Browsing by Author "Thermann, F"
Now showing 1 - 3 of 3
Results Per Page
Sort Options
Publication Abnormal Venous Dilatation other than Typical Varicose Vein, Rare Encounters(Kathmandu University, 2018) Karmacharya, RM; Shrestha, B; Shrestha, BK; Devbhandari, M; Tuladhar, SM; Hodde, A; Thermann, FABSTRACT Varicose vein, one of the common vascular illnesses is usually a disease in lower limb. This is due to reflux of blood from deep venous system to superficial venous system. Rarely, this disease can also happen in veins in different location. Four such rare encounters are mentioned in this case series. KEY WORDS Superficial veins, Unconventional sites, Varicose veinPublication Crural Bypass Surgery in Case of Critical Ischemia: Technical Aspects and Results(Kathmandu University, 2018) Thermann, F; Karmacharya, RMABSTRACT Background Crural bypass surgery is one of the last options to salvage the leg. Compared to arterial reconstructions of more proximal localization patency rates are generally less good. The aim of this retrospective study was to answer the question if crural bypass surgery is justified. For that we focused on different technicalities, bypass material, recipient vessel and anticoagulation regimes. Objective To know outcome of crural bypass in terms of patency rates, survival rates, amputation. The difference in outcome is compared in different stages of peripheral arterial disease and various bypass materials and sites. Method Between 07/2013 and 06/2018 we performed 102 crural bypasses (27 female, 75 male; age 44-90 (70) years). Reasons for the bypasses were a critical peripheral arterial diseases (PAD) (stage III [pain at rest] and IV [necrosis/gangrene] according to Fontaine). End point of the study was major amputation or death. All patients were operated on in the same department by two experienced vascular surgeons. Result Amputation-free time was 78% after sixmonths and 70% after 24 and 60 months. Six, 12 and 40 months survival was 83%, 78% and 59%, respectively. Patency rates were affected by the severity of the disease (stage III vs. stage IV) and so was major amputation. Autologous bypasses were not associated with a better patency rate. Minor amputation or the anticoagulation scheme did not influence the long term results. Conclusion The long term survival after crural bypass is good and amputation rates are low, independent of the vessel of the lower leg used as recipient outflow. Accordingly, if a bypass is technically feasible, there is no limitation regarding the choice of the recipient vessel. If possible, autologous vein should be used, but a graft prosthesis can lead to equally good results. As patients with stage III PAD have better outcomes, early intervention is recommended in order to avoid deterioration to stage IV. KEY WORDS Anticoagulation, Crural bypass, Limb salvage, Recipient vesselPublication Initial Experience of Complex Peripheral Bypass Surgery at Dhulikhel Hospital, Kathmandu University Hospital(Kathmandu University, 2017) Karmacharya, RM; Shrestha, B; Devbhandari, M; Tuladhar, SM; Hodde, A; Thermann, FABSTRACT Peripheral arterial disease is seemingly silent yet is a major pubic health problem with limb threatening and life threatening consequences. This condition can initially be asymptomatic and gradually may progress to intermittent claudication and finally to critical ischemia. When conservative management is not sufficient and there is option of surgical management, peripheral bypass surgery is an established modality of treatment of peripheral arterial disease. We present our initial cases of peripheral arterial bypass surgery all of which are technically demanding surgeries. All the cases have resulted into limb salvage until current follow-up. KEY WORDS Claudication, critical ischemia, peripheral arterial bypass, peripheral arterial disease