Innovative Surgical Sciences最新文献

Objectives: To investigate the risk factors for early recurrence after curative pancreatoduodenectomy for resectable pancreatic ductal adenocarcinoma.

Methods: All data were retrospectively collected from patients with resectable pancreatic ductal adenocarcinoma who had undergone pancreatoduodenectomy at the Department of Surgery, Phramongkutklao Hospital, from January 2015 to December 2020. The preoperative and perioperative risk factors were included into the analysis.

Results: In total, 34 patients were included in the study. The median time for recurrence and median survival time were 17 and 20 months, respectively. The 1, 3, and 5 year disease-free survival rates were 59.6%, 23.87%, and 23.87%, respectively, while the 1, 3, and 5 year overall survival rates were 81%, 24.7%, and 12.4%, respectively. Seventeen patients (50%) from a total of 34 patients had recurrence, and ten patients (29.41%) had recurrence within 12 months. The independent preoperative risk factor associated with adverse disease-free survival was tumor size > 4 cm (hazard ratio [HR], 14.34, p=0.022). The perioperative risk factors associated with adverse disease-free survival were pathological lymphovascular invasion (HR, 4.31; p=0.048) and non-hepatopancreatobiliary surgeon (HR, 5.9; p=0.022). Risk factors associated with poor overall survival were microscopical margin positive (R1) resection (HR, 3.68; p=0.019) and non-hepatopancreatobiliary surgeon (HR, 3.45; p=0.031).

Conclusions: Tumor size > 4 cm from the preoperative imaging study was a poor prognostic factor for early recurrence after curative pancreatoduodenectomy for resectable pancreatic adenocarcinoma indicated that they may have radiological occult metastasis, thus, staging laparoscopy may reduce the number of unnecessary laparotomies and avoid missing radiologically negative metastases.

Objectives: Pneumatosis intestinalis is a rare condition with subserosal or submucosal gas-filled cysts of the gastrointestinal tract. It is often associated with acute mesenteric ischemia, but also non-ischemic causes are described.

Case presentation: A 27-year-old male patient with severe congenital spastic tetraparesis presented to the emergency room with fever and reduced general condition. The patient was hypotonic and tachycardic, had a fever up to 39.7 °C and reduced peripheral oxygen saturation. The laboratory analyses revealed leukocytosis (16.7 G/L) and elevated CRP (162 mg/L).The patient was admitted to the intensive care unit (ICU) for invasive ventilator treatment because of global respiratory insufficiency and antibiotic therapy due to acute pneumonia and severe acute respiratory distress syndrome (ARDS). In addition, he suffered from colonic pseudo-obstruction but with persistent stool passage. After pulmonary recovery, he was transferred to the normal ward of internal medicine, but signs of colonic pseudo-obstruction were still present.Under therapy with diatrizoic acid and neostigmine, the abdomen was less distended, and the patient had regular bowel movements. After four days, the patient developed sudden acute abdominal pain and suffered sudden pulseless electrical activity. Immediate cardiopulmonary resuscitation was provided. After the return of spontaneous circulation, the patient underwent computed tomography (CT) and was re-admitted to the ICU. The CT scan showed massive dilatation of the colon, including pneumatosis coli, extensive gas formation within the mesenteric veins and arteries, including massive portal gas in the liver, the splenic vein, the renal veins, and disruption of abdominal aortic perfusion. The patient was then first presented for surgical evaluation, but due to futile prognosis, treatment was ceased on the ICU.

Conclusions: In conclusion, colonic pseudo-obstruction might have led to colonic necrosis and consecutive massive gas formation within the mesenteric vessels. Therefore, intestinal passage should be restored as soon as possible to avoid possible mortality.

Background: Minimally invasive methods in pilonidal sinus disease (PSD) surgery are becoming standard. Although long-term results are available for some techniques, long-term outcome data of patients after pit picking is lacking. We aimed at investigating perioperative and long-term outcomes of patients undergoing pit picking, Limberg flap or primary open surgery to treat PSD.

Methods: In a single-centre observational study, we evaluated the outcomes of 327 consecutive patients undergoing PSD surgery between 2011 and 2020.

Results: PSD had recurred in 22% of Limberg flap patients and 62% of pit picking patients at 5 years (p=0.0078; log rank test). Previous pilonidal surgeries, smoking, body mass index, immunodeficiency, and diabetes did not significantly influence the long-term recurrence rate. Primary open treatment was performed for 72% of female patients presenting with primary disease.

Conclusions: Due to its especially dismal long-term results, pit picking should be abandoned, and Limberg flap should be promoted instead, even for primary disease and in females.

Background: Modern therapy concepts are of limited success in patients with cholestasis (e.g., biliary occluding malignancies). Therefore, we established a new animal model enabling simultaneous investigation of liver regeneration and hepato-biliary remodelling in biliary obstructed and biliary non-obstructed liver lobes.

Methods: Biliary occlusion of different extent was induced in 50 male rats: Ligation and transection of the common bile duct (100% of liver, tBDT, n=25); or of the left bile duct (70% of liver, sBDT, n=25). At postoperative days 1, 3, 7, 14 and 28 we assessed the hepatic histomorphological alterations, proliferative repair, progress of liver fibrosis (HE, BrdU, EvG) and signs of liver regeneration (liver lobe weight gain). In addition, we determined systemic markers of hepatocellular injury (ASAT, ALAT), cholestasis (Bilirubin) and synthetic liver function (INR). The animals were monitored daily (body weight gain, stress score, survival).

Results: All animals survived until the planned date of sacrifice. sBDT induced in the biliary occluded liver lobes similar histomorphological alterations, proliferative repair and progress of liver fibrosis like tBDT. In the biliary non-ligated liver lobes in sBDT animals we noticed a temporarily enhanced biliary proliferation and a persistent low grade liver fibrosis in the periportal area.

Conclusions: Our model of sBDT represents a safe and valid method to induce selective cholestasis. The model enables further comparative investigation of liver regeneration in different extents of occlusive cholestasis (e.g., mimicking biliary occluding malignancies).

Little is known about the relationship between snoring and the development of carcinomas of the gastro-oesophageal junction. The aim of the paper is to draw attention to snoring induced reflux (SnoR) observed during a routine preoperative examination in a patient with AEG type II after neoadjuvant chemotherapy. During the examination the patient (body mass index 26.5) started to snore deeply. As a consequence, remarkable morphological-functional changes at the gastro-oesophageal junction became apparent. Reflux was periodically aspirated, accompanied by snoring on inspiration. In our patient, the carcinoma developed precisely at this point of contact. The phenomenon of SnoR is demonstrated in a video. SnoR could be an explanation for the described correlation between snoring and the occurrence of carcinomas in the gastro-oesophageal junction. Further studies on the phenomenon of SnorR could be of major interest for the understanding of AEG carcinomas. It is possible that new preventive measures can be derived from these findings.