Opacity over the left hemithorax after abdominal aortic aneurysm repair

Abstract

A 77-yr-old male was admitted for aortic aneurysm repair. His history recorded hypertension, left carotid artery desobstruction, stroke and an anterior invocardial infarction. Aspirin was discontinued 1 day before surgery. For peri-and postoperative haemodynamic surveillance, a Swan-Ganz catheter (7.5 Fr thermodilution catheter; Criticath; Ohmeda, Bilthoven, the Netherlands) was introduced through the venae cubiti of the right arm 1 day before surgery. Initially the catheter was in overwedged position. After withdrawal of the catheter a correct wedge curve was obtained. As a result of congestive heart failure, there were elevated pulmonary artery and wedge pressures. For this reason, the patient was treated with diuretics and nitroglycerin intravenously.The abdominal aortic repair was uncomplicated, with a blood loss of 1,900 mL. After surgery the chest radiograph showed a diffuse opacity over the left hemithorax ( fig. 1).

Transannular Cyclization of Epoxycaryophyllenes Catalyzed by TiIII: An Efficient Synthesis of Tricyclo[6.3.0.02,5]undecanes

“…It is worth underlining that alcohols 8 and 9 had a mild aroma. Their acetylation with Ac 2 O and pyridine provided acetates 8a and 9a, while their oxidation with [10,12] Encouraged by the results obtained, we continued this study with the transannular cyclization of other epoxycaryophyllene derivatives (3-7) catalyzed by Ti III . The epoxidation of β-caryophyllene with m-CPBA in CH 2 Cl 2 led to a 4:1 mixture of epoxides 2 and 3.…”

“…All of these compounds also presented ambergris-like aromatic properties, similar to those of 9-acetyl-1,4,4,8-tetramethyltricyclo[6.3.0.0 2,5 ]undecanes, products that have been described as perfume bases for different cosmetic preparations. [10,12] Encouraged by the results obtained, we continued this study with the transannular cyclization of other epoxycaryophyllene derivatives (3-7) catalyzed by Ti III . The epoxidation of β-caryophyllene with m-CPBA in CH 2 Cl 2 led to a 4:1 mixture of epoxides 2 and 3.…”

“…[3] Its availability as a raw material and its unusual bicyclic structure have attracted the attention of organic chemists and have been the basis for the development of a wide range of cyclizations and rearrangements. [4,5] Some of these reactions have led to tricyclic derivatives of interest as fungistats [6] and as odorants in the perfume industry; [5,[7][8][9][10][11][12] βcaryophyllene itself and its various hydroxylated derivatives exhibit interesting olfactive properties. [7][8][9][10][11][12] To date, publications on radical cyclizations of caryophyllenes have been scarce.…”

“…[4,5] Some of these reactions have led to tricyclic derivatives of interest as fungistats [6] and as odorants in the perfume industry; [5,[7][8][9][10][11][12] βcaryophyllene itself and its various hydroxylated derivatives exhibit interesting olfactive properties. [7][8][9][10][11][12] To date, publications on radical cyclizations of caryophyllenes have been scarce. Some examples are the radical-induced addition of acetaldehyde to the caryophyllene skeleton, [9] irradiation in an anionic micellar medium of β-caryophyllene (1) in the presence of an electron acceptor, [13] and the reduction of β-caryophyllene (2 and 3) and isocaryophyllene (4 and 5) epoxides with lithium in liquid ammonia.…”