Pneumoretroperitoneum, Pneumomediastinum, Pneumothorax, and Subcutaneous Emphysema after Diagnostic Colonoscopy / 대한소화기학회지

Colonoscopy is a commonly performed endoscopic procedure. Although it is generally considered to be safe, serious complications, such as colorectal perforation, can occur. Most colonic perforations are intraperitoneal and cause pneumoperitoneum with acute abdominal pain as the initial symptom. However, extraperitoneal perforations with pneumoretroperitoneum may happen, albeit rarely, with atypical initial symptoms. We report a rare case of rectosigmoid perforation occurring after diagnostic colonoscopy that developed into pneumoretroperitoneum, pneumomediastinum, pneumothorax, and subcutaneous emphysema, with a change in voice and neck swelling as the initial symptoms. The patient was successfully treated with endoscopic closure of the perforation and conservative management.

Pneumomediastinum and Pneumoretroperitoneum Induced by Foreign Body in Bronchus

A 5-year-old boy was on medication after diagnosed with infantile spasm, and had regular diet with bedridden state. The patient had intermittent fever and cough lasting 1 week before admission. Symptom was worsened from the night before the first day of admission, and chest swelled up on the day of admission. Chest computed tomography (CT) was performed and showed extensive subcutaneous emphysema in neck, thorax, and abdomen. Pneumomediastinum, pneumoretroperitoneum, and right lung atelectasis was accompanied. An emergency bronchoscopy was performed because of the suspicion of complete obstruction of left main bronchus. The distal part of left main bronchus was completely obstructed by multiple polypoid masses. The mass was removed with a laser incision, and a foreign body surrounded by mucus was found. It was removed with a forceps. At 2 days after the removal, the subcutaneous emphysema was improved, and the chest CT taken 14 days later showed stenosis but no obstruction.

Pneumoretroperitoneum, Pneumomediastinum, Subcutaneous Emphysema After a Rectal Endoscopic Mucosal Resection

An endoscopic mucosal resection (EMR) is an effective and safe therapeutic technique for treating a patient with a laterally-spreading tumor (LST). Colonoscopic-procedure-related complications are noted to be about 2.8% worldwide, and a perforation is the most common. Most colon perforations cause pneumoperitoneum. However, a perforation within the retroperitoneal portion of the colon (rectum and some of sigmoid colon) may cause an extraperitoneal perforation, and the leaking free air may induce pneumoretroperitoneum, pneumomediastinum, and subcutaneous emphysema, depending on the amount of discharged air. Herein, we present the case of a patient with an extraperitoneal colon microperforation which manifested as pneumoretroperitoneum, pneumomediastinum, and subcutaneous emphysema after an EMR for a sigmoid LST, which was successfully treated with medical treatment and endoscopic clipping.

Pneumoretroperitoneum, pneumomediastinum and subcutaneous emphysema after endoscopic submucosal dissection of a rectal lateral spreading tumor / Pneumorretroperitônio, pneumomediastino e enfisema subcutâneo após dissecção endoscópica da submucosa de lesão retal de crescimento lateral

Introduction: Endoscopic submucosal dissection (ESD) is an already established procedure in the treatment of gastric and esophageal cancer in its early stages. Colorectal lesions, initially approached by endoscopic mucosal resection en bloc or in fragments, are the current focus for submucosal approach, especially for superficial lateral spreading tumor of 20 mm-diameter. The experience of Japanese centers, which are reference in therapeutic endoscopy, demonstrates reduction in the rate of disease recurrence with this approach and, according to specific histopathological criteria, may avoid colectomy in some cases of malignant neoplasia. Case report: The patient was 50-year-old female. She underwent endoscopic submucosal dissection of a rectal lateral spreading tumor measuring 50 mm, located 8 cm from the anal margin. The procedure was performed without major complications, with just two points for muscle layer detachment, without gross perforation and closed with metal clips. However, the patient developed air leakage to the peritoneum, retroperitoneum, mediastinum and subcutaneous tissue, being only treated with clinical procedures and without additional intervention. Conclusion: It is vital to know and be able to apply the technique of ESD, in addition to addressing its complications, since despite the numerous benefits compared to surgery, ESD can result in serious outcomes. (AU)

Introdução: A dissecção endoscópica da submucosa (ESD) já é procedimento consagrado no tratamento do câncer gástrico e esofagiano em suas fases precoces. As lesões colorre-tais, inicialmente abordadas por mucossectomia, em bloco ou em fragmentos, são o foco atual para a abordagem submucosa, principalmente para os tumores de crescimento lateral superficial a partir de 20 mm de diâmetro. A experiência de centros japoneses, referências em endoscopia terapêutica, demonstram redução no índice de recidiva da doença com esta abordagem e, segundo critérios histopatológicos específicos, podem evitar uma colectomia em alguns casos de neoplasia maligna. Relato de caso: Trata-se de paciente de 50 anos, submetida à dissecção endoscópica da submucosa de lesão de crescimento lateral, com 50 mm, localizada no reto, a 8 cm da margem anal. O procedimento foi realizado sem maiores intercorrências, com apenas dois pontos de afastamento da muscular, sem perfuração grosseira, fechados com clipe. Entretanto, a paciente evoluiu com escape aéreo para peritônio, retroperitônio, mediastino e subcútis, sendo tratada sem intervenção adicional, apenas com manejo clínico. Conclusão: É de fundamental importância conhecer e saber aplicar a técnica da ESD, além de abordar suas complicações, uma vez que, mesmo repleta de benefícios em relação à cirurgia, ela pode apresentar desfechos graves. (AU)

Pneumoretroperitoneum After Procedure for Prolapsed Hemorrhoid

Procedure for prolapsed hemorrhoid (PPH) is well recognized alternative to the traditional hemorrhoidectomy, and is associated with reduced pain and earlier return to normal activity. Over the past decade, there have been reports of severe life-threatening complications after a PPH, although the incidence is very low. Rectal perforation due to staple-line dehiscence is one of the serious complications that can cause severe pelvic sepsis or a pneumoretroperitoneum. Here, the first Korean case of a pneumoretroperitoneum due to staple-line dehiscence is described.

Bilateral pneumothoraces, pneumomediastinum, pneumoperitoneum, pneumoretroperitoneum, and subcutaneous emphysema after percutaneous tracheostomy: A case report / 대한마취과학회지

We report a rare case of a 72-year-old female who developed extensive subcutaneous emphysema, bilateral pneumothoraces, pneumomediastinum, pneumoperitoneum, and pneumoretroperitoneum after a percutaneous dilatational tracheostomy. The patient's T-cannula was accidentally connected to the oxygen line with a non-perforated connector. The patient rapidly developed respiratory insufficiency and subcutaneous emphysema in the neck and both shoulders. The bilateral pneumothoraces were managed using a chest tube. CT scans of the chest, abdomen, and pelvis revealed an extensive distribution of air throughout the chest and abdomen. The patient was treated successfully with supportive care. This case illustrates the rare occurrence of air passing into multiple body compartments, highlighting the potentially serious complications of a tracheostomy and the importance of intensive care during the recovery period.

Pneumomediastinum due to inadvertent bladder perforation during transurethral resection of the prostate : A case report / 대한마취과학회지

Transurethral resection of the prostate (TURP) is a common procedure for managing benign prostatic hyperplasia (BPH), and this procedure is associated with low complication rates. Bladder perforation is an unusual complication of TURP, and it may create an air leak into the retroperitoneal space. Here we describe a case of pneumomediastinum, pneumoretroperitoneum and subcutaneous emphysema that were all due to a bladder perforation that occurred during performing TURP in a 74-year-old male patient with BPH.

A Case of Pneumoperitoneum, Pneumoretroperitoneum, Pneumomediastinum, and Subcutaneous Emphysema after Endoscopic Submucosal Resection / 대한소화기내시경학회지

Flexible fiberoptic colonoscopy is extensively used for the diagnosis and management of colorectal disease. Many possible complications can occur. The most common and most serious complications are hemorrhage, perforation and respiratory problems. Colonic perforation usually results in a fatal and emergent condition. However, management of iatrogenic colonic perforation has been controversial. The choice between the medical versus the surgical approach has been dependent on the mechanism of the perforation, bowel preparation, location, size of the defect and severity of symptoms. We report here a case where colonic perforation emerged during endoscopic submucosal resection of a rectal tumor. The rectal perforation was accompanied with pneumoperitoneum, subcutaneous emphysema, pneumoretroperitoneum and pneumomediastinum. As the bowel preparation was excellent, intravenous antibiotics and total parenteral nutirition were administered. The patient was treated successfully without any complications.

A Case of Pneumoperitoneum, Pneumoretroperitoneum, Pneumomediastinum, and Subcutaneous Emphysema after Endoscopic Submucosal Resection / 대한소화기내시경학회지

Flexible fiberoptic colonoscopy is extensively used for the diagnosis and management of colorectal disease. Many possible complications can occur. The most common and most serious complications are hemorrhage, perforation and respiratory problems. Colonic perforation usually results in a fatal and emergent condition. However, management of iatrogenic colonic perforation has been controversial. The choice between the medical versus the surgical approach has been dependent on the mechanism of the perforation, bowel preparation, location, size of the defect and severity of symptoms. We report here a case where colonic perforation emerged during endoscopic submucosal resection of a rectal tumor. The rectal perforation was accompanied with pneumoperitoneum, subcutaneous emphysema, pneumoretroperitoneum and pneumomediastinum. As the bowel preparation was excellent, intravenous antibiotics and total parenteral nutirition were administered. The patient was treated successfully without any complications.

Spontaneous Pneumoretroperitoneum

The pneumoretroperitoneum has many etiologies. These range from the clinically insignificant to the potentially fatal, if not recognized promptly. Spontaneous pneumoretroperitoneum can develope from ulcerative colitis, colonic diverti-culitis, or duodenal ulcer perforation. It can be associated with pneumothorax, pneumomediastinum, respiratoy tract rupture, etc. An isolated pneumoretroperitoneum are a more obscure symptom than a pneumoperitoneum. Mostly, the diagnosis of retroperitoneal air depends of radiologic methods, such as simple X-ray, ultrasound (US), or computerized tomography (CT) measurements. In this case, we diagnosed a pneumoretroperitoneum from CT and found that it caused the perforation of the colon spontaneously, without any underlying diseases, due to chronic constipation without underlying diseases

Pneumomediastinum, Subcutaneous Emphysema, Pneumoperitoneum and Pneumoretroperitoneum after Nephrectomy: A case report / 대한마취과학회지

Pneumomediastinum, air within the planes of the mediastinum, occurs in a wide variety of clinical settings. In the perioperative period, pneumomediastinum is caused by various anesthetic and surgical complications, but may appear spontaneously. When pneumomediastinum occurs with no apparent cause, it is referred to as a spontaneous pneumomediastinum. The suggested mechanism of spontaneous pneumomediastinum is rupture of marginal alveoli due to increased intraalveolar pressure and dissection of air along the bronchovascular sheath into the mediastinum. Predisposing factors include raised intrathoracic pressure, as with coughing, vomiting, and Valsalva maneuvers. The auther's case is presented of pneumomediastinum, with subcutaneous emphysema, pneumoperitoneum, and pneumoretroperitoneum, occurring one day postoperatively, in a 26-year-old female patient who underwent nephrectomy under general anesthesia. The patient was treated conservatively with oxygen and had an uneventful recovery. The authors discuss the possible causes and its management with a review of the relevant literature.

Pneumomediastinum, Subcutaneous Emphysema, Pneumoperitoneum and Pneumoretroperitoneum after Nephrectomy: A case report / 대한마취과학회지

Pneumomediastinum, air within the planes of the mediastinum, occurs in a wide variety of clinical settings. In the perioperative period, pneumomediastinum is caused by various anesthetic and surgical complications, but may appear spontaneously. When pneumomediastinum occurs with no apparent cause, it is referred to as a spontaneous pneumomediastinum. The suggested mechanism of spontaneous pneumomediastinum is rupture of marginal alveoli due to increased intraalveolar pressure and dissection of air along the bronchovascular sheath into the mediastinum. Predisposing factors include raised intrathoracic pressure, as with coughing, vomiting, and Valsalva maneuvers. The auther's case is presented of pneumomediastinum, with subcutaneous emphysema, pneumoperitoneum, and pneumoretroperitoneum, occurring one day postoperatively, in a 26-year-old female patient who underwent nephrectomy under general anesthesia. The patient was treated conservatively with oxygen and had an uneventful recovery. The authors discuss the possible causes and its management with a review of the relevant literature.