit 3 weeks later.Conclusion: Medication-induced esophageal injury can present with atypical symptoms mimicking acute coronary syndrome. This condition should be included in the initial differential diagnosis of patients presenting with acute chest pain, especially those taking oral medications known to cause esophageal injury. [ABSTRACT FROM AUTHOR]

Cervical lymphadenectomy is a common procedure for thyroid cancer. Some of the complications are congruent with the complications of thyroid surgery, in particular recurrent laryngeal nerve paresis and hypoparathyroidism as well as bleeding and wound infection. Specific complications of lateral cervical lymph node dissection are injuries to the accessory, phrenic and hypoglossal nerves, and the cervical plexus trunk and injuries, the salivary glands, and the lymphatic system, especially the ductus thoracicus. Most of these complications are very rare with an incidence of <1%. Profound anatomical knowledge and a careful dissection technique make a decisive contribution to minimizing complications. [ABSTRACT FROM AUTHOR]

Shan Lin,* Yan Wang,* Lei Zhang, Wei GuanDepartment of Respiratory Medicine, Qinghai University Affiliated Hospital, Xining 810001, People’s Republic of China*These authors contributed equally to this workAbstract: Atrial fibrillation increases the risk of stroke and death. The vitamin-K antagonist warfarin is recommended for patients with atrial fibrillation, but vitamin-K antagonists are cumbersome to use. Therefore, an effective, safe and convenient new anticoagulant is needed. Dabigatran acts by inhibiting free and fibrin-bound thrombin directly. It is an oral anticoagulant that was approved by the US Food and Drug Administration. The oral anticoagulant dabigatran has been used increasingly due to its good tolerance, predictable pharmacokinetics, effective anticoagulant effects, and absence of requirement of coagulation monitoring. However, an increasing prevalence of adverse events has been reported, some of them quite serious. Therefore, we searched and reviewed the literature on dabigatran with regard to adverse events, and proposed solutions to prevent and reduce the chance of adverse events occurring.Keywords: adverse events, dabigatran, allergic reactions, bleeding, esophageal injury

Background: Traumatic esophageal injury leads to severe complications such as mediastinitis, pyothorax, and tracheoesophageal fistula. Although prompt diagnosis and treatment are required, there are no established protocols to guide diagnosis or treatment. In particular, thoracic esophageal injury tends to be diagnosed later than cervical esophageal injury because it has few specific symptoms. We report a case of thoracic esophageal injury caused by a cervical stab wound; the patient was stabbed with a sharp blade. Case presentation: A 74-year-old woman was attacked with a knife while sleeping at home. The patient was taken to the emergency room with an injury localized to the left section of her neck. She was suspected of a left jugular vein and recurrent laryngeal nerve injury from cervical hematoma and hoarseness. On the day following the injury, computed tomography revealed a thoracic esophageal injury. Emergency surgery was performed for an esophageal perforation and mediastinal abscesses. Although delayed diagnosis resulted in suture failure, the patient was able to resume oral intake of food a month later following enteral feeding with a gastrostomy. Esophageal injuries due to sharp trauma are rare, and most are cervical esophageal injuries. There are very few reports on thoracic esophageal injuries. Conclusions: The possibility of thoracic esophageal injury should always be considered when dealing with neck stab wounds, particularly those caused by an attack. [ABSTRACT FROM AUTHOR]

Objective: Catheter ablation has been a common procedure used for the management of atrial fibrillation (AF). Atrioesophagel fistula (AEF) is one of the most feared complications of AF ablation. Although it is a rare complication, severe esophageal thermal injury must be avoided. It is important to describe a safe method of preventing esophageal injuries without increasing AF recurrence. Methods: A retrospective cohort study of consecutive patients who underwent radiofrequency AF catheter ablation during 1 year-period wa conducted. One hundred and four patients were enrolled divided in two groups: one with a maximum recorded esophageal temperature (ET) < 38 °C and other with a maximum recorded ET ≥ 38 °C. The primary endpoint was detection of endoscopic esophageal lesions after AF ablation and the secondary endpoint was AF recurrence according to the maximum ET reached during the procedure. Results: The maximum ET was on average 37.3 ± 1.0 °C. Only 4 (3.8%) patients had esophageal lesion diagnosed by upper gastrointestinal endoscopy. There were no cases of esophageal perforation. The AF recurrence rate was 9.6% during the follow-up (10 patients, 3 from the ET max < 38 °C group and 7 from the ET max ≥ 38 °C group; p = 0.181). The maximum ET was not associated with AF recurrence after catheter ablation (OR = 1.65, 95% CI = 0.84-3.24, p = 0.14). Conclusions: A low incidence of esophageal injury after AF ablation with the use of a specific esophageal protection protocol was found. There was no esophageal perforation. The AF recurrence rate was similar to that described in the literature.

Objective: The objective of the study is to test whether the use of edible oil might be an early treatment strategy for reducing button battery-induced esophageal injury.Methods: A button battery was inserted into esophageal segments collected from pigs. The esophageal segments were randomly allotted to one of the following six treatments: (1) untreated (nothing injected), (2) lemon juice, (3) orange juice, (4) colza oil, (5) peanut oil, and (6) olive oil. Every hour, the battery discharge and the pH value were measured in the esophageal tissue. After treatment for 6 h, the residual voltage of the battery was measured and the esophageal tissue was processed with H&E staining.Results: In esophageal segments of the untreated group, a large area of the mucous membrane was severely eroded. Partial erosion was observed in esophageal tissues treated with either lemon juice or orange juice. Furthermore, the esophageal tissues were basically intact, had little damage when treated with oils. The highest extra-esophageal discharge voltage was recorded in the untreated group, a medium amount of discharge voltage was recorded in the lemon juice and orange juice groups, and the lowest discharge voltage was recorded in all the edible oils groups.Conclusions: Edible oils immersed the battery, reduced the surrounding electrolysis, and thus attenuated battery discharge. As a result, treatment with edible oils attenuated the pH alkalization and tissue damage in button battery injury of pig esophageal segments. These results indicate that edible oils might be used in the treatment of button battery ingestion.

Objectives - to improve the surgical treatment results in patients with injuries of the esophagus after the elimination of deformation of a vertebral column with metal devices. Material and methods. From 2001 to 2018 we treated 17 patients with esophageal injury appeared as a result of cervical vertebras fixation with metal devices - in 12 patients to correct their instability due to the traumatic compression fractures and in 5 patients having the herniated discs with the spinal channel compression. 12 patients underwent the urgent operation, 5 patients - the delayed or planned one. Three mechanisms of esophageal injury were defined: 5 patients had the first type of injury, 8 - the second type, 4 - the third type. The patients were operated on after the diagnosis confirmation. The operation was aimed at the removal of the metal device from the collum and the closure of the esophagus wall defect. Tactics of treatment of the esophageal injuries depended on the alterations in its paries, the size of the defect, the nature of the trauma and the mediastinitis prevalence. In 8 patients the primary suture of the esophagus was applied. In 9 patients with decubituses of the esophagus and the large size of the defect we applied the partial suturing of the defect and the transesophageal drainage of the fistula and mediastinum, strengthening the injured zone with a muscle on the pedicle. Results. First intention healing was achieved in 5 patients of the 8 ones who underwent the esophagus wall suturing without a fistula transesophageal drainage. The partial suture incompetence occurred in 3 cases and it required the transesophageal drainage through the defect in the esophagus wall. The external tubular esophageal fistula formed in 12 patients. After the drainage removal the fistula closed in 10 cases. One of the 17 patients died of the multiple organ failure and sepsis. Conclusion. Injuries of the esophagus caused by the metal devices fixing the unstable vertebras have the clinical features depending on the installation time. The suturing of the esophageal defect and the suture strengthening m. sternocleidomastoideus on the pedicle supplemented by a through lumenal transesophageal drainage have advantage in comparison with the esophageal wall suturing without drainage.

In pediatric patients, a laryngeal mask airway (LMA) is usually used during minor surgeries that require general anesthesia. No esophageal injury has been reported after insertion of an LMA. We report a case of an esophageal injury with intramural dissection after an i-gel® (size, 1.5; Intersurgical Ltd.) insertion in a pediatric patient. A 2-month-old male infant was hospitalized for left inguinal herniorrhaphy. After induction of anesthesia, a trained resident tried to insert an i-gel® . However, it was only successful after three attempts. Dysphagia was sustained until postoperative day 10, and the pediatrician observed duplication of the esophagus on gastroendoscopy. However, a whitish mucosal lesion, which looked like a scar, was observed, and previous lesions suggestive of esophageal duplication were almost healed on postdischarge day 11. His condition was diagnosed as dysphagia and esophagitis due to an esophageal laceration, not esophageal duplication. He was scheduled for symptomatic treatment with a proton pump inhibitor. In conclusion, although an esophageal injury or perforation in pediatric patients is rare, an LMA insertion or a procedure such as aspiration or nasogastric tube insertion should be performed gently to avoid a possible injury to the esophagus in pediatric patients.

There is no standard treatment protocol for acute corrosive injury of esophagus and most patients are treated with proton pump inhibitors (PPIs). However clinical studies evaluating efficacy of PPIs in caustic injury are lacking. We conducted a prospective observational study where 30 consecutive patients presenting to Madras Medical College Hospital and Research Center, Chennai with alleged history of corrosive ingestion meeting study criteria were included in the study. Data was obtained on the agent and amount of corrosive ingestion. Initial esophago-gastro-duodenoscopy (EGD) was done within 24 hours of consumption of corrosive agent and injury to esophagus graded according to Zargar classification. All patients with mucosal injury received 80mg intravenous pantoprazole stat followed by 8mg/hr infusion. Second upper gastrointestinal (UGI) endoscopy limited to assessment of esophageal injury was performed after 72 hours of high dose PPI. Mucosal healing is seen by 1 grade in 76.6% and by 2 grades in 20% of patients receiving high dose pantoprazole. 1 patient with grade 3 injury did not show improvement in grade of injury. None of the patients had worsening of injury grade. High dose pantoprazole helps in mucosal healing in acute corrosive injury of esophagus and should form integral part of treatment of acute corrosive injury. [ABSTRACT FROM AUTHOR]

• Most common mechanism of esophageal perforation is iatrogenic. • High index of suspicion in penetrating chest trauma followed by relevant investigations may reduce delay. • Early primary repair is sufficient for select cases of traumatic esophageal perforation. • Associated injuries are more likely in such cases to lead to increased morbidity. Mortality after esophageal perforation is high irrespective of the treatment modality. The rarity of traumatic esophageal perforations has made it difficult to conduct comprehensive studies that can answer pertinent questions with regard to management. We report a case of through and through thoracic esophageal injury caused by an assailant's arrow in a young physically active male adult. Diagnosis was made on-table. He successfully underwent primary repair of the esophageal injury 16 h post injury via a left thoracotomy. Recurrent lung collapse and pleural effusion was managed with tube thoracostomy and chest physiotherapy. Esophageal perforations occur infrequently and may produce vague symptoms leading to diagnostic and therapeutic delays. High index of suspicion particularly in penetrating chest trauma followed by relevant investigations may reduce delay. Principles of management include treatment of contamination, wide local drainage, source control and nutritional support. Source control is achieved surgically or through endoluminal placement of stents. Surgical options include primary repair, creation of a controlled fistula by T-tube or esophageal exclusion. Primary repair of traumatic injury to a healthy esophagus is feasible for cases diagnosed early and without significant mediastinal contamination as in our case. Associated injuries are more likely in such cases to lead to increased morbidity and prolonged hospital stay and must be handled carefully. [ABSTRACT FROM AUTHOR]

The esophageal caustic injury is rare, but it requires precise and complex management. A variety of reconstruction techniques have been done, but despite the increasing volume, the incidence of complications is still relatively high. We reported the experience in our center in handling esophageal reconstruction in patients with caustic esophageal injury that caused oesophageal stricture between 2014-2017. This study used case series method with literature review. The results showed that between 2014-2017, there were 3 patients with caustic esophageal injury. All patients undergoing esophageal reconstruction surgery were included under conditions of malnutrition. Two were caused by HCl and the rest by NaOH. All patients underwent a resection of stricture segment of the esophagus, either using partial or total esophagectomy. Anastomosis leakage occurred in all cases, but improved with conservative treatment. The average length of hospitalization was 27 days. The intraoperative blood loss in patients ranged from 450-700 cc. In conclusion, proper preliminary management can provide approppiate preparation of the patients for definitive or reconstructive surgery, especially to avoid malnutrition. The ideal reconstruction still could not be established, and the rate of postoperative complications was still high. The length of patient hospitalization was also relatively long.

Press-through package (PTP) is the most common accidentally ingested foreign body in Japan. Accidental ingestion of PTP can result in esophageal damage. An approach for evaluating the risk of esophageal injury has not been established. Therefore, we used porcine esophageal tissue and silicone sheets to establish a method for assessing the risk of esophageal damage on accidental PTP ingestion. We pathologically evaluated porcine lower esophageal tissue using a scratch tester. Using porcine esophageal tissue, scratch tests were performed with 4 test objects and pathological damage was compared. It was assumed that each object was accidentally ingested. The objects were polyvinylidene chloride (PVDC)-coated polyvinyl chloride (PVC) PTP, soft PThPa, round PTP, and a disposable scalpel. The porcine esophagus was replaced with a silicon sheet, and an automatic friction machine was used for quantitative evaluation. The silicon sheet was scratched using HHS 2000 with 750-g load at 50 mm/min. We investigated the frictional force exerted on the surface for each of the objects. The degree of damage (depth) was the highest for the disposable scalpel, followed by PVDC-coated PVC PTP, while the degree of damage (depth) was the lowest for soft PThPa and round PTP. The mean frictional forces on the silicon sheet were 524.0 gf with PVDC-coated PTP, 323.5 gf with soft PThPa, 288.7 gf with round PTP, and 922.7 gf with the disposable scalpel. We developed approaches to qualitatively and quantitatively evaluate the risk of esophageal damage after accidental PTP ingestion. Our findings indicate that the risk of gastrointestinal damage after accidental PTP ingestion is low with soft PTP and round PTP.

Background: The combination of cervical spondylodiscitis and esophageal fistula is rare but life-threatening. Due to both the rarity of these conditions' coincidence and the complexity and heterogeneity of individual cases, there is no optimal treatment or management approach. The aims of this study are to obtain an overview of patients' outcomes and to discuss treatment options. Method: This study is a retrospective analysis of patients who presented with cervical spondylodiscitis and associated esophageal fistula between January 2010 and November 2018. We examined reports of 59 patients who suffered from cervical spondylodiscitis and included nine patients (15.25%) who had an esophageal fistula as the underlying cause. We assessed clinical findings, treatment, and outcome. Results: Three of the nine patients were female, and the mean age of the sample was 64.56 years. Six of the patients had a history of esophagopharyngeal cancer and had undergone tumor resection followed by radiotherapy. Two of the remaining patients' fistulas were caused by an iatrogenic injury during cervical spine surgery and a swallowed toothpick; in the final case, the origin remained unclear. Five patients presented with tetraparesis or tetraplegia, and the other four patients were neurologically intact. In seven cases, dorsal instrumentation was initially performed. Three patients secondarily received a ventral approach for debridement, and one received explantation of the ventral implants. Two patients died during the hospital stay, and three were transferred to a palliative care unit. Thus, the spondylodiscitis and esophageal fistula were cured in only four patients. At discharge, two patients were neurologically intact, two others remained in tetraparesis. Conclusions: Cervical spondylodiscitis in association with an esophageal fistula carries high morbidity and high mortality. Because patients whose infections are not cured have high morbidity, we recommend using interdisciplinary and individual management, including definite surgical treatment of the discitis and fistula, in every case. [ABSTRACT FROM AUTHOR]

Radiation-induced acute injury is the main reason for the suspension of radiotherapy and unsuccessful treatment of cancer. It is of great importance to understand the molecular mechanism of radiation-induced esophageal injury. We used RNA-seq data from normal esophageal tissue and irradiated esophageal tissues and applied computational approaches to identify and characterize differentially expressed genes and detected 40 059 messenger RNAs (mRNAs) previously annotated and 717 novel long non-coding RNAs (lncRNAs). There were 14 upregulated and 32 downregulated lncRNAs among the differentially expressed lncRNA group. Their target genes were involved in the mRNA surveillance pathway, pathological immune responses, and cellular homeostasis. Additionally, we found 853 differentially expressed mRNAs, and there were 384 upregulated and 469 downregulated mRNAs. Notably, we found that the differentially expressed mRNAs were enriched for steroid biosynthesis, the tumor necrosis factor signaling pathway, focal adhesion, pathways in cancer, extracellular matrix–receptor interaction, and so on. The response of normal esophageal tissues to ionizing radiation is multifarious. The radiation-induced cell damage response by multiple pathways followed by pathological immune responses activated. Studies on the dynamic network of molecules involved in radiation-induced esophageal injury are under way to clarify the regulatory mechanisms and identify the candidate targets. [ABSTRACT FROM AUTHOR]

Blunt neck trauma is an uncommon, life-threatening injury that may result in tracheoesophageal transection. The manifestations of these traumas are rather vague and nonspecific; therefore, the injury may be missed, if a careful attention is not paid. A 23-year-old young man presented with complete transection of the trachea and concurrent esophageal injury, caused by clothesline-type blunt neck trauma, while riding a motorcycle. On early examination, the patient was hemodynamically stable; however, after a few minutes, he manifested respiratory distress and progressive subcutaneous emphysema. The airway immediately was secured by inserting an endotracheal tube in distal part of the transected trachea. Afterward, the patient underwent primary repair of transected trachea and esophagus, and tracheostomy. The post-operative period was uneventful. The blunt traumas to neck, which lead to complete transection of the trachea and the esophagus, are rare injuries. Clothesline-type injuries are the principal reasons for cricotracheal separation and further esophageal injuries. In most cases, subcutaneous emphysema is a sign of significant trauma to the aerodigestive tract. After securing the patient's airway, early surgical repair of the transected trachea and esophagus reduces the risk of further complications. This report discusses a rare, life-threatening presentation of blunt neck trauma called clothesline-type injury, that led to complete transection of the trachea and concurrent esophageal rupture. Establishing a secure airway for those patients with tracheal injuries is required. Repairing the injured trachea and esophagus primarily at the earliest possible time can improve the patient prognosis and prevent further complications. • Blunt neck trauma is an uncommon, life-threatening injury that may lead to tracheoesophageal transection • Progressive subcutaneous emphysema is a prominent sign, that indicates significant trauma to the aerodigestive tract • Establishing a secure airway in patient with blunt trauma to neck would be life-saving • Repairing the injured trachea and esophagus primarily at the earliest possible time can improve the patient prognosis and prevent further complications [ABSTRACT FROM AUTHOR]

Background: Even with the use of a reduced energy setting (20–25 W), excessive transmural injury (ETI) following catheter ablation of atrial fibrillation (AF) is reported to develop in 10% of patients. However, the incidence of ETI depends on the pulmonary vein isolation (PVI) method and its esophageal temperature monitor setting. Data comparing the incidence of ETI following AF ablation with and without esophageal temperature monitoring (ETM) are still lacking. Methods: This study was comprised of 160 patients with AF (54% paroxysmal, mean: 24.0±2.9 kg/m2). Eighty patients underwent ablation accompanied by ETM. The primary endpoint was defined as the occurrence of ETI assessed by endoscopy within 5 d after the AF ablation. The secondary endpoint was defined as AF recurrence after a single procedure. If the esophageal temperature probe registered >39 °C, the radiofrequency (RF) application was stopped immediately. RF applications could be performed in a point-by-point manner for a maximum of 20 s and 20 W. ETI was defined as any injury that resulted from AF ablation, including esophageal injury or periesophageal nerve injury (peri-ENI). Results: The incidence of esophageal injury was significantly lower in patients whose AF ablation included ETM compared with patients without ETM (0 [0%] vs. 6 [7.5%], p=0.028), but not the incidence of peri-ENI (2 [2.5%] vs. 3 [3.8%], p=1.0). AF recurrence 12 months after the procedure was similar between the groups (20 [25%] in the ETM group vs. 19 [24%] in the non-ETM group, p=1.00). Conclusions: Catheter ablation using ETM may reduce the incidence of esophageal injury without increasing the incidence of AF recurrence but not the incidence of peri-ENI.

Thoracic oesophageal gunshot injuries are uncommon, and the morbidity and mortality rates are extremely high and depend on the elapsed time, injury severity, and concomitant organ damage. Thus, early diagnosis is paramount to avoid delays, which in turn confer poorer outcomes. Current management strategies are still controversial and depend on the patient's physiologic state. We experienced two cases of thoracic oesophageal gunshot injury, both of whom were treated by primary repair and were successfully discharged. Decision-making strategies should be based on the patient's physiologic reserve, experience of the attending surgical team, and ancillary services available at the facility.

Background: Esophageal injury following catheter ablation of atrial fibrillation (AF) is reported to occur in 35% of patients. Even with a low energy setting (20–25 W), lesions develop in 10% of patients. Body mass index (BMI) has been reported to be a predictor of esophageal injury, indicating that patients with a low BMI (39 °C, radiofrequency (RF) application was stopped immediately. RF application could be performed in a “point by point” manner for a maximum of 20 s. Endoscopy was performed 1–5 days after ablation. Results: Esophageal mucosal injury was not observed in any patient in the study. Conclusions: Catheter ablation using ETM reduced the incidence of esophageal injuries, even in patients with a low BMI.

Highlights • Esophageal injury can be found asymptomatically after atrial fibrillation ablation. • Distance between esophagus and left atrium closely correlated with esophageal injury. • Measurement of this distance on computed tomography predicts esophageal injury. • Measured distance on computed tomography below 2.9 mm has a risk of esophageal injury. Abstract Background Esophageal injury (EI) is a serious complication that occurs after catheter ablation of atrial fibrillation (AF), however predictable factor of EI is unclear. Methods Among 308 patients who underwent AF ablation, upper gastrointestinal tract endoscopy was performed the next day after ablation to examine for EI. To define the primary factor that predicts EI, patients' characteristics, number and amount of radiofrequency energy applied to the posterior wall, ablation procedure, and the shortest distance between esophagus and posterior left atrium measured on contrast computed tomography (SD-CT) were analyzed. Results EI was found in 27 patients (8.8%). There were no significant differences in the patient characteristics, number and amount of radiofrequency energy applied to posterior wall or ablation procedure between patients with (Injury Group) and without EI (Non-Injury Group). However, SD-CT in the Injury Group was significantly shorter than that in Non-Injury Group (2.3 ± 0.6 mm vs 4.1 ± 0.9 mm, p < 0.001). The area under a receiver operating characteristic curve using SD-CT as a predictive marker in EI patients was 0.988 (p < 0.001). When the cut-off value of SD-CT was set at 2.9 mm, the sensitivity and specificity for EI diagnosis were 92.3% and 96.8%, and the positive predictive value and negative predictive value were 0.75 and 0.99, respectively. Conclusions EI observed after catheter ablation of AF was closely associated with the SD-CT. Patients with SD-CT below 2.9 mm have a potential risk of EI and thus must be strictly followed. [ABSTRACT FROM AUTHOR]

Button (Disc) battery impaction in the esophagus is a time critical presentation with significant associated morbidity and mortality. We present the case of a 15-month old boy with an unwitnessed foreign body ingestion, and who was subsequently found to have two ingested lithium button batteries, which were lodged at the upper esophagus, distal to cricopharyngeus. We discuss the “macaroon sign” of two button batteries lying parallel to one another, with both positive poles facing each other, as this may be an unusual barrier to urgent identification of the impacted foreign body as batteries. 0.25% acetic acid was used as a neutralising agent at the time of button battery removal (8 h after ingestion), based on published evidence that this effectively decreases tissue pH and mitigates the severity of the injury in animal models, whilst not increasing ambient tissue temperature as once thought [ 4 ]. Our patient had a significantly better clinical outcome than predicted from the severity of the burn at time of button battery removal, suggesting acetic acid used topically is a safe adjunct treatment of impacted ingested button batteries and may reduce the likelihood of serious long term sequelae. [ABSTRACT FROM AUTHOR]

Foreign body ingestion is a common clinical problem met in paediatric practice. Though an expectant line of management is indicated in most instances, ingested button batteries warrant emergency endoscopy and retrieval. When impacted, they can result in mucosal damage as a consequence of mechanical, chemical and electrical injury as well as systemic heavy-metal toxicity. Here we report the case of a three-year-old child who presented with features suggestive of impacted oesophageal foreign body. X ray neck revealed the characteristic features, confirming the diagnosis of an impacted button battery. The battery was successfully retrieved endoscopically with fluoroscopic assistance.

Background: To study the relationship of esophageal strictures with esophageal injury after corrosive intake Methods: In this cross-sectional study 142 patients with a history of corrosive intake and positive clinical findings were recruited. Patients underwent upper gastrointestinal endoscopy during the first 48 hours after ingestion in order to assess the extent of injury according to the grading system and after 6 weeks, endoscopy was repeated for documentation of stricture formation. Results: Sixty two(43.7%) patients had severe esophageal injury 80 (56.3%) had mild injury. At 6 weeks, repeat endoscopy showed stricture formation among 34 (23.9% patients while 108 (76.05%) did not develop any stricture. Only 8.7% patients with mild esophageal injury developed stricture compared to 27 (43.5%) patients with severe esophageal injury (relative Risk 4.97, 95% Confidence Interval 2.32 to 10.66, p-value 0.00) and this difference was highly statistically significant. Conclusion: Patients with high-grade esophageal injury have progressively higher frequency of stricture formation after corrosive intake.

This clinical case report shows a rare complication following pulmonary vein isolation, with the esophageal wall injured during the procedure and a hematoma developed on the wall.

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Esophageal perforation is a dreaded complication of anterior cervical spinal surgery. A 52-year-old diabetic man had undergone a surgery for a C6-C7 disc prolapse and developed spiking fever with chills and rigor on the 7th postoperative day. No cause could be found out but a CT scan of thorax done in the course of investigations revealed pneumomediastimum. The patient succumbed on the 10th day after surgery. Autopsy revealed the cause of death to be mediastinitis following iatrogenic esophageal perforation. A second patient, 53 years of age, following surgery for C5-C6 disc prolapse and developed intractable dysphagia. Later, fever and purulent discharge from the wound prompted an MRI showing prevertebral collection extending to the superior mediastinum. Presuming only wound infection, debridement and implant removal was done. However persistent serous discharge from the wound revealed an esophageal injury. Late diagnosis precluded primary repair. With conservative treatment, the fistula finally closed after 42 days. Postoperative dysphagia, a common complaint following surgery, may not always be present in cases of esophageal injury. A high index of suspicion is required for diagnosing and initiating treatment for esophageal perforation before complications set in. [ABSTRACT FROM AUTHOR]