Thursday, July 19, 2007

Safari!

Monday July 2, 2007



I got back from an amazing four-day safari in South Luangwa National Park, Zambia. Its a busy day at clinic and I don't have much time to write now, so I'll let the photos do the talking this time :)















Thursday, July 12, 2007

It takes a village...




June 27, 2005

One thing that has really struck me about Malawian culture is the strong and inclusive concept of family. This is especially evident in the Baylor clinic, where many of our patients have lost one or both parents to HIV. With so many orphans here, the cliché “it takes a village to raise a child” rings truer than you could ever imagine. Grandmothers, schoolteachers, mothers’ brothers’ wives’ friends, all play major roles in these childrens’ lives and from what I’ve seen, they are often happy to do so. I can still imagine the yelp for joy when I told a woman that her baby sister (who she acted as guardian for after both their parents had died of AIDS) had tested negative for HIV, and the tight hug of the baby girl which followed… though I’m sure she would have cared for the baby either way.

You hear all kinds of new descriptives for family positions here- for example, an eight year old patient was brought today by his “young father,” which meant his own father’s twenty-one year old brother, an affable and educated guy who has had full custody of the kid for the last three years since both parents passed away. While I myself can’t even imagine starting a family until at least my late twenties, here was somebody who stepped up and took responsibility for his HIV positive nephew at the dawn of his own adulthood. There was no agenda here- it was sheer family loyalty and duty that compelled him to give up many of the luxuries of being a carefree teen or twenty-something. And he seemed quite contented in his position to boot, taking pride in his nephew’s school achievements, helping the boy learn English at home, and showing deep concern for the boy’s well-being. We noted that the young father” had been so compliant in administering his nephew’s ARV regimen that we were able to lengthen the intervals between the child’s maintenance visits from two weeks to two months.

Though we see many positive stories of people like the “young father” or the many grandmothers, either taking on parenthood early or going through round two of it for the sake of their HIV+ kin, there are also too many kids that have nobody- or are not cared for by the few they have. At the hospital last week, I encountered an orphan male patient who was many hours from his home village undergoing what we thought to be Stevens-Johnson syndrome (SJS).

HIV fact of the day: Stevens-Johnson syndrome is an allergic reaction that starts with flu-like symptoms and progresses to circular lesions all over the skin and mucous membranes. When severe, it must be treated almost as a major burn- the fluids lost due to all of the damaged skin must be replaced intravenously, and particular lesion sites such as the eyes and throat must be monitored closely. Though SJS is rare overall (1 in 1 million incidence), HIV patients experience significantly more than that baseline rate especially because SJS can be provoked by the first-line ARV drug neviripine, as well as the sulfa drug antibiotics which all HIV+ children (ideally) take as prophylaxis. Mortality is about 40% for the untreated, as opposed to <5% for those given adequate hospital care.

To continue the story, as the boy was worsening, we heard from his uncle (and legal guardian) that they both needed to return to their home village or else the uncle would lose a lot of business at the grocery shop he runs. As much as the Baylor doctor-on-call Kebba tried to buy a few days for the boy in our hospital by explaining to his uncle that their local hospital would not have the ability to handle SJS complications and that transport there would be unsafe, he was not hearing it. Since the family had other relatives that live near to our city of Lilongwe, Kebba tried arguing that one of them should be called for and stay at the hospital with the boy so that the uncle could go back. That he still could not understand the logic of our argument baffled us. That’s when a nurse pulled us aside- she’d overheard the uncle speaking with a relative about what the REAL problem was: the uncle was afraid from the looks of the boy that he’d die here, and feared the cost of transporting the body back to their home village. This infuriated us, considering that the boy in question was STILL ALIVE and had a great chance of staying that way if cared for! However, Kebba was able to keep his cool and tactfully shame the uncle into letting the boy stay… after which he recovered and all was well. So I guess it took a village after all, with this one including a doctor that cares.

BTW- the picture is of me on a day trip into the actual village nearest Lilongwe… but I thought it’d be appropriate ;)

Some thoughts on road safety


June 25, 2007

Today on my morning walk to the hospital and clinic area, I saw one of the most horrifying sights of my life. Two men who were riding in the back of a pickup truck, sitting on the ledge of its bed as is customary here, fell off of it after a big bump. The truck was probably going about 40 mph, so their tumbling and rolling on the ground after the fall was none too subtle. The two of them landed about 10 feet in front of me on the footpath I was walking. One of them looked seriously injured with possible broken bones but was conscious; the other started violently convulsing, his eyes rolled back and his arms and legs flapping a length of about one foot back and forth. A crowd quickly formed around them and then quite a few eyes drifted over to me- I looked down and realized that the stethoscope dangling around my neck probably made me look like a medical godsend for the whole situation. Little did any of the passers-by realize that I was but a rising second-year medical student with minimal clinical experience! So as I was approached to help, I had to take the particularly cold stance of waving my hands in refusal. Instead I called up the hospital on my cell phone to let them know what was about to walk in the doors, and then directed the driver of the now-backed-up pickup to the hospital’s emergency room, luckily less than a half mile away.

I didn’t get a chance to follow up and see what happened with the two men, both healthy-looking laborers in the primes of their lives, probably on their way to a morning worksite. Unfortunately, based on the serious accident victims I’d thus far seen in the pediatric ward, I fear the worst for the convulsing one. Head trauma is one thing Malawi does not have the capacity to adequately identify or treat, considering that the country has no MRIs and only one CT scanner (which is located in the other major city five hours away and has been broken for the past month to boot). I still hope and pray for his recovery, but as he was picked up and placed back in the truck for the ER visit, the realist in me accepted I probably just bore witness to the beginning of the end of a perfectly good human life.

As shocking as this incident was from up close, the overall trend that it fits into is even scarier. In Malawi and a good part of the developing world, road traffic accidents are fast becoming one of the leading causes of death and disability. An overly simplified version of a convincing explanation that I heard presented once at Harvard by the head of the World Bank’s Road Safety group (I believe Tony Bliss was his name), is that creation of roads has far outpaced the ability of developing nations to maintain them and adequately regulate their use. At the heart of the matter is that grants are most quickly given, debts are most expediently forgiven, and political will is most easily garnered in these countries in the name of expanding the road network. This action fulfills one of the classic, easily measurable benchmarks of “development,” while the well-being of people who will be using those roads is often overlooked from the funding standpoint. Anecdotal case-in-point: Malawian road traffic control (an oxymoron if I’ve ever seen one). Aside from the one police vehicle that I’ve ever noticed during my entire stay here, all of the police I’ve seen have been on foot and located at well-known checkpoints. In order to “pull you over” they have to (1) catch you doing something illegal within eyesight of their checkpoints; (2) literally flag you down, hoping that you will actually stop for them because they can’t do anything if you decide not to; (3) not be influenced by small bribes that the driving elite of Malawi can easily afford; and (4) hitch a ride in your car to the police station to issue you a ticket! One of my friends here was in the back of an overflowing, unregistered pickup which upon being flagged by the police just drove off-road into the bush for a few hours until he was relatively sure that no more cops would be looking for him anymore. As you can imagine, people drive whatever speed they wish here, pack unfathomable numbers in their small trucks (20 is not unusual), weave around the giant potholes left behind in last year’s development “project” of a road, pass each other even in the face of oncoming trucks, and have astonishingly little regard for the myriad bicycles, pedestrians, and animals that share the roads. And don’t for a second think that seatbelts or bike helmets factor into the whole picture. Something’s gotta give… and I got a little taste of what that something is this very morning.

Wednesday, July 4, 2007

A week in the wards


June 22, 2007

After spending last week at Baylor's pediatric AIDS clinic, I spent all of this one in the pediatric ward of neighboring Kamuzu Central Hospital. KCH is where any of Baylor's 1800+ patients go when they become acutely ill and require inpatient treatment- so at any given time, at least one or two of Baylor's doctors are assigned to work the wards rather than the clinic. This week, I shadowed Anjalee.


The first day in the KCH pediatric wards was pretty shocking. (The picture above is really not representative of the week as a whole, but rather is from of the happiest moments with an almost-recovered patient who wouldn't leave my side.) From the outdoor courtyards in which dozens of mothers were washing clothes and preparing meals, to the three huge rooms of about 40 crying pediatric patients each, the sheer crowdedness of the whole scene overwhelmed me. Add to it all of the various hospital smells that wafted in from room to room, and you'd wonder whether anyone could ever recover from anything there. To the contrary, the end of my first day marked my first direct encounter with a patient's death. We had a 13 year old patient, Calvin, in the "high depenency unit" (HDU) with an acute febrile illness which we were not able to figure out. After assisting with a lumbar puncture on what seemed to be a much more serious patient, I returned to the HDU to find that Calvin had convulsed about 10 minutes earlier and was now dead, probably of a brain bleed- it turned out that he was a known hemophiliac. Now, I understand that throughout my career, I'll need to be prepared to deal with death- but this one really caught me by surprise and hit pretty hard.


In the wards here was the first time that the phrase "resource poor," which is thrown around all the time in public health and development literature, really began to hit home for me. Its not just that they don't have money here (they don't), but some truly necessary medical equipment does not exist in the entire country of Malawi. Case in point: we had another girl in acute renal failure from glomerulonephritis (an attack of the kidney's filtering ability), who hadn't passed urine for days and was thereby retained all of her water, making her one of the puffiest children I'd ever seen. According to the doctors, she probably could have gotten over her acute renal failure with just a few rounds of dialysis, allowing us to treat the cause of her illness. However, unlike in the US where dialysis is readily available in every city and small town, we were not able to put the proper equipment together for her after calling in favors from across the country. We had a hemodialysis machine but lacked a pediatric catheter- necessary for the patients 6 year old arms- and we knew of a peritoneal dialysis machine but had no fluid to use in it. By Thursday things were getting desperate and I contacted my uncle - a South African nephrologist - to see if he might be able to find one or the other and express ship it to Malawi. By the next day, he'd drummed up 24L of PD fluid and we contacted Air Malawi to help with shipping it here. Unfortunately, this effort was futile: right before the fluid was to be shipped, the girl suddenly took a turn for the worse and died. It was in all regards a death that never should have occurred. All in all, this was definitely a tough week for me to take in- but far worse for a few of our patients.


As bad as some of those anecdotes seem, I have to say that among our hospital's limitations, there were some really positive things happening there. For example, Anjalee and one of the other Baylor doctors started a study documenting the progress of a switch to "Plumpynut" calorie-filled peanut butter as a staple food for all children in moderate malnutrition status or worse. By procuring large quantities of this food and allocating it based on medical criteria, they methodologically showed that malnutrition can be combatted in a big way even in as poor a place as Lilongwe. The Nutritional Resource Unit, currently the emptiest ward with less than half of its ~60 beds full at any given time, used to have up to 3 children per bed just about one year ago, with high mortality rates to boot. Though the people here probably haven't gotten that much wealthier in a year's time, science and dedication has made quite an improvement. I am optimistic that there will be more success stories in the coming years as knowledge of and funding for international health picks up.




Wednesday, June 27, 2007

An educational field trip



Friday, June 15

Yesterday, I had the opportunity to accompany two of the Baylor Pediatric AIDS Corps (PAC) doctors to an educational seminar that they were putting on in the beautiful village of Ntchisi (see picture below), about 80 km north of where I'm staying in Lilongwe. The doctors, Maria and Saeed, were basically there to teach 60 of the local clinical officers (a training distinction somewhere in between doctor and nurse), nurses, and other medical personell how to treat pediatric HIV. Ever since Baylor moved into Lilongwe, its doctors were in demand from hospitals around the country; so they established an outreach program in order to systematically bring pediatric HIV care up to standards even far outside of Lilongwe.

Ntchisi's one conference center where the day-long session was supposed to occur was double booked for the day, with the other party arriving first- so we had to jerry rig this old municipal office for our needs and shift the large audience up the road. We had in-depth HIV treatment booklets to hand out to all of the attendees, which made it easier for them to follow along what was supposed to be a PowerPoint presentation while the power was out. Despite the technical difficulties, we had a rapt audience the whole time.

From Saeed and Maria's presentations, I learned a ton about pediatric HIV management as did many of the attendees, evidenced by the range and depth of questions they asked. I also gained some insight into approaches to medical education at large. There was a "quiz" before the session to see where the largest knowledge gaps were; I also took and filled out a copy. Looking at our responses, it was revealing that the clinical officers/nurses and I each got about half the questions right, but our strong halves barely overlapped! I answered most questions regarding the theory of disease correctly (eg. the intrinsic difference between a PCR and ELISA/rapid HIV tests) but floundered with the clinical signs and procedures (eg. the tricky drug regimen invoked for a new patient with both TB and AIDS). They aced the clinical stuff and stumbled on theory.

Before coming here, I had the misconception that one needed a full-out theory backed education prior to implementing knowledge in a clinical setting. However, in a country like Malawi which has the resources for supporting just one medical school (zero as of a few years ago), produces only ~20 doctors per year, and all the while faces huge health crises, a theory based education is something of a luxury. Both theory and clinical knowledge are ultimately important to medicine, as knowing the science behind your diagnoses, procedures, and prescriptions is what ultimately allows you to adapt to unforseen situations and advance knowledge. But it is the clinical knowledge which is immediately applicable and absolutely necessary for their jobs; in other words, its the the questions that they got right which save lives, while the ones I got right pass exams. The clinical officers and nurses are for the most part autonomous in their own health clinics and small regional hospitals, and the onus is on them to learn pretty much everything they need by doing... I've gained tremendous respect for them!

Though I wanted to include "facts of the day" explaining both the theory and clinical knowledge examples posted above, I've run out of internet time. I'll tackle these next post :)



Friday, June 22, 2007

Social complexities surrounding HIV and treatment

Tuesday, June 12

As anyone reading probably already knows, the social circumstances surrounding the HIV epidemic can be equally as frightening and complex as the biological realities of the disease. Out of the fifteen or so HIV patients I've seen so far, one of today’s stands out as an illuminating example of these commingling factors.

The patient was an adorable baby girl, about 15 months old, who presented with clinical manifestations of advancing HIV infection and a new, low CD4 T-cell count, both of which were inconsistent with the fact that she’d been on antiretroviral drugs (ARVs) through the Baylor clinic for many months now. In reality, she should have been way better this appointment, months after starting her on drug therapy, than when we’d first seen her and diagnosed her disease status. Why weren’t the drugs working? Well upon taking the social history, we discovered that there was a time period of almost one month, occurring shortly after starting ARV therapy, in which the baby was not given her daily drugs. Why on earth would that happen? Rewinding some more, the mother revealed that she had tried to divorce the baby’s father after he took up another wife elsewhere (polygamy exists to a small but noticeable degree in Malawi), and he out of anger took away the kids for a month during which she was unable to trace him. Except, dad forgot to bring the baby’s ARV drugs on his retaliation-kidnapping spree. Hence, baby has gotten a lot sicker. But there’s more to this case than meets the eye…

Before continuing, let me insert some HIV info which is extremely relevant to this case: Everytime a virion enters and takes control of a human cell, it gains the ability to produce billions of new viruses, ready to infect new cells. Antiretroviral drugs, as the name suggests, act against the retrovirus (HIV in this case) by inhibiting its ability to replicate, with different classes of ARVs using different mechanisms to accomplish this goal. It was discovered years ago though that when a single ARV is used, HIV’s imperfect replication machinery (which has been slowed but not completely stopped by the ARV) will often create a few new viruses that are resistant to the effects of the drug. While the rest of the virus copies stagnate in response to the drug, these few resistant ones grow vast in number and you’re back at square one. This is why you always treat HIV with a combination of about three ARVs: you can more thoroughly halt replication in the first place, and out of the mutated strains which are created, even those that can beat one drug are stopped by the others. Unfortunately, when a person stops taking their ARV “cocktail” as this combo is sometimes called, it lets the virus out of dormancy and gives it plenty of chance to mutate so much that new copies of it can beat ALL THREE of the drugs, rendering the ARV coctail useless for that patient. When resistance occurs, CD4 cell counts are depleted (as they would in a patient not on any treatment) and opportunistic infections can easily gain headway, leading to chronic illness or death. The only option is to treat with an entirely new combination of ARVs. In the US, we have quite a few options to use. However, in poor countries like Malawi, there is often one “first line” and another far costlier “second line,” with no other options after those are exhausted.

Now, back to the baby girl in room 4. We call over the social worker and all together make sure that the father is as out of the picture as possible. Yes, the divorce seems to be finally going through; yes, thanks to the strong will of the mom, dad now understands that taking the baby away one more time will be essentially the same as killing her. OK, fine- we counsel the mother on the grave importance of sticking through on every dose of the second line drugs we’re about to prescribe, and makes sure she knows that any form of non-compliance to these will render the baby’s HIV untreatable. Finally, we teach her how to administer these separate drugs (far more complex than the convenient “three-in-one” pill first line) and send her home with them, in the back of our minds still worried that history might repeat itself, but this time offer no way out for the victim in the middle of it all.

First day at the clinic


Monday, June 11

My first day at the clinic has finally arrived. My housemate Nader (himself a doctor at the Baylor clinic) drove the two of us in by about 8 am to get started. The place is beautiful- brand new, well equipped, featuring a triage room, a procedures room, about seven examining rooms, X-ray, well stocked in-house pharmacy, staff kitchen, conference room, lecture hall, library, computer lab, offices, and I’m probably still leaving out a bunch. Every morning, there are about 50 or 60 patients and their parents – mainly moms – waiting in the waiting area. Some of them have literally walked about 10 km with kids in tow to get here while others have taken a 3 hour bus ride in the early morning; yet others came by some combination of those. And in line with BIPAI’s mission, all the patients are HIV+.

On any given day, some of the appointments at the Baylor clinic are prescheduled while many others are “sick visits” in response to any of the plethora of opportunistic infections that HIV+ kids are consistently plagued by. For life-threatening emergencies, we send the kids right next door to the pediatric ward at Kamuzu Central Hospital, where I will also get some chances to work starting next week. My role at the clinic, anyway, will be to shadow any of the clinic doctors during their days of office visits, eventually actually taking some histories and conducting physical exams on my own (with some supervision of course.)

Now for the HIV fact of the day:
I mentioned that all the kids we see are HIV+. In fact, in taking the social histories for any of the given cases, I realized that almost all of their mothers are as well. Here in Malawi (and probably in much of Africa) 90% of HIV+ kids under age 16 got the disease from their mothers, either during pregnancy when the virus crossing the placenta, during birth with their exposure to the mothers fluids, or during breastfeeding as the virus is present in high amounts in breast milk. This mode of getting the disease is referred to as “vertical transmission.” Without any kind of prophylaxis or precautions, an HIV+ mother will pass on the virus to a full third of her children. However, if she and the baby are given the antiretroviral drug nevirapine and the delivery mode is Caesarian section, the risk of vertical transmission drops to 2%. Considering that fact, vertical transmission is an all-too-frequent occurrence in the developing world often due to mothers not knowing their own HIV status or not having the resources to access this type of care.