East and Central African Journal of Surgery, Vol. 7, No. 1, August, 2002 pp. 7-22
Abstracts of papers presented at the annual scientific conference of the Association of Surgeons of East Africa held in Lusaka, Zambia on 5th to 7th December 2001.
Code Number: js02002
Should all hernias undergo elective surgery?
Stefan Post,Professor and Chairman of Surgery, University Hospital Mannheim, University of Heidelberg, Germany.
It is generally accepted in the international surgical community that all inguinal hernias should be operated electively unless the patient is extremely old or frail. However, the main argument rests on the risk of strangulation despite the fact that little is known about the actual risk in a particular patient.
This study presents a risk calculation based on a few historical reports dealing with the risk of incarceration and on contemporary epidemiological data from Germany. Three strategies are presented: prophylactic indication on principle (A), elective operation in every second case (B) and operation in case of strangulation only (C). It is calculated that for the male German population aged 65 years and above 69954 (A), 36292 (B) and 2630 (C) inguinal hernia repairs would be necessary annually; 167 (A), 145 (B) and 123 (C) perioperative death would occur associated with 1702 (A), 1373 (B) and 1048 (C) years of life lost respectively. Thus operation of every inguinal hernia would even result in a (small and negligible) reduction of life expectancy. These data provide evidence that that in elderly patients, the indication to operate inguinal hernias should depend upon symptoms and suffering. In Europe there is no reason to operate asymptomatic cases because of a presumed risk of strangulation. These figures change dramatically in an environment like rural Africa where the mortality of a strangulated hernia is much higher thus increasing the need for prophylactic surgery.
Conclusion: Contrary to current practice health policy should encourage less hernia repair in industrialized countries and probably more hernia repairs in rural Africa.
Short-stay thyroidectomy: Trends in length of post-operative hospitalisation over a period often years in a developing country central Hospital.
K L Erzingatsian, Professor of Surgery, UTH. P0 Box 50110, Lusaka, Zambia.
Short-stay surgery is an established form of patient management in the developed countries. There is little published on the subject from the developing world. This paper describes the personal experience of short-stay thyroidectomy over a period of 10 years. It is a retrospective study on the work carried out in the Department of Surgery, University Teaching Hospital, Lusaka. Seventy-nine consecutive thyroidectomy patients were included in the study. There were 65 female and 14 male patients with an average of 38n years. General anaesthesia was used in 60 patients and 19 had local anaesthesia. Type of operation included subtotal (32), lobectomy (28), total (5), near total (3) and various other operations (11). Malignancy was diagnosed in nine patients. Minor post-operative complications occurred inl 6 patients and airway related difficulties were noted in eleven, seven of who ha, temporary voice change. There were four tracheostomies performed, two permanent ones before thyroidectomy and two temporary ones post-operatively. There was no record of iatrogenic permanent recurrent nerve palsy. Four patients had thyrotoxicosis one of which developed a thyroid crisis. Another patient developed hypocalcaemic crisis. There was no post-operative mortality. Seventy-seven patients were followed-up and there were three readmissions, two with terminal cancer and one with hypocalcaemic crisis. The length of stay varied between 4.1 days early in the series to 1.3 days in 1999. Short-stay throidectomy offers advantages and is safe where expertise is available. Early review following hospital discharge is recommended.
FNAC of breast lumps in the University Teaching Hospital, Lusaka, Zambia.
Kasonde Bowa, Department of Surgery, University Teaching Hospital, Lusaka.
This was a prospective study done to assess fine needle aspiration cytology (FNAC). As a diagnostic tool in the investigation of breast lumps in the University Teaching Hospital. Though this method is inexpensive and has been shown to be highly accurate, it is not in common use.
Seventy-three female patients from surgical outpatients clinic were included in the study. Their average age was 25 years. Most of the lumps were clinically benign (71%). All the patients consented to FNAC but only 49% went on to have histopathological diagnosis. Of all these, 31% were malignant while 69% were benign. The average age of patients with malignant lumps was 30 years while that of benign was 24 years. Patients above 25 years had a higher likelihood of malignancy than those below 25. In this study, it was found that FNAC had a sensitivity of 73% and a specificity of 96%. This level of accuracy compares favourably with that reported in centres in the United Kingdom and meets the quality assurance requirements recommended for the United Kingdom. FNAC was found to be a safe and accurate method of screening and investigating breast lumps in the University Teaching Hospital. Guidelines for its use in the Hospital are given
Mandibulectomy: Technical consideration in 50 mandibulectomies. A personal series.
K L Erzingatsian, Professor of Surgery, University Teaching Hospital, Lusaka, Zambia.
This paper describes the technique of mandibulectomy as used by the author in a series of fifty patients with large mandibular tumours. The operations were performed in the Department of Surgery of the University Teaching Hospital between 1987 and 2000.
The operative management is given in detail including anaesthetic considerations, oropharyngeal packing, positioning, the type of incision used, resection of the mandible, vascular control, the technique of reconstruction used by the author and the type of wound closure. General anaesthesia was administered for mandibulectomy and local anaesthesia for tracheostomies. Elective tracheostomy was performed in 22 patients as first step, followed by the mandibulectomy. The oropharynx was packed with iodinated cotton gauze as a routine. Patients were restrained on the operating table with a belt to maintain a reverse Trendelenburg position. The operative approach was lip splitting in 34 and submandibular alone in 16. mandibular resection for lateral body tumours started with division of bone at the ipsilateral parasymphysis. Resection required control of the inferior dental vessels either within the mandibular canal or above the foramen. Troublesome bleeding from pterygoid plexus of veins sometimes created difficulties. Carotid vessels control and/or ligation of the external carotid were rarely required and were done in 10% of patients during the first few years of the series. Twenty-three patients underwent hemimandibulectomy, 14 segmental and 13 had various other operations. Half the patients were reconstructed with wire implant. The implant was buried deep to the pharyngeal dilators by using 4/0 nylon in three layers. The mucosa and the muscle layers were closed separately. The mucosa was closed with catgut 2/0 or 3/0 everting stitches and the muscle layer with a running suture. Skin was closed with vertical mattress continuous suture preferably using absorbable monofilament. Drains were not routinely used. The commonest tumour excised was amelablastoma in 22 patients. The most common complication was sepsis in 21 patients. Three implants removed for exposure, fracture and migration.
Genetic epidemiological aspects of gastric cancer in Iceland.
A Klmsiand, BJ Eldon, S Aribjamarson et al, Iceland
To describe genetic epidemiological aspects of gastric cancer in Iceland.
Background: associations between gastric cancer and environmental factors e.g. diet and infections have been established and somatic genetic changes are well described in adenocarcinomas of the stomach. Less is known regarding clinical features of hereditary gastric cancer and whether other malignancies are associated with family clustering.
Family trees of all patients diagnosed with gastric cancer in Iceland between 1955 and 1999 were identified in the Genealogical Database of the University of Iceland. Probands with age of onset <60 years were used in the study. Families of all probands (N = 455 males and 161 females) all reported cancers were identified. The expected number of cases was calculated using the age specific population rates in Iceland.
A relative risk (RR) of 2.2 (95% Cl =1.6-3.0) and 1.3 (95% Cl = 1.0 - 1.7) for the gastric cancer risk was observed was observed among 2846 first and 8658 second degree relatives of male probands respectively. For female probands the corresponding RR was 1.6 (95% Cl = 1.1 -2.6) and 1.4 (95% Cl = 0.9-2.0) and statistical significant for the first-degree relatives (N = 2764). The excess risk was even more pronounced for relatives of males and females diagnosed with gastric cancer before the age of 50 years. No difference in RR was found between relatives of probands that were diagnosed as Lauren I (intestinal) or Jervi-Lauren 2 (diffuse). Special attention was also given to other common cancers such as prostate, breast, kidney and brain cancers among the relatives although no significant risk elevations were found. Fifty-eighth families with at least two or more relatives with cancer were identified. In 32 families two relatives with gastric cancer were identified and in and in 26 families three or more relatives had gastric cancer.
Relatives of gastric cancer patients have 2 - 3 fold increased risk of developing cancer. The risk is elevated for both sexes although more for males.
Limb Saving Surgery in Osteosarcoma
J A Mulimba. Consultant Orthopaedic and Trauma Surgeon, Nairobi, Kenya.
Osteosarcoma is common in Kenya. The age groups affected are mostly children and adolescents. Since 1972 the age has been noticed to rise to include 3rd and 4th decades. The time of presentation has continued to be late. Investigations available will determine the ability of early diagnosis or otherwise. We are now able to do, in addition to plain X-rays, C.T. scans, NM scans and radio isotopic scans. Immunological studies such as HEGFR2 are still not available. Treatment has continued to be biopsy, amputation and adjuvant chemotherapy of various combinations having high dose methotraxate as a major component. In Kenya patients and parents are becoming increasingly reluctant to accept amputation. In developed countries 90% of all cases are treated with limb sparing surgery.
Is this practical in developing countries?
Presented here are a number of osteosarcoma cases I treated and one case in which limb sparing operation was done and the problems that were encountered.
"Damage Control and 'Second Look' in Emergency Abdominal Surgery"
I.J.P. Loefler, Nairobi Hospital, Kenya.
The major causes of mortality after emergency abdominal surgery - whether this is necessitated by trauma or by some other instance of "Acute abdomen" - are hypothermia, acidosis, coagulapathy and abdominal compartment syndrome. In order to avoid these complications, emergency operations in physiologically compromised patients should consist of "damage control" only: haemostasis, reestablishment of blood flow in large vessels, peritoneal lavage and avoidance of further soiling. Anastomoses should be eschewed at this stage and temporary stomata should be fashioned. The abdomen is best left open, this saves time, prevents wound infection, and forestalls abdominal compartment syndrome. (intraabdominal pressures can be measured by using the indwelling bladder catheter as a measuring device).
There are various ways in which the temporary closure of the abdomen can be achieved, one is the use of the "Bogota Bag". The correction of organ dysfunction, under optimal circumstances in the ICU, includes rewarming, ventilation, normalization of the acid/base balance etc. Improvement is usually rapid and the "Second look" operation can be undertaken after 48 to 72 hours. At this stage reconstruction of the abdominal contents as well as the abdominal wall may be possible.
The preoccupation of surgeons with anatomy has caused much morbidity and mortality. By shifting the focus to physiology, many complications can be avoided, others are easier to treat. The principles of damage control are simple.
There is no reason to fear an open abdomen (or, indeed, the reopening of an abdomen in the ICU, if the intraabdominal pressure rises). A "Bogota Bag" is a cheap, ubiquitously available device, easily applied. Evidence for its usefulness is overwhelming and the reluctance to use it is merely emotional.
Primary Squamous Cell carcinoma Presenting As Psoas abscess
K.L. Erzingatsian, R. Zulu, R. Chavuma, M. Labib. Department of Surgery, UTH, P.O. Box 50110, Lusaka, ZAMBIA.
Squamous cell carcinoma is a common malignancy affecting all tissues, which arise from ectoderm. Untreated, metastases occur to regional lymphatics. Occasionally metaplasua occurs in non-ectodermal tissues such as the urinary bladder, lung and elsewhere, resulting in transformation to squamous cell carcinoma. However, primary squamous carcinoma arising de novo in psoas muscle and presenting as an abscess must be an extremely rare occurrence that merits reporting.
This is a case report of a 42-year old female patient who presented to University Teaching Hospital in May 2000 with a complaint of right loin pain and "appendicitis". The chronology of the disease progress, investigations carried out on the patient and the operative management is detailed in this report. The patient survived six months.
Ipsi lateral vascularised fibular transfer for reconstruction of osteomyelitic and traumatic tibial gap defects
S. Mannion, S. Chimangeni, C. Lavy, MAP Orthopaedic, Malawi Against Physical Disability, P.O. Box 30333, Lilongwe 3, Malawi
Gap defects in the tibia shaft can arise as a result of trauma or as a consequence of chronic osteomyeitis. A severe compound fracture may result in segmental diaphyseal loss with subsequent non-union and gap defect. In chronic osteomyelitis, although doctrine would advocate delaying sequestrectomy until sufficient mature involucrum capable of weight bearing has formed, occasionally auto-sequestrectomy will occur in advance of this; again leading to a tibial defect. Whilst bone transport techniques can be utilised to treat such defects, the skills and equipment necessary for such procedures are seldom available in the developing world. An alternative, and more freely available method of reconstruction is to use ipsilateral vascularised fibular transfer. Approach to the fibula is postero-lateral. Muscle attachments to the lateral and antero-medial surfaces of the bone are released but care is taken to maintain the posterior proximal vascular pedide, arising from the peroneal artery to keep the periosteum intact The fibula is then osteotomised proximally and distally and then transported, by translation and rotation into a pre-prepared graft bed spanning the tibial defect. Some form of fixation and stabilisation may then be required and cancellous bone graft applied. Over the past 12 months 6 cases of ipsilateral vascularised fibular transfer have been performed in Malawi. In 5 cases the defect was of osteomyelitic origin and the remaining case was traumatic. Mean age of the patients was 9 (range 3 - 22), 4 males and 2 females. In three cases stabilisation was effected by a trans-calcaneal, intramedullary K-wire. In the other three cases interfragmentary screws were used at the proximal and distal ends of the graft, supplemented by external fixation. Cancellous bone grafting was only performed in those cases also undergoing external fixation. In all cases the graft united satisfactorily at both the proximal and distal ends. No further procedures were necessary to effect this union. Particularly in the younger age group compensatory hypertrophy of the fibula, in response to the increased weight bearing demand, was both marked and rapid. 4 of the five cases that completed treatment needed no mobility aids when walking. The fifth case can weight bear but still requires crutches. A further procedure is contemplated on this patient; not to the graft site, but to correct a fixed ipsilateral equines deformity which developed secondary to the longstanding traumatic tibial defect. In conclusion we feel that the ipsilateral vascularised fibula graft is a useful method for treating tibial gaps defects both of osteomyelitic and traumatic origin. Few specialised resources are required and thus it is a suitable technique for the developing world.
False Aneurysms In Association with Aids
G. Desai, FRCS Ed. Consultant surgeon, WE Amadi, M.MED (Surg),Consultant surgeon Akhtaev, M.D., Consultant Surgeon, UTH
Two patients with three false aneurysms (one carotid and two femoral) associated with HIV infection are presented. Both patients made good recovery post-operatively. A few African reports suggested the affection of young population without arteriosclerosis, rapid development of focal vasculitis, leading to rupture or slow progression to granulomatous vasculitis. Aetiologically, these aneurysms may result from inflammation of the vasa vasorum or periadventitial vessels. These aneurysms should not necessarily prelude the patients from surgery. These patients are young, without arteriosclerosis, collateral and cross-circulation is adequate to sustain perfusion after division and ligation of major vessels.
Audit of the conservative treatment of an adult diaphyseal femoral fractures in Lilongwe Central Hospital.
C. Kafodya, S. Mannion, Lilongwe Central Hospital, Lilongwe, MALAWI.
Adult femoral fractures are a common presentation to Malawian hospitals and are often associated with severe trauma. Several alternatives exist for the definitive treatment of these injuries: traction, plating, external fixation and intramedullary nailing. Due to severe shortage of both orthopaedic operating theatre time and skilled staff, combined with a massive demand on these services, acute femoral fractures in Lilongwe have traditionally been treated conservatively on skeletal traction. In order to assess the success of this protocol from October 2000 all patients presenting with such injuries were prospectively followed up.
On admission all patients were given opiate analgesia and placed in a temporary traction splint device. Conversion to skeletal traction, by insertion of a Steinman's pin, usually under local anaesthesia or ketarnine, was done at the first opportunity. Perkin's traction was utilised, with up to lO% of body weight being applied until the fractured limb was out to length. From 4 weeks onwards, the fracture site was assessed
weekly for evidence of clinical union. When the fracture was thought to be clinically united, check X-rays were done to assess the extent of callus formation. If satisfactory on X-rays, traction was removed but S-pin left in situ for a further week whilst the patient exercised in bed. At the end of one week, the pin was removed and the patient mobilised partial weight bearing on crutches. After discharge, outpatient follow-up was continued. A total of 39 femoral fractures presented during the study period; 35 males and 4 females. The mean age was 37 (range 14-85). Road traffic accidents accounted for 53% of cases and 25% resulted from falls. Four fractures were compound. By AO classification, 49% were A ("simple"), 38% B ("wedge") and 13% C ("complex"). Thus far 23 (58%) have completed treatment, with a mean time to union of 11 weeks. An average of 1.7 X-rays were taken per patient during treatment. At follow-up, 3 cases were noted to have shortening. There were no cases of non-union.
We feel that treatment of femoral fractures by conservative methods has a high union rate with minimum complications. Theatre time is spared and the use of expensive implants and materials is avoided. Potential metalwork infection is also avoided. Although in-patient stay was on average 11-weeks, this has minimal cost implications in Malawi. Clinical officers in district hospitals can readily assimilate the technique, thus obviating the need to refer closed femoral fractures to Central Hospitals for specialist care.
BODA BODA INJURIES AT MULAGO HOSPITAL IN KAMPALA, UGANDA.
A 3-Month Cross Sectional Retrospective Study For The Period July to September 2001.
E.K.Naddumba, Senior Consultant Orthopaedic Surgeon Mulago Hospital, P.O.Box 7051, Kampala, Uganda.
During the last 5 years, Ugandans have taken up seriously the practice of riding small motorcycles (SUZUKI and HONDAS) imported from Japan, which are popularly known as Boda Boda by the Ugandans. This name originated from the bicycle means of transport operating at the "Border" between Uganda and Kenya, which was introduced in the late 1970s and early 1980s by the Ugandans to ease the INTERBORDER Trade. These Boda Bodas, which are mainly operated by the youth, have been responsible for musculo-skeletal injuries with serious consequences. In some cases, the injuries have been fatal.
The purpose of this paper is to highlight the Musculo-Skeletal injuries that are directly or indirectly a result of Boda Boda traffic accidents, with a view of assisting the Policy Makers in their effort of controlling Road Traffic Accidents in Uganda. A Cross Sectional Retrospective Study was hence conducted at Mulago Hospital on the Surgical and orthopaedic Wards.
During the period under study, total of 182 Road Traffic injuries were admitted. 46 [25%] of these were as a result of Boda Bodas. The commonest injury was open tibial fracture [21%]. The majority of the victims [20%] had polytrauma.
The motorcyclists were mainly youth with an average of 24 years.
It is strongly recommended that strict legislation be put in place to curb the reckless Motor Cyclists as an effort top control these emerging traffic injuries.
Diagnostic criteria for AC-joint pathology
Nicolaas GJ Maritz, Hannes (PJ) Oosthuizen Dept. Of Orthopaedic Surgery, Pretoria Academic Hospital, Pretoria SOUTH AFRICA
The literature and standard textbooks is scanty on specific presentation and examination methods for acromio-clavicular joint pathology.
Purpose of study:To define and identify the most reliable tests.
Materials and Methods:Thirty patients with probable AC-joint pathology were identified and examined. Eight patients who did not have pain relief after local lignocaine infiltration were excluded. Twenty-two patients with 24 shoulders were examined.
Results: Pain localization: AC-joint (15), anterior (13), posterior (5), lateral (5). Pain radiation: Anterior (14), posterior (2), lateral (3), cervical (3). Pain increased: With weight bearing (18), elevation (5), ADL (6), night pain or lying on shoulder (11), reaching across body (3).On examination: Swelling (7), AC-joint prominence (7), local tenderness (21), crepitations (4), forced cross-body test (22), elevation further than 60o(22), Jobe test (20), speed test (19), O'Brien's test (15), compression test (12), distraction test (13), pain arc less than 160o (13), neck tenderness (13). Concomitant diagnoses: Shoulder arthritis (2), impingement (6), cuff tears (2), biceps tendonitis (2), cervical pathology (2). Radiological changes: AC-joints (19), shoulder joints (13), cervical views (11). Ultrasound pathology: present in 10 of 15 cases.
Conclusion: Most common symptoms: Pain with weight bearing, elevation and lying on shoulder.
Pain localization: Anterior and posterior.
Most common clinical findings: Forced cross-body test, elevation more than 160o, local tenderness, Jobe's and Speed's tests. No test is 100% accurate. The whole clinical presentation must be taken into account.
Local infiltration of the Ac-joint is extremely helpful.
Perioperative Normovolaemic Haemodilution in Major Elective Orthopaedic Surgery In Lusaka
Lishman L Kosipre, John E.Jellis, School of Medicine, University of Zambia, Lusaka, Zambia
Operative Normovolaemic haemodilution technique was used on twenty-three patients who had major elective Orthopaedic Surgery both at the University Teaching Hospital, Lusaka and the Zambian-Italian Orthopaedic Hospital, Lusaka between July 1997, and June 1999.
There were twelve males and eleven females with ages ranging from 13 to 78 years (mean 42.1 years). The Preoperative haemoglobin of these patients ranged from 9.2g/dl to 16.8g/dl (mean 12.9g/dl). The postoperative haemoglobin measured at 72 hours ranged from 7.0g/dl to 13.lg/dl (mean 10.6g/dl). The drop in haemoglobin at 72 hours postoperatively ranged from 0.3g/dl to 5.8g/dl (mean 3.7g/dl).
Hip surgery was the commonest operation performed. There was one death (4.4% mortality); all the other patients had uneventful recovery. None of the patients had homologous blood transfusion and no operation was cancelled due to failure of the technique.
(This paper was presented at The Surgical Society of Zambia Scientific Conference in October 1999, Lusaka.)
Additional cases have been performed which were added to the new Presentation for ASEA Meeting in December 2001.
New Approach To The Classification Of Head Injury
S. Zohrabian, A. Zohrabian, R. Gaboyan Medical centre For Emergencies, Armen Tigranian Str. 54, Yerevan 375037, Armenia.
Due to the latest achievements in the field of neurology and neurosurgery and particularly in pathophysiology of the Nervous system, the development of a new classification of the Head Injuries (HI) has become somewhat a necessity. Based on our Clinical observation and also on the data from a large number of neurosurgeons we are suggesting the following classification of HI. We distinguish two major types of HI: closed and open, depending on the presence or absence of the wounds on the head (see fig.) In the group of closed HI we have included the three main forms: concussion of the brain contusion and compression, recognising three degrees of contusion - light, moderate and severe. In the group of HI there are four sub-groups:
In addition to the above forms, the latest data on the pathogenesis of HI has convinced us in the necessity of outlining the four major pathophysiological syndromes, which may accompany the above clinical forms:
The article provides a detailed analysis of the principle behind this division and the characteristics of these syndromes.
The Separation Of Zambian Craniopagus Twins
Prof M.S. Mokgokong,BSc, MBChB, MMed (Neurosurgery), FCS (SA) Head: Department of Neurosurgery, Medical University of Southern Africa
It is well known that Siamese twins can be joined at various parts of the body, for instance, the thorax, the back, the abdomen, as well as the hips. When they are joined at the head, it is called craniopagus twins. This is least common of all the sites of union. In fact, the quoted incidence in literature is one out of every 2.5 million births worldwide. It is a rare occurrence and hence experience to deal with the problem surgically is also rare.
CASE REPORT OF RECENT CRANIO PAGUS SEPARATION IN SOUTHH AFRICA
In 1998, the author was part of a team headed by the late Professor R Lipschitz of the Baragwanath hospital, University of Witwatersrand. This team separated a set of craniopagus twins that were presented to them. A complete separation was achieved. Both twins survived, although one died several months later. However, the surviving twin has significant higher mental function impairments. In 1994, the author was Acting Head of Neurosurgery at the Medical University of Southern University Ga-Rankuwa Hospital. We were also presented with another set of craniopagus twins to separate. It made sense to bring together the team that was involved not only in the South African experience, but also to incorporate Professor Benjamin Carson. This was done and the entire team came together. A complete separation was achieved. However, one twin died on the operating table, it was discovered that there was a phenomenon of interdependence between the two twins. This phenomenon had not been previously described and in fact changed the course of future preparations for such operations. In 1996, a set of craniopagus twins was brought in from Zambia to our institution, the Medical University of Southern Africa, for the purpose of separation. Once more, the entire neurosurgical team was brought together, viz. the Medunsa neurosurgeons, the Baragwanath neurosurgeons, as well as professor Benjamin Carson from Baltimore, USA. In addition, the surgical team was complimented by Zambian specialists who were part of the project. This time round, with the lessons learnt before, thorough operations were done. The anaesthetic was the same as the one that did the previous separation, as was the theatre set-up and staff. It came as no surprise therefore that this was the most successful separation of craniopagus twins in comparison with the previous separations that were done in South Africa and in America by the members of the same team.
Conclusions: The past 15 years has seen a team of medical experts in South Africa and Zambia gain valuable experience in the separation of craniopagus twins. This team was headed by the author and included Professor Benjamin Carson from John Hopkins hospital in Baltimore, USA. It is the intention of this paper to share the experience of this team with the rest of the world, and it makes very good sense that this presentation will take place in Zambia, the home of the most successful craniopagus twins separated to this date. The author aims to highlight the following recommendations from the valuable experience learnt:
a) Pre-operative evaluations and investigations.
b) The timing of the operation.
c) The execution of the separation itself
d) Subsequent management, inclusive of operations done on the separated twins themselves.
CT DIAGNOSIS OF CEREBRAL STROKES COMPLICATED BY HEAD INJURY
Dr Arshak Zohrabian, Head of Radiology Department, "Erebuny" Medical Centre, Yerevan 375037, Sayat Nova 37, App.38, Armenia. Email: firstname.lastname@example.org
The combination of disorders of cerebral circulation (DCC) complicated by head injury (HI) following a fall due to loss of consciousness is quiet common. We had 415 patients with DCC under observation. In 75 patients (17%) DCC were in the form of Cerebral Stroke (CS) and were combined with HI. Out of 71 cases with CS, 58 patients (82%) suffered from haemorrhagic stroke (HS) and 13 patients (18%) had ischaemic stroke (IS). Our investigations have revealed a certain CT criteria enabling us to differentiate the lesions produced by stroke from the ones produced by trauma. Haemorrhagic lesions due to CS were mainly round or oval in shape, had a high-density homogenous structure and were usually found in areas of cerebral hemispheres supplied by the major cerebral vessles. Haemorrhagic lesions resulting from a HI were mainly localised in the cortico-subcortical zones, irregular in shape and heterogeneous in structure in structure (i.e. partially hypo- or hyperdence). Intracranial, epidural or subdural haematomas resulting from HI have a homogenous structure and they can easily be distinguished from DCC based on their shape and localisation. Analysis of the results has allowed us to make the following conclusion. Cerebral strokes complicated by HI cause more severe deterioration of the general condition of the patient often with disturbances of the vital functions. CT investigation enables us to make an early detection of the traumatic area in the brain and evaluate properly the disorders caused by the HI with due consideration of the main focus of acute DCC.
ORTHOPAEDICS WITH LIMITED RESOURCES: A Mozambican Experience
Jose Langa, Maputo, Mozambique. E-mail: email@example.com
The Orthopaedic National Programme aim is to co-ordinate the provision of efficient orthopaedic and trauma services from central and provincial to rural hospitals. The country is divided into southern, central and northern regions, each with a Central Hospital with orthopaedic surgeons.
The 1500-bed Central Hospital in Maputo is the national referral centre and the teaching hospital for Eduardo Mondlane University. The Orthopaedic department has 200 beds and 12 orthopaedic surgeons. In each provincial hospital an orthopaedic surgeon provides specialist care and supports and supervises the surgical paramedical staff (surgical technicians) at district and rural hospitals.
The referring hospitals have been equipped to provide conservative treatment. The types of fractures that should be treated surgically have been clearly defined. In some rural hospitals with surgical facilities, there are well-trained surgical paramedics, but where possible patients are treated conservatively. We guarantee the supply of equipment and material and provide regular refresher training.
In Mozambique fractures constitute more than 70% of the orthopaedic pathology. In adults the most common are fractures of the femur, tibia and fibula, radius and ulna, pelvis, humerus and ankle.
In children under 16 years, 60% of hospital admissions are for trauma, usually sustained in falls from trees or motor vehicles accidents. Infections account for 30% of admissions. In contrast with developed countries, we have few patients with fractures due to osteoporosis.
Lignocaine 0.1% with adrenaline 1:1000000 in general surgery. Further experience in 328 patients.
K.L. Yerzingatsian, Department of Surgery University Teaching Hospital, P.O. BOX 50110, LUSAKA, ZAMBIA
There is little published in the English language surgical literature on the use of very dilute solutions of lignocaine and adrenaline in general surgery. The author has used 0.1 per cent lignocaine with 1:1000 000 adrenaline in 328 patients following premedication with pethidine, chlorpromazine and diazepam.
The responseto surgery was evaluated using six categories. Ninety three percent of patients were categorised in the top three categories of perfect, excellent and very good. Good and fair categories were seen in seven patients. The poor category, which meant conversion to endotracheal general anaesthesia, was not recorded.
The discussion section deals with the method of preparing the solution, technical considerations, relative contraindications, complications in 2 common operations, drawbacks of the technique and its advantages.
The solution is effective, inexpensive and safe.
POSSIBLE ROLE OF SPECIALIST IN RURAL ZAMBIA:
Two Years of RlySpec Visits and Telemedicine
We reviewed 2 years of FlySpec visits to Zambian Rural Hospitals by orthopaedic and Plastic Surgeons together with our experience of telemedicine and Specialist support to District Hospitals through E-mail and computer network. District and Mission hospitals do not have specialists. They have medical officers that very often need specialist opinions. Provincial hospitals (Secondary Referral centres) have specialists in very few disciplines. They depend on referral of patients to a Tertiary Referral Centre (U.T.H. in Lusaka) for consultation and treatment.
In the past three years, we have tried to answer consultations of the doctors working at district levels over the Internet by conducting requests for consultations to respective specialists and then sending answers back to them. Over 421 requests so far.
The FlySpec project has flown Orthopaedic Surgeon to the districts for 20years, and, for the past 8 years has involved a plastic surgeon.
We present our experience of the past 2 years. In that time we have seen almost 2000 patients and performed over 500 operations. In addition we have taught the resident District Medical Officers and helped in referring difficult patients to Lusaka. We also present the shortcomings of these visits and the obstacles and problems related to Specialist visits to the District levels.
ORAL KETAMINE: A Four-Year Experience in a Developing World Tumour Clinic
Doreen Ngonga, Ennie Tembo, Mutale Nsakashalo, Glenda Kalunga, Nkandu Simom Mfula, Kazadi Kabongo, K.L. Erzingatsian, Tumour Clinic, Department of Surgery, University Teaching Hospital, LUSAKA, ZAMBIA
Pain management is an important component in cancer patients. The administration of painful injections to the children in an oncology clinic can create difficulties. The study was under taken to determine the role of oral ketamine to modify the response to pain.
Between 1996 and 1999, 6324 patients attended a Tumour Clinic in a developing country teaching hospital. Fourty-eight children required cytotoxic injections on 103 occasions. These children were subdisided into 3 groups according to the year of attendance: 1996, 1997 and 1998/9. Each group was premedicated differently. The first group received ketamine 4.5mg/kg, the second group received ketamine 6mg/kg and the last group in 1998/1999 received ketamine 6mg/kg with diazepam 0.1mg/kg.
The response to pain in each group was evaluated by using an observer based scoring system. The visual analogue scale was not used.
The study has shown that oral ketamine is an effective and safe drug for use in a clinic setting. However, its action was not always predictable due to a number of confounding factors. A phenothiazine should be routinely used in these children to enhance the effectiveness of ketamine and to diminish the likelihood of its well-known side effects. Further studies using less costly lower doses of ketamine is recommended.
Results of a standardised approach for correction of hypospadias in young boys.
H.A. Heij, Professor of Paediatric Surgery, Paediatric Surgical Centre, University of Amsterdam and VU University Medical Centre, Amsterdam, The Netherlands
Introduction: The overall incidence of hypospadias is about 1: 125 males, most of which are distal (granular or coronary) types. More severe forms are hypothesized to be associated with decreased androgen sensitivity or exogenous oestrogen administration to the mothers. Operative correction is indicated in the distal types for psychological reasons. In more severe forms the proximal location of the meatus and the ventral curve interfere with normal micturition and sexual activities.
In Amsterdam, the Meatal Advancement and Glanuloplasty (MAGPY) procedure is applied for distal forms and the Island onlay procedure for proximal forms. The results of these operations were reviewed.
Patients and Methods: Between 1995 and 2000, 131 boys with hypospadias were operated. The mean age at operation was 23.6months. Half of them had distal hypospadias (glandular or coronary), the other half more severe forms: subcoronary, midshaft or penoscrotal. Significant curvature was present in these proximal types.
Operations done were: MAGPY in 42%, island onlay or tube in 41% and other various procedures in the rest. Technical details of the procedures will be presented. All procedures were performed by general paediatric surgeons or by trainees under their supervision.
Results: All operations were done under general anaesthesia. The MAGPY operations were usually performed as day cases.
Complications occurred in 30% of the patients: fistula formulation in 17%; infection in 3%, structure of the neo-meatus in 2%, urinary retention in 3% and redundant skin in 7%. Secondary operations were performed for these complications in most patients. The overall cosmetic and functional results were good in 69%, acceptable in 18%, poor in 2% and not known in 11%. There was a strong correlation between the type of hypospadias and the risk of complications and the final result
Conclusion: Correction of hypospadias with modern surgical techniques can be done at a young age with satisfactory results by general paediatric surgeons. In the majority, a good result is achieved in one procedure. The more proximal type of hypospadias carries a higher risk of complications.
Long-term follow-up is needed to assess the functional and cosmetic results in adolescence and adulthood.
Defining Core Anatomy for a Surgical Clerkship
Sekelani S. Banda, Department of Surgery and Department of Medical Education Development, UTH, Lusaka, Zambia
Introduction: The General Physicians Education Programme (GPEP) report in the USA and General Medical Council (GMC-UK) in its tomorrow's doctors have all recommended radical undoing of undergraduate curricula. Defining the core provides the challenge in the "core and options" strategy. In particular defining core anatomy for undergraduate medical education presents a unique challenge because of the variable end