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The 25 Landmark 'Milestone' Papers Published by ASAIO

1955-2003

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Artificial Kidney (Hemodialysis)

 

1.                  Kolff, W.J., "The Artificial Kidney - Past, Present and Future," TASAIO, 1:1-7, 1955

 

Commentary:  This article is the first paper printed on Page 1 to 7 of Volume 1 of ASAIO Transactions by WJ Kolff.  This transaction was typed by June Salisbury, wife of Dr. Peter Salisbury, the founder of ASAIO and the third president of ASAIO (1957-1958).  The congress was held in Hotel Chelsea in Atlantic City on June 4, 1955 by 47 founding members.  Most of them were interested in developing artificial kidney and the heart-lung bypass machine. 

Dr. WJ Kolff was the founding president of ASAIO during 1955-1956.  Thus, this article should be considered as the first presidential address of ASAIO.  As everybody is well aware, Dr. Kolff is credited with the first clinical use of the artificial kidney in 1943 as well as currently promoting the development of the wearable artificial kidney.  His achievements also include development of an artificial heart and cardiac assist devices.  He also has interest and experience in organ preservation for transplantation, blood oxygenators, biomaterials, and artificial eyes and limbs. Dr. Kolff, while truly the original pioneer of artificial organs, remains in the forefront of modern artificial organ development during the last 60 years.

Willem Kolff was born in The Netherlands and received his M.D. in Leiden in 1938 and a Ph.D. degree based upon “Die Kunstliche Niere” from the University of Groningen in Holland in 1946.  From 1950 to 1967 he was affiliated with the Cleveland Clinic Foundation, ultimately as scientific director of the Artificial Organs Programs.  Since 1967 he has been the distinguished professor of surgery and medicine and at the School of Medicine of the University of Utah until he became 90 years old.  In 1986, he received the Japan International award.  In 2002, he received the Lasker for Clinical Medical Research Award because he made the first kidney dialysis machine in 1943.

This paper was voted as a top ASAIO publication because after 50 years, approximately one million patients are being kept alive with the technologies developed by Dr. Kolff. -- Yukihiko Nosé, MD, PhD

 

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Three articles that forever changed dialysis– one million patients later. 

-- C.M. Kjellstrand, MD, PhD, FACP, FRCP(C); C.R. Blagg, MD, FRCP; T.S. Ing, MD. FACP, FRCP(C, UK).

 

Commentary:  It is rare, for a single individual and group, to make as many contributions to medicine and mankind, as came out of Dr. Scribner and his team in Seattle in the 1960’s and 1970’s. Yet, all three articles, deemed the most important in dialysis by the ASAIO membership, came from that team in the early 1960’s. Solutions to the problems of providing long-term dialysis poured out of the University of Washington, and Seattle became the Mecca for all of us who wanted to learn the technique and study the early experience and problems of long-term dialysis.

The development of dialysis for short-term treatment of life-threatening acute uremia took over 30 years. It started in 1912 at the Johns Hopkins University with dialysis first of rabbits, then of dogs and in 1915 an exchange of 400-ml blood in a human. The term “artificial kidney” was coined in an article describing the Johns Hopkins vividiffusion apparatus that was published in the London Times in 1913. Haas did continuous dialysis of five patients in the mid-1920’s.  The first practical technical solutions came in the mid-1940’s almost simultaneous by Kolff in the Netherlands, Alwall in Sweden and Murray in Canada.

Artificial internal organs are the practical end-products of curiosity, hypothesis and laboratory experiments to verify or reject the hypothesis.  Some 230 years ago, Hilaire-Marin Rouelle’s curiosity of what is in urine led to boiling it dry and finding the white residue, which he named urea. Fifty years later in Germany, Friederich Wöhler, who had been a pupil of the Swedish chemist Berzelius who described the periodic system, synthesized and determined the size of the urea molecule. Half a decade later, Thomas Graham the father of colloid chemistry, separated molecules by dialysis in his laboratory.  This was at about the same time that Claude Bernard hypothesized that maintaining the internal milieu was the true function of the kidneys.  Curiosity, hypothesis and laboratory experimentation laid the foundation.  Knowledge knew no geographical boundaries in those days before “intellectual and - - grotesquely - biological property”.

The practicalities of blood-thinning – leeches and heparin - and durable and blood-friendly membranes followed and set the stage for the apparatus developed by Abel, Rowntree and Turner at Johns Hopkins University.  They prophesized that a solution to uremia would soon come but two world wars delayed this for more than three decades.  Dialysis treatment for acute renal failure took off after World War II.

One dread we all had in those days was to start a patient on dialysis and then find that renal function did not return. There are only so many blood vessels sites that can be cut down for connection to an artificial kidney and sooner or later these ran out. Several physicians sought for the Holy Grail of endless connections of man to machine. Alwall tried using glass-cannulas in an artery and vein and shunted with a piece of rubber tubing between dialyses but this did not work. The material was wrong and the shunt stayed open for only a couple of days even with the help of dangerous amounts of heparin. Parsons tried using available plastic tubing in the late 1950’s but the result was the same.

When Scribner was faced with the problem in 1960, Teflon tubing had just become available.  It worked. Literally overnight the solution was there and soon the number of patient began to grow beyond everybody’s predictions. Today more than a million people are alive and on chronic dialysis, thanks to the observation, perseverance, intelligence, clinical research and generosity of Dr. Scribner and his team. The 1960’s were the glory days of nephrology before the era of destructive patent fights and dialysis for profit. Not a penny for personal use came from what was the most important discovery in modern nephrology!

The three papers selected below are among the most important contributions to dialysis in the ASAIO Transactions and illustrate the quick transition from discovery through experiment to practical application.

 

 

2.                  Quinton W, Dillard D, Scribner BH: Cannulation of blood vessels for prolonged hemodialysis. Trans Am Soc Artif Intern Organs 6:104-113, 1960. ,  AND, Scribner BH, Buri R, Caner JEZ, Hergstrom R,  Burnall JM:  The treatment of chronic uremia by means of intermittent  hemodialysis: A prelimninary report.  TASAIO 6:: 114-122. 1960

 

Commentary:  All is there – the dimensions; the detailed instructions for using the heating contraption for bending Teflon tubing and extruding the vessel tip that caused burns on so many nephrologists’ pinkies; the care needed to cut the tip just right to fit it to the size of the blood vessel while avoiding any frayed edges and the little pliers that allowed one to do so; the arm plate; the complicated “Swagelok” connectors that were plumbing supplies; a careful description of the surgical technique; and the histological proof that the cannula did not set up any destructive tissue reactions.  It is all there in crystal clear terse prose.  The paper is only 6 pages long, double-spaced and in large print, with three pages of illustrations.  This was the solution to the problem of repeated dialyzer connections that previously had frustrated everyone.

What is less well known is that this paper was never presented at the ASAIO Annual Meeting.  The shunt was first used on March 9th of 1960, but the program for the ASAIO meeting that April was already complete.  Scribner took the patient, Clyde Shields, Clyde’s wife and Wayne Quinton, the engineer, to the meeting in Atlantic City.  Clyde was shown to a small group that included Pim Kolff, John Merrill and George Schreiner at a breakfast meeting and that evening in his hotel room Quinton demonstrated how to fabricate the shunt.  Schreiner, who was editor of the ASAIO Transactions, realized the importance of this development and allowed Scribner to write it up for publication in the 1960 Transactions.

Preceding the cannulation paper in the 1960 Transactions is a detailed description of the technique of prolonged continuous hemodialysis that was presented at the meeting.  In 1959, Paul Teschan had reported the benefits of prophylactic intermittent hemodialysis in the treatment of acute renal failure.  Scribner thought that an alternative approach would be continuous hemodialysis for 24 hours at a time and developed a system to provide this.  With development of the Teflon shunt this was used to treat the first patients with chronic renal failure.  -- C.M. Kjellstrand, MD, PhD, FACP, FRCP(C); C.R. Blagg, MD, FRCP; T.S. Ing, MD. FACP, FRCP(C, UK).

 

 

3.                  Scribner BH, Caner JEZ, Buri R, Quinton WE: The technique of continuous hemodialysis. Trans Am Soc Artif Intern Organs 6:88-93, 1960

 

Commentary:  The team describes the technique in great detail, including the mathematical considerations of urea removal underlying the use of the huge 15 cubic foot home freezer tank, and the reasoning behind choosing a low resistance parallel-plate dialyzer so as to allow enough blood flow without the use of a blood pump. Dialyses were done with dialysate at 4o C as this cold temperature inhibited bacterial growth and also reduced clotting in the extracorporeal circuit. The report details how to connect the Teflon cannulas to the very long 20 feet of blood tubing that allowed the arterial line to pass through the dialysate tank to cool blood entering the dialyzer and let the venous line pass through a warming bath before returning to the patient.  It also allowed the patient to move around during the very long dialysis runs.  Some acute patients were hooked up to the system for up to 14 days!  The paper includes a brief description of the ten patients with acute renal failure and eight with chronic renal failure that provided the clinical basis for the metabolic calculations. Twenty grams of nitrogen, corresponding to a combined catabolic/dietary intake load of 120 grams of protein, was removed daily.

These two papers were the shots heard around the world of physicians dealing with uremia that was the start of the revolution against the early death of end-stage renal disease.  The Seattle team continued their research at a breath-taking speed.  Articles related to the medical problems of anemia, bone disease, hypertension and other associated serious medical problems also first originated from Seattle.  In addition, other equally vexing problems not previously considered were dealt with head on.  These included reports on the world’s first out of hospital community dialysis unit, experiences of taking care of a large number of patients and the ethics of patient selection.  Scribner’ presidential address to the ASAIO in 1964 on the latter subject is still worth rereading.

Thirteen years later, hearings in the US Congress resulted in the incorporation of dialysis and kidney transplantation into Medicare. At that time there was no comprehension of the magnitude of the program that would result.  The latest forecast from the US Renal Data System suggests the need to provide care to 600,000 patients in the USA, 0.2% of the entire US population, by the end of the present decade!   -- C.M. Kjellstrand, MD, PhD, FACP, FRCP(C); C.R. Blagg, MD, FRCP; T.S. Ing, MD. FACP, FRCP(C, UK).

 

 

4.                  Eschbach JW, Jr., Wilson WE, Jr., Peoples RW, Wakefield AW, Babb AL, Scribner BH: Unattended overnight home hemodialysis. Trans Am Soc Artif Intern Organs 12:346-362, 1966

 

Commentary:  Dialysis was very expensive – and when this paper was published seven years before the Congress acted it was out of reach of almost anyone but the richest patient.  The obvious solution was to send the patients home for dialysis. The Seattle team set out to solve all the problems that came with this.  It soon became obvious that the long treatment times greatly interfered with the lives of patients and their families and the solution suggested by Stanley Shaldon was overnight dialysis. 

The equipment used was the first single patient system using proportioning pumps to make dialysate.  Three monitors were developed to solve the problem of patient safety in the home: a blood leak detector, a negative pressure monitor in the dialysate compartment and an arterial blood pressure monitor in the extracorporeal circuit.  The equipment, training, maintenance and medical supervision are described.  It is hard today not to laugh out loud or to develop acute depression on reading the cost analysis that showed the initial cost of equipment, home remodeling and two months of training came to all of $12,800 and from then on the yearly cost was $4,150 - physician payment and laboratory costs were each $200!  The paper details the various medical, technical and psychological problems of the first eight patients and the ways to deal with them. The patient who had been on the system the longest had 24 months of experience and total experience for the whole program was 94 patient months. The difficulties of performing remote monitoring - two of the patients were in California and one in Madras, India - and how this problem was solved by cooperation with local physicians are explained.

It would take another 30 years before this experience was reproduced in Toronto and further improved by dialyzing every night rather than three times weekly.

Many of the lessons taught by the Seattle team, especially the importance of long dialysis times to combat hypertension, fluid overload and cardiovascular disease, were forgotten as commercial priorities, supported by a wrong-headed emphasis solely on small molecule removal, led to cranking up of dialyzer urea clearance while shortening dialysis time.  Much is now being relearned.  Time on dialysis is in itself of great importance in the survival of dialysis patients.  “There is nothing new under the sun, everything has been done before!”

One cannot help but marvel at the unprecedented and tantalizing accomplishments and feel one’s spirits buoyed, while reviewing the heydays and trailblazing of dialysis so exquisitely illustrated by these three landmark publications that began the effort to banish death from chronic renal failure from the list of hopelessly incurable diseases!  -- C.M. Kjellstrand, MD, PhD, FACP, FRCP(C); C.R. Blagg, MD, FRCP; T.S. Ing, MD. FACP, FRCP(C, UK).

 

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5.                  Henderson LW, Besarb A, Michaels A, Bluemle Jr: Blood purification by ultrafiltration and fluid replacement (diafiltration). TASAIO 13:216-225 , 1967.

 

Commentary:  Medical therapy is an interdisciplinary field, and advances evolve at the interface of basic science, engineering and medicine. Physicians and bioengineers make progress in disease therapy by borrowing technologies and applying them to solve certain problems. In this paper Henderson and others clearly describe the problem with use of diffusion for removal of uremic substances in hemodialysis devices. Especially for larger solutes, diffusion is a significant limitation to their removal. Up to the time of this publication, ultrafiltration was “a familiar process” for removal of fluid and water during dialysis. These authors for the first time explained the potential for hemofiltration membranes to remove large toxins at rates equal to that of small toxins, up to the m.w. cutoff of the membranes. Beyond merely providing an hypothesis,  the authors outlined details on everything needed to make hemofiltration workable: the membranes (newly developed flat sheet Diaflo membranes of net neutral charge), the proposed chemical components of sterile replacement fluid (reconstitution fluid), and how to obtain any desired ultrafiltration rate from blood. In addition there is elegant testing to demonstrate a near zero reflection coefficient for uremic toxins and a high reflection coefficient for plasma proteins. A theoretical model is provided to predict required membrane surface area of a clinical hemofiltration device to give 300 ml/min ultrafiltrate.  In spite of all of the elements described in this paper, hemofiltration wouldn’t be practical until the membranes were produced in hollow fiber rather than sheet form. Prophetically, Lipps and others first described “The Hollow Fiber Artificial Kidney” at this same ASAIO meeting and in this volume of ASAIO Transactions, page 200. -- Stephen R. Ash, MD, FACP

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6.                  Menno, AD, Zizzi J, Hodson J, McMahon J., "An Evaluation of the Radial Arterio-Venous Fistula as a Substitute for the Quinton Shunt in Chronic Hemodialysis," TASAIO 13:62-76, 1967.

 

Commentary:  When we look at medical practice in  retrospect, commonplace things and practices that seem obvious now to us were almost never obvious at the time of invention. The arterio-venous fistula for chronic dialysis access is one example. In 1960, Quinton,  Scribner and others first published on the “silastic-teflon bypass cannulaarteriovenous shunt, in ASAIO Transactions (see Gold Journal Papers #3). This access was clearly an “engineer’s solution,” hydraulic and mechanical in design, a permanent transcutaneous device with separable parts. The AV shunt was somewhat cumbersome and occasionally risky though when placed properly quite successful, and the device established the first practical blood access for chronic hemodialysis. Nothing could have been more contrary to this device, or a more purely  biological” approach, than the arteriovenous fistula. Instead of creating a permanent transcutaneous tract, the AV fistula changed native anatomy, allowing enlarged veins to be intermittently and easily cannulated with needles that were placed for dialysis then removed. Brescia, Cimino and Appel (all nephrologists, by the way) first published on this type of access in the New England Journal late in 1966. However, the earliest informal presentation in the U.S. was probably that of Cimino, in a short discussion requested by Dr. Galletti at the 1966 ASAIO meeting (ASAIO Transactions, page 227, volume 12). Here he describes 14 months of experience in 10 dialysis patients with AV fistulae, which he refers to as “non prosthetic fistulae.” He briefly describes the method of creation of the radial artery/cephalic fistula, and then describes the proper position and direction of the needles to diminish admixture of outflow and treated blood (also providing a clear photograph). But, he raises several questions regarding this new idea: can it cause high output heart failure, do patients mind  the needlesticks, do the veins hold up to repeated puncture and are there complications?

 

By the next year’s ASAIO meeting, Menno, Zizzi, Hodson and McMahon from Deaconess in New York were ready to present a paper answering many of the basic questions regarding AV fistulas for use in dialysis, based on experience in 10 patients. Using well-done angiograms they showed that there were few changes in the vein wall after 9 months of use of  a fistula for dialysis (152 punctures). Only one patient of 10 developed “arborized” veins. Cardiac output determinations by cardio-green dye dilution method showed an increase of resting cardiac output of only 10-28%. Heart size increased in only three patients, and in these patients depended upon control of hypertension and salt balance. The patient’s acceptance of the fistula was very high, especially compared to the Quinton shunt, with patients stating “freedom from the encumbrance of the Teflon-Silastic cannulae, freedom to swim and bathe at will, and a release from a constant anxiety about thrombosis, infection, and disruption of the plastic shunts…” From this publication onward, the AV fistula was here to stay as the best possible dialysis access. Over the years however there has been a tendency in the U.S. to develop and use more mechanistic and artificial access approaches, including the arterio-venous PTFE graft and cuffed, tunneled central venous catheters. Recent educational programs by the renal Networks and CMS such as the “National Vascular Access Initiative” have been developed to re-educate nephrologists and surgeons about the intrinsic safety and longevity advantages of the AV fistula versus any other access. These programs should start by distributing this landmark and compelling paper from ASAIO Transactions, 1967.  -- Stephen .R. Ash, MD, FACP

 

Commentary:  Throughout the 1960s and 1970s surgical residents learned the tedious details of construction, management, declotting, and replacement of Quinton Scribner shunts.  Although the external silicone rubber shunt made chronic intermittent hemodialysis possible, the hardware needed constant tending.  This paper by Meno and others was one of the first to describe creation of a forearm arterial-venous fistula to provide access for intermittent chronic hemodialysis.  As the AV fistula matured, the ready accessibility of the large, tough, pulsating veins on the surface of the forearm gradually made the external prosthetic shunt obsolete.  When this paper was presented in 1967 the idea of such an invasive procedure simply to dialyze the few patients dependent on chronic hemodialysis seemed rather outrageous.  Not even the most optimistic nephrologist anticipated the fact that hundreds of thousands of patients with chronic renal failure would be managed in this fashion decades later. Robert Bartlett, MD

 

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