Background It remains unclear whether extended lymphadenectomy provides oncological advantages in colorectal cancer. This multicentre RCT aimed to address this issue. Methods Patients with resectable primary colonic cancer were enrolled in four hospitals registered in the COLD trial, and randomized to D2 or D3 dissection in a 1 : 1 ratio. Data were analysed to assess the safety of D3 dissection. Results The study included the first 100 patients randomized in this ongoing trial. Ninety‐nine patients were included in the intention‐to‐treat (ITT) analysis (43 D2, 56 D3). Ninety‐two patients received the allocated treatment and were included in the per‐protocol (PP) analysis: 39 of 43 in the D2 group and 53 of 56 in the D3 group. There were no deaths. The 30‐day postoperative morbidity rate was 47 per cent in the D2 group and 48 per cent in the D3 group, with a risk ratio of 1·04 (95 per cent c.i. 0·68 to 1·58) (P = 0·867). There were two anastomotic leaks (5 per cent) in the D2 group and none in the D3 group. Postoperative recovery, complication and readmission rates did not differ between the groups in ITT and PP analyses. Mean lymph node yield was 26·6 and 27·8 in D2 and D3 procedures respectively. Good quality of complete mesocolic excision was more frequently noted in the D3 group (P = 0·048). Three patients in the D3 group (5 per cent) had metastases in D3 lymph nodes. D3 was never the only affected level of lymph nodes. N‐positive status was more common in the D3 group (46 per cent versus 26 per cent in D2), with a risk ratio of 1·81 (95 per cent c.i. 1·01 to 3·24) (P = 0·044). Conclusion D3 lymph node dissection is feasible and may be associated with better N staging. Registration number: NCT03009227 ( http://www.clinicaltrials.gov).

Aim. Current clinical recommendations are intended to supply gastroenterologists, physicians and general practitioners with modern methods for the diagnosis and treatment of constipation.Key points. Constipation is defined as primary (functional) and secondary form, the latter comprising a manifestation of another illness. The causes of constipation are diagnosed with colonoscopy, especially in patients aged over 50 having “anxiety symptoms” and hereditary colorectal oncological predisposition. Indications may also include the bowel transit time estimation with radiopaque markers, balloon expulsion test, anorectal manometry, defecography and electromyography. Therapy for constipation should be comprehensive and concern lifestyle, diet recommendations and use of medications (psyllium, macrogol, lactulose, lactitol, contact laxatives, prucalopride). Patients with a less effective conservative therapy and largely reduced quality of life should be considered for surgical intervention.Conclusion. An effective therapy for constipation requires a correct diagnosis of its causes.

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Reported here are two cases of a modified Appleby operation for borderline resectable ductal adenocarcinoma of the pancreatic body, in one of which a R0 distal resection was attended to by excision, not only of the celiac axis, but also of the common and left hepatic arteries in the presence of arterial anatomic variation Michels, type Ⅷb. The possibility and avenues of the maintenance of the blood supply to the left hepatic lobe after surgical aggression of this kind are demonstrated employing computed tomography (CT) and 3-D CT angiography. Furthermore, both cases highlight all important worrisome aspects of pancreatic cancer resectability prediction.

The study demonstrated superior clinical outcomes for endovascular flow diversion in comparison with bypass surgery in treatment of complex aneurysms. Though, both techniques grant similar percentage of major neurologic complications and comparable cure rate for cranial neuropathy. Nevertheless, flow diversion is associated with significantly lower early obliteration rate, thus possesses patient for risks of prolonged dual antiplatelet regimen and delayed rupture. Hence, it's important to stratify patient by the natural risk of aneurysm rupture prior to treatment selection.

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