Predicting breakthrough of vanadium in fixed-bed absorbent columns with complex groundwater chemistries: A multi-component granular ferric hydroxide-vanadate-arsenate-phosphate-silicic acid system.

Granular ferric hydroxide (GFH) is often used for fixed bed adsorbent (FBA) columns in groundwater purification units around the world to remove arsenate contaminations. Groundwater can contain also other toxic (e.g.

[SURGICAL TREATMENT OF THE FACE CAPILLARY MALFORMATION].

Results of surgical treatment of 37 patients for the head and neck capillary malformations were analyzed. Optimal surgical tactics, depending on the malformation form and localization, was proposed. Restitution of the tissues defect after excision of malformation, using the flaps transposition, have permitted to achieve good esthetic results.

[Combined treatment of arteriovenous malformations of the head and neck].

An arteriovenous malformation (AVM) is a vascular developmental abnormality conditioned by impaired embryonic morphogenesis and characterized by the development of an abnormal connection between arteries and veins. More than 50% of the total number of patients suffering from this pathology are those having the pathological foci localizing in the area of the head and neck. At present, a combined method is both a generally accepted and the most radical one used for treatment for AVM.

[Results of surgical treatment of post-traumatic deformation of three-phalangeal fingers].

Results of surgical treatment of 168 patients with consequences o injury of long fingers were analyzed. After a trauma and emergency surgery in 139 patients had deformation of 200 fingers. Flexion contracture in proximal interphalangeal joint, bone deformation of phalanxes, and also insufficiency of a tendon sutures that resulted need of carrying out corrective operations on 126 (63%) fingers.

[First experience of supraclavicular flap application for the closure of defects localized in the lower third of the face and neck].

First experience of the supraclavicular flap transposition for closure of superficial, but extended, defects of the soft tissues in the lower third of face and neck region in 6 patients is presented. In all the patients good functional and cosmetic result was achieved.

[Surgical correction of tubular breast deformities].

The results of tubular chest surgical correction in 24 patients--women were analyzed. Differentiated approach to the operative treatment method choice was applied, depending on the chest volume and tubularity type. Positive aesthetic result was achieved.

[Possibilities of reconstructive plastic surgery in the treatment of vascular malformations of the head region].

Results of treatment of 19 patients, suffering vascular malformation of the head region, were analyzed. Application of a new highly informative diagnostic methods of surgical intervention differential methods have promoted significant clinical improvement.

[Surgical correction of cicatricial deformation of the extremity using the tissue expanding method].

Modern approaches to the treatment of cicatricial deformation of extremity are presented. The results of treatment of 20 patients using the tissue expanding method are adduced. During the expander implantation and dermotension in 20% of patients the complications had occurred.

[Surgical treatment of inveterate defects of the hand II-V fingers extensors tendons in VI-VII zone].

Possibilities and efficacy of secondarily restoration of inveterate defects of the extensors tendons of fingers, owing various extent, were studied in conditions of cicatricial changes in the hand back skin. There was established, that in ischemic and reperfusion damage of the hand tissues the coarse cicatricial changes in the end portions of the traumatized tendons occurs, essentially influencing surgical tactics. Optimal operative techniques, directed on the extensors tendons restoration in various extent of their defects and various severity of the soft tissues changes in the hand back were determined.

[Transplantation of the muscular perforant flaps for restoration of tissues defects in the extremities].

There was summarized the experience of surgical treatment of 9 patients with the soft tissues defects of various etiology, localization and size, in whom microsurgical autotransplantation of the perforant flaps was performed on thoracospinal and medial gastrocnemial arteries. Peculiarities of preparation and mobilization of perforating vessels, securing the motor nerves branches, were presented. The perforant flaps advantages are: their small thickness, plasticity, mobility and minimal complications in the donor's zone.