West Africa is one of the poorest regions of the world. The sixteen nations listed by the United Nations in this sub-region have some of the lowest gross domestic products in the world. Health care infrastructure is deficient in most of these countries. Cardiac surgery, with its heavy financial outlay is unavailable in many West African countries. These facts notwithstanding, some West African countries have a proud history of open heart surgery not very well known even in African health care circles. Many African health care givers are under the erroneous impression that the cardiovascular surgical landscape of West Africa is blank. However, documented reports of open-heart surgery in Ghana dates as far back as 1964 when surface cooling was used by Ghanaian surgeons to close atrial septal defects. Ghana's National Cardiothoracic Center is still very active and is accredited by the West African College of Surgeons for the training of cardiothoracic surgeons. Reports from Nigeria indicate open-heart surgery taking place from 1974. Cote D'Ivoire had reported on its first 300 open-heart cases by 1983. Senegal reported open-heart surgery from 1995 and still runs an active center. Cameroon started out in 2009 with work done by an Italian group that ultimately aims to train indigenous surgeons to run the program. This review traces the development and current state of cardiothoracic surgery in West Africa with Ghana's National Cardiothoracic Center as the reference. It aims to dispel the notion that there are no major active cardiothoracic centers in the West African sub-region.

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SUMMARYImpalement injuries of the chest are uncommon in civilian practice with few reports in the literature. We report three cases of thoracic impalement seen over a 5 year period with unusual underlying mechanisms. In two of the cases, the impalement was obvious; in the third, the impalement was concealed having occurred 5 months earlier. In Case 1, the underlying mechanism was a high-speed road traffic accident. The patient was impaled by a metallic square pipe piled by the roadside. In Case 2, the gun-housing of a locally-made rifle gave way as it was fired and allowed a reverse ejection of the barrel during recoil that impaled the hunter's chest. In Case 3, a domestic assault with an old umbrella caused an impalement injury as one of the umbrella spokes broke off, penetrated and lodged in the left chest going unnoticed for 5 months. Persistent chest pain and haemoptysis led to a request for chest radiographic examination upon which the foreign body was discovered. Massive haemoptysis brought the patient to emergency thoracotomy. All three patients underwent thoracotomy with a successful outcome.Keywords: Impalement injuries, thoracic, mechanisms, debridement, management. CASE REPORTSCase 1 A 22 year-old lady was referred to the National Cardiothoracic Centre (NCTC) with an impalement injury of the left upper chest following a road-traffic accident that morning as a passenger. When the van in which she was travelling skidded off the road, she got impaled on a metallic pipe piled by the roadside. She had chest pain and dyspnoea on admission. Examination showed a metallic square pipe lodged in the left chest in through-and-through fashion antero-posteriorly (Figure 1). She was conscious, alert and haemodynamically stable with a blood pressure of 110/80mmHg and a pulse of 104/minute. Respiratory examination showed signs of a left haemopneumothorax and left lung collapse. Apart from a laceration of the right arm and forearm the rest of the physical examination was normal. A left chest tube was inserted and preparations were made for thoracotomy. Broad-spectrum antibiotic prophylaxis (1 gram ceftriazone and 500mg metronidazole) and tetanus immunoglobulin were administered prior to surgery. Figure 1 Case 1 with impaled metallic objectAt surgery, the foreign body was extracted carefully without sequelae. There was a laceration of the left upper lobe; no major vessel or cardiac injury was found. The injured part of the left lung was debrided and the resulting defect repaired. Debridement of the chest wall at the entry and exit wounds was carried out. The pleural cavity and chest wall wounds were copiously lavaged with saline, a chest tube was passed and the incisions closed primarily. The patient was returned to the Intensive Care Unit. She made an uneventful recovery and was discharged on the 14 th post-operative day.

The 54 countries in Africa have an estimated total annual congenital heart defect (CHD) birth prevalence of 300,486 cases. More than half (51.4%) of the continental birth prevalence occurs in only seven countries. Congenital heart disease remains primarily a pediatric health issue in Africa because of the deficient health-care systems: the adults with CHD made up just 10% of patients with CHD in Ghana, and 13.7% of patients with CHD presenting for surgery in Mozambique. With Africa's population projected to double in the next 35 years, the already deficient health systems for CHD care will suffer unbearable strain unless determined and courageous action is undertaken by the African leaders.

The study demonstrates the feasibility of surgery for adolescents and adults with congenitally malformed hearts in the sub-region with a good outcome. Majority (77.8%) of patients present with less complex lesions.