Observation of the effect of gravity on the motion of antimatter.

Einstein's general theory of relativity from 1915 remains the most successful description of gravitation. From the 1919 solar eclipse to the observation of gravitational waves, the theory has passed many crucial experimental tests. However, the evolving concepts of dark matter and dark energy illustrate that there is much to be learned about the gravitating content of the universe.

A delayed complication of a port-a-cath insertion via subclavian venous access: Case report of a "pinch-off syndrome".

Introduction: Port-a-caths are long-stay central catheters often used for chemotherapy or parenteral nutrition. The implantation of a port-a cath, despite being involved in routine procedures, is also associated with immediate and delayed complications. Complications are rare but must be known and managed by operators.

Protocols of Anesthesia Management in Parturients with SARS-CoV-2 Infection.

Background: Our hospital became a referral center for COVID-19-positive obstetric patients from 1 May 2020. The aim of our study is to illustrate our management protocols for COVID-19-positive obstetric patients, to maintain safety standards for patients and healthcare workers.

Methods: Women who underwent vaginal or operative delivery and induced or spontaneous abortion with a SARS-CoV-2-positive nasopharyngeal swab using real-time PCR (RT-PCR) were included in the study.

Anesthetic management in a patient with Arnold-Chiari malformation type 1,5: A case report.

A 42-year-old male patient with Arnold-Chiari malformation type 1,5 (ACM-1,5) came to implant a hip prosthesis. He underwent a previous general anesthesia, with difficult airway management and complication in awakening. In this second surgery, an extradural approach was preferred to keep intracranial pressure and hemodynamics stable.

Excimer laser technology in percutaneous coronary interventions: Cardiovascular laser society's position paper.

Excimer Laser Coronary Atherectomy (ELCA) is a well-established therapy that emerged for the treatment of peripheral vascular atherosclerosis in the late 1980s, at a time when catheters and materials were rudimentary and associated with the most serious complications. Refinements in catheter technology and the introduction of improved laser techniques have led to their effective use for the treatment of a wide spectrum of complex coronary lesions, such as thrombotic lesions, severe calcific lesions, non-crossable or non-expandable lesions, chronic occlusions, and stent under-expansion. The gradual introduction of high-energy strategies combined with the contrast infusion technique has enabled us to treat an increasing number of complex cases with a low rate of periprocedural complications.