Delayed diagnosis and subsequently increased severity of acute appendicitis (compatible with clinical-pathologic grounds) during the COVID-19 pandemic: an observational case-control study.

Background: During a global crisis like the current COVID-19 pandemic, delayed admission to hospital in cases of emergent medical illness may lead to serious adverse consequences. We aimed to determine whether such delayed admission affected the severity of an inflammatory process regarding acute appendicitis, and its convalescence.

Methods: In a retrospective observational cohort case-control study, we analyzed the medical data of 60 patients who were emergently and consecutively admitted to our hospital due to acute appendicitis as established by clinical presentation and imaging modalities, during the period of the COVID-19 pandemic (our study group).

The volume of general surgery emergency cases in a government hospital during the COVID-19 pandemic and two other periods: a comparative, retrospective study.

Background: During March and April 2020, reductions in non-COVID-19 hospital admissions were observed around the world. Elective surgeries, visits with general practitioners, and diagnoses of medical emergencies were consequently delayed.

Objective: To compare the characteristics of patients admitted to a northern Israeli hospital with common surgical complaints during three periods: the lockdown due to the COVID-19 outbreak, the Second Lebanon War in 2006, and a regular period.

Emergency open surgery with a duodenotomy and successful removal of an impacted basket following a complicated endoscopic retrograde cholangiopancreatography procedure: a case report.

Background: Current management of choledocholithiasis entails the use of endoscopic retrograde cholangiopancreatography (ERCP) and clearance of the common bile duct. A rare complication of this procedure is the impaction of the basket by a large stone, which necessitates lithotripsy. Here we report a case of an impacted basket during ERCP, which was managed by open surgery with a duodenotomy and the manual removal of the basket.

Microsurgery for management of primary and secondary lymphedema.

Objective: The objective of this study was to evaluate the efficacy and safety of lymphaticovenular anastomosis (LVA) in patients with lymphedema.

Methods: A retrospective analysis was conducted of 70 patients suffering from primary or secondary lymphedema who underwent LVA surgery with indocyanine green fluorescence lymphangiography. Postoperative evaluation included qualitative and quantitative volumetric assessment and analysis.

A unusual case of multifocal pyogenic abscess formation following ERCP procedure.

Background: Endoscopic retrograde cholangiopancreatography (ERCP) is essential for managing biliary and pancreatic disorders. Infection is the most morbid complication of ERCP and among the most common causes of ERCP-related death.

Case Presentation: A 69-year-old man presented with right upper quadrant abdominal pain, obstructive jaundice and abnormal liver function tests.

Chylous ascites as a late complication of one anastomosis gastric bypass-minigastric bypass: case report.

Background: One anastomosis gastric bypass- minigastric bypass (OAGB-MGB) is an emerging bariatric surgery that is being endorsed by surgeons worldwide. Internal herniation is a rare and dreaded complication after malabsorptive bariatric procedures, which necessitates early diagnosis and intervention.

Case Presentation: We describe a 29-year-old male with chylous ascites caused by an internal hernia 8 months following laparoscopic one anastomosis gastric bypass.

Robotic inguinal hernia repair: Is it a new era in the management of inguinal hernia?

Objective: We compared outcomes of elective inguinal hernia repair performed at one institution by three approaches: robotic-assistance, laparoscopic, and open.

Methods: Characteristics of the patients, the hernia and the procedures performed during 2014-2016 were accessed from patient electronic medical files of 137 elective inguinal hernia repairs. 24 surgeries were robotic-assisted, 16 laparoscopic and 97 open repairs.

Balloon catheter as a model of cerebral emboli in humans.

A striking similarity has been found between the distribution of occlusions in various cerebral arteries and the statistical regularity of the pathways of balloon drifting freely in the blood stream. Based on the assumption that the course of a balloon is determined by the same hydrodynamic laws as that of an embolus of similar size, it is concluded that the majority of occlusions of the cerebral arteries are of embolic origin. Emboli, then, might also be an explanation for most of the TIAs.

Stenoses of the distal segments of the internal carotid artery.

In 31 of 51 patients with stenosis of the distal segments of the internal carotid artery, the first symptom was a transient ischemic attack. In spite of the high incidence of angiographically proved emboli, 46 patients remained in good neurological condition. Aspirin was given to all patients.

Elastic elements in the media and adventitia of human intracranial extracerebral arteries.

We find that the media and adventitia of adult human cerebral arteries contain elastic fibers forming a dense, coherent network, similar to that found in muscular arteries of the same size in other organs. The external elastic layer in the adult human is masked for the currently employed staining methods. By treatment with 90% formic acid before fixation, the original staining character of elastic tissue can be restored.

Role of the structural elements of the arterial wall in the formation and growth of intracranial saccular aneurysms.

Besides apical medial gaps, lateral and circular medial gaps can be found occasionally at the branching sites of human intracranial arteries, supporting Forbus's idea (1930) of their mechanism of formation and contradicting those put forward by later workers. The large medial gaps situated just distal to the branching sites, considered by Stehbens (1963) to be degenerative in origin, may result from enlargement of congenital multiple apical gaps. Degeneration of the internal elastic layer in the area of medial gaps consists in enlargement and partial fusion of its "physiologic" windows.

Fluorescein angiography in the surgical treatment of cerebral ischemic lesions.

The present paper summarizes our experiences with intraoperative fluorescein angiography in 50 external carotid artery-internal carotid artery bypass operations. This technique has provided precise localization of the ischemic lesion and aided in selecting the sites and direction of the anastomoses to be performed, as well as in checking the patency of the anastomoses and the area supplied by them. A comparison of X-ray angiography with fluorescein angiography indicates the reliability of the latter in the estimation of the area supplied by the anastomosis.