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Ординатура / Хирургия / Библиотека им академика М.И. Перельмана / Книга_3740_Библиотеки_им_академика_М_И_Перельмана

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limited by the sub-aortic bar beneath the non-coronary cusp. In an attempt to override this problem, Marion Ionescu, surgeon at Leeds Inrmary, developed the use of pericardium. Again, working with his wife, he made the rst pericardial valves. The orice area was consid­erably greater than with a porcine valve. The initial valves began to fail early as the suture lines had been placed outside the stent posts and were tearing with the exing of the valve. Once this problem had been resolved, the valve has gone on to be an established and excellent valve with excellent haemodynamics and durability. There have been many iterations of tissue valve tech­nology, but these two valve types remain dominant. The advice of Dr. Kirklin, “choose a valve that has been around for a long time and use it for a long time”, rings very true (Personal communication).
In the ensuing years, all aspects of valve and congenital surgery have developed apace, alongside the developments in cardio-pulmonary bypass, intensive care and rened diagnosis.
Perhaps later than might be expected, surgery for coronary artery disease developed in the mid-1960s led by Dr. René Favaloro at the Cleveland Clinic. In 1910, Alexis Carrel, Nobel Prize winner in Physiology or Medicine in 1912, had demonstrated that a vascular graft from the descending aorta to the left main coronary artery was feasible and that it could be useful in the management of syphilitic (the usual cause at that time) ostial coronary artery stenosis. Despite this development in vascular surgery by Carrel in the early part of the twentieth cen­tury, it took half a century before coronary surgery became of age as an applicable operation.
In 1958, W.P.Longmire anastomosed the internal mammary artery to a coronary artery that fell apart whilst attempting endarterectomy. Before this, in 1952, Vladimir Demikhov, the pioneering transplant surgeon, had done the same operation successfully in Moscow, but as a result of the communication blackout between the USSR and the USA, his work was not dis­covered until sometime later.
The advancement of the procedure relied on the development of coronary visualisation. In 1958, Mason Stones inadvertently injected radio-opaque dye into the right coronary artery of a patient where the intent was to visualise the ascending aorta. Fearing the worst, Sones was mightily relieved when the patient’s heart, which had paused for a long moment, began to beat again. Inadvertently, this was the birth of coronary angiography.
Once the coronary arteries could be visualised, surgery could be planned with accuracy paving the way for safe coronary artery bypass surgery, at one stage the most commonly per­formed operation in the modern world. Arterial revascularisation, using the internal mammary artery, began with the Vineberg procedure. Arthur Vineberg of McGill University began this work in 1946. The internal mammary artery was mobilised and ligated distally. The proximal end was buried in a tunnel in the muscle of the left ventricle. Unlike free bleeding into a skel­etal muscle where a large haematoma would form, this did not happen in the myocardium which seemed to soak up the blood like a sponge. In 1950, he operated on the rst human patient, who remarkably, 3 years later, reported feeling well and able to walk 10 miles through the bush without symptoms. He began a programme of treatment, which included wrapping the heart denuded of epicardium with mediastinal fat or greater omentum. Using the new Sones angiography, he later showed that 70–80% of patients produced identiable anastomo­ses with the coronary circulation and with a mortality of only 2%.
Direct anastomosis of the internal mammary artery to an obstructed coronary artery was described by Kolessov in 1967 and George Green in 1968. The success of this operation began the widespread dissemination of the practice of coronary artery bypass surgery or col­loquially referred to as CABG.René Favaloro then popularised saphenous vein grafting to extend the utility of the procedure in patients with multi-vessel disease.
Corrective surgery of the aorta began with the introduction of the Dacron tube graft by Dr. Michael DeBakey. Several materials, mainly nylon based, were tried as tube grafts but none were successful. DeBakey discovered Dacron in a department store in Houston. It was sold as backing for turn-ups on trousers and other dressmaking techniques. His mother was a seam­stress and taught him how to create a tube graft. He then produced his own tube graft and
Preface
Preface
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bifurcation grafts. A patient of DeBakey’s happened to be a sock manufacturer, and following a conversation with him about knitting they went on to develop the machine and plant to make knitted Dacron grafts. This same process is used today. Initially, these grafts had to be soaked in the fresh blood of the patient to form clots within the weave allowing the graft to be implanted without catastrophic haemorrhage. In these modern times, the grafts are pre-coated with col­lagen and albumin, and pre-clotting is no longer needed.
A development that caused massive general interest in our speciality was the development of heart transplantation. Seen from the perspective of Theodor Billroth, who berated even the idea of surgery of any kind on the heart, this step was seen by many contemporary physicians, ethicists and theologians as a step too far. The mystic quality of the heart and the need for another human being to be deprived of their own heart in the state of brain death were viewed as repugnant and a modern form of cannibalism. The facts of the matter however were very different. Serious scientic work around, selection criteria, immunosuppression in the recipi­ent and surgical management meant that by the early 1960s, laboratory work was showing signicant promise. The outstanding problem however was that of satisfactory immunosup­pression. Strides had been made in renal transplantation by Murray in Boston and Calne in Cambridge, but there is of course a profound difference between renal and cardiac transplanta­tion. A failed renal transplant can be replaced with dialysis. There was no such meaningful long-term support for the ailing heart.
Once again, a leader in the eld by decades was Demikhov in Moscow, who had also trans­planted the heart of a dog into another, which on the sixth day post-operatively managed to climb the stairs of the Kremlin, before expiring with rejection a few days later. He also trans­planted the head of a puppy to another dog which functioned for several days.
Norman Shumway in Stanford University had had been working tirelessly to develop the procedure and to try to understand the process of rejection. A major step forward was the sim­plication of the operation of implantation. He modied the procedure from attempting to anastomose all pulmonary veins, cavae and great vessels to the use of atrial cuffs and great vessels. With this, he made good progress in the laboratory. However, he realised that immu­nosuppression was not yet t for purpose.
Enter the charismatic South African surgeon Christiaan Barnard and his brother Marius. Barnard had spent time with Lillehei in Minneapolis and performed well leaving a good impression. On his return to Groote Schuur in Cape Town, his position was secured, and he returned for a period with Shumway picking up their technology. Without announcing his intentions, he returned to South Africa, precipitously gathered a team around him and per­formed the world’s rst successful heart transplantation on Louis Washkansky, a diabetic with terminal heart failure. The news circled the globe, and Barnard became a surgical superstar overnight, featuring on the cover of Time magazine as well as almost every other respectable publication in every country.
The inevitable happened, and suddenly every “self-respecting” cardiac surgeon “had a go” with catastrophic results. The rst in the UK was by Donald Ross at the National Heart Hospital. Some early successes were reported, but most patients succumbed to rejection from days to weeks after surgery. The result of this was a moratorium on further attempts in the UK in the early 1970s. There was one small but most important shining light of persistence in California. Norman Shumway and his team continued to work steadily with improving results. During the decade of the 1970s, much was learnt to the extent that a relaunch of the procedure became viable in 1979. In January of that year, Sir Terence English and his team at Papworth Hospital in Cambridge began his programme, which despite the lack of adequate funding but with detailed and determined efforts began to yield good results. Others followed. Then another breakthrough came with the introduction of the new and game-changing immunosuppressant cyclosporin A.
This was followed quite quickly by the transplantation of the heart-lung block for patients with cystic brosis and end-stage pulmonary hypertension by Shumway’s team once again.
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Contemporary results are excellent with 98% one year and 92% 5 years with a median survival of 10 years. This once outlawed procedure had become mainstream.
As can be seen from this brief review, the early development of this important speciality frequently revolved around personal household experience and happenstance. As things have progressed, more science and engineered technology have been used to the point of sophistica­tion that we know today.
More recently, the mechanical articial heart as a bridge to transplantation and a permanent replacement has made slow but steady progress. The percutaneous insertion of replacement heart valves moves ahead at a fast pace, and the treatment of coronary artery disease has become truly hybrid with evidence-based integration of transcatheter techniques of angio­plasty and stenting with the judicious use of coronary bypass surgery.
The story will not end here, and the next 70 years of development of cardiac disease treat­ment promises to be just as exciting as the rst.
References
1. Harken D.Foreign bodies in and in relation to the thoracic blood vessels and the heart. Surg
Gynaecol Obstet. 1946; 83:117–25.
2. Arora R, Nair M, Kalra GS, Nigam M, Khalilullah. Immediate and long-term results of
balloon and surgical closed mitral valvotomy: a randomised study. Am Heart J. 1993;125(4):1091–4.
3. Gott V. Cross-circulation: a milestone in cardiac surgery. J Thorac Cardiovasc Surg.
2004;127(3):617.
Preface
Suggested Reading
• Forrester J.The Heart healers. Mists, Mavericks and rebels who created the greatest medi-
cal breakthrough of our lives. St Martin’s Press; 2015. ISBN 978-1-250-05839-3.
• Morris T. A history of the heart in eleven operations. Penguin Random House. ISBN
9781847923912.
• Westaby S, Bosher C.Landmarks in cardiac surgery. Oxford UK: Isis Medical Ltd. ISBN 1
899066 54 3. 1997
Cambridge, UK FrancisC.Wells
Contents
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Part I Ischaemic Heart Disease
1 Coronary Artery Bypass Grafting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Samer A. M. Nashef
2 Off Pump Coronary Artery Bypass Grafting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Rizwan Q. Attia and Ravi J. de Silva
3 Surgical Treatment of Complications of Acute Myocardial Infarction:
Postinfarction Ventricular Septal Defect and Free Wall Rupture . . . . . . . . . . . . . 13
Choo Ng
4 Complications of Myocardial Infarction: Papillary Muscle Rupture . . . . . . . . . . 19
Francis C. Wells
Part II Valve Surgery: Aortic Valve Surgery
5 Timing of Heart Valve Surgery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Madalina Garbi
6 Surgery for Aortic Valve Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Ismail Vokshi and Steven Tsui
7 Aortic Root Enlargement Techniques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Rizwan Q. Attia, Shakil Farid, and Steven Tsui
8 Valve Sparing Aortic Root Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Rizwan Q. Attia and Ravi J. de Silva
9 Minimally Invasive Aortic Valve Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Rizwan Q. Attia and Shakil Farid
Part III Valve Surgery: Mitral Valve Surgery
10 Surgical Access to the Mitral Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Francis C. Wells and Narain Moorjani
11 Surgical Correction of Degenerative Mitral Valve Disease . . . . . . . . . . . . . . . . . . . 63
Francis C. Wells
12 Surgery of Rheumatic Mitral Valve Disease . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Francis C. Wells
13 Mitral Valve Infective Endocarditis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Narain Moorjani
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Part IV Valve Surgery: Tricuspid Valve Surgery
14 Tricuspid Valve Disease Techniques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Narain Moorjani, Francis C. Wells, and Samer A. M. Nashef
15 Tricuspid Valve Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Narain Moorjani
Part V Surgery of the Aorta
16 Aortic Arch and Ascending Aorta Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Ravi J. de Silva
Part VI Surgery of the Failing Heart
17 Cardiopulmonary Transplantation: An Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Marius Berman
18 Lung Transplantation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Pradeep Kaul, Lu Wang, and Mohamed Osman
19 Orthotopic Heart Transplantation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Ahmed Al-Adhami and Steven Tsui
Contents
20 Heart-Lung Transplantation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Muhammad U. Raq and Steven Tsui
21 Mechanical Circulatory Support and DCDD Heart Transplantation . . . . . . . . . . 155
Stephen Large and John Onsy Louca
Part VII Pulmonary Thromboendarterectomy
22 Pulmonary Endarterectomy Surgery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
David P. Jenkins
Part VIII Pericardial Disease
23 Pericardiectomy for Constrictive Pericarditis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Jason Ali
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Contributors
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AhmedAl-Adhami, MBChB (Hons) MRCSEd Department of Cardiothoracic Surgery and Transplantation, Royal Papworth Hospital, Cambridge, UK
Jason Ali, MA (MedEd), PhDm, FRCS Department of Cardiothoracic Surgery, Royal Papworth Hospital, Cambridge, UK
RizwanQ.Attia, MS, MD, PhD, FRCS(C-Th) Department of Cardiothoracic Surgery and Transplantation, Royal Papworth Hospital, Cambridge, UK
Marius Berman, MD, FRCS (CTh) Royal Papworth Hospital NHS Foundation Trust, Cambridge, UK
ShakilFarid, FCPS (Surgery), FRCS (C-Th), MBA Department of Cardiothoracic Surgery and Transplantation, Royal Papworth Hospital, Cambridge, UK
Madalina Garbi, MD, MA, FRCP Department of Cardiology, Royal Papworth Hospital, Cambridge, UK
DavidP. Jenkins, FRCS, MS (Lond), FRCS (CTh) Department Cardiothoracic Surgery, Royal Papworth Hospital, Cambridge, UK
PradeepKaul, FRCS (CTh) Royal Papworth Hospital, Cambridge, UK
StephenLarge, FRCS (CTH), MRCP, MBA, PAE (RCP) Department of Cardiac Surgery,
Royal Papworth Hospital, Cambridge, UK
JohnOnsyLouca, FRCOG, MSc Gonville & Caius College, Cambridge, UK
NarainMoorjani, MB ChB, MRCS, MD, FRCS (CTh), MA Department of Cardiothoracic
Surgery, Royal Papworth Hospital, Cambridge, UK
Samer A. M. Nashef, MB, ChB, FRCS, PhD Department of Surgery, Royal Papworth Hospital, Cambridge, UK
ChooNg, MB BCh FRCS (CTh) Department of Cardiothoracic Surgery, Royal Papworth Hospital NHS Foundation Trust, Cambridge, UK
MohamedOsman, MD, PhD Transplant Surgery, Royal Papworth Hospital, Cambridge, UK
Muhammad U. Raq, FRCS C-Tha Department of Cardiothoracic Surgery and
Transplantation, Royal Papworth Hospital, Cambridge, UK
RaviJ. de Silva, MBBS, MRCS (Ed), MS, FRCS (CTh) Department of Surgery, Royal Papworth Hospital NHS Foundation Trust, Cambridge, UK
StevenTsui, MD, FRCS (Eng), FRCS(C-Th) Department of Cardiothoracic Surgery and Transplantation, Royal Papworth Hospital, Cambridge, UK
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IsmailVokshi Department of Cardiothoracic Surgery and Transplantation, Royal Papworth Hospital NHS Foundation Trust, Cambridge, UK
LuWang Transplant Surgery, Royal Papworth Hospital, Cambridge, UK
FrancisC.Wells Department of Cardiothoracic Surgery, Papworth Hospital, Cambridge, UK
Royal Papworth Hospital, Cambridge University Group of Hospitals, Cambridge, UK
Contributors
Part I
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Ischaemic Heart Disease
Coronary Artery Bypass Grafting
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SamerA.M.Nashef
1
In 1964, Vasilii Kolesov carried out the rst coronary artery bypass grafting (CABG) operation using the left internal mammary artery (LIMA) to graft the left anterior descending (LAD) in St Petersburg. Three years later, René Favaloro performed a similar operation at the Cleveland Clinic using a saphenous vein graft. Half a century after this pioneering work, CABG is now one of the most frequently performed surgical operations in the world. Despite increasing competi­tion from percutaneous intervention, CABG remains a phe­nomenal success story, unparalleled in its remarkable dual ability to eliminate symptoms and extend life, both of which are achieved at a very low risk of mortality which should be less than 1% overall.
The standard version of CABG, and the one that features in the overwhelming majority of operations, consists of grafting the LAD with the LIMA and using saphenous vein grafts for other coronary arteries, with the operation being performed on cardiopulmonary bypass, a cross-clamped aorta and cold blood cardioplegia. Myriad alternatives to this have been proposed, such as total arterial revascularisation, minimal access approaches, video-assisted and robotic sur­gery, hybrid revascularisation, and off-pump CABG, with a variety of claims to better short-term and long-term out­comes. These approaches are performed successfully in many centres, but have not yet supplanted the standard oper­ation which will be the central theme of this chapter. I shall describe the steps taken to bypass the three major coronary arteries (the left anterior descending (LAD), the right or pos­terior descending coronary artery (PD), and the major obtuse marginal (OM) branch of the circumex).
Procedure
Preparation
After sternotomy, the LIMA is taken down. Using a retractor that elevates the left hemisternum, the LIMA is harvested as a pedicle, with surrounding veins and soft tissue, taking care not to injure it or even touch it. This can usually be achieved using only diathermy and blunt dissection, but occasionally metal clips may need to be used for large side branches. It is important that the entire length of the artery is taken down, especially proximally, so that the graft lies posterior to the left lung for the most direct route to the LAD.The LIMA is then left attached to the circulation at both ends while prepa­rations are made for cardiopulmonary bypass. During the LIMA harvest, the long saphenous vein is taken from the lower leg, starting at the ankle and going up to just above the knee to secure sufcient length for two grafts, or further if additional grafts are contemplated.
Once heparin has been given and the bypass cannulae are in place, the LIMA is divided distally and checked for good ow before applying a bulldog clamp. The vein is checked for leaks, calibre and overall suitability as a conduit. Bypass is then instituted, and the next few minutes are spent in plan­ning the operation by identifying and preparing the target coronary arteries, so that there are no surprises once the aorta is clamped. A 15 blade is used to divide any epicardial fat over each target. Inspection and palpation ensure that there is no atheroma or calcium at the planned anastomotic site. The aorta is then clamped, and cardioplegic solution is infused into the aortic root. With the heart stopped, the cardioplegic cannula is attached to a pump sucker, but this should be switched off before any coronary is opened, to prevent dam­age to the back wall of the artery on arteriotomy.
S. A. M. Nashef (*) Department of Surgery, Royal Papworth Hospital, Cambridge, UK e-mail: sam.nashef@nhs.net
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2023 F. C. Wells (ed.), Atlas of Cardiac Surgery, Springer Surgery Atlas Series, https://doi.org/10.1007/978-3-031-43195-1_1
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Distal Anastomoses
Usually, the right coronary or its PD branch is done rst. Access is made easier by dropping any left-sided pericardial stay sutures and rotating the heart away from the surgeon with a couple of moist swabs tucked in behind the right pul­monary veins. The already prepared anastomotic site is entered with a sharp, pointed blade, or diamond knife. The aortic root suction can now begin. The arteriotomy is extended with ne Potts scissors or similar. An arteriotomy of around 5–7mm is usually sufcient.
The technique I shall describe for the distal anastomosis is my own, but has the distinction of having been invariably adopted by every trainee who has been through Papworth in the last 30years, so that it is now in very widespread use. It is also time-efcient and, on a good day, with favourable access and no snags, a distal anastomosis can be completed in less than 7min.
Once the heart has been correctly positioned and the arte­riotomy has been made, the surgeon holds the end of the vein with the adventitia pinched between thumb and forenger. The scrub nurse passes the surgeon a 7/0 double-ended poly­propylene suture mounted on a ratchetless Castro-type nee­dle holder with a small rubber-shod mosquito forceps clamped on the other end of the suture and held by the nurse. (Note: ratcheted needle holders can also be used, but the ratchet slows the procedure down, jerks the needle while in the tissues and prevents the use of the SEXI techniques [1].) The rst suture is through the vein, outside-to-in, 1mm from the heel on the surgeon’s side.
The surgeon then withdraws the suture and while pulling it through, the nurse brings the other end held by the mos­quito to lie on the chest wall just lateral to the right sternal retractor blade (Fig.1.1). A fold in the surgical drape helps prevent the mosquito falling to the side.
The surgeon then takes the coronary 1mm from the heel, inside-to-out, picks up the needle, and takes the heel of the vein outside-to-in (Fig.1.2), then the heel of the artery, then the vein 1mm beyond the heel, and similarly the artery. We now have three loops of suture joining the heels of vein and artery (Fig.1.3). Pulling only on the active suture end, the vein is brought down until it touches the artery. Then pulling on the suture is stopped, and the vein is drawn away to take up any slack in the loops. This is repeated till the vein and the artery are together (this method prevents sutures from slicing through either the coronary or the conduit: one should never pull simultaneously on suture and conduit). At this point, the fold in the surgical drape is straightened out and the mosquito clip allowed to fall gently under gravity so as to keep the artery open with its opposing walls away from each other.
S. A. M. Nashef
Fig. 1.1 The start of a distal anastomosis: the rst pass takes the con­duit one stitch from the heel, outside-to-in. As your hand is holding the conduit, be sure to pick up the needle ready for the next stitch in the coronary artery and avoid having to remount
Fig. 1.2 The second suture in a distal anastomosis: take the coronary artery one stitch from the heal, inside-to-out. Similarly, pick up the needle in situ ready for the next stitch in the conduit
Fig. 1.3 The three heel sutures are in, and the conduit should be ‘para­chuted’ down onto the coronary artery in stages. Pull only on the active end of the suture, and never pull on conduit and suture simultaneously, to avoid the suture cutting through either vessel